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Bioengineering of injectable encapsulated aggregates of pluripotent stem cells for therapy of myocardial infarction.


ABSTRACT: It is difficult to achieve minimally invasive injectable cell delivery while maintaining high cell retention and animal survival for in vivo stem cell therapy of myocardial infarction. Here we show that pluripotent stem cell aggregates pre-differentiated into the early cardiac lineage and encapsulated in a biocompatible and biodegradable micromatrix, are suitable for injectable delivery. This method significantly improves the survival of the injected cells by more than six-fold compared with the conventional practice of injecting single cells, and effectively prevents teratoma formation. Moreover, this method significantly enhances cardiac function and survival of animals after myocardial infarction, as a result of a localized immunosuppression effect of the micromatrix and the in situ cardiac regeneration by the injected cells.

SUBMITTER: Zhao S 

PROVIDER: S-EPMC5095349 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature

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Bioengineering of injectable encapsulated aggregates of pluripotent stem cells for therapy of myocardial infarction.

Zhao Shuting S   Xu Zhaobin Z   Wang Hai H   Reese Benjamin E BE   Gushchina Liubov V LV   Jiang Meng M   Agarwal Pranay P   Xu Jiangsheng J   Zhang Mingjun M   Shen Rulong R   Liu Zhenguo Z   Weisleder Noah N   He Xiaoming X  

Nature communications 20161027


It is difficult to achieve minimally invasive injectable cell delivery while maintaining high cell retention and animal survival for in vivo stem cell therapy of myocardial infarction. Here we show that pluripotent stem cell aggregates pre-differentiated into the early cardiac lineage and encapsulated in a biocompatible and biodegradable micromatrix, are suitable for injectable delivery. This method significantly improves the survival of the injected cells by more than six-fold compared with the  ...[more]

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