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Application of antibody-conjugated small intestine submucosa to capture urine-derived stem cells for bladder repair in a rabbit model

引用

Bioactive Materials 2022年第8期7卷 443-455页

作者： Yu-Ting Song Yan-Qing Li Mao-Xuan Tian Jun-Gen Hu Xiu-Ru Zhang Peng-Cheng Liu Xiu-Zhen Zhang Qing-Yi Zhang Li Zhou Long-Mei Zhao Jesse Li-Ling Hui-Qi Xie Laboratory of Stem Cell and tissue engineering Orthopedic Research InstituteMed-X Center for MaterialsState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengduSichuan610041China Department of Aesthetic Surgery The People’s Hospital of PengzhouChengduSichuan611930China Surgery of Spine and Spinal Cord Henan Provincial People’s HospitalZhengzhouHenan450000China Department of Burn and Plastic Surgery West China HospitalSichuan UniversityChengduSichuan610041China Research Core Facility of West China Hospital Sichuan UniversityChengduSichuan610041China Department of Medical Genetics and Prenatal Diagnosis West China Second HospitalSichuan UniversityChengduSichuan610041China

The need for bladder reconstruction and side effects of cystoplasty have spawned the demand for the development of alternative material substitutes.Biomaterials such as submucosa of small intestine(SIS)have been widely used as patches for bladder repair,but the outcomes are not fully satisfactory.To capture stem cells in situ has been considered as a promising strategy to speed up the process of re-cellularization and functionalization.In this study,we have developed an anti-CD29 antibody-conjugated SIS scaffold(AC-SIS)which is capable of specifically capturing urine-derived stem cells(USCs)in situ for tissue repair and regeneration.The scaffold has exhibited effective capture capacity and sound biocompatibility.In vivo experiment proved that the AC-SIS scaffold could promote rapid endothelium healing and smooth muscle regeneration.The endogenous stem cell capturing scaffolds has thereby provided a new revenue for developing effective and safer bladder patches.

关键词： Regenerative medicine bladder tissue engineering Scaffold Antibody-conjugated

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