Overexpression of Klotho gene using CRISPR/Cas9 induces apoptosis and inhibits cell motility in the human colorectal...

Area of Science:

• Oncology
• Molecular Biology
• Gene Editing

Background:

• Colorectal cancer remains a significant cause of cancer mortality despite treatment advances.
• The klotho (KL) gene is implicated in the development and progression of colorectal cancer.

Purpose of the Study:

• To investigate the role of the klotho (KL) gene in colorectal cancer.
• To explore the utility of the CRISPR/Cas9 system for manipulating KL gene expression in colorectal cancer cells.

Main Methods:

• CRISPR/Cas9 gene editing was employed to overexpress and knockout (KO) the KL gene in Caco-2 human colorectal cancer cells.
• Gene expression analysis, flow cytometry, scratch wound closure assays, colony formation assays, and immunofluorescence staining were used to assess cellular effects.

Main Results:

• Overexpression of the KL gene significantly increased apoptosis and decreased cell motility in colorectal cancer cells.
• Knockout of the KL gene resulted in opposite effects, promoting cell motility and potentially inhibiting apoptosis.
• CRISPR/Cas9 system proved effective for targeted gene manipulation in this cancer model.

Conclusions:

• The klotho (KL) gene plays a crucial role in regulating colorectal cancer cell behavior, including apoptosis and motility.
• KL gene activation presents a potential novel therapeutic strategy for colorectal cancer.
• The KL gene may serve as a valuable biomarker for colorectal cancer research and treatment.