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Autotaxin is required for the cranial neural tube closure and establishment of the midbrain–hindbrain boundary during mouse development
Author(s) -
Koike Seiichi,
Yutoh Yoshifumi,
KeinoMasu Kazuko,
Noji Sumihare,
Masu Masayuki,
Ohuchi Hideyo
Publication year - 2011
Publication title -
developmental dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.634
H-Index - 141
eISSN - 1097-0177
pISSN - 1058-8388
DOI - 10.1002/dvdy.22543
Subject(s) - neural tube , biology , hindbrain , neural plate , neurulation , forebrain , neural fold , autotaxin , fgf8 , neural development , midbrain , microbiology and biotechnology , mutant , anatomy , embryogenesis , embryo , neuroscience , gastrulation , genetics , central nervous system , fibroblast growth factor , gene , lysophosphatidic acid , receptor
Autotaxin (ATX) is a lysophospholipid‐generating exoenzyme expressed in embryonic and adult neural tissues. We previously showed that ATX is expressed in the neural organizing centers, anterior head process, and midbrain‐hindbrain boundary (MHB). To elucidate the role of ATX during neural development, here we examined the neural phenotypes of ATX ‐deficient mice. Expression analysis of neural marker genes revealed that lateral expansion of the rostral forebrain is reduced and establishment of the MHB is compromised as early as the late headfold stage in ATX mutant embryos. Moreover, ATX mutant embryos fail to complete cranial neural tube closure. These results indicate that ATX is essential for cranial neurulation and MHB establishment. Developmental Dynamics 240:413–421, 2011. © 2011 Wiley‐Liss, Inc.