KLF8 is required for bladder cancer cell proliferation and migration

Area of Science:

• Oncology
• Molecular Biology
• Genetics

Background:

• Krüppel-like factor 8 (KLF8) is a transcription factor implicated in epithelial-mesenchymal transition and cancer metastasis.
• While KLF8 overexpression is noted in various cancers, its specific role in human bladder cancer is uncharacterized.

Purpose of the Study:

• To investigate the functional role of KLF8 in bladder cancer cell proliferation and migration.
• To evaluate the potential of KLF8 inhibition as a therapeutic strategy for bladder cancer.

Main Methods:

• Lentivirus-mediated small interfering RNA (siRNA) was used to specifically downregulate KLF8 expression in T24 and BT5637 bladder cancer cell lines.
• Cell proliferation, colony formation, cell cycle, and migration assays were performed.
• Expression levels of key proteins involved in epithelial-mesenchymal transition (vimentin, N-cadherin, β-catenin) were analyzed.

Main Results:

• KLF8 knockdown significantly inhibited bladder cancer cell proliferation and colony formation.
• KLF8 knockdown led to cell cycle arrest at the G0/G1 phase in T24 cells.
• Cell migration was markedly reduced following KLF8 knockdown.
• KLF8 inhibition decreased vimentin and N-cadherin expression while increasing β-catenin expression.

Conclusions:

• KLF8 plays a critical role in regulating the proliferation and migration of bladder cancer cells.
• Targeting KLF8 with siRNA presents a promising avenue for bladder cancer gene therapy.