Sestrin 2, a potential star of antioxidant stress in cardiovascular diseases

Area of Science:

• Biochemistry
• Cardiovascular Biology
• Cellular Stress Response

Background:

• Reactive oxygen species (ROS) are crucial for cell signaling but excessive ROS drives cardiovascular diseases (CVDs).
• Oxidative stress contributes to myocardial aging, heart failure, and ischemia/reperfusion injury.
• Sestrin 2 (Sesn2) is a stress-inducible protein with antioxidant properties relevant to cellular protection.

Purpose of the Study:

• To review the role of Sestrin 2 (Sesn2) in cardiovascular diseases (CVDs).
• To elucidate the antioxidant mechanisms of Sesn2 in the context of cardiac oxidative stress.
• To explore Sesn2 as a potential therapeutic target for CVDs.

Main Methods:

• Literature review focusing on Sesn2's involvement in redox signaling pathways.
• Analysis of Sesn2's interaction with key signaling molecules like Nrf2, AMPK, and mTORC1.
• Examination of Sesn2's impact on cellular processes in various CVD models.

Main Results:

• Sesn2 modulates redox signaling, primarily through the Nrf2 pathway.
• Sesn2 activates adenosine monophosphate-activated protein kinase (AMPK) and inhibits mTORC1.
• Sesn2 demonstrates protective effects against oxidative stress-induced heart damage, promoting cell survival.

Conclusions:

• Sesn2 plays a significant role in mitigating oxidative stress in cardiovascular diseases (CVDs).
• Sesn2's antioxidant activity supports cellular adaptation to stress, offering therapeutic potential.
• Targeting Sesn2 presents a novel strategy for managing various cardiovascular conditions.