Adventitial Activation in the Pathogenesis of Injury-Induced Arterial Remodeling
| Autor: | Fan Jiang, Yuan Wang, Elsa C. Chan, Jingjing Wang, Jian-Li Wang, Xiaosun Guo |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Pathology medicine.medical_specialty Angiogenesis business.industry Tunica Adventitia 030204 cardiovascular system & hematology medicine.disease_cause Mural cell Pathology and Forensic Medicine Neovascularization Pathogenesis 03 medical and health sciences Paracrine signalling 030104 developmental biology 0302 clinical medicine medicine.anatomical_structure Adventitia cardiovascular system medicine medicine.symptom business Oxidative stress |
| Zdroj: | The American Journal of Pathology. 188:838-845 |
| ISSN: | 0002-9440 |
| DOI: | 10.1016/j.ajpath.2017.12.002 |
| Popis: | Transplant vasculopathy is one of the major causes of chronic rejection after solid organ transplantation. The pathogenic mechanisms of transplant vasculopathy are still poorly understood. Herein, we summarize current evidence suggesting that activation of the tunica adventitia may be involved in the pathogenesis of transplant vasculopathy. Adventitia is an early responder to various vascular injuries and plays an integral role in eliciting vascular inflammation and remodeling. Accumulation of macrophages in the adventitia promotes the development of vascular remodeling by releasing a variety of paracrine factors that have profound impacts on vascular mural cells. Targeting adventitial macrophages has been shown to be effective for repressing transplantation-induced arterial remodeling in animal models. Adventitia also fosters angiogenesis, and neovascularization of the adventitial layer may facilitate the transport of inflammatory cells through the arterial wall. Further investigations are warranted to clarify whether inhibiting adventitial oxidative stress and/or adventitial neovascularization are better strategies for preventing transplant vasculopathy. |
| Databáze: | OpenAIRE |
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