Two norbornene-functionalized PEG macromers are synthesized to render hydrogels with different hydrolytic degradability. Dithiol-containing linkers such as dithiothreitol or biscysteine-containing peptides are used to control proteolytic degradability. The influence of thiol-ene gel degradability on cell survival and morphogenesis in 3D is assessed using hMSCs and pancreatic MIN6 cells. The initial cell viability can be negatively affected in highly crosslinked thiol-ene hydrogels. When cells are encapsulated in thiol-ene gels lacking cell-adhesive motifs, their survival and proliferation are promoted in more hydrolytically labile hydrogels. The degree of 3D cell spreading in encapsulated hMSCs is enhanced when the matrices are immobilized with cell-adhesive motifs.
机构:
Stanford Univ, Dept Bioengn, Stanford, CA 94305 USAStanford Univ, Dept Bioengn, Stanford, CA 94305 USA
Wang, Christine
Tong, Xinming
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Stanford Univ, Dept Orthopaed Surg, Stanford, CA 94305 USAStanford Univ, Dept Bioengn, Stanford, CA 94305 USA
Tong, Xinming
Yang, Fan
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Stanford Univ, Dept Bioengn, Stanford, CA 94305 USA
Stanford Univ, Dept Orthopaed Surg, Stanford, CA 94305 USAStanford Univ, Dept Bioengn, Stanford, CA 94305 USA
机构:
Univ Utah, Dept Pharmaceut, CCCD, Salt Lake City, UT 84112 USA
Univ Utah, Dept Pharmaceut Chem, CCCD, Salt Lake City, UT 84112 USAUniv Utah, Dept Pharmaceut, CCCD, Salt Lake City, UT 84112 USA
Yang, Jiyuan
Jacobsen, Michael T.
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Univ Utah, Dept Pharmaceut, CCCD, Salt Lake City, UT 84112 USA
Univ Utah, Dept Pharmaceut Chem, CCCD, Salt Lake City, UT 84112 USAUniv Utah, Dept Pharmaceut, CCCD, Salt Lake City, UT 84112 USA
Jacobsen, Michael T.
Pan, Huaizhong
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Univ Utah, Dept Pharmaceut, CCCD, Salt Lake City, UT 84112 USA
Univ Utah, Dept Pharmaceut Chem, CCCD, Salt Lake City, UT 84112 USAUniv Utah, Dept Pharmaceut, CCCD, Salt Lake City, UT 84112 USA