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Keywords: Placode
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Journal Articles
Journal: Development
Development (2022) 149 (20): dev200831.
Published: 30 August 2022
...Eleonora Conti; Oliver Harschnitz ABSTRACT Placodes are embryonic structures originating from the rostral ectoderm that give rise to highly diverse organs and tissues, comprising the anterior pituitary gland, paired sense organs and cranial sensory ganglia. Their development, including...
Journal Articles
Journal: Development
Development (2021) 148 (4): dev193227.
Published: 16 February 2021
...Aditi Dubey; Jianshi Yu; Tian Liu; Maureen A. Kane; Jean-Pierre Saint-Jeannet ABSTRACT All paired sensory organs arise from a common precursor domain called the pre-placodal region (PPR). In Xenopus , Zic1 non-cell autonomously regulates PPR formation by activating retinoic acid (RA) production...
Includes: Supplementary data
Journal Articles
Journal: Development
Development (2019) 146 (22): dev171405.
Published: 21 November 2019
... that this non-neural origin of pineal progenitors is conserved in amniotes. Genetic repression of placodal, but not neural crest, cell fate results in pineal hypoplasia in zebrafish, while mis-expression of transcription factors known to specify placodal identity during gastrulation promotes the formation...
Includes: Supplementary data
Journal Articles
Journal: Development
Development (2017) 144 (22): 4078–4090.
Published: 15 November 2017
... of Biologists Ltd 2017 Summary: This Review presents current knowledge of the development of the sensory microdomains in mammalian skin and the mechanosensory neurons that innervate them. Touch Skin Hair follicle Merkel cell Placode Axon guidance Like all senses, the sense of touch...
Journal Articles
Journal: Development
Development (2017) 144 (8): 1531–1543.
Published: 15 April 2017
...Jingchen Chen; Monica Tambalo; Meyer Barembaum; Ramya Ranganathan; Marcos Simões-Costa; Marianne E. Bronner; Andrea Streit The inner ear is a complex vertebrate sense organ, yet it arises from a simple epithelium, the otic placode. Specification towards otic fate requires diverse signals...
Includes: Supplementary data
Journal Articles
Journal: Development
Development (2016) 143 (15): 2803–2817.
Published: 1 August 2016
... Ahtiainen , L. , Lefebvre , S. , Lindfors , P. H. , Renvoisé , E. , Shirokova , V. , Vartiainen , M. K. , Thesleff , I. and Mikkola , M. L. ( 2014 ). Directional cell migration, but not proliferation, drives hair placode morphogenesis . Dev. Cell   28 , 588 - 602...
Includes: Supplementary data
Journal Articles
Journal: Development
Development (2016) 143 (9): 1512–1522.
Published: 1 May 2016
...Philip Tomann; Ralf Paus; Sarah E. Millar; Claus Scheidereit; Ruth Schmidt-Ullrich ABSTRACT In the epidermis of mice lacking transcription factor nuclear factor-kappa B (NF-κB) activity, primary hair follicle (HF) pre-placode formation is initiated without progression to proper placodes. NF-κB...
Includes: Supplementary data
Journal Articles
Journal: Development
Development (2016) 143 (4): 670–681.
Published: 15 February 2016
...Jingjing Li; Lemonia Chatzeli; Eleni Panousopoulou; Abigail S. Tucker; Jeremy B. A. Green Ectodermal organs, which include teeth, hair follicles, mammary ducts, and glands such as sweat, mucous and sebaceous glands, are initiated in development as placodes, which are epithelial thickenings...
Includes: Supplementary data
Journal Articles
Journal: Development
Development (2014) 141 (15): 3033–3039.
Published: 1 August 2014
... scutes. Studies of turtle development have mostly focused on the bones of the shell; however, the genetic regulation of the epidermal scutes has not been investigated. Here, we show that scutes develop from an array of patterned placodes and that these placodes are absent from a soft-shelled turtle...
Includes: Supplementary data
Journal Articles
Journal: Development
Development (2014) 141 (15): 3084–3092.
Published: 1 August 2014
... governing morphogenesis of the palps. It is conceivable that Islet is also essential for the cellular morphogenesis of placode-derived sensory neurons in vertebrates. We have presented evidence that the LIM-HD transcription factor Islet directs the cell elongation that results in the palp protrusions...
Includes: Supplementary data
Journal Articles
Journal: Development
Development (2013) 140 (23): 4703–4708.
Published: 1 December 2013
...Tatsuro Ikeda; Terumi Matsuoka; Yutaka Satou The ascidian larval brain and palps (a putative rudimentary placode) are specified by two transcription factor genes, ZicL and FoxC , respectively. FGF9/16/20 induces ZicL expression soon after the bi-potential ancestral cells divide into the brain...
Includes: Supplementary data
Journal Articles
Journal: Development
Development (2013) 140 (17): 3595–3600.
Published: 1 September 2013
...Sabine Freter; Stephen J. Fleenor; Rasmus Freter; Karen J. Liu; Jo Begbie The majority of cranial sensory neurons originate in placodes in the surface ectoderm, migrating to form ganglia that connect to the central nervous system (CNS). Interactions between inward-migrating sensory neuroblasts...
Includes: Supplementary data
Journal Articles
Journal: Development
Development (2013) 140 (10): 2212–2223.
Published: 15 May 2013
... in early-branching metazoan species remains poorly understood. Here we demonstrate that three fundamental processes contribute to embryonic tentacle development in the cnidarian Nematostella vectensis . First, a pseudostratified ectodermal placode forms at the oral pole of developing larvae...
Includes: Supplementary data
Journal Articles
Journal: Development
Development (2012) 139 (15): 2740–2750.
Published: 1 August 2012
... and Pax8 modulate commitment and behavior in cells that eventually contribute to the otic vesicle and epibranchial placodes. Initially, a subset of epibranchial placode precursors lie lateral to otic precursors within a single Pax2a/8-positive domain; these cells subsequently move to segregate...
Includes: Multimedia, Supplementary data
Journal Articles
Journal: Development
Development (2012) 139 (13): 2351–2359.
Published: 1 July 2012
...Eileen Wagner; Michael Levine The Ciona tadpole is constructed from simple, well-defined cell lineages governed by provisional gene networks that have been defined via extensive gene disruption assays. Here, we examine the patterning of the anterior neural plate, which produces placodal derivatives...
Includes: Supplementary data
Journal Articles
Journal: Development
Development (2012) 139 (12): 2156–2160.
Published: 15 June 2012
... that the RA- Hox1 network also functions in the epidermal ectoderm of chordates. Here, we show that in the urochordate ascidian Ciona intestinalis , RA- Hox1 in the epidermal ectoderm is necessary for formation of the atrial siphon placode (ASP), a structure homologous to the vertebrate otic placode. Loss...
Includes: Multimedia, Supplementary data
Journal Articles
Journal: Development
Development (2010) 137 (11): 1777–1785.
Published: 1 June 2010
... common precursor domain: the posterior placodal area. This review summarises recent studies into the induction, morphogenesis and innervation of these systems and discusses lineage restriction and cell specification in the context of their common origin. The upregulation of proneural basic helix...
Journal Articles
Journal: Development
Development (2009) 136 (24): 4155–4164.
Published: 15 December 2009
...Celia E. Shiau; Marianne Bronner-Fraser Vertebrate cranial sensory ganglia have a dual origin from the neural crest and ectodermal placodes. In the largest of these, the trigeminal ganglion, Slit1-Robo2 signaling is essential for proper ganglion assembly. Here, we demonstrate a crucial role...
Includes: Supplementary data
Journal Articles
Journal: Development
Development (2009) 136 (13): 2187–2197.
Published: 1 July 2009
...Crestina L. Beites; Piper L. W. Hollenbeck; Joon Kim; Robin Lovell-Badge; Arthur D. Lander; Anne L. Calof The regenerative capacity of many placode-derived epithelial structures makes them of interest for understanding the molecular control of epithelial stem cells and their niches. Here, we...
Includes: Supplementary data
Journal Articles
Journal: Development
Development (2009) 136 (2): 219–229.
Published: 15 January 2009
...Heather L. Szabo-Rogers; Poongodi Geetha-Loganathan; Cheryl J. Whiting; Suresh Nimmagadda; Katherine Fu; Joy M. Richman The position of the olfactory placodes suggests that these epithelial thickenings might provide morphogenetic information to the adjacent facial mesenchyme. To test this, we...
Includes: Supplementary data