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Bone marrow stromal cells enhance differentiation of cocultured neurosphere cells and promote regeneration of injured spinal cord
Author(s) -
Wu Sufan,
Suzuki Yoshihisa,
Ejiri Yoko,
Noda Toru,
Bai Hongliang,
Kitada Masaaki,
Kataoka Kazuya,
Ohta Masayoshi,
Chou Hirotomi,
Ide Chizuka
Publication year - 2003
Publication title -
journal of neuroscience research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.72
H-Index - 160
eISSN - 1097-4547
pISSN - 0360-4012
DOI - 10.1002/jnr.10587
Subject(s) - neurosphere , regeneration (biology) , mesenchymal stem cell , spinal cord , stromal cell , bone marrow , transplantation , stem cell , biology , microbiology and biotechnology , medicine , immunology , pathology , in vitro , neuroscience , adult stem cell , endothelial stem cell , surgery , biochemistry
Transplantation of bone marrow stromal cells (MSCs) has been regarded as a potential approach for promoting nerve regeneration. In the present study, we investigated the influence of MSCs on spinal cord neurosphere cells in vitro and on the regeneration of injured spinal cord in vivo by grafting. MSCs from adult rats were cocultured with fetal spinal cord‐derived neurosphere cells by either cell mixing or making monolayered‐feeder cultures. In the mixed cell cultures, neuroshpere cells were stimulated to develop extensive processes. In the monolayered‐feeder cultures, numerous processes from neurosphere cells appeared to be attracted to MSCs. In an in vivo experiment, grafted MSCs promoted the regeneration of injured spinal cord by enhancing tissue repair of the lesion, leaving apparently smaller cavities than in controls. Although the number of grafted MSCs gradually decreased, some treated animals showed remarkable functional recovery. These results suggest that MSCs might have profound effects on the differentiation of neurosphere cells and be able to promote regeneration of the spinal cord by means of grafting. © 2003 Wiley‐Liss, Inc.