Cellular and molecular biology最新文献

{"title":"Increased expression of PDGFA and RAF1 in Tumor-derived exosomes in human colorectal cancer.","authors":"Somayeh Vafaei, Yuzhen Gao, Marzieh Naseri, Margot Zöller, Leili Saeednejad Zanjani, Razieh Karamzadeh, Hadi Ahmadi Amoli, Marzieh Ebrahimi, Zahra Madjd","doi":"10.14715/cmb/2025.71.3.1","DOIUrl":"https://doi.org/10.14715/cmb/2025.71.3.1","url":null,"abstract":"<p><p>The overexpression of tumor markers within Extracellular Vesicles (EVs), particularly in tumor-derived exosomes (TDEs), plays a pivotal role in metastasis in the context of colorectal cancer (CRC). Nonetheless, the precise role of EV content in CRC diagnosis and prognosis necessitates extensive validation through bioinformatics and clinical investigations. We explored molecular markers shared between TDEs and circulating tumor cells (CTCs) in the blood of cancer patients to identify candidate genes involved in metastasis. Common markers were analyzed in gene expression profiles of two studies (GSE31023 and GSE72577). The expression of candidate genes was assessed by RT-PCR in CTC, TDEs, and microvesicles (MVs), and was correlated with clinicopathological features. To further confirm, the expression of candidate genes was investigated in exosomes derived from the parental HT-29 colorectal cancer cell line (HT-29-EXOs), and cancer stem cells (CSCs) -enriched spheroids (CSC-EXOs) derived thereof.  Gene ontology (GO) analysis suggested platelet-derived growth factor A (PDGFA) and proto-oncogene, Serine/Threonine kinase Raf-1 (RAF1) as new CRC candidate markers in CTCs and TDEs. Expression of PDGFA (P=0.0086) and RAF1 (P=0.048) were upregulated in TDEs but significantly decreased (P=0.0001) in MVs. Furthermore, expression in CSC-EXOs (P=0.0004) was increased compared to HT-29-EXOs. PDGFA and RAF1 mRNA are higher in CSC-EXOs than in HT-29-EXOs, which correlates with higher expression in CSC than in the primary tumor. Notably, as no increase was observed in MVs, PDGFA and RAF1 mRNA appear to be actively recruited into TDE.</p>","PeriodicalId":9802,"journal":{"name":"Cellular and molecular biology","volume":"71 3","pages":"1-13"},"PeriodicalIF":1.5,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143954904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The disulfidptosis-related lncRNAs can predict survival and immunotherapy response accurately in endometrial carcinoma.","authors":"Lin Hong, Ya-Xing Fang, Tao Li, Yu-Feng He, Qin-Qin Jin, Xiao Xu, Shu-Guang Zhou","doi":"10.14715/cmb/2025.71.3.3","DOIUrl":"https://doi.org/10.14715/cmb/2025.71.3.3","url":null,"abstract":"<p><p>Endometrial cancer of the uterine corpus (ECUC) is a common malignancy among females. Disulfidptosis, a recently identified form of cellular death, is characterized by elevated SLC7A11 expression and limited glucose availability, making it a potential cancer treatment target. In this research, clinical data and transcriptome information from EC samples were accessed from the TCGA database. A disulfidptosis-related lncRNAs(DRLs) prognostic signature was developed by univariate/LASSO/multivariate regression analyses. Cellular pathways were identified through GO, KEGG, and GSEA analyses. Immune infiltration as well as tumor mutational burden (TMB) were evaluated. The TIDE algorithm and the GDSC database were utilized to predict how patients reacted to immunotherapy as well as anticancer drugs. Finally, the expressions of disulfidptosis-related lncRNAs were measured using RT-qPCR. Results: In this study, we identified 524 disulfidptosis-related lncRNAs and developed a prognostic signature consisting of five DRLs (AC022960.1, PRDX6-AS1, EMSLR, AL359715.3, AC103563.9). Our prognostic signature effectively stratified EC patients into high- and low-risk groups. Compared with the high-risk group, patients in the low-risk group exhibited better overall survival (OS). Additionally, ROC curves and concordance index (C-index) plots were used to assess the accuracy of our prognostic signature. The results demonstrated that the AUC values for 1-, 3-, and 5-year survival were 0.676, 0.712, and 0.722, respectively, indicating high predictive accuracy. Further analysis revealed significant differences between high- and low-risk groups in terms of TMB, drug sensitivity, and immune cell infiltration. PCR results showed that PRDX6-AS1, EMSLR, AL359715.3, and AC103563.9 were upregulated in EC cells, whereas AC022960.1 was downregulated. In conclusion, we developed a DRLs signature capable of predicting the TMB, prognosis, and immunological cell infiltration patterns, as well as the reactions to immunotherapy in EC patients.</p>","PeriodicalId":9802,"journal":{"name":"Cellular and molecular biology","volume":"71 3","pages":"20-30"},"PeriodicalIF":1.5,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143977991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of regular exercise on ocular inflammation and mitochondrial biogenesis in experimental Alzheimer's disease model.","authors":"Suleyman Okudan, Tuğba Sezer, Emine Tınkır Kayırbatmaz, Muaz Belviranli, Nilsel Okudan","doi":"10.14715/cmb/2025.71.3.14","DOIUrl":"https://doi.org/10.14715/cmb/2025.71.3.14","url":null,"abstract":"<p><p>This study investigates the effects of regular exercise on inflammation and mitochondrial biogenesis in the eye using a controlled experimental Alzheimer's disease (AD) model. Twenty-four male Wistar rats were divided into four groups: control, Alzheimer, exercise, and Alzheimer with exercise. Molecular markers, including Nuclear Factor Kappa B (NF-κB), Fibronectin Type III Domain-Containing Protein 5 (FNDC5), Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-Alpha (PGC-1α), Sirtuin 1 (SIRT1) were analyzed through real-time quantitative reverse transcription-polymerase chain reaction (RT-PCR) Matrix Metalloproteinase 2 (MMP-2), and Interleukin-1 Beta (IL-1β) were analyzed enzyme-linked immunosorbent assay (ELISA)  to evaluate exercise-induced changes in inflammation and mitochondrial function. NF-κB levels were significantly elevated in the Alzheimer group, reflecting neuroinflammation, while exercise partially mitigated these effects. Exercise increased FNDC5, PGC-1α, and SIRT1 levels, suggesting a role in promoting neuroprotection and mitochondrial biogenesis. However, MMP-2 and IL-1β effects were primarily observed at the gene expression level, without substantial changes in protein levels. The use of an Alzheimer-specific model reduced confounding factors, such as age-related pathologies, providing a clearer perspective on Alzheimer-associated ocular changes. These findings highlight the potential of exercise in modulating key molecular pathways involved in AD.</p>","PeriodicalId":9802,"journal":{"name":"Cellular and molecular biology","volume":"71 3","pages":"117-123"},"PeriodicalIF":1.5,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143986511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of combined treatment with Sodium valproate and methylprednisolone on neurological recovery after experimental spinal cord injury.","authors":"Yakun Du, Jianwei Sun, Xinming Yang","doi":"10.14715/cmb/2025.71.3.2","DOIUrl":"https://doi.org/10.14715/cmb/2025.71.3.2","url":null,"abstract":"<p><p>The present study aimed to investigate the effect of Sodium valproate (VAP) combined with methylprednisolone (MP) on spinal cord injury (SCI), and its underlying mechanism. Following the establishment of the SCI model using SD mice, VPA treatment group: 8 hours after the establishment of SCI model, VAP (dissolved in normal saline) was injected intraperitoneally at a dose of 300 mg/kg for 30 days. MP treatment group: 30min, 6 and 24 hours after successful establishment of SCI model, MP (dissolved in normal saline) was injected intraperitoneally at a dose of 30 mg/kg. Behavioral tests, Nissl staining, and H&E staining were employed to assess motor function recovery and neuronal cell death. Western blot was used to assess the apoptosis-associated proteins (Bcl-2, caspase-3, Bax). They showed VAP combined with MP can significantly improve the motor function of spinal cord and reduce neuronal death. Also, significant upregulation of Bcl-2 expressions, with the downregulation of Bax and caspase-3 expressions were found in the VAP combined with MP treated group. This study aims to explore the mechanism of VAP combined with MP in the treatment of SCI. The findings of this study the protective effect of MP combined with MP on SCI may be mediated by inhibition of NF- κ B signal pathway. These results demonstrate the therapeutic potential of VAP combined with MP in SCI.</p>","PeriodicalId":9802,"journal":{"name":"Cellular and molecular biology","volume":"71 3","pages":"14-19"},"PeriodicalIF":1.5,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143977185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring the antioxidant and enzyme inhibitory potential of the Streptomyces gobitri-cini strain: a promising biotechnological resource.","authors":"Areej Ali Alzahrani, Najeh Krayem, Mona Alonazi, Eman Al-Shehri, Latifa Aloteibi, Habib Horchani, Abir Ben Bacha","doi":"10.14715/cmb/2025.71.3.10","DOIUrl":"https://doi.org/10.14715/cmb/2025.71.3.10","url":null,"abstract":"<p><p>Streptomyces strains are renowned for their ability to produce a wide array of secondary metabolites, which play crucial roles in ecological interactions and have significant pharmaceutical applications. The optimization of culture conditions is a key factor in maximizing the production of these bioactive compounds. This study investigated the growth patterns and bioactivity of a newly isolated Streptomyces gobitricini cultured on different media: R5, R5E, R2YE, and YEME. Data showed that R5 and R2YE media supported higher biomass accumulation, achieving peak dry weights of 225 mg/L and 175 mg/L, respectively, after 96 h-incubation, compared to R5E (52 mg/L) and YEME (48 mg/L). Growth phases, especially the exponential phases, were longer and more pronounced in nutrient-rich media like R5 and R2YE. Furthermore, the inherent antioxidant activities, enzyme inhibitory properties against α-amylase, α-glucosidase, lipase, and trypsin, as well as secreted phospholipase A2, cyclooxygenases and lipooxygenase, showed significant variations influenced by the growth media, with R5 exhibiting the highest overall bioactivity. Specifically, R2YE extracts demonstrated potent inhibitory effects on α-glucosidase and phospholipases, while YEME showed promising lipase inhibition. These findings emphasized the critical role of media composition in promoting secondary metabolite production in S. gobitricini, ultimately enhancing its potential medicinal applications for several human diseases such as obesity and inflammation. Consequently, optimizing bacterial culture conditions could significantly improve yield and efficiency of bioactive compounds.</p>","PeriodicalId":9802,"journal":{"name":"Cellular and molecular biology","volume":"71 3","pages":"76-87"},"PeriodicalIF":1.5,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143968451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molecular signatures of endodontitis and pulpal inflammation: a comprehensive gene expression and multi-parameter analysis using GSE77459 microarray data.","authors":"Nezar Boreak","doi":"10.14715/cmb/2025.71.3.12","DOIUrl":"https://doi.org/10.14715/cmb/2025.71.3.12","url":null,"abstract":"<p><p>Pulpal inflammation remains a significant endodontic challenge requiring improved molecular understanding for effective diagnosis and treatment. Current diagnostic methods largely depend on clinical assessments, necessitating molecular-level insights. This study aimed to analyze comprehensive gene expression profiles in pulpitis to identify potential diagnostic markers and understand underlying molecular mechanisms. We analyzed the GSE77459 dataset from Gene Expression Omnibus, comprising twelve pulpal tissue samples (six irreversible pulpitis and six normal controls). Gene expression profiling was performed using Affymetrix GeneTitan Multichannel Instrument. Pain assessment utilized visual analog scale (VAS) readings, with values >30mm indicating moderate to severe pain. Differential gene expression analysis was conducted using GEO2R, implementing a false discovery rate of 5%. Statistical significance was evaluated through adjusted p-values, log2 fold changes, and comprehensive visualization techniques including Volcano plots, Mean-Difference plots, and UMAP analysis. The analysis identified significant expression changes between inflamed and normal pulp tissues. Three genes showed notable upregulation: SNORD113-3 (log2FC: +0.71), RN5S290 (log2FC: +0.70), and SH3GL2 (log2FC: +0.67). Key downregulated genes included IGHV3-72 (log2FC: -1.66), IGKV1-5 (log2FC: -1.57), and IGHD (log2FC: -1.57). UMAP analysis revealed distinct clustering patterns between disease and control samples, while maintaining proximal positioning, indicating subtle yet consistent transcriptional differences. Statistical analysis showed that 62% of differentially expressed genes had significant adjusted p-values (<1e-8), with 25% exhibiting absolute log2FC values >1.2. This study reveals specific molecular signatures associated with pulpal inflammation, particularly highlighting the downregulation of immunoglobulin-related genes and upregulation of RNA processing factors. These findings provide potential molecular markers for pulpitis diagnosis and suggest new directions for therapeutic interventions in endodontic treatment.</p>","PeriodicalId":9802,"journal":{"name":"Cellular and molecular biology","volume":"71 3","pages":"101-109"},"PeriodicalIF":1.5,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143985863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Role of Toxoplasma surface proteins in host-parasite immune modulation.","authors":"Hawri Mustafa Bakr","doi":"10.14715/cmb/2025.71.3.17","DOIUrl":"https://doi.org/10.14715/cmb/2025.71.3.17","url":null,"abstract":"<p><p>Toxoplasma gondii is an intracellular parasite that evades the host immune system using its surface proteins. These proteins, including SAGs, MICs, and GRA, regulate host immune responses by interacting with immune receptors, modifying immune signaling pathways, and suppressing inflammatory responses. This modulation allows the parasite to survive and replicate within host cells. The study employed various biochemical and immunological methods, such as ELISA, flow cytometry, RT-PCR, Surface Plasmon Resonance (SPR), and co-immunoprecipitation (Co-IP), to assess the effects of these surface proteins on immune responses. Results showed that Toxoplasma surface proteins reduced the production of inflammatory cytokines (e.g., TNF-α) and increased anti-inflammatory cytokines (e.g., IL-10). SPR analyses confirmed direct interactions between parasite proteins and host immune receptors, altering immune-related signaling pathways. These findings emphasize the significant role of Toxoplasma surface proteins in suppressing the immune system and promoting parasite survival and replication. A deeper understanding of these mechanisms could aid in developing new therapeutic strategies and vaccines against toxoplasmosis. Future research could focus on identifying additional signaling pathways and creating targeted interventions.</p>","PeriodicalId":9802,"journal":{"name":"Cellular and molecular biology","volume":"71 3","pages":"146-150"},"PeriodicalIF":1.5,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143978385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unveiling the therapeutic potential: anti-inflammatory and antioxidant properties of selective medicinal plants.","authors":"Najeh Krayem, Farah Jribi, Mona Alonazi, Musarat Amina, Habib Horchani, Aida Karray, Slim Cherif, Abir Ben Bacha","doi":"10.14715/cmb/2025.71.3.11","DOIUrl":"https://doi.org/10.14715/cmb/2025.71.3.11","url":null,"abstract":"<p><p>This study highlights the potential of plant extracts as sustainable and cost-effective alternatives to traditional anti-inflammatory drugs, owing to their rich bioactive compounds. The chemical composition and biological activities of ethanolic extracts from Artemisia campestris, Haloxylon articulatum, and Retama raetam were investigated. Extraction yields ranged from 2.94% to 6.84%, with A. campestris showing the highest phenolic content (85.59 ± 2.4 mg GAE/g) and R. raetam having the highest flavonoid concentration (34.77 ± 3.09 mg CE/g). HPLC analysis identified therapeutic phenolic and flavonoid compounds, including sinapic, quinic, and caffeic acids in A. campestris, p-coumaric acid in H. articulatum, and salicylic acid in R. raetam. Antimicrobial tests revealed that Gram-positive bacteria like Staphylococcus aureus and Bacillus cereus were sensitive to the extracts, though Gram-negative strains were unaffected. Antifungal activity was limited, with only H. articulatum showing inhibition of Rhizoctonia solani. Strong antioxidant activities were noted, particularly in H. articulatum and R. raetam extracts (IC50 = 130 µg/mL). In anti-inflammatory assays, all extracts exhibited dose-dependent inhibition of enzymes linked to inflammation, including COX-1, COX-2, 5-LOX, and sPLA2. A. campestris demonstrated the most potent inhibition, reaching 100% inhibition of sPLA2 at 200 μg/mL, while A. campestris and R. raetam provided significant protection in human red blood cell membrane stabilization assays. These results suggest that these plant extracts have considerable biological potential, especially in enzyme inhibition related to inflammation, making them promising candidates for future therapeutic use.</p>","PeriodicalId":9802,"journal":{"name":"Cellular and molecular biology","volume":"71 3","pages":"88-100"},"PeriodicalIF":1.5,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143954549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of traction force during surgery on physical integrity and histological changes in peripheral nerves: experimental study on rabbits.","authors":"Rebwar Hassan Mohammed, Khurshid A Kheder Khrwatany, Snur Mohammad Amin Hassan","doi":"10.14715/cmb/2025.71.2.3","DOIUrl":"10.14715/cmb/2025.71.2.3","url":null,"abstract":"<p><p>Sensory and motor nerve damage is a common complication of maxillofacial surgery and trauma. Procedures such as orthognathic surgery, tumor resection, and salivary gland interventions can damage peripheral nerves when the surrounding soft tissue or the nerve itself is manipulated. The purpose of this study was to evaluate the histological changes in the sciatic and median nerves of albino rabbits following traction-induced nerve injury. Nine albino rabbits were included in the study and divided equally into three groups, with three rabbits per group. In each rabbit, four peripheral nerves were exposed: the right and left sciatic nerves and the right and left median nerves. In Group A, varying traction forces (0.5 N, 1 N, 1.5 N, and a control of 0 N) were applied to each nerve for 5 minutes. The same traction forces used in Group A were applied to Groups B and C for 10 minutes and 15 minutes, respectively. Nerve fiber abnormalities, as well as damage to the axons, myelin sheath, and connective tissue layers, were assessed through histological examination. Histopathological evaluation of the injured nerves revealed Grade I and Grade II nerve injuries in Group A, while Grade IV and Grade V nerve injuries were noted in Groups B and C, respectively, based on the criteria established by the histopathologist.</p>","PeriodicalId":9802,"journal":{"name":"Cellular and molecular biology","volume":"71 2","pages":"15-20"},"PeriodicalIF":1.5,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143457014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Long non-coding RNA LINC00520 promotes malignant progression of gastric adenocarcinoma through miR-519b-3p/HIF1A axis.","authors":"Jie An, Yunfeng Niu, Wei Liu","doi":"10.14715/cmb/2025.71.2.5","DOIUrl":"10.14715/cmb/2025.71.2.5","url":null,"abstract":"<p><p>Gastric cancer is a prevalent malignant tumor, characterized by high morbidity and mortality rates globally. Long non-coding RNAs (lncRNAs), a class of transcripts exceeding 200 nucleotides in length, are non-protein-coding molecules that exert crucial regulatory functions in cellular biology. Investigating the regulatory mechanisms of lncRNAs in gastric cancer is essential. This study aimed to elucidate the functional role and molecular mechanisms of LINC00520 in gastric cancer. Initially, the GEO database was screened for differentially expressed genes associated with the malignant progression of gastric cancer. Quantitative reverse transcription polymerase chain reaction (qRT-PCR) was utilized to ascertain the LINC00520 expression in gastric cancer tissues. Subsequently, cellular functional assays were conducted to investigate the potential effects of LINC00520 on cellular behavior. The interaction between LINC00520, miR-519b-3p, and HIF1A was examined through bioinformatics analysis, and their binding interactions were confirmed using dual-luciferase reporter gene assays and RNA immunoprecipitation (RIP) assays. Our findings revealed a marked increase in the LINC00520 expression in gastric cancer tissues. Overexpression of LINC00520 was observed to enhance the malignant progression of gastric cancer cells. Through bioinformatics analysis, dual-luciferase reporter assays, and RIP assays, we demonstrated that LINC00520 upregulated HIF1A expression by competitively binding to miR-519b-3p, thereby acting as a molecular sponge. In conclusion, this study indicates that LINC00520, which is highly expressed in gastric cancer, exerts its effects by targeting the miR-519b-3p/HIF1A axis. These insights provide a foundation for developing diagnostic and therapeutic strategies for gastric cancer.</p>","PeriodicalId":9802,"journal":{"name":"Cellular and molecular biology","volume":"71 2","pages":"28-35"},"PeriodicalIF":1.5,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143456965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}