نتایج جستجو برای: plasmacytoid dendritic cells

تعداد نتایج: 1400682  

Journal: :International journal of clinical and experimental pathology 2014
Xiao-Bin Cui Jing Jin Xue-Lian Pang Su Li Chun-Xia Liu Ting-Ting Li Hao Peng Shu-Mao Zhang Li Li Wei-Hua Liang Yun-Zhao Chen Feng Li

Blastic plasmacytoid dendritic cell neoplasm (BPDCN) derived from plasmacytoid dendritic cell precursors is a very rare, and characterized by cutaneous and bone marrow involvement and leukemic spread. The neoplasm presents with an aggressive behavior, and the clinical findings include cytopenia, particularly thrombocytopenia. The tumor cells are negative for antigens of T- and B- cell lines. Ho...

2007
Jane Tian Ana Maria Avalos Su-Yau Mao Bo Chen Kannaki Senthil Herren Wu Peggy Parroche Stacey Drabic Douglas Golenbock Cherilyn Sirois Jing Hua Ling Ling An Laurent Audoly Greg La Rosa Angelika Bierhaus Peter Naworth Ann Marshak-Rothstein Mary K Crow Katherine A Fitzgerald Eicke Latz Peter A Kiener Anthony J Coyle

Increased concentrations of DNA-containing immune complexes in the serum are associated with systemic autoimmune diseases such as lupus. Stimulation of Toll-like receptor 9 (TLR9) by DNA is important in the activation of plasmacytoid dendritic cells and B cells. Here we show that HMGB1, a nuclear DNA-binding protein released from necrotic cells, was an essential component of DNA-containing immu...

Journal: :Journal of immunology 2012
Melissa Swiecki Yaming Wang Susan Gilfillan Deborah J Lenschow Marco Colonna

Bone marrow stromal Ag 2 (BST2) is a transmembrane protein that prevents virus release from infected cells. It was also reported that BST2 inhibits type I IFN production by plasmacytoid dendritic cells. To determine BST2 impact on antiviral responses in vivo, we generated BST2(-/-) mice. Following infection with a murine retrovirus, BST2(-/-) mice had slightly elevated viral loads; however, inf...

Journal: :Thorax 2007
Kai Bratke Marek Lommatzsch Peter Julius Michael Kuepper Hans-Dieter Kleine Werner Luttmann J Christian Virchow

BACKGROUND Dendritic cells control pulmonary immune reactions. Characteristics of dendritic cells in human bronchoalveolar lavage fluid (BALF) after allergen challenge are unknown. METHODS 7 patients with allergic asthma (median 23 years, range 19-25 years) underwent segmental challenge and were lavaged 10 min and 24 h after challenge. Dendritic cell subsets and surface markers in BALF and in...

2007
Kai Bratke Marek Lommatzsch Peter Julius Michael Kuepper Hans-Dieter Kleine Werner Luttmann J Christian Virchow

Background: Dendritic cells control pulmonary immune reactions. Characteristics of dendritic cells in human bronchoalveolar lavage fluid (BALF) after allergen challenge are unknown. Methods: 7 patients with allergic asthma (median 23 years, range 19–25 years) underwent segmental challenge and were lavaged 10 min and 24 h after challenge. Dendritic cell subsets and surface markers in BALF and in...

Journal: :Handbook of experimental pharmacology 2009
Alfonso Martín-Fontecha Antonio Lanzavecchia Federica Sallusto

Dendritic cells are potent antigen-presenting cells endowed with the unique ability to prime T-cell responses. To present foreign antigens to na ive T cells, dendritic cells must migrate from inflamed or injured peripheral tissues to the closest draining lymph nodes through afferent lymphatic vessels. In addition, conventional dendritic cells, plasmacytoid dendritic cells and monocytes enter ly...

Journal: :Journal of clinical and experimental hematopathology : JCEH 2012
Kanako Tsunoda Takashi Satoh Kiyomi Akasaka Yuichi Ishikawa Yoji Ishida Tomoyuki Masuda Toshihide Akasaka

Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a clinically aggressive tumor derived from the precursor of plasmacytoid dendritic cells. We describe two cases of BPDCN. In case 1, the patient presented with multiple erythema on the trunk and arms. Histopathology of a skin biopsy specimen and immunohistochemistry demonstrated that the tumor cells were small to medium-sized with a blasto...

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