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- W2783532939 abstract "Stem cell treatment for critical limb ischemia yields a limited therapeutic effect due to cell loss and dysfunction caused by local ischemic environment. Biomimetic scaffolds emerge as ideal cell delivery vehicles for regulating cell fate via mimicking the components of stem cell niche. Herein, we prepared a bioactive hydrogel by mixing chitosan and hyaluronic acid that is immobilized with C domain peptide of insulin-like growth factor 1 (IGF-1C) and examined whether this hydrogel could augment stem cell survival and therapeutic potential. Our results showed that IGF-1C-modified hydrogel increased in vitro viability and proangiogenic activity of adipose-derived stromal cells (ADSCs). Moreover, cotransplantation of hydrogel and ADSCs into ischemic hind limbs of mice effectively ameliorated blood perfusion and muscle regeneration, leading to superior limb salvage. These therapeutic effects can be ascribed to improved ADSC retention, angiopoientin-1 secretion, and neovascularization, as well as reduced inflammatory cell infiltration. Additionally, hydrogel enhanced antifibrotic activity of ADSCs, as evidenced by decreased collagen accumulation at late stage. Together, our findings indicate that composite hydrogel modified by IGF-1C could promote survival and proangiogenic capacity of ADSCs and thereby represents a feasible option for cell-based treatment for critical limb ischemia." @default.
- W2783532939 created "2018-01-26" @default.
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- W2783532939 date "2018-01-23" @default.
- W2783532939 modified "2023-10-16" @default.
- W2783532939 title "Composite Hydrogel Modified by IGF-1C Domain Improves Stem Cell Therapy for Limb Ischemia" @default.
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- W2783532939 doi "https://doi.org/10.1021/acsami.7b17533" @default.
- W2783532939 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/29327586" @default.
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