ABSTRACT
HOX genes are a family of regulatory genes that encode transcription factors and are
essential during embryonic development. These genes are highly conserved between species
such that all metazoans possess a common genetic system for embryonic patterning.
This system is conserved in the reproductive tract, where HOX genes are involved in the development of the müllerian system. The reproductive tract
is unusual in that HOX genes continue to be expressed in the adult. HOX genes are essential both for appropriate reproductive tract development and for adult
function. This article reviews the role of HOX genes in the development of the reproductive tract and the effect of HOX gene mutations on the development of the reproductive tract in both mice and humans.
It then reviews the role and regulation of HOX genes in the adult function of the reproductive tract, specifically evidence that
HOX genes are important for human endometrial development and receptivity.
KEYWORD
reproduction - homeobox genes - development