Behnaz Ahrabi
Mostafa Rezaee Tavirani
Maryam Sadat Khoramgah
Mohsen Noroozian
Shahram Darabi
Shahrokh Khoshsirat
Hojjat-allah Abbaszadeh

Abstract Introduction: The purpose of this study is to investigate the effect of a low-power laser on the proliferation, migration, differentiation of different types of mesenchymal stem cells (MSCs) in different studies.Methods: The relevant articles that were published from ۲۰۰۴ to ۲۰۱۹ were collected from the sources of PubMed, Scopus, and only the articles specifically examining the effect of a low-power laser on the proliferation, differentiation, and migration of the MSCs were investigated.Results: After reviewing the literature, only ۴۲ articles were found relevant. Generally, most of the studies demonstrated that different laser parameters increased the proliferation, migration, and differentiation of the MSCs, except the results of two studies which were contradictory. In fact, changing the parameters of a low-power laser would affect the results. On the other hand, the source of the stem cells was reported as a key factor. In addition, the combination of lasers with other therapeutic approaches was found to be more effective.Conclusion: The different parameters of lasers has been found to be effective in the proliferation, differentiation, and migration of the MSCs and in general, a low-power laser has a positive effect on the MSCs, helping to improve different disease models. Keywords: Photobiomodulation therapy Differentiation Proliferation Migration Mesenchymal stem cell