Transcriptomics

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Expression data from regenerating axolotl forelimbs


ABSTRACT: Salamanders are capable of regenerating amputated limbs by generating a mass of lineage-restricted cells called a blastema. Blastemas only generate structures distal to their origin unless treated with retinoic acid (RA), which results in proximodistal (PD) limb duplications. Little is known about the transcriptional network that regulates PD duplication. In this study, we identified expression patterns that explain PD duplication including upregulation of proximal homeobox gene expression and silencing of distal-associated genes whereas limb truncation was associated with disrupted skeletal differentiation. Overall, mechanisms were identified that regulate RAR’s multifaceted roles in the salamander limb including regulation of skeletal patterning during epimorphic regeneration, skeletal tissue differentiation during regeneration, and homeostatic regeneration of intact limbs.

ORGANISM(S): Ambystoma mexicanum

PROVIDER: GSE93303 | GEO | 2017/01/10

SECONDARY ACCESSION(S): PRJNA360578

REPOSITORIES: GEO

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