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Böhm, J.* ; Buck, A.* ; Borozdin, W.* ; Mannan, A.U.* ; Matysiak-Scholze, U.* ; Adham, I.* ; Schulz-Schaeffer, W.* ; Floß, T. ; Wurst, W. ; Kohlhase, J.* ; Barrionuevo, F.*

Sall1, Sall2, and Sall4 Are Required for Neural Tube Closure in Mice.

Am. J. Pathol. 173, 1455-1463 (2008)
DOI
Open Access Green as soon as Postprint is submitted to ZB.
Four homologs to the Drosophila homeotic gene spalt (sat) exist in both humans and mice (SALL1 to SALL4/Sall1 to Sall4, respectively). Mutations in both SALL1 and SALL4 result in the autosomal-dominant developmental disorders Townes-Brocks and Okihiro, syndrome, respectively. in contrast, no human diseases have been associated with SALL2 to date, and Sall2-deficient mice have shown no apparent abnormal phenotype. We generated mice deficient in Sall2 and, contrary to previous reports, 11% of our Sall2-deficient mice showed background-specific neural tube defects, suggesting that Sall2 has a role in neurogenesis. To investigate whether Sall4 may compensate for the absence of Sall2, we generated compound Sall2 knockout/Sall4 genetrap mutant mice. In these mutants, the incidence of neural tube defects was significantly increased. Furthermore, we found a similar phenotype in compound Sall1/4 mutant mice, and in vitro studies showed that SALL1, SALL2, and SALL4 all co-localized in the nucleus. We therefore suggest a fundamental and redundant function of the Sall proteins in murine neurulation, with the heterozygous loss of a particular SALL protein also possibly compensated in humans during development.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords Townes-Brocks-syndrome; zinc-finger protein; kidney development; Okihiro-syndrome; murine homolog; homeotic gene; expression analysis; molecular-cloning; drosophila embryo; spalt
ISSN (print) / ISBN 0002-9440
e-ISSN 1525-2191
Quellenangaben Volume: 173, Issue: 5, Pages: 1455-1463 Article Number: , Supplement: ,
Publisher Elsevier
Non-patent literature Publications
Reviewing status Peer reviewed