نتایج جستجو برای: ژن tlr2

تعداد نتایج: 20341  

Journal: :Neuroscience letters 2011
Yi Zhang Hui Li Yi Li Xiuli Sun Mengyang Zhu Gregory Hanley Gene Lesage Deling Yin

Opioids are powerful pain relievers, but also potent inducers of dependence and tolerance. Chronic morphine administration (via subcutaneous pellet) induces morphine dependence in the nucleus accumbens, an important dependence region in the brain, yet the cellular mechanisms are mostly unknown. Toll-like receptor 2 (TLR2) plays an essential function in controlling innate and inflammatory respon...

Journal: :Immunity 2005
Pascale Jeannin Barbara Bottazzi Marina Sironi Andrea Doni Marco Rusnati Marco Presta Virginia Maina Giovanni Magistrelli Jean François Haeuw Guillaume Hoeffel Nathalie Thieblemont Nathalie Corvaia Cecilia Garlanda Yves Delneste Alberto Mantovani

Outer membrane protein A (OmpA) is a conserved major component of the outer membrane of Enterobacteriaceae. Here, we report that OmpA from Klebsiella pneumoniae (KpOmpA) activates macrophages and dendritic cells (DCs) in a TLR2-dependent way. However, TLR2 does not account for binding of KpOmpA to innate immune cells. KpOmpA binds the scavenger receptors (SRs) LOX-1 and SREC-I, but not other me...

Journal: :Journal of virology 2005
Jennifer P Wang Evelyn A Kurt-Jones Ok S Shin Michael D Manchak Myron J Levin Robert W Finberg

The pattern recognition receptor Toll-like receptor 2 (TLR2) has been implicated in the response to several human viruses, including herpes simplex viruses (types 1 and 2) and cytomegalovirus. We demonstrated that varicella-zoster virus (VZV) activates inflammatory cytokine responses via TLR2. VZV specifically induced interleukin-6 (IL-6) in human monocytes via TLR2-dependent activation of NF-k...

2016
Alison C McKelvey Travis B Lear Sarah R Dunn John Evankovich James D Londino Joseph S Bednash Yingze Zhang Bryan J McVerry Yuan Liu Bill B Chen

Toll-like receptor 2 (TLR2) is a pattern recognition receptor that recognizes many types of PAMPs that originate from gram-positive bacteria. Here we describe a novel mechanism regulating TLR2 protein expression and subsequent cytokine release through the ubiquitination and degradation of the receptor in response to ligand stimulation. We show a new mechanism in which an uncharacterized RING fi...

2011
Xianbao He Anjali Nair Samrawit Mekasha Joseph Alroy Catherine M. O'Connell Robin R. Ingalls

Chlamydia trachomatis is a common sexually transmitted pathogen and is associated with infant pneumonia. Data from the female mouse model of genital tract chlamydia infection suggests a requirement for TLR2-dependent signaling in the induction of inflammation and oviduct pathology. We hypothesized that the role of TLR2 in moderating mucosal inflammation is site specific. In order to investigate...

2016
Alessia Piermattei Giuseppe Migliara Gabriele Di Sante Maria Foti Soren Bohos Hayrabedyan Angela Papagna Maria Concetta Geloso Maddalena Corbi Mariagrazia Valentini Alessandro Sgambato Giovanni Delogu Gabriela Constantin Francesco Ria

Mycobacteria display pro- and anti-inflammatory effects in human and experimental pathology. We show here that both effects are mediated by Toll-like receptor 2 (Tlr2), by exploiting a previously characterized Tlr2 variant (Met82Ile). Tlr2 82ile promoted self-specific proinflammatory polarization as well as expansion of ag-specific FoxP3(+) Tregs, while Tlr2 82met impairs the expansion of Tregs...

2014
Shyam S. Dahiya Govindasamy Nagarajan Vijay K. Bharti Shelesh K. Swami Sharat C. Mehta Fateh C. Tuteja Shirish D. Narnaware NitinV. Patil

The Toll-like receptor 2 (TLR2) gene of old world camels (Camelus dromedarius and Camelus bactrianus) was cloned and sequenced. The TLR2 gene of the dromedary camel had the highest nucleotide and amino acid identity with pig, i.e., 66.8% and 59.6%, respectively. Similarly, the TLR2 gene of the Bactrian camel also had the highest nucleotide and amino acid identity with pig, i.e., 85.7% and 81.4%...

Journal: :Journal of leukocyte biology 2009
Jarin Chun Alice Prince

In airway cells, TLR2 stimulation by bacterial products activates Ca2+ fluxes that signal leukocyte recruitment to the lung and facilitates transepithelial migration into the airway lumen. TLR2 is apically displayed on airway cells, where it senses bacterial stimuli. Biochemical and genetic approaches demonstrate that TLR2 ligands stimulate release of Ca2+ from intracellular stores by activatin...

Journal: :The Journal of infectious diseases 2012
Seung H Kang Rima C Abdel-Massih Robert A Brown Ross A Dierkhising Walter K Kremers Raymund R Razonable

Immunity against cytomegalovirus (CMV) is initiated after its recognition by Toll-like receptor 2 (TLR2). We assessed the association between a single-nucleotide polymorphism (SNP) that impairs TLR2 function and CMV disease in a cohort of 737 liver recipients. Ninety-two of 737 patients (7.1%, 10.9%, 12.3%, and 12.5% by 3, 6, 12, and 24 months, respectively) developed CMV disease. Kaplan-Meier ...

2009
Jutaro Nakamura Akira Meguro Masao Ota Eiichi Nomura Tadayuki Nishide Kenji Kashiwagi Fumihiko Mabuchi Hiroyuki Iijima Kazuhide Kawase Tetsuya Yamamoto Makoto Nakamura Akira Negi Takeshi Sagara Teruo Nishida Masaru Inatani Hidenobu Tanihara Makoto Aihara Makoto Araie Takeo Fukuchi Haruki Abe Tomomi Higashide Kazuhisa Sugiyama Takashi Kanamoto Yoshiaki Kiuchi Aiko Iwase Shigeaki Ohno Hidetoshi Inoko Nobuhisa Mizuki

PURPOSE Toll-like receptor 2 (TLR2) is a transmembrane receptor that mediates immune responses to exogenous and endogenous ligands, and interacts with heat-shock proteins, which are reportedly involved in normal tension glaucoma (NTG). We investigated whether TLR2 polymorphisms are associated with NTG. METHODS 200 Japanese patients with NTG and 128 healthy Japanese controls were recruited. We...

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