Anticancer research · 2024
p35/CDK5 Regulates Bladder Cancer Proliferation and Migration and Promotes Higher Tumor Grade and Poor Survival Rate in Patients With Bladder Cancer.
СтатьяНазвание и аннотация: Перевод в очереди
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Oner Muhammet, Lin Eugene, Chiu Kun-Yuan, Chen Mei-Chih, Prince G M Shazzad Hossain, Lai Chih-Ho, Hsieh Jer-Tsong, Wang Hsin-Yi, Lin H O
Аннотация
BACKGROUND/AIM: Bladder cancer remains a significant global health concern, necessitating a deeper understanding of the molecular mechanisms underlying its progression. Cyclin-Dependent Kinase 5 (CDK5) has recently emerged as a potential player in bladder cancer pathogenesis. This study investigated the involvement of CDK5 in bladder cancer, emphasizing its potential as a therapeutic target.
MATERIALS AND METHODS: The expression levels of CDK5 and p35 (CDK5 regulatory protein) and their roles in the tumor grade and malignancy of patient samples were evaluated using western blot analysis and immunohistochemistry. In addition, tumor cancer genome atlas (TCGA) was utilized to evaluate survival rate in patients with bladder cancer. We further confirmed the role of CDK5 with in vitro experiments using western blot analysis, immunocytochemistry, cell culture-based proliferation and migration assays.
RESULTS: Higher CDK5 and p35 were associated with a higher tumor grade and poor survival rate in patients with bladder cancer. To confirm the role of CDK5 in vitro, we over-expressed CDK5 in bladder cancer cells. The results showed that the over-expression of CDK5 enhanced bladder cancer cell proliferation and migration. In addition, CDK5 inhibition by a pan-CDK inhibitor, Roscovitine (RV), significantly reduced proliferation of bladder cancer cells. Indeed, the migration and adhesion of bladder cancer cells were inhibited by RV treatment.
CONCLUSION: CDK5 might play important roles in bladder cancer progression and be a potential diagnostic and therapeutic target in the near future.
MATERIALS AND METHODS: The expression levels of CDK5 and p35 (CDK5 regulatory protein) and their roles in the tumor grade and malignancy of patient samples were evaluated using western blot analysis and immunohistochemistry. In addition, tumor cancer genome atlas (TCGA) was utilized to evaluate survival rate in patients with bladder cancer. We further confirmed the role of CDK5 with in vitro experiments using western blot analysis, immunocytochemistry, cell culture-based proliferation and migration assays.
RESULTS: Higher CDK5 and p35 were associated with a higher tumor grade and poor survival rate in patients with bladder cancer. To confirm the role of CDK5 in vitro, we over-expressed CDK5 in bladder cancer cells. The results showed that the over-expression of CDK5 enhanced bladder cancer cell proliferation and migration. In addition, CDK5 inhibition by a pan-CDK inhibitor, Roscovitine (RV), significantly reduced proliferation of bladder cancer cells. Indeed, the migration and adhesion of bladder cancer cells were inhibited by RV treatment.
CONCLUSION: CDK5 might play important roles in bladder cancer progression and be a potential diagnostic and therapeutic target in the near future.