Related Experiment Video
Updated: Apr 30, 2026
07:22
In vivo Electroporation of Morpholinos into the Regenerating Adult Zebrafish Tail Fin
Published on: March 29, 2012
18.3K
Specific NuRD components are required for fin regeneration in zebrafish
Catherine Pfefferli, Fritz Müller, Anna Jaźwińska1
1Department of Biology, University of Fribourg, Ch, du Musée 10, CH-1700 Fribourg, Switzerland. anna.jazwinska@unifr.ch.
BMC Biology
|May 1, 2014
Summary
Epigenetic factors, specifically the Nucleosome Remodeling and Deacetylase (NuRD) complex, are crucial for zebrafish fin regeneration. These factors regulate blastema cell proliferation and differentiation, enabling the regrowth of the missing fin.
Area of Science:
- Developmental Biology
- Regenerative Medicine
- Epigenetics
Background:
- Epimorphic regeneration in fish and amphibians involves blastema formation from dedifferentiated cells.
- Silenced developmental programs are reactivated during regeneration.
- The role of chromatin regulation in epimorphic regeneration is not well understood.
Purpose of the Study:
- To investigate the role of chromatin regulation, specifically the Nucleosome Remodeling and Deacetylase (NuRD) complex, in zebrafish fin regeneration.
Main Methods:
- Analysis of gene expression for NuRD components (chd4a, hdac1, rbb4, mta2) during fin regeneration.
- Inhibition of Hdac1 and knockdown of chd4a, mta2, and rbb4 using morpholinos.
- Assessment of blastema cell proliferation and differentiation defects.
Main Results:
- Specific NuRD components (chd4a, hdac1, rbb4, mta2) were co-induced in the blastema during zebrafish fin regeneration.
- Inhibition of Hdac1 and knockdown of chd4a, mta2, and rbb4 impaired fin regenerative outgrowth.
- These manipulations led to reduced blastema cell proliferation and differentiation defects.
Conclusions:
- Specialized NuRD components are induced in the blastema and are essential for fin regeneration.
- NuRD complex involvement in blastema cell proliferation and osteoblast precursor redifferentiation.
- Provides in vivo evidence for epigenetic factors in cellular reprogramming during zebrafish epimorphic regeneration.
