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ProBDNF inhibits collective migration and chemotaxis of rat Schwann cells.
Ding, You-Quan; Li, Xuan-Yang; Xia, Guan-Nan; Ren, Hong-Yi; Zhou, Xin-Fu; Su, Bing-Yin; Qi, Jian-Guo.
Afiliación
  • Ding YQ; Department of Histology, Embryology and Neurobiology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, China.
  • Li XY; Department of Histology, Embryology and Neurobiology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, China.
  • Xia GN; Department of Histology, Embryology and Neurobiology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, China.
  • Ren HY; Department of Histology, Embryology and Neurobiology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, China.
  • Zhou XF; Sansom Institute, School of Pharmacy and Medical Sciences, University of South Australia, City East Campus, GPO Box 2471, Adelaide, SA 5001, Australia.
  • Su BY; Sichuan Province Development and Regeneration Key Laboratory, Chengdu Medical College, Chengdu, Sichuan 610500, China.
  • Qi JG; Department of Histology, Embryology and Neurobiology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, China. Electronic address: jgqi@scu.edu.cn.
Tissue Cell ; 48(5): 503-10, 2016 Oct.
Article en En | MEDLINE | ID: mdl-27503312
Schwann cell migration, including collective migration and chemotaxis, is essential for the formation of coordinate interactions between Schwann cells and axons during peripheral nerve development and regeneration. Moreover, limited migration of Schwann cells imposed a serious obstacle on Schwann cell-astrocytes intermingling and spinal cord repair after Schwann cell transplantation into injured spinal cords. Recent studies have shown that mature brain-derived neurotrophic factor, a member of the neurotrophin family, inhibits Schwann cell migration. The precursor form of brain-derived neurotrophic factor, proBDNF, was expressed in the developing or degenerating peripheral nerves and the injured spinal cords. Since "the yin and yang of neurotrophin action" has been established as a common sense, proBDNF would be expected to promote Schwann cell migration. However, we found, in the present study, that exogenous proBDNF also inhibited in vitro collective migration and chemotaxis of RSC 96 cells, a spontaneously immortalized rat Schwann cell line. Moreover, proBDNF suppressed adhesion and spreading of those cells. At molecular level, proBDNF inhibits F-actin polymerization and focal adhesion dynamics in cultured RSC 96 cells. Therefore, our results suggested a special case against the classical opinion of "the yin and yang of neurotrophin action" and implied that proBDNF might modulate peripheral nerve development or regeneration and spinal cord repair through perturbing native or transplanted Schwann cell migration.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Nervios Periféricos / Traumatismos de la Médula Espinal / Quimiotaxis / Factor Neurotrófico Derivado del Encéfalo Límite: Animals Idioma: En Revista: Tissue Cell Año: 2016 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Nervios Periféricos / Traumatismos de la Médula Espinal / Quimiotaxis / Factor Neurotrófico Derivado del Encéfalo Límite: Animals Idioma: En Revista: Tissue Cell Año: 2016 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido