Molecular Human Reproduction, Vol 4, 497-501, Copyright © 1998 by Oxford University Press
LM Quinn, LM Kilpatrick, SE Latham and B Kalionis
The adult human endometrium rapidly cycles through stages of cell
proliferation, differentiation and degeneration. Inappropriate endometrial
cell differentiation is a contributing factor in diseases such as
endometrial carcinoma and endometriosis. We have identified two homeobox
genes that may play a role in the control of endometrial cell
differentiation and development. In-situ mRNA hybridization experiments
were used to show differential expression of DLX4 at different phases of
the endometrial cycle. Higher levels of DLX4 expression were observed in
proliferative phase endometrial epithelium compared with secretory phase
endometrial epithelium. The HB24 homeobox gene was shown to be expressed in
both the proliferative and secretory phase endometrial epithelium. We
predict that DLX4 and HB24 will be required for the transcriptional control
of genes important for endometrial cell differentiation. Furthermore, we
propose that DLX4 and HB24 are part of a conserved combinatorial code of
homeobox genes that are required for controlling epithelial-mesenchymal
cell interactions in the endometrium.
JOURNAL ARTICLE
Homeobox genes DLX4 and HB24 are expressed in regions of epithelial- mesenchymal cell interaction in the adult human endometrium
Department of Obstetrics and Gynaecology, Flinders University of South Australia, Flinders Medical Centre, Bedford Park, Australia.
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