{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,3]],"date-time":"2026-07-03T18:06:46Z","timestamp":1783102006146,"version":"3.54.6"},"reference-count":38,"publisher":"The Company of Biologists","issue":"14","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2013,7,15]]},"abstract":"<jats:p>Hox genes are key regulators of development. In mammals, the study of these genes is greatly confounded by their large number, overlapping functions and interspersed shared enhancers. Here, we describe the use of a novel recombineering strategy to introduce simultaneous frameshift mutations into the flanking Hoxa9, Hoxa10 and Hoxa11 genes, as well as their paralogs on the HoxD cluster. The resulting Hoxa9,10,11 mutant mice displayed dramatic synergistic homeotic transformations of the reproductive tracts, with the uterus anteriorized towards oviduct and the vas deferens anteriorized towards epididymis. The Hoxa9,10,11 mutant mice also provided a genetic setting that allowed the discovery of Hoxd9,10,11 redundant reproductive tract patterning function. Both shared and distinct Hox functions were defined. Hoxd9,10,11 play a crucial role in the regulation of uterine immune function. Non-coding non-polyadenylated RNAs were among the key Hox targets, with dramatic downregulation in mutants. We observed Hox cross-regulation of transcription and splicing. In addition, we observed a surprising anti-dogmatic apparent posteriorization of the uterine epithelium. In caudal regions of the uterus, the normal simple columnar epithelium flanking the lumen was replaced by a pseudostratified transitional epithelium, normally found near the more posterior cervix. These results identify novel molecular functions of Hox genes in the development of the male and female reproductive tracts.<\/jats:p>","DOI":"10.1242\/dev.092569","type":"journal-article","created":{"date-parts":[[2013,6,12]],"date-time":"2013-06-12T22:43:31Z","timestamp":1371077011000},"page":"2942-2952","source":"Crossref","is-referenced-by-count":48,"title":["Recombineering-based dissection of flanking and paralogous Hox gene functions in mouse reproductive tracts"],"prefix":"10.1242","volume":"140","author":[{"given":"Anna M.","family":"Raines","sequence":"first","affiliation":[{"name":"Division of Developmental Biology, Cincinnati Children\u2019s Hospital Medical Center, Cincinnati, OH 45229, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mike","family":"Adam","sequence":"additional","affiliation":[{"name":"Division of Developmental Biology, Cincinnati Children\u2019s Hospital Medical Center, Cincinnati, OH 45229, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bliss","family":"Magella","sequence":"additional","affiliation":[{"name":"Division of Developmental Biology, Cincinnati Children\u2019s Hospital Medical Center, Cincinnati, OH 45229, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sara E.","family":"Meyer","sequence":"additional","affiliation":[{"name":"Division of Immunobiology, Cincinnati Children\u2019s Hospital Medical Center, Cincinnati, OH 45229, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H. Leighton","family":"Grimes","sequence":"additional","affiliation":[{"name":"Division of Immunobiology, Cincinnati Children\u2019s Hospital Medical Center, Cincinnati, OH 45229, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sudhansu K.","family":"Dey","sequence":"additional","affiliation":[{"name":"Division of Reproductive Sciences, Cincinnati Children\u2019s Hospital Medical Center, Cincinnati, OH 45229, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S. 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