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19 pages, 899 KB  
Article
Physicochemical Properties, Colloidal Stability, and Encapsulation Efficiency of Lecithin-Based and Chitosan-Coated Liposomes Loaded with Cinnamomum zeylanicum Bioactives
by Sheba M. Culas, Lovedeep Kaur, David G. Popovich and Ali Rashidinejad
Appl. Sci. 2026, 16(8), 3754; https://doi.org/10.3390/app16083754 (registering DOI) - 11 Apr 2026
Abstract
Cinnamomum zeylanicum (C. zeylanicum) is rich in bioactives, such as cinnamaldehyde and phenols, which are susceptible to thermal degradation, volatilisation, and oxidative deterioration during processing and storage, thereby reducing chemical stability and limiting bioavailability. Encapsulation using lecithin and chitosan-based systems mitigates [...] Read more.
Cinnamomum zeylanicum (C. zeylanicum) is rich in bioactives, such as cinnamaldehyde and phenols, which are susceptible to thermal degradation, volatilisation, and oxidative deterioration during processing and storage, thereby reducing chemical stability and limiting bioavailability. Encapsulation using lecithin and chitosan-based systems mitigates these instabilities by forming a protective barrier against oxygen, light, and heat while enhancing structural stability. In this study, freeze-dried extracts of C. zeylanicum were encapsulated into lecithin-based primary liposomes (PL) and chitosan-coated secondary liposomes (CH/L). The coating of liposomes with chitosan improves the liposome stability, mucoadhesion, and provides protection in the gastric pH while facilitating electrostatic bonding with the biological membrane. The high compatibility and low toxicity of chitosan also make it a suitable carrier in food and nutraceutical applications. The formed liposomes were characterised for particle size, polydispersity index, zeta potential, encapsulation efficiency (EE), and storage stability over 8 weeks. CH/L showed superior EE (89.027%) compared to the PL (84.154%; p < 0.05). The particle size, polydispersity index, and zeta potential of the cinnamon-loaded lecithin-based primary liposome (CZ-PL) upon formation were 161.93 nm, 0.13, and −37.597 mV. In comparison, those of the cinnamon-loaded chitosan-coated liposomes (CZ-CH/L) were 591.7 nm, 0.27, and +28.17 mV. The particle size of CZ-PL and CZ-CH/L was 175.90 and 588.60 nm after 8 weeks of storage. The TEM confirmed the spherical morphology of the liposomes. The differential scanning calorimetry analysis demonstrated the disappearance of the characteristic cinnamon melting peak and shifts in liposomal transition temperatures, confirming successful encapsulation. FTIR analysis showed reduction or disappearance of characteristic cinnamon fingerprint peaks and slight band shifts, indicating successful encapsulation and non-covalent interactions, including hydrogen bonding and electrostatic effects, within the liposomal systems. These findings imply that lecithin-based and chitosan-coated liposomes could be employed to successfully carry C. zeylanicum bioactives. Full article
(This article belongs to the Special Issue Hydrocolloids: Characteristics and Applications)
22 pages, 1691 KB  
Article
Synergistic Adulticidal Activity of Lemongrass (Cymbopogon citratus), Star Anise (Illicium verum), Nutmeg (Myristica fragrans) Essential Oil and Their Components Against the Housefly (Musca domestica) and Their Safety for Key Non-Target Organisms
by Hataichanok Passara, Chamroon Laosinwattana, Tanapoom Moungthipmalai, Kouhei Murata and Mayura Soonwera
Insects 2026, 17(4), 412; https://doi.org/10.3390/insects17040412 - 10 Apr 2026
Viewed by 25
Abstract
Botanical insecticides containing a mixture of plant essential oils (EOs) are considered suitable for the management of houseflies (M. domestica). The adulticidal efficacies of single EOs and mixtures of EOs, including lemongrass (C. citratus), star anise (I. verum [...] Read more.
Botanical insecticides containing a mixture of plant essential oils (EOs) are considered suitable for the management of houseflies (M. domestica). The adulticidal efficacies of single EOs and mixtures of EOs, including lemongrass (C. citratus), star anise (I. verum), nutmeg (M. fragrans), and their components (geranial, trans-anethole, and α-pinene), against houseflies were determined in comparison to 2% (w/v) α-cypermethrin as the positive control and distilled water as the negative control. The mixture of star anise EO (1%) + geranial (1%) was the most effective adulticide, superseding single EOs, other combinations of EOs, and its active component, α-cypermethrin, and distilled water. This mixture was highly synergistic and was found to be over 74% more toxic than all single EOs and almost 2.6 times more toxic than α-cypermethrin. Furthermore, the tested EOs did not cause mortality in guppies (P. reticulata) or earthworms (E. fetida), and caused a maximum of 48% mortality in honeybees (A. mellifera) at 24 h; by contrast, α-cypermethrin led to 100% mortality in honeybees within 0.5 h and in guppies and earthworms within 24 h, although it had low toxicity toward houseflies. Thus, a mixture of star anise EO + geranial is a promising source of EO-derived insecticides for housefly control that is also safe for important non-target species. Full article
(This article belongs to the Special Issue Plant Essential Oils for the Control of Insects and Mites)
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17 pages, 563 KB  
Article
Impact of PD-L1 Status on the Development of Cutaneous Immune-Related Adverse Events in Non-Small-Cell Lung Cancer Patients Receiving Immunotherapy
by Alexander Yakobson, Fahed Abu Salamah, Ibrahim Alatawneh, Ahron Yehonatan Cohen, Yuliya Valdman-Grinshpoun, Yotam Malek, Itamar Gothelf, Ashraf Abu Jama, Nashat Abu Yasin, Mhammad Abu Juda, Arina Soklakova, Amichay Meirovitz and Walid Shalata
Life 2026, 16(4), 636; https://doi.org/10.3390/life16040636 - 9 Apr 2026
Viewed by 95
Abstract
Background: Cutaneous adverse events (cAEs) are among the most frequent immune-related toxicities associated with immune checkpoint inhibitors (ICIs). Previous clinical trials have reported higher rates of dermatologic toxicity with anti-CTLA-4 agents compared to Programmed Cell Death (PD-1)/ Programmed Cell Death-1 Ligand (PD-L1) inhibitors. [...] Read more.
Background: Cutaneous adverse events (cAEs) are among the most frequent immune-related toxicities associated with immune checkpoint inhibitors (ICIs). Previous clinical trials have reported higher rates of dermatologic toxicity with anti-CTLA-4 agents compared to Programmed Cell Death (PD-1)/ Programmed Cell Death-1 Ligand (PD-L1) inhibitors. However, real-world data may differ due to evolving clinical experience and improved AE management strategies. Methods: We conducted a retrospective analysis of patients treated with ICIs to assess the incidence and severity of cAEs —specifically rash and pruritus—across different treatment regimens and PD-L1 expression subgroups, 285 patients treated with ICIs at Soroka Medical center during the years August 2018–November 2025. Results: Regarding dermatologic toxicity, 57 out of 285 patients (20%) experienced a rash. Among them, 46 patients (16% of total; 81% of those with rash) had grade 1, 7 patients (2% of total; 12% of those with rash) had grade 2, and 4 patients (1% of total; 7% of those with rash) had grade 3 reactions. No grade 4 or life-threatening cases were observed. Additionally, 47 patients (16.5%) developed pruritus, all grade 1–2. When stratified by treatment type, PD-L1 expression and the occurrence of immune-related adverse events, specifically rash and pruritus, were significantly associated with survival outcomes (p < 0.001). Patients with expressions of PD-L1 ≥1% had longer median overall survival (34.0 months) compared to those with expressions of PD-L1 < 1% (20.0 months), and longer progression-free survival (22.0 vs. 13.0 months). When considering rash, overall survival ranged from 19.0 months (PD-L1 < 1% with rash) to 36.0 months (PD-L1 ≥1% without rash), and progression-free survival ranged from 12.0 to 27.0 months. The presence of pruritus was associated with the most favorable outcomes, with median overall survival reaching 48.0 months and progression-free survival 31.0 months in patients with PD-L1 ≥1% and pruritus. All comparisons showed statistically significant differences (p < 0.001). Conclusion: These findings highlight that higher PD-L1 expression and the presence of immune-related adverse events—particularly pruritus—may serve as important prognostic indicators and could help inform personalized treatment strategies. The incidence and severity of cAEs in our study were consistent with prior clinical trials. The low frequency of grade ≥ 3 events may reflect increased familiarity with ICIs, leading to earlier recognition of adverse events, better patient education, and more effective management of skin toxicities. Full article
18 pages, 2049 KB  
Article
In Silico ADMET Profiling and Drug-Likeness Evaluation of Novel Thiopyrano[2,3-d]thiazole Derivatives as Potential Anticonvulsants
by Maryna Stasevych, Mykhailo Hoidyk, Viktor Zvarych, Andriy Karkhut, Svyatoslav Polovkovych and Roman Lesyk
Sci. Pharm. 2026, 94(2), 30; https://doi.org/10.3390/scipharm94020030 - 9 Apr 2026
Viewed by 89
Abstract
The development of novel antiepileptic agents requires early identification of pharmacokinetic limitations to mitigate risks at later stages. This study aimed to perform in silico profiling of a library containing 448 novel 2H,5H-chromeno[4’,3’:4,5]thiopyrano[2,3-d]thiazol-2-one derivatives to select lead [...] Read more.
The development of novel antiepileptic agents requires early identification of pharmacokinetic limitations to mitigate risks at later stages. This study aimed to perform in silico profiling of a library containing 448 novel 2H,5H-chromeno[4’,3’:4,5]thiopyrano[2,3-d]thiazol-2-one derivatives to select lead compounds with an optimal balance of safety and efficacy. The study was conducted using the ADMET-AI platform, based on a graph neural network, to predict physicochemical, pharmacokinetic, and toxicological properties. The methodology involved calculating drug-likeness descriptors for primary screening and a comparative statistical analysis of the top 20 selected structures against 16 approved antiepileptic drugs and four reference compounds. Based on drug-likeness descriptors and predicted ADMET (absorption, distribution, metabolism, excretion, toxicity) related parameters, 20 structures were prioritized for further analysis. Their predicted profiles suggested high intestinal absorption and blood–brain barrier (BBB) permeability, which may be relevant for central nervous system (CNS) directed agents. In comparison with the reference thiazolidinones, the prioritized compounds showed comparatively more favorable predicted mutagenicity and carcinogenicity profiles. Elevated predicted risks of hepatotoxicity and cardiotoxicity were observed for several structures, indicating the need for further structural optimization. The results suggest that the thiopyranothiazolidinone scaffold merits further anticonvulsant-oriented investigation at the stage of early compound prioritization. Experimental validation will be required to confirm the actual pharmacokinetic, toxicological, and anticonvulsant properties of the prioritized compounds. Full article
17 pages, 4049 KB  
Article
Preparation of Activated Carbon Fiber-Based Filter Papers from Different Precursors and the Adsorption Performance for DMMP
by Yuan Fan, Jiayi Zhang, Zhaoqian Li, Lingyun Wang and Min Tang
Fibers 2026, 14(4), 43; https://doi.org/10.3390/fib14040043 - 7 Apr 2026
Viewed by 236
Abstract
Military confined spaces face poor ventilation and severe airborne hazards (toxic gases/particulates), while conventional air purification systems with separate filtration–adsorption units are bulky and hard to miniaturize. Activated carbon fiber paper (ACFP) is a promising integrated filtration–adsorption material, but existing studies lack systematic [...] Read more.
Military confined spaces face poor ventilation and severe airborne hazards (toxic gases/particulates), while conventional air purification systems with separate filtration–adsorption units are bulky and hard to miniaturize. Activated carbon fiber paper (ACFP) is a promising integrated filtration–adsorption material, but existing studies lack systematic comparisons of different ACF precursors and rational balancing of adsorption, filtration, and mechanical properties. Herein, ACFPs were fabricated via wet papermaking technology, using two ACFs (rayon-based, RACF, and phenolic-based, PACF) as the adsorptive component, glass wool as a filtration enhancer, and dual-melting-point polyethylene terephthalate (PET) fibers as a mechanical reinforcer. Dynamic adsorption was evaluated via DMMP (a Sarin simulant). Results showed that PACF had a micropore ratio twice that of RACF. Under the optimal formulation (20% glass wool, 30% PET, and 50% ACF), both types of ACFP showed FE0.3 μm ≥ 90%. PACFP outperformed RACFP in comprehensive performance, showing higher adsorption capacity, tensile strength, and filtration quality factor. Both ACFPs exhibited superior bed utilization efficiency (RACFP: 91.3%; PACFP: 86.0%) to granular activated carbon (AC: 82.7%), confirming better dynamic adsorption kinetics. This work provides a rational optimization strategy for ACFPs, offering a lightweight, integrated material for air purification in military confined spaces. Full article
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19 pages, 6065 KB  
Article
Transcriptomic Analysis of Fermented Chinese Chive Selectively Attenuating Deoxynivalenol-Induced Ovarian Toxicity in Mice
by Hong Zou, Chun-Yan Qin, Teerath Kumar Suthar, Yupeng Xie, Koroloso Phomane Abednicco, Chun-Feng Wang, Min Kyu Kim, Shu-Min Zhang and Wu-Sheng Sun
Antioxidants 2026, 15(4), 442; https://doi.org/10.3390/antiox15040442 - 1 Apr 2026
Viewed by 382
Abstract
Deoxynivalenol (DON) is a common mycotoxin linked to ovarian oxidative stress, toxicity, and reduced reproductive performance. Fermented Chinese chive is known for its antioxidant properties and potential reproductive benefits, but their individual and combined effects on ovarian function remain unclear in post-pubertal mice. [...] Read more.
Deoxynivalenol (DON) is a common mycotoxin linked to ovarian oxidative stress, toxicity, and reduced reproductive performance. Fermented Chinese chive is known for its antioxidant properties and potential reproductive benefits, but their individual and combined effects on ovarian function remain unclear in post-pubertal mice. In this study, a 21-day oral gavage model in female Kunming mice was used to evaluate the effects of DON (2 mg/kg/day), fermented Chinese chive extract (LEEK; 0.2 mL/day), and their combined exposure (LKDON) on ovarian physiology, oocyte quality, and ovarian transcriptomic responses. The results showed that DON exposure significantly reduced the zygote cleavage rate, increased intracellular reactive oxygen species levels, and disrupted oocyte mitochondrial membrane potential. While histological examination revealed disturbed follicular architecture. Transcriptomic hub gene analysis showed that DON exposure down-regulate the key associated with innate immune responses and motile cilia/axonemal structure, including Rsph4a, Drc1, Zmynd10, Hydin, and Tmem212. In contrast, LEEK alone was associated with immunomodulatory upregulated genes, including Il5, Cd27, and Crp. Interestingly, LKDON and DON comparison revealed upregulation of a motile cilia/axoneme gene network (Dnah5, Dnah11, Tekt1, Zmynd10, Cfap44, and Spag6l), rather than a global reversal of DON-induced changes. Overall, finding suggest that DON disrupts ovarian immune and structural pathways, while fermented Chinese chive provides partial protection by modulating specific biological processes. Further studies are needed to confirm the underlying mechanisms. Full article
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11 pages, 442 KB  
Article
Trends and Patterns of Animal Poisoning in Thailand: A 10-Year Retrospective Study from Ramathibodi Poison Center
by Phantakan Tansuwannarat, Satariya Trakulsrichai, Kitisak Sanprasert, Sekkarin Ploypetch, Nastayarin Ariyaviraplorn and Achara Tongpoo
Vet. Sci. 2026, 13(4), 325; https://doi.org/10.3390/vetsci13040325 - 27 Mar 2026
Viewed by 333
Abstract
Animal poisoning remains an underreported public health and veterinary concern in many low- and middle-income countries where comprehensive surveillance systems are limited. This study was initiated to describe the epidemiology, clinical characteristics, and outcomes of animal poisoning cases reported to a national poison [...] Read more.
Animal poisoning remains an underreported public health and veterinary concern in many low- and middle-income countries where comprehensive surveillance systems are limited. This study was initiated to describe the epidemiology, clinical characteristics, and outcomes of animal poisoning cases reported to a national poison center in Thailand over a 10-year period. We performed a retrospective review of cases recorded in the Ramathibodi Poison Center Toxic Exposure Surveillance System between 2015 and 2024. Descriptive statistics were used to summarize species distribution, exposure categories, clinical signs, treatment, and outcomes, and comparisons were conducted to identify factors associated with mortality. A total of 118 poisoning cases were identified, with annual numbers increasing over time. Companion animals accounted for most exposures (93.2%), particularly dogs. Pesticides were the most common toxic agents, followed by household products, pharmaceuticals, and plant toxins. Neurological signs were the predominant clinical presentation. Respiratory compromise and neurological involvement at presentation were significantly associated with mortality. Overall survival was 88.1%. Fatalities were mainly linked to exposure to highly toxic pesticides or plants, including confirmed cassava-associated cyanide poisoning in elephants. This study highlights preventable environmental toxic risks affecting animals in Thailand and demonstrates the value of centralized poison surveillance. Strengthening pesticide safety practices and integrating veterinary toxicology into broader public health monitoring may reduce avoidable poisonings within shared human–animal environments. Full article
(This article belongs to the Section Veterinary Physiology, Pharmacology, and Toxicology)
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18 pages, 2060 KB  
Article
BPA Disrupts Hepatic Lipid and Carbohydrate Metabolism in Female Zebrafish: Protective Effects of Probiotics Revealed by FTIRI and Lipidomics
by Christian Giommi, Chiara Santoni, Fabrizia Carli, Amalia Gastaldelli, Francesca Maradonna, Hamid R. Habibi, Elisabetta Giorgini and Oliana Carnevali
Int. J. Mol. Sci. 2026, 27(7), 2978; https://doi.org/10.3390/ijms27072978 - 25 Mar 2026
Viewed by 241
Abstract
Bisphenol A (BPA) is a widespread endocrine disruptor that interferes with metabolism in humans and animals by inducing oxidative stress, lipid peroxidation, and cell death. Probiotics, conversely, have shown potential in promoting host health and reducing the toxicity of endocrine-disrupting chemicals (EDCs). This [...] Read more.
Bisphenol A (BPA) is a widespread endocrine disruptor that interferes with metabolism in humans and animals by inducing oxidative stress, lipid peroxidation, and cell death. Probiotics, conversely, have shown potential in promoting host health and reducing the toxicity of endocrine-disrupting chemicals (EDCs). This study examined whether sub-chronic BPA exposure disrupts hepatic lipid metabolism in female zebrafish (Danio rerio), and whether co-administration of probiotics mitigates these effects. Adult females were exposed for 28 days to the following treatments: 10 µg/L BPA via water (BPA); 109 CFU/g body weight/day of probiotic formulation (P); and both treatments (BPA+P). An untreated group served as a control (CTRL). Hepatic lipid composition was analyzed using UHPLC-QTOF-MS, while liver sections were investigated by Fourier Transform Infrared Imaging (FTIRI) spectroscopy. BPA exposure decreased 14 unsaturated triacylglycerols and lysophosphatidylcholine 18:0, suggesting steatosis onset and inflammation, while in the group exposed to BPA+P, the decrease was limited to 8 triacylglycerols and the reduction in lysophosphatidylcholine 18:0 was prevented. Analyses of pooled liver samples precluded modeling tank-level effects; thus, the results are interpreted as semi-quantitative. Partial least square discriminant analysis built on the comparison of all groups together confirmed an intermediate phenotype for BPA+P fish between BPA and P groups. The observed beneficial role of probiotics in counteracting BPA-related metabolic disturbances was also supported by FTIRI, evidencing the ability to mitigate the effects of BPA on lipid and glycosylated compound metabolism. These findings highlight the potential of probiotic supplementation as a practical and accessible strategy to mitigate BPA-induced metabolic disturbances, contributing to the development of mitigating approaches against environmental contaminant-related liver dysfunction. Full article
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20 pages, 2327 KB  
Review
Toward Comprehensive In Vitro Evaluation of Serum Albumin Binding of Per- and Polyfluoroalkyl Substances
by Hannah M. Starnes and Scott M. Belcher
J. Xenobiot. 2026, 16(2), 54; https://doi.org/10.3390/jox16020054 - 20 Mar 2026
Viewed by 409
Abstract
Per- and polyfluoroalkyl substances (PFAS) constitute a large and chemically diverse class of synthetic compounds characterized by one or more fully fluorinated methyl or methylene groups. Many PFAS are toxic, environmentally persistent, bioaccumulative, and highly mobile, resulting in widespread contamination and biological exposure. [...] Read more.
Per- and polyfluoroalkyl substances (PFAS) constitute a large and chemically diverse class of synthetic compounds characterized by one or more fully fluorinated methyl or methylene groups. Many PFAS are toxic, environmentally persistent, bioaccumulative, and highly mobile, resulting in widespread contamination and biological exposure. Across taxa PFAS exhibit affinity for proteins and preferentially accumulate in protein-rich, highly perfused tissues. Protein binding critically influences PFAS distribution, bioaccumulation, toxicity, and elimination. A variety of different approaches for determining binding affinity have existed for decades; however, depending on experimental conditions, calculated affinities can vary over multiple orders of magnitude which limits comparison of protein–PFAS binding affinities across studies and across PFAS chemical space. Addressing this limitation requires robust and standardized experimental platforms capable of rapidly generating quantitative binding data. Among the most important targets is serum albumin—the principal transport protein in vertebrate blood—which plays a central role in governing PFAS toxicokinetics. This review summarizes current methodologies for measuring protein–PFAS binding affinities, evaluates the strengths and limitations of each approach, synthesizes the existing literature on serum albumin–PFAS interactions, and highlights differential scanning fluorimetry as a rapid, reproducible, and sensitive technique for in vitro assessment of relative protein–PFAS binding. Full article
(This article belongs to the Section Emerging Chemicals)
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20 pages, 3020 KB  
Article
Dual Fluorescence–Lipid Endpoints Resolve Species- and Metal-Specific Toxicity Patterns in Marine Diatoms
by Hojun Lee, Taejun Han and Jihae Park
Toxics 2026, 14(3), 267; https://doi.org/10.3390/toxics14030267 - 18 Mar 2026
Viewed by 650
Abstract
Trace metals are persistent stressors in coastal ecosystems, yet most marine algal toxicity assessments still rely on freshwater model species and growth-based endpoints that provide limited mechanistic resolution. Here, we quantified the sensitivity of two ecologically contrasting marine diatoms—the benthic Cylindrotheca closterium and [...] Read more.
Trace metals are persistent stressors in coastal ecosystems, yet most marine algal toxicity assessments still rely on freshwater model species and growth-based endpoints that provide limited mechanistic resolution. Here, we quantified the sensitivity of two ecologically contrasting marine diatoms—the benthic Cylindrotheca closterium and the planktonic Thalassiosira weissflogii—to ten environmentally relevant metals using a dual-endpoint approach that integrates chlorophyll fluorescence (photosystem function) and Nile Red-based lipid-body fluorescence (metabolic reallocation). Fluorescence-based EC10 values revealed distinct species- and metal-specific patterns, with C. closterium consistently responding at lower concentrations and Hg producing the strongest inhibition in both species (EC10 ≈ 0.04–0.06 mg L−1). Lipid-body accumulation detected earlier metabolic disturbance for several metals, particularly Hg, As, Cr(VI), and Cd, and frequently occurred at concentrations where fluorescence remained minimally affected. These sequential thresholds indicate that pigment impairment and metabolic reallocation represent mechanistically distinct stages of the cellular stress response that differ among metals and between diatom guilds. Comparison with published toxicity data shows that the dual-endpoint sensitivities observed here fall within, or slightly above, the upper range of reported microalgal responses, underscoring the pronounced susceptibility of benthic diatoms to redox-active and thiol-reactive metals. The strong agreement between fluorescence-based EC values and traditional growth-derived benchmarks for key metals further supports fluorescence as an operationally efficient endpoint suitable for integration into emerging ISO marine algal bioassays. Overall, this study demonstrates that pairing a rapid functional marker with a mechanistically informative metabolic biomarker enables metal-specific toxicity fingerprinting and provides an ecologically grounded basis for incorporating benthic diatoms into coastal metal risk assessment frameworks. Full article
(This article belongs to the Section Ecotoxicology)
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21 pages, 2837 KB  
Article
Comparative Proteomic Profiling of Responses to Standard Systemic Treatment Regimens in Pancreatic Cancer
by Amirsalar Mansouri, Olivia Hart, Sina Aslanabadi, Conner Hartupee, Dicle Yalcin, Garima Sinha, Chiswili Yves Chabu, Aleksandra Cios, Zetao Cheng, Sudhakar Ammanamanchi, Jovanny Zabaleta, John H. Stewart, John T. West, Mitesh J. Borad, Bolni Marius Nagalo, Jiri Adamec and Omeed Moaven
Cells 2026, 15(6), 531; https://doi.org/10.3390/cells15060531 - 17 Mar 2026
Viewed by 484
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is an aggressive malignancy with a 5-year survival rate of 13.3%. First-line treatment relies on two chemotherapy regimens, FOLFIRINOX (FOLFNX) or gemcitabine plus nab-paclitaxel (GEMPAC). However, direct clinical comparisons between these regimens have yielded inconsistent results across survival and [...] Read more.
Pancreatic ductal adenocarcinoma (PDAC) is an aggressive malignancy with a 5-year survival rate of 13.3%. First-line treatment relies on two chemotherapy regimens, FOLFIRINOX (FOLFNX) or gemcitabine plus nab-paclitaxel (GEMPAC). However, direct clinical comparisons between these regimens have yielded inconsistent results across survival and toxicity endpoints, and the molecular basis of heterogeneous treatment responses remains poorly defined. To investigate regimen-specific tumor-cell-intrinsic mechanisms, we performed quantitative proteomic profiling of a primary PDAC-derived MIA PaCa-2 cell line following treatment with FOLFNX or GEMPAC. Differentially expressed proteins were analyzed using Gene Ontology, KEGG, and Ingenuity Pathway Analysis to define pathway-level alterations, and findings were contextualized using TCGA transcriptomic data. Proteomic analyses revealed that FOLFNX and GEMPAC engage in distinct cytotoxic programs. FOLFNX predominantly suppressed ribosome biogenesis and mitochondrial translation, consistent with sustained metabolic and biosynthetic stress, whereas GEMPAC preferentially disrupted mitotic cytokinesis and phosphatidylinositol phosphate biosynthesis, consistent with mitotic failure. Integration with TCGA data showed that FOLFNX-altered proteins aligned with favorable prognostic expression signatures, whereas GEMPAC-associated proteins were enriched among adverse profiles, reflecting engagement of distinct tumor-intrinsic programs. Together, these findings provide mechanistic insight into differential chemotherapy responses and establish a foundation for proteomics-based biomarkers to guide personalized chemotherapy selection in PDAC. Full article
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29 pages, 1229 KB  
Review
Structural Modification of Selected Essential Oil Components for Potential Anticancer Applications: A Review
by Vuyolwethu Khwaza and Vuyani Maqanda
Pharmaceuticals 2026, 19(3), 427; https://doi.org/10.3390/ph19030427 - 5 Mar 2026
Viewed by 526
Abstract
Monoterpenes (thymol, carvacrol, menthol) and phenylpropanoids (eugenol and cinnamaldehyde) and their related derivatives are naturally occurring bioactive compounds found in essential oils (EOs) and have attracted considerable interest as anticancer agents; however, their direct therapeutic use in cancer treatment is often limited by [...] Read more.
Monoterpenes (thymol, carvacrol, menthol) and phenylpropanoids (eugenol and cinnamaldehyde) and their related derivatives are naturally occurring bioactive compounds found in essential oils (EOs) and have attracted considerable interest as anticancer agents; however, their direct therapeutic use in cancer treatment is often limited by factors such as low bioavailability, moderate potency, and lack of target specificity. Recent studies have demonstrated that rational structural modification of these EO scaffolds can substantially enhance their anticancer potential. This review critically evaluates the different structural modification strategies applied to EO components, including pharmacophore hybridization, heterocycle incorporation (e.g., triazoles, oxadiazoles, chalcones), esterification, halogenation, metal complexation, and nanoparticle conjugation. The review compares these approaches across the selected EO components, highlighting their impact on anticancer potency, and mechanistic relevance. However, the current evidence base is heterogeneous, with considerable variability in experimental conditions, selectivity assessments, and reliance on in vitro or in silico findings, which limits direct cross-study comparisons and translational interpretation. Overall, structural modification of EO components represents a promising strategy for generating novel anticancer lead compounds, but future progress will depend on standardized biological evaluation, rigorous in vivo validation, and comprehensive pharmacokinetic and toxicity profiling to realistically define their clinical potential. Full article
(This article belongs to the Special Issue Natural Products for Therapeutic Potential)
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32 pages, 6515 KB  
Article
Metabolomic Study of 7-Ethyl-9-(N-methyl)aminomethyl-10-hydroxycamptothecin Derivative (NMe)—The Chemotherapeutic Drug Candidate Versus Irinotecan (IR) on a Mouse Model
by Piotr Surynt, Beata Naumczuk, Magdalena Popławska, Magdalena Urbanowicz, Katarzyna Unrug-Bielawska, Magdalena Cybulska-Lubak, Zuzanna Sadowska-Markiewicz, Jerzy Sitkowski, Elżbieta Bednarek, Natalia Zeber-Lubecka, Lech Kozerski, Michał Mikula and Jerzy Ostrowski
Metabolites 2026, 16(3), 172; https://doi.org/10.3390/metabo16030172 - 5 Mar 2026
Viewed by 699
Abstract
Background: In this study, we aimed to compare metabolomic profiles, biodistribution, and detoxification patterns of the novel SN-38 derivative NMe with irinotecan (IR), and to identify NMe-specific metabolites to evaluate its preclinical pharmacokinetic advantages. Methods: In vivo ADME studies were conducted for NMe, [...] Read more.
Background: In this study, we aimed to compare metabolomic profiles, biodistribution, and detoxification patterns of the novel SN-38 derivative NMe with irinotecan (IR), and to identify NMe-specific metabolites to evaluate its preclinical pharmacokinetic advantages. Methods: In vivo ADME studies were conducted for NMe, a 9-aminomethyl SN-38 derivative, and IR following a single intraperitoneal dose of 40 mg/kg in mice. Additionally, ADMET properties were predicted using ADMETlab and SwissADME tools for comparison. Levels of NMe and irinotecan absorbed into plasma, distributed to tissues, and metabolized were monitored in liver, lung, spleen, kidney, and stool samples at 15, 30, and 60 min post-administration. Tissue extracts were analysed using high-performance liquid chromatography (HPLC), liquid chromatography–electrospray ionization quadrupole time-of-flight-tandem mass spectrometry (LC-ESI-QTOF-MS), and nuclear magnetic resonance (NMR) techniques after lyophilization and reconstitution. We compared the metabolomic profiles of irinotecan and NMe. Results: We identified and confirmed NMe-specific metabolites, including 9-CH2-S-cysteine conjugate, 9-CH2OH, and NMe-formyl. Notably, novel irinotecan metabolites (IR-OH and IR-ΔE) were detected in small amounts in kidney samples. In some cases, two literature-known photodegradation products of irinotecan were present. NMe was found to quickly metabolize with different distribution to tissues, significantly greater to kidney and liver. Two SN-38 glucuronides, SN-38G(α) and SN-38G(β), were detected corresponding to α- and β-anomers. Where it was possible, NMe, IR and SN-38 were quantified using external calibration curves. In IR group, controlled and prolonged release of SN-38 was confirmed in all samples, yet SN-38G was observed in minority only in plasma, kidney, or lungs. In NMe groups, great relative amounts of SN-38 and SN-38G were detected. Greater content of SN-38G in NMe group than in irinotecan is expected to contribute to modulation and alleviation of some side effects in irinotecan-involved therapies, such as gastrointestinal toxicities (GIT). Conclusions: NMe shows a distinct metabolic profile characterized by rapid biotransformation, higher systemic glucuronidation of SN-38, and formation of unique metabolites, suggesting a potentially wider therapeutic window and reduced toxicity compared with IR. Full article
(This article belongs to the Section Pharmacology and Drug Metabolism)
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14 pages, 4818 KB  
Article
In Vitro Safety Profiling and Leukoderma-Relevant Hazard Assessment of Raspberry Ketone Versus Polygonum cillinerve Total Anthraquinones in a Keratinocyte–Melanocyte Co-Culture Model
by Manyi Hou, Xiaoyu Yang, Xin Nong, Congfen He, Yan Liang and Lei Liu
Molecules 2026, 31(5), 822; https://doi.org/10.3390/molecules31050822 - 28 Feb 2026
Viewed by 339
Abstract
Safety concerns surrounding skin-lightening agents have intensified following chemical leukoderma linked to rhododendrol. Here, we performed an in vitro safety and hazard profiling comparison of raspberry ketone (RK) and a total anthraquinone fraction from Fallopia multiflora var. cillinerve (Polygonum cillinerve) using [...] Read more.
Safety concerns surrounding skin-lightening agents have intensified following chemical leukoderma linked to rhododendrol. Here, we performed an in vitro safety and hazard profiling comparison of raspberry ketone (RK) and a total anthraquinone fraction from Fallopia multiflora var. cillinerve (Polygonum cillinerve) using an immortalized keratinocyte–melanocyte co-culture model (human HaCaT keratinocytes and murine B10.BR melanocytes, 3:1). Rhododendrol and arbutin were included as contextual references. Following viability-guided range finding, cells were exposed for 48 h and evaluated for melanocyte stress and injury, including ROS generation, UPR/ER-stress activation (PERK/eIF2α–ATF4-associated readouts: ATF4, Hmox1, GADD45a; and IRE1 phosphorylation), IL-8-related chemokine output (CXCL1/KC, a murine functional homolog of IL-8), cell-cycle perturbation, and Caspase-3-associated apoptosis. In parallel, targeted LC–MS metabolomics was performed to resolve pathway-level perturbations. High-dose RK elicited a rhododendrol-like in vitro stress/toxicity signature, characterized by elevated ROS, robust UPR engagement, inflammatory chemokine induction, cell-cycle dysregulation, and pro-apoptotic responses; under viability-adjusted conditions, these effects remained more evident than with arbutin. Metabolomics revealed convergent disturbances between RK and rhododendrol, highlighting purine metabolism as a prominent perturbed pathway and suggesting purine-related metabolites as candidate indicators associated with leukoderma-relevant cellular stress in vitro. In contrast, the anthraquinone fraction did not trigger oxidative or ER stress within the tested range and exhibited a more favorable in vitro safety profile, including reduced ROS. Full article
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31 pages, 5995 KB  
Article
First Predictive Mapping of Persistent Organic Pollutants in Mosses Across Germany, 2020
by Stefan Nickel, Winfried Schröder and Annekatrin Dreyer
Atmosphere 2026, 17(3), 263; https://doi.org/10.3390/atmos17030263 - 28 Feb 2026
Viewed by 279
Abstract
Persistent organic pollutants (POPs) are globally distributed toxic contaminants. Since 1990, mosses have been used in the UNECE European Moss Survey as cost-effective biomonitors of atmospheric deposition. This study provides the first predictive maps of POP concentrations in mosses, revealing nationwide contamination patterns [...] Read more.
Persistent organic pollutants (POPs) are globally distributed toxic contaminants. Since 1990, mosses have been used in the UNECE European Moss Survey as cost-effective biomonitors of atmospheric deposition. This study provides the first predictive maps of POP concentrations in mosses, revealing nationwide contamination patterns across Germany. As a case study within the Moss Survey, predictive models were built from POP concentrations measured at 21 sites in 2020 and combined with environmental and land-use data. Random Forest analyses explained more than 20% of the variance for seven of eleven POP groups, yielding robust spatial estimates, particularly for PAH, BDE 209, and DBDPE, despite moderate systematic differences. Explanatory power was limited for PCDD/F, PCDD/F TEQ values, DPTE, and HBBz, while HBCD, PBDE, DP, and PBT showed a moderate performance. A comparison with geostatistical reference maps indicated moderate to good concordance, though regional uncertainties persisted. Industrialized regions such as North Rhine–Westphalia, Rhine Neckar, Halle/Leipzig, and Saarland emerged as consistent hotspots, whereas rural and forested areas showed lower contamination. The findings highlight the value of moss surveys for spatial POP assessment and underscore the need for additional predictors, especially atmospheric deposition, and for integrating Random Forest models with geostatistical approaches such as regression kriging to enhance predictive accuracy. Full article
(This article belongs to the Special Issue Biomonitoring Air Pollution for a Healthier Planet)
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