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Complete repair of dystrophic skeletal muscle by mesoangioblasts with enhanced migration ability
- Source :
- The Journal of Cell Biology. July 17, 2006, Vol. 174 Issue 2, p231, 13 p.
- Publication Year :
- 2006
-
Abstract
- Efficient delivery of cells to target tissues is a major problem in cell therapy. We report that enhancing delivery of mesoangioblasts leads to a complete reconstitution of downstream skeletal muscles in a mouse model of severe muscular dystrophy ([alpha]-sarcoglycan ko). Mesoangioblasts, vessel-associated stem cells, were exposed to several cytokines, among which stromalderived factor (SDF) 1 or tumor necrosis factor (TNF) [alpha] were the most potent in enhancing transmigration in vitro and migration into dystrophic muscle in vivo. Transient expression of [alpha]4 integrins or L-selectin also increased several fold migration both in vitro and in vivo. Therefore, combined pretreatment with SDF-1 or TNF-[alpha] and expression of [alpha]4 integrin leads to massive colonization (>50%) followed by reconstitution of >80% of [alpha]-sarcoglycan--expressing fibers, with a fivefold increase in efficiency in comparison with control cells. This study defines the requirements for efficient engraftment of mesoangioblasts and offers a new potent tool to optimize future cell therapy protocols for muscular dystrophies.
- Subjects :
- Muscles -- Research
Cellular therapy -- Research
Biological sciences
Subjects
Details
- Language :
- English
- ISSN :
- 00219525
- Volume :
- 174
- Issue :
- 2
- Database :
- Gale General OneFile
- Journal :
- The Journal of Cell Biology
- Publication Type :
- Academic Journal
- Accession number :
- edsgcl.148980507