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Published on: July 14, 2016
Mitochondrial serine protease HtrA2/Omi as a potential therapeutic target
Md Shenuarin Bhuiyan1, Kohji Fukunaga
1Department of Pharmacology, Tohoku University, Japan.
Abstract:
Deregulation of apoptosis has been shown to contribute to the development of many diseases, including ischemia/reperfusion injury of organs, different types of cancer formation, as well as neurodegenerative and autoimmune disorders. Recently, the mitochondrial serine protease High temperature requirement A2 (HtrA2)/Omi has drawn attention as it played pivotal role in different pathological conditions. We critically discussed the rationale for therapeutically targeting HtrA2 signaling in pathological conditions and explore the molecular mechanisms of HtrA2 inhibition as a novel therapeutic strategy. The precise mode of action and importance of HtrA2 in mitochondrial quality control as well as in apoptosis in mammalian cells has been recently studied through biochemical, structural and genetic studies. This review introduces HtrA2 [correction of HrtA2] from its molecular origins, discusses its modulation and potential as a novel drug target, and considers future therapeutic perspectives.
Insights
Dysregulated apoptosis contributes to diseases. Targeting the mitochondrial protease High temperature requirement A2 (HtrA2) offers a novel therapeutic strategy for various pathological conditions by modulating its role in apoptosis and mitochondrial quality control.
Area of Science:
- Biochemistry
- Molecular Biology
- Cell Biology
Background:
- Deregulation of apoptosis is implicated in diseases like cancer, ischemia/reperfusion injury, and neurodegenerative disorders.
- The mitochondrial serine protease High temperature requirement A2 (HtrA2)/Omi plays a critical role in various pathological conditions.
- Recent studies highlight HtrA2's importance in mitochondrial quality control and apoptosis.
Purpose of the Study:
- To critically discuss the rationale for therapeutically targeting HtrA2 signaling in pathological conditions.
- To explore the molecular mechanisms underlying HtrA2 inhibition as a novel therapeutic strategy.
- To review HtrA2's molecular origins, modulation, and potential as a drug target.
Main Methods:
- Literature review of biochemical, structural, and genetic studies.
- Critical discussion of HtrA2's role in disease pathogenesis.
- Exploration of therapeutic strategies targeting HtrA2 signaling.
Main Results:
- HtrA2 is a pivotal enzyme in apoptosis and mitochondrial homeostasis.
- Modulation of HtrA2 activity presents a promising therapeutic avenue.
- Understanding HtrA2's mechanisms is key to developing new treatments.
Conclusions:
- Therapeutic targeting of HtrA2 signaling holds significant potential for treating diseases linked to apoptosis deregulation.
- HtrA2 inhibition represents a novel strategy with broad therapeutic perspectives.
- Further research into HtrA2's functions and modulation is warranted for drug development.
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