MicroRNA-93 promotes bladder cancer proliferation and invasion by targeting PEDF

Area of Science:

• Oncology
• Molecular Biology
• Biochemistry

Background:

• Bladder cancer (BC) is a significant global health concern.
• MicroRNA-93 (miR-93) has been observed to be upregulated in BC patients' urine.
• The precise role and mechanism of miR-93 in BC progression require further elucidation.

Purpose of the Study:

• To investigate the role of miR-93 in bladder cancer (BC) progression.
• To explore the underlying molecular mechanisms by which miR-93 influences BC.
• To identify potential diagnostic and therapeutic targets for BC.

Main Methods:

• Quantitative real-time polymerase chain reaction (qRT-PCR) was used to measure miR-93 expression in BC tissues and cells.
• Cell proliferation was assessed using the MTT assay, and cell invasion was evaluated using Transwell assays.
• The interaction between miR-93 and pigment epithelium-derived factor (PEDF) was confirmed via luciferase reporter assays.

Main Results:

• miR-93 expression was significantly elevated in BC tissues compared to normal controls.
• Higher miR-93 levels correlated with advanced tumor and node stages in BC patients.
• Inhibition of miR-93 notably reduced BC cell proliferation and invasion.
• Pigment epithelium-derived factor (PEDF) was identified as a direct target of miR-93, mediating its effects on cell behavior.

Conclusions:

• miR-93 promotes bladder cancer cell proliferation and invasion through the targeting of PEDF.
• These findings highlight miR-93 as a potential biomarker for BC diagnosis.
• Targeting the miR-93/PEDF pathway presents a promising therapeutic strategy for bladder cancer.