PMID- 16509501 OWN - NLM STAT- MEDLINE DCOM- 20060317 LR - 20231120 IS - 0022-3085 (Print) IS - 0022-3085 (Linking) VI - 104 IP - 2 DP - 2006 Feb TI - Long-term recovery after bone marrow stromal cell treatment of traumatic brain injury in rats. PG - 272-7 AB - OBJECT: This study was designed to follow the effects of bone marrow stromal cell (BMSC) administration in rats after traumatic brain injury (TBI) for a 3-month period. METHODS: Forty adult female Wistar rats were injured by a controlled cortical impact and, 1 week later, were injected intravenously with one of three different doses of BMSCs (2 x 10(6), 4 x 10(6), or 8 x 10(6) cells per animal) obtained in male rats. Control rats received phosphate-buffered saline (PBS). Neurological function in these rats was studied using a neurological severity scale (NSS). The rats were killed 3 months after injury, and immunohistochemical stains were applied to brain samples to study the distribution of the BMSCs. Additional brain samples were analyzed by quantitative enzyme-linked immunosorbent assays to measure the expression of the growth factors brain-derived neurotrophic factor (BDNF) and nerve growth factor (NGF). Three months after injury, BMSCs were present in the injured brain and their number was significantly greater in animals that received 4 x 10(6) or 8 x 10(6) BMSCs than in animals that received 2 x 10(6) BMSCs. The cells were primarily distributed around the lesion boundary zone. Functional outcome was significantly better in rats that received 4 x 10(6) or 8 x 10(6) BMSCs, compared with control animals, although no improvement was seen in animals that received 2 x 10(6) BMSCs. All doses of BMSCs significantly increased the expression of BDNF but not that of NGF; however, this increase was significantly larger in animals that received 4 x 10(6) or 8 x 10(6) BMSCs than in controls or animals that received 2 x 10(6) BMSCs. CONCLUSIONS: In summary, when injected in rats after TBI, BMSCs are present in the brain 3 months later and significantly improve functional outcome. FAU - Mahmood, Asim AU - Mahmood A AD - Department of Neurosurgery, Henry Ford Health Sciences Center, Detroit, Michigan 48202, USA. nsaam@neuro.hfh.edu FAU - Lu, Dunyue AU - Lu D FAU - Qu, Changsheng AU - Qu C FAU - Goussev, Anton AU - Goussev A FAU - Chopp, Michael AU - Chopp M LA - eng PT - Journal Article PL - United States TA - J Neurosurg JT - Journal of neurosurgery JID - 0253357 SB - IM MH - Animals MH - *Bone Marrow Transplantation MH - Brain Injuries/pathology/*therapy MH - Cell Proliferation MH - Female MH - Immunohistochemistry MH - Rats MH - Rats, Wistar MH - Stromal Cells/*transplantation MH - Treatment Outcome EDAT- 2006/03/03 09:00 MHDA- 2006/03/18 09:00 CRDT- 2006/03/03 09:00 PHST- 2006/03/03 09:00 [pubmed] PHST- 2006/03/18 09:00 [medline] PHST- 2006/03/03 09:00 [entrez] AID - 10.3171/jns.2006.104.2.272 [doi] PST - ppublish SO - J Neurosurg. 2006 Feb;104(2):272-7. doi: 10.3171/jns.2006.104.2.272.