TY  - JOUR
TI  - Ets-1 and Ets-2 proto-oncogenes exhibit differential and restricted expression patterns during Xenopus laevis oogenesis and embryogenesis.
AU  - Meyer, D
AU  - Durliat, M
AU  - Senan, F
AU  - Wolff, M
AU  - Andre, M
AU  - Hourdry, J
AU  - Remy, P
T2  - The International Journal of Developmental Biology
AB  - Xenopus XI-ets-1 and XI-ets-2 are maternally expressed. From late oogenesis to early embryogenesis their transcripts are localized to the animal pole and the intermediate zone, suggesting a function in the differentiation of animal blastomeres and future mesoderm. Their presence at the level of germ plasm suggests also a role in the differentiation of the germinal lineage. Both zygotic genes are expressed ubiquitously beginning at MBT, and then restricted to a circumblastoporal collar. In neurula and tailbud stages, ets-1 and ets-2 transcripts are detected in neural crest cells and their derivatives. Specific transcription can also be observed for ets-1 in the hemangioblastic precursors, in endothelial cells of the forming heart and blood vessels. Ets-2 is itself specifically expressed in the putative pronephros and in the forming pronephric tubules and extending pronephric duct. Like another member of the ets-gene family (XI-fli), both genes are transcribed in regions of the embryo undergoing important morphogenetic modifications, especially in migrating cells and/or along their migration pathways. We postulate that these genes orchestrate modifications of cellular adhesion. Changes in the expression of cadherins and integrins repertories would be consistent with such a role and could account for the phenotypes we reported earlier for XI-fli overexpression. Such a role would be critical for tumor cell dissemination, in addition to the one already ascribed to ets-1 in the expression of proteases specific for the extracellular matrix.
PY  - 1997
VL  - 41
IS  - 4
SP  - 607
EP  - 620
J2  - Int. J. Dev. Biol.
LA  - en
SN  - 0214-6282
SN  - 1696-3547
UR  - https://ijdb.ehu.eus/article/9303349
Y2  - 2024/11/05/15:22:18
ER  -