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Adult Skeletal Muscle Stem Cell Migration Is Mediated by a Blebbing/Amoeboid Mechanism.
MedLine Citation:
PMID:  21453013     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Abstract Adult skeletal muscle possesses a resident stem cell population called satellite cells, which are responsible for tissue repair following damage. Satellite cell migration is crucial in promoting rapid tissue regeneration, but it is a poorly understood process. Furthermore, the mechanisms facilitating satellite cell movement have yet to be elucidated. This study investigates the process of satellite cell migration, revealing that they undergo two distinct phases of movement, first under the basal lamina and then rapidly increasing their velocity when on the myofiber surface. Most significantly, we show that satellite cells move using a highly dynamic blebbing or amoeboid-based mechanism and not via lamellipodia-mediated propulsion. We show that nitric oxide and noncanonical Wnt signaling pathways are necessary for regulating the formation of blebs and the migration of satellite cells. In summary, we propose that the formation of blebs and their necessity for satellite cell migration has significant implications in the future development of therapeutic regimes aimed at promoting skeletal muscle regeneration.
Authors:
Anthony Otto; Henry Collins-Hooper; Anand Patel; Philip R Dash; Ketan Patel
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-3-31
Journal Detail:
Title:  Rejuvenation research     Volume:  -     ISSN:  1557-8577     ISO Abbreviation:  -     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-4-1     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101213381     Medline TA:  Rejuvenation Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
1 School of Biological Sciences, Hopkins Building, University of Reading , Whiteknights Campus, Reading, Berkshire, RG6 6UB, UK .
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