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Published on: January 10, 2025
Small molecules as modulators of regulated cell death against ischemia/reperfusion injury
Dan-Qian Chen1,2, Yan Guo3, Xin Li2
1Department of Emergency, China-Japan Friendship Hospital, Beijing, China.
Abstract:
Ischemia/reperfusion (IR) injury contributes to disability and mortality worldwide. Due to the complicated mechanisms and lack of proper therapeutic targets, few interventions are available that specifically target the pathogenesis of IR injury. Regulated cell death (RCD) of endothelial and parenchymal cells is recognized as the promising intervening target. Recent advances in IR injury suggest that small molecules exhibit beneficial effects on various RCD against IR injury, including apoptosis, necroptosis, autophagy, ferroptosis, pyroptosis, and parthanatos. Here, we describe the mechanisms behind these novel promising therapeutic targets and explain the machinery powering the small molecules. These small molecules exert protection by targeting endothelial or parenchymal cells to alleviate IR injury. Therapies of the ideal combination of small molecules targeting multiple cell types have shown potent synergetic therapeutic effects, laying the foundation for novel strategies to attenuate IR injury.
Insights
Small molecules show promise in treating ischemia/reperfusion (IR) injury by targeting various regulated cell death (RCD) pathways in endothelial and parenchymal cells. Combining these molecules offers synergistic therapeutic effects for IR injury.
Area of Science:
- Biomedical Science
- Molecular Biology
- Pathophysiology
Background:
- Ischemia/reperfusion (IR) injury is a significant global health concern with limited therapeutic options.
- The complex mechanisms of IR injury necessitate novel therapeutic targets.
- Regulated cell death (RCD) in endothelial and parenchymal cells presents a promising avenue for intervention.
Purpose of the Study:
- To explore the role of small molecules in modulating RCD pathways relevant to IR injury.
- To elucidate the mechanisms by which small molecules protect against IR injury.
- To evaluate the potential of combination therapies using small molecules.
Main Methods:
- Review of recent advances in IR injury research.
- Analysis of small molecule interactions with RCD pathways (apoptosis, necroptosis, autophagy, ferroptosis, pyroptosis, parthanatos).
- Examination of small molecules targeting endothelial and parenchymal cells.
Main Results:
- Small molecules demonstrate protective effects against various forms of RCD in the context of IR injury.
- These molecules function by targeting specific cell types to mitigate IR-induced damage.
- Combined small molecule therapies exhibit potent synergistic effects.
Conclusions:
- Small molecules targeting RCD pathways represent a novel therapeutic strategy for IR injury.
- Targeting multiple cell types with combined small molecules enhances therapeutic efficacy.
- This approach lays the groundwork for developing new treatments to attenuate IR injury.
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