Multi-species atlas resolves an axolotl limb development and regeneration paradox

© 2023. Springer Nature Limited..

Humans and other tetrapods are considered to require apical-ectodermal-ridge (AER) cells for limb development, and AER-like cells are suggested to be re-formed to initiate limb regeneration. Paradoxically, the presence of AER in the axolotl, a primary model organism for regeneration, remains controversial. Here, by leveraging a single-cell transcriptomics-based multi-species atlas, composed of axolotl, human, mouse, chicken, and frog cells, we first establish that axolotls contain cells with AER characteristics. Further analyses and spatial transcriptomics reveal that axolotl limbs do not fully re-form AER cells during regeneration. Moreover, the axolotl mesoderm displays part of the AER machinery, revealing a program for limb (re)growth. These results clarify the debate about the axolotl AER and the extent to which the limb developmental program is recapitulated during regeneration.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:14

Enthalten in:

Nature communications - 14(2023), 1 vom: 10. Okt., Seite 6346

Sprache:

Englisch

Beteiligte Personen:

Zhong, Jixing [VerfasserIn]
Aires, Rita [VerfasserIn]
Tsissios, Georgios [VerfasserIn]
Skoufa, Evangelia [VerfasserIn]
Brandt, Kerstin [VerfasserIn]
Sandoval-Guzmán, Tatiana [VerfasserIn]
Aztekin, Can [VerfasserIn]

Links:

Volltext

Themen:

Journal Article
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 12.10.2023

Date Revised 19.11.2023

published: Electronic

Citation Status MEDLINE

doi:

10.1038/s41467-023-41944-w

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM363098402