Journal
GERONTOLOGY
Volume 56, Issue 2, Pages 231-240Publisher
KARGER
DOI: 10.1159/000259327
Keywords
Regeneration; Zebrafish; Wnt; Fibroblast growth factor; Activin-beta A; Retinoic acid; Sonic hedgehog; MicroRNA
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Funding
- Environmental and Molecular Toxicology Training [T32 ES07060]
- NIEHS Environmental Health Sciences Center [ES00210]
- NSF [0641409]
- NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES [P30ES000210, T32ES007060] Funding Source: NIH RePORTER
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This short review provides a current synopsis of caudal fin regeneration in zebrafish with an emphasis on the molecular signaling networks that dictate epimorphic regeneration. At the outset, the fundamentals of caudal fin architecture and the stages of epimorphic regeneration are described. This is followed by a detailed look at the main networks implicated in fin regeneration, namely the Wnt, fibroblast growth factor, activin-beta A, retinoic acid and hedgehog signaling pathways. Throughout this mini-review, these molecular networks are examined through the lens of wound healing, blastema formation or regenerative outgrowth, three of the main stages of epimorphic regeneration. Next, the emerging role of noncoding RNAs as regulators of regeneration and mechanisms of regenerative termination are discussed. Finally, the implications for future research and the broader field of regenerative medicine are examined. Copyright (C) 2009 S. Karger AG, Basel
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