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Mechanotransduction and Skeletal Muscle Atrophy: The Interplay Between Focal Adhesions and Oxidative Stress
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Epigenetic Echoes: Bridging Nature, Nurture, and Healing Across Generations
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TL1A as a Target in Inflammatory Bowel Disease: Exploring Mechanisms and Therapeutic Potential
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Nanozymes: Innovative Therapeutics in the Battle Against Neurodegenerative Diseases
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Breaking the Barrier: The Role of Proinflammatory Cytokines in BBB Dysfunction
Journal Description
International Journal of Molecular Sciences
International Journal of Molecular Sciences
is an international, peer-reviewed, open access journal providing an advanced forum for biochemistry, molecular and cell biology, molecular biophysics, molecular medicine, and all aspects of molecular research in chemistry, and is published semimonthly online by MDPI. The Australian Society of Plant Scientists (ASPS), Epigenetics Society, European Chitin Society (EUCHIS), Spanish Society for Cell Biology (SEBC) and others are affiliated with IJMS and their members receive a discount on the article processing charges.
- Open Access— free for readers, with article processing charges (APC) paid by authors or their institutions.
- High Visibility: indexed within Scopus, SCIE (Web of Science), PubMed, PMC, MEDLINE, Embase, CAPlus / SciFinder, and other databases.
- Journal Rank: JCR - Q1 (Biochemistry and Molecular Biology) / CiteScore - Q1 (Organic Chemistry)
- Rapid Publication: manuscripts are peer-reviewed and a first decision is provided to authors approximately 20.5 days after submission; acceptance to publication is undertaken in 2.6 days (median values for papers published in this journal in the first half of 2025).
- Recognition of Reviewers: reviewers who provide timely, thorough peer-review reports receive vouchers entitling them to a discount on the APC of their next publication in any MDPI journal, in appreciation of the work done.
- Testimonials: See what our editors and authors say about IJMS.
- Companion journals for IJMS include: Biophysica, Stresses, Lymphatics and SynBio.
Impact Factor:
4.9 (2024);
5-Year Impact Factor:
5.7 (2024)
Latest Articles
Interleukin Dynamics and Their Correlation with Tumor Aggressiveness in Colorectal Carcinoma
Int. J. Mol. Sci. 2025, 26(14), 7027; https://doi.org/10.3390/ijms26147027 - 21 Jul 2025
Abstract
Colorectal cancer (CRC) is a major global health concern, with tumor progression closely influenced by inflammatory mechanisms and cytokine signaling. This study investigates the serum expression levels of interleukins IL-8, IL-17A, and IL-33 in patients with colon cancer, analyzing their association with tumor
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Colorectal cancer (CRC) is a major global health concern, with tumor progression closely influenced by inflammatory mechanisms and cytokine signaling. This study investigates the serum expression levels of interleukins IL-8, IL-17A, and IL-33 in patients with colon cancer, analyzing their association with tumor grade and depth of invasion. The cohort included 42 patients stratified by tumor differentiation (G1–G3) and various invasion types. ELISA assays revealed that IL-8 levels were highest in well-differentiated tumors and in cases of submucosal and serosal invasion, suggesting a key role in early stage inflammation and angiogenesis. IL-17A and IL-33 levels declined progressively with tumor dedifferentiation and increased invasion depth, indicating immune suppression in advanced stages. Multiple regression analyses highlighted a nonlinear, significant relationship between IL-8 and IL-17A, whereas IL-33 showed no direct correlation with other interleukins. A combined model incorporating IL-8, IL-17A, IL-33, and tumor grade accounted for over 70% of IL-17A variability, underscoring their interactive role in CRC biology. These findings support the potential utility of interleukins as biomarkers and therapeutic targets for stratified CRC management.
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(This article belongs to the Special Issue Molecular Diagnosis and Treatment of Colorectal Cancer)
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Curcumin and Dementia: A Systematic Review of Its Effects on Oxidative Stress and Cognitive Outcomes in Animal Models
by
Samuel Abiodun Kehinde, Wai Phyo Lin, Bo Bo Lay, Khin Yadanar Phyo, Myat Mon San, Rinrada Pattanayaiying and Sasitorn Chusri
Int. J. Mol. Sci. 2025, 26(14), 7026; https://doi.org/10.3390/ijms26147026 - 21 Jul 2025
Abstract
Dementia is marked by progressive cognitive decline linked to oxidative stress, neuroinflammation, and synaptic dysfunction. Curcumin, a natural compound from Curcuma longa, has shown promising neuroprotective effects. This systematic review analyzed 29 preclinical studies using rodent models of dementia induced by chemical, genetic,
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Dementia is marked by progressive cognitive decline linked to oxidative stress, neuroinflammation, and synaptic dysfunction. Curcumin, a natural compound from Curcuma longa, has shown promising neuroprotective effects. This systematic review analyzed 29 preclinical studies using rodent models of dementia induced by chemical, genetic, or dietary methods. The review focused on curcumin’s effects on oxidative stress, inflammation, and cognitive outcomes. All studies assessing malondialdehyde (MDA) reported significant reductions, indicating reduced oxidative stress. Superoxide dismutase (SOD) activity increased in all measured cases, while glutathione (GSH) levels rose in about one-third of studies. A literature search was comprehensively conducted using PubMed, Scopus, AMED, and LILACS databases through April 2024. Curcumin also demonstrated anti-inflammatory properties, with over 80% of studies showing reduced levels of pro-inflammatory cytokines such as TNF-α, IL-6, and IL-1β. Additionally, 40% of studies noted increases in anti-inflammatory markers like IL-4 and IGF-1. Cognitive performance improved in around 80% of studies, especially in spatial learning and memory. Some studies also reported behavioral improvements, including reduced anxiety and enhanced locomotion. Curcumin demonstrated potent antioxidative, anti-inflammatory, and cognitive-enhancing effects across diverse dementia models. Its ability to modulate multiple pathological pathways highlights its potential as a bioactive compound for mitigating cognitive decline associated with neurodegenerative diseases. However, variability in study design and curcumin formulations suggests the need for standardized protocols and further high-quality research to facilitate clinical translation.
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(This article belongs to the Special Issue Autophagy, Cellular Senescence and Oxidative Stress in Ageing and Age-Related Diseases)
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Open AccessArticle
Lipid Oxidation of Stored Brown Rice Changes Ileum Digestive and Metabolic Characteristics of Broiler Chickens
by
Beibei He, Xueyi Zhang, Weiwei Wang, Li Wang, Jingjing Shi, Kuanbo Liu, Junlin Cheng, Yongwei Wang and Aike Li
Int. J. Mol. Sci. 2025, 26(14), 7025; https://doi.org/10.3390/ijms26147025 - 21 Jul 2025
Abstract
Long-term storage may induce lipid oxidation in brown rice and impact its utilization in animal diets. One-day-old male Ross 308 broiler chickens (with an initial body weight of 20 g) were randomly divided into three groups: corn-based diet (Corn), fresh brown rice-based diet
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Long-term storage may induce lipid oxidation in brown rice and impact its utilization in animal diets. One-day-old male Ross 308 broiler chickens (with an initial body weight of 20 g) were randomly divided into three groups: corn-based diet (Corn), fresh brown rice-based diet (BR1) and stored brown rice-based diet (BR6), with 8 replicates of 10 birds per pen, in a 42-day feeding trial. The results showed that lipid oxidation indexes increased and fatty acid composition changed significantly in BR6 (p < 0.05). The dietary replacement of corn with brown rice showed no effects on growth performance of broilers (p > 0.05). However, palmitic acid and oleic acid increased, and stearic acid, linoleic acid and docosadienoic acid decreased in the broiler breast muscle of the BR1 and BR6 groups (p < 0.05). Ileum antioxidant enzyme activities increased in the BR1 and BR6 groups compared to the Corn group (p < 0.05), and the activities of α-amylase, trypsin, chymotrypsin and lipase decreased in the BR6 group compared to the BR1 and Corn groups (p < 0.05). Also, compared to the BR1 group, the overall expression of metabolites involved in drug metabolism—cytochrome P450, GnRH secretion and the estrogen signaling pathway in broiler ileum were down-regulated in the BR6 group (p < 0.05). In conclusion, the lipid oxidation of stored brown rice decreased digestive enzyme activities and changed metabolic characteristics in the ileum of broilers. While replacing corn with brown rice did not affect broiler growth performance, it reduced the contents of unsaturated and essential fatty acids in breast muscle and enhanced the ileal antioxidant functions of broilers.
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(This article belongs to the Section Molecular Endocrinology and Metabolism)
Open AccessArticle
IFNγ Expression Correlates with Enhanced Cytotoxicity in CD8+ T Cells
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Varsha Pattu, Elmar Krause, Hsin-Fang Chang, Jens Rettig and Xuemei Li
Int. J. Mol. Sci. 2025, 26(14), 7024; https://doi.org/10.3390/ijms26147024 - 21 Jul 2025
Abstract
CD8+ T lymphocytes (CTLs) act as serial killers of infected or malignant cells by releasing large amounts of interferon-gamma (IFNγ) and granzymes. Although IFNγ is a pleiotropic cytokine with diverse immunomodulatory functions, its precise spatiotemporal regulation and role in CTL-mediated cytotoxicity remain incompletely
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CD8+ T lymphocytes (CTLs) act as serial killers of infected or malignant cells by releasing large amounts of interferon-gamma (IFNγ) and granzymes. Although IFNγ is a pleiotropic cytokine with diverse immunomodulatory functions, its precise spatiotemporal regulation and role in CTL-mediated cytotoxicity remain incompletely understood. Using wild-type and granzyme B-mTFP knock-in mice, we employed a combination of in vitro approaches, including T cell isolation and culture, plate-bound anti-CD3e stimulation, degranulation assays, flow cytometry, immunofluorescence, and structured illumination microscopy, to investigate IFNγ dynamics in CTLs. IFNγ expression in CTLs was rapid, transient, and strictly dependent on T cell receptor (TCR) activation. We identified two functionally distinct IFNγ-producing subsets: IFNγhigh (IFNγhi) and IFNγlow (IFNγlo) CTLs. IFNγhi CTLs exhibited an effector/effector memory phenotype, significantly elevated CD107a surface expression (a marker of lytic granule exocytosis), and higher colocalization with cis-Golgi and granzyme B compared to IFNγlo CTLs. Furthermore, CRTAM, an early activation marker, correlated with IFNγ expression in naive CTLs. Our findings establish a link between elevated IFNγ production and enhanced CTL cytotoxicity, implicating CRTAM as a potential regulator of early CTL activation and IFNγ induction. These insights provide a foundation for optimizing T cell-based immunotherapies against infections and cancers.
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(This article belongs to the Section Molecular Immunology)
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Neurosteroids, Microbiota, and Neuroinflammation: Mechanistic Insights and Therapeutic Perspectives
by
Amal Tahri, Elena Niccolai and Amedeo Amedei
Int. J. Mol. Sci. 2025, 26(14), 7023; https://doi.org/10.3390/ijms26147023 - 21 Jul 2025
Abstract
The gut–brain axis (GBA) represents a complex bidirectional communication network that links the gut microbiota (GM) and the central nervous system (CNS). Recent research has revealed that neurosteroids (NSs) play crucial roles in modulating neuroinflammatory responses and promoting neuroprotection. Meanwhile, GM alterations have
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The gut–brain axis (GBA) represents a complex bidirectional communication network that links the gut microbiota (GM) and the central nervous system (CNS). Recent research has revealed that neurosteroids (NSs) play crucial roles in modulating neuroinflammatory responses and promoting neuroprotection. Meanwhile, GM alterations have been associated with various neuroinflammatory and neurodegenerative conditions, such as multiple sclerosis, Alzheimer’s disease, and amyotrophic lateral sclerosis. This review aims to provide a comprehensive overview of the intricate interactions between NS, GM, and neuroinflammation. We discuss how NS and metabolites can influence neuroinflammatory pathways through immune, metabolic, and neuronal mechanisms. Additionally, we explore how GM modulation can impact neurosteroidogenesis, highlighting potential therapeutic strategies that include probiotics, neuroactive metabolites, and targeted interventions. Understanding these interactions may pave the way for innovative treatment approaches for neuroinflammatory and neurodegenerative diseases, promoting a more integrated view of brain health and disease management.
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(This article belongs to the Collection Feature Paper Collection in Molecular Endocrinology and Metabolism)
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Harnessing Plant-Based Nanoparticles for Targeted Therapy: A Green Approach to Cancer and Bacterial Infections
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Mirela Claudia Rîmbu, Daniel Cord, Mihaela Savin, Alexandru Grigoroiu, Mirela Antonela Mihăilă, Mona Luciana Gălățanu, Viorel Ordeanu, Mariana Panțuroiu, Vasilica Țucureanu, Iuliana Mihalache, Oana Brîncoveanu, Adina Boldeiu, Veronica Anăstăsoaie, Carmen Elisabeta Manea, Roxana-Colette Sandulovici, Marinela Chirilă, Adina Turcu-Știolică, Emilia Amzoiu, Victor-Eduard Peteu, Cristiana Tănase, Bogdan Firtat and Carmen-Marinela Mihăilescuadd
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Int. J. Mol. Sci. 2025, 26(14), 7022; https://doi.org/10.3390/ijms26147022 - 21 Jul 2025
Abstract
This study investigates the antioxidant, antimicrobial, and antitumor activities of Taraxacum officinale (Dandelion) and Artemisia annua (Sweet Wormwood) extracts, along with their role in the green synthesis of gold (AuNPs) and silver nanoparticles (AgNPs). Bioreduction was achieved using aqueous and ethanolic extracts (100
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This study investigates the antioxidant, antimicrobial, and antitumor activities of Taraxacum officinale (Dandelion) and Artemisia annua (Sweet Wormwood) extracts, along with their role in the green synthesis of gold (AuNPs) and silver nanoparticles (AgNPs). Bioreduction was achieved using aqueous and ethanolic extracts (100 mg/mL), enabling solvent-dependent comparisons. Nanoparticles were characterized using ultraviolet–visible spectroscopy (UV–Vis), fluorescence spectroscopy, scanning electron microscopy (SEM), dynamic light scattering (DLS), high-resolution transmission electron microscopy (HRTEM), and zeta potential analysis. Each technique revealed complementary aspects of nanoparticle morphology, size, and stability, with UV–Vis indicating aggregation states and DLS confirming solvent-related size variation even at 3–5% ethanol. Gold nanoparticles synthesized from Dandelion showed strong antibacterial activity against Staphylococcus aureus, while silver nanoparticles from both plants were effective against Escherichia coli. Cytotoxicity assays indicated that silver nanoparticles obtained from ethanolic Dandelion extract containing 3% ethanol in aqueous solution (AgNPsEETOH3%-D) significantly reduced LoVo (p = 4.58 × 10−3) and MDA-MB-231 (p = 7.20 × 10−5) cell viability, with high selectivity indices (SI), suggesting low toxicity toward normal cells. Gold nanoparticles synthesized from aqueous Dandelion extract (AuNPsEaq-D) also showed favorable SI values (2.16 for LoVo and 8.41 for MDA-MB-231). Although some formulations demonstrated lower selectivity (SI < 1.5), the findings support the therapeutic potential of these biogenic nanoparticles. Further in vivo studies and pharmacokinetic evaluations are required to validate their clinical applicability.
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(This article belongs to the Special Issue Molecular Characterization and Applications of Nanomaterials in Nanomedicine and Cancer Therapy)
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Cytochalasins Suppress 3D Migration of ECM-Embedded Tumoroids at Non-Toxic Concentrations
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Klara Beslmüller, Lieke J. A. van Megen, Timo Struik, Daisy Batenburg, Elsa Neubert, Tom M. J. Evers, Alireza Mashaghi and Erik H. J. Danen
Int. J. Mol. Sci. 2025, 26(14), 7021; https://doi.org/10.3390/ijms26147021 - 21 Jul 2025
Abstract
Migrastatic strategies are considered as candidate therapeutic approaches to suppress cancer invasion into local surrounding tissues and metastatic spread. The F-actin cytoskeleton is responsible for key properties regulating (cancer) cell migration. The cortical F-actin network controls cell stiffness, which, in turn, determines cell
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Migrastatic strategies are considered as candidate therapeutic approaches to suppress cancer invasion into local surrounding tissues and metastatic spread. The F-actin cytoskeleton is responsible for key properties regulating (cancer) cell migration. The cortical F-actin network controls cell stiffness, which, in turn, determines cell migration strategies and efficiency. Moreover, the dynamic remodeling of F-actin networks mediating filopodia, lamellipodia, and F-actin stress fibers is crucial for cell migration. Here, we have used a conditional knockout approach to delete cofilin, an F-actin-binding protein that controls severing. We find that the deletion of cofilin prevents the migration of cancer cells from tumoroids into the surrounding extracellular matrix without affecting their viability. This identifies cofilin as a candidate target to suppress metastatic spread. Pharmacological inhibitors interfering with F-actin dynamics have been developed but their effects are pleiotropic, including severe toxicity, and their impact on 3D tumor cell migration has not been tested or separated from this toxicity. Using concentration ranges of a panel of inhibitors, we select cytochalasins based on the suppression of 2D migration at non-toxic concentrations. We then show that these attenuate the escape of tumor cells from tumoroids and their migration into the surrounding extracellular matrix without toxicity in 3D cultures. This effect is accompanied by suppression of cell stiffness at such non-toxic concentrations, as measured by acoustic force spectroscopy. These findings identify cytochalasins B and D as candidate migrastatic drugs to suppress metastatic spread.
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(This article belongs to the Section Molecular Pathology, Diagnostics, and Therapeutics)
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Improved Degradome Sequencing Protocol via Reagent Recycling from sRNAseq Library Preparations
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Marta Puchta-Jasińska, Jolanta Groszyk and Maja Boczkowska
Int. J. Mol. Sci. 2025, 26(14), 7020; https://doi.org/10.3390/ijms26147020 - 21 Jul 2025
Abstract
One of the key elements in the analysis of gene expression and its post-translational regulation is miRNAs. Degradome-seq analyses are performed to analyze the cleavage of target RNAs in the transcriptome. This work presents the first degradome-seq library preparation protocol that enables successful
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One of the key elements in the analysis of gene expression and its post-translational regulation is miRNAs. Degradome-seq analyses are performed to analyze the cleavage of target RNAs in the transcriptome. This work presents the first degradome-seq library preparation protocol that enables successful construction of libraries, even from highly degraded RNA samples with RIN below 3, thus significantly expanding the possibilities for research when working with low-quality material. The developed protocol improves the efficiency of library preparation in degradome-seq analysis used to identify miRNA targets, reduces library preparation time, and lowers the cost of purchasing reagents by using reagents from the RNA-seq library preparation kit and proprietary-designed primers. A crucial feature of this new protocol is optimizing the purification step for short library fragments, which increases the yield of correctly sized fragments compared to previously used methods. This is achieved by implementing an original method involving tube-spin purification with gauze and precipitation using sodium acetate with glycogen, greatly enhancing recovery efficiency—a factor especially critical when working with degraded RNA. Cloning to a plasmid and sequencing of the inserted fragment verified the correctness of the library preparation using the developed protocol. This protocol represents a groundbreaking tool for degradome research, enabling the construction and sequencing of degradome libraries, even from degraded samples previously considered unsuitable for such analyses. This is due to the use of residues from the sRNA-seq library kit. It noticeably reduces the cost of library construction. The precision of the excised fragment after electrophoresis was performed during the procedure to isolate fragments of the correct length, which was improved using additional size markers. Compared to previously used methods, optimizing the purification method of degradome-seq libraries allowed an increase in the yield of fragments obtained.
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(This article belongs to the Special Issue Advances in Seed Development and Germination)
Open AccessArticle
Glycerol Biosynthesis Pathways from Starch Endow Dunaliella salina with the Adaptability to Osmotic and Oxidative Effects Caused by Salinity
by
Huiying Yao, Yi Xu, Huahao Yang, Yihan Guo, Pengrui Jiao, Dongyou Xiang, Hui Xu and Yi Cao
Int. J. Mol. Sci. 2025, 26(14), 7019; https://doi.org/10.3390/ijms26147019 - 21 Jul 2025
Abstract
Dunaliella salina, a unicellular and eukaryotic alga, has been found to be one of the most salt-tolerant eukaryotes with a wide range of practical applications. To elucidate the underlying molecular mechanisms of D. salina in response to salinity stress, we performed transcriptome
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Dunaliella salina, a unicellular and eukaryotic alga, has been found to be one of the most salt-tolerant eukaryotes with a wide range of practical applications. To elucidate the underlying molecular mechanisms of D. salina in response to salinity stress, we performed transcriptome sequencing on samples under different stress conditions. A total of 82,333 unigenes were generated, 4720, 1111 and 2611 differentially expressed genes (DEGs) were identified under high salt stress, oxidative stress and hypertonic stress, respectively. Our analysis revealed that D. salina responds to salinity stress through a complex network of molecular mechanisms. Under high salt stress, starch degradation is regulated by AMY (α-amylase) and PYG (glycogen phosphorylase) with alternative expression patterns. This process is hypothesized to be initially constrained by low ATP levels due to impaired photosynthesis. The clustering analysis of DEGs indicated that starch and sucrose metabolism, as well as glycerol metabolism, are specifically reprogrammed under high salt stress. Glycerol metabolism, particularly involving GPDHs, plays a crucial role in maintaining osmotic balance under salinity stress. Key glycerol metabolism genes were up-regulated under salinity conditions, indicating the importance of this pathway in osmotic regulation. The G3P shuttle, involving mitochondrial GPDHs (c25199_g1 and c23777_g1), contributes to redox imbalance management under high salt, oxidative and hypertonic stresses. Notably, c23777_g1 is involved in the G3P shuttle under high salt, oxidative and hypertonic stresses, while c25199_g1 is specifically induced by hypertonic stress. The R2R3-MYB gene (c23845_g1) may respond to different effects of salinity stress by regulating the transcription of ROS-related genes. Our study provides a detailed understanding of the molecular responses of D. salina to salinity stress. We reveal the critical roles of starch and sucrose metabolism, glycerol metabolism and transcription factors in the D. salina adaptation to salinity.
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(This article belongs to the Special Issue Advance in Plant Abiotic Stress: 3rd Edition)
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Impact of Food Exposome on Atherosclerotic Plaque Stability: Metabolomic Insights from Human Carotid Endarterectomy Specimen
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Emilie Doche, Barbara Leclercq, Constance Sulowski, Ellen Magoncia, Catherine Tardivel, Ljubica Svilar, Gabrielle Sarlon-Bartoli, Jean-Charles Martin, Michel Bartoli, Alexandre Rossillon and Laurent Suissa
Int. J. Mol. Sci. 2025, 26(14), 7018; https://doi.org/10.3390/ijms26147018 - 21 Jul 2025
Abstract
Carotid atherosclerotic stenosis (CAS) is a leading cause of ischemic stroke. Current understanding of plaque vulnerability remains largely confined to histopathological characterization. Consequently, identifying molecular determinants of plaque stability represents a major challenge to advance prevention strategies. Untargeted metabolomic analysis was performed using
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Carotid atherosclerotic stenosis (CAS) is a leading cause of ischemic stroke. Current understanding of plaque vulnerability remains largely confined to histopathological characterization. Consequently, identifying molecular determinants of plaque stability represents a major challenge to advance prevention strategies. Untargeted metabolomic analysis was performed using mass spectrometry coupled to liquid chromatography on carotid plaques removed from patients with CAS undergoing endarterectomy. To identify factors influencing plaque stability, we compared 42 asymptomatic with 30 symptomatic CAS patients. Associations between each annotated metabolite in plaques and asymptomatic CAS status were assessed using logistic regression models. Asymptomatic patients exhibited lower plasmatic levels of C-reactive protein (CRP) and higher HDL-cholesterol. Within the plaques, caffeine and its catabolites, paraxanthine and methylxanthine, were associated with plaque stability and were correlated with HDL-cholesterol. Additional plant-based diet biomarkers including N5-acetylornithine, gentisic acid, proline betaine, and homostachydrine were also associated with plaque stability. In contrast, N-methylpyridone carboxamides, reflecting niacin excess, involved in vascular inflammatory processes, were both associated with plaque vulnerability and also correlated with higher CRP. Our findings provide molecular evidence that plant-based diets, including coffee, promote carotid plaque stability, while excessive niacin intake, linked to processed foods, may be detrimental. Metabolomics offers new insights into food exposome-related vascular risk.
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(This article belongs to the Special Issue Bioactive Compounds from Foods Against Diseases)
Open AccessArticle
Molecular Landscape of Metastatic Lung Adenocarcinoma in Bulgarian Patients—A Prospective Study
by
George Dimitrov, Vladislav Nankov, Natalia Chilingirova, Zornitsa Kamburova and Savelina Popovska
Int. J. Mol. Sci. 2025, 26(14), 7017; https://doi.org/10.3390/ijms26147017 - 21 Jul 2025
Abstract
Lung adenocarcinoma exhibits a heterogeneous molecular landscape shaped by key oncogenic drivers and tumor suppressor gene alterations. Mutation frequencies vary geographically, influenced by genetic ancestry and environmental factors. However, the molecular profile of lung adenocarcinoma in Bulgarian patients remains largely uncharacterized. We conducted
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Lung adenocarcinoma exhibits a heterogeneous molecular landscape shaped by key oncogenic drivers and tumor suppressor gene alterations. Mutation frequencies vary geographically, influenced by genetic ancestry and environmental factors. However, the molecular profile of lung adenocarcinoma in Bulgarian patients remains largely uncharacterized. We conducted a prospective study of 147 Bulgarian patients with metastatic lung adenocarcinoma, analyzing clinicopathologic features and somatic mutation frequencies using next-generation sequencing. Key mutations and their prevalence were assessed and compared with published data from other populations. The cohort included predominantly male patients (68.0%) with a median age of 67 years. TP53 mutations were most frequent (41.5%), followed by EGFR alterations (19.0%) and KRAS c.34G>T (p.Gly12Cys) (17.0%). Over half of the patients (51.0%) harbored two or more gene mutations. Mutation frequencies aligned closely with European cohorts, exhibiting a lower prevalence of EGFR mutations compared to East Asian populations. This study characterizes the molecular landscape of lung adenocarcinoma in Bulgaria, highlighting the predominance of TP53 and KRAS mutations. The findings emphasize the need for comprehensive molecular profiling to inform targeted therapies and support precision oncology approaches tailored to the Bulgarian population. Further research is needed to validate these results and improve clinical outcomes.
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(This article belongs to the Special Issue Advances in Lung Cancer: From Genetic Landscape to Treatment)
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Correlation and Risk Assessment of Inflammation-Based Parameters on Cardiovascular Parameters and Clinical Events in Giant Cell Arteritis: A Retrospective Study
by
Leyla Schweiger, Andreas Meinitzer, Dieter Szolar, Marianne Brodmann, Christian Dejaco, Franz Hafner and Philipp Jud
Int. J. Mol. Sci. 2025, 26(14), 7016; https://doi.org/10.3390/ijms26147016 - 21 Jul 2025
Abstract
This study investigated associations of inflammation-based biomarkers with endothelial dysfunction and lipids and their predictive value for clinical outcome parameters in patients with giant cell arteritis (GCA). A total of 138 patients with inactive GCA were retrospectively analyzed to investigate potential differences in
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This study investigated associations of inflammation-based biomarkers with endothelial dysfunction and lipids and their predictive value for clinical outcome parameters in patients with giant cell arteritis (GCA). A total of 138 patients with inactive GCA were retrospectively analyzed to investigate potential differences in inflammatory biomarkers regarding clinical GCA subtypes and potential correlations between inflammatory parameters with markers of endothelial dysfunction and lipid parameters. Additionally, the predictive role of inflammatory biomarkers for clinical outcomes, including disease relapse, all-cause mortality, cardiovascular events, and glucocorticoid adverse effects, was analyzed. GCA individuals without concomitant symptoms of polymyalgia rheumatica and those who received initial glucocorticoid pulse therapy exhibited significantly higher levels of white blood cells and neutrophils (all with p < 0.05). No other significant differences were observed between inflammatory biomarkers and clinical GCA subtypes. Additionally, significant correlations were identified between selected inflammation-based ratios and specific markers of endothelial dysfunction and lipid parameters (all with p < 0.05). Elevated white blood cells and neutrophils were significant and independent predictors of disease relapse in GCA (all with p < 0.05) in multiple logistic regression analysis. No significant associations were found between any other inflammatory biomarker and the occurrence of cardiovascular events, mortality, or glucocorticoid-related adverse effects. In patients with inactive GCA, selected inflammatory parameters correlated with endothelial dysfunction and dyslipidemia and may be predictive of disease relapse.
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(This article belongs to the Special Issue Forward in Vasculitis: Genetics and Beyond)
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Advanced Research on Biological Properties—A Study on the Activity of the Apis mellifera Antioxidant System and the Crystallographic and Spectroscopic Properties of 7-Diethylamino-4-hydroxycoumarin
by
Klaudia Rząd, Iwona Budziak-Wieczorek, Aneta Strachecka, Patrycja Staniszewska, Adam Staniszewski, Anna Gryboś, Alicja Matwijczuk, Bożena Gładyszewska, Karolina Starzak, Anna A. Hoser, Maurycy E. Nowak, Małgorzata Figiel, Sylwia Okoń and Arkadiusz Paweł Matwijczuk
Int. J. Mol. Sci. 2025, 26(14), 7015; https://doi.org/10.3390/ijms26147015 - 21 Jul 2025
Abstract
The search for substances that increase the immunity of bees is becoming a necessity in the era of various environmental threats and the declining immunocompetence of these insects. Therefore, we tested the biological and physicochemical properties of 7-diethylamino-4-hydroxycoumarin (7DOC). In a cage test,
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The search for substances that increase the immunity of bees is becoming a necessity in the era of various environmental threats and the declining immunocompetence of these insects. Therefore, we tested the biological and physicochemical properties of 7-diethylamino-4-hydroxycoumarin (7DOC). In a cage test, two groups of bees were created: a control group fed with sugar syrup and an experimental group fed with sugar syrup with the addition of 7DOC. In each group, the longevity of the bees was determined and the protein concentrations and antioxidant activities in the bees’ hemolymph were determined. The bees fed with 7DOC lived 2.7 times longer than those in the control group. The protein concentrations and activities of SOD, CAT, GPx and GST, as well as the TAC levels, were significantly higher in the hemolymph of the supplemented workers. To confirm these potent biological properties of 7DOC, the UV-Vis spectra, emission and excitation of fluorescence, synchronous spectra and finally the fluorescence lifetimes of this compound were measured using the time-correlated single photon counting method, in various environments differing in polarity and in the environment applied in bee research. This compound was shown to be sensitive to changes in solvent polarity. The spectroscopic assays were complemented with crystallographic tests of the obtained monocrystals of the aforementioned compounds, which attested to the aggregation effects observed in the spectra measurements for the selected coumarin. The research results confirm that this compound has the potential to be implemented in apiary management, which will be our application goal, but further research into apiary conditions is required.
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(This article belongs to the Section Bioactives and Nutraceuticals)
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A Diet Rich in Essential Amino Acids Inhibits the Growth of HCT116 Human Colon Cancer Cell In Vitro and In Vivo
by
Giovanni Corsetti, Claudia Romano, Silvia Codenotti, Evasio Pasini, Alessandro Fanzani, Tiziano Scarabelli and Francesco S. Dioguardi
Int. J. Mol. Sci. 2025, 26(14), 7014; https://doi.org/10.3390/ijms26147014 - 21 Jul 2025
Abstract
The metabolic hyperactivity of tumor cells demands a substantial amount of energy and molecules to build new cells and expand the tumor, diverting these resources from healthy cells. Amino acids (AAs) are the only totipotent and essential molecules for protein construction. Previous in
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The metabolic hyperactivity of tumor cells demands a substantial amount of energy and molecules to build new cells and expand the tumor, diverting these resources from healthy cells. Amino acids (AAs) are the only totipotent and essential molecules for protein construction. Previous in vitro studies in human and murine cancer cells, along with in vivo studies in mice, have shown that an excess of essential amino acids (EAAs) exerts an inhibitory effect on tumor proliferation by promoting apoptosis and autophagy. In this study, both in vitro and in vivo, we evaluated whether a mixture based on EAA can influence the development of human colon cancer (HCT116). To this end, in vitro, we assessed the proliferation of HCT116 cells treated with a special mix of EAA. In vivo, immunosuppressed athymic nude mice, injected with HCT116 cells subcutaneously (s.c.) or intraperitoneally (i.p.), were given a modified EAAs-rich diet (EAARD) compared to the standard laboratory diet (StD). In vitro data showed that the EAA mix impairs cancer growth by inducing apoptosis and autophagy. In vivo, the results demonstrated that EAARD-fed mice developed s.c. tumors significantly smaller than those of StD-fed mice (total mass 3.24 vs. 6.09 g, respectively). Mice injected i.p. and fed with EAARD showed a smaller and more limited number of intra-peritoneal tumors than StD-fed mice (total mass 0.79 vs. 4.77 g, respectively). EAAs prevents the growth of HCT116 cells by inducing autophagy and apoptosis, increasing endoplasmic reticulum stress, and inhibiting inflammation and neo-vascularization. In addition, the EAARD-fed mice, maintained muscle mass and white and brown adipose tissues. A diet with an excess of EAAs affects the survival and proliferative capacity of human colon cancer cells, maintaining anabolic stimuli in muscular cells.
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(This article belongs to the Special Issue Innovative Research on Nutrition and Epigenetics in Cancer)
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Open AccessReview
Thriving or Withering? Plant Molecular Cytogenetics in the First Quarter of the 21st Century
by
Elzbieta Wolny, Luis A. J. Mur, Nobuko Ohmido, Zujun Yin, Kai Wang and Robert Hasterok
Int. J. Mol. Sci. 2025, 26(14), 7013; https://doi.org/10.3390/ijms26147013 - 21 Jul 2025
Abstract
Nearly four decades have passed since fluorescence in situ hybridisation was first applied in plants to support molecular cytogenetic analyses across a wide range of species. Subsequent advances in DNA sequencing, bioinformatic analysis, and microscopy, together with the immunolocalisation of various nuclear components,
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Nearly four decades have passed since fluorescence in situ hybridisation was first applied in plants to support molecular cytogenetic analyses across a wide range of species. Subsequent advances in DNA sequencing, bioinformatic analysis, and microscopy, together with the immunolocalisation of various nuclear components, have provided unprecedented insights into the cytomolecular organisation of the nuclear genome in both model and non-model plants, with crop species being perhaps the most significant. The ready availability of sequenced genomes is now facilitating the application of state-of-the-art cytomolecular techniques across diverse plant species. However, these same advances in genomics also pose a challenge to the future of plant molecular cytogenetics, as DNA sequence analysis is increasingly perceived as offering comparable insights into genome organisation. This perception persists despite the continued relevance of FISH-based approaches for the physical anchoring of genome assemblies to chromosomes. Furthermore, cytogenetic approaches cannot currently rival purely genomic methods in terms of throughput, standardisation, and automation. This review highlights the latest key topics in plant cytomolecular research, with particular emphasis on chromosome identification and karyotype evolution, chromatin and interphase nuclear organisation, chromosome structure, hybridisation and polyploidy, and cytogenetics-assisted crop improvement. In doing so, it underscores the distinctive contributions that cytogenetic techniques continue to offer in genomic research. Additionally, we critically assess future directions and emerging opportunities in the field, including those related to CRISPR/Cas-based live-cell imaging and chromosome engineering, as well as AI-assisted image analysis and karyotyping.
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(This article belongs to the Collection Feature Papers in Molecular Plant Sciences)
Open AccessArticle
Multivalent Immune-Protective Effects of Egg Yolk Immunoglobulin Y (IgY) Derived from Live or Inactivated Shewanella xiamenensis Against Major Aquaculture Pathogens
by
Jing Chen, Pan Cui, Huihui Xiao, Xiaohui Han, Ziye Ma, Xiaoqing Wu, Juan Lu, Guoping Zhu, Yong Liu and Xiang Liu
Int. J. Mol. Sci. 2025, 26(14), 7012; https://doi.org/10.3390/ijms26147012 - 21 Jul 2025
Abstract
Egg yolk immunoglobulin Y (IgY) possesses advantages such as low cost, easy availability, simple preparation, high antigen specificity, absence of drug residues, and compliance with animal welfare standards, making it an environmentally friendly and safe alternative to antibiotics. This research utilizes IgY antibody
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Egg yolk immunoglobulin Y (IgY) possesses advantages such as low cost, easy availability, simple preparation, high antigen specificity, absence of drug residues, and compliance with animal welfare standards, making it an environmentally friendly and safe alternative to antibiotics. This research utilizes IgY antibody technology to develop a multivalent passive immune vaccine for major pathogenic bacteria in aquaculture. In this study, IgY antibodies against live Shewanella xiamenensis (LSX-IgY) and inactivated S. xiamenensis (ISX-IgY) were prepared by immunizing laying hens, and passive immunization protection experiments were conducted in Carassius auratus infected with S. xiamenensis and Aeromonas hydrophila. The passive immunization protection rates of LSX-IgY and ISX-IgY against S. xiamenensis were 63.64% and 72.73%, respectively, and the passive cross-protection rates against A. hydrophila were 50% and 71.43%, respectively. Further, C. auratus sera could specifically bind to S. xiamenensis or A. hydrophila in vitro, and the phagocytic activity of leukocytes was increased. LSX-IgY and ISX-IgY could reduce the bacterial load in the C. auratus kidneys. Meanwhile, they could significantly reduce the levels of antioxidant factors in serum and inhibit the mRNA expression of inflammation-related factors in the kidneys and spleens. Additionally, histopathology and immunofluorescence analysis showed that both IgY preparations preserved tissue integrity and reduced the expression of apoptosis factor (p53) and DNA damage factor (γH2A.X) of visceral organs, respectively. In summary, LSX-IgY and ISX-IgY can combat various bacterial infections, with no significant difference between the two. Additionally, inactivated bacterial immunization is more aligned with animal welfare standards for laying hens. Therefore, ISX-IgY is expected to serve as a multivalent vaccine against major aquaculture pathogens.
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(This article belongs to the Section Molecular Microbiology)
Open AccessArticle
Solvent Fractionation of Polygonum cuspidatum Sieb. et Zucc. for Antioxidant, Biological Activity, and Chromatographic Characterization
by
Yuchen Cheng, Yuri Kang and Woonjung Kim
Int. J. Mol. Sci. 2025, 26(14), 7011; https://doi.org/10.3390/ijms26147011 - 21 Jul 2025
Abstract
This study investigated the natural bioactive compounds in Polygonum cuspidatum Sieb. et Zucc. (P. cuspidatum) by fractionating a 70% ethanol extract using n-hexane, chloroform, ethyl acetate, n-butanol, and water. The total polyphenol and flavonoid contents of each fraction were
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This study investigated the natural bioactive compounds in Polygonum cuspidatum Sieb. et Zucc. (P. cuspidatum) by fractionating a 70% ethanol extract using n-hexane, chloroform, ethyl acetate, n-butanol, and water. The total polyphenol and flavonoid contents of each fraction were determined, and their antioxidant activities were evaluated using DPPH, ABTS, and FRAP assays. Additionally, the anti-diabetic potential was assessed via α-glucosidase inhibitory activity, while anti-obesity activity was evaluated using lipase inhibitory activity. The fractions were also tested for tyrosinase and elastase inhibitory activities to assess their skin-whitening and anti-wrinkle potential, and their antibacterial activity against Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa was determined using the agar diffusion method. Finally, bioactive compounds were identified and quantified using HPLC and GC–MSD. The results showed that the ethyl acetate fraction possessed the highest total polyphenol content (0.53 ± 0.01 g GAE/g) and total flavonoid content (0.19 ± 0.02 g QE/g). It also exhibited strong antioxidant activity, with the lowest DPPH radical scavenging IC50 (0.01 ± 0.00 mg/mL), ABTS radical scavenging IC50 (0.06 ± 0.00 mg/mL), and the highest FRAP value (6.02 ± 0.30 mM Fe2+/mg). Moreover, it demonstrated potent enzyme inhibitory activities, including tyrosinase inhibitory activity (67.78 ± 2.50%), elastase inhibitory activity (83.84 ± 1.64%), α-glucosidase inhibitory activity (65.14 ± 10.29%), and lipase inhibitory activity (85.79 ± 1.04%). In the antibacterial activity, the ethyl acetate fraction produced a clear inhibitory zone of 19.50 mm against Staphylococcus aureus, indicating notable antibacterial activity. HPLC-PDA and GC–MSD analyses identified tannic acid and emodin as the major bioactive constituents. These findings suggest that the ethyl acetate fraction of P. cuspidatum extract, rich in polyphenol and flavonoid compounds, is a promising natural source of bioactive ingredients for applications in the food, pharmaceutical, and cosmetic industries. Further research is needed to explore its mechanisms and therapeutic applications.
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(This article belongs to the Special Issue Cytotoxicity, Antioxidant and Anticancer Activity of Natural Products, 2nd Edition)
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Open AccessArticle
Selective MicroRNA Packaging Reveals Distinct Core Signatures in Human Mesenchymal-Stromal-Cell-Derived Extracellular Vesicles
by
Rachel E. Crossland, Clara Sanjurjo-Rodríguez, Monica Reis, Anne M. Dickinson, Elena Jones and Xiao-Nong Wang
Int. J. Mol. Sci. 2025, 26(14), 7010; https://doi.org/10.3390/ijms26147010 - 21 Jul 2025
Abstract
Mesenchymal stromal cells (MSCs) have demonstrated therapeutic efficacy across numerous clinical applications, with evidence suggesting their paracrine effects, particularly through extracellular vesicles (EVs), possibly driving functional outcomes. In this study we perform the comprehensive characterization of microRNA expression profiles in human MSC-derived EVs
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Mesenchymal stromal cells (MSCs) have demonstrated therapeutic efficacy across numerous clinical applications, with evidence suggesting their paracrine effects, particularly through extracellular vesicles (EVs), possibly driving functional outcomes. In this study we perform the comprehensive characterization of microRNA expression profiles in human MSC-derived EVs (MSC-EV) compared to their parental cells, cultured under clinically relevant xeno-free conditions. MSCs were isolated from the bone marrows of healthy donors and characterised according to the International Society for Cellular Therapy criteria, while MSC-EVs were isolated using differential ultracentrifugation and validated according to the International Society for Extracellular Vesicle guidelines. NanoString profiling identified 590 mature microRNAs expressed across both populations, with 42 being significantly differentially expressed between MSC-EVs and parental MSCs. Five microRNAs were distinctly highly expressed in MSCs and five in MSC-EVs, while fifteen of the top twenty most abundant microRNAs showed high expression in both populations. MicroRNA expression patterns were validated in an independent cohort. Functional pathway analysis of differentially expressed microRNAs showed enrichment of key biological processes including cell proliferation, differentiation, and immune regulation. This standardised profiling approach develops our understanding of MSC/MSC-EV microRNA cargo, using a transparent methodological approach that allows for the improved comparability of datasets for the development and advancement of MSC-EV therapeutics.
Full article
(This article belongs to the Special Issue MicroRNA Regulation in Human Health and Diseases)
Open AccessArticle
A Framework Integrating GWAS and Genomic Selection to Enhance Prediction Accuracy of Economical Traits in Common Carp
by
Zhipeng Sun, Yuhan Fu, Xiaoyue Zhu, Ruixin Zhang, Yongjun Shu, Xianhu Zheng and Guo Hu
Int. J. Mol. Sci. 2025, 26(14), 7009; https://doi.org/10.3390/ijms26147009 - 21 Jul 2025
Abstract
Common carp (Cyprinus carpio) is one of the most significant fish species worldwide, with its natural distribution spanning Europe and Asia. To conduct a genome-wide association study (GWAS) and compare the prediction accuracy of genomic selection (GS) models for the growth
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Common carp (Cyprinus carpio) is one of the most significant fish species worldwide, with its natural distribution spanning Europe and Asia. To conduct a genome-wide association study (GWAS) and compare the prediction accuracy of genomic selection (GS) models for the growth traits of common carp in spring and autumn at 2 years of age, a total of 325 carp individuals were re-sequenced and phenotypic measurements were taken. Three GWAS methods (FarmCPU, GEMMA, and GLM) were applied and their performance was evaluated in conjunction with various GS models, using significance levels based on p-values. GWAS analyses were performed on eight traits (including the body length, body weight, fat content of fillet, and condition factor) for both spring and autumn seasons. Eleven different GS models (such as Bayes A, Bayes B, and SVR-linear) were combined to evaluate their performance in genomic selection. The results demonstrate that the FarmCPU method consistently exhibits superior stability and predictive accuracy across most traits, particularly under higher SNP densities (e.g., 5K), where prediction accuracies frequently exceed 0.8. Notably, when integrated with Bayesian approaches, FarmCPU achieves a substantial performance boost, with the prediction accuracy reaching as high as 0.95 for the autumn body weight, highlighting its potential for high-resolution genomic prediction. In contrast, GEMMA and GLM exhibited a more variable performance at lower SNP densities. Overall, the integration of FarmCPU with genomic selection (GS) models offers one of the most reliable and efficient frameworks for trait prediction, particularly for complex traits with substantial genetic variation. This approach proves especially powerful when coupled with Bayesian methodologies, further enhancing its applicability in advanced breeding programs.
Full article
(This article belongs to the Special Issue Molecular Biology and the Genetic Breeding of Aquatic Animals: Breakthroughs and Challenges)
Open AccessReview
Unraveling the Complexity of Plant Trichomes: Models, Mechanisms, and Bioengineering Strategies
by
Tiantian Chen, Yanfei Ma and Jiyan Qi
Int. J. Mol. Sci. 2025, 26(14), 7008; https://doi.org/10.3390/ijms26147008 - 21 Jul 2025
Abstract
Trichomes—microscopic appendages on the plant epidermis—play vital roles as both protective barriers and specialized biosynthetic factories. Acting as the first line of defense against environmental stressors, they also produce a wide range of pharmaceutically valuable secondary metabolites. This mini-review highlights recent advances in
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Trichomes—microscopic appendages on the plant epidermis—play vital roles as both protective barriers and specialized biosynthetic factories. Acting as the first line of defense against environmental stressors, they also produce a wide range of pharmaceutically valuable secondary metabolites. This mini-review highlights recent advances in understanding the development, structure, and function of trichomes, with a focus on glandular secretory trichomes (GSTs) in key species such as Artemisia annua and Solanum lycopersicum. We explore how insights from these systems are driving innovation in plant synthetic biology, including modular genetic engineering and metabolic channeling strategies. These breakthroughs are paving the way for scalable, plant-based platforms to produce high-value compounds. By integrating molecular mechanisms with emerging technologies, this review outlines a forward-looking framework for leveraging trichomes in sustainable agriculture, natural product discovery, and next-generation biomanufacturing.
Full article
(This article belongs to the Special Issue Transcription Factors in Plant Gene Expression Regulation, 2nd Edition)
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