Long Non-coding RNA SNHG12 Functions as a Competing Endogenous RNA to Regulate MDM4 Expression by Sponging miR-129-5p...

Area of Science:

• Oncology
• Molecular Biology
• Genetics

Background:

• Clear cell renal cell carcinoma (ccRCC) is the most common kidney cancer subtype with poor prognosis.
• Current treatments for ccRCC often show limited efficacy.
• The role of long non-coding RNA small nucleolar RNA host gene 12 (SNHG12) in ccRCC pathogenesis is not well understood.

Purpose of the Study:

• To investigate the role of SNHG12 in the development of ccRCC.
• To elucidate the molecular mechanism underlying SNHG12's function in ccRCC.

Main Methods:

• Analysis of TCGA and ICGC databases for SNHG12 expression.
• Quantitative real-time PCR and mRNA microarray in ccRCC tissues and cell lines.
• Functional assays (viability, mobility) following SNHG12 inhibition.
• Dual luciferase and RNA immunoprecipitation (RIP) assays to confirm SNHG12-miR-129-5p interaction.
• Bioinformatic prediction and experimental validation of miR-129-5p target genes (MDM4).

Main Results:

• SNHG12 was significantly overexpressed in ccRCC tissues and cell lines compared to normal controls.
• Inhibition of SNHG12 reduced ccRCC cell viability and mobility.
• SNHG12 directly binds to miR-129-5p, exhibiting a negative correlation.
• MDM4 was identified as a target gene of miR-129-5p within a ceRNA network involving SNHG12.

Conclusions:

• SNHG12 acts as a molecular sponge for miR-129-5p in ccRCC.
• This interaction influences the expression of MDM4 and modulates the p53 signaling pathway.
• SNHG12 plays a crucial role in ccRCC progression and may represent a therapeutic target.