Tug of war between survival and death: exploring ATM function in cancer

Area of Science:

• Molecular Biology
• Genetics
• Cancer Research

Background:

• Ataxia-telangiectasia mutated (ATM) kinase is a key regulator of genome stability and the DNA damage response (DDR).
• Dysregulation of ATM pathways is implicated in cancer initiation, progression, and therapeutic strategies.
• ATM loss of function can promote tumor initiation and progression, suggesting a tumor suppressor role.

Purpose of the Study:

• To provide a comprehensive overview of ATM's multifaceted role in cancer.
• To explore how ATM influences the balance between cell survival, proliferation, and death in cancer.
• To investigate ATM's modulation of signaling networks critical for tumorigenesis.

Main Methods:

• Literature review synthesizing findings from multiple research laboratories.
• Analysis of studies linking ATM to genome stability and DNA damage response.
• Examination of ATM's involvement in signaling pathways such as oxidative stress, hypoxia, and AKT activation.

Main Results:

• ATM acts as a guardian of genome stability, playing a central role in DNA damage response.
• ATM's function in cancer is complex, potentially acting as a tumor suppressor while also modulating tumorigenesis.
• ATM influences key signaling networks including oxidative stress, hypoxia, and receptor tyrosine kinase/AKT activation.

Conclusions:

• ATM's dual role in cancer necessitates a deeper understanding for effective therapeutic development.
• ATM's intricate involvement in cell survival, proliferation, and death pathways highlights its significance in oncology.
• Further research into ATM's complex functions will be crucial for advancing cancer treatment strategies.