نتایج جستجو برای: myd88

تعداد نتایج: 4018  

2017
Changwei Li Isabelle Maillet Claire Mackowiak Camille Viala Franco Di Padova Mei Li Dieudonnée Togbe Valérie Quesniaux Yuping Lai Bernhard Ryffel

Atopic dermatitis (AD) is a chronic Th2 type inflammatory skin disorder. Here we report that MyD88 signaling is crucial in the pathogenesis of experimental AD induced by vitamin D3 analog MC903. The clinical signs and inflammation caused by MC903 are drastically reduced in MyD88-/- mice with diminished eosinophil, neutrophil infiltration and Th2 cytokine expression. The biological effect of int...

2016
Sang-Yong Shin Seung-Tae Lee Hyun-Young Kim Chang-Hun Park Hee-Jin Kim Jong-Won Kim Seok Jin Kim Won Seog Kim Sun-Hee Kim

BACKGROUND Recent studies have identified a high prevalence of the MYD88 L265P mutation in lymphoplasmacytic lymphoma (LPL)/Waldenstrom macroglobulinemia (WM) cases, whereas low frequencies have been observed in other B cell non-Hodgkin lymphomas (NHLs). METHODS We evaluated the sensitivity of the mutant enrichment 3'-modified oligonucleotide (MEMO)-PCR technique, a new detection method. We e...

Journal: :Journal of immunology 2000
O Takeuchi K Hoshino S Akira

Toll-like receptor (TLR) family acts as pattern recognition receptors for pathogen-specific molecular patterns. We previously showed that TLR2 recognizes Gram-positive bacterial components whereas TLR4 recognizes LPS, a component of Gram-negative bacteria. MyD88 is shown to be an adaptor molecule essential for TLR family signaling. To investigate the role of TLR family in host defense against G...

2012
Mark L. Hanke Amanda Angle Tammy Kielian

Bacterial biofilms represent a significant therapeutic challenge based on their ability to evade host immune and antibiotic-mediated clearance. Recent studies have implicated IL-1β in biofilm containment, whereas Toll-like receptors (TLRs) had no effect. This is intriguing, since both the IL-1 receptor (IL-1R) and most TLRs impinge on MyD88-dependent signaling pathways, yet the role of this key...

2017
Xiaohong Zhou Mirja Ramke Ashish V. Chintakuntlawar Jeong Yoon Lee Jaya Rajaiya James Chodosh

Pattern recognition receptors (PRRs) are critical to the early detection and innate immune responses to pathogens. In particular, the toll-like receptor (TLR) system and its associated adaptor proteins have essential roles in early host responses to infection. Epidemic keratoconjunctivitis, caused by the human adenovirus, is a severe ocular surface infection associated with corneal inflammation...

Journal: :Journal of virology 2011
Sang-Moo Kang Dae-Goon Yoo Min-Chul Kim Jae-Min Song Min-Kyung Park Eunju O Fu-Shi Quan Shizuo Akira Richard W Compans

We investigated the roles of MyD88, an innate adaptor signaling molecule, in inducing protective humoral immunity after vaccination with influenza virus-like particles (VLPs). MyD88 knockout C57BL/6 mice (MyD88(-/-) mice) vaccinated with influenza VLPs showed significant defects in inducing IgG2a/c isotype antibodies and in generating splenic recall memory B cell responses and antibody-secretin...

Journal: :The Journal of clinical investigation 2017
Irina A Leaf Shunsaku Nakagawa Bryce G Johnson Jin Joo Cha Kristen Mittelsteadt Kevin M Guckian Ivan G Gomez William A Altemeier Jeremy S Duffield

Fibrotic disease is associated with matrix deposition that results in the loss of organ function. Pericytes, the precursors of myofibroblasts, are a source of pathological matrix collagens and may be promising targets for treating fibrogenesis. Here, we have shown that pericytes activate a TLR2/4- and MyD88-dependent proinflammatory program in response to tissue injury. Similarly to classic imm...

Journal: :Blood 2011
Adeeb H Rahman Ruan Zhang Christopher D Blosser Baidong Hou Anthony L Defranco Jonathan S Maltzman E John Wherry Laurence A Turka

Inflammatory signals induced during infection regulate T-cell expansion, differentiation, and memory formation. Toll-like receptors (TLRs) are inflammatory mediators that allow innate immune cells to recognize and respond to invading pathogens. In addition to their role in innate immune cells, we have found that signals delivered through the TLR adapter protein myeloid differentiation protein 8...

Journal: :Blood 2013
Lian Xu Zachary R Hunter Guang Yang Yangsheng Zhou Yang Cao Xia Liu Enrica Morra Alessandra Trojani Antonino Greco Luca Arcaini Marzia Varettoni Jennifer R Brown Yu-Tzu Tai Kenneth C Anderson Nikhil C Munshi Christopher J Patterson Robert J Manning Christina K Tripsas Neal I Lindeman Steven P Treon

By whole-genome and/or Sanger sequencing, we recently identified a somatic mutation (MYD88 L265P) that stimulates nuclear factor κB activity and is present in >90% of Waldenström macroglobulinemia (WM) patients. MYD88 L265P was absent in 90% of immunoglobulin M (IgM) monoclonal gammopathy of undetermined significance (MGUS) patients. We therefore developed conventional and real-time allele-spec...

2017
Munir M. Mosaheb Michael L. Reiser Lee M. Wetzler

Vaccines are critical in the fight against infectious diseases, and immune-stimulating adjuvants are essential for enhancing vaccine efficacy. However, the precise mechanisms of action of most adjuvants are unknown. There is an urgent need for customized and adjuvant formulated vaccines against immune evading pathogens that remain a risk today. Understanding the specific role of various cell ty...

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