PUBLICATION
Regeneration of skeletal muscle in two teleost fish: Sparus aurata and Brachydanio rerio
- Authors
- Rowlerson, A., Radaelli, G., Mascarello, F., and Veggetti, A.
- ID
- ZDB-PUB-970812-1
- Date
- 1997
- Source
- Cell and tissue research 289(2): 311-322 (Journal)
- Registered Authors
- Keywords
- muscle; regeneration; myosin; desmin; fibre; myoblast; Sparus aurata; Brachydanio rerio (Teleostei)
- MeSH Terms
-
- Animals
- Bromodeoxyuridine/pharmacokinetics
- Desmin/biosynthesis
- Muscle, Skeletal/physiology*
- Muscle, Skeletal/ultrastructure
- Myosins/biosynthesis
- Perciformes/physiology*
- Regeneration*
- Zebrafish/physiology*
- PubMed
- 9211834 Full text @ Cell Tissue Res.
Citation
Rowlerson, A., Radaelli, G., Mascarello, F., and Veggetti, A. (1997) Regeneration of skeletal muscle in two teleost fish: Sparus aurata and Brachydanio rerio. Cell and tissue research. 289(2):311-322.
Abstract
Regeneration of skeletal muscle was studied in the sea bream Sparus aurata, in which extensive post-larval muscle hyperplasia contributes to its large adult size, and in the zebrafish Brachydanio rerio, which shows little post-larval hyperplasia and reaches only a small adult size. Small mechanical lesions of body wall muscle were made under general anaesthesia, and the progress of subsequent regeneration was assessed at various intervals by histology and electron microscopy (for general morphology), by immunostaining for desmin and myosin isoforms (to identify the phenotype of new fibres), and by 5'-bromo-2'-deoxyuridine (BrdU) incorporation (to identify proliferating cells). Despite the difference in normal growth-related hyperplasia in these fish, a vigorous regeneration occurred in both species, giving rise to new fibres with an initial myosin composition that differed from that in mature fast-white fibres. However, species differences in myosin expression in these fibres suggest that they may have derived from different myoblast populations. In sea bream, myosin expression in regenerating fibres resembled that seen in new fibres produced in post-larval white muscle, whereas in the zebrafish it resembled that of the primitive monolayer fibres formed during embryonic development. Subsequently, most regenerating fibres gradually transformed into the mature fast-white phenotype in both species.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping