Resumen
Why mammals have poor regenerative ability has remained a long-standing question in biology. In regenerating vertebrates, injury can induce a process known as epimorphic regeneration to replace damaged structures. Using a 4-mm ear punch assay across multiple mammalian species, here we show that several Acomys spp. (spiny mice) and Oryctolagus cuniculus completely regenerate tissue, whereas other rodents including MRL/MpJ 'healer' mice heal similar injuries by scarring. We demonstrate ear-hole closure is independent of ear size, and closure rate can be modelled with a cubic function. Cellular and genetic analyses reveal that injury induces blastema formation in Acomys cahirinus. Despite cell cycle re-entry in Mus musculus and A. cahirinus, efficient cell cycle progression and proliferation only occurs in spiny mice. Together, our data unite blastema-mediated regeneration in spiny mice with regeneration in other vertebrates such as salamanders, newts and zebrafish, where all healthy adults regenerate in response to injury.
| Idioma original | English |
|---|---|
| Número de artículo | 11164 |
| Publicación | Nature Communications |
| Volumen | 7 |
| DOI | |
| Estado | Published - abr 25 2016 |
Nota bibliográfica
Funding Information:We thank Matt Snider, Zara Ashraf, Malik Guidry, John Ewoi and Stanley Marete for help with live-trapping, animal care and data collection. We thank Tiberius for reliable transport and Edward Scott for the gift of MRL/MpJ mice. We also thank Peter Jessel for kindly allowing us access to his property and for fruitful discussions. Funding for this work was provided by the National Science Foundation (NSF) and the Office for International Science and Engineering (OISE) to A.W.S. (IOS-1353713) and V.O.E. (IOS-1353857). Additional funding was provided to A.W.S. by the University of Kentucky.
Financiación
We thank Matt Snider, Zara Ashraf, Malik Guidry, John Ewoi and Stanley Marete for help with live-trapping, animal care and data collection. We thank Tiberius for reliable transport and Edward Scott for the gift of MRL/MpJ mice. We also thank Peter Jessel for kindly allowing us access to his property and for fruitful discussions. Funding for this work was provided by the National Science Foundation (NSF) and the Office for International Science and Engineering (OISE) to A.W.S. (IOS-1353713) and V.O.E. (IOS-1353857). Additional funding was provided to A.W.S. by the University of Kentucky.
| Financiadores | Número del financiador |
|---|---|
| University of Kentucky | |
| National Science Foundation Arctic Social Science Program | 1353713, IOS-1353857 |
| Office of International Science and Engineering | IOS-1353713, IOS-1353857 |
ASJC Scopus subject areas
- General Chemistry
- General Biochemistry, Genetics and Molecular Biology
- General
- General Physics and Astronomy
Huella
Profundice en los temas de investigación de 'Comparative analysis of ear-hole closure identifies epimorphic regeneration as a discrete trait in mammals'. En conjunto forman una huella única.Citar esto
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