Caveolin-1 is required for lateral line neuromast and notochord development

Nixon, Susan J., Carter, Adrian, Wegner, Jeremy, Ferguson, Charles, Floetenmeyer, Matthias, Riches, Jamie, Key, Brian, Westerfield, Monte, & Parton, Robert G. (2007) Caveolin-1 is required for lateral line neuromast and notochord development. Journal of Cell Science, 120, pp. 2151-2161.

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Caveolae have been linked to diverse cellular functions and to many disease states. In this study we have used zebrafish to examine the role of caveolin-1 and caveolae during early embryonic development. During development, expression is apparent in a number of tissues including Kupffer's vesicle, tailbud, intersomite boundaries, heart, branchial arches, pronephric ducts and periderm. Particularly strong expression is observed in the sensory organs of the lateral line, the neuromasts and in the notochord where it overlaps with expression of caveolin-3. Morpholino-mediated downregulation of Cav1α caused a dramatic inhibition of neuromast formation. Detailed ultrastructural analysis, including electron tomography of the notochord, revealed that the central regions of the notochord has the highest density of caveolae of any embryonic tissue comparable to the highest density observed in any vertebrate tissue. In addition, Cav1α downregulation caused disruption of the notochord, an effect that was enhanced further by Cav3 knockdown. These results indicate an essential role for caveolin and caveolae in this vital structural and signalling component of the embryo.

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18 citations in Web of Science®

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ID Code: 94944
Item Type: Journal Article
Refereed: Yes
Keywords: Caveolae, Caveolin-1, Neuromast, Notochord, Zebrafish
DOI: 10.1242/jcs.003830
ISSN: 1477-9137
Divisions: Current > Schools > School of Earth, Environmental & Biological Sciences
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2007 The Company of Biologists Ltd
Deposited On: 18 Apr 2016 23:00
Last Modified: 20 Apr 2016 05:35

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