نتایج جستجو برای: pdc

تعداد نتایج: 2337  

Journal: :Journal of immunology 2013
Mir Munir A Rahim Lee-Hwa Tai Angela D Troke Ahmad Bakur Mahmoud Elias Abou-Samra Justin G Roy Amelia Mottashed Nicholas Ault Chloe Corbeil Marie-Line Goulet Haggag S Zein Melisa Hamilton-Valensky Gerald Krystal William G Kerr Noriko Toyama-Sorimachi Andrew P Makrigiannis

Plasmacytoid dendritic cells (pDC) are the major producers of type I IFN during the initial immune response to viral infection. Ly49Q, a C-type lectin-like receptor specific for MHC-I, possesses a cytoplasmic ITIM and is highly expressed on murine pDC. Using Ly49Q-deficient mice, we show that, regardless of strain background, this receptor is required for maximum IFN-α production by pDC. Furthe...

Journal: :Biotechnology and bioengineering 1996
H S Shin P L Rogers

Biotransformation of benzaldehyde to L-phenylacetylcarbinol (L-PAC) as a key intermediate for L-ephedrine synthesis has been evaluated using pyruvate decarboxylase (PDC) partially purified from Candida utilis. PDC activity was enhanced by controlled fermentative metabolism and pulse feeding of glucose prior to the enzyme purification. With partially purified PDC, several enzymatic reactions occ...

Journal: :Endocrine journal 2012
Yasuhiro Ito Mitsuyoshi Hirokawa Minoru Kihara Yuuki Takamura Kaoru Kobayashi Akihiro Miya Akira Miyauchi

Papillary thyroid carcinoma (PTC) often has poorly differentiated components, and it is discriminated from others and classified as an independent entity in the General Rules for the Description of Thyroid Cancer by Japanese Society of Thyroid Surgery (JSTS). In this study, we compared the prognostic significance between this type of poorly differentiated carcinoma (PDC-JSTS) and our risk clas...

Journal: :Virology 2012
Kathrin Pritschet Norbert Donhauser Philipp Schuster Moritz Ries Sabrina Haupt Nicolai A Kittan Klaus Korn Stefan Pöhlmann Gudrun Holland Norbert Bannert Elke Bogner Barbara Schmidt

Chronic immune activation, triggered by plasmacytoid dendritic cell (PDC) interferon (IFN)-alpha production, plays an important role in HIV-1 pathogenesis. As the entry of HIV-1 seems to be important for the activation of PDC, we directly characterized the viral entry into these cells using immuno-electron microscopy, cellular fractionation, confocal imaging, and functional experiments. After a...

Journal: :Molecular cell 2014
Jun Fan Changliang Shan Hee-Bum Kang Shannon Elf Jianxin Xie Meghan Tucker Ting-Lei Gu Mike Aguiar Scott Lonning Huaibin Chen Moosa Mohammadi Laura-Mae P Britton Benjamin A Garcia Maša Alečković Yibin Kang Stefan Kaluz Narra Devi Erwin G Van Meir Taro Hitosugi Jae Ho Seo Sagar Lonial Manila Gaddh Martha Arellano Hanna J Khoury Fadlo R Khuri Titus J Boggon Sumin Kang Jing Chen

Mitochondrial pyruvate dehydrogenase complex (PDC) is crucial for glucose homeostasis in mammalian cells. The current understanding of PDC regulation involves inhibitory serine phosphorylation of pyruvate dehydrogenase (PDH) by PDH kinase (PDK), whereas dephosphorylation of PDH by PDH phosphatase (PDP) activates PDC. Here, we report that lysine acetylation of PDHA1 and PDP1 is common in epiderm...

2013
Melissa Swiecki Yaming Wang Susan Gilfillan Marco Colonna

Plasmacytoid dendritic cells (pDC) produce type I interferons (IFN-I) and proinflammatory cytokines in response to viruses; however, their contribution to antiviral immunity in vivo is unclear. In this study, we investigated the impact of pDC depletion on local and systemic antiviral responses to herpes simplex virus (HSV) infections using CLEC4C-DTR transgenic mice. We found that pDC do not ap...

Journal: :Cell 2008
Babacar Cisse Michele L. Caton Manfred Lehner Takahiro Maeda Stefanie Scheu Richard Locksley Dan Holmberg Christiane Zweier Nicolette S. den Hollander Sarina G. Kant Wolfgang Holter Anita Rauch Yuan Zhuang Boris Reizis

Plasmacytoid dendritic cells (PDCs) represent a unique immune cell type specialized in type I interferon (IFN) secretion in response to viral nucleic acids. The molecular control of PDC lineage specification has been poorly understood. We report that basic helix-loop-helix transcription factor (E protein) E2-2/Tcf4 is preferentially expressed in murine and human PDCs. Constitutive or inducible ...

2012
Monica Vasudev Dorothy S. Cheung Hannah Pincsak Shun-Hwa Li Ke Yan Pippa Simpson Trivikram Dasu Mitchell H. Grayson

BACKGROUND In a mouse model of viral induced atopic disease, expression of FcεRI on dendritic cells is critical. While adult human conventional (cDC) and plasmacytoid (pDC) dendritic cells have been shown to express FcεRI, it is not known if this receptor is expressed in childhood and how its expression is governed by IgE. METHODS Following informed consent of subjects (n = 27, aged 12-188 mo...

2008
Ankur Agarwal Ravi Shankar

The cost and the time-to-market for a product will increase exponentially if innovations are not brought and deployed into the product development cycle (PDC). This is due to the fact the system complexity is increasing exponentially with time. This increasing complexity results from introduction of new protocols, higher radio frequencies, and increasing number of applications, among others, in...

Journal: :FEMS immunology and medical microbiology 2010
Raymond J Moniz Ann M Chan Lynn K Gordon Jonathan Braun Moshe Arditi Kathleen A Kelly

Given their immune-modulating capacity, regulatory T cells (Treg) cells may be important players in the induction of the protective T-cell response (Th1) to genital chlamydial infection. Recent work has demonstrated that plasmacytoid dendritic cells (pDC) respond to genital chlamydial infection, and that pDC may be uniquely positioned for the induction of Treg cells during this infection. Here,...

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