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Bai H, Wang Z, Li M, Liu Y, Wang W, Sun P, Wei S, Wang Z, Li J, Dardik A. Hyaluronic acid-heparin conjugated decellularized human great saphenous vein patches decrease neointimal thickness. J Biomed Mater Res B Appl Biomater 2020; 108:2417-2425. [PMID: 32022402 DOI: 10.1002/jbm.b.34574] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 01/07/2020] [Accepted: 01/20/2020] [Indexed: 12/19/2022]
Abstract
Although the science of implantable materials has advanced therapeutic options in vascular surgery, graft failure is still a problem in need of a durable solution. With the development of coating and decellularization techniques, coated prosthetic grafts have become an option; however, whether decellularized human saphenous vein can be conjugated and implanted is not known. Human great saphenous vein (GSV) was harvested and decellularized and hyaluronic acid (HA)-heparin was conjugated to the GSV; water contact angles (WCA), morphology, and sulfur element change were measured before and after heparin bonding. GSV patches were implanted into the rat inferior vena cava and aorta; patches were harvested (Day 14) and analyzed. HA-heparin was successfully conjugated to the decellularized human GSV with altered morphology and reduced WCA. The HA-heparin coated decellularized GSV patch was anti-thrombotic in vitro, and significantly decreased neointimal thickness both in patch venoplasty and angioplasty in a rat model. Both CD90 and nestin positive cells participated in neointima formation. These data show that HA-heparin coated human GSV patches decrease neointimal thickness when used both in venoplasty and arterioplasty. Tissue engineered decellularized human GSV is a promising vascular prosthesis.
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Affiliation(s)
- Hualong Bai
- Department of Vascular and Endovascular Surgery, First Affiliated Hospital of Zhengzhou University, Henan, China.,Key Vascular Physiology and Applied Research Laboratory of Zhengzhou City, Henan, China
| | - Zhiwei Wang
- Department of Vascular and Endovascular Surgery, First Affiliated Hospital of Zhengzhou University, Henan, China
| | - Mingxing Li
- Department of Vascular and Endovascular Surgery, First Affiliated Hospital of Zhengzhou University, Henan, China
| | - Yuanfeng Liu
- Department of Vascular and Endovascular Surgery, First Affiliated Hospital of Zhengzhou University, Henan, China
| | - Wang Wang
- Department of Physiology, Medical school of Zhengzhou University, Henan, China.,Key Vascular Physiology and Applied Research Laboratory of Zhengzhou City, Henan, China
| | - Peng Sun
- Department of Vascular and Endovascular Surgery, First Affiliated Hospital of Zhengzhou University, Henan, China
| | - Shunbo Wei
- Department of Vascular and Endovascular Surgery, First Affiliated Hospital of Zhengzhou University, Henan, China
| | - Zhiju Wang
- Department of Physiology, Medical school of Zhengzhou University, Henan, China.,Key Vascular Physiology and Applied Research Laboratory of Zhengzhou City, Henan, China
| | - Jiang'an Li
- School of Material Science and Engineering & Henan Key Laboratory of Advanced Magnesium Alloy & Key Laboratory of materials processing and mold technology (Ministry of Education), Zhengzhou University, Henan, China
| | - Alan Dardik
- The Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut.,Department of Surgery and of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, Connecticut
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Genetic lineage tracing analysis of c-kit + stem/progenitor cells revealed a contribution to vascular injury-induced neointimal lesions. J Mol Cell Cardiol 2018; 121:277-286. [PMID: 30053526 DOI: 10.1016/j.yjmcc.2018.07.252] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Accepted: 07/23/2018] [Indexed: 11/23/2022]
Abstract
AIMS Accumulating evidence indicates the presence of vascular stem/progenitor cells that may play a role in endothelial repair and lesion formation in the injured artery, in which c-kit+ stem/progenitor cells have been reported to differentiate into endothelial and smooth muscle cells in vitro and in ischemic tissue. In this study, we investigated whether and how endogenous c-kit+ stem/progenitor cells contribute to vascular injury and neointima formation in vivo. METHODS AND RESULTS We created Kit-CreERxRosa26-RFP mice and performed genetic lineage tracing analysis of c-kit+ stem/progenitor cells in injury-induced neointima formation in vivo. We provide direct evidence that endogenous c-kit+ stem/progenitor cells minimally differentiate into endothelial or smooth muscle cells facilitating vascular repair, but predominantly generate monocytes/macrophages and granulocytes contributing to vascular immuno-inflammatory response to endothelial injury. Although c-kit+ cells reside in both bone marrow and vessel wall, bone marrow transplantation data indicate that bone marrow-derived c-kit+ cells are the main source for enhancing neointima formation. Furthermore, treatment of ACK2, a c-kit receptor antagonizer, attenuates neointimal hyperplasia after injury at least in part by depleting c-kit+ cells and their generated progeny. CONCLUSIONS c-kit+ stem/progenitor cells are not a main source for endothelial regeneration and smooth muscle accumulation of the large artery injury, but a plausible interventional approach to reduce vascular immuno-inflammatory response and subsequently to ameliorate vascular lesions.
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