title: In vivo comparison of biomineralized scaffold-directed osteogenic differentiation of human embryonic and mesenchymal stem cells.
abstract: Human pluripotent stem cells such as embryonic stem cells (hESCs) and multipotent stem cells like mesenchymal stem cells (hMSCs) hold great promise as potential cell sources for bone tissue regeneration. Comparing the in vivo osteogenesis of hESCs and hMSCs by biomaterial-based cues provides insight into the differentiation kinetics of these cells as well as their potential to contribute to bone tissue repair in vivo. Here, we compared in vivo osteogenic differentiation of hESCs and hMSCs within osteoinductive calcium phosphate (CaP)-bearing biomineralized scaffolds that recapitulate a bone-specific mineral microenvironment. Both hESCs and hMSCs underwent osteogenic differentiation responding to the biomaterial-based instructive cues. Furthermore, hMSCs underwent earlier in vivo osteogenesis compared to hESCs, but both stem cell types acquired a similar osteogenic maturation by 8 weeks of implantation.
authors.affiliation: School of Chemistry and Chemical Engineering, Southeast University, Sipailou 2#, Nanjing, Jiangsu Province, 210096, People's Republic of China.
authors.forename: Cai
authors.initials: C
authors.lastname: Wen
authors.affiliation: Department of Bioengineering, University of California- San Diego, 9500, Gilman Drive, La Jolla, CA, 92093-0412, USA.
authors.forename: Heemin
authors.initials: H
authors.lastname: Kang
authors.affiliation: Department of Bioengineering, University of California- San Diego, 9500, Gilman Drive, La Jolla, CA, 92093-0412, USA.
authors.forename: Yu-Ru V
authors.initials: YR
authors.lastname: Shih
authors.affiliation: Department of Bioengineering, University of California- San Diego, 9500, Gilman Drive, La Jolla, CA, 92093-0412, USA.
authors.forename: YongSung
authors.initials: Y
authors.lastname: Hwang
authors.affiliation: Department of Bioengineering, University of California- San Diego, 9500, Gilman Drive, La Jolla, CA, 92093-0412, USA. svarghese@ucsd.edu.
authors.forename: Shyni
authors.initials: S
authors.lastname: Varghese
mesh_terms: D000818:Animals; D002113:Calcification, Physiologic / Q000187:drug effects*; D002130:Calcium Phosphates / Q000494:pharmacology*; D002454:Cell Differentiation; D002478:Cells, Cultured; D053595:Embryonic Stem Cells / Q000166:cytology*; D006801:Humans; D059630:Mesenchymal Stem Cells / Q000166:cytology*; D051379:Mice; D010012:Osteogenesis; D033581:Stem Cell Transplantation; D054457:Tissue Scaffolds
chemical_list: D002130:Calcium Phosphates; C020243:calcium phosphate
keywords: Biomineralized scaffold; Bone tissue engineering; Calcium phosphate; Embryonic stem cells; In vivo osteogenic differentiation; Mesenchymal stem cells