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Allogeneic bone marrow mesenchymal stem cells transplantation for stabilizing and repairing of atherosclerotic ruptured plaque *

Introduction

There have been no satisfactory therapies on stabilizing and repairing ruptured plagues nowadays, which are the fundamental causes of acute coronary syndrome (ACS) and stroke. The aim of this study was to investigate the therapeutic potential of bone marrow mesenchymal stem cells (MSCs) in stabilizing and repairing ruptured plaques.

Materials and Methods

28 male New Zealand rabbits were randomly divided into 2 groups after establishment of atherosclerotic disrupted plaque model by liquid nitrogen frostbite: MSCs transplantation group and control group. MSCs were isolated, cultured in vitro, and labeled with BrdU. BrdU-incorporated MSCs (MSCs transplantation group) or an equal amount of IMDM medium without MSCs (control group) were transplanted into vessels with ruptured plaque. PAI-1, MMP-9 and hs-CRP were determined by ELISA of blood 3 days and 4 weeks after transplantation. Rabbits were sacrificed 4 weeks after transplantation and plaque repair was assessed by HE and Masson’s trichrome staining. Transplanted BrdU-positive cells were identified by immunohistochemistry.

Results

Four weeks after MSCs transplantation, PAI-1, MMP-9 and hs-CRP were reduced significantly in all experimental animals (p < 0.001). The reduction was more evident in the transplantation group than in the control group (p < 0.01). In addition, the transplantation group showed dramatically higher numbers of newly formed endothelial cells, collagen fibers, and proliferative BrdU-positive cells at plaque areas.

Conclusion

This study demonstrates that allogeneic MSCs transplantation can stabilize and repair ruptured plaques, which represents a novel approach for ACS and stroke.

* Legal Disclaimer: Chelation and Hyperbaric Therapy, Stem Cell Therapy, and other treatments and modalities mentioned or referred to in this web site are medical techniques that may or may not be considered “mainstream”. As with any medical treatment, results will vary among individuals, and there is no implication or guarantee that you will heal or achieve the same outcome as patients herein.

As with any procedure, there could be pain or other substantial risks involved. These concerns should be discussed with your health care provider prior to any treatment so that you have proper informed consent and understand that there are no guarantees to healing.

THE INFORMATION IN THIS WEBSITE IS OFFERED FOR GENERAL EDUCATIONAL PURPOSES ONLY AND DOES NOT IMPLY OR GIVE MEDICAL ADVICE. No Doctor/Patient relationship shall be deemed to have arisen simply by reading the information contained on these pages, and you should consult with your personal physician/care giver regarding your medical treatment before undergoing any sort of treatment or therapy.

Published on 05-23-2016
Authors: Shun-Miao Fang, Da-Yong Du, Yun-Tian Li, Xing-Li Ge, Peng-Tao Qin, Qing-Hua Zhang, Yang Liu
Source: Trombosis Research, June 2013Volume 131, Issue 6