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Updated: May 27, 2026

Screening Assays to Characterize Novel Endothelial Regulators Involved in the Inflammatory Response
Published on: September 15, 2017
Endothelial Dysfunction in Vascular Inflammation: The Role of NLRP3, NLRP10, AIM2, TLR9, and PANoptosis
Diana L Silva-Velasco1,2, Rinaldo R Dos Passos3,4, Raiana Anjos Moraes3,4
1Cardiovascular Translational Research Center, University of South Carolina, Columbia, SC, USA. diana.silvavelasco@uscmed.sc.edu.
Abstract:
Endothelial dysfunction is a hallmark of vascular inflammation and a critical step in the development of cardiovascular diseases. Recent evidence highlights the role of inflammasome factors in the inflammatory and cell death pathways that compromise endothelial homeostasis. NLRP3 and AIM2 inflammasomes drive the release of IL-1β and IL-18, amplifying vascular inflammation, while TLR9 responds to mitochondrial DNA to further potentiate endothelial secretion of inflammatory cytokines. In contrast, NLRP10 appears to act as a modulator of inflammasome activity and NF-κB signaling. Together, these sensors converge on processes such as pyroptosis, apoptosis, and necroptosis, which can integrate into PANoptosis, thereby exacerbating endothelial injury. Understanding these mechanisms offers new insights into the interplay between innate immunity and vascular dysfunction, with potential implications for therapeutic interventions.
Insights
Inflammasomes like NLRP3 and AIM2 contribute to vascular inflammation and endothelial dysfunction by releasing inflammatory cytokines. Targeting these pathways may offer new treatments for cardiovascular diseases.
Area of Science:
- Cardiovascular Biology
- Innate Immunity
- Molecular Medicine
Background:
- Endothelial dysfunction is central to vascular inflammation and cardiovascular diseases.
- Inflammasome factors critically influence inflammatory and cell death pathways impacting endothelial homeostasis.
Purpose of the Study:
- To elucidate the role of specific inflammasome sensors (NLRP3, AIM2, TLR9, NLRP10) in endothelial dysfunction.
- To understand how these sensors mediate inflammatory responses and cell death, including PANoptosis.
- To explore potential therapeutic targets for vascular dysfunction.
Main Methods:
- Analysis of inflammasome activation pathways in endothelial cells.
- Investigation of cytokine release (IL-1β, IL-18) and inflammatory signaling.
- Examination of cell death mechanisms (pyroptosis, apoptosis, necroptosis, PANoptosis).
Main Results:
- NLRP3 and AIM2 inflammasomes promote IL-1β and IL-18 release, amplifying vascular inflammation.
- TLR9 activation by mitochondrial DNA enhances endothelial inflammatory cytokine secretion.
- NLRP10 modulates inflammasome activity and NF-κB signaling.
- Convergent signaling leads to pyroptosis, apoptosis, necroptosis, and PANoptosis, causing endothelial injury.
Conclusions:
- Inflammasome pathways are key drivers of endothelial dysfunction and vascular inflammation.
- These innate immune sensors integrate multiple cell death pathways, exacerbating endothelial injury.
- Understanding these mechanisms provides novel therapeutic avenues for cardiovascular diseases.
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