A self-assembly peptide nanofibrous scaffold reduces inflammatory response and promotes functional recovery in a mouse model of intracerebral hemorrhage

Nanomedicine : Nanotechnology, Biology, and Medicine
Na ZhangWutian Wu

Abstract

Self-assembly peptide nanofibrous scaffold (SAPNS), such as RADA16-I, has been shown to reduce acute brain injury and enhance functional recovery in rat intracerebral hemorrhage (ICH) models. The acidic property of RADA16-I, however, limits its application in patients. In the present study, by using a modified neutral SAPNS (the RADA16mix) in collagenase IV induced ICH mice, we detected there were less microglial and apoptotic cells in mice injected with RADA16mix, meanwhile, more cells survived in this group. In addition, behavioral tests indicated that mice treated with RADA16mix showed better functional recovery than RADA16-I. Local delivery of RADA16mix reduces acute brain injury by lowering the number of apoptotic cells, decreasing glial reaction, reducing inflammatory response and, therefore promotes functional recovery. Moreover, new nerve fibers have grown into this new SAPNS, which indicates RADA16mix is able to serve as a bridge for nerve fibers to grow through. Acute brain injury, such as intracerebral hemorrhage is a serious problem. In this work, self-assembly peptide nanofibrous scaffold (SAPNS) were tested in a rat model to aid functional recovery. Several items have been considered, such as histology, brain wate...Continue Reading

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Citations

Nov 13, 2018·Journal of Biomedical Materials Research. Part a·Mansooreh-Sadat SeyedkarimiShadab Bagheri-Khoulenjani
Apr 26, 2019·Journal of Biomaterials Science. Polymer Edition·Rongrong WangZhuoyue Chen
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Dec 19, 2020·Translational Neuroscience·Jianjun WangYinjuan Tang
Dec 19, 2020·Translational Neuroscience·Jianjun WangYinjuan Tang
Oct 23, 2020·Advanced Drug Delivery Reviews·Xin DingPeiyan Yuan

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