Circ_0007351 Exerts an Oncogenic Role In Colorectal Cancer Depending on the Modulation of the miR-5195-3p/GPRC5A...

Area of Science:

• Oncology
• Molecular Biology
• Genetics

Background:

• Circular RNAs (circRNAs) play significant roles in the development of colorectal cancer.
• Understanding the specific functions and regulatory mechanisms of individual circRNAs is crucial for targeted therapies.

Purpose of the Study:

• To investigate the functional role of circ_0007351 in colorectal cancer.
• To elucidate the regulatory mechanism involving circ_0007351, microRNA-5195-3p (miR-5195-3p), and G Protein-coupled receptor class C group 5 member A (GPRC5A).

Main Methods:

• Quantitative real-time PCR (qRT-PCR), immunoblotting, and immunohistochemistry were used for quantification.
• Cell viability, proliferation, colony formation, motility, and invasion assays assessed functional effects.
• Dual-luciferase reporter assays and animal xenograft studies were employed to validate mechanisms and in vivo function.

Main Results:

• Circ_0007351 was significantly upregulated in colorectal cancer tissues and cells.
• Downregulation of circ_0007351 suppressed colorectal cancer cell growth, migration, invasion, and xenograft tumor growth.
• Circ_0007351 acts as a sponge for miR-5195-3p, which targets GPRC5A, thus regulating GPRC5A expression.

Conclusions:

• Circ_0007351 promotes colorectal cancer progression by sponging miR-5195-3p and upregulating GPRC5A.
• Inhibition of circ_0007351 impedes cancer cell proliferation, motility, and invasiveness.
• Circ_0007351 targeting presents a potential therapeutic strategy for colorectal cancer treatment.