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Updated: May 12, 2026
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In vivo Electroporation of Morpholinos into the Regenerating Adult Zebrafish Tail Fin
Published on: March 29, 2012
Bigh3 is upregulated in regenerating zebrafish fin
Lionel Page1, Bozena Polok, Mauro Bustamante
1Institut de Recherche en Ophtalmologie, 64 Av. du Grand-Champsec, Sion, Switzerland.
Zebrafish
|March 30, 2013
Summary
Zebrafish fin regeneration involves transforming growth factor-beta (TGF-β) signaling. This study reveals that bigh3 and bambia gene expression correlates with fin repair, suggesting their crucial role in this complex process.
Area of Science:
- Regenerative Biology
- Developmental Biology
- Molecular Biology
Background:
- Zebrafish are a key model organism for studying rapid regeneration.
- Understanding regeneration mechanisms may enhance human healing capacity.
- Signaling pathways, including TGF-β, are critical regulators of regeneration.
Purpose of the Study:
- To investigate the role of TGF-β-induced genes, specifically bigh3 and bambia, during zebrafish fin regeneration.
- To analyze the temporal expression patterns of TGF-β signaling components and their downstream targets.
Main Methods:
- Quantitative analysis of mRNA expression levels for tgf-b1, tgf-b2, tgf-b3, tgf-brII, bigh3, and bambia at various time points post-amputation (dpa).
- Correlation of gene expression changes with the stages of zebrafish fin regeneration.
Main Results:
- TGF-β1 and TGF-β3 mRNA showed delayed upregulation starting at 4-5 dpa, returning to normal levels by 10 dpa, except for TGF-β3.
- Bigh3 mRNA expression paralleled TGF-β1 upregulation.
- Bambia mRNA expression mirrored the pattern of TGF-β2 mRNA expression.
Conclusions:
- Upregulation of bigh3 and bambia during zebrafish fin regeneration is linked to TGF-β signaling.
- These findings suggest a novel role for Bigh3 and Bambia proteins in the complex process of fin regeneration.
