Two intrathecal transplants of bone marrow mononuclear cells produce motor improvement in an acute and severe model of spinal cord injury

Recuperación motora después de dos trasplantes de células mononucleares de la médula ósea, administrados en el espacio subaracnoideo, utilizando modelo de lesión aguda y grave de la médula espinal

Recuperação motora após dois transplantes de células mononucleares da medula óssea administrados no espaço subaracnóideo utilizando modelo de lesão traumática grave da medula espinal

OBJECTIVE: We studied transplants of bone marrow mononuclear cells (BMMC) by lumbar puncture (LP) in a severe model of spinal cord injury (SCI) using clip compression. METHODS: BMMCs or saline solution were transplanted by LP 48 hours and 9 days post injury. Motor function was evaluated by BBB scale, histological analysis by Nissl technique and the verification of cell migration by PCR analysis. RESULTS: The BBB had significantly improved in rats treated with BMMCs by LP compared with controls (p<0.001). The histological analysis did not showed difference in the lesional area between the groups. The PCR analysis was able to found BMMCs in the injury site. CONCLUSIONS: two BMMC transplants by LP improved motor function in a severe model of SCI and BMMC was found in the injury site.

Spinal cord injuries; Lumbar puncture; Bone marrow cells; Stem cells