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Recent advances in pericyte biology--implications for health and disease
1Department of Anatomy and Physiology, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown.
Insights
Recent research on pericytes reveals their crucial role in microvessel health and disease. Understanding pericyte functions, like their contractile properties and ability to differentiate, offers potential for new therapeutic strategies in conditions such as diabetes and inflammation.
Area of Science:
- Vascular Biology
- Cell Biology
- Regenerative Medicine
Background:
- Pericytes are critical cells embedded in microvessels, influencing their structure and function.
- These cells are increasingly recognized for their involvement in various pathological conditions, including diabetes, inflammation, and cancer.
- Pericytes possess multipotent characteristics, capable of differentiating into other cell types.
Purpose of the Study:
- To review recent advancements in pericyte research.
- To elucidate the role of pericytes in normal and pathological microvascular functions.
- To explore the therapeutic potential of targeting pericyte behavior.
Main Methods:
- Systematic review of current literature on pericyte research.
- Analysis of in vitro studies examining pericyte contractile properties.
- Evaluation of in vivo studies investigating pericyte localization and function in disease models.
Main Results:
- Pericytes exhibit contractile properties and respond to inflammatory mediators.
- In vivo studies show pericytes are strategically located near endothelial junctions, suggesting a role in inflammation.
- Pericytes can differentiate into smooth muscle cells, osteoblasts, and chondrocytes.
Conclusions:
- Pericyte research is vital for understanding microvascular health and disease.
- Targeting pericyte responses holds promise for developing novel therapeutic interventions.
- Further investigation into pericyte modulation could lead to improved treatments for various diseases.
Abstract:
This review highlights the contributions of recent pericyte research towards our understanding of normal and pathological functioning of microvessels. Pericytes are implicated in a variety of microvascular alterations, including wound healing, diabetes, inflammation, hypertension and neoplasia. They are capable of changing into other mesodermally derived cell types, including smooth muscle cells, osteoblasts and chondrocytes. The contractile properties of pericytes are being systematically examined in vitro; in addition to their tendency to contract spontaneously, pericytes can contract further in response to mediators of inflammation. In vivo studies indicate pericytes are concentrated near endothelial cell junctions along venules where they likely participate in inflammatory events. As agents are identified which modify pericyte responses to disease states, better therapeutic approaches will become possible.