Activation of Endogenous Neurogenesis and Angiogenesis by Basic Fibroblast Growth Factor-chitosan Gel in an Adult Rat Model of Ischemic Stroke

Overview

Journal Neural Regen Res

Date 2023 Jul 25

PMID 37488905

Authors

Hongmei Duan

Shulun Li

Peng Hao

Fei Hao

Wen Zhao

Yudan Gao

Hui Qiao

Yiming Gu

Yang Lv

Xinjie Bao

Kin Chiu

Kwok-Fai So

Zhaoyang Yang

Xiaoguang Li

Affiliations

Soon will be listed here.

Abstract

Attempts have been made to use cell transplantation and biomaterials to promote cell proliferation, differentiation, migration, and survival, as well as angiogenesis, in the context of brain injury. However, whether bioactive materials can repair the damage caused by ischemic stroke by activating endogenous neurogenesis and angiogenesis is still unknown. In this study, we applied chitosan gel loaded with basic fibroblast growth factor to the stroke cavity 7 days after ischemic stroke in rats. The gel slowly released basic fibroblast growth factor, which improved the local microenvironment, activated endogenous neural stem/progenitor cells, and recruited these cells to migrate toward the penumbra and stroke cavity and subsequently differentiate into neurons, while enhancing angiogenesis in the penumbra and stroke cavity and ultimately leading to partial functional recovery. This study revealed the mechanism by which bioactive materials repair ischemic strokes, thus providing a new strategy for the clinical application of bioactive materials in the treatment of ischemic stroke.

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