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Updated: Jul 2, 2025

Author Spotlight: Tracing the Ferroptotic Signatures and Cell Death Dynamics in Medulloblastoma for Advanced Therapeutics
Published on: March 15, 2024
ATF4 in cellular stress, ferroptosis, and cancer
Hu Tang1, Rui Kang2, Jiao Liu3
1DAMP Laboratory, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, Guangdong, China.
Abstract:
Activating transcription factor 4 (ATF4), a member of the ATF/cAMP response element-binding (CREB) family, plays a critical role as a stress-induced transcription factor. It orchestrates cellular responses, particularly in the management of endoplasmic reticulum stress, amino acid deprivation, and oxidative challenges. ATF4's primary function lies in regulating gene expression to ensure cell survival during stressful conditions. However, when considering its involvement in ferroptosis, characterized by severe lipid peroxidation and pronounced endoplasmic reticulum stress, the ATF4 pathway can either inhibit or promote ferroptosis. This intricate relationship underscores the complexity of cellular responses to varying stress levels. Understanding the connections between ATF4, ferroptosis, and endoplasmic reticulum stress holds promise for innovative cancer therapies, especially in addressing apoptosis-resistant cells. In this review, we provide an overview of ATF4, including its structure, modifications, and functions, and delve into its dual role in both ferroptosis and cancer.
Insights
Activating transcription factor 4 (ATF4) is a stress-induced factor that can inhibit or promote ferroptosis. Understanding ATF4
Area of Science:
- Molecular Biology
- Cellular Stress Response
- Oncology
Background:
- Activating transcription factor 4 (ATF4) is a key regulator of cellular stress responses, including endoplasmic reticulum (ER) stress and amino acid deprivation.
- ATF4 modulates gene expression to promote cell survival under adverse conditions.
Purpose of the Study:
- To review the structure, modifications, and functions of ATF4.
- To elucidate the complex and dual role of ATF4 in ferroptosis.
- To explore the implications of ATF4 in ferroptosis and ER stress for cancer therapy.
Main Methods:
- Literature review of ATF4 functions.
- Analysis of ATF4's role in ferroptosis pathways.
- Examination of ATF4's impact on ER stress.
Main Results:
- ATF4 exhibits a dual role in ferroptosis, capable of both promoting and inhibiting this cell death pathway.
- The interplay between ATF4, ferroptosis, and ER stress is intricate and context-dependent.
- ATF4's modulation of ferroptosis is linked to its role in managing ER stress.
Conclusions:
- ATF4's complex regulation of ferroptosis presents therapeutic opportunities, particularly for apoptosis-resistant cancers.
- Targeting the ATF4 pathway could offer novel strategies for cancer treatment by manipulating ferroptosis.
- Further research into the ATF4-ferroptosis axis is crucial for developing effective cancer therapies.
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