1.Advances in pharmacological research for retinopathy of prematurity.
Yanxi XIE ; Suilian ZHENG ; Hui YANG
Journal of Zhejiang University. Medical sciences 2025;54(3):411-421
Retinopathy of prematurity (ROP) is a proliferative retinal vascular disease that threatens the vision of premature infants. Various novel drugs have demonstrated therapeutic potential for ROP by targeting signaling pathways associated with vascular endothelial growth factor (VEGF) [such as PI3K/AKT, hypoxia-inducible factor (HIF)-1α/VEGF], oxidative stress, tumor necrosis factor (TNF)-α, and Notch pathways. Propranolol, insulin-like growth factor-1, and celecoxib attenuate pathological neovascularization via the PI3K/Akt signaling pathway. Tripterine and melatonin inhibit retinal neovascularization by modulating the HIF-1α/VEGF signaling axis. Adiponectin mitigates the damage caused by oxidative stress and preserves endothelial function by enhancing endothelial nitric oxide synthase activity. Omega-3 polyunsaturated fatty acids suppress TNF-α-mediated inflammatory responses, modulate retinal development and angiogenesis, and reduce retinal neovascular lesions. DAPT, a γ-secretase inhibitor, blocks Notch signaling to suppress abnormal vascular proliferation. These agents exhibit synergistic multi-pathway anti-angiogenic effects in preclinical models and early-phase clinical trials, offering critical insights for advancing drug development and clinical translation in ROP management.
Retinopathy of Prematurity/metabolism*
;
Humans
;
Signal Transduction/drug effects*
;
Infant, Newborn
;
Vascular Endothelial Growth Factor A/metabolism*
;
Hypoxia-Inducible Factor 1, alpha Subunit/metabolism*
;
Tumor Necrosis Factor-alpha/metabolism*
;
Oxidative Stress/drug effects*
;
Fatty Acids, Omega-3/therapeutic use*
;
Phosphatidylinositol 3-Kinases/metabolism*
;
Proto-Oncogene Proteins c-akt/metabolism*
;
Receptors, Notch/metabolism*
;
Angiogenesis Inhibitors/therapeutic use*
;
Insulin-Like Growth Factor I/therapeutic use*
2.Gene Mutation Characteristics, Prognosis and Survival Analysis of Patients with Acute Myeloid Leukemia.
Miao HE ; Hong-Juan TIAN ; Dong-Feng MAO ; Xiao-Chen ZHAO ; Shu-Ting ZHANG ; Fang-Qing ZHAO ; Tao WU
Journal of Experimental Hematology 2025;33(3):691-697
OBJECTIVE:
To analyze the gene mutation characteristics and survival time of patients with newly diagnosed acute myeloid leukemia (AML) based on next-generation sequencing(NGS) gene detection.
METHODS:
A retrospective analysis was conducted on the clinical data of 92 patients with AML (non APL) admitted to our hospital from January 2018 to May 2022. AML related genes tested were using NGS, the mutation characteristics and survival time of AML patients were analyzed.
RESULTS:
Among the 92 patients, 41 were males and 51 were females. A total of 38 types of gene mutations were detected. Six-two patients carried at least one gere mutation, while no gene mutations were detected in 30 patients. In the group with favourable prognosis (<i>ni> =14), the frequencies of higher gene mutations were <i>NRAS, KITi> (21.43%, <i>ni> =3), <i>KRASi> (14.29%, <i>ni> =2). In the group with intermediate prognosis (<i>ni> =64), the gene mutation frequencies from high to low were <i>DNMT3Ai> (18.75%, <i>ni> =12), <i>NPM1i> (17.19%, <i>ni> =11), <i>IDH2, FLT3-ITD, CEBPAi> (12.50%, <i>ni> =8), <i>TET2i> (10.94%, <i>ni> =7). In the poor prognosis group (<i>ni> =14), <i>ASXL1, TP53, EZH2, NRASi> had higher gene mutation frequency than others(14.29 %, <i>ni> =2 ). Statistical analysis revealed that <i>KITi> had a relative hotspot of mutations in the intermediate-risk group, and <i>DNMT3Ai> had a relative hotspot of mutations in the high-risk group (<i>Pi> < 0.05). The correlation analysis of genes with high mutation rates in different prognostic groups, such as <i>NRAS, KIT, IDH2, DNMT3A, NPM1i>, and <i>FLT3-ITDi>, with prognosis found that <i>KITi> was a factor affecting OS (<i>Pi> < 0.05), while no significant differences were observed for the others(<i>Pi> >0.05).
CONCLUSION
The frequency of gene mutations is high in AML patients, 67.4% of the patients carried at least one gene mutation. The mutation frequency varies among different genes in patients with different karyotypes, and there are obvious dominant mutations. <i>KITi> and <i>DNMT3Ai> can be used as factors for evaluating the prognosis of AML.
Humans
;
Leukemia, Myeloid, Acute/genetics*
;
Nucleophosmin
;
Mutation
;
Prognosis
;
Retrospective Studies
;
Male
;
Female
;
High-Throughput Nucleotide Sequencing
;
Middle Aged
;
DNA Methyltransferase 3A
;
Adult
;
Aged
;
Survival Analysis
;
Proto-Oncogene Proteins c-kit/genetics*
3.Expert Consensus on Diagnosis and Treatment of NSCLC with MET Abnormalities (2025 Version).
Jun CHEN ; Baohui HAN ; Yi HU ; Jian HU
Chinese Journal of Lung Cancer 2025;28(2):81-94
The mesenchymal-epithelial transition factor (MET) gene, located on human chromosome 7, plays a crucial role in the regulation of physiological processes such as cell proliferation, migration, invasion, and angiogenesis. The MET gene is one of the key drivers in non-small cell lung cancer (NSCLC), with various forms of abnormalities including MET exon 14 (METex14) skipping mutations, MET gene amplification, MET fusions, MET protein overexpression, MET activating mutations and etc. With an increasing understanding of the mechanisms underlying MET abnormalities, therapeutic strategies targeting these abnormalities have gained significant attention, and numerous studies have confirmed that NSCLC patients with MET abnormalities can derive substantial benefits from such treatments. Lung Cancer Specialty Committee of Chinese Elderly Health Care Association organized a panel of experts to provide professional recommendations on current clinical issues in the diagnosis and treatment of MET-aberrant NSCLC, combining clinical practice experiences and evidence-based medical evidences. The "Expert Consensus on Diagnosis and Treatment of NSCLC with MET Abnormalities (2025 Version)" has been formulated to provide standardized guidances for clinical practice in China, with the aim of optimizing the treatment outcomes.
.
Humans
;
Carcinoma, Non-Small-Cell Lung/drug therapy*
;
Lung Neoplasms/drug therapy*
;
Proto-Oncogene Proteins c-met/metabolism*
;
Consensus
;
Mutation
4.Advances in Targeted Therapy for Advanced Non-small Cell Lung Cancer with HER2 Mutation.
Chinese Journal of Lung Cancer 2025;28(8):612-620
Human epidermal growth factor receptor 2 (HER2) mutations play a role as a driver gene in non-small cell lung cancer (NSCLC). Patients with advanced NSCLC harboring HER2 mutations exhibit poor responses to conventional chemotherapy and immunotherapy, hence targeted therapies against HER2 are under extensive investigation. This review analyzes the biological characteristics of HER2, an overview of clinical trials for targeted therapy drugs, including monoclonal antibodies, tyrosine kinase inhibitors (TKIs), and antibody-drug conjugate, and research directions for drug resistance in NSCLC. Currently, Pyrotinib and Trastuzumab deruxtecan have been approved for the treatment of advanced NSCLC with HER2 mutations, suitable for patients who have failed standard therapy, which is far from meeting the clinical demands. Novel selective HER2 TKIs are gradually emerging. Future exploration trends are gradually shifting from single drugs to combination strategies, and are exploring more precise selection strategies as well as research on resistance mechanisms. These studies will provide a theoretical basis for clinical treatment strategies for advanced NSCLC with HER2 mutations, promoting the development of personalized therapy.
.
Humans
;
Carcinoma, Non-Small-Cell Lung/pathology*
;
Lung Neoplasms/pathology*
;
Receptor, ErbB-2/metabolism*
;
Mutation
;
Molecular Targeted Therapy
;
Protein Kinase Inhibitors/therapeutic use*
;
Antineoplastic Agents/therapeutic use*
5.Impact of concurrent use of goserelin on the efficacy of neoadjuvant chemotherapy in young breast cancer patients.
Miaoyu LIU ; Siyuan WANG ; Lin PEI ; Shu WANG
Journal of Peking University(Health Sciences) 2025;57(2):291-297
OBJECTIVE:
To explore the effect of concurrent administration of goserelin for ovarian function protection on the pathological complete response (pCR) rate and objective response rate (ORR) of neoadjuvant chemotherapy (NAC) in young breast cancer patients.
METHODS:
The study enrolled breast cancer patients aged 18-45 with clinical stages ⅡA~ⅢC from January 2016 to May 2020. According to patients' willingness, they were divided into two groups: Those who chose to receive goserelin to protect ovarian function during NAC (goserelin group) and those who did not (chemotherapy group). The pCR rate and ORR were compared between the two groups, and subgroup analysis was conducted for patients with different molecular subtypes.
RESULTS:
A total of 93 patients were included in this study (31 in the goserelin group and 62 in the chemotherapy group). After propensity score weighting (PSW) adjustment, baseline data such as age, preoperative clinical stage, postoperative pathological stage, pa-thological type, hormone receptor status, human epidermal growth factor receptor 2 (HER2) and Ki-67 expression, molecular subtypes, and chemotherapy regimens were well-matched between the two groups. There was no significant difference in the pCR rate between the goserelin group and the chemotherapy group, with rates of 29.0% and 25.8%, respectively (<i>Pi>=0.741). Similarly, there was no significant difference in ORR between the two groups (90.3% <i>vsi>. 87.1%, <i>Pi>=0.746). Subgroup analysis revealed that among the patients with hormone receptor-positive tumors, there were no significant differences in pCR rate (6.3% <i>vsi>. 7.7%, <i>Pi>=0.852) or ORR (87.5% <i>vsi>. 82.1%, <i>Pi>=0.839) between the goserelin and chemotherapy groups. Among the patients with hormone receptor-negative tumors, there were also no significant differences in pCR rate (53.3% <i>vsi>. 56.5%, <i>Pi>=0.847) or ORR (93.3% <i>vsi>. 95.7%, <i>Pi>=0.975) between the two groups. One year after the completion of chemotherapy, the incidence of chemotherapy-induced amenorrhea (CIA) was significantly lower in the goserelin group compared with the chemotherapy group (9.5% <i>vsi>. 33.3%, <i>Pi>=0.036).
CONCLUSION
For young breast cancer patients with clinical stages of ⅡA~ⅢC, there was no statistical difference in pCR rate and ORR whether or not using goserelin during NAC. However, it is still necessary to expand the sample size and carry out a longer follow-up to evaluate the effect of goserelin on the long-term survival of young patients.
Humans
;
Goserelin/administration & dosage*
;
Female
;
Breast Neoplasms/pathology*
;
Neoadjuvant Therapy/methods*
;
Adult
;
Middle Aged
;
Young Adult
;
Adolescent
;
Chemotherapy, Adjuvant
;
Antineoplastic Combined Chemotherapy Protocols/therapeutic use*
;
Antineoplastic Agents, Hormonal/therapeutic use*
;
Treatment Outcome
;
Receptor, ErbB-2
6.Cinobufacini Inhibits Survival and Metastasis of Hepatocellular Carcinoma via c-Met Signaling Pathway.
Ya-Nan MA ; Xue-Mei JIANG ; Xi-Qi HU ; Ling WANG ; Jian-Jun GAO ; Hui LIU ; Fang-Hua QI ; Pei-Pei SONG ; Wei TANG
Chinese journal of integrative medicine 2025;31(4):311-325
OBJECTIVE:
To investigate the anti-tumor effects of cinobufacini (CINO) on hepatocellular carcinoma (HCC) induced by des-gamma-carboxy-prothrombin (DCP) and to uncover the underlying mechanisms.
METHODS:
The inhibitory effect of CINO on HCC cell proliferation was evaluated using the cell counting kit-8 method, and the apoptosis rate was quantified using flow cytometry. Immunofluorescence and Western blot analyses were used to investigate the differential expression of proteins associated with cell growth, apoptosis, migration, and invasion pathways after CINO treatment. The therapeutic potential of CINO for HCC was confirmed, and the possibility of combining cinobufacini with c-Met inhibitor for the treatment of primary HCC was further validated by in vivo experiments.
RESULTS:
Under the induction of DCP, CINO inhibited the activity of HCC cells, induced apoptosis, and inhibited migration and invasion. Upon the induction of DCP, CINO regulated c-Met activation and the activation of the phosphatidylinositol-3 kinase/protein kinase B (PI3K/AKT) and mitogen-activated protein kinase kinase/extracellular signal-regulated kinase (MEK/ERK) pathways. In a mouse model of HCC, CINO exhibited significant antitumor effects by inhibiting the phosphorylation of c-Met and the downstream PI3K/AKT and MEK/ERK pathways in tumor tissues.
CONCLUSIONS
CINO inhibited HCC cell growth, promoted apoptosis, and suppressed HCC cell invasion and migration by targeting c-Met and PI3K/AKT and MEK/ERK signaling pathways under DCP induction.
Carcinoma, Hepatocellular/drug therapy*
;
Proto-Oncogene Proteins c-met/metabolism*
;
Liver Neoplasms/drug therapy*
;
Signal Transduction/drug effects*
;
Animals
;
Humans
;
Cell Movement/drug effects*
;
Apoptosis/drug effects*
;
Cell Proliferation/drug effects*
;
Amphibian Venoms/therapeutic use*
;
Cell Line, Tumor
;
Neoplasm Metastasis
;
Cell Survival/drug effects*
;
Proto-Oncogene Proteins c-akt/metabolism*
;
Phosphatidylinositol 3-Kinases/metabolism*
;
Neoplasm Invasiveness
;
Mice, Inbred BALB C
;
Mice, Nude
;
Mice
;
Male
;
Bufanolides/therapeutic use*
;
Protein Precursors
;
Prothrombin
;
Biomarkers
7.Domestic research on extra-gastrointestinal stromal tumors: A ten-year review.
Shengjin WANG ; Feng SUN ; Xinghong WANG
Journal of Central South University(Medical Sciences) 2025;50(2):237-250
OBJECTIVES:
There is currently no consensus on whether extra-gastrointestinal stromal tumors (EGISTs) and gastrointestinal stromal tumors (GISTs) are the same type of tumor, and whether the diagnosis and treatment of EGISTs can directly replicate the current diagnostic and treatment standards for GISTs. This study aims to further elucidate the clinical and pathological characteristics, diagnosis, treatment, and prognosis of EGISTs by analyzing the research results of domestic scholars in the field of EGISTs in the past decade.
METHODS:
A review was conducted on original Chinese and English research articles published from 2013 to 2022 focusing on EGISTs. A descriptive approach was used to extract key information from the literature, including patient demographics, tumor location, tumor diameter, mitotic figures, risk stratification, immunohistochemical markers, cell type, and prognostic factors. The data were subjected to statistical analysis.
RESULTS:
A total of 12 articles containing 780 EGIST patients were included. The male-to-female incidence of EGISTs was 0.92꞉1. The most common sites of EGISTs were mesentery (30.96%), peritoneum or retroperitoneum (28.53%), omentum (20.32%), and pelvic cavity (12.52%). 52.77% of EGISTs had tumor diameters greater than 10 cm, and the proportions of EGISTs with nuclear fission patterns greater than 5/50 high power field (HPF) and greater than 10/50 HPF were 51.24% and 26.11%, respectively. The proportion of high-risk EGISTs was 79.05%. The positive rates of immune markers CD117, CD34, and DOG-1 in EGISTs were 82.3%, 69.0%, and 79.5%, respectively. The proportion of Ki-67 >5% was 49.2%, and the proportion of Ki-67 >10% was 24.8%. The proportions of EGISTs in spindle cells, epithelial cells, and mixed cells were 74.4%, 14.8%, and 13.1%, respectively. The diameter of the tumor, resection method, risk level, Ki-67 index, mitotic counts, presence of rupture/bleeding/necrosis/peripheral tissue invasion/recurrence and metastasis, as well as the use of imatinib treatment after surgery were important factors affecting the prognosis of EGISTs.
CONCLUSIONS
Current medical research is relatively well cognizant of GISTs with primary sites in the gastrointestinal tract. Compared with GISTs, EGISTs have large tumor diameters, high mitotic counts, a high percentage of high-risk grades, relatively unique molecular expression, and high aggressiveness. EGISTs differ from GISTs in clinicopathological characteristics. Whether EGISTs and GISTs share a common origin remains unclear. If they are distinct tumor entities, separate diagnostic and treatment guidelines for EGISTs should be established. If EGISTs are ultimately confirmed to be a special subtype of GISTs, then directly applying existing GIST-based standards to EGISTs may be inappropriate. A more scientific approach would involve subclassifying EGISTs based on anatomical location and then tailoring treatment strategies accordingly with reference to GIST guidelines.
Humans
;
Gastrointestinal Stromal Tumors/epidemiology*
;
Male
;
Female
;
Prognosis
;
Proto-Oncogene Proteins c-kit/metabolism*
8.Single-cell and spatial transcriptomic analysis reveals that an immune cell-related signature could predict clinical outcomes for microsatellite-stable colorectal cancer patients receiving immunotherapy.
Shijin YUAN ; Yan XIA ; Guangwei DAI ; Shun RAO ; Rongrong HU ; Yuzhen GAO ; Qing QIU ; Chenghao WU ; Sai QIAO ; Yinghua XU ; Xinyou XIE ; Haizhou LOU ; Xian WANG ; Jun ZHANG
Journal of Zhejiang University. Science. B 2025;26(4):371-392
Recent data suggest that vascular endothelial growth factor receptor inhibitor (VEGFRi) can enhance the anti-tumor activity of the anti-programmed cell death-1 (anti-PD-1) antibody in colorectal cancer (CRC) with microsatellite stability (MSS). However, the comparison between this combination and standard third-line VEGFRi treatment is not performed, and reliable biomarkers are still lacking. We retrospectively enrolled MSS CRC patients receiving anti-PD-1 antibody plus VEGFRi (combination group, <i>ni>=54) or VEGFRi alone (VEGFRi group, <i>ni>=32), and their efficacy and safety were evaluated. We additionally examined the immune characteristics of the MSS CRC tumor microenvironment (TME) through single-cell and spatial transcriptomic data, and an MSS CRC immune cell-related signature (MCICRS) that can be used to predict the clinical outcomes of MSS CRC patients receiving immunotherapy was developed and validated in our in-house cohort. Compared with VEGFRi alone, the combination of anti-PD-1 antibody and VEGFRi exhibited a prolonged survival benefit (median progression-free survival: 4.4 vs. 2.0 months, <i>Pi>=0.0024; median overall survival: 10.2 vs. 5.2 months, <i>Pi>=0.0038) and a similar adverse event incidence. Through single-cell and spatial transcriptomic analysis, we determined ten MSS CRC-enriched immune cell types and their spatial distribution, including naive CD4+ T, regulatory CD4+ T, CD4+ Th17, exhausted CD8+ T, cytotoxic CD8+ T, proliferated CD8+ T, natural killer (NK) cells, plasma, and classical and intermediate monocytes. Based on a systemic meta-analysis and ten machine learning algorithms, we obtained MCICRS, an independent risk factor for the prognosis of MSS CRC patients. Further analyses demonstrated that the low-MCICRS group presented a higher immune cell infiltration and immune-related pathway activation, and hence a significant relation with the superior efficacy of pan-cancer immunotherapy. More importantly, the predictive value of MCICRS in MSS CRC patients receiving immunotherapy was also validated with an in-house cohort. Anti-PD-1 antibody combined with VEGFRi presented an improved clinical benefit in MSS CRC with manageable toxicity. MCICRS could serve as a robust and promising tool to predict clinical outcomes for individual MSS CRC patients receiving immunotherapy.
Humans
;
Colorectal Neoplasms/drug therapy*
;
Male
;
Female
;
Immunotherapy
;
Middle Aged
;
Aged
;
Tumor Microenvironment/immunology*
;
Retrospective Studies
;
Microsatellite Instability
;
Transcriptome
;
Single-Cell Analysis
;
Programmed Cell Death 1 Receptor/immunology*
;
Gene Expression Profiling
;
Immune Checkpoint Inhibitors/therapeutic use*
;
Adult
;
Receptors, Vascular Endothelial Growth Factor/antagonists & inhibitors*
9.<i>Tuihuangi> Mixture improves α‑naphthylisothiocyanate-induced cholestasis in rats by inhibiting NLRP3 inflammasomes <i>viai> regulating farnesoid X receptor.
Zhengwang ZHU ; Linlin WANG ; Jinghan ZHAO ; Ruixue MA ; Yuchun YU ; Qingchun CAI ; Bing WANG ; Pingsheng ZHU ; Mingsan MIAO
Journal of Southern Medical University 2025;45(4):718-724
OBJECTIVES:
To study the therapeutic mechanism of <i>Tuihuangi> Mixture against cholestasis.
METHODS:
Forty-eight Wistar rats were randomized equally into blank group, model group, ursodeoxycholic acid group and <i>Tuihuangi> Mixture group. Except for those in the blank group, all the rats were given α‑naphthylisothiocyanate (ANIT) to establish rat models of cholestasis, followed by treatments with indicated drugs or distilled water. Serum levels of ALT, AST, ALP, γ-GT, TBA and TBIL of the rats were determined, and hepatic expressions IL-1β, IL-18, FXR, NLRP3, ASC, Caspase-1 and GSDMD were detected using q-PCR, ELISA or Western blotting. Histopathological changes of the liver tissues were observed using HE staining.
RESULTS:
The rat models of cholestasis had significantly increased serum levels of ALT, AST, ALP, γ-GT, TBA and TBIL with increased mRNA and protein expressions of IL-1β and IL-18, decreased protein and mRNA expressions of FXR, and increased protein expressions of NLRP3 and Caspase-1 and mRNA expressions of NLRP3, ASC, Caspase-1 and GSDMD in the liver tissue, showing also irregular arrangement of liver cells, proliferation of bile duct epithelial cells and inflammatory cells infiltration. Treatment of the rat models with <i>Tuihuangi> Mixture significantly decreased serum levels of ALT, AST, ALP, γ-GT, TBA and TBIL, lowered IL-1β and IL-18 and increased FXR protein and mRNA expressions, and reduced NLRP3, ASC, Caspase-1 and GSDMD proteins and NLRP3, ASC and Caspase-1 mRNA expressions in the liver tissue. <i>Tuihuangi> Mixture also significantly alleviated hepatocyte injury, bile duct epithelial cell proliferation and inflammatory cell infiltration in the liver of the rat models.
CONCLUSIONS
<i>Tuihuangi> Mixture can effectively improve cholestasis in rats possibly by inhibiting NLRP3 inflammatosome-mediated pyroptosis via regulating FXR.
Animals
;
NLR Family, Pyrin Domain-Containing 3 Protein
;
Rats
;
Receptors, Cytoplasmic and Nuclear/metabolism*
;
Cholestasis/drug therapy*
;
Rats, Wistar
;
Inflammasomes/metabolism*
;
1-Naphthylisothiocyanate
;
Drugs, Chinese Herbal/therapeutic use*
;
Male
;
Interleukin-18/metabolism*
;
Caspase 1/metabolism*
;
Interleukin-1beta/metabolism*
;
Liver/metabolism*
10.Apelin promotes proliferation, migration, and angiogenesis in bladder cancer by activating the FGF2/FGFR1 pathway.
Wei SU ; Houhua LAI ; Xin TANG ; Qun ZHOU ; Yachun TANG ; Hao FU ; Xuancai CHEN
Journal of Southern Medical University 2025;45(6):1289-1296
OBJECTIVES:
To investigate the role of apelin in regulating proliferation, migration and angiogenesis of bladder cancer cells and the possible regulatory mechanism.
METHODS:
GEO database was used to screen the differentially expressed genes in bladder cancer tissues and cells. Bladder cancer and paired adjacent tissues were collected from 60 patients for analysis of apelin expressions in relation to clinicopathological parameters. In cultured bladder cancer J82 cells and human umbilical vein endothelial cells (HUVECs), the effects of transfection with an apelin-overexpressing plasmid or specific siRNAs targeting apelin, fibroblast growth factor 2 (FGF2) and fibroblast growth factor receptor 1 (FGFR1) on proliferation and migration of J82 cells and tube formation in HUVECs were examined using plate cloning assay, Transwell assay, and angiogenesis assay; the changes in FGF2 expression and FGFR1 phosphorylation were detected using Western blotting.
RESULTS:
The expression level of apelin was significantly higher in bladder cancer tissues than adjacent tissues, and bladder cancer cell lines (T24 and J82) also expressed higher mRNA and protein levels of apelin than SV-HUC-1 cells. Apelin expression level in bladder cancer tissues was correlated with tumor invasion, distant metastasis and advanced TNM stages. Apelin knockdown significantly suppressed proliferation and migration of J82 cells and decreased the total angiogenic length of HUVECs. In contrast, apelin overexpression significantly promoted proliferation and migration and enhanced FGFR1 phosphorylation in J82 cells, and increased the total angiogenesis length in HUVECs, but this effects were effectively mitigated by transfection of the cells with FGF2 siRNA or FGFR1 siRNA.
CONCLUSIONS
High expression of apelin promotes J82 cell proliferation and migration and HUVEC angiogenesis by promoting activation of the FGF2/FGFR1 pathway.
Humans
;
Urinary Bladder Neoplasms/blood supply*
;
Receptor, Fibroblast Growth Factor, Type 1/metabolism*
;
Cell Proliferation
;
Cell Movement
;
Fibroblast Growth Factor 2/metabolism*
;
Neovascularization, Pathologic
;
Human Umbilical Vein Endothelial Cells
;
Cell Line, Tumor
;
Signal Transduction
;
Apelin
;
Intercellular Signaling Peptides and Proteins/genetics*
;
Female
;
Male
;
Angiogenesis

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