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https://www.readbyqxmd.com/read/28315296/annexin-a6-controls-neuronal-membrane-dynamics-throughout-chick-cranial-sensory-gangliogenesis
#1
Ankita Shah, Andrew T Schiffmacher, Lisa A Taneyhill
Cranial sensory ganglia are components of the peripheral nervous system that possess a significant somatosensory role and include neurons within the trigeminal and epibranchial nerve bundles. Although it is well established that these ganglia arise from interactions between neural crest and neurogenic placode cells, the molecular basis of ganglia assembly is still poorly understood. Members of the Annexin protein superfamily play key roles in sensory nervous system development throughout metazoans. Annexin A6 is expressed in chick trigeminal and epibranchial placode cell-derived neuroblasts and neurons, but its function in cranial ganglia formation has not been elucidated...
March 14, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28301481/colec10-is-mutated-in-3mc-patients-and-regulates-early-craniofacial-development
#2
Mustafa M Munye, Anna Diaz-Font, Louise Ocaka, Maiken L Henriksen, Melissa Lees, Angela Brady, Dagan Jenkins, Jenny Morton, Soren W Hansen, Chiara Bacchelli, Philip L Beales, Victor Hernandez-Hernandez
3MC syndrome is an autosomal recessive heterogeneous disorder with features linked to developmental abnormalities. The main features include facial dysmorphism, craniosynostosis and cleft lip/palate; skeletal structures derived from cranial neural crest cells (cNCC). We previously reported that lectin complement pathway genes COLEC11 and MASP1/3 are mutated in 3MC syndrome patients. Here we define a new gene, COLEC10, also mutated in 3MC families and present novel mutations in COLEC11 and MASP1/3 genes in a further five families...
March 16, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28291836/unique-spatiotemporal-requirements-for-intraflagellar-transport-genes-during-forebrain-development
#3
John Snedeker, Elizabeth N Schock, Jamie N Struve, Ching-Fang Chang, Megan Cionni, Pamela V Tran, Samantha A Brugmann, Rolf W Stottmann
Primary cilia are organelles extended from virtually all cells and are required for the proper regulation of a number of canonical developmental pathways. The role in cortical development of proteins important for ciliary form and function is a relatively understudied area. Here we have taken a genetic approach to define the role in forebrain development of three intraflagellar transport proteins known to be important for primary cilia function. We have genetically ablated Kif3a, Ift88, and Ttc21b in a series of specific spatiotemporal domains...
2017: PloS One
https://www.readbyqxmd.com/read/28291424/giant-melanotic-neuroectodermal-tumor-of-infancy-melanotic-progonoma-of-the-head-and-neck-report-of-a-malignant-case
#4
Giancarlo Nicosia, Pietro Spennato, Ferdinando Aliberti, Daniele Cascone, Lucia Quaglietta, Maria Elena Errico, Mario Muto, Franco Ionna, Giuseppe Cinalli
Melanotic neuroectodermal tumor of infancy is a rare congenital pigmented neoplasm of neural crest origin, locally aggressive, growing rapidly and developing during the 1st year of life. It most commonly arises from the maxilla, cranial vault, and mandible. Occasionally, it exhibits malignant behavior with local lymph nodes involvement. Cases misdiagnosed and left untreated for a long time can present challenges due to the tumor mass and infiltration. In these cases, adjuvant chemotherapy can be extremely helpful before radical excision...
February 24, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28287247/trunk-neural-crest-cells-formation-migration-and-beyond
#5
Guillermo A Vega-Lopez, Santiago Cerrizuela, Manuel J Aybar
Neural crest cells (NCCs) are a multipotent, migratory cell population that generates an astonishingly diverse array of cell types during vertebrate development. The trunk neural crest has long been considered of particular significance. First, it has been held that the trunk neural crest has a morphogenetic role, acting to coordinate the development of the peripheral nervous system, secretory cells of the endocrine system and pigment cells of the skin. Second, the trunk neural crest additionally has skeletal potential...
2017: International Journal of Developmental Biology
https://www.readbyqxmd.com/read/28286175/cilia-dependent-gli-processing-in-neural-crest-cells-is-required-for-tongue-development
#6
Grethel Millington, Kelsey Elliott, Ya-Ting Chang, Ching-Fang Chang, Andrzej Dlugosz, Samantha A Brugmann
Ciliopathies are a class of diseases caused by the loss of a ubiquitous, microtubule-based organelle called a primary cilium. Ciliopathies commonly result in defective development of the craniofacial complex, causing midfacial defects, craniosynostosis, micrognathia and aglossia. Herein, we explored how the conditional loss of primary cilia on neural crest cells (Kif3a(f/f);Wnt1-Cre) generated aglossia. On a cellular level, our data revealed that aglossia in Kif3a(f/f);Wnt1-Cre embryos was due to a loss of mesoderm-derived muscle precursors migrating into and surviving in the tongue anlage...
March 9, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28284154/contribution-of-g-protein-coupled-estrogen-receptor-1-gper-to-17%C3%AE-estradiol-induced-developmental-toxicity-in-zebrafish
#7
Graciel Diamante, Norma Menjivar-Cervantes, Man Sin Leung, David C Volz, Daniel Schlenk
Exposure to 17β-estradiol (E2) influences the regulation of multiple signaling pathways, and E2-mediated disruption of signaling events during early development can lead to malformations such as cardiac defects. In this study, we investigated the potential role of the G-protein estrogen receptor 1 (GPER) in E2-induced developmental toxicity. Zebrafish embryos were exposed to E2 from 2h post fertilization (hpf) to 76 hpf with subsequent transcriptional measurements of heart and neural crest derivatives expressed 2 (hand2), leucine rich repeat containing 10 (lrrc10), and gper at 12, 28 and 76 hpf...
March 2, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28280459/arundic-acid-prevents-developmental-upregulation-of-s100b-expression-and-inhibits-enteric-glial-development
#8
Marlene M Hao, Elena Capoccia, Carla Cirillo, Werend Boesmans, Pieter Vanden Berghe
S100B is expressed in various types of glial cells and is involved in regulating many aspects of their function. However, little is known about its role during nervous system development. In this study, we investigated the effect of inhibiting the onset of S100B synthesis in the development of the enteric nervous system, a network of neurons and glia located in the wall of the gut that is vital for control of gastrointestinal function. Intact gut explants were taken from embryonic day (E)13.5 mice, the day before the first immunohistochemical detection of S100B, and cultured in the presence of arundic acid, an inhibitor of S100B synthesis, for 48 h...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28279759/what-do-we-know-about-the-structure-of-human-thymic-hassall-s-corpuscles-a-histochemical-immunohistochemical-and-electron-microscopic-study
#9
Renáta Mikušová, Veronika Mešťanová, Štefan Polák, Ivan Varga
Hassall's corpuscles are the most prominent structures in the human thymus. However, relatively few analyses have been performed to determine their function and cellular origins during development. In this study, we evaluated the cellular microenvironment of human thymic Hassall's corpuscles using histochemistry, immunohistochemistry, and transmission electron microscopy. We examined 95 human thymic tissue samples, which were perioperatively obtained from children undergoing cardiac surgery. To characterize the complex cellular microenvironment of human thymic corpuscles, we used a panel of 14 different antibodies to identify discrete cell types...
March 6, 2017: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/28266869/pig-induced-pluripotent-stem-cell-derived-neural-rosettes-parallel-human-differentiation-into-sensory-neural-subtypes
#10
Robin L Webb, Amalia Gallegos-Cárdenas, Colette N Miller, Nicholas J Solomotis, Hong-Xiang Liu, Franklin D West, Steven L Stice
The pig is the large animal model of choice for study of nerve regeneration and wound repair. Availability of porcine sensory neural cells would conceptually allow for analogous cell-based peripheral nerve regeneration in porcine injuries of similar severity and size to those found in humans. After recently reporting that porcine (or pig) induced pluripotent stem cells (piPSCs) differentiate into neural rosette (NR) structures similar to human NRs, here we demonstrate that pig NR cells could differentiate into neural crest cells and other peripheral nervous system-relevant cell types...
March 7, 2017: Cellular Reprogramming
https://www.readbyqxmd.com/read/28261927/challenging-differential-diagnosis-of-an-extra-adrenal-paraganglioma-the-role-of-fine-needle-aspiration-cytology
#11
Ioannis Ntanasis-Stathopoulos, Diamantis I Tsilimigras, Eirini Klapsinou, Dimitra Daskalopoulou, Simona Vaida, Niki Arnogiannaki, Charitini Salla
Paragangliomas are rare neoplasms that arise from neural crest cells of the autonomous system. Herein, we present a case of a 37-year-old patient with a history of retroperitoneal paraganglioma and tuberculous infection presenting with a paraganglioma of the neck that was initially misdiagnosed as metastatic tumor originating from the lungs. Cytological features from fine needle aspiration and immunocytochemistry pointed to the right diagnosis. However, distinguishing between primary and metastatic site of a paraganglioma can be very challenging due to the overlapping features of these entities...
March 6, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28260051/microrna-1-upregulation-promotes-myocardiocyte-proliferation-and-suppresses-apoptosis-during-heart-development
#12
Liping Liu, Yonghua Yuan, Xuehua He, Xiaohui Xia, Xiaoyang Mo
Previous studies have investigated the role of microRNAs (miRs) in heart development to reveal the miRNA mechanism of action in congenital heart disease (CHD) in children. The present study aimed to investigate the role of miR‑1 in heart development in P19 cells. The mRNA level for miR‑1 in P19 cells was detected before or after cardiomyocyte differentiation, using reverse transcription‑quantitative polymerase chain reaction analysis. Expression of cardiomyocyte differentiation markers was also analyzed...
March 3, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28258200/endogenous-natural-complement-inhibitor-regulates-cardiac-development
#13
Simon A Mortensen, Louise L Skov, Kasper Kjaer-Sorensen, Annette G Hansen, Søren Hansen, Frederik Dagnæs-Hansen, Jens C Jensenius, Claus Oxvig, Steffen Thiel, Søren E Degn
Congenital heart defects are a major cause of perinatal mortality and morbidity, affecting >1% of all live births in the Western world, yet a large fraction of such defects have an unknown etiology. Recent studies demonstrated surprising dual roles for immune-related molecules and their effector mechanisms during fetal development and adult homeostasis. In this article, we describe the function of an endogenous complement inhibitor, mannan-binding lectin (MBL)-associated protein (MAp)44, in regulating the composition of a serine protease-pattern recognition receptor complex, MBL-associated serine protease (MASP)-3/collectin-L1/K1 hetero-oligomer, which impacts cardiac neural crest cell migration...
March 3, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28256591/nicotinic-acid-inhibits-glioma-invasion-by-facilitating-snail1-degradation
#14
Jiejing Li, Jiagui Qu, Yu Shi, Mark Perfetto, Zhuxian Ping, Laura Christian, Hua Niu, Shuting Mei, Qin Zhang, Xiangcai Yang, Shuo Wei
Malignant glioma is a formidable disease that commonly leads to death, mainly due to the invasion of tumor cells into neighboring tissues. Therefore, inhibition of tumor cell invasion may provide an effective therapy for malignant glioma. Here we report that nicotinic acid (NA), an essential vitamin, inhibits glioma cell invasion in vitro and in vivo. Treatment of the U251 glioma cells with NA in vitro results in reduced invasion, which is accompanied by a loss of mesenchymal phenotype and an increase in cell-cell adhesion...
March 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28255527/modeling-human-craniofacial-disorders-in-xenopus
#15
Aditi Dubey, Jean-Pierre Saint-Jeannet
PURPOSE OF REVIEW: Craniofacial disorders are among the most common human birth defects and present an enormous health care and social burden. The development of animal models has been instrumental to investigate fundamental questions in craniofacial biology and this knowledge is critical to understand the etiology and pathogenesis of these disorders. RECENT FINDINGS: The vast majority of craniofacial disorders arise from abnormal development of the neural crest, a multipotent and migratory cell population...
March 2017: Current Pathobiology Reports
https://www.readbyqxmd.com/read/28255385/reelin-and-its-receptors-vldlr-and-apoer2-in-melanocytic-nevi
#16
A Mihail, G Coman, F Staniceanu, L Coman, S Zurac, O A Coman
Reelin is an extracellular signaling protein synthesized by Cajal-Retius cells in utero and early after birth, its presence being signaled in adult life too. Reelin acts on its receptors, VLDLR and ApoER2, acting on cytoskeleton, controlling migration and subsequently positioning and stabilizing the cortical neurons. We investigated the reelin presence and its receptors, VLDLR and ApoER2, in melanocytic nevi considering the neural crest origin of the nevus cells and their migration into skin during embrionary period...
January 2017: Journal of Medicine and Life
https://www.readbyqxmd.com/read/28255129/-an-adrenal-neuroblastoma-regression-diagnosed-and-followed-by-ultrasound-a-case-report
#17
Chao Tian, Lie Chen, Caiyi Zhu
Neuroblastoma is an embryonal tumor of the sympathetic nervous system, arising during fetal or early post-natal life from sympathetic cells derived from the neural crest. A 9-day-old boy was diagnosed as adrenal neuroblastoma with liver metastasis by biopsy. After 6 years of follow-up with ultrasound observation, the boy presents a process of spontaneous recovery without any special treatment. Spontaneous regression of cancer is defined as the decrease in size or disappearance of a primary tumor or metastatic disease without therapeutic intervention...
February 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28253541/should-i-stay-or-should-i-go-cadherin-function-and-regulation-in-the-neural-crest
#18
REVIEW
Lisa A Taneyhill, Andrew T Schiffmacher
Our increasing comprehension of neural crest cell development has reciprocally advanced our understanding of cadherin expression, regulation, and function. As a transient population of multipotent stem cells that significantly contribute to the vertebrate body plan, neural crest cells undergo a variety of transformative processes and exhibit many cellular behaviors, including epithelial-to-mesenchymal-transition (EMT), motility, collective cell migration, and differentiation. Multiple studies have elucidated regulatory and mechanistic details of specific cadherins during neural crest cell development in a highly contextual manner...
March 2, 2017: Genesis: the Journal of Genetics and Development
https://www.readbyqxmd.com/read/28253399/foxc1-and-foxc2-in-the-neural-crest-are-required-for-ocular-anterior-segment-development
#19
Seungwoon Seo, Lisheng Chen, Wenzhong Liu, Demin Zhao, Kathryn M Schultz, Amy Sasman, Ting Liu, Hao F Zhang, Philip J Gage, Tsutomu Kume
Purpose: The large Forkhead (Fox) transcription factor family has essential roles in development, and mutations cause a wide range of ocular and nonocular disease. One member, Foxc2 is expressed in neural crest (NC)-derived periocular mesenchymal cells of the developing murine eye; however, its precise role in the development, establishment, and maintenance of the ocular surface has yet to be investigated. Methods: To specifically delete Foxc2 from NC-derived cells, conditional knockout mice for Foxc2 (NC-Foxc2-/-) were generated by crossing Foxc2F mice with Wnt1-Cre mice...
March 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28253350/sox10-contributes-to-the-balance-of-fate-choice-in-dorsal-root-ganglion-progenitors
#20
Mariana Delfino-Machín, Romain Madelaine, Giorgia Busolin, Masataka Nikaido, Sarah Colanesi, Karen Camargo-Sosa, Edward W P Law, Stefano Toppo, Patrick Blader, Natascia Tiso, Robert N Kelsh
The development of functional peripheral ganglia requires a balance of specification of both neuronal and glial components. In the developing dorsal root ganglia (DRGs), these components form from partially-restricted bipotent neuroglial precursors derived from the neural crest. Work in mouse and chick has identified several factors, including Delta/Notch signaling, required for specification of a balance of these components. We have previously shown in zebrafish that the Sry-related HMG domain transcription factor, Sox10, plays an unexpected, but crucial, role in sensory neuron fate specification in vivo...
2017: PloS One
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