Gene expression profiles in normal and Otx2-/- early gastrulating mouse embryos.

Zakin, L; Reversade, B; Virlon, B; Rusniok, C; Glaser, P; Elalouf, J M; Brulet, P · Proc Natl Acad Sci U S A · 2000

basic_science · Level V

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Abstract

The mouse Otx2 gene is a homeobox transcription factor required as early as gastrulation for the proper development of the head. We compared gene expression profiles in wild-type and Otx2(-/-) 6.5 days postcoitum embryos by using a serial analysis of gene expression assay adapted to microdissected structures. Among a broader list, the study of six genes found to be differentially expressed allows defining a role for Otx2 in the orchestration of cell movements leading to the adequate organization of the embryo before gastrulation.

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