Lens Extrusion from Laminin Alpha 1 Mutant Zebrafish

We report analysis of the ocular lens phenotype of the recessive, larval lethal zebrafish mutant, lama1a69/a69. Previous work revealed that this mutant has a shortened body axis and eye defects including a defective hyaloid vasculature, focal corneal dysplasia, and loss of the crystalline lens. Whil...

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Main Authors: Mallika Pathania, Elena V. Semina, Melinda K. Duncan
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1155/2014/524929
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author Mallika Pathania
Elena V. Semina
Melinda K. Duncan
author_facet Mallika Pathania
Elena V. Semina
Melinda K. Duncan
author_sort Mallika Pathania
collection DOAJ
description We report analysis of the ocular lens phenotype of the recessive, larval lethal zebrafish mutant, lama1a69/a69. Previous work revealed that this mutant has a shortened body axis and eye defects including a defective hyaloid vasculature, focal corneal dysplasia, and loss of the crystalline lens. While these studies highlight the importance of laminin α1 in lens development, a detailed analysis of the lens defects seen in these mutants was not reported. In the present study, we analyze the lenticular anomalies seen in the lama1a69/a69 mutants and show that the lens defects result from the anterior extrusion of lens material from the eye secondary to structural defects in the lens capsule and developing corneal epithelium associated with basement membrane loss. Our analysis provides further insights into the role of the lens capsule and corneal basement membrane in the structural integrity of the developing eye.
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publishDate 2014-01-01
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series The Scientific World Journal
spelling doaj-art-82816399e4d04bdfa37027a2106d93fa2025-02-03T01:02:25ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/524929524929Lens Extrusion from Laminin Alpha 1 Mutant ZebrafishMallika Pathania0Elena V. Semina1Melinda K. Duncan2Department of Biological Sciences, University of Delaware, 327 Wolf Hall Newark, DE 19716, USADepartment of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, WI 53226, USADepartment of Biological Sciences, University of Delaware, 327 Wolf Hall Newark, DE 19716, USAWe report analysis of the ocular lens phenotype of the recessive, larval lethal zebrafish mutant, lama1a69/a69. Previous work revealed that this mutant has a shortened body axis and eye defects including a defective hyaloid vasculature, focal corneal dysplasia, and loss of the crystalline lens. While these studies highlight the importance of laminin α1 in lens development, a detailed analysis of the lens defects seen in these mutants was not reported. In the present study, we analyze the lenticular anomalies seen in the lama1a69/a69 mutants and show that the lens defects result from the anterior extrusion of lens material from the eye secondary to structural defects in the lens capsule and developing corneal epithelium associated with basement membrane loss. Our analysis provides further insights into the role of the lens capsule and corneal basement membrane in the structural integrity of the developing eye.http://dx.doi.org/10.1155/2014/524929
spellingShingle Mallika Pathania
Elena V. Semina
Melinda K. Duncan
Lens Extrusion from Laminin Alpha 1 Mutant Zebrafish
The Scientific World Journal
title Lens Extrusion from Laminin Alpha 1 Mutant Zebrafish
title_full Lens Extrusion from Laminin Alpha 1 Mutant Zebrafish
title_fullStr Lens Extrusion from Laminin Alpha 1 Mutant Zebrafish
title_full_unstemmed Lens Extrusion from Laminin Alpha 1 Mutant Zebrafish
title_short Lens Extrusion from Laminin Alpha 1 Mutant Zebrafish
title_sort lens extrusion from laminin alpha 1 mutant zebrafish
url http://dx.doi.org/10.1155/2014/524929
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AT elenavsemina lensextrusionfromlamininalpha1mutantzebrafish
AT melindakduncan lensextrusionfromlamininalpha1mutantzebrafish