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Updated: Jan 7, 2026

Mouse Model of Alloimmune-induced Vascular Rejection and Transplant Arteriosclerosis
Published on: May 17, 2015
Cellular and Molecular Aspects of Chronic Rejection.
Zhongcheng Mei1, Alexander Sasha Krupnick2,3
1Department of Surgery, University of Maryland, Baltimore, MD, USA. zmei@som.umaryland.edu.
Chronic rejection causes long-term graft failure after organ transplants due to immune responses and inflammation. Understanding these mechanisms is key to developing new treatments and improving graft survival.
Area of Science:
- Immunology
- Transplantation Biology
- Fibrosis Research
Background:
- Chronic rejection is a primary cause of solid organ transplant failure.
- It involves complex alloimmune responses, inflammation, and abnormal tissue repair.
- Progressive fibrotic remodeling characterizes this condition.
Purpose of the Study:
- To provide a comprehensive overview of chronic rejection mechanisms.
- To focus on cellular and molecular pathways involved in fibrotic remodeling.
- To highlight the importance of understanding these mechanisms for therapeutic development.
Main Methods:
- Review of cellular and molecular mechanisms.
- Focus on innate immune cells, T and B lymphocytes.
- Analysis of profibrotic cytokines, signaling pathways, and ECM remodeling.
Main Results:
- Detailed mechanistic understanding is crucial.
- Identifies key cellular players and molecular mediators.
- Highlights the role of extracellular matrix remodeling.
Conclusions:
- Mechanistic insights are critical for identifying biomarkers.
- Targeted therapies can be developed to prevent or reduce chronic rejection.
- Improved understanding will enhance long-term graft survival.
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