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Updated: Jul 17, 2025

Characterization of MLKL-mediated Plasma Membrane Rupture in Necroptosis
Published on: August 7, 2018
Role of RIPK3‑CaMKII‑mPTP signaling pathway‑mediated necroptosis in cardiovascular diseases (Review)
Sheng Chen1, Senhong Guan1, Zhaohan Yan1
1Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde Foshan), Foshan, Guangdong 528308, P.R. China.
Insights
Necroptosis, a cell death pathway, is implicated in cardiovascular diseases via the RIPK3-CaMKII-mPTP signaling pathway. This pathway
Area of Science:
- Molecular Biology
- Cardiovascular Research
- Cell Death Mechanisms
Background:
- Necroptosis is a regulated form of cell death crucial for homeostasis and implicated in cardiovascular disease pathogenesis.
- Key necroptosis mediators include Receptor Interacting Protein Kinase (RIPK) 1, RIPK3, and mixed lineage kinase domain-like protein.
Approach:
- This review synthesizes current research on the RIPK3-CaMKII-mPTP signaling pathway in cardiovascular diseases.
- It focuses on the role of this pathway in conditions like myocardial infarction, heart failure, and atherosclerosis.
Key Points:
- Calcium/calmodulin-dependent protein kinase II (CaMKII) is a RIPK3 substrate that triggers mitochondrial permeability transition pore (mPTP) opening.
- This RIPK3-CaMKII-mPTP axis mediates necroptosis in myocardial cells.
- The pathway's involvement is explored across diverse cardiovascular pathologies and drug toxicities.
Conclusions:
- The RIPK3-CaMKII-mPTP signaling pathway is a significant contributor to cardiovascular diseases.
- Understanding this pathway offers potential therapeutic targets for treating various heart conditions and drug-induced cardiotoxicity.
Abstract:
Necroptosis, which is distinct from apoptosis and necrosis, serves a crucial role in ontogeny and the maintenance of homeostasis. In the last decade, it has been demonstrated that the pathogenesis of cardiovascular diseases is also linked to necroptosis. Receptor interaction protein kinase (RIPK) 1, RIPK3 and mixed lineage kinase domain‑like protein serve vital roles in necroptosis. In addition to the aforementioned necroptosis‑related components, calcium/calmodulin‑dependent protein kinase II (CaMKII) has been identified as a novel substrate for RIPK3 that promotes the opening of the mitochondrial permeability transition pore (mPTP), and thus, mediates necroptosis of myocardial cells through the RIPK3‑CaMKII‑mPTP signaling pathway. The present review provides an overview of the current knowledge of the RIPK3‑CaMKII‑mPTP‑mediated necroptosis signaling pathway in cardiovascular diseases, focusing on the role of the RIPK3‑CaMKII‑mPTP signaling pathway in acute myocardial infarction, ischemia‑reperfusion injury, heart failure, abdominal aortic aneurysm, atherosclerosis, diabetic cardiomyopathy, hypertrophic cardiomyopathy, atrial fibrillation, and the cardiotoxicity associated with antitumor drugs and other chemicals. Finally, the present review discusses the research status of drugs targeting the RIPK3‑CaMKII‑mPTP signaling pathway.
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