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The Inhibitor of Apoptosis (IAPs) in Adaptive Response to Cellular Stress
Arthur Marivin1, Jean Berthelet2, Stéphanie Plenchette3
1Institut National de la Santé et de la Recherche Médicale (Inserm), UMR866, Dijon F-21079, France. arthurmarivin@gmail.com.
Abstract:
Cells are constantly exposed to endogenous and exogenous cellular injuries. They cope with stressful stimuli by adapting their metabolism and activating various "guardian molecules." These pro-survival factors protect essential cell constituents, prevent cell death, and possibly repair cellular damages. The Inhibitor of Apoptosis (IAPs) proteins display both anti-apoptotic and pro-survival properties and their expression can be induced by a variety of cellular stress such as hypoxia, endoplasmic reticular stress and DNA damage. Thus, IAPs can confer tolerance to cellular stress. This review presents the anti-apoptotic and survival functions of IAPs and their role in the adaptive response to cellular stress. The involvement of IAPs in human physiology and diseases in connection with a breakdown of cellular homeostasis will be discussed.
Insights
Inhibitor of Apoptosis (IAPs) proteins protect cells from stress and damage. This review explores their role in cellular adaptation, survival, and disease.
Area of Science:
- Cellular Biology
- Molecular Biology
- Biochemistry
Background:
- Cells face constant endogenous and exogenous injuries.
- Cells activate "guardian molecules" to cope with stress.
- Inhibitor of Apoptosis (IAPs) proteins are key pro-survival factors.
Purpose of the Study:
- To review the anti-apoptotic and survival functions of IAPs.
- To discuss the role of IAPs in the adaptive response to cellular stress.
- To explore IAP involvement in human physiology and diseases.
Main Methods:
- Literature review of IAP functions.
- Analysis of IAP induction by cellular stress (hypoxia, ER stress, DNA damage).
- Discussion of IAP roles in homeostasis and disease.
Main Results:
- IAPs exhibit anti-apoptotic and pro-survival properties.
- IAP expression is induced by various cellular stresses.
- IAPs confer tolerance to cellular stress, aiding survival and repair.
Conclusions:
- IAPs are crucial for cellular adaptation and survival under stress.
- Dysregulation of IAPs is linked to the breakdown of cellular homeostasis and disease.
- Understanding IAPs offers insights into human physiology and pathology.
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