Abstract
Background:The therapeutic value of mesenchymal stem cells (MSCs) in tissue engineering and regenerative medicine is attributable in part to paracrine pathways triggered by several secreted factors secreted into culture media. The secreted factor here is known as the conditioned medium (CM) or secretome.Objectives:This review is aimed to investigate and summarise the in-vitro, pre-clinical in-vivo studies regarding the role of CM-MSC in ligament or tendon healing from 1998 until 2018.Data Sources:A systematic literature search on PubMed, MEDLINE, OVID, Scopus, Google scholar, and Cochrane library was carried out by using search terms: Secretome, conditioned medium, mesenchymal stem cell, ligament, tendon and healing.Methods:A total of 904 articles were reviewed. Five articles were identified as relevant for this systematic literature review.Results:One tables of studies were constructed for in vitro studies and in-vivo studies.Conclusion:All of the included in-vitro studies and in-vivo studies have shown a promoting effect of ligament or tendon healing at various stages in vitro or in vivo. Although there are no clinical studies regarding the use of CM- MSC in the human ligament or tendon healing that have been conducted, transplantation of secretome has shown a promising result in the acceleration of ligament or tendon healing process.
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