Biological Research最新文献

筛选
英文 中文
Palmitoylation in focus: bridging reproductive biology and translational research. 棕榈酰化的焦点:连接生殖生物学和转化研究。
IF 4.3 2区 生物学
Biological Research Pub Date : 2025-04-28 DOI: 10.1186/s40659-025-00601-w
Suriyaraj Shanmugasundaram Prema, Deepankumar Shanmugamprema
{"title":"Palmitoylation in focus: bridging reproductive biology and translational research.","authors":"Suriyaraj Shanmugasundaram Prema, Deepankumar Shanmugamprema","doi":"10.1186/s40659-025-00601-w","DOIUrl":"https://doi.org/10.1186/s40659-025-00601-w","url":null,"abstract":"","PeriodicalId":9084,"journal":{"name":"Biological Research","volume":"58 1","pages":"22"},"PeriodicalIF":4.3,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12036139/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143968468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cardiac endothelial cells and cardiomyocytes alter their communication properties in diabetic mice. 糖尿病小鼠心脏内皮细胞和心肌细胞改变其通讯特性。
IF 4.3 2区 生物学
Biological Research Pub Date : 2025-04-28 DOI: 10.1186/s40659-025-00602-9
Yan Wen, Qing Wang
{"title":"Cardiac endothelial cells and cardiomyocytes alter their communication properties in diabetic mice.","authors":"Yan Wen, Qing Wang","doi":"10.1186/s40659-025-00602-9","DOIUrl":"https://doi.org/10.1186/s40659-025-00602-9","url":null,"abstract":"<p><strong>Objective: </strong>We aimed to explore the heterogeneities and communication properties of cardiac CMs and ECs in diabetes.</p><p><strong>Methods: </strong>GSE213337 dataset was retrieved from NCBI Gene Expression Omnibus, containing the single-cell RNA sequencing data of hearts from the control and streptozotocin-induced diabetic mice. Cell cluster analysis was performed to identify the cell atlas. Data of CMs and ECs were extracted individually for re-cluster analysis, functional enrichment analysis and trajectory analysis. Cell communication analysis was conducted to explore the altered signals and significant ligand-receptor interactions.</p><p><strong>Results: </strong>Eleven cell types were identified in the heart tissue. CMs were re-clustered into four subclusters, and cluster 4 was dominant in diabetic condition and enriched in cellular energy metabolism processes. ECs were re-clustered into six subclusters, and clusters 2, 4 and 5 were dominant in the diabetic condition and mainly enriched in cellular energy metabolism and lipid transport processes. The cellular communication network was altered in the diabetic heart. ECs dominated the overall signaling and notably increased the ANGPTL and SEMA4 signals in the diabetic heart. Four significant ligand-receptor pairs implicating the two signals contributed to the communication between ECs and other cell types, including Angptl1-(Itga1 + Itgb1), Angptl4-Cdh5, Angptl4-Sdc3, and Sema4a-(Nrp + Plxna2). The ligand Angptl4 engaged in ECs-CMs communication in a paracrine manner.</p><p><strong>Conclusion: </strong>Single-cell sequencing analysis revealed heterogeneities of ECs and CMs in diabetes, Angptl4-Cdh5 and Angptl4-Sdc3 were involved in the communication between ECs and CMs in diabetes.</p>","PeriodicalId":9084,"journal":{"name":"Biological Research","volume":"58 1","pages":"23"},"PeriodicalIF":4.3,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12036212/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143963651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Olfactory dysfunction and altered cortical excitability in the mouse model of Fragile X Syndrome. 脆性X综合征小鼠模型的嗅觉功能障碍和皮质兴奋性改变。
IF 4.3 2区 生物学
Biological Research Pub Date : 2025-04-24 DOI: 10.1186/s40659-024-00582-2
Felipe Arancibia, Marcelo Rojas, Diego Becerra, Rocío Fuenzalida, Christian Cea-Del Rio, Jorge Mpodozis, Magdalena Sanhueza, Alexia Nunez-Parra
{"title":"Olfactory dysfunction and altered cortical excitability in the mouse model of Fragile X Syndrome.","authors":"Felipe Arancibia, Marcelo Rojas, Diego Becerra, Rocío Fuenzalida, Christian Cea-Del Rio, Jorge Mpodozis, Magdalena Sanhueza, Alexia Nunez-Parra","doi":"10.1186/s40659-024-00582-2","DOIUrl":"https://doi.org/10.1186/s40659-024-00582-2","url":null,"abstract":"<p><p>Fragile X Syndrome (FXS) is the most common monogenetic cause of autism and inherited intellectual disability. A key feature of FXS symptomatology is altered sensory processing greatly affecting FXS individual's life quality. Here, we use a combination of behavioral tests and slice physiology tools to study the neurophysiological alterations underlying aberrant sensory processing in the olfactory system of the FXS mouse model (Fmr1 KO). We focused on the piriform cortex (PC), since it is in this brain region where olfactory information is integrated and ultimately decoded. Using a go-no go behavioral task we have found that Fmr1 KO learn to discriminate between a rewarded and a not rewarded odorant but cannot distinguish complex odor mixtures, akin to what is found in the environment. Moreover, Fmr1 KO long-term memory is impaired compared to control mice suggesting possibly cortical processing alterations. In addition, electrophysiological data from PC layer II neurons of Fmr1 KO mice showed a hyperexcitable phenotype manifested by differences in active membrane properties and altered network connectivity. Taken together, our data suggest a possible causal link between the observed olfactory discrimination deficiencies in the Fmr1 KO mouse and the altered physiology of PC.</p>","PeriodicalId":9084,"journal":{"name":"Biological Research","volume":"58 1","pages":"21"},"PeriodicalIF":4.3,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12023451/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143964113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Chaperone-assisted E3 ligase-engineered mesenchymal stem cells target hyperglycemia-induced p53 for ubiquitination and proteasomal degradation ameliorates self-renewal. 伴侣辅助E3连接酶工程间充质干细胞靶向高血糖诱导的p53泛素化和蛋白酶体降解改善自我更新。
IF 4.3 2区 生物学
Biological Research Pub Date : 2025-04-24 DOI: 10.1186/s40659-025-00604-7
Ayaz Ali, Wei-Wen Kuo, Chia-Hua Kuo, Jeng-Feng Lo, Dennis Jine-Yuan Hsieh, Peiying Pai, Tsung-Jung Ho, Marthandam Asokan Shibu, Shinn-Zong Lin, Chih-Yang Huang
{"title":"Chaperone-assisted E3 ligase-engineered mesenchymal stem cells target hyperglycemia-induced p53 for ubiquitination and proteasomal degradation ameliorates self-renewal.","authors":"Ayaz Ali, Wei-Wen Kuo, Chia-Hua Kuo, Jeng-Feng Lo, Dennis Jine-Yuan Hsieh, Peiying Pai, Tsung-Jung Ho, Marthandam Asokan Shibu, Shinn-Zong Lin, Chih-Yang Huang","doi":"10.1186/s40659-025-00604-7","DOIUrl":"https://doi.org/10.1186/s40659-025-00604-7","url":null,"abstract":"<p><strong>Background: </strong>Stem cell therapies may potentially be used in regenerative and reconstructive medicine due to their ability for self-renewal and differentiation. Stressful conditions, such as hyperglycemia, adversely affect stem cell functions, impairing their function and promoting differentiation by opposing self-renewal. The carboxyl terminus of HSP70 interacting protein (CHIP), which is a cochaperone and E3 ligase, maintains protein homeostasis and performs quality control of the cell via ubiquitylation. However, the role of CHIP in regulating stemness remains unknown.</p><p><strong>Results: </strong>Hyperglycemia downregulated CHIP-induced p53, arrested the cell cycle at the gap (G<sub>1</sub>) phase, and promoted the loss of stemness in WJMSCs. Quantitative real-time polymerase chain reaction (qRT-PCR), Western blotting, immunofluorescence, and cell cycle analysis showed that CHIP-overexpressing WJMSCs downregulated the expression of phosphorylated p53 and shortened its half-life while enhancing self-renewal factors. Additionally, co-IP and Western blotting revealed that CHIP promoted the ubiquitination and proteasomal degradation of hyperglycemia-induced p53 through the chaperone system.</p><p><strong>Conclusions: </strong>CHIP may promote ubiquitin-mediated proteasomal degradation of hyperglycemia-induced p53 rescues self-renewal genes, which can maintain the long-term undifferentiated state of WJMSCs. CHIP may be an alternative therapeutic option in regenerative medicine for hyperglycemic-related complications in diabetes.</p>","PeriodicalId":9084,"journal":{"name":"Biological Research","volume":"58 1","pages":"20"},"PeriodicalIF":4.3,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12020092/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143963437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Uncovering leading compounds for alzheimer's disease treatment: mendelian randomization and virtual screening insights into plasma protein modulation. 发现治疗阿尔茨海默病的主要化合物:泯灭随机化和虚拟筛选对血浆蛋白调节的启示。
IF 4.3 2区 生物学
Biological Research Pub Date : 2025-04-05 DOI: 10.1186/s40659-025-00598-2
Xiaohan Sun, Xiaofei Hu, Jianming Wei, Haoyu An
{"title":"Uncovering leading compounds for alzheimer's disease treatment: mendelian randomization and virtual screening insights into plasma protein modulation.","authors":"Xiaohan Sun, Xiaofei Hu, Jianming Wei, Haoyu An","doi":"10.1186/s40659-025-00598-2","DOIUrl":"10.1186/s40659-025-00598-2","url":null,"abstract":"<p><p>Alzheimer's disease (AD) is a neurodegenerative disorder influenced by both genetic and environmental factors. Identifying therapeutic targets and interventions remains challenging. This study utilized Mendelian Randomization (MR) to investigate causal relationships between plasma proteins, lifestyle factors, and AD, along with virtual screening to identify potential drug compounds. A two-sample MR analysis assessed associations between plasma proteins, identified through genome-wide association studies (GWAS), and AD risk. Co-localization analysis (CA) confirmed the overlap between protein expression and AD susceptibility loci, and reverse MR ruled out reverse causality. A protein-protein interaction (PPI) network was constructed to explore therapeutic targets, followed by virtual screening to identify small-molecule inhibitors for selected proteins. The analysis found significant associations between eight plasma proteins and AD, with five proteins (GSTP1, BIN1, Siglec-3, SERPINF2, and GRN) showing strong evidence of involvement in AD pathogenesis. Virtual screening identified six compounds as potential inhibitors of GSTP1 and four compounds as potential inhibitors of BIN1. Furthermore, MR analysis of lifestyle factors, such as dietary behaviors and smoking cessation, indicated they may influence AD risk through their effects on specific proteins. These findings offer novel insights into the genetic mechanisms underlying AD and highlight the potential of combining MR with virtual screening to identify therapeutic targets. The study also suggests that lifestyle modifications could offer alternative prevention and treatment strategies for AD. Future research should focus on the experimental validation of the identified compounds and further explore the mechanisms linking lifestyle factors to AD.</p>","PeriodicalId":9084,"journal":{"name":"Biological Research","volume":"58 1","pages":"19"},"PeriodicalIF":4.3,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11971886/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143787574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Functional characterization of two KCND3 variants associated with SCA 19/22 ataxia in Latin American families. 拉丁美洲家庭中与SCA 19/22共济失调相关的两个KCND3变异的功能特征
IF 4.3 2区 生物学
Biological Research Pub Date : 2025-03-26 DOI: 10.1186/s40659-025-00589-3
Felipe Arancibia, Fernanda Martin, Jenny Ruiz-Fuentes, Erbio Diaz, Tamara Hermosilla, Wendy Gonzalez, Felipe Simon, Diana Avila-Jaque, Mariana Luna-Álvarez, David José Dávila Ortiz de Montellano, Marcelo Miranda, M Leonor Bustamante, Diego Varela
{"title":"Functional characterization of two KCND3 variants associated with SCA 19/22 ataxia in Latin American families.","authors":"Felipe Arancibia, Fernanda Martin, Jenny Ruiz-Fuentes, Erbio Diaz, Tamara Hermosilla, Wendy Gonzalez, Felipe Simon, Diana Avila-Jaque, Mariana Luna-Álvarez, David José Dávila Ortiz de Montellano, Marcelo Miranda, M Leonor Bustamante, Diego Varela","doi":"10.1186/s40659-025-00589-3","DOIUrl":"10.1186/s40659-025-00589-3","url":null,"abstract":"<p><strong>Background: </strong>Spinocerebellar ataxia 19/22 (SCA19/22) represents a rare autosomal dominant genetic disorder resulting in progressive ataxia and cerebellar atrophy. SCA19/22 is caused by variants in the KCND3 gene, which encodes a voltage-gated potassium channel subunit essential for cerebellar Purkinje cell function. To date, 22 variants have been reported worldwide, with incomplete functional studies.</p><p><strong>Results: </strong>We present four Chilean and Mexican cases in whom two single-nucleotide variants were identified through whole-exome sequencing of the probands. One variant (G371R) was initially cataloged as pathogenic and the other (S357W) as likely pathogenic according to the American College of Medical Genetics and Genomics criteria. The pathogenicity of the G371R variation was confirmed by in-silico mutagenesis. Our molecular models, that include electrostatic potential analysis and algorithms to analyze the pore dimensions (HOLE), indicated that the longer side chain of the arginine narrowed the channel's selectivity filter, while the positive charge modified its surface electrostatic potential, presumably preventing potassium flux. Functional characterization of the S357W variant was performed in AD293 cells. When overexpressed, K<sub>V</sub>4.3<sup>S357W</sup> channels alone showed no current. Protein electrophoresis revealed that the total number of K<sub>V</sub>4.3 channels expressed did not differ between the wild-type and mutated phenotypes, suggesting a protein trafficking malfunction. Co-expression of the KChIP2 auxiliary subunit partially rescued the potassium currents when the variant was expressed, albeit with very different biophysical characteristics, including faster inactivation vs. wild-type channels.</p><p><strong>Conclusions: </strong>This functional characterization of two KCND3 variants associated with SCA19/22 adds new evidence for the pathogenic role of Kv4.3 loss-of-function mutations and establishes a correlation between functional dominance and clinical severity in SCA19/22.</p>","PeriodicalId":9084,"journal":{"name":"Biological Research","volume":"58 1","pages":"18"},"PeriodicalIF":4.3,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11938557/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143717761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Interactive and evolutionary effect of CASZ1 gene variants on varicose veins susceptibility in South Asian Indians. 南亚印第安人CASZ1基因变异对静脉曲张易感性的交互作用和进化效应
IF 4.3 2区 生物学
Biological Research Pub Date : 2025-03-19 DOI: 10.1186/s40659-025-00599-1
Rohit Mehra, Vikram Patra, Rishi Dhillan, Dattatraya Cvnm, Hemender Singh, Love Gupta, Garima Rastogi, Indu Sharma, Varun Sharma
{"title":"Interactive and evolutionary effect of CASZ1 gene variants on varicose veins susceptibility in South Asian Indians.","authors":"Rohit Mehra, Vikram Patra, Rishi Dhillan, Dattatraya Cvnm, Hemender Singh, Love Gupta, Garima Rastogi, Indu Sharma, Varun Sharma","doi":"10.1186/s40659-025-00599-1","DOIUrl":"10.1186/s40659-025-00599-1","url":null,"abstract":"<p><strong>Background: </strong>Varicose veins (VV) are spectrum of common vascular diseases having complex genetic etiology. The Castor Zinc Finger 1 (CASZ1) gene has been involved in vascular development and its variant has shown association with VV in various ethnicities, but CASZ1 susceptibility to VV risk is unexplored in the South Asian Indian population. The objective of this study was to estimate the association of the CASZ1 gene variations and VV susceptibility in the South Asian Indians, and to examine the evolutionary patterns of these variants compared to other populations.</p><p><strong>Methodology: </strong>Population based case control analysis was conducted on all CASZ1 variants present in the Global Screening Array, including the established VV variant rs11121615 with a focus on validating and identification of both novel and established genetic markers to capture a full spectrum of population-specific genetic markers unique to studied population group. Linkage disequilibrium patterns and cumulative variant effects were also analyzed, followed by selection pressure assessment using neutrality tests.</p><p><strong>Results: </strong>Three CASZ1 variants rs72860191 (OR 1.58, 95% CI 1.07-2.32, p = 0.01), rs7519604 (OR 1.43, 95% CI 1.05-1.94, p = 0.01), and rs11121615 (OR 0.69, 95% CI 0.50-0.95, p = 0.02) were observed to be significantly associated with VV. Haplotype analysis identified unique haplotype structure of South Asian Indians compared to other global populations. Moreover, the cumulative OR was observed to be higher than the independently estimated values (OR = 2.41, 95% CI 1.48-3.94), indicating genotypic epistasis of VV associated variants. The neutrality tests revealed balancing selection within CASZ1 in the studied population compared to other populations, CONCLUSION: The present study identified CASZ1 variants and their epistatic interactions is associated with VV susceptibility supported with evidence of balancing selection, provides crucial insights into the genetic architecture of VV in studied group, highlighting the impact of evolutionary forces on disease susceptibility.</p>","PeriodicalId":9084,"journal":{"name":"Biological Research","volume":"58 1","pages":"17"},"PeriodicalIF":4.3,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11921479/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143662425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of the synergistic effect of metformin and FX11 on PANC-1 cell lines. 二甲双胍与FX11对PANC-1细胞系协同作用的研究。
IF 4.3 2区 生物学
Biological Research Pub Date : 2025-03-17 DOI: 10.1186/s40659-025-00592-8
Melike Bayindir-Bilgic, Ezgi Duman, Deniz Turgut, Ayse Naz Kadikoylu, Nur Ekimci-Gurcan, Utku Ozbey, Aysegul Kuskucu, Omer F Bayrak
{"title":"Investigation of the synergistic effect of metformin and FX11 on PANC-1 cell lines.","authors":"Melike Bayindir-Bilgic, Ezgi Duman, Deniz Turgut, Ayse Naz Kadikoylu, Nur Ekimci-Gurcan, Utku Ozbey, Aysegul Kuskucu, Omer F Bayrak","doi":"10.1186/s40659-025-00592-8","DOIUrl":"10.1186/s40659-025-00592-8","url":null,"abstract":"<p><strong>Background: </strong>Pancreatic cancer is among the most aggressive and malignant tumors and is a leading cause of cancer-related mortality. It is characterized by its metabolic Warburg effect and glucose dependence. Aerobic glycolysis is a key feature of metabolic reprogramming in cancer cells. This study investigates the combined effect of metformin and FX11, hypothesizing that disrupting cancer cell energetics through complementary mechanisms may result in a synergistic therapeutic effect. The combination of metformin and FX11 affects the axis that regulates vital functions in cancer cells; thus, the uncontrolled growth of tumor cells, especially those that use a lactose-dependent energy pathway, can be controlled. Several in vitro experiments were conducted to evaluate this hypothesis. PANC-1 cell proliferation was assessed using an MTS assay, lactate levels were measured via an LDH assay, and apoptosis was determined using a flow cytometry-based PE-annexin V assay. The downstream effects of metformin and FX11 treatment were evaluated via western blot analysis.</p><p><strong>Results: </strong>The findings of this study revealed that metformin and FX11 significantly decreased the viability of PANC-1 cells when used in combination, and this effect was achieved by significantly affecting the energy mechanism of the cells through the AMPKα axis. Furthermore, the lactate levels in PANC1 cells co-treated with metformin and FX11 were significantly decreased, while the increased cellular stress led the cells to apoptosis.</p><p><strong>Conclusions: </strong>Compared with metformin treatment alone, the combination treatment of metformin and FX11 stimulates cellular stress in pancreatic cancer and targets various energy processes that encourage cancer cells to undergo apoptosis. This study provides a novel therapeutic strategy for the treatment of pancreatic cancer.</p>","PeriodicalId":9084,"journal":{"name":"Biological Research","volume":"58 1","pages":"15"},"PeriodicalIF":4.3,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11912783/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143647224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recent advances in the mechanisms of PD-L1 expression in gastric cancer: a review. PD-L1在胃癌中的表达机制研究进展
IF 4.3 2区 生物学
Biological Research Pub Date : 2025-03-17 DOI: 10.1186/s40659-025-00597-3
Peifeng Chen, Zhangming Chen, Wannian Sui, Wenxiu Han
{"title":"Recent advances in the mechanisms of PD-L1 expression in gastric cancer: a review.","authors":"Peifeng Chen, Zhangming Chen, Wannian Sui, Wenxiu Han","doi":"10.1186/s40659-025-00597-3","DOIUrl":"10.1186/s40659-025-00597-3","url":null,"abstract":"<p><p>In the progression of gastric cancer (GC), various cell types in the tumor microenvironment (TME) exhibit upregulated expression of programmed death ligand 1 (PD-L1), leading to impaired T-cell function and evasion of immune surveillance. Infection with H. pylori and EBV leads to increased PD-L1 expression in various cell types within TME, resulting in immune suppression and facilitating immune escape of GC cells. In the TME, mesenchymal stem cells (MSCs), M1-like tumor-associated macrophages (MI-like TAM), and myeloid-derived suppressor cells (MDSCs) contribute to the upregulation of PD-L1 expression in GC cells. Conversely, mast cells, M2-like tumor-associated macrophages (M2-like TAM), and tumor-associated neutrophils (TANs) exhibit elevated levels of PD-L1 expression in response to the influence of GC cells. Together, these factors collectively contribute to the upregulation of PD-L1 expression in GC. This review aims to provide a comprehensive summary of the cellular expression patterns of PD-L1 in GC and the underlying molecular mechanisms. Understanding the complex regulatory pathways governing PD-L1 expression may offer novel insights for the development of effective immunotherapeutic interventions.</p>","PeriodicalId":9084,"journal":{"name":"Biological Research","volume":"58 1","pages":"16"},"PeriodicalIF":4.3,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11912799/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143647229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Protective role of extracellular vesicles against oxidative DNA damage. 细胞外囊泡对DNA氧化损伤的保护作用。
IF 4.3 2区 生物学
Biological Research Pub Date : 2025-03-13 DOI: 10.1186/s40659-025-00595-5
Jordi Ribas-Maynou, Ana Parra, Pablo Martínez-Díaz, Camila Peres Rubio, Xiomara Lucas, Marc Yeste, Jordi Roca, Isabel Barranco
{"title":"Protective role of extracellular vesicles against oxidative DNA damage.","authors":"Jordi Ribas-Maynou, Ana Parra, Pablo Martínez-Díaz, Camila Peres Rubio, Xiomara Lucas, Marc Yeste, Jordi Roca, Isabel Barranco","doi":"10.1186/s40659-025-00595-5","DOIUrl":"10.1186/s40659-025-00595-5","url":null,"abstract":"<p><strong>Background: </strong>Oxidative stress, a source of genotoxic damage, is often the underlying mechanism in many functional cell disorders. Extracellular vesicles (EVs) have been shown to be key regulators of cellular processes and may be involved in maintaining cellular redox balance. Herein, we aimed to develop a method to assess the effects of EVs on DNA oxidation using porcine seminal plasma extracellular vesicles (sEVs).</p><p><strong>Results: </strong>The technique was set using a cell-free plasmid DNA to avoid the bias generated by the uptake of sEVs by sperm cells, employing increasing concentrations of hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) that generate DNA single-strand breaks (SSBs). Because SSBs contain a free 3'-OH end that allow the extension through quantitative PCR, such extension -and therefore the SYBR intensity- showed to be proportional to the amount of SSB. In the next stage, H<sub>2</sub>O<sub>2</sub> was co-incubated with two size-differentiated subpopulations (small and large) of permeabilized and non-permeabilized sEVs to assess whether the intravesicular content (IC) or the surface of sEVs protects the DNA from oxidative damage. Results obtained showed that the surface of small sEVs reduced the incidence of DNA SSBs (P < 0.05), whereas that of large sEVs had no impact on the generation of SSBs (P > 0.05). The IC showed no protective effect against DNA oxidation (P > 0.05).</p><p><strong>Conclusions: </strong>Our results suggest that the surface of small sEVs, including the peripheral corona layer, may exert a protective function against alterations that are originated by oxidative mechanisms. In addition, our in vitro study opens path to detect, localize and quantify the protective effects against oxidation of extracellular vesicles derived from different fluids, elucidating their function in physiopathological states.</p>","PeriodicalId":9084,"journal":{"name":"Biological Research","volume":"58 1","pages":"14"},"PeriodicalIF":4.3,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11905505/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143613267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信