A self-healing hydrogel as an injectable instructive carrier for cellular morphogenesis.
A self-healing hydrogel as an injectable instructive carrier for cellular morphogenesis.
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DOI:
10.1016/j.biomaterials.2018.09.003
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发表时间:
2018-12
期刊:
影响因子:
14
通讯作者:
Gerecht S
中科院分区:
文献类型:
--
作者:
Wei Z;Gerecht S
Transplantation of progenitor cells can accelerate tissue healing and regenerative processes. Nonetheless, direct cell delivery fails to support survival of transplanted cells or long-term treatment of vascular related diseases due to compromised vasculature and tissue conditions. Using injectable hydrogels that cross-link in situ, could protect cells in vivo, but their sol-gel transition is time-dependent and difficult to precisely control. Hydrogels with self-healing properties are proposed to address these limitations, yet current self-healing hydrogels lack bio-functionality, hindering the morphogenesis of delivered cells into a tissue structure. Here we establish a gelatin (Gtn)-based self-healing hydrogel cross-linked by oxidized dextran (Odex) as an injectable carrier for delivery of endothelial progenitors. The dynamic imine cross-links between Gtn and Odex confer the self-healing ability to the Gtn-l-Odex hydrogels following syringe injection. The self-healing Gtn-l-Odex not only protects the progenitors from injected shear force but it also allows controllable spatial/temporal placement of the cells. Moreover, owing to the cell-adhesive and proteolytic sites of Gtn, the Gtn-l-Odex hydrogels support complex vascular network formation from the endothelial progenitors, both in vitro and in vivo. This is the first report of injectable, self-healing hydrogels with biological properties promoting vascular morphogenesis, which holds great promise for accelerating the success of regenerative therapies.
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影响因子:
9.5
作者:
Dong, Ruonan;Zhao, Xin;Ma, Peter X.
通讯作者:
Ma, Peter X.
DOI:
10.1051/jphys:01988004902033300
发表时间:
1988-02-01
期刊:
JOURNAL DE PHYSIQUE
影响因子:
--
作者:
DJABOUROV, M;LEBLOND, J;PAPON, P
通讯作者:
PAPON, P
影响因子:
6
作者:
Bayless, KJ;Salazar, R;Davis, GE
通讯作者:
Davis, GE
影响因子:
19
作者:
Dong, Yixiao;Sigen, A.;Gurtner, Geoffrey C.
通讯作者:
Gurtner, Geoffrey C.
DOI:
10.1051/jphyslet:019800041012027900
发表时间:
1980-01-01
期刊:
JOURNAL DE PHYSIQUE LETTRES
影响因子:
--
作者:
DUMAS, J;BACRI, JC
通讯作者:
BACRI, JC