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USF study finds stem cell combination therapy improves traumatic brain injury outcomes
Date:3/20/2014

as shown an ability to mobilize stem cells from bone marrow and then infiltrate injured tissues, promoting self-repair of neural cells, while hUBCs have been shown to suppress inflammation and promote cell growth.

The involvement of the immune system in the central nervous system to either stimulate repair or enhance molecular damage has been recognized as key to the progression of many neurological disorders, including TBI, as well as in neurodegenerative diseases such as Parkinson's disease, multiple sclerosis and some autoimmune diseases, the researchers report. Increased expression of MHCII positive cellscell members that secrete a family of molecules mediating interactions between the immune system's white blood cellshas been directly linked to neurodegeneration and cognitive decline in TBI.

"Our results showed that the combined therapy of hUBCs and G-CSF significantly reduced the TBI-induced loss of neuronal cells in the hippocampus," said Borlongan. "Therapy with hUBCs and G-CSF alone or in combination produced beneficial results in animals with experimental TBI. G-CSF alone produced only short-lived benefits, while hUBCs alone afforded more robust and stable improvements. However, their combination offered the best motor improvement in the laboratory animals."

"This outcome may indicate that the stem cells had more widespread biological action than the drug therapy," said Paul R. Sanberg, distinguished professor at USF and principal investigator of the Department of Defense funded project. "Regardless, their combination had an apparent synergistic effect and resulted in the most effective amelioration of TBI-induced behavioral deficits."

The researchers concluded that additional studies of this combination therapy are warranted in order to better understand their modes of action. While this research focused on motor improvements, they suggested that future combination therapy research should also include analysis of cogn
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Contact: Anne DeLotto Baier
abaier@health.usf.edu
813-974-3303
University of South Florida (USF Innovation)
Source:Eurekalert

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