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https://www.readbyqxmd.com/read/27916052/-hereditary-sensory-and-autonomic-neuropathy-ii-due-to-mutation-in-the-wnk1-gene-in-a-chinese-family
#1
L H Gao, S S Li, W Z Fu
No abstract text is available yet for this article.
December 1, 2016: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/27911840/multistep-regulation-of-autophagy-by-wnk1
#2
Sachith Gallolu Kankanamalage, A-Young Lee, Chonlarat Wichaidit, Andres Lorente-Rodriguez, Akansha M Shah, Steve Stippec, Angelique W Whitehurst, Melanie H Cobb
The with-no-lysine (K) (WNK) kinases are an atypical family of protein kinases that regulate ion transport across cell membranes. Mutations that result in their overexpression cause hypertension-related disorders in humans. Of the four mammalian WNKs, only WNK1 is expressed throughout the body. We report that WNK1 inhibits autophagy, an intracellular degradation pathway implicated in several human diseases. Using small-interfering RNA-mediated WNK1 knockdown, we show autophagosome formation and autophagic flux are accelerated...
November 28, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27798271/wnk-cab39-nkcc1-signaling-increases-the-susceptibility-to-ischemic-brain-damage-in-hypertensive-rats
#3
Mohammad Iqbal H Bhuiyan, Shanshan Song, Hui Yuan, Gulnaz Begum, Julia Kofler, Kristopher T Kahle, Sung-Sen Yang, Shih-Hua Lin, Seth L Alper, Arohan R Subramanya, Dandan Sun
With-no-lysine kinase (WNK) and Na(+)-K(+)-2Cl(-) cotransporter 1 (NKCC1) are involved in the pathogenesis of hypertension. In this study, we investigated the WNK-NKCC1 signaling pathway in spontaneously hypertensive rats (SHR) and their associated susceptibility to stroke injury. Basal NKCC1 protein levels were higher in SHR than in normotensive Wistar Kyoto (WKY) rat brains. After inducing ischemic stroke, adult male WKY and SHR received either saline or NKCC1 inhibitor bumetanide (10 mg/kg/day, i.p.) starting at 3-h post-reperfusion...
October 26, 2016: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/27780982/a-patient-with-pseudohypoaldosteronism-type-ii-complicated-by-congenital-hypopituitarism-carrying-a-klhl3-mutation
#4
Marie Mitani, Munehiro Furuichi, Satoshi Narumi, Tomonobu Hasegawa, Motoko Chiga, Shinichi Uchida, Seiji Sato
Pseudohypoaldosteronism type II (PHA II) is a renal tubular disease that causes hyperkalemia, hypertension, and metabolic acidosis. Mutations in four genes (WNK4, WNK1, KLHL3, and CUL3) are known to cause PHA II. We report a patient with PHA II carrying a KLHL3 mutation, who also had congenital hypopituitarism. The patient, a 3-yr-old boy, experienced loss of consciousness at age 10 mo. He exhibited growth failure, hypertension, hyperkalemia, and metabolic acidosis. We diagnosed him as having PHA II because he had low plasma renin activity with normal plasma aldosterone level and a low transtubular potassium gradient...
October 2016: Clinical Pediatric Endocrinology: Case Reports and Clinical Investigations: Official Journal of the Japanese Society for Pediatric Endocrinology
https://www.readbyqxmd.com/read/27765018/arthropathy-related-pain-in-a-patient-with-congenital-impairment-of-pain-sensation-due-to-hereditary-sensory-and-autonomic-neuropathy-type-ii-with-a-rare-mutation-in-the-wnk1-hsn2-gene-a-case-report
#5
Keiko Yamada, Junhui Yuan, Tomoo Mano, Hiroshi Takashima, Masahiko Shibata
BACKGROUND: Hereditary sensory and autonomic neuropathy (HSAN) type II with WNK1/HSN2 gene mutation is a rare disease characterized by early-onset demyelination sensory loss and skin ulceration. To the best of our knowledge, no cases of an autonomic disorder have been reported clearly in a patient with WNK/HSN2 gene mutation and only one case of a Japanese patient with the WNK/HSN2 gene mutation of HSAN type II was previously reported. CASE PRESENTATION: Here we describe a 54-year-old woman who had an early childhood onset of insensitivity to pain; superficial, vibration, and proprioception sensation disturbances; and several symptoms of autonomic failure (e...
October 21, 2016: BMC Neurology
https://www.readbyqxmd.com/read/27754152/os-29-04-sympathetic-nervous-system-regulation-of-the-renal-ncc-and-blood-pressure-during-high-dietary-salt-intake
#6
Richard Wainford, Kathryn Walsh
OBJECTIVE: These studies tested the hypothesis that the SNS release of norepinephrine modulates NCC activity via a WNK1 mechanism to contribute to the pathophysiology of salt-sensitive hypertension in rats. DESIGN AND METHOD: Male Sprague-Dawley (SD) rats receiving a continuous s.c. saline or NE (600 ng/min) infusion or naïve Dahl Salt-Resistant (DSR) and Dahl Salt-Sensitive (DSS) rats were fed a 0.6% (NS) or 8% NaCl (HS) diet for 14 or 21 days respectively (N = 6/group)...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27712055/discovery-and-characterization-of-allosteric-wnk-kinase-inhibitors
#7
Ken Yamada, Ji-Hu Zhang, Xiaoling Xie, Juergen Reinhardt, Amy Qiongshu Xie, Daniel LaSala, Darcy Kohls, David Yowe, Debra Burdick, Hajime Yoshisue, Hiromichi Wakai, Isabel Schmidt, Jason Gunawan, Kayo Yasoshima, Q Kimberley Yue, Mitsunori Kato, Muneto Mogi, Neeraja Idamakanti, Natasha Kreder, Peter Drueckes, Pramod Pandey, Toshio Kawanami, Waanjeng Huang, Yukiko I Yagi, Zhan Deng, Hyi-Man Park
Protein kinases are known for their highly conserved adenosine triphosphate (ATP)-binding site, rendering the discovery of selective inhibitors a major challenge. In theory, allosteric inhibitors can achieve high selectivity by targeting less conserved regions of the kinases, often with an added benefit of retaining efficacy under high physiological ATP concentration. Although often overlooked in favor of ATP-site directed approaches, performing a screen at high ATP concentration and/or stringent hit triaging with high ATP concentration offer conceptually simple methods of identifying allosteric inhibitors...
October 7, 2016: ACS Chemical Biology
https://www.readbyqxmd.com/read/27671536/a-first-line-diagnostic-assay-for-limb-girdle-muscular-dystrophy-and-other-myopathies
#8
Dorota Monies, Hindi N Alhindi, Mohamed A Almuhaizea, Mohamed Abouelhoda, Anas M Alazami, Ewa Goljan, Banan Alyounes, Dyala Jaroudi, Abdulelah AlIssa, Khalid Alabdulrahman, Shazia Subhani, Mohamed El-Kalioby, Tariq Faquih, Salma M Wakil, Nada A Altassan, Brian F Meyer, Saeed Bohlega
BACKGROUND: Fifty random genetically unstudied families (limb-girdle muscular dystrophy (LGMD)/myopathy) were screened with a gene panel incorporating 759 OMIM genes associated with neurological disorders. Average coverage of the CDS and 10 bp flanking regions of genes was 99 %. All families were referred to the Neurosciences Clinic of King Faisal Specialist Hospital and Research Centre, Saudi Arabia. Patients presented with muscle weakness affecting the pelvic and shoulder girdle. Muscle biopsy in all cases showed dystrophic or myopathic changes...
September 27, 2016: Human Genomics
https://www.readbyqxmd.com/read/27643082/os-29-04-sympathetic-nervous-system-regulation-of-the-renal-ncc-and-blood-pressure-during-high-dietary-salt-intake
#9
Richard Wainford, Kathryn Walsh
OBJECTIVE: These studies tested the hypothesis that the SNS release of norepinephrine modulates NCC activity via a WNK1 mechanism to contribute to the pathophysiology of salt-sensitive hypertension in rats. DESIGN AND METHOD: Male Sprague-Dawley (SD) rats receiving a continuous s.c. saline or NE (600 ng/min) infusion or naïve Dahl Salt-Resistant (DSR) and Dahl Salt-Sensitive (DSS) rats were fed a 0.6% (NS) or 8% NaCl (HS) diet for 14 or 21 days respectively (N = 6/group)...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27508683/-op-lb01-10-the-skipping-of-exon-9-in-cullin-3-causes-a-severe-form-of-familial-hyperkalemic-hypertension-in-mice
#10
C Rafael, W Abdel Khalek, I Kouranti, E Clauser, X Jeunemaitre, J Hadchouel
OBJECTIVE: Familial Hyperkalemic Hypertension (FHHt) is caused by mutations in WNK1, WNK4, KLHL3 or CUL3 (cullin-3). Patients with CUL3 mutation display a more severe phenotype. The mechanisms associated with this severity remain unclear. DESIGN AND METHOD: All CUL3 mutations result in the skipping of exon 9. We have generated a mouse model of "Cul3-FHHt" by deleting Cul3 exon 9. RESULTS: RT-PCR proved that the exon skipping occurred as expected in the kidney of Cul3+/d9 mice...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27469332/clinicopathological-effects-of-protein-phosphatase-2-regulatory-subunit-a-alpha-mutations-in-gastrointestinal-stromal-tumors
#11
Midori Toda-Ishii, Keisuke Akaike, Yoshiyuki Suehara, Kenta Mukaihara, Daisuke Kubota, Shinji Kohsaka, Taketo Okubo, Keiko Mitani, Kaoru Mogushi, Tatsuya Takagi, Kazuo Kaneko, Takashi Yao, Tsuyoshi Saito
Recently, several studies have reported that dysfunctions in protein phosphatase 2A (PP2A) caused by alterations in protein phosphatase 2 regulatory subunit A, alpha (PPP2R1A) are responsible for tumorigenesis and tumor progression in several types of cancers. The impact of PPP2R1A mutations remains unknown in gastrointestinal stromal tumors (GISTs), although mutations in KIT and PDGFRA, which result in constitutive activation of the receptor tyrosine kinase pathway, are important in GIST tumorigenesis. In this study, we performed mutation analysis of PPP2R1A to examine the frequency of PPP2R1A mutations and their clinicopathological correlation in 94 GIST cases...
July 29, 2016: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/27456605/genetic-architecture-dissection-by-genome-wide-association-analysis-reveals-avian-eggshell-ultrastructure-traits
#12
Zhongyi Duan, Congjiao Sun, ManMan Shen, Kehua Wang, Ning Yang, Jiangxia Zheng, Guiyun Xu
The ultrastructure of an eggshell is considered the major determinant of eggshell quality, which has biological and economic significance for the avian and poultry industries. However, the interrelationships and genome-wide architecture of eggshell ultrastructure remain to be elucidated. Herein, we measured eggshell thickness (EST), effective layer thickness (ET), mammillary layer thickness (MT), and mammillary density (MD) and conducted genome-wide association studies in 927 F2 hens. The SNP-based heritabilities of eggshell ultrastructure traits were estimated to be 0...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27453460/vav3-is-linked-to-poor-prognosis-of-pancreatic-cancers-and-promotes-the-motility-and-invasiveness-of-pancreatic-cancer-cells
#13
Makiko Tsuboi, Keisuke Taniuchi, Mutsuo Furihata, Seiji Naganuma, Masashi Kimura, Ryohei Watanabe, Takahiro Shimizu, Motoaki Saito, Ken Dabanaka, Kazuhiro Hanazaki, Toshiji Saibara
BACKGROUND/OBJECTIVES: The aim of this study was to investigate the role of the guanine nucleotide exchange factor Vav3 in the motility and invasiveness of pancreatic ductal adenocarcinoma (PDAC) cells. METHODS: Immunohistochemistry was used to determine whether high Vav3 expression in human PDAC tissues is correlated with poor prognosis. Immunocytochemistry was used to determine the association and intracellular distribution of Vav3, Rac1 and Akt in PDAC cells...
September 2016: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/27447551/treatment-with-an-slc12a1-antagonist-inhibits-tumorigenesis-in-a-subset-of-hepatocellular-carcinomas
#14
Fei Teng, Meng Guo, Fang Liu, Ce Wang, Jiayong Dong, Lei Zhang, You Zou, Rui Chen, Keyan Sun, Hong Fu, Zhiren Fu, Wenyuan Guo, Guoshan Ding
A central aim in cancer research is to identify genes with altered expression patterns in tumor specimens and their potential role in tumorigenesis. Most types of tumors, including hepatocellular carcinoma (HCC), are heterogeneous in terms of genotype and phenotype. Thus, traditional analytical methods like the t-test fail to identify all oncogenes from expression profiles. In this study, we performed a meta-Cancer Outlier Profile Analysis (meta-COPA) across six microarray datasets for HCC from the GEO database...
July 18, 2016: Oncotarget
https://www.readbyqxmd.com/read/27400149/wnk1-kinase-balances-t-cell-adhesion-versus-migration-in-vivo
#15
Robert Köchl, Flavian Thelen, Lesley Vanes, Tiago F Brazão, Kathryn Fountain, Jian Xie, Chou-Long Huang, Ruth Lyck, Jens V Stein, Victor L J Tybulewicz
Adhesion and migration of T cells are controlled by chemokines and by adhesion molecules, especially integrins, and have critical roles in the normal physiological function of T lymphocytes. Using an RNA-mediated interference screen, we identified the WNK1 kinase as a regulator of both integrin-mediated adhesion and T cell migration. We found that WNK1 is a negative regulator of integrin-mediated adhesion, whereas it acts as a positive regulator of migration via the kinases OXSR1 and STK39 and the ion co-transporter SLC12A2...
September 2016: Nature Immunology
https://www.readbyqxmd.com/read/27261090/mitogen-activated-protein-kinases-as-key-players-in-osmotic-stress-signaling
#16
REVIEW
Xiangyu Zhou, Isao Naguro, Hidenori Ichijo, Kengo Watanabe
BACKGROUND: Osmotic stress arises from the difference between intracellular and extracellular osmolality. It induces cell swelling or shrinkage as a consequence of water influx or efflux, which threatens cellular activities. Mitogen-activated protein kinases (MAPKs) play central roles in signaling pathways in osmotic stress responses, including the regulation of intracellular levels of inorganic ions and organic osmolytes. SCOPE OF REVIEW: The present review summarizes the cellular osmotic stress response and the function and regulation of the vertebrate MAPK signaling pathways involved...
September 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27170636/with-no-lysine-l-wnk1-isoforms-are-negative-regulators-of-the-k-cl-cotransporters
#17
Adriana Mercado, Paola de Los Heros, Zesergio Melo, María Chávez-Canales, Adrián R Murillo-de-Ozores, Erika Moreno, Silvana Bazúa-Valenti, Norma Vázquez, Juliette Hadchouel, Gerardo Gamba
The K(+)-Cl(-) cotransporters (KCC1-KCC4) encompass a branch of the SLC12 family of electroneutral cation-coupled chloride cotransporters that translocate ions out of the cell to regulate various factors, including cell volume and intracellular chloride concentration, among others. L-WNK1 is an ubiquitously expressed kinase that is activated in response to osmotic stress and intracellular chloride depletion, and it is implicated in two distinct hereditary syndromes: the renal disease pseudohypoaldosteronism type II (PHAII) and the neurological disease hereditary sensory neuropathy 2 (HSN2)...
July 1, 2016: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/27165781/the-transcription-factor-foxf1-promotes-prostate-cancer-by-stimulating-the-mitogen-activated-protein-kinase-erk5
#18
Logan Fulford, David Milewski, Vladimir Ustiyan, Navin Ravishankar, Yuqi Cai, Tien Le, Sreeharsha Masineni, Susan Kasper, Bruce Aronow, Vladimir V Kalinichenko, Tanya V Kalin
Forkhead box F1 (FOXF1) is a stromal transcription factor that is not expressed in epithelial cells of normal prostate tissue. The role of FOXF1 in cancer is conflicting; its loss in some cancers suggests a tumor suppressive function, but its abundance in others is associated with protumorigenic and metastatic traits. Extracellular signal-regulated kinase 5 (ERK5) is associated with advanced-stage prostate adenocarcinoma (PCa) in patients. We detected a population of FOXF1-positive tumor cells in aggressive mouse and human PCa...
2016: Science Signaling
https://www.readbyqxmd.com/read/27131446/-wnk-ing-at-death-with-no-lysine-wnk-kinases-in-neuropathies-and-neuronal-survival
#19
REVIEW
Bor Luen Tang
Members of With-no-lysine (WNK) family of serine-threonine kinase are key regulators of chloride ion transport in diverse cell types, controlling the activity and the surface expression of cation-chloride (Na(+)/K(+)-Cl(-)) co-transporters. Mutations in WNK1 and WNK4 are linked to a hereditary form of hypertension, and WNKs have been extensively investigated pertaining to their roles in renal epithelial ion homeostasis. However, some members of the WNK family and their splice isoforms are also expressed in the mammalian brain, and have been implicated in aspects of hereditary neuropathy as well as neuronal and glial survival...
July 2016: Brain Research Bulletin
https://www.readbyqxmd.com/read/27082544/stk39-and-wnk1-are-potential-hypertension-susceptibility-genes-in-the-belhypgen-cohort
#20
MULTICENTER STUDY
Alexandre Persu, Lucie Evenepoel, Yu Jin, Antonella Mendola, Gérard Ngueta, Wen-Yi Yang, Damien Gruson, Sandrine Horman, Jan A Staessen, Miikka Vikkula
The serine/threonine kinase With-No-Lysine (K) Kinase 1 (WNK1) activates the thiazide-sensitive Na(+)/Cl(-) cotransporter through phosphorylation of STE20/SPS1-related proline/alanine-rich kinase, another serine/threonine kinase encoded by STK39. The aim of this study was to look for association between WNK1 and STK39 gene variants, and blood pressure (BP) and hypertension. Seven hundred seventy-nine Caucasian hypertensive patients (HYP) recruited in 6 academic centers from Belgium, and 906 normotensive (NT) controls were genotyped for 5 single nucleotide polymorphisms-rs3754777, rs6749447, rs35929607 (STK39), rs1468326, and rs765250 (WNK1)-using the Snapshot method...
April 2016: Medicine (Baltimore)
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