PMID- 17578288 OWN - NLM STAT- MEDLINE DCOM- 20090507 LR - 20070620 IS - 1002-1892 (Print) IS - 1002-1892 (Linking) VI - 21 IP - 5 DP - 2007 May TI - [Experimental study on transplantation of embryonic stem cells in treating spinal cord injury]. PG - 487-91 AB - OBJECTIVE: To observe the effect of transplantation of embryonic stem cell (ES) on neurological functional recovery of injured spinal cord in adult mouse. METHODS: The ES cells were cultured and induced in vitro. Fifty C57/BL6J mice were made animal model of semi-cut mice of T9,10. The ES cell-derived neural precursors cells were transplanted into the vertebral canal around injured spinal cord semi-cut mice. Twenty-eight C57/BL6J mice were randomly divided into three groups: sham operation group(group A, n=9), operation/cell group (group B, n = 10), and operation/DMEM group (group C, n = 9). RT-PCR analysis, X-gal staining and immunofluorescence were used to observe the cells survival and differentiation in the spinal crod. BBB test was performed to study functional improvement. RESULTS: ES cells induced and cultured in vitro displayed clonal growth with circle or ovoid shape and had one or more nucleoli. RT-PCR result showed that the induced ES cells expressed mRNA of Nestin and microtubule-associated protein, but did not express glial fibrillory acidic protein (GFAP). There was statistically significant difference in BBB scoring between group A and groups B, C after operation (P <0.01). There was statistically significant difference in BBB scoring at 1, 2 and 4 weeks of operation (P < 0.01), but no statistically significant difference at 6 and 8 weeks of operation between groups B and C (P>0.05). The X-gal staining results were positive in group B and negative in groups A and C. The immunoflurescence result showed neurofilament green fluor and no expression of GFAP in injured spinal cord region. CONCLUSION: After transplantation, ES cell-derived cells can survive, transfer into the injury position, and differentiate into neurons, but spinal cord function has no obvious improvement. FAU - Yang, Jianhua AU - Yang J AD - Orthopedics Department, the First Affiliated Hospital, Jiamusi University, Jiamusi Heilongjiang, 154002, P. R. China. jianhua01@163.com FAU - Li, Changde AU - Li C FAU - Zhai, Raosheng AU - Zhai R LA - chi PT - English Abstract PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi JT - Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery JID - 9425194 RN - 0 (Microtubule-Associated Proteins) RN - 0 (Nerve Tissue Proteins) SB - IM MH - Animals MH - Cell Differentiation MH - Cell Transplantation/methods MH - Cells, Cultured MH - Embryonic Stem Cells/*cytology MH - Female MH - Hindlimb/physiopathology MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Microtubule-Associated Proteins/biosynthesis MH - Nerve Tissue Proteins/biosynthesis MH - Neurons/*cytology/metabolism MH - Random Allocation MH - Recovery of Function MH - Reverse Transcriptase Polymerase Chain Reaction MH - Spinal Cord Injuries/pathology/physiopathology/*surgery MH - *Stem Cell Transplantation EDAT- 2007/06/21 09:00 MHDA- 2009/05/08 09:00 CRDT- 2007/06/21 09:00 PHST- 2007/06/21 09:00 [pubmed] PHST- 2009/05/08 09:00 [medline] PHST- 2007/06/21 09:00 [entrez] PST - ppublish SO - Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi. 2007 May;21(5):487-91.