{"data":{"id":"10.6084/m9.figshare.c.3264523","type":"dois","attributes":{"doi":"10.6084/m9.figshare.c.3264523","prefix":"10.6084","suffix":"m9.figshare.c.3264523","identifiers":[],"alternateIdentifiers":[],"creators":[{"name":"Arisaka, Yoshinori","nameType":"Personal","givenName":"Yoshinori","familyName":"Arisaka","affiliation":[],"nameIdentifiers":[]},{"name":"Nishijima, Yuka","nameType":"Personal","givenName":"Yuka","familyName":"Nishijima","affiliation":[],"nameIdentifiers":[]},{"name":"Shin-Ichi Yusa","affiliation":[],"nameIdentifiers":[]},{"name":"Takeda, Naoya","nameType":"Personal","givenName":"Naoya","familyName":"Takeda","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Photo-Induced \u003ci\u003eIn Situ\u003c/i\u003e Crosslinking of Polymer Brushes with Dimethyl Maleimide Moieties for Dynamically Stimulating Stem Cell Differentiation"}],"publisher":"Figshare","container":{},"publicationYear":2016,"subjects":[{"subject":"Biophysics"},{"subject":"Biochemistry"},{"subject":"29999 Physical Sciences not elsewhere classified","subjectScheme":"FOR"},{"subject":"FOS: Physical sciences","schemeUri":"http://www.oecd.org/science/inno/38235147.pdf","subjectScheme":"Fields of Science and Technology (FOS)"},{"subject":"FOS: Physical sciences","subjectScheme":"Fields of Science and Technology (FOS)"},{"subject":"Cell Biology"},{"subject":"Biotechnology"},{"subject":"39999 Chemical Sciences not elsewhere classified","subjectScheme":"FOR"},{"subject":"FOS: Chemical sciences","schemeUri":"http://www.oecd.org/science/inno/38235147.pdf","subjectScheme":"Fields of Science and Technology (FOS)"},{"subject":"FOS: Chemical sciences","subjectScheme":"Fields of Science and Technology (FOS)"},{"subject":"Developmental Biology"},{"subject":"Hematology"}],"contributors":[],"dates":[{"date":"2016-06-03","dateType":"Created"},{"date":"2016-06-03","dateType":"Updated"},{"date":"2016","dateType":"Issued"}],"language":null,"types":{"ris":"GEN","bibtex":"misc","citeproc":"article","schemaOrg":"Collection","resourceType":"Collection","resourceTypeGeneral":"Collection"},"relatedIdentifiers":[{"relationType":"IsSupplementTo","relatedIdentifier":"10.1080/09205063.2016.1196531","relatedIdentifierType":"DOI"}],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"CC-BY","rightsUri":"http://creativecommons.org/licenses/by/3.0/us"}],"descriptions":[{"description":"We designed photo-crosslinkable polymer brushes with dimethylmaleimide moieties, in order to demonstrate dynamic stimulation of cell differentiation in mesenchymal stem cells (MSCs). The polymer brushes were synthesized by surface-initiated reversible addition fragmentation chain transfer (si-RAFT) polymerization, using dimethylmaleimide ethyl methacrylate and methyl methacrylate on a chain transfer agent-immobilized glass surface. The polymer brushes were crosslinked by photodimerization of the dimethylmaleimide moieties within polymer chains with stem cells present on the surface. In order to evaluate the effects of \u003ci\u003ein situ\u003c/i\u003e photo-induced crosslinking of the polymer brushes on gene expression of stem cells, human bone-marrow MSCs were cultured under static and dynamic culture conditions for 7 days. Expression of the osteocalcin (\u003ci\u003eOcn\u003c/i\u003e) gene in MSCs was used as an indicator of osteoblast differentiation under dynamic culture conditions. Structural conversion from non-crosslinked polymer brushes to crosslinked polymer brushes increased expression of \u003ci\u003eOcn\u003c/i\u003e by 1.4-fold in the presence of adhered cells, compared with non-crosslinked polymer brushes under static culture conditions. These results suggest that MSCs recognized surface conversion from non-crosslinked to crosslinked structures, which resulted in altered differentiation lineages. Therefore, photo-crosslinkable surfaces with dimethyl maleimide moieties are potential novel materials for dynamically stimulating MSC differentiation.","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"xml":"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