Results 41 to 50 of about 10,967 (189)

The Mediator Subunit, Med23 Is Required for Embryonic Survival and Regulation of Canonical WNT Signaling During Cranial Ganglia Development

open access: yesFrontiers in Physiology, 2020
Development of the vertebrate head is a complex and dynamic process, which requires integration of all three germ layers and their derivatives. Of special importance are ectoderm-derived cells that form the cranial placodes, which then differentiate into
Soma Dash   +9 more
doaj   +1 more source

Graded levels of Pax2a and Pax8 regulate cell differentiation during sensory placode formation [PDF]

open access: yesDevelopment, 2012
Pax gene haploinsufficiency causes a variety of congenital defects. Renal-coloboma syndrome, resulting from mutations in Pax2, is characterized by kidney hypoplasia, optic nerve malformation, and hearing loss. Although this underscores the importance of Pax gene dosage in normal development, how differential levels of these transcriptional regulators ...
Matthew N, McCarroll   +5 more
openaire   +2 more sources

Action of Actomyosin Contraction With Shh Modulation Drive Epithelial Folding in the Circumvallate Papilla

open access: yesFrontiers in Physiology, 2020
The mouse tongue possesses three types of gustatory papillae: large circumvallate papillae (CVP), foliate papillae (FOP) and fungiform papillae (FFP). Although CVP is the largest papilla and contain a high density of taste buds, little is known about CVP
Sushan Zhang   +3 more
doaj   +1 more source

Lens apoptosis in the Astyanax blind cavefish is not triggered by its small size or defects in morphogenesis. [PDF]

open access: yesPLoS ONE, 2017
Blindness is a convergent trait in many cave animals of various phyla. Astyanax mexicanus cavefish is one of the best studied cave animals; however the mechanisms underlying eye degeneration in this species are not yet completely understood.
Hélène Hinaux   +5 more
doaj   +1 more source

Dermal Condensate Niche Fate Specification Occurs Prior to Formation and Is Placode Progenitor Dependent.

open access: yesDevelopmental Cell, 2019
Cell fate transitions are essential for specification of stem cells and their niches, but the precise timing and sequence of molecular events during embryonic development are largely unknown.
Ka‐Wai Mok   +14 more
semanticscholar   +1 more source

Pioneer neurog1 expressing cells ingress into the otic epithelium and instruct neuronal specification

open access: yeseLife, 2017
Neural patterning involves regionalised cell specification. Recent studies indicate that cell dynamics play instrumental roles in neural pattern refinement and progression, but the impact of cell behaviour and morphogenesis on neural specification is not
Esteban Hoijman   +3 more
doaj   +1 more source

Differentiation of Cell Types from Non-Neurogenic Placodes

open access: yes, 2021
Chapter 8 reviews how cell types derived from the non-neurogenic placodea, i.e. the lens and adenohypophyseal placodes, differentiate. The lens placode gives rise to lens fiber cells, which are rendered transparent by the accumulation of crystallin proteins.
openaire   +1 more source

Notch signalling regulates epibranchial placode patterning and segregation

open access: yesDevelopment, 2020
Epibranchial placodes are the geniculate, petrosal and nodose placodes that generate parts of cranial nerves VII, IX and X, respectively. How the three spatially separated placodes are derived from the common posterior placodal area is poorly understood.
Li Wang   +7 more
semanticscholar   +1 more source

Cell fate specification in the lingual epithelium is controlled by antagonistic activities of Sonic hedgehog and retinoic acid. [PDF]

open access: yesPLoS Genetics, 2017
The interaction between signaling pathways is a central question in the study of organogenesis. Using the developing murine tongue as a model, we uncovered unknown relationships between Sonic hedgehog (SHH) and retinoic acid (RA) signaling.
Maha El Shahawy   +8 more
doaj   +1 more source

Cadherin-7 mediates proper neural crest cell-placodal neuron interactions during trigeminal ganglia assembly [PDF]

open access: yesgenesis, 2018
ABSTRACTThe cranial trigeminal ganglia play a vital role in the peripheral nervous system through their relay of sensory information from the vertebrate head to the brain. These ganglia are generated from the intermixing and coalescence of two distinct cell populations: cranial neural crest cells and placodal neurons.
Chyong‐Yi Wu, Lisa A. Taneyhill
openaire   +3 more sources

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