Nerve bundle formation during the promotion of peripheral nerve regeneration: collagen VI-neural cell adhesion molecule 1 interaction.

Nerve bundle formation during the promotion of peripheral nerve regeneration: collagen VI-neural cell adhesion molecule 1 interaction.
复制标题

促进周围神经再生过程中的神经束形成:胶原VI-神经细胞粘附分子1相互作用。

DOI:
10.4103/1673-5374.324861
复制
发表时间:
2022-05
影响因子:
6.1
通讯作者:
Zou JL
Zou JL
中科院分区:
医学2区
文献类型:
--
作者:
Sun JH;Huang M;Fang Z;Li TX;Wu TT;Chen Y;Quan DP;Xu YY;Wang YM;Yang Y;Zou JL

文献摘要

参考文献

相似文献

神经束的形成是周围神经再生过程中神经网络组织的重要组成部分,神经束的形成部分受神经细胞粘附分子1(NCAM 1)的调控。然而,很少有人知道细胞外基质(ECM)微环境如何影响这一过程。在这里,我们将背根神经节组织块接种在不同的ECM基质上,包括外周神经ECM衍生的基质凝胶、基质胶、层粘连蛋白521、胶原蛋白I和胶原蛋白IV,并观察到在外周神经ECM衍生的环境中生长的排列良好的轴突束。我们证实NCAM 1是必要的,但不足以触发这种现象。蛋白质相互作用测定鉴定了胶原VI作为NCAM 1在轴突成束调节中的细胞外伴侣。胶原VI通过直接结合FNIII结构域与NCAM 1相互作用,从而增加NCAM 1在轴膜处的稳定性。我们在大鼠坐骨神经缺损模型上的体内实验也证明了用10 mg/mL Matrigel和20 μg/mL胶原VI处理后神经束再生有序,投射准确性和功能恢复改善。这些发现表明胶原VI-NCAM 1通路在神经束形成中起调节作用。本研究于2019年4月30日获得广州医科大学动物伦理委员会批准(批件号:GY 2019048)。
The formation of nerve bundles, which is partially regulated by neural cell adhesion molecule 1 (NCAM1), is important for neural network organization during peripheral nerve regeneration. However, little is known about how the extracellular matrix (ECM) microenvironment affects this process. Here, we seeded dorsal root ganglion tissue blocks on different ECM substrates of peripheral nerve ECM-derived matrix-gel, Matrigel, laminin 521, collagen I, and collagen IV, and observed well-aligned axon bundles growing in the peripheral nerve ECM-derived environment. We confirmed that NCAM1 is necessary but not sufficient to trigger this phenomenon. A protein interaction assay identified collagen VI as an extracellular partner of NCAM1 in the regulation of axonal fasciculation. Collagen VI interacted with NCAM1 by directly binding to the FNIII domain, thereby increasing the stability of NCAM1 at the axolemma. Our in vivo experiments on a rat sciatic nerve defect model also demonstrated orderly nerve bundle regeneration with improved projection accuracy and functional recovery after treatment with 10 mg/mL Matrigel and 20 μg/mL collagen VI. These findings suggest that the collagen VI-NCAM1 pathway plays a regulatory role in nerve bundle formation. This study was approved by the Animal Ethics Committee of Guangzhou Medical University (approval No. GY2019048) on April 30, 2019.
不同的区域控制转基因小鼠不同组织中α1(VI)胶原蛋白启动子的转录激活。
DOI: 10.1083/jcb.135.4.1163
发表时间: 1996-11
期刊: The Journal of cell biology
影响因子: --
作者:
Braghetta P;Fabbro C;Piccolo S;Marvulli D;Bonaldo P;Volpin D;Bressan GM
通讯作者: Bressan GM
DOI: 10.1016/j.jmb.2008.01.030
发表时间: 2008-03-21
影响因子: 5.6
作者:
Carafoli, Federico;Saffell, Jane L.;Hohenester, Erhard
通讯作者: Hohenester, Erhard
DOI: 10.3389/fnana.2018.00040
发表时间: 2018
影响因子: 2.9
作者:
Ferrer-Ferrer M;Dityatev A
通讯作者: Dityatev A
DOI: 10.1016/j.devcel.2018.10.028
发表时间: 2019-01-28
期刊: DEVELOPMENTAL CELL
影响因子: 11.8
作者:
Chen, Chun-Hao;Hsu, Hao-Wei;Pan, Chun-Liang
通讯作者: Pan, Chun-Liang
DOI: 10.1126/science.3576199
发表时间: 1987-05-15
期刊: SCIENCE
影响因子: 56.9
作者:
CUNNINGHAM, BA;HEMPERLY, JJ;EDELMAN, GM
通讯作者: EDELMAN, GM