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Lookup NU author(s): Dr Birthe HilgenORCiD, Majed Felemban, Alex Sharpe, Dr Roman BauerORCiD, Dr Dean Hallam, David Steel, Emerita Professor Susan Lindsay, Dr Carla Mellough, Professor Majlinda LakoORCiD
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
Laminins are heterotrimeric glycoproteins of the extracellular matrix. 11 different laminin chains have been identified in vertebrates. They are ubiquitously expressed in the human body, with a distinct tissue distribution. Laminin expression in neural retina and their functional role during human retinogenesis is still unknown. This study investigated the laminin expression in human developing and adult retina, showing laminin α1, α5, β1, β2 and γ1 to be predominantly expressed in Bruch’s membrane and inner limiting membrane. Laminin-332 and laminin γ3 expression were predominant in the neural retina during retinal histogenesis. These expression patterns were largely conserved in pluripotent stem cell-derived retinal organoids. Blocking of laminin γ3 function in retinal organoids resulted in the disruption of laminar organisation and synapse formation, the loss of photoreceptor organization and retinal ganglion cells. Our data demonstrate a unique temporal and spatial expression for laminins and reveal a novel role for laminin γ3 during human retinogenesis.
Author(s): Dorgau B, Felemban N, Sharpe A, Bauer R, Hallam D, Steel DH, Lindsay S, Mellough C, Lako M
Publication type: Article
Publication status: Published
Journal: Cell Death and Disease
Year: 2018
Volume: 9
Issue: 6
Print publication date: 01/06/2018
Online publication date: 23/05/2018
Acceptance date: 26/04/2018
Date deposited: 26/04/2018
ISSN (electronic): 2041-4889
Publisher: Nature Publishing Group
URL: https://doi.org/10.1038/s41419-018-0648-0
DOI: 10.1038/s41419-018-0648-0
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