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Heart Regeneration in the Mexican Cavefish.

Cell reports | 2018

Although Astyanax mexicanus surface fish regenerate their hearts after injury, their Pachón cave-dwelling counterparts cannot and, instead, form a permanent fibrotic scar, similar to the human heart. Myocardial proliferation peaks at similar levels in both surface fish and Pachón 1 week after injury. However, in Pachón, this peak coincides with a strong scarring and immune response, and ultimately, cavefish cardiomyocytes fail to replace the scar. We identified lrrc10 to be upregulated in surface fish compared with Pachón after injury. Similar to cavefish, knockout of lrrc10 in zebrafish impairs heart regeneration without affecting wound cardiomyocyte proliferation. Furthermore, using quantitative trait locus (QTL) analysis, we have linked the degree of heart regeneration to three loci in the genome, identifying candidate genes fundamental to the difference between scarring and regeneration. Our study provides evidence that successful heart regeneration entails a delicate interplay between cardiomyocyte proliferation and scarring.

Pubmed ID: 30462998 RIS Download

Research resources used in this publication

Associated grants

  • Agency: British Heart Foundation, United Kingdom
    Id: FS/14/73/31107
  • Agency: British Heart Foundation, United Kingdom
    Id: RG/18/5/33532
  • Agency: British Heart Foundation, United Kingdom
    Id: PG/15/111/31939
  • Agency: British Heart Foundation, United Kingdom
    Id: RG/13/9/30269
  • Agency: Biotechnology and Biological Sciences Research Council, United Kingdom
    Id: BB/C517041/1
  • Agency: British Heart Foundation, United Kingdom
    Id: PG/12/39/29626

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This is a list of tools and resources that we have found mentioned in this publication.


Ensembl (tool)

RRID:SCR_002344

Collection of genome databases for vertebrates and other eukaryotic species with DNA and protein sequence search capabilities. Used to automatically annotate genome, integrate this annotation with other available biological data and make data publicly available via web. Ensembl tools include BLAST, BLAT, BioMart and the Variant Effect Predictor (VEP) for all supported species.

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GraphPad Prism (tool)

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New England Biolabs (tool)

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Antibody and density gradient media supplier.

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QIAGEN (tool)

RRID:SCR_008539

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CCTop (software resource)

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edgeR (software resource)

RRID:SCR_012802

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Software environment and programming language for statistical computing and graphics. R is integrated suite of software facilities for data manipulation, calculation and graphical display. Can be extended via packages. Some packages are supplied with the R distribution and more are available through CRAN family.It compiles and runs on wide variety of UNIX platforms, Windows and MacOS.

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CCTop (software resource)

RRID:SCR_016890

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View all literature mentions

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RRID:AB_2341188

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View all literature mentions

BLASTN (data analysis service)

RRID:SCR_001598

Web application to search nucleotide databases using a nucleotide query. Algorithms: blastn, megablast, discontiguous megablast.

View all literature mentions

R Project for Statistical Computing (software resource)

RRID:SCR_001905

Software environment and programming language for statistical computing and graphics. R is integrated suite of software facilities for data manipulation, calculation and graphical display. Can be extended via packages. Some packages are supplied with the R distribution and more are available through CRAN family.It compiles and runs on wide variety of UNIX platforms, Windows and MacOS.

View all literature mentions

BWA (software resource)

RRID:SCR_010910

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View all literature mentions

edgeR (software resource)

RRID:SCR_012802

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View all literature mentions

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RRID:SCR_011848

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View all literature mentions

ImageJ (software resource)

RRID:SCR_003070

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View all literature mentions

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RRID:SCR_014583

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RRID:AB_1540350

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RRID:SCR_015687

Software package for differential gene expression analysis based on the negative binomial distribution. Used for analyzing RNA-seq data for differential analysis of count data, using shrinkage estimation for dispersions and fold changes to improve stability and interpretability of estimates.

View all literature mentions

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RRID:SCR_015935

Web application that helps design, evaluate and clone guide sequences for the CRISPR/Cas9 system. This sgRNA design tool assists with guide selection in a variety of genomes and pre-calculated results for all human coding exons as a UCSC Genome Browser track.

View all literature mentions

R/QTL (software resource)

RRID:SCR_009085

Software program for mapping quantitative trait loci in experimental crosses. (entry from Genetic Analysis Software)

View all literature mentions

Short Time-series Expression Miner (STEM) (data processing software)

RRID:SCR_005016

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