keyword
MENU ▼
Read by QxMD icon Read
search

Cilia

keyword
https://www.readbyqxmd.com/read/28817564/cell-cycle-related-kinase-ccrk-regulates-ciliogenesis-and-hedgehog-signaling-in-mice
#1
Ashley Snouffer, Desmond Brown, Hankyu Lee, Jonathon Walsh, Floria Lupu, Ryan Norman, Karl Lechtreck, Hyuk Wan Ko, Jonathan Eggenschwiler
The Hedgehog (Hh) signaling pathway plays a key role in cell fate specification, proliferation, and survival during mammalian development. Cells require a small organelle, the primary cilium, to respond properly to Hh signals and the key regulators of Hh signal transduction exhibit dynamic localization to this organelle when the pathway is activated. Here, we investigate the role of Cell Cycle Related kinase (CCRK) in regulation of cilium-dependent Hh signaling in the mouse. Mice mutant for Ccrk exhibit a variety of developmental defects indicative of inappropriate regulation of this pathway...
August 17, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28814779/the-beach-protein-lrba-promotes-the-localization-of-the-heterotrimeric-g-protein-golf-to-olfactory-cilia
#2
Stefan Kurtenbach, Andreas Gießl, Siv Strömberg, Jan Kremers, Jenny Atorf, Sebastian Rasche, Eva M Neuhaus, Denis Hervé, Johann Helmut Brandstätter, Esther Asan, Hanns Hatt, Manfred W Kilimann
BEACH domain proteins are involved in membrane protein traffic and human diseases, but their molecular mechanisms are not understood. The BEACH protein LRBA has been implicated in immune response and cell proliferation, and human LRBA mutations cause severe immune deficiency. Here, we report a first functional and molecular phenotype outside the immune system of LRBA-knockout mice: compromised olfaction, manifesting in reduced electro-olfactogram response amplitude, impaired food-finding efficiency, and smaller olfactory bulbs...
August 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28814713/gelsolin-dysfunction-causes-photoreceptor-loss-in-induced-pluripotent-cell-and-animal-retinitis-pigmentosa-models
#3
Roly Megaw, Hashem Abu-Arafeh, Melissa Jungnickel, Carla Mellough, Christine Gurniak, Walter Witke, Wei Zhang, Hemant Khanna, Pleasantine Mill, Baljean Dhillon, Alan F Wright, Majlinda Lako, Charles Ffrench-Constant
Mutations in the Retinitis Pigmentosa GTPase Regulator (RPGR) cause X-linked RP (XLRP), an untreatable, inherited retinal dystrophy that leads to premature blindness. RPGR localises to the photoreceptor connecting cilium where its function remains unknown. Here we show, using murine and human induced pluripotent stem cell models, that RPGR interacts with and activates the actin-severing protein gelsolin, and that gelsolin regulates actin disassembly in the connecting cilium, thus facilitating rhodopsin transport to photoreceptor outer segments...
August 16, 2017: Nature Communications
https://www.readbyqxmd.com/read/28811631/development-of-a-primary-human-co-culture-model-of-inflamed-airway-mucosa
#4
Lael M Yonker, Hongmei Mou, Kengyeh K Chu, Michael A Pazos, Huimin Leung, Dongyao Cui, Jinhyeob Ryu, Rhianna M Hibbler, Alexander D Eaton, Tim N Ford, J R Falck, T Bernard Kinane, Guillermo J Tearney, Jayaraj Rajagopal, Bryan P Hurley
Neutrophil breach of the mucosal surface is a common pathological consequence of infection. We present an advanced co-culture model to explore neutrophil transepithelial migration utilizing airway mucosal barriers differentiated from primary human airway basal cells and examined by advanced imaging. Human airway basal cells were differentiated and cultured at air-liquid interface (ALI) on the underside of 3 µm pore-sized transwells, compatible with the study of transmigrating neutrophils. Inverted ALIs exhibit beating cilia and mucus production, consistent with conventional ALIs, as visualized by micro-optical coherence tomography (µOCT)...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28811097/type-i-collagen-promotes-primary-cilia-growth-through-down-regulating-hdac6-mediated-autophagy-in-confluent-mouse-embryo-fibroblast-3t3-l1-cells
#5
Qian Xu, Weiwei Liu, Xiaoling Liu, Wuxiyar Otkur, Toshihiko Hayashi, Masayuki Yamato, Hitomi Fujisaki, Shunji Hattori, Shin-Ichi Tashiro, Takashi Ikejima
Primary cilia are microtubule-based organelles that extend from nearly all vertebrate cells. Abnormal ciliogenesis and cilia length are suggested to be associated with hypertension and obesity as well as diseases such as Meckel-Gruber syndrome. Extracellular matrix (ECM), comprising cellular microenvironment, influences cell shape and proliferation. However, influence of ECM on cilia biogenesis has not been well studied. In this study we examined the effects of type I collagen (col I), the major component of ECM, on primary cilia growth...
August 12, 2017: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/28807147/trpp2-ion-channels-critical-regulators-of-organ-morphogenesis-in-health-and-disease
#6
REVIEW
Tilman Busch, Michael Köttgen, Alexis Hofherr
Ion channels control the membrane potential and mediate transport of ions across membranes. Archetypical physiological functions of ion channels include processes such as regulation of neuronal excitability, muscle contraction, or transepithelial ion transport. In that regard, transient receptor potential ion channel polycystin 2 (TRPP2) is remarkable, because it controls complex morphogenetic processes such as the establishment of properly shaped epithelial tubules and left-right-asymmetry of organs. The fascinating question of how an ion channel regulates morphogenesis has since captivated the attention of scientists in different disciplines...
September 2017: Cell Calcium
https://www.readbyqxmd.com/read/28805871/asymmetric-motion-of-magnetically-actuated-artificial-cilia
#7
Srinivas Hanasoge, Matthew Ballard, Peter J Hesketh, Alexander Alexeev
Most microorganisms use hair-like cilia with asymmetric beating to perform vital bio-physical processes. In this paper, we demonstrate a novel fabrication method for creating magnetic artificial cilia capable of such a biologically inspired asymmetric beating pattern essential for inducing microfluidic transport at low Reynolds number. The cilia are fabricated using a lithographic process in conjunction with deposition of magnetic nickel-iron permalloy to create flexible filaments that can be manipulated by varying an external magnetic field...
August 14, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28800946/three-tctn-proteins-are-functionally-conserved-in-the-regulation-of-neural-tube-patterning-and-gli3-processing-but-not-ciliogenesis-and-hedgehog-signaling-in-the-mouse
#8
Chengbing Wang, Jia Li, Qing Meng, Baolin Wang
Tctn1, Tctn2, and Tctn3 are membrane proteins that localize at the transition zone of primary cilia. Tctn1 and Tctn2 mutations have been reported in both humans and mice, but Tctn3 mutations have been reported only in humans. It is also not clear whether the three Tctn proteins are functionally conserved with respect to ciliogenesis and Hedgehog (Hh) signaling. In the present study, we report that loss of Tctn3 gene function in mice results in a decrease in ciliogenesis and Hh signaling. Consistent with this, Tctn3 mutant mice exhibit holoprosencephaly and randomized heart looping and lack the floor plate in the neural tube, the phenotypes similar to those of Tctn1 and Tctn2 mutants...
August 8, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28800723/a-clca-regulatory-protein-present-in-the-chemosensory-cilia-of-olfactory-sensory-neurons-induces-a-ca-2-activated-cl-current-when-transfected-into-hek293
#9
Casilda V Mura, Ricardo Delgado, María Graciela Delgado, Diego Restrepo, Juan Bacigalupo
BACKGROUND: CLCA is a family of metalloproteases that regulate Ca(2+)-activated Cl(-) fluxes in epithelial tissues. In HEK293 cells, CLCA1 promotes membrane expression of an endogenous Anoctamin 1 (ANO1, also termed TMEM16A)-dependent Ca(2+)-activated Cl(-) current. Motif architecture similarity with CLCA2, 3 and 4 suggested that they have similar functions. We previously detected the isoform CLCA4L in rat olfactory sensory neurons, where Anoctamin 2 is the principal chemotransduction Ca(2+)-activated Cl(-) channel...
August 11, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28800606/whole-exome-sequencing-as-a-diagnostic-tool-for-patients-with-ciliopathy-like-phenotypes
#10
Sheila Castro-Sánchez, María Álvarez-Satta, Mohamed A Tohamy, Sergi Beltran, Sophia Derdak, Diana Valverde
Ciliopathies are a group of rare disorders characterized by a high genetic and phenotypic variability, which complicates their molecular diagnosis. Hence the need to use the latest powerful approaches to faster identify the genetic defect in these patients. We applied whole exome sequencing to six consanguineous families clinically diagnosed with ciliopathy-like disease, and for which mutations in predominant Bardet-Biedl syndrome (BBS) genes had previously been excluded. Our strategy, based on first applying several filters to ciliary variants and using many of the bioinformatics tools available, allowed us to identify causal mutations in BBS2, ALMS1 and CRB1 genes in four families, thus confirming the molecular diagnosis of ciliopathy...
2017: PloS One
https://www.readbyqxmd.com/read/28800037/primary-cilia-deficiency-induces-intracranial-aneurysm
#11
Min Liu, Jizong Zhao, Qian Zhou, Yong Peng, Yu Zhou, Yugang Jiang
BACKGROUND: Intracranial aneurysm (IA) rupture is life-threatening. However, the mechanisms underlying IA initiation, progression, and rupture remain poorly understood. In the present study, we examined the role of primary cilia in IA development. RESULTS: IA was experimentally induced in mice with elastase and angiotensin II treatment. The number of cells with primary cilia was determined in both IA and peri-IA regions. The role of primary cilia in IA development was assessed through knocking out or manipulating the expression of important components of primary cilia...
August 9, 2017: Shock
https://www.readbyqxmd.com/read/28797733/propagation-of-respiratory-viruses-in-human-airway-epithelia-reveals-persistent-virus-specific-signatures
#12
Manel Essaidi-Laziosi, Francisco Brito, Sacha Benaoudia, Léna Royston, Valeria Cagno, Mélanie Fernandes-Rocha, Isabelle Piuz, Evgeny Zdobnov, Song Huang, Samuel Constant, Marc-Olivier Boldi, Laurent Kaiser, Caroline Tapparel
BACKGROUND: Leading etiologies of acute illnesses, respiratory viruses typically cause self-limited diseases, though severe complications can occur in fragile patients. Rhinoviruses, respiratory enteroviruses, influenza virus, respiratory syncytial viruses and coronaviruses are highly prevalent respiratory pathogens, but due to the lack of reliable animal models, their differential pathogenesis remains poorly characterized. OBJECTIVE: To compare infections by respiratory viruses isolated from clinical specimens using reconstituted human airway epithelia...
August 7, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28797107/jasplakinolide-induces-primary-cilium-formation-through-cell-rounding-and-yap-inactivation
#13
Tomoaki Nagai, Kensaku Mizuno
Primary cilia are non-motile cilia that serve as cellular antennae for sensing and transducing extracellular signals. In general, primary cilia are generated by cell quiescence signals. Recent studies have shown that manipulations to increase actin assembly suppress quiescence-induced ciliogenesis. To further examine the role of actin dynamics in ciliogenesis, we analyzed the effect of jasplakinolide (Jasp), a potent inducer of actin polymerization, on ciliogenesis. Unexpectedly, Jasp treatment induced ciliogenesis in serum-fed cells cultured at low density...
2017: PloS One
https://www.readbyqxmd.com/read/28795648/human-embryonic-stem-cell-derived-cardiomyocytes-self-arrange-with-areas-of-different-subtypes-during-differentiation
#14
Maj Linea Vestergaard, Søren J Grubb, Karen Koefod Rasmussen, Zoe Anderson-Jenkins, Kristina Grunnet-Lauridsen, Kristine Calloe, Christian Clausen, Søren T Christensen, Kjeld Møllgård, Claus Yding Andersen
The derivation of functional cardiomyocytes (CMs) from human embryonic stem cells (hESC) represents a unique way of studying human cardiogenesis, including the development of CM subtypes. In this study, we investigated the development and organization of CMs derived from hESCs (hESC-CMs) and examined how the expression of CM subtypes correspond to human in vivo cardiogenesis. Beating clusters were used to determine cardiac differentiation, which was evaluated by the expression of cardiac genes GATA4 and TNNT2 and subcellular localization of GATA4 and NKX2...
August 10, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28793917/molluscicidal-activity-and-mechanism-of-toxicity-of-a-novel-salicylanilide-ester-derivative-against-biomphalaria-species
#15
Ping He, Weisi Wang, Benjamin Sanogo, Xin Zeng, Xi Sun, Zhiyue Lv, Dongjuan Yuan, Liping Duan, Zhongdao Wu
BACKGROUND: Schistosomiasis mansoni is one of the most important, but often neglected, tropical diseases transmitted by snails of the genus Biomphalaria. Control of the intermediate host snail plays a crucial role in preventing the spread of schistosomiasis. However, there is only one molluscicide, niclosamide, recommended by the World Health Organization. Niclosamide has been used for several decades but is toxic to non-target organisms. Therefore, it is necessary to optimize the scaffold of niclosamide and develop novel molluscicides with enhanced potency and decreased toxicity to non-target organisms...
August 10, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28791777/mutations-in-the-katnb1-gene-cause-left-right-asymmetry-and-heart-defects
#16
M B Furtado, D J Merriner, S Berger, D Rhodes, D Jamsai, M K O'Bryan
BACKGROUND: The microtubule-severing protein complex katanin is composed two subunits, the ATPase subunit, KATNA1, and the non-catalytic regulatory subunit, KATNB1. Recently, the Katnb1 gene has been linked to infertility, regulation of centriole and cilia formation in fish and mammals, as well as neocortical brain development. KATNB1 protein is expressed in germ cells in humans and mouse, mitotic/meiotic spindles and cilia, although the full expression pattern of the Katnb1 gene has not been described...
August 9, 2017: Developmental Dynamics: An Official Publication of the American Association of Anatomists
https://www.readbyqxmd.com/read/28790179/high-prevalence-of-ccdc103-p-his154pro-mutation-causing-primary-ciliary-dyskinesia-disrupts-protein-oligomerisation-and-is-associated-with-normal-diagnostic-investigations
#17
Amelia Shoemark, Eduardo Moya, Robert A Hirst, Mitali P Patel, Evelyn A Robson, Jane Hayward, Juliet Scully, Mahmoud R Fassad, William Lamb, Miriam Schmidts, Mellisa Dixon, Ramila S Patel-King, Andrew V Rogers, Andrew Rutman, Claire L Jackson, Patricia Goggin, Bruna Rubbo, Sarah Ollosson, Siobhán Carr, Woolf Walker, Beryl Adler, Michael R Loebinger, Robert Wilson, Andrew Bush, Hywel Williams, Christopher Boustred, Lucy Jenkins, Eamonn Sheridan, Eddie M K Chung, Christopher M Watson, Thomas Cullup, Jane S Lucas, Priti Kenia, Christopher O'Callaghan, Stephen M King, Claire Hogg, Hannah M Mitchison
RATIONALE: Primary ciliary dyskinesia is a genetically heterogeneous inherited condition characterised by progressive lung disease arising from abnormal cilia function. Approximately half of patients have situs inversus. The estimated prevalence of primary ciliary dyskinesia in the UK South Asian population is 1:2265. Early, accurate diagnosis is key to implementing appropriate management but clinical diagnostic tests can be equivocal. OBJECTIVES: To determine the importance of genetic screening for primary ciliary dyskinesia in a UK South Asian population with a typical clinical phenotype, where standard testing is inconclusive...
August 8, 2017: Thorax
https://www.readbyqxmd.com/read/28783150/katanin-spiral-and-ring-structures-shed-light-on-power-stroke-for-microtubule-severing
#18
Elena Zehr, Agnieszka Szyk, Grzegorz Piszczek, Ewa Szczesna, Xiaobing Zuo, Antonina Roll-Mecak
Microtubule-severing enzymes katanin, spastin and fidgetin are AAA ATPases important for the biogenesis and maintenance of complex microtubule arrays in axons, spindles and cilia. Because of a lack of known 3D structures for these enzymes, their mechanism of action has remained poorly understood. Here we report the X-ray crystal structure of the monomeric AAA katanin module from Caenorhabditis elegans and cryo-EM reconstructions of the hexamer in two conformations. The structures reveal an unexpected asymmetric arrangement of the AAA domains mediated by structural elements unique to microtubule-severing enzymes and critical for their function...
August 7, 2017: Nature Structural & Molecular Biology
https://www.readbyqxmd.com/read/28781053/identification-of-chlamydomonas-central-core-centriolar-proteins-reveals-a-role-for-human-wdr90-in-ciliogenesis
#19
Virginie Hamel, Emmanuelle Steib, Romain Hamelin, Florence Armand, Susanne Borgers, Isabelle Flückiger, Coralie Busso, Natacha Olieric, Carlos Oscar S Sorzano, Michel O Steinmetz, Paul Guichard, Pierre Gönczy
Centrioles are evolutionarily conserved macromolecular structures that are fundamental to form cilia, flagella, and centrosomes. Centrioles are 9-fold symmetrical microtubule-based cylindrical barrels comprising three regions that can be clearly distinguished in the Chlamydomonas reinhardtii organelle: an ∼100-nm-long proximal region harboring a cartwheel; an ∼250-nm-long central core region containing a Y-shaped linker; and an ∼150-nm-long distal region ending at the transitional plate. Despite the discovery of many centriolar components, no protein has been localized specifically to the central core region in Chlamydomonas thus far...
July 29, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28780589/development-of-brain-ventricular-system
#20
REVIEW
Vladimir Korzh
The brain ventricular system (BVS) consists of brain ventricles and channels connecting ventricles filled with cerebrospinal fluid (CSF). The disturbance of CSF flow has been linked to neurodegenerative disease including hydrocephalus, which manifests itself as an abnormal expansion of BVS. This relatively common developmental disorder has been observed in human and domesticated animals and linked to functional deficiency of various cells lineages facing BVS, including the choroid plexus or ependymal cells that generate CSF or the ciliated cells that cilia beating generates CSF flow...
August 5, 2017: Cellular and Molecular Life Sciences: CMLS
keyword
keyword
5312
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"