Live Imaging of Axolotl Digit Regeneration Reveals Spatiotemporal Choreography of Diverse Connective Tissue Progenitor Pools

Connective tissues—skeleton, dermis, pericytes, fascia—are a key cell source for regenerating the patterned skeleton during axolotl appendage regeneration. This complexity has made it difficult to identify the cells that regenerate skeletal tissue. Inability to identify these cells has impeded a mec...

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Detalles Bibliográficos
Autores principales: Currie, J. D., Kawaguchi, A., Traspas, R. M., Schuez, M., Chara, Osvaldo, Tanaka, E. M.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/86921
Aporte de:
id I19-R120-10915-86921
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
axolotl
blastema formation
brainbow
cell migration
connective tissue
limb regeneration
live imaging
PDGF signaling
skeletal regeneration
spellingShingle Ciencias Exactas
axolotl
blastema formation
brainbow
cell migration
connective tissue
limb regeneration
live imaging
PDGF signaling
skeletal regeneration
Currie, J. D.
Kawaguchi, A.
Traspas, R. M.
Schuez, M.
Chara, Osvaldo
Tanaka, E. M.
Live Imaging of Axolotl Digit Regeneration Reveals Spatiotemporal Choreography of Diverse Connective Tissue Progenitor Pools
topic_facet Ciencias Exactas
axolotl
blastema formation
brainbow
cell migration
connective tissue
limb regeneration
live imaging
PDGF signaling
skeletal regeneration
description Connective tissues—skeleton, dermis, pericytes, fascia—are a key cell source for regenerating the patterned skeleton during axolotl appendage regeneration. This complexity has made it difficult to identify the cells that regenerate skeletal tissue. Inability to identify these cells has impeded a mechanistic understanding of blastema formation. By tracing cells during digit tip regeneration using brainbow transgenic axolotls, we show that cells from each connective tissue compartment have distinct spatial and temporal profiles of proliferation, migration, and differentiation. Chondrocytes proliferate but do not migrate into the regenerate. In contrast, pericytes proliferate, then migrate into the blastema and give rise solely to pericytes. Periskeletal cells and fibroblasts contribute the bulk of digit blastema cells and acquire diverse fates according to successive waves of migration that choreograph their proximal-distal and tissue contributions. We further show that platelet-derived growth factor signaling is a potent inducer of fibroblast migration, which is required to form the blastema.
format Articulo
Articulo
author Currie, J. D.
Kawaguchi, A.
Traspas, R. M.
Schuez, M.
Chara, Osvaldo
Tanaka, E. M.
author_facet Currie, J. D.
Kawaguchi, A.
Traspas, R. M.
Schuez, M.
Chara, Osvaldo
Tanaka, E. M.
author_sort Currie, J. D.
title Live Imaging of Axolotl Digit Regeneration Reveals Spatiotemporal Choreography of Diverse Connective Tissue Progenitor Pools
title_short Live Imaging of Axolotl Digit Regeneration Reveals Spatiotemporal Choreography of Diverse Connective Tissue Progenitor Pools
title_full Live Imaging of Axolotl Digit Regeneration Reveals Spatiotemporal Choreography of Diverse Connective Tissue Progenitor Pools
title_fullStr Live Imaging of Axolotl Digit Regeneration Reveals Spatiotemporal Choreography of Diverse Connective Tissue Progenitor Pools
title_full_unstemmed Live Imaging of Axolotl Digit Regeneration Reveals Spatiotemporal Choreography of Diverse Connective Tissue Progenitor Pools
title_sort live imaging of axolotl digit regeneration reveals spatiotemporal choreography of diverse connective tissue progenitor pools
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/86921
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