Dual-function injectable angiogenic biomaterial for the repair of brain tissue following stroke.

Dual-function injectable angiogenic biomaterial for the repair of brain tissue following stroke.
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双重功能可注射的血管生成生物材料,用于中风后修复脑组织。

DOI:
10.1038/s41563-018-0083-8
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发表时间:
2018-07
期刊:
影响因子:
41.2
通讯作者:
Segura T
Segura T
中科院分区:
材料科学1区
文献类型:
--
作者:
Nih LR;Gojgini S;Carmichael ST;Segura T

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中风是导致残疾的主要原因,因为大脑再生受损组织的能力有限。中风后,炎症和免疫反应增加,再加上血管生成和神经元生长严重受限,导致中风腔内缺乏正常脑组织。在成人中,治疗性血管生成材料已被用于通过血管网络的形成来修复缺血组织。然而,治疗性血管生成材料是否能再生脑组织并促进神经修复尚不清楚。在这里,我们展示了将工程免疫调节血管生成生物材料直接输送到中风腔促进组织的新生形成,导致沿生成血管的轴突网络。这种再生组织通过已建立的轴突网络产生功能恢复。因此,这种生物材料方法在先前死亡的组织中产生了再生功能神经元连接的血管化网络,为使用血管生成材料修复其他神经病变组织奠定了基础。
Stroke is the primary cause of disability due to the brain’s limited ability to regenerate damaged tissue. After stroke, an increased inflammatory and immune response coupled with severely limited angiogenesis and neuronal growth results in a stroke cavity devoid of normal brain tissue. In the adult, therapeutic angiogenic materials have been used to repair ischemic tissues through the formation of vascular networks. However, whether a therapeutic angiogenic material can regenerate brain tissue and promote neural repair is poorly understood. Here we show that the delivery of an engineered immune-modulating angiogenic biomaterial material directly to the stroke cavity promotes tissue formation de novo, resulting in axonal networks along generated blood vessels. This regenerated tissue produces functional recovery through the established axonal networks. Thus, this biomaterials approach generates a vascularized network of regenerated functional neuronal connections within previously dead tissue, laying the groundwork for the use of angiogenic materials to repair other neurologically diseased tissues.
DOI: 10.2147/dddt.s56071
发表时间: 2015
期刊: Drug design, development and therapy
影响因子: --
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Fluri F;Schuhmann MK;Kleinschnitz C
通讯作者: Kleinschnitz C
DOI: 10.1038/nnano.2013.205
发表时间: 2013-11
影响因子: 38.3
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