Activin A Secreted From Peripheral Nerve Fibroblasts Promotes Proliferation and Migration of Schwann Cells

被引:16
|
作者
Li, Yan [1 ,2 ]
Cheng, Zhenghang [2 ]
Yu, Fanhui [2 ]
Zhang, Qi [2 ]
Yu, Shu [2 ]
Ding, Fei [2 ]
He, Qianru [2 ]
机构
[1] Soochow Univ, Sch Biol & Basic Med Sci, Suzhou, Peoples R China
[2] Nantong Univ, Coinnovat Ctr Neuroregenerat, Key Lab Neuroregenerat Jiangsu, Minist Educ, Nantong, Peoples R China
来源
关键词
activin A; fibroblasts; Schwann cells; proliferation; migration; cytokine array; peripheral nervous system; NEURITE OUTGROWTH;
D O I
10.3389/fnmol.2022.859349
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
The peripheral nervous system has remarkable regenerative capabilities. Schwann cells and fibroblasts are known to play crucial roles in these processes. In this study, we delineated the differential effects of peripheral nerve fibroblasts and cardiac fibroblasts on Schwann cells. We found that peripheral nerve fibroblasts significantly promoted Schwann cell proliferation and migration compared with cardiac fibroblasts. The cytokine array results identified 32 of 67 proteins that were considered differentially expressed in peripheral nerve fibroblasts versus cardiac fibroblasts. Among them, 25 were significantly upregulated in peripheral nerve fibroblasts compared with cardiac fibroblasts. Activin A, the protein with the greatest differential expression, clearly co-localized with fibroblasts in the in vivo sciatic never injury rat model. In vitro experiments proved that activin A secreted from nerve fibroblasts is the key factor responsible for boosting proliferation and migration of Schwann cells through ALK4, ALK5, and ALK7. Overall, these findings suggest that peripheral nerve fibroblasts and cardiac fibroblasts exhibit different patterns of cytokine secretion and activin A secreted from peripheral nerve fibroblasts can promote the proliferation and migration of Schwann cells.
引用
收藏
页数:14
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