Objective:Cancer/testis antigen FMR1NB is aberrantly expressed in various types of cancer,but not in normal tissues except for testis.This study aimed to investigate the expression and functional role of FMR1NB in gli...Objective:Cancer/testis antigen FMR1NB is aberrantly expressed in various types of cancer,but not in normal tissues except for testis.This study aimed to investigate the expression and functional role of FMR1NB in glioma.Methods:The expression of FMR1NB mRNA and protein was determined using RT-PCR and immunohistochemistry,respectively,in glioma specimens from 83 patients at follow-up.The effects of siRNA-mediated FMR1NB silencing on malignant biological behaviors were evaluated in glioma cell lines Al 72 and U251.Results:FMR1NB mRNA and protein expression was detected in 58.8%(77/131)and 46.34%(57/123)of glioma tissues,respectively.FMR1NB protein was positively correlated with World Health Organization grade and found to be an independent prognostic marker for poor outcome.Knockdown of FMR1NB induced apoptosis and suppressed proliferation,adhesion,migration,and invasion by modulating the expression of cyclin A,CDK2,caspase-3,E-cadherin,and N-cadherin in A172 and U251 cells.Conclusion:Our findings suggest that FMR1NB contributes to the tumorigenesis of glioma cells and may represent a potential prognostic biomarker and an attractive therapeutic target in glioma.展开更多
基金supported by grants from the National Natural Science Foundation of China(No.81960453,No.81860445)Natural Science Foundation of Guangxi Province(No.2022GXNSFAA035639,No.2018GXNSFAA281050,No.2018GXNSFAA050151)+1 种基金Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor(Guangxi Medical University)and Ministry of Education(No.GK2018-09,No.GKE 2019-08,No.GKEZZ202006)Guangxi First-class Discipline Construction Projectin Basic Medical Sciences(No.GXMUBMSTC-T07,No.GXMUBMSTCF-G04).
文摘Objective:Cancer/testis antigen FMR1NB is aberrantly expressed in various types of cancer,but not in normal tissues except for testis.This study aimed to investigate the expression and functional role of FMR1NB in glioma.Methods:The expression of FMR1NB mRNA and protein was determined using RT-PCR and immunohistochemistry,respectively,in glioma specimens from 83 patients at follow-up.The effects of siRNA-mediated FMR1NB silencing on malignant biological behaviors were evaluated in glioma cell lines Al 72 and U251.Results:FMR1NB mRNA and protein expression was detected in 58.8%(77/131)and 46.34%(57/123)of glioma tissues,respectively.FMR1NB protein was positively correlated with World Health Organization grade and found to be an independent prognostic marker for poor outcome.Knockdown of FMR1NB induced apoptosis and suppressed proliferation,adhesion,migration,and invasion by modulating the expression of cyclin A,CDK2,caspase-3,E-cadherin,and N-cadherin in A172 and U251 cells.Conclusion:Our findings suggest that FMR1NB contributes to the tumorigenesis of glioma cells and may represent a potential prognostic biomarker and an attractive therapeutic target in glioma.
