Results 131 to 140 of about 40,656 (278)

xNgn2 induces expression of predominantly sensory neuron markers in Xenopus whole embryo ectoderm but induces mixed subtype expression in isolated ectoderm explants

, 2019
Proneural basic-helix-loop-helix (bHLH) proteins, such as Neurogenin2 (Ngn2) and Ascl1, are critical regulators at the onset of neuronal differentiation.

core   +1 more source

Aniridia‐associated keratopathy: Clinical and molecular mechanisms of disease progression and emerging therapeutic targets

Acta Ophthalmologica, EarlyView.
Abstract Congenital aniridia is a rare genetic disorder primarily caused by pathogenic variants of the PAX6 gene. It leads to various panocular anomalies, including aniridia‐associated keratopathy (AAK). This review highlights recent insights into its pathogenesis, focusing on clinical staging, microstructural changes in the cornea and molecular ...
N. Szentmáry, S. Suiwal, M. Amini, F. N. Fries, A. Náray, L. Latta, Z. Li, S. Li, S. Liu, S. L. Hsu, S. Kundu, G. Tóth, S. Trusen, J. Zimmermann, B. Seitz, B. Käsmann‐Kellner, Z. Hoxha, A. Langenbucher, O. Stachs, M. Cortón‐Perez, K. Tory, A. Csorba, Z. Z. Nagy, M. C. Acosta, J. Gallar, M. Csidey, E. Maka, T. Stachon   +27 more
wiley   +1 more source

The Embryonic Development of the Cotylean Polyclad Phrikoceros jannetae

Acta Zoologica, EarlyView.
ABSTRACT Polyclads exhibit distinct developmental modes ranging from direct to indirect development, with several transitional stages also recognised. The existence of an indirect developmental mode in polyclads with a planktonic life history stage in the form of a free‐swimming larva is unique among all free‐living flatworms and makes polyclads a ...
Mehrez Gammoudi, Bernhard Egger, Isabel L. Dittmann, Verónica N. Bulnes, Pavel Tomancak, Abdel Halim Harrath, Johannes Girstmair   +6 more
wiley   +1 more source

The Role of TRAF4 within BMP Signaling and the Developing Ectoderm

, 2015
TGF-β signaling is essential for the induction and patterning of the early embryonic germ layers. Within TGF-β signaling, regulation of BMP signaling is necessary for patterning the ectoderm, where ventrally located BMPs induce epidermis, and dorsally
Gist Nakagawa, Francesca Marie
core  

Increased Eph receptor and myosin activation at the ectoderm–mesoderm contacts.

, 2014
(A) Detection of phospho-EphB by immunofluorescence of a sagittal section from wild-type early gastrula embryo. The upper panel shows a general view of the dorsal region, and the lower panel an enlarged view of the ectoderm–mesoderm boundary.
François Fagotto (5649691), Nazanin Rohani (228955), Rudolf Winklbauer (228966), Andrea Parmeggiani (633054)   +3 more
core   +1 more source

Anatomy and Histology of the Midgut of Atopozelus opsimus (Heteroptera: Reduviidae)

Acta Zoologica, EarlyView.
ABSTRACT Atopozelus opsimus Elkins, 1954 (Heteroptera: Reduviidae) preys on forest and agricultural pests but also feeds on extrafloral nectar; however, its alimentary canal is poorly understood. The aim was to describe the anatomy and histology of the A. opsimus midgut. The alimentary canal of female and male A.
Bruna Silva Lisboa, José Eduardo Serrão, Jamile Fernanda Silva Cossolin, Germano Leão Demolin Leite, José Cola Zanuncio, Sebastião Lourenço de Assis Júnior, Pedro Guilherme Lemes   +6 more
wiley   +1 more source

Retinoic Acid Signalling Regulates Zebrafish Tooth Germ Repair Following Injury

Cell Proliferation, EarlyView.
Retinoic acid signalling may regulate the repair processes in a tooth germ injury model using Tg(scpp5:Dendra2‐NTR) zebrafish and the nitroreductase (NTR)/metronidazole (MTZ) system. ABSTRACT Although the role of retinoic acid (RA) signalling in odontogenesis is well established, its involvement in the repair of injured tooth germs remains unclear.
Qiqi Liu, Zhenan Zhang, Weifeng Hao, Chunyan Zhou, Deqin Yang   +4 more
wiley   +1 more source

Establishment of Human Formative Pluripotent Stem Cell‐Like Cells Exhibiting Amniotic Differentiation Potentials

Cell Proliferation, EarlyView.
The hfPSC‐LCs could be established from naïve hESCs, conventional hESCs, hiPSCs, and human blastocysts. The hfPSC‐LCs hold robust capacity for three germ layers, hPGCLCs, and hALPCs. ABSTRACT Human embryos undergo pivotal morphogenetic remodelling shortly after implantation. The understanding of this crucial stage is severely impeded by the scarcity of
Xiaoxiao Wang, Qizhi Wang, Yu Wu, Chen Gu, Mingfei Li, Yong Fan, Xiangjin Kang, Lei Li, Zheng Gao, Mingyan Hei, Jianqiao Liu, Lei Li   +11 more
wiley   +1 more source

Transcriptional requirements of ectoderm specification and the master regulatory roles of maternal Foxi2 and Sox3 [PDF]

An integral feature of early metazoan development is primary germ layer specification, reliant upon coordinated transcription factor (TF) interactions forming an epigenetic landscape permissible for transcription activation.
Hendrickson, Clark Lee
core  

Collagen Type VI Alpha 1 as a Regulator of Redox Homeostasis in Antioxidant‐Enhanced Osteogenesis of Dental Stem Cells

Cell Proliferation, EarlyView.
Under physiological conditions, NAC activates the PI3K‐AKT‐COL6A1 axis to sustain redox balance and enhance osteogenesis. COL6A1 deficiency, however, compromises this axis, inducing oxidative stress and impairing NAC's osteogenic efficacy. ABSTRACT Alveolar bone injury represents a prevalent clinical challenge in dentistry, for which stem cell‐based ...
Zhaosong Meng, Jiacheng Liu, Yue Zhang, Ruimeng Yang, Jingyi Zhang, Haosun Yang, Zheng Wang, Ran Wei, Zhe Li, Shuling Guo, Lizhi Hu, Lei Sui   +11 more
wiley   +1 more source