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Published on: October 22, 2014
Pericytes, microvasular dysfunction, and chronic rejection
Malgorzata Kloc1, Jacek Z Kubiak, Xian C Li
11 The Houston Methodist Research Institute, Houston, TX. 2 CNRS/University Rennes1 UMR 6290, Institute of Genetics and Development of Rennes, Cell Cycle Group, Faculty of Medicine, 35-043 Rennes, France.
Abstract:
Chronic rejection of transplanted organs remains the main obstacle in the long-term success of organ transplantation. Thus, there is a persistent quest for development of antichronic rejection therapies and identification of novel molecular and cellular targets. One of the potential targets is the pericytes, the mural cells of microvessels, which regulate microvascular permeability, development, and maturation by controlling endothelial cell functions and regulating tissue fibrosis and inflammatory response. In this review, we discuss the potential of targeting pericytes in the development of microvasular dysfunction and the molecular pathways involved in regulation of pericyte activities for antichronic rejection intervention.
Insights
Targeting pericytes, crucial cells in microvessels, offers a promising strategy to combat chronic rejection after organ transplantation. Understanding pericyte regulation is key to developing new anti-rejection therapies.
Area of Science:
- Immunology
- Vascular Biology
- Transplantation Science
Background:
- Chronic rejection is a major barrier to long-term organ transplant success.
- Novel therapeutic targets are needed to prevent chronic rejection.
- Pericytes play critical roles in microvascular function and tissue homeostasis.
Purpose of the Study:
- To review the potential of targeting pericytes for anti-chronic rejection interventions.
- To explore the molecular pathways regulating pericyte activity in the context of transplantation.
- To highlight pericytes as a target for preventing microvascular dysfunction.
Main Methods:
- Literature review of studies on pericytes and organ transplantation.
- Analysis of molecular mechanisms regulating pericyte function.
- Discussion of pericyte-targeted strategies for anti-rejection therapy.
Main Results:
- Pericytes are integral to microvascular integrity and regulate inflammation and fibrosis.
- Dysfunctional pericytes contribute to microvascular complications in chronic rejection.
- Targeting pericyte-specific pathways may offer novel therapeutic avenues.
Conclusions:
- Pericytes represent a significant, yet under-explored, target for preventing chronic organ transplant rejection.
- Modulating pericyte behavior holds promise for improving long-term transplant outcomes.
- Further research into pericyte molecular regulation is warranted for therapeutic development.
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