2013
DOI: 10.1242/dev.096024
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Knockdown of col22a1 gene in zebrafish induces a muscular dystrophy by disruption of the myotendinous junction

Abstract: The myotendinous junction (MTJ) is the major site of force transfer in skeletal muscle, and defects in its structure correlate with a subset of muscular dystrophies. Col22a1 encodes the MTJ component collagen XXII, the function of which remains unknown. Here, we have cloned and characterized the zebrafish col22a1 gene and conducted morpholino-based loss-of-function studies in developing embryos. We showed that col22a1 transcripts localize at muscle ends when the MTJ forms and that COLXXII protein integrates th… Show more

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Cited by 103 publications
(104 citation statements)
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“…Pictures were acquired between two polarizing filters on an Olympus SZX16 with a DP72 camera and the Olympus Stream software (Olympus, Hamburg, Germany). ISO was fixed to 400 and exposure time to 296 ms. Data analysis was carried out as described previously (Charvet et al, 2013). Electron micrographs were obtained essentially as described previously (Just et al, 2011b).…”
Section: Zebrafish Methodsmentioning
confidence: 99%
“…Pictures were acquired between two polarizing filters on an Olympus SZX16 with a DP72 camera and the Olympus Stream software (Olympus, Hamburg, Germany). ISO was fixed to 400 and exposure time to 296 ms. Data analysis was carried out as described previously (Charvet et al, 2013). Electron micrographs were obtained essentially as described previously (Just et al, 2011b).…”
Section: Zebrafish Methodsmentioning
confidence: 99%
“…Il peut, en outre, contribuer au développement de stratégies thérapeutiques [27]. La modélisation future de nouvelles pathologies musculaires, conduisant à l'identification de nouveaux gènes potentiellement impliqués dans ces maladies [32], ou confirmant l'implication de gènes dont l'altération a été caractérisée chez l'homme [43,44], sera certainement source de progrès pour l'étude de ces pathologies graves. ‡…”
Section: Resultsunclassified
“…L'utilisation de morpholinos antisens pour invalider transitoirement le gène codant le dystroglycane engendre des mutants présentant une altération des fibres musculaires avec des signes d'apoptose et de nécrose [8]. dag1 hu3072 et patchytail sont deux mutants de poisson zèbre caracté-risés par une absence de sous-unités  et  du dystroglycane [32]. Ces mutants ont des phénotypes différents, illustrant la diversité des signes cliniques que l'on peut observer chez des patients atteints de dystrophies musculaires.…”
Section: Discussionunclassified
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