نتایج جستجو برای: receptor 22 ptpn22

تعداد نتایج: 790456  

2017
Jianming Li Deliang Lei Yan Wang Fang Li Meihua Bao Ju xiang Liang Tang Beisha Tang

Background: Neuropsychiatric manifestations pose diagnostic and therapeutic challenges in systemic lupus erythematosus (SLE). The aim of this study was to investigate whether the PTPN22, IRF5 and TYK2 polymorphisms are involved in the development of NPSLE. Material and methods: The association was investigated between three immune-associated genes (PTPN22, IRF5 and TYK2) polymorphisms and SLE p...

Journal: :BMC Proceedings 2007
France Gagnon David Hajage Sabine Plancoulaine Sophie Tezenas du Montcel

In the present paper, we used the North American Rheumatoid Arthritis Consortium data provided for Genetic Analysis Workshop 15 Problem 2 to: 1) estimate the penetrances of PTPN22 and HLA-DRB1 and, 2) test the selected model of PTPN22 conditional on the rheumatoid factor status. To achieve these aims, we used the marker association segregation chi-square method, fitting simultaneously both geno...

Journal: :International Journal of Molecular Sciences 2023

The protein tyrosine phosphatase PTPN22 inhibits T cell activation by dephosphorylating some essential proteins in the receptor (TCR)-mediated signaling pathway, such as lymphocyte-specific kinase (Lck), Src family kinases Fyn, and phosphorylation levels of Zeta-chain-associated kinase-70 (ZAP70). For first time, we have successfully produced CS transgenic mice which activity is suppressed. Not...

Journal: :Arthritis Research & Therapy 2006
Matthias Pierer Sylke Kaltenhäuser Sybille Arnold Matthias Wahle Christoph Baerwald Holm Häntzschel Ulf Wagner

The functional single-nucleotide polymorphism (SNP) of the gene PTPN22 is a susceptibility locus for rheumatoid arthritis (RA). The study presented here describes the association of the PTPN22 1858T allele with RA in a German patient cohort; 390 patients with RA and 349 controls were enrolled in the study. For 123 patients, clinical and radiographic documentation over 6 years was available from...

Journal: :American journal of human genetics 2005
Victoria E H Carlton Xiaolan Hu Anand P Chokkalingam Steven J Schrodi Rhonda Brandon Heather C Alexander Monica Chang Joseph J Catanese Diane U Leong Kristin G Ardlie Daniel L Kastner Michael F Seldin Lindsey A Criswell Peter K Gregersen Ellen Beasley Glenys Thomson Christopher I Amos Ann B Begovich

The minor allele of the R620W missense single-nucleotide polymorphism (SNP) (rs2476601) in the hematopoietic-specific protein tyrosine phosphatase gene, PTPN22, has been associated with multiple autoimmune diseases, including rheumatoid arthritis (RA). These genetic data, combined with biochemical evidence that this SNP affects PTPN22 function, suggest that this phosphatase is a key regulator o...

2014
Halit Akbas Selma Bakar Dertlioglu Fuat Dilmec Ahmet Engin Atay

BACKGROUND Vitiligo is an autoimmune polygenic disorder characterized by loss of pigmentation due to melanocyte destruction. The PTPN22 gene +1858 C>T single nucleotide polymorphism (rs2476601) has been shown to be associated with various autoimmune disorders. OBJECTIVE The aim of this study was to investigate whether the PTPN22 gene +1858 C>T single nucleotide polymorphism is associated with...

Journal: :Arthritis Research & Therapy 2006
Christopher Butt Lynette Peddle Celia Greenwood Sean Hamilton Dafna Gladman Proton Rahman

Recent studies have implicated PTPN22 and tp53 in susceptibility to several autoimmune diseases, including rheumatoid arthritis, suggesting that these genes are important in maintaining immune homeostasis. Because autoimmune diseases may share similar susceptibility loci, investigation of these genes in psoriatic arthritis (PsA) is of potential relevance. As a result we investigated known codin...

2011
Michele Ciro Totaro Barbara Tolusso Valerio Napolioni Francesca Faustini Silvia Canestri Alice Mannocci Elisa Gremese Silvia Laura Bosello Stefano Alivernini Gianfranco Ferraccioli

OBJECTIVE The PTPN22 rs2476601 polymorphism is associated with rheumatoid arthritis (RA); nonetheless, the association is weaker or absent in some southern European populations. The aim of the study was to evaluate the association between the PTPN22 rs2476601 polymorphism and RA in Italian subjects and to compare our results with those of other European countries, carrying out a meta-analysis o...

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