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Connective tissue cells, but not muscle cells, are involved in establishing the proximo-distal outcome of limb regeneration in the axolotl.
MedLine Citation:
PMID:  23293283     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
During salamander limb regeneration, only the structures distal to the amputation plane are regenerated, a property known as the rule of distal transformation. Multiple cell types are involved in limb regeneration; therefore, determining which cell types participate in distal transformation is important for understanding how the proximo-distal outcome of regeneration is achieved. We show that connective tissue-derived blastema cells obey the rule of distal transformation. They also have nuclear MEIS, which can act as an upper arm identity regulator, only upon upper arm amputation. By contrast, myogenic cells do not obey the rule of distal transformation and display nuclear MEIS upon amputation at any proximo-distal level. These results indicate that connective tissue cells, but not myogenic cells, are involved in establishing the proximo-distal outcome of regeneration and are likely to guide muscle patterning. Moreover, we show that, similarly to limb development, muscle patterning in regeneration is influenced by β-catenin signalling.
Authors:
Eugen Nacu; Mareen Glausch; Huy Quang Le; Febriyani Fiain Rochel Damanik; Maritta Schuez; Dunja Knapp; Shahryar Khattak; Tobias Richter; Elly M Tanaka
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Development (Cambridge, England)     Volume:  140     ISSN:  1477-9129     ISO Abbreviation:  Development     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-01-07     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8701744     Medline TA:  Development     Country:  England    
Other Details:
Languages:  eng     Pagination:  513-8     Citation Subset:  IM    
Affiliation:
Center for Regenerative Therapies Dresden, Fetscherstraße 105, 01307, Dresden, Germany.
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