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The Hox-4.8 gene is localized at the 5' extremity of the Hox-4 complex and is expressed in the most posterior parts of the body during development

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Mesomelic dysplasias associated with the HOXD locus are caused by regulatory reallocations

Denis Duboule, Lucille Delisle, Christopher Chase Bolt

Mesomelic dysplasia, a severe shortening and bending of the limb, has been linked to rearrangements in the HoxD cluster in humans and mice. Here the authors engineer a 1 Mb inversion including the HoxD gene cluster and use this model to provide a mechanist ...

NATURE PORTFOLIO2021

Hox genes encode transcription factors (TFs) that establish morphological diversity in the developing embryo. The similar DNA-binding motifs of the various HOX TFs contrast with the wide-range of HOX-dependent genetic programs. The influence of the chromat ...

2020

Coordinated Hoxd genes expression during embryogenesis is dependent on a strict disposition of genes and polarized regulators within the HoxD cluster

Fabrice Daniel Darbellay

HOX transcription factors determine the identity of body regions along the rostro-caudal axis during bilaterian embryogenesis. In vertebrates Hox genes distinctively lie organized in dense clusters, each typically composed of a dozen paralogous transcripti ...

EPFL2018

Heterogeneous combinatorial expression of Hoxd genes in single cells during limb development

Denis Duboule, Marion Leleu, Pierre Raymond Fabre

Background: Global analyses of gene expression during development reveal specific transcription patterns associated with the emergence of various cell types, tissues, and organs. These heterogeneous patterns are instrumental to ensure the proper formation ...

BMC2018

Integration of Shh and Fgf signaling in controlling Hox gene expression in cultured limb cells

Denis Duboule, Guillaume Andrey, Patrick Schorderet, Nayuta Yakushiji

During embryonic development, fields of progenitor cells form complex structures through dynamic interactions with external signaling molecules. How complex signaling inputs are integrated to yield appropriate gene expression responses is poorly understood ...

National Academy of Sciences2017

Embryonic timing, axial stem cells, chromatin dynamics, and the Hox clock

Denis Duboule

Collinear regulation of Hox genes in space and time has been an outstanding question ever since the initial work of Ed Lewis in 1978. Here we discuss recent advances in our understanding of this phenomenon in relation to novel concepts associated with larg ...

Cold Spring Harbor Laboratory Press2017

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During embryonic development, Hox genes participate in the building of a functional digestive system in metazoans, and genetic conditions involving these genes lead to important, sometimes lethal,growth retardation. Recently, this phenotype was obtained af ...

Proceedings of the National Academy of Sciences2017

Hotair Is Dispensible for Mouse Development

Denis Duboule, Anamaria Necsulea

Despite the crucial importance of Hox genes functions during animal development, the mechanisms that control their transcription in time and space are not yet fully understood. In this context, it was proposed that Hotair, a lncRNA transcribed from within ...

Public Library Science2016

Polycomb group (PcG) proteins play a pivotal role in silencing developmental genes and help to maintain various stem and precursor cells and regulate their differentiation. PcG factors also regulate dynamic and complex regional specification, particularly ...

Company Of Biologists Ltd2016

Temporal dynamics and developmental memory of 3D chromatin architecture at Hox gene loci

Denis Duboule, Marion Leleu, Daniël Noordermeer, Patrick Schorderet

Hox genes are essential regulators of embryonic development. Their step-wise transcriptional activation follows their genomic topology and the various states of activation are subsequently memorized into domains of progressively overlapping gene products. ...

Elife Sciences Publications Ltd2014