Mechanistic Insights into Radiation Resistance in Colorectal Cancer: Gene Exploration Study

TL;DR

This study identifies key genes involved in colorectal cancer progression and resistance to radiation therapy, offering insights for more effective personalized treatments.

Contribution

The study reveals the functional roles of BAMBI, GADD34, NFKBIA, and NFKBID in CRC progression and radiation resistance.

Findings

Silencing BAMBI, GADD34, NFKBIA, and NFKBID reduced CRC cell proliferation, migration, and invasion.

Knockdown of these genes increased radiation sensitivity and apoptosis in CRC cells.

The findings highlight potential molecular targets for improving radiotherapy outcomes in CRC.

Abstract

Radiotherapy is a cornerstone of colorectal cancer (CRC) treatment; however, its therapeutic efficacy is often compromised by both intrinsic and acquired resistance in CRC cells. This study employed small interfering RNA (siRNA) technology to elucidate the functional roles of BAMBI, GADD34, NFKBIA, and NFKBID in CRC cell lines SW480 and HCT116. We assessed their impact on key cellular processes and radiation sensitivity. Gene silencing of all four target genes significantly suppressed CRC cell proliferation, migration, and invasion. Moreover, siRNA-mediated knockdown enhanced radiation sensitivity, as evidenced by a substantial increase in apoptosis and a marked reduction in cell viability compared with controls. These findings suggest that BAMBI, GADD34, NFKBIA, and NFKBID serve as critical regulators of CRC progression and radiation resistance. Overall, this study provides a mechanistic foundation for further exploration into the pathways underlying radiation resistance and underscores the potential for developing personalized radiotherapy strategies guided by molecular profiling.

Figures