PMID- 23826999 OWN - NLM STAT- MEDLINE DCOM- 20150511 LR - 20211021 IS - 1757-6512 (Electronic) IS - 1757-6512 (Linking) VI - 4 IP - 4 DP - 2013 Jul 5 TI - Effective combination of human bone marrow mesenchymal stem cells and minocycline in experimental autoimmune encephalomyelitis mice. PG - 77 LID - 10.1186/scrt228 [doi] AB - INTRODUCTION: Multiple sclerosis (MS) is the most common inflammatory demyelinating disorder of the central nervous system (CNS). Minocycline ameliorates the clinical severity of MS and exhibits antiinflammatory, neuroprotective activities, and good tolerance for long-term use, whereas it is toxic to the CNS. Recently, the immunomodulation and neuroprotection capabilities of human bone marrow mesenchymal stem cells (hBM-MSCs) were shown in experimental autoimmune encephalomyelitis (EAE). In this study, we evaluated whether the combination of hBM-MSCs and a low-dose minocycline could produce beneficial effects in EAE mice. METHODS: The sensitivity of hBM-MSCs to minocycline was determined by an established cell-viability assay. Minocycline-treated hBM-MSCs were also characterized with flow cytometry by using MSC surface markers and analyzed for their multiple differentiation capacities. EAE was induced in C57BL/6 mice by using immunization with MOG35-55. Immunopathology assays were used to detect the inflammatory cells, demyelination, and neuroprotection. Interferon gamma (IFN-gamma)/tumor necrosis factor alpha (TNF-alpha) and interleukin-4 (IL-4)/interleukin-10 (IL-10), the hallmark cytokines that direct Th1 and Th2 development, were detected with enzyme-linked immunosorbent assay (ELISA). terminal dUTP nick-end labeling (TUNEL) staining was performed to elucidate the cell apoptosis in the spinal cords of EAE mice. RESULTS: Minocycline did not affect the viability, surface phenotypes, or differentiation capacity of hBM-MSCs, while minocycline affected the viability of astrocytes at a high dose. In vivo efficacy experiments showed that combined treatment, compared to the use of minocycline or hBM-MSCs alone, resulted in a significant reduction in clinical scores, along with attenuation of inflammation, demyelination, and neurodegeneration. Moreover, the combined treatment with hBM-MSCs and minocycline enhanced the immunomodulatory effects, which suppressed proinflammatory cytokines (IFN-gamma, TNF-alpha) and conversely increased anti-inflammatory cytokines (IL-4, IL-10). In addition, TUNEL staining also demonstrated a significant decrease of the number of apoptotic cells in the combined treatment compared with either treatment alone. CONCLUSIONS: The combination of hBM-MSCs and minocycline provides a novel experimental protocol to enhance the therapeutic effects in MS. FAU - Hou, Yun AU - Hou Y FAU - Ryu, Chung Heon AU - Ryu CH FAU - Park, Kwang Ywel AU - Park KY FAU - Kim, Seong Muk AU - Kim SM FAU - Jeong, Chang Hyun AU - Jeong CH FAU - Jeun, Sin-Soo AU - Jeun SS LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130705 PL - England TA - Stem Cell Res Ther JT - Stem cell research & therapy JID - 101527581 RN - 0 (Anti-Bacterial Agents) RN - FYY3R43WGO (Minocycline) SB - IM MH - Animals MH - Anti-Bacterial Agents/*therapeutic use MH - Apoptosis MH - Bone Marrow Cells/*metabolism MH - Cell Differentiation MH - Disease Models, Animal MH - Encephalomyelitis, Autoimmune, Experimental/genetics/*metabolism MH - Humans MH - Mesenchymal Stem Cell Transplantation/*methods MH - Mesenchymal Stem Cells/*metabolism MH - Mice MH - Mice, Inbred C57BL MH - Minocycline/*therapeutic use PMC - PMC3854709 EDAT- 2013/07/06 06:00 MHDA- 2015/05/12 06:00 PMCR- 2013/07/05 CRDT- 2013/07/06 06:00 PHST- 2012/12/07 00:00 [received] PHST- 2013/07/01 00:00 [accepted] PHST- 2013/07/06 06:00 [entrez] PHST- 2013/07/06 06:00 [pubmed] PHST- 2015/05/12 06:00 [medline] PHST- 2013/07/05 00:00 [pmc-release] AID - scrt228 [pii] AID - 10.1186/scrt228 [doi] PST - epublish SO - Stem Cell Res Ther. 2013 Jul 5;4(4):77. doi: 10.1186/scrt228.