# Mitochondrial function meets oncology: the multifaceted role of TFAM across cancer types

## TL;DR

This paper explores how TFAM, a key mitochondrial protein, has complex and varied roles in different cancers, influencing tumor growth and metabolism.

## Contribution

The study provides a comprehensive analysis of TFAM's dual roles in cancer through pan-cancer bioinformatics and experimental validation.

## Key findings

- TFAM connects mitochondrial function to tumor progression with both tumor-promoting and tumor-suppressive roles.
- TFAM regulates cancer metabolism, signaling, and immune environment across diverse cancer types.
- Precision strategies like mitochondria-targeted therapies are proposed to address TFAM-related vulnerabilities.

## Abstract

Mitochondrial transcription factor A (TFAM) is indispensable for mitochondrial DNA (mtDNA) maintenance and transcription, governing cellular bioenergetics. Despite its known physiological importance, TFAM plays a complex and often paradoxical role in cancer biology. This study integrates pan-cancer bioinformatics analyses with experimental evidence to comprehensively elucidate TFAM’s multifaceted impact on tumorigenesis. We systematically investigated the heterogeneity of TFAM across diverse cancer types, specifically focusing on its regulatory mechanisms in metabolic reprogramming, signal transduction, and immune microenvironment remodeling. Our analysis reveals that TFAM functions as a critical node connecting mitochondrial integrity to tumor progression, balancing tumor-promoting and tumor-suppressive roles depending on the context. Finally, we discuss the challenges of targeting TFAM, such as off-target toxicity, and highlight emerging precision oncology strategies, including mitochondria-targeted delivery systems, that aim to exploit these mitochondrial vulnerabilities.