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https://www.readbyqxmd.com/read/29776962/shp-1-acts-as-a-tumor-suppressor-in-hepatocarcinogenesis-and-hcc-progression
#1
Liang-Zhi Wen, Kai Ding, Ze-Rui Wang, Chen-Hong Ding, Shu-Juan Lei, Jin-Pei Liu, Chuan Yin, Ping-Fang Hu, Jin Ding, Wan-Sheng Chen, Xin Zhang, Wei-Fen Xie
Src homology region 2 (SH2) domain-containing phosphatase 1 (SHP-1, also known as PTPN6), is a nonreceptor protein tyrosine phosphatase that acts as a negative regulator of inflammation. Emerging evidence indicates that SHP-1 plays a role in inhibiting the progression of hepatocellular carcinoma (HCC). However, the role of SHP-1 in hepatocarcinogenesis remains unknown. Here we find that levels of SHP-1 are significantly downregulated in human HCC tissues compared with those in noncancerous tissues (P < 0...
May 18, 2018: Cancer Research
https://www.readbyqxmd.com/read/29762691/diagnostic-accuracy-of-post-acth-challenge-salivary-cortisol-concentrations-for-identifying-horses-with-equine-glandular-gastric-disease
#2
Fay J Sauer, Rupert M Bruckmaier, Alessandra Ramseyer, Beatriz Vidondo, Milena D Scheidegger, Vinzenz Gerber
The aims of this study were to better characterize the adrenal response to i.v. adrenocorticotropic hormone (ACTH) in horses with and without gastric disease and to validate and simplify the ACTH stimulation test by determining the diagnostic accuracy of six consecutive sampling time points after ACTH administration for equine glandular gastric disease (EGGD) and equine squamous gastric disease (ESGD). Twenty-six endurance and eventing horses without clinical disease [Sport Horse Population (SHP)] and an independent population of 62 horses [General Population (GP)] were grouped by gastroscopic findings (no/mild vs...
May 12, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29730897/the-effect-of-autoimmune-blistering-diseases-on-work-productivity
#3
E Q Wang, M Radjenovic, M A Castrillón, G Feng, D F Murrell
BACKGROUND: Autoimmune blistering diseases (AIBD) is known to negatively impact upon quality of life (QoL), however there is a paucity of research on the effect of AIBD on work productivity. AIBD can be quite disfiguring in terms of a patient's appearance due to its blistering nature. OBJECTIVE: To determine the impact of AIBD on work productivity and to determine whether patients are stigmatized at work due to their appearance. METHODS: Sixty one patients with AIBD completed the Work Productivity and Activity Impairment Questionnaire-Specific Health Problem (WPAIQ-SHP), the Dermatology Life Quality Index (DLQI), the Autoimmune Bullous Disease Quality of Life (ABQOL), and the Treatment of Autoimmune Bullous Disease Quality of Life questionnaires (TABQOL)...
May 6, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29718219/xenobiotic-nuclear-receptor-signaling-determines-molecular-pathogenesis-of-progressive-familial-intrahepatic-cholestasis
#4
Kang Ho Kim, Jong Min Choi, Feng Li, Armando Arizpe, Clavia Ruth Wooton-Kee, Sayeepriyadarshini Anakk, Sung Yun Jung, Milton J Finegold, David D Moore
Progressive familial intrahepatic cholestasis (PFIC) is a genetically heterogeneous disorder of bile flow disruption due to abnormal canalicular transport or impaired bile acid (BA) metabolism, causing excess BA accumulation and liver failure. We reported an intrahepatic cholestasis mouse model based on loss of function of both farnesoid X receptor (FXR; NR1H4) and small heterodimer partner (SHP, NR0B2) (DKO), which has strong similarities to human PFIC type 5. Here, we compare the pathogenesis of the DKO liver to that of another intrahepatic cholestasis model, Bsep-/-, which represents human PFIC2...
April 26, 2018: Endocrinology
https://www.readbyqxmd.com/read/29686372/rgg-shp-regulators-are-important-for-pneumococcal-colonization-and-invasion-through-their-effect-on-mannose-utilization-and-capsule-synthesis
#5
Xiangyun Zhi, Iman Tajer Abdullah, Ozcan Gazioglu, Irfan Manzoor, Sulman Shafeeq, Oscar P Kuipers, N Luisa Hiller, Peter W Andrew, Hasan Yesilkaya
Microbes communicate with each other by using quorum sensing (QS) systems and modulate their collective 'behavior' for in-host colonization and virulence, biofilm formation, and environmental adaptation. The recent increase in genome data availability reveals the presence of several putative QS sensing circuits in microbial pathogens, but many of these have not been functionally characterized yet, despite their possible utility as drug targets. To increase the repertoire of functionally characterized QS systems in bacteria, we studied Rgg144/Shp144 and Rgg939/Shp939, two putative QS systems in the important human pathogen Streptococcus pneumoniae...
April 23, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29681901/putting-on-the-brakes-regulatory-kinases-and-phosphatases-maintaining-b-cell-anergy
#6
REVIEW
S Elizabeth Franks, John C Cambier
B cell antigen receptor (BCR) signaling is a tightly regulated process governed by both positive and negative mediators/regulators to ensure appropriate responses to exogenous and autologous antigens. Upon naïve B cell recognition of antigen CD79 [the immunoreceptor tyrosine-based activation motif (ITAM)-containing signaling subunit of the BCR] is phosphorylated and recruits Src and Syk family kinases that then phosphorylate proximal intermediaries linked to downstream activating signaling circuitry. This plasma membrane localized signalosome activates PI3K leading to generation of PIP3 critical for membrane localization and activation of plecktrin homology domain-containing effectors...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29669741/shp-1-regulates-hematopoietic-stem-cell-quiescence-by-coordinating-tgf-%C3%AE-signaling
#7
Linjia Jiang, Xue Han, Jin Wang, Chen Wang, Xiaoqiang Sun, Jiayi Xie, Guojin Wu, Hiep Phan, Zhenguo Liu, ChengCheng Zhang, Meng Zhao, Xunlei Kang
Cell cycle quiescence is critical for hematopoietic stem cell (HSC) maintenance. TGF-β signaling in bone marrow niche has been identified in regulating HSC quiescence; however, the intrinsic regulatory mechanisms remain unclear. This study reports that Shp-1 knockout HSCs have attenuated quiescence and impaired long-term self-renewal. SHP-1-activated HSCs are surrounded by megakaryocytes, which regulate HSC quiescence by producing TGF-β1. Mechanistically, SHP-1 interacts with the immunoreceptor tyrosine-based inhibition motif on TGF-β receptor 1 and is critical for TGF-β signaling activation in HSCs...
April 18, 2018: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/29666185/hepatocyte-nuclear-receptor-shp-suppresses-inflammation-and-fibrosis-in-a-mouse-model-of-nonalcoholic-steatohepatitis
#8
An Zou, Nancy Magee, Fengyan Deng, Sarah Lehn, Cuncong Zhong, Yuxia Zhang
Nonalcoholic fatty liver disease (NAFLD) is a burgeoning health problem worldwide, ranging from nonalcoholic fatty liver (NAFL, steatosis without hepatocellular injury) to the more aggressive nonalcoholic steatohepatitis (NASH, steatosis with ballooning, inflammation, or fibrosis). Although many studies have greatly contributed to the elucidation of NAFLD pathogenesis, the disease progression from NAFL to NASH still remains incompletely understood. Nuclear receptor small heterodimer partner (Nr0b2, SHP) is a transcriptional regulator critical for the regulation of bile acid, glucose, and lipid metabolism...
April 17, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29665905/-relationship-between-dnmt1-and-methylation-of-shp-1-promoter-2-in-k562-cells
#9
Xue-Dong Liu, Xiao Liu, Xiu-Fen Guo, Jian-Min Luo, Ying-Hua Li
OBJECTIVE: To investigate the relationship of DNA methyltransferase 1 ( DNMT1 ) with hematopoietic cell phosphatase (SHP-1) gene expression and promoter 2 methylation status in cell line K562. METHODS: The promoter sequence of SHP-1 gene promoter 2 in NCBI database was analyzed, the K562 cells were transfected with the lentiviral plasmids-the specified retroviral vector psiHIV-mU6-shDNMT1 and psiHIV-mU6-mcherryFP-control. The methylation status of SHP-1 gene promoter 2 in K562 cells was detected by methylation-specific polymerase chain reaction (MSP) and bisulfite-modified sequencing (BSP)...
April 2018: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/29663933/small-heterodimer-partner-negatively-regulates-tlr4-signaling-pathway-of-titanium-particles-induced-osteolysis-in-mice
#10
Chi Zhang, Changchuan Li, Shixun Li, Ling Qin, Manli Luo, Guangtao Fu, Junxiong Qiu, Peng Peng, Weibin Cai, Yue Ding
Arthroplasty has been widely performed worldwide. However, peri-prosthetic osteolysis and aseptic loosening induced by macrophages activated by wear particles still remain a predominant cause of long term prosthetic failure. Our study aimed to identify the role of small heterodimer partner (SHP) in secretion of proinflammatory cytokines by macrophages through Toll-like Recepters (TLR)s signaling pathway activated by wear particles both in vivo and in vitro. The effect of SHP on activation of TLR4 pathway and secretion of cytokines was observed in RAW264...
March 1, 2018: Journal of Biomedical Nanotechnology
https://www.readbyqxmd.com/read/29629899/ask1-2-signaling-promotes-inflammation-in-a-mouse-model-of-neutrophilic-dermatosis
#11
Sarang Tartey, Prajwal Gurung, Tejasvi Krishna Dasari, Amanda Burton, Thirumala-Devi Kanneganti
Mice homozygous for the Tyr208Asn amino acid substitution in the carboxy terminus of Src homology region 2 (SH2) domain-containing phosphatase 1 (SHP-1) (referred to as Ptpn6spin mice) spontaneously develop a severe inflammatory disease resembling neutrophilic dermatosis in humans. Disease in Ptpn6spin mice is characterized by persistent footpad swelling and suppurative inflammation. Recently, in addition to IL-1α and IL-1R signaling, we demonstrated a pivotal role for several kinases such as SYK, RIPK1, and TAK1 in promoting inflammatory disease in Ptpn6spin mice...
April 9, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29617671/shp-2-is-dispensable-for-establishing-t-cell-exhaustion-and-for-pd-1-signaling-in-vivo
#12
Giorgia Rota, Charlène Niogret, Anh Thu Dang, Cristina Ramon Barros, Nicolas Pierre Fonta, Francesca Alfei, Leonor Morgado, Dietmar Zehn, Walter Birchmeier, Eric Vivier, Greta Guarda
In chronic infection and cancer, T cells acquire a dysfunctional state characterized by the expression of inhibitory receptors. In vitro studies implicated the phosphatase Shp-2 downstream of these receptors, including PD-1. However, whether Shp-2 is responsible in vivo for such dysfunctional responses remains elusive. To address this, we generated T cell-specific Shp-2-deficient mice. These mice did not show differences in controlling chronic viral infections. In this context, Shp-2-deleted CD8+ T lymphocytes expanded moderately better but were less polyfunctional than control cells...
April 3, 2018: Cell Reports
https://www.readbyqxmd.com/read/29613839/speech-in-5-year-olds-with-cleft-palate-with-or-without-cleft-lip-treated-with-primary-palatal-surgery-with-muscle-reconstruction-according-to-sommerlad
#13
Kristina Klintö, Evelina Falk, Sara Wilhelmsson, Björn Schönmeyr, Magnus Becker
OBJECTIVE: To evaluate speech in 5-year-olds with cleft palate with or without cleft lip (CP±L) treated with primary palatal surgery in 1 stage with muscle reconstruction according to Sommerlad at about 12 months of age. DESIGN: Retrospective study. SETTING: Primary care university hospital. PARTICIPANTS: Eight 5-year-olds with cleft soft palate (SP), 22 with cleft soft/hard palate (SHP), 33 with unilateral cleft lip and palate, and 17 with bilateral CLP (BCLP)...
January 1, 2018: Cleft Palate-craniofacial Journal
https://www.readbyqxmd.com/read/29600940/the-burden-of-systemic-juvenile-idiopathic-arthritis-for-patients-and-caregivers-an-international-survey-and-retrospective-chart-review
#14
Susan Shenoi, Gerd Horneff, Michal Cidon, Athimalaipet V Ramanan, Yukiko Kimura, Pierre Quartier, Ivan Foeldvari, Andrew Zeft, Kathleen G Lomax, Jill Gregson, Tineke Abma, Sarah Campbell-Hill, Jeffrey Weiss, Dony Patel, Nina Marinsek, Nico Wulffraat
OBJECTIVES: To investigate the burden of systemic juvenile idiopathic arthritis (SJIA) on health-related quality of life (HRQOL) and resource use of patients and caregivers (families) on biologic therapy. METHODS: This international study assessed SJIA burden in patients on biologics, using a caregiver questionnaire and retrospective chart review. Validated measures included: Child Health Questionnaire Parent-Form 50 (CHQ-PF50), 36-Item Short-Form Health Survey (SF-36v2) and Work Productivity and Activity Impairment questionnaire: Specific Health Problem (WPAI:SHP)...
March 21, 2018: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/29576846/proscillaridin-a-promotes-oxidative-stress-and-er-stress-inhibits-stat3-activation-and-induces-apoptosis-in-a549-lung-adenocarcinoma-cells
#15
Amara Maryam, Tahir Mehmood, Qiulong Yan, Yongming Li, Muhammad Khan, Tonghui Ma
Cardiac glycosides are natural compounds used for the treatment of cardiovascular disorders. Although originally prescribed for cardiovascular diseases, more recently, they have been rediscovered for their potential use in the treatment of cancer. Proscillaridin A (PSD-A), a cardiac glycoside component of Urginea maritima , has been reported to exhibit anticancer activity. However, the cellular targets and anticancer mechanism of PSD-A in various cancers including lung cancer remain largely unexplored. In the present study, we found that PSD-A inhibits growth and induces apoptosis in A549 lung adenocarcinoma cells...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29572158/a-phase-i-ii-trial-of-the-combination-of-azacitidine-and-gemtuzumab-ozogamicin-for-treatment-of-relapsed-acute-myeloid-leukemia
#16
Bruno C Medeiros, Tiffany N Tanaka, Larisa Balaian, Asad Bashey, Amy Guzdar, Hongying Li, Karen Messer, Edward D Ball
INTRODUCTION: Treatment with hypomethylating agent therapy might enhance anti-CD33 monoclonal antibody-mediated cytotoxicity against acute myeloid leukemia (AML) blasts through epigenetic effects on Syk and SHP-1 expression. PATIENTS AND METHODS: In the present phase I/II study, we treated patients with relapsed or refractory AML with azacitidine, followed by 2 doses of gemtuzumab ozogamicin (GO) at 6 mg/m2 , the Food and Drug Administration-approved dose and schedule at study initiation...
March 2, 2018: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/29562956/trim14-promotes-breast-cancer-cell-proliferation-by-inhibiting-apoptosis
#17
Gaowu Hu, Wei Pen, Ming Wang
Tripartite motif-containing 14 (TRIM14) abnormally expressed in several human cancers. However, the function and expression of TRIM14 in human breast cancer were still largely unknown. To understand biological function of TRIM14 in breast cancer, we measured expression level of TRIM14. Cell proliferation and cell apoptosis were measured after TRIM14 overexpression or knockdown. The upregulation of TRIM14 was found in human breast cancer specimens and cell lines. Deduction of TRIM14 inhibited cell proliferation but increased cell apoptosis in BT474 and MDA-MB-231 cell lines...
March 21, 2018: Oncology Research
https://www.readbyqxmd.com/read/29562494/aberrant-expression-of-mir-141-and-nuclear-receptor-small-heterodimer-partner-in-clinical-samples-of-prostate-cancer
#18
Maryam Khorasani, Ladan Teimoori-Toolabi, Taghi Naserpour Farivar, Mojgan Asgari, Maryam Abolhasani, Hossein Shahrokh, Ali Afkar, Elham Kalantari, Amir Peymani, Reza Mahdian
BACKGROUND: Prostate cancer (PCa) is the second most common cancer in men worldwide. Currently, prostate-specific antigen (PSA) test and digital rectal exam are the main screening tests used for PCa diagnosis. However, due to the low specificity of these tests, new alternative biomarkers such as deregulated RNAs and microRNAs have been implemented. OBJECTIVES: Aberrant expression of small heterodimer partner gene (SHP, NR0B2) and mir-141 are reported in various cancers...
February 28, 2018: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/29555550/differential-expression-and-functional-diversification-of-diverse-immunoglobulin-domain-containing-protein-dicp-family-in-three-gynogenetic-clones-of-gibel-carp
#19
Fan-Xiang Gao, Wei-Jia Lu, Yang Wang, Qi-Ya Zhang, Yi-Bing Zhang, Cheng-Yan Mou, Zhi Li, Xiao-Juan Zhang, Chao-Wei Liu, Li Zhou, Jian-Fang Gui
Diverse immunoglobulin (Ig) domain-containing protein (DICP) family is a novel bony fish-specific multi-gene family encoding diversified immune receptors. However, their function and the implication of binding partners remain unknown. In this study, we first identified 28 DICPs from three gibel carp gynogenetic clones and revealed their high variability and clone-specific feature. After crucian carp herpesvirus (CaHV) infection, these DICPs were significantly upregulated in head kidney, kidney and spleen. The up-regulation folds in clone A+ , F and H were related to the susceptibility to CaHV, progressively increasing from resistant clone to susceptible clone...
March 16, 2018: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/29552589/detection-of-intracellular-reduced-catalytically-active-shp-1-and-analyses-of-catalytically-inactive-shp-1-after-oxidation-by-pervanadate-or-h-2-o-2
#20
Seeyoung Choi, Paul E Love
Oxidative inactivation of cysteine-dependent Protein Tyrosine Phosphatases (PTPs) by cellular reactive oxygen species (ROS) plays a critical role in regulating signal transduction in multiple cell types. The phosphatase activity of most PTPs depends upon a 'signature' cysteine residue within the catalytic domain that is maintained in the de-protonated state at physiological pH rendering it susceptible to ROS-mediated oxidation. Direct and indirect techniques for detection of PTP oxidation have been developed (Karisch and Neel, 2013)...
January 5, 2018: Bio-protocol
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