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Search Results (257)

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15 pages, 1188 KB  
Article
LANTERN 2: Association Between Gene Molecular Profile and STAS in Lung Adenocarcinoma: A Comparative Analysis in a Prospective Real-World Population
by Carolina Sassorossi, Davide Dalfovo, Elisa De Paolis, Jessica Evangelista, Alessandra Cancellieri, Annalisa Campanella, Luca Boldrini, Esther G. C. Troost, Róza Ádány, Núria Farré, Ece Öztürk, Angelo Minucci, Rocco Trisolini, Emilio Bria, Stefano Margaritora, Steffen Löck and Filippo Lococo
Genes 2026, 17(6), 677; https://doi.org/10.3390/genes17060677 - 9 Jun 2026
Viewed by 227
Abstract
Introduction: Lung cancer, the leading cause of cancer-related mortality worldwide, is a heterogeneous malignancy comprising distinct histological and molecular subtypes, with non-small cell lung cancer (NSCLC) accounting for approximately 85% of cases and adenocarcinoma (ADC) representing the most prevalent histotype. An emerging [...] Read more.
Introduction: Lung cancer, the leading cause of cancer-related mortality worldwide, is a heterogeneous malignancy comprising distinct histological and molecular subtypes, with non-small cell lung cancer (NSCLC) accounting for approximately 85% of cases and adenocarcinoma (ADC) representing the most prevalent histotype. An emerging pathological feature of NSCLC, spread through air spaces (STAS)—defined as the extension of tumor cells into the lung parenchyma beyond the main tumor margin—has been associated with worse disease-free and overall survival and has been proposed as a possible predictor of recurrence to guide surgical extent. Concurrently, recent comprehensive genomic profiling of early-stage NSCLC has highlighted the need to interpret multi-omics data and their relationship with pathological variables, including IASLC histological subtypes, to better personalize treatment strategies. In this context, we investigated the overall distribution of STAS and its association with tumor mutational profiles and IASLC histological subtypes in a large real-world cohort of lung adenocarcinoma patients from the LANTERN project. Materials and Methods: In a prospective, multicenter observational study (March 2023–December 2024), 271 NSCLC patients were enrolled, and clinicopathological, immunohistochemical, and genomic data were collected; comprehensive genomic profiling was performed using the TruSight Oncology 500 assay to analyze 523 cancer-related genes, tumor mutational burden (TMB), and microsatellite instability; and STAS was assessed according to IASLC criteria. Adenocarcinoma accounted for roughly 90% of the cases, with a median age of 69 years and a predominance of stage IV disease (49.5%). STAS was evaluable in 162 cases and was detected in 17.9% of tumors. Results: STAS-positive tumors showed a higher trend towards locally advanced and advanced disease; no differences were observed in sex, age, smoking status, tumor mutational burden, or PD-L1 expression. Additionally, STAS-positive tumors showed a higher association with micropapillary, mucinous, and papillary patterns, whereas the acinar pattern was more frequent in STAS-negative tumors. The most frequently mutated genes were TP53, KRAS, EGFR, and STK11, with no significant differences between groups; ROS1 alterations were absent in STAS-negative tumors but detected more frequently in STAS-positive cases. Conclusions: Overall, these findings indicate that STAS positivity is associated with high-risk histological subtypes and advanced disease, suggesting its importance as a marker of tumor aggressiveness and emphasizing the need for its systematic evaluation in lung adenocarcinoma to better guide surgical planning and patient risk assessment. Full article
(This article belongs to the Special Issue Computational Genomics and Bioinformatics of Cancer)
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22 pages, 1479 KB  
Review
STIM1 GoF Mutants: Genotype–Phenotype Relationships Across the Stormorken/TAM/YPS Spectrum
by Lara Atzgerstorfer, Magdalena Prantl, Andrea Waldhauser, Isabella Derler and Marc Fahrner
Cells 2026, 15(10), 926; https://doi.org/10.3390/cells15100926 - 18 May 2026
Viewed by 583
Abstract
Store-operated Calcium (Ca2+) entry (SOCE), mediated by stromal interaction molecule 1 (STIM1) and Orai1, is a central pathway controlling intracellular Ca2+ homeostasis. Gain-of-function (GoF) mutations in STIM1 cause a spectrum of clinically overlapping disorders historically classified as Stormorken Syndrome (STK), [...] Read more.
Store-operated Calcium (Ca2+) entry (SOCE), mediated by stromal interaction molecule 1 (STIM1) and Orai1, is a central pathway controlling intracellular Ca2+ homeostasis. Gain-of-function (GoF) mutations in STIM1 cause a spectrum of clinically overlapping disorders historically classified as Stormorken Syndrome (STK), tubular aggregate myopathy (TAM), and York Platelet Syndrome (YPS). However, increasing evidence indicates that these entities could represent a shared disease spectrum rather than distinct conditions. At the molecular level, STIM1 activation is governed by a series of autoinhibitory checkpoints that maintain the protein in a tightly controlled resting state. GoF mutations disrupt these regulatory constraints, leading to dysregulated SOCE activity that is frequently, but not uniformly, associated with constitutive channel activation depending on the specific mutation and cellular context. While many disease-associated variants localize to the EF hand, a highly conserved helix–loop–helix Ca2+ binding motif, and the CC1 (coiled-coil 1) domain involved in molecular regulation of STIM1 activation, an increasing number of mutations in the C-terminal region further expands the mechanistic and clinical spectrum. In this review, we summarize current concepts of molecular STIM1 activation and discuss how distinct mutations perturb specific regulatory elements of the protein. By systematically integrating published case reports into a comprehensive overview, including a mutation–phenotype correlation table, we highlight the remarkable variability in and incomplete penetrance of clinical manifestations. Full article
(This article belongs to the Special Issue Regulation of Ca2+ Signals in Human Disease)
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10 pages, 2086 KB  
Case Report
Minimally Invasive Surgery as a Longitudinal Diagnostic and Restaging Tool in a Recurrent STK11-Altered Adnexal Tumor: A Case Report
by Antonio Maccio, Manuela Neri, Valerio Vallerino, Sonia Nemolato, Gabriele Sole, Elisabetta Pusceddu and Paolo Albino Ferrari
Diagnostics 2026, 16(10), 1415; https://doi.org/10.3390/diagnostics16101415 - 7 May 2026
Viewed by 326
Abstract
Background and Clinical Significance: Rare adnexal tumors with Wolffian or sex cord-like differentiation may undergo major diagnostic reclassification after integrated histologic and molecular review. The contribution of minimally invasive surgery to this process has rarely been described in detail. Case Presentation: [...] Read more.
Background and Clinical Significance: Rare adnexal tumors with Wolffian or sex cord-like differentiation may undergo major diagnostic reclassification after integrated histologic and molecular review. The contribution of minimally invasive surgery to this process has rarely been described in detail. Case Presentation: We focused on the case of a 33-year-old woman underwent laparoscopic right salpingectomy in October 2021 for a right-sided tubo-adnexal lesion initially diagnosed as adult granulosa cell tumor and later reinterpreted as high-grade endometrioid carcinoma. Completion staging in February 2022 was negative. Positron emission tomography/computed tomography in January 2023 raised concern for recurrence, and exploratory laparoscopy in March 2023 documented peritoneal metastatic disease, followed by four cycles of cisplatin given within the then-prevailing carcinoma-based diagnostic framework. A second laparoscopic reassessment in October 2023 was negative. Because of multifocal abdominal relapse, the patient underwent major cytoreductive surgery in October 2024. Integrated pathologic and molecular review then documented serine/threonine kinase 11 alteration together with forkhead box L2 negativity, favoring classification within the STK11-altered adnexal tumor spectrum. After external review, everolimus plus anastrozole was started in May 2025. Imaging in late 2025 documented persistent pelvic recurrence, and salvage xipho-pubic laparotomy in December 2025 revealed extensive disease involving both ureters, the bladder base, the rectosigmoid wall, and parietal peritoneum; recurrent tissue showed cluster of differentiation 117 positivity. At the most recent available follow-up in April 2026, the patient had no documented death and remained under postoperative surveillance. Discussion and Conclusions: This case illustrates the diagnostic importance of repeated tissue reassessment and the practical value of minimally invasive surgery as a relatively low-burden means of resection, restaging, and tissue acquisition in a rare molecularly reclassified adnexal tumor. Full article
(This article belongs to the Special Issue Gynecological Oncology: Advanced Diagnosis and Management in 2025)
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20 pages, 10492 KB  
Article
Bayesian-Optimized Weighted Ensemble Learning for Fluid-Type Identification in Carbonate Reservoirs
by Guorong Zhang, Chuqiao Gao, Bin Zhao and Shixuan Du
Processes 2026, 14(9), 1461; https://doi.org/10.3390/pr14091461 - 30 Apr 2026
Viewed by 250
Abstract
Carbonate reservoirs feature strong heterogeneity, significant anisotropy, and complex pore structures, making conventional logging insufficient to meet the fluid identification requirements for complex lithologic reservoirs. To address this issue, this study proposes a Bayesian-Optimized Weighted Ensemble (BO-WE) model, which combines three base models: [...] Read more.
Carbonate reservoirs feature strong heterogeneity, significant anisotropy, and complex pore structures, making conventional logging insufficient to meet the fluid identification requirements for complex lithologic reservoirs. To address this issue, this study proposes a Bayesian-Optimized Weighted Ensemble (BO-WE) model, which combines three base models: Support Vector Machine (SVM), random forests (RF), and Light Gradient Boosting Machine (LGBM). Bayesian optimization (BO) is used to tune the hyperparameters of the base model and determine the optimal ensemble weights. The proposed method is applied to the study area and compared with the Hard Voting (HVT) and Stacking (STK) ensemble models. The results show that BO achieves a reasonable weight distribution of the base model in the ensemble model, and the BO-WE model predicts the independent test set through four indicators: accuracy, precision, recall, and F1-score. The four indicators are all greater than 91.65%, and the fluid-type is accurately predicted. This model provides an effective method for fluid identification in carbonate reservoirs during oil and gas exploration and development. Full article
(This article belongs to the Section Petroleum and Low-Carbon Energy Process Engineering)
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20 pages, 1123 KB  
Review
STK11 as an Emerging Biomarker in Non-Small Cell Lung Cancer
by Amit A. Kulkarni, Adam Rock, Matthew Lee, Amanda Reyes, Manish R. Patel, Robert A. Kratzke and Ravi Salgia
Curr. Oncol. 2026, 33(5), 241; https://doi.org/10.3390/curroncol33050241 - 22 Apr 2026
Viewed by 1064
Abstract
Immune checkpoint inhibitors (ICIs) have transformed non-small cell lung cancer (NSCLC) treatment; however, durable responses occur in only a subset of patients, underscoring the need for robust predictive biomarkers. Serine/threonine kinase 11 (STK11) is an emerging biomarker that portends poor prognosis [...] Read more.
Immune checkpoint inhibitors (ICIs) have transformed non-small cell lung cancer (NSCLC) treatment; however, durable responses occur in only a subset of patients, underscoring the need for robust predictive biomarkers. Serine/threonine kinase 11 (STK11) is an emerging biomarker that portends poor prognosis and predicts therapeutic resistance. Loss of STK11 disrupts AMPK signaling, leading to unchecked mTOR activation, metabolic reprogramming, angiogenesis, and epithelial–mesenchymal transition, fostering tumor progression and immune evasion. STK11 mutations frequently co-occur with KRAS and KEAP1 alterations, exhibit low PD-L1 expression, an immunosuppressive tumor microenvironment that leads to the development of PD-1/PD-L1 resistance. Clinical studies consistently demonstrate inferior outcomes with ICIs in STK11-mutant NSCLC, particularly in the presence of KRAS and KEAP1 co-mutations. Dual checkpoint inhibition combining PD-1/PD-L1 and CTLA-4 blockade shows promise in overcoming resistance, results remain inconsistent, and prospective trials are ongoing. Beyond immunotherapy, STK11 mutations confer poor outcomes across targeted therapies, including KRAS G12C inhibitors, with KEAP1 co-mutation serving as a strong negative predictor of efficacy. In this review we present an overview of STK11 function and its role in tumor biology, highlight the prognostic and predictive potential of STK11 mutations in the context of NSCLC treatment and summarize the emerging treatment strategies. Full article
(This article belongs to the Section Oncology Biomarkers)
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15 pages, 1808 KB  
Article
Investigation of the Prevalence of Associated Genetic Mutations (Co-Mutations) in Patients with Actionable Driver Mutations in Lung Cancer: A Retrospective Study
by Abed Agbarya, Walid Shalata, Edmond Sabo, Leonard Saiegh, Yuval Shaham, Haitam Nasrallah, Kamel Mhameed, Salam Mazareb, Mohammad Sheikh-Ahmad and Dan Levy Faber
Diagnostics 2026, 16(7), 1106; https://doi.org/10.3390/diagnostics16071106 - 7 Apr 2026
Viewed by 749
Abstract
Background/Objectives: Lung cancer remains the leading cause of cancer-related mortality globally. Approximately 45% of these tumors harbor oncogenic mutations that drive carcinogenesis and are amenable to targeted therapies. Other predictive biomarkers—e.g., PD-L1, TMB, and MSI—play a crucial role in patients’ management. This [...] Read more.
Background/Objectives: Lung cancer remains the leading cause of cancer-related mortality globally. Approximately 45% of these tumors harbor oncogenic mutations that drive carcinogenesis and are amenable to targeted therapies. Other predictive biomarkers—e.g., PD-L1, TMB, and MSI—play a crucial role in patients’ management. This study aims to investigate the existence of mutation clusters (co-mutations) and evaluate the correlation of these clusters with various clinical and laboratory parameters. Methods: A retrospective study was conducted utilizing pathological samples from lung cancer patients harboring mutations in EGFR, KRAS, ALK, BRAF, MET, HER2, ROS1, NTRK, and NRG1. Data were collected from the Institute of Pathology at Carmel Medical Center between the years 2022 and 2024. Patients were stratified using a Two-Step Cluster Analysis algorithm based on actionable mutations and co-mutations. Heatmaps and dendrograms were generated to assess the correlation between these genomic clusters, clinical metrics, and predictive biomarkers. Results: The study cohort included 129 patients with actionable mutations. Five distinct clusters were identified: Clusters 1, 2, and 3 exhibited a high expression of STK11 and TP53 co-mutations alongside KRAS drivers (n = 38, n = 12, and n = 23, respectively). Clusters 4 and 5 demonstrated high expression of ALK alterations and tumor suppressor gene mutations (n = 31 and n = 25, respectively). Cluster comparisons demonstrated statistically significant differences between clusters regarding age, gender, PD-L1 expression, and tumor mutational burden. No significant associations were found regarding ethnicity or microsatellite instability status. Conclusions: By constructing clusters based on the aggregate of genomic alterations in patients with actionable mutations, it is possible to predict associations with distinct demographic and clinical characteristics. Future research should apply this analytical approach to larger cohorts to further characterize these subgroups and investigate potential correlations with therapeutic efficacy. Full article
(This article belongs to the Special Issue Advancements and Innovations in the Diagnosis of Lung Cancer)
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17 pages, 631 KB  
Review
Genetic Predisposition to Pancreatic Cancer: A Systematic Review of Hereditary Syndromes and Familial Aggregation
by Catalin Sergiu Baraian, Claudiu Stefan Turculet and Ionut Negoi
Cancers 2026, 18(6), 976; https://doi.org/10.3390/cancers18060976 - 18 Mar 2026
Viewed by 1203
Abstract
Background: Pancreatic cancer is a highly lethal malignancy, with a 5-year survival rate of approximately 8%. Roughly 10% of cases occur in individuals with familial pancreatic cancer or identified high-risk germline mutations, including STK11, CDKN2A, BRCA1/2, MLH1, and MSH2. Aim: We aimed to [...] Read more.
Background: Pancreatic cancer is a highly lethal malignancy, with a 5-year survival rate of approximately 8%. Roughly 10% of cases occur in individuals with familial pancreatic cancer or identified high-risk germline mutations, including STK11, CDKN2A, BRCA1/2, MLH1, and MSH2. Aim: We aimed to evaluate the risk of pancreatic cancer associated with inherited genetic mutations and to characterize these genetic syndromes. Methods: A systematic search of the PubMed database up to 2024 identified 1500 articles, of which 90 met the criteria for inclusion in this review. Results: High-risk individuals were defined as those with at least a 10-fold increased risk, moderate risk as 5–10-fold and low risk as under 5-fold. High-risk individuals included those with Peutz–Jeghers syndrome (132–140-fold risk), hereditary pancreatitis (50–87-fold risk), Familial Atypical Multiple Mole Melanoma syndrome (up to 48-fold risk), hereditary breast and ovarian cancer with BRCA2 mutation (up to 22-fold risk), and familial pancreatic cancer with at least three affected relatives (up to 32-fold risk). Moderate-risk patients had BRCA1, MLH1, MSH2, MSH6, p53, and ATM mutations, as well as familial pancreatic cancer with 1–2 affected kindred. Low-risk patients had familial adenomatous polyposis. Conclusions: Identifying high-risk individuals is crucial for effective genetic counseling, testing, and potential screening programs to facilitate early diagnosis and improve outcomes. Future research should prioritize large prospective cohorts, screening programs, and the integration of emerging technologies, such as AI-assisted imaging. Full article
(This article belongs to the Special Issue Screening and Surveillance of Gastrointestinal and Pancreatic Cancers)
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12 pages, 232 KB  
Article
STK11 and DNA Repair Gene Mutations Define Hereditary Subset of Middle Eastern Papillary Thyroid Cancer
by Rong Bu, Wael Haqawi, Eman A. Abdul Razzaq, Saud Azam, Kaleem Iqbal, Zeeshan Qadri, Sandeep Kumar Parvathareddy, Maha Alrasheed, Khadija Alobaisi, Fouad Al-Dayel, Abdul Khalid Siraj and Khawla S. Al-Kuraya
Int. J. Mol. Sci. 2026, 27(6), 2656; https://doi.org/10.3390/ijms27062656 - 14 Mar 2026
Viewed by 648
Abstract
Papillary thyroid cancer (PTC) is the most common endocrine malignancy with especially high incidence in Middle Eastern populations. While classical hereditary syndromes explain a minority of cases, the broader germline landscape of non-syndromic PTC remains unclear. Whole-exome sequencing was performed on 245 unselected [...] Read more.
Papillary thyroid cancer (PTC) is the most common endocrine malignancy with especially high incidence in Middle Eastern populations. While classical hereditary syndromes explain a minority of cases, the broader germline landscape of non-syndromic PTC remains unclear. Whole-exome sequencing was performed on 245 unselected Saudi PTC patients to identify germline pathogenic or likely pathogenic variants (PVs/LPVs) in cancer predisposition genes. Clinical and molecular characteristics, and family history were integrated to assess phenotypic correlations. Eleven patients (4.5%) harbored germline PVs/LPVs in cancer susceptibility genes including STK11, TP53, BRCA1, BRCA2, FANCA, SLX4, RAD50, MSH6, POLD1 and NF1. Four patients (36.4%) carried PVs/LPVs in canonical FA pathway genes; this increased to five patients (45.5%) when RAD50 was included. Two unrelated patients harbored the same STK11 variant (p.R304Q) without classical Peutz–Jeghers syndrome features. A TP53 hotspot mutation (p.R175H) was identified in a patient with a personal history of gastric cancer, a malignancy associated with Li–Fraumeni syndrome. Notably, the BRCA1 PV detected matches a known Saudi founder mutation in hereditary breast cancer, now observed in PTC. Most germline positive cases lacked syndromic manifestations, underscoring limitations of phenotype or family history-driven genetic testing strategies. These findings suggest that a small subset of non-syndromic PTC cases may carry germline PVs/LPVs in cancer predisposition genes, highlighting the need for broader genetic screening frameworks. Unbiased whole-exome analysis in unselected cohorts can uncover under-recognized genetic risk and guide screening strategies to address the unique hereditary landscape of thyroid cancer in underrepresented populations. Full article
(This article belongs to the Section Molecular Oncology)
20 pages, 2336 KB  
Article
Loss of PIK3CA Allows In Vitro Growth but Not In Vivo Progression of KRAS Mutant Lung Adenocarcinoma in a Syngeneic Orthotopic Implantation Model
by Abigail L. Booth, Giuseppe Caso, Barbara Rosati, Ya-Ping Jiang, Wei-Xing Zong, Richard Z. Lin and Harold Bien
Cells 2026, 15(6), 506; https://doi.org/10.3390/cells15060506 - 12 Mar 2026
Viewed by 869
Abstract
Constitutively active KRAS mutations are highly prevalent in lung cancers, but the direct role of its downstream phosphatidylinositol 3-kinase (PI3K) pathway in tumor progression remains unclear. A previous study established the requirement for PIK3CA, the alpha catalytic isoform, in lung tumor development in [...] Read more.
Constitutively active KRAS mutations are highly prevalent in lung cancers, but the direct role of its downstream phosphatidylinositol 3-kinase (PI3K) pathway in tumor progression remains unclear. A previous study established the requirement for PIK3CA, the alpha catalytic isoform, in lung tumor development in mouse models with an intact Trp53 tumor suppressor. In this study, we further investigated the requirement of PIK3CA for tumor growth both in vitro and in vivo. We first generated a “KPA” cell line by genetically deleting Pik3ca from a murine lung adenocarcinoma “KP” cell line harboring oncogenic KrasG12D and lacking Trp53. We also examined the requirement for STK11, a tumor suppressor and metabolic regulator frequently co-mutated with KRAS in lung cancer. We found that Pik3ca is not required for cell survival and growth in vitro, even under anchorage-independent conditions, but reduced the growth rate by 15%. We next orthotopically implanted KP and KPA cells into syngeneic mice and found that PIK3CA is absolutely required for tumor progression, even in the absence of Trp53. Implantation of KP cells, or a “KPS” cell line lacking the Stk11 gene, led to rapid tumor growth and death of all host animals. In contrast, mice implanted with KPA cells all survived with no detectable lung tumors. The gene expression profiles from cultured cell lines suggest oxidative stress as a potential vulnerability of KPA cells. Indeed, we found KPA cells were more sensitive to hydrogen peroxide and diethyl maleate-induced oxidative stress as compared to KP and KPS cells. Together, these results indicate that PIK3CA is not required for lung cancer cell growth induced by mutant KRAS in vitro but is essential for in vivo progression and growth. Full article
(This article belongs to the Special Issue The Role of Cell Signaling Pathway Starvation Therapy for Cancer)
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36 pages, 19472 KB  
Article
Optimised SBAS Ground Segment for Colombia Using Traffic and Ionospheric Risk Models
by Jaime Enrique Orduy, Sebastian Valencia, Felipe Rodriguez, Cristian Lozano, Juan Mosquera and Christian Rincon
Aerospace 2026, 13(3), 264; https://doi.org/10.3390/aerospace13030264 - 11 Mar 2026
Viewed by 729
Abstract
This paper presents the design, optimization, and performance evaluation of a Satellite-Based Augmentation System (SBAS) ground segment tailored to Colombia’s air navigation infrastructure, with emphasis on ionospheric anomalies in equatorial latitudes. The configuration comprises six Reference Stations (RIMS), strategically sited via geometric dilution [...] Read more.
This paper presents the design, optimization, and performance evaluation of a Satellite-Based Augmentation System (SBAS) ground segment tailored to Colombia’s air navigation infrastructure, with emphasis on ionospheric anomalies in equatorial latitudes. The configuration comprises six Reference Stations (RIMS), strategically sited via geometric dilution of precision (GDOP) minimization and airspace demand models from ADS-B data. A simulation suite—integrating STK®, Radio Mobile™, and Stanford-ESA certified monitors—quantifies service volume, link margins, and protection level compliance. Ionospheric threat characterization uses regional scintillation datasets (σln ≈ 0.36, ROTI95 ≈ 85 mm/km), informing GIVE inflation and dual-frequency pseudorange integrity validation. Simulations confirm the system sustains ≥ 99.8% APV-I availability over the CAR/SAM FIR, with Horizontal and Vertical Protection Levels (HPL/VPL) bounded below 28 m and 46 m. Uplink integrity and GEO broadcast continuity are modelled under worst-case masking and multipath, confirming ICAO Annex 10 SARPs compliance. The architecture achieves a high performance-to-cost ratio, enabling nationwide SBAS coverage with a 65% cost reduction versus legacy navaids. The system is forward-compatible with dual-frequency multi-constellation SBAS (DFMC), supporting future APV-II scalability. These results position Colombia as a regional node for GNSS augmentation, fostering safety, efficiency, and procedural harmonization. Full article
(This article belongs to the Section Astronautics & Space Science)
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19 pages, 2126 KB  
Article
Assessing the Bioenergy Potential of Peanut Shell Waste: High Heating Rate Combustion Behavior and Thermodynamic Analysis
by Suleiman Mousa, Abdulrahman Almithn, Ibrahim Dubdub, Abdullah Alshehab and Mohamed Anwar Ismail
Polymers 2026, 18(5), 560; https://doi.org/10.3390/polym18050560 - 26 Feb 2026
Viewed by 783
Abstract
This study provides a comprehensive analysis of peanut shell (PnS) combustion behavior using combined physicochemical characterization and non-isothermal thermogravimetric kinetics. To evaluate its potential as a sustainable solid biofuel, PnS was characterized for its proximate and ultimate composition, with its fiber structure analyzed [...] Read more.
This study provides a comprehensive analysis of peanut shell (PnS) combustion behavior using combined physicochemical characterization and non-isothermal thermogravimetric kinetics. To evaluate its potential as a sustainable solid biofuel, PnS was characterized for its proximate and ultimate composition, with its fiber structure analyzed via Van Soest methods and functional groups identified via FTIR spectroscopy. Thermogravimetric analysis (TGA) was performed at high heating rates (20,40,60, and 80 K min1) to investigate combustion stages under oxidative conditions. The results established PnS as a high-potential energy source, revealing a significant volatile matter content (65.30 wt%) and an exceptionally high heating value (20.87 MJ kg1), which surpasses many standard agricultural residues. The proximate analysis also indicated a moisture content of 9.61% and an ash content of 6.59%. TGA profiles displayed distinct decomposition stages, with the primary devolatilization occurring between 500 and 700 K. Kinetic analysis was conducted using six model-free methods: Friedman (FR), Flynn–Wall–Ozawa (FWO), Kissinger–Akahira–Sunose (KAS), Starink (STK), Kissinger (K), and Vyazovkin (VY) and the Coats-Redfern model-fitting method. The apparent activation energy Ea was found to vary with conversion (α), reflecting the complex degradation of the lignocellulosic matrix (47.86% cellulose, 28.4% lignin). The activation energy values ranged from approximately 23 kJ mol1 (VY method at low conversion) to 187 kJ mol1 (FR method at α=0.5). Model-fitting analysis identified the three-dimensional diffusion (D3) model as the governing reaction mechanism. Thermodynamic analysis indicated positive enthalpy (ΔH:70.7181.8 kJ mol1) and Gibbs free energy (ΔG: 116.2216.7 kJ mol1), with predominately negative entropy (ΔS), confirming the endothermic and non-spontaneous nature of the reaction activation. Full article
(This article belongs to the Section Circular and Green Sustainable Polymer Science)
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17 pages, 3397 KB  
Article
Identification of the Carcinogenic Process from Lobular Endocervical Glandular Hyperplasia to Gastric-Type Adenocarcinoma of the Uterine Cervix via Whole-Exome Sequencing
by Airi Kuruma, Tatsuo Masuda, Kazuaki Sato, Kansuke Kido, Daisuke Motooka, Naoko Komura, Takeshi Yokoi, Kosuke Yoshihara, Yasuto Kinose, Kae Hashimoto, Kenjiro Sawada, Eiichi Morii, Tadashi Kimura and Michiko Kodama
Cancers 2026, 18(4), 651; https://doi.org/10.3390/cancers18040651 - 17 Feb 2026
Viewed by 735
Abstract
Background: Gastric-type adenocarcinoma (GAS) of the uterine cervix is a rare malignancy with poor clinical outcomes. However, the carcinogenic processes involved remain unclear. Methods: Normal cervical glands, lobular endocervical glandular hyperplasia (LEGH), and GAS from the same patients were collected using [...] Read more.
Background: Gastric-type adenocarcinoma (GAS) of the uterine cervix is a rare malignancy with poor clinical outcomes. However, the carcinogenic processes involved remain unclear. Methods: Normal cervical glands, lobular endocervical glandular hyperplasia (LEGH), and GAS from the same patients were collected using laser microdissection for whole-exome sequencing. Single nucleotide variants (SNVs) and copy number alterations (CNAs) were analyzed. Phylogenetic trees were constructed based on the SNV and CNA profiles. Results: Analysis of seven matched samples demonstrated higher frequency of somatic mutations in the exonic regions in GAS than in LEGH. CNAs were prevalent in GAS but rare in LEGH. The phylogenetic analyses revealed various branching patterns. However, in three cases, the data suggested a sequential transition from LEGH to GAS, potentially associated with mutations in receptor-type protein tyrosine phosphatases such as PTPRF and PTPRT. STK11 and ARID1A mutations were present in LEGH, with an increased variant allele frequency observed in GAS. In contrast, SMAD4 and SMAD2 showed frequent loss-of-function–type alterations in GAS, including copy-number loss, but were not detected in LEGH. Conclusions: These findings provide insights into the genomic landscapes of LEGH and GAS and suggest potential molecular markers for this transition, which may inform future diagnostic and therapeutic research. Full article
(This article belongs to the Special Issue Genetics and Epigenetics of Gynecological Cancer)
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27 pages, 6214 KB  
Review
Gastric-Type Cervical Adenocarcinoma: Clinicopathologic Features, Molecular Landscape, and Therapeutic Challenges
by Hiroshi Yoshida, Daiki Higuchi, Waku Takigawa, Nao Kikkawa, Taro Yamanaka, Ayaka Nagao, Mayumi Kobayashi-Kato, Masaya Uno, Mitsuya Ishikawa and Kouya Shiraishi
J. Pers. Med. 2026, 16(2), 72; https://doi.org/10.3390/jpm16020072 - 31 Jan 2026
Cited by 2 | Viewed by 2702
Abstract
Endocervical adenocarcinoma is now classified within an etiologic framework based on the presence or absence of high-risk human papillomavirus (HPV) infection. Gastric-type endocervical adenocarcinoma (GAS) is the prototypical HPV-independent subtype, accounting for up to 25% of endocervical adenocarcinomas and showing a particularly high [...] Read more.
Endocervical adenocarcinoma is now classified within an etiologic framework based on the presence or absence of high-risk human papillomavirus (HPV) infection. Gastric-type endocervical adenocarcinoma (GAS) is the prototypical HPV-independent subtype, accounting for up to 25% of endocervical adenocarcinomas and showing a particularly high frequency in East Asia. GAS is typically diagnosed at a more advanced stage than usual-type HPV-associated endocervical adenocarcinoma (UEA); exhibits deep stromal and parametrial invasion, lymphovascular space invasion, and a strong propensity for ovarian and peritoneal metastasis; and is associated with markedly worse survival, even in stage I disease. Radiological evaluation is challenging because of diffuse infiltrative growth, prominent mucin production, and frequent underestimation of extra-cervical spread. Histologically, GAS shows gastric-type (pyloric) differentiation, ranging from minimal deviation adenocarcinoma to poorly differentiated forms, and often overlaps with precursor lesions such as atypical lobular endocervical glandular hyperplasia and gastric-type adenocarcinoma in situ. Immunophenotypically, GAS is typically p16-negative, ER/PR-negative, and frequently exhibits mutant-type p53 and expression of gastric markers including MUC6, HIK1083, and claudin 18.2. Recent next-generation sequencing and multi-omics studies have revealed recurrent alterations in TP53, CDKN2A, STK11, KRAS, ARID1A, KMT2D, and homologous recombination-related genes, together with the activation of PI3K/AKT, WNT/β-catenin, TGF-β, and EMT pathways and characteristic metabolic reprogramming. GAS is highly resistant to conventional chemotherapy and radiotherapy, and its current management follows guidelines for squamous and usual-type adenocarcinoma. Emerging data support precision-medicine approaches targeting HER2/HER3, PD-1/PD-L1, and claudin 18.2, and suggest a role for PARP inhibition and other genotype-directed therapies in selected subsets. Given its aggressive biology and rising relative incidence in the HPV-vaccination era, GAS represents a critical unmet need in gynecologic oncology. Future progress hinges on developing reliable diagnostic biomarkers, refining imaging protocols, and validating targeted therapies through international clinical trials. Full article
(This article belongs to the Special Issue Molecular Pathology in Cancer Research)
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16 pages, 1978 KB  
Article
Oncological Outcomes and Genomic Features of Gastric-Type Endocervical Adenocarcinoma, the Most Aggressive and Common HPV-Independent Cervical Cancer
by Ming Du, Zhen Zheng, Peiyao Lu, Weidi Wang, Dongyan Cao, Jiaxin Yang, Ming Wu, Lingya Pan, Xiaowei Xue, Wenze Wang, Fang Jiang and Yang Xiang
Cancers 2026, 18(2), 320; https://doi.org/10.3390/cancers18020320 - 20 Jan 2026
Cited by 1 | Viewed by 1331
Abstract
Background/Objectives: In order to develop a comprehensive understanding of gastric-type endocervical adenocarcinoma (GEA), an increasingly prevalent HPV-independent cervical cancer, we summarized clinicopathological information and performed prognostic analysis. Methods: A total of 182 patients diagnosed with GEA at our center during the [...] Read more.
Background/Objectives: In order to develop a comprehensive understanding of gastric-type endocervical adenocarcinoma (GEA), an increasingly prevalent HPV-independent cervical cancer, we summarized clinicopathological information and performed prognostic analysis. Methods: A total of 182 patients diagnosed with GEA at our center during the period 2014–2025 were included in this study. Nineteen GEA cases, 6 HPV-independent non-GEA cases, 59 HPV-associated usual endocervical adenocarcinoma cases, and 66 squamous cell carcinoma cases from online database were also included. Results: Vaginal bleeding (39.56%) and watery discharge (35.16%) were the most common symptoms. As many as 21.43% of patients had no specific complaints, and 80% of GEA showed no distinct mass through gynecological examination. A total of 64% of GEA were stage IIB–IV at diagnosis, with a 5-year survival of 41% versus 85% for stage I–IIA (p < 0.05). The rate of lymphovascular space invasion (LVSI), lymph node metastasis, and ovarian metastasis were 49.64%, 42.00%, and 29.29%, respectively. The 5-year survival and recurrence rates after primary therapy were 57% and 23%, respectively. For GEA treatment, surgery might be associated with improved overall survival for the population at stage III–IV. Survival analysis identified deep infiltration depth (≥2/3), a maximum diameter of the tumor (MDOT) of ≥3 cm, and ovary metastasis as potential indicators of worse OS and PFS for whole patients. Additionally, ovary metastasis indicated poor PFS and OS for stage I–II. Genomic information TP53 mutation, PTEN deletion and STK11 mutation might be the most prevalent genomic alterations. Conclusions: These findings indicated GEA as an aggressive cervical cancer, with high rate of lymph node metastasis, high recurrence rate and short 5-year survival. Ovary metastasis reflected advanced disease burden and surgery might be associated with improved survival in advanced stage. For genomic information, GEA showed genetic heterogeneity and a low level of genomic instability. Full article
(This article belongs to the Section Cancer Pathophysiology)
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22 pages, 6253 KB  
Review
Lung Cancer in Never-Smokers: Risk Factors, Driver Mutations, and Therapeutic Advances
by Po-Ming Chen, Yu-Han Huang and Chia-Ying Li
Diagnostics 2026, 16(2), 245; https://doi.org/10.3390/diagnostics16020245 - 12 Jan 2026
Cited by 5 | Viewed by 3947
Abstract
Background and Objectives: Lung cancer in never-smokers (LCINS) has become a major global health concern, ranking as the fifth leading cause of cancer-related mortality. Unlike smoking-related lung cancer, LCINS arises from complex interactions between environmental carcinogens and distinct genomic alterations. This review [...] Read more.
Background and Objectives: Lung cancer in never-smokers (LCINS) has become a major global health concern, ranking as the fifth leading cause of cancer-related mortality. Unlike smoking-related lung cancer, LCINS arises from complex interactions between environmental carcinogens and distinct genomic alterations. This review summarizes current evidence on environmental risks, molecular features, and therapeutic progress shaping lung cancer management. Methods: A narrative review was conducted to examine risk factors for lung cancer in non-smokers. Studies reporting driver mutations in never-smokers and smokers were identified across major lung cancer histological subtypes, including small-cell lung cancer (SCLC), lung adenocarcinoma (LUAD), squamous cell carcinoma (SCC), and large-cell carcinoma (LCC). In addition, PubMed was searched for phase III trials and studies on targeted therapies related to driver mutations published between 2016 and 2025. Results: Environmental factors such as cooking oil fumes, radon, asbestos, arsenic, and fine particulate matter (PM2.5) are strongly associated with LCINS through oxidative stress, DNA damage, and chronic inflammation. EGFR, PIK3CA, OS9, MET, and STK11 mutations are characteristic of never-smokers, in contrast to TP53 mutations, which are more common in smokers. Recent advances in targeted therapy and immunotherapy have improved survival and quality of life, emphasizing the importance of molecular profiling for treatment selection. Conclusions: LCINS represents a distinct clinical and molecular entity shaped by complex interactions between environmental exposures and genetic susceptibility. Genetic alterations promote tumor immune evasion, facilitating cancer development and progression. Continued advances in air quality control, molecular diagnostics, and precision therapies are essential for prevention, early detection, and reduction of the global disease burden. Full article
(This article belongs to the Special Issue Lung Cancer: Screening, Diagnosis and Management: 2nd Edition)
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