PUBLICATION

A Zebrafish Model of Human Fibrodysplasia Ossificans Progressiva

Authors
LaBonty, M., Pray, N., Yelick, P.C.
ID
ZDB-PUB-170411-4
Date
2017
Source
Zebrafish   14(4): 293-304 (Journal)
Registered Authors
Yelick, Pamela C.
Keywords
FOP, adult zebrafish disease model, heterotopic ossification
MeSH Terms
  • Activin Receptors, Type I/genetics
  • Animals
  • Animals, Genetically Modified
  • Body Patterning*
  • Disease Models, Animal
  • Gene Expression Regulation, Developmental
  • Heat-Shock Response
  • Humans
  • Myositis Ossificans/genetics*
  • Zebrafish/embryology
  • Zebrafish/genetics*
  • Zebrafish Proteins/genetics
PubMed
28394244 Full text @ Zebrafish
Abstract
Fibrodysplasia ossificans progressiva (FOP) is a rare, autosomal dominant genetic disorder in humans characterized by explosive inflammatory response to injury leading to gradual ossification within fibrous tissues, including skeletal muscle, tendons, and ligaments. A variety of animal models are needed to study and understand the etiology of human FOP. To address this need, here we present characterizations of the first adult zebrafish model for FOP. In humans, activating mutations in the Type I BMP/TGFβ family member receptor, ACVR1, are associated with FOP. Zebrafish acvr1l, previously known as alk8, is the functional ortholog of human ACVR1, and has been studied extensively in the developing zebrafish embryo, where it plays a role in early dorsoventral patterning. Constitutively active and dominant negative mutations in zebrafish acvr1l cause early lethal defects. Therefore, to study roles for activating acvr1l mutations in adult zebrafish, we created transgenic animals expressing mCherry-tagged, heat-shock-inducible constitutively active Acvr1l, Acvr1lQ204D, to investigate phenotypes in juvenile and adult zebrafish. Our studies showed that adult zebrafish expressing heat-shock-induced Acvr1lQ204D develop a number of human FOP-like phenotypes, including heterotopic ossification lesions, spinal lordosis, vertebral fusions, and malformed pelvic fins. Together, these results suggest that transgenic zebrafish expressing heat-shock-inducible Acvr1lQ204D can serve as a model for human FOP.
Genes / Markers
Figures
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Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping