Lai P.-L.Lin H.Chen S.-F.Yang S.-C.Hung K.-H.Chang C.-F.Chang H.-Y.FRANK LEIGH LULee Y.-H.Liu Y.-C.Huang H.-C.HSIAO-CHUN HUANG2020-12-082020-12-0820172045-2322https://www.scopus.com/inward/record.uri?eid=2-s2.0-85015281067&doi=10.1038%2fsrep44534&partnerID=40&md5=8bbc93cbda9a6a2c4484401794e0ce41https://scholars.lib.ntu.edu.tw/handle/123456789/524920Human mesenchymal stromal/stem cells (MSCs) are multipotent and currently undergoing hundreds of clinical trials for disease treatments. To date, no studies have generated induced MSCs from skin fibroblasts with chemicals or growth factors. Here, we established the first chemical method to convert primary human dermal fibroblasts into multipotent, induced MSC-like cells (iMSCs). The conversion method uses a defined cocktail of small molecules and growth factors, and it can achieve efficient conversion with an average rate of 38% in 6 days. The iMSCs have much higher clonogenicity than fibroblasts, and they can be maintained and expanded in regular MSC medium for at least 8 passages and further differentiated into osteoblasts, adipocytes, and chondrocytes. Moreover, the iMSCs can suppress LPS-mediated acute lung injury as effectively as bone marrow-derived mesenchymal stem cells. This finding may greatly benefit stem cell biology, cell therapy, and regenerative medicine. ? The Author(s) 2017.[SDGs]SDG3signal peptide; cell differentiation; chondrocyte; cytology; drug effect; fibroblast; human; induced pluripotent stem cell; mesenchymal stem cell transplantation; mesenchymal stroma cell; molecular library; pharmacology; skin; Cell Differentiation; Chondrocytes; Fibroblasts; Humans; Induced Pluripotent Stem Cells; Intercellular Signaling Peptides and Proteins; Mesenchymal Stem Cell Transplantation; Mesenchymal Stromal Cells; Skin; Small Molecule Librariesjournal article10.1038/srep44534283039272-s2.0-85015281067