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Bone marrow-derived mesenchymal stem cell attenuates skin fibrosis development in mice *

Recent studies showed that mesenchymal stem cell (MSC) transplantation significantly alleviated tissue fibrosis; however, little is known about the efficacy on attenuating cutaneous scar formation. In this study, we established a dermal fibrosis model induced by bleomycin and evaluated the benefit of bone marrow-derived mesenchymal stem cells (BM-MSCs) on skin fibrosis development. Tracing assay of green fluorescent protein (GFP+)BM-MSCs showed that the cells disappeared gradually within 24 hours upon administration, which hinted the action of BM-MSCs in vivo was exerted in the initial phase of repair in this model. Therefore, we repeatedly transplanted syngeneic BM-MSCs in the process of skin fibrosis formation. After 3 weeks, it was found that BM-MSC-treated lesional skin demonstrated a unanimous basket-weave organisation of collagen arrangement similar to normal skin, with few inflammatory cells. In addition, lesional skin with BM-MSC treatment exhibited a significant down-regulation of transforming growth factor-β1 (TGF-β1), type I collagen and heat-shock protein 47 (HSP47), with higher expression of matrix metalloproteinases (MMPs)-2, -9 and -13. Further experiments showed that α-smooth muscle actin (α-SMA) positive cells, the most reliable marker of myofibroblasts, apparently decreased after BM-MSC transplantation, which revealed that BM-MSCs could attenuate myofibroblast proliferation and differentiation as well as matrix production. Taken together, these findings suggested that BM-MSCs can inhibit the formation process of bleomycin-induced skin fibrosis, alleviate inflammation and favour the remodelling of extracellular matrix.

* 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 11-03-2017
Authors: Yan Wu, Sha Huang, Jirigala Enhe, Kui Ma, Siming Yang, Tongzhu Sun, Xiaobing Fu