Lopez-Escobar, B;
De Felipe, B;
Antonio Sanchez-Alcazar, J;
Sasaki, T;
Copp, AJ;
Ybot-Gonzalez, P;
(2012)
Laminin and integrin expression in the ventral ectodermal ridge of the mouse embryo: Implications for regulation of BMP signalling.
Developmental Dynamics
, 241
(11)
pp. 1808-1815.
10.1002/dvdy.23846.
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Abstract
BACKGROUND: The ventral ectodermal ridge (VER) is an important signalling centre in the mouse tail-bud following completion of gastrulation. BMP regulation is essential for VER function, but how these signals are transmitted between adjacent tissues is unclear. RESULTS: We investigated the idea that extracellular matrix components might be involved, using immunohistochemistry and in situ hybridisation to detect all known α, β, and γ laminin chains and their mRNAs in the early tail bud. We identified an apparently novel laminin variant, comprising α5, β3 and γ2 chains, as a major component of the VER basement membrane at E9.5. Strikingly, only the mRNAs for these chains were co-expressed in VER cells, suggesting that lamin532 may be the sole basement membrane laminin at this stage. Since α6 integrin was also expressed in VER cells, this raises the possibility of cell-matrix interactions regulating BMP signalling at this site of caudal morphogenesis. CONCLUSIONS: Laminin532 could interact with α6-containing integrin to direct differentiation of the specialised VER cells from surface ectoderm.
| Type: | Article |
|---|---|
| Title: | Laminin and integrin expression in the ventral ectodermal ridge of the mouse embryo: Implications for regulation of BMP signalling |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/dvdy.23846 |
| Publisher version: | http://dx.doi.org/10.1002/dvdy.23846 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Developmental Biology, ANATOMY & MORPHOLOGY, DEVELOPMENTAL BIOLOGY, mouse, embryo, tail bud, ventral ectodermal ridge, laminin, extracellular matrix, basement membrane, integrin, bone morphogenetic protein, HEPARAN-SULFATE PROTEOGLYCANS, LEUKOCYTE EXTRAVASATION, BASEMENT-MEMBRANE, ALPHA-6 SUBUNIT, NEURAL CREST, CHAIN, MORPHOGENESIS, DIFFERENTIATION, TAIL, PROTEINS |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health > Developmental Biology and Cancer Dept |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1368779 |
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