TRIM3 and TRIM16 as potential tumor suppressors in breast cancer patients

Area of Science:

• Oncology
• Molecular Biology
• Genetics

Background:

• Breast cancer remains a leading cause of mortality in women globally.
• Tripartite-motif (TRIM) proteins, a family of ~80 members, are implicated in various cancers.
• TRIM3 and TRIM16 have demonstrated tumor-suppressive activities in different cancer types.

Purpose of the Study:

• To assess the expression levels of TRIM3 and TRIM16 in both cancerous and normal breast tissue samples.
• To investigate the correlation between TRIM3 and TRIM16 expression and various clinical-pathological parameters in breast cancer.

Main Methods:

• Quantitative reverse transcription polymerase chain reaction (qRT-PCR) was employed to quantify TRIM3 and TRIM16 gene expression.
• Gene expression levels were compared between tumor and normal breast tissue samples.
• Statistical analyses were performed to associate gene expression with clinical and pathological features.

Main Results:

• TRIM3 and TRIM16 gene expression were significantly downregulated in breast tumor samples (0.45-fold and 0.29-fold, respectively).
• Reduced expression of both TRIM3 and TRIM16 correlated positively with breast cancer invasion, including lymphatic/vascular and perineural invasion.
• TRIM3 expression was associated with histological grade, but no significant links were found with tumor size, stage, or necrosis.

Conclusions:

• TRIM3 and TRIM16 exhibit significantly reduced expression in breast cancer tissues.
• The findings support a potential tumor suppressor function for TRIM3 and TRIM16 in breast cancer.
• Downregulation of TRIM3 and TRIM16 may contribute to cancer progression and invasiveness.