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Bcl6 AND Langerhans cells

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https://www.readbyqxmd.com/read/30255584/synchronous-case-of-follicular-lymphoma-and-langerhans-cell-sarcoma-in-the-same-lymph-node
#1
Joji Shimono, Hiroaki Miyoshi, Fumiko Arakawa, Hideyuki Abe, Takuto Miyagishima, Jun Akiba, Takanori Teshima, Koichi Ohshima
Langerhans cell sarcoma (LCS) is a very rare histiocytic and dendritic cell neoplasm originating from Langerhans cells. There are case reports of histiocytic and dendritic cell neoplasms synchronously or sequentially observed in patients with malignant lymphoma. We present a case in which LCS and follicular lymphoma (FL) grade 3a were observed within the same lymph node. A 66-year-old male visited our hospital with a general malaise. Pleural effusion and systemic lymph adenopathy were detected. Biopsy of an inguinal lymph node was performed...
November 2018: Pathology International
https://www.readbyqxmd.com/read/21511186/a-subset-of-interleukin-21-chemokine-receptor-ccr9-t-helper-cells-target-accessory-organs-of-the-digestive-system-in-autoimmunity
#2
Helen M McGuire, Alexis Vogelzang, Cindy S Ma, William E Hughes, Pablo A Silveira, Stuart G Tangye, Daniel Christ, David Fulcher, Marika Falcone, Cecile King
This study describes a CD4+ T helper (Th) cell subset marked by coexpression of the cytokine interleukin 21 (IL-21) and the gut-homing chemokine receptor CCR9. Although CCR9+ Th cells were observed in healthy mice and humans, they were enriched in the inflamed pancreas and salivary glands of NOD mice and in the circulation of Sjögren's syndrome patients. CCR9+ Th cells expressed large amounts of IL-21, inducible T cell costimulator (ICOS), and the transcription factors Bcl6 and Maf, and also supported antibody production from B cells, thereby resembling T follicular B helper (Tfh) cells...
April 22, 2011: Immunity
https://www.readbyqxmd.com/read/20935202/bcl6-is-required-for-differentiation-of-ig-like-transcript-3-fc-induced-cd8-t-suppressor-cells
#3
Chih-Chao Chang, George Vlad, Vivette D D'Agati, Zhuoru Liu, Qing-yin Zhang, Piotr Witkowski, Ali A Torkamani, Michael B Stokes, Eric K Ho, Raffaello Cortesini, Nicole Suciu-Foca
Ig-like transcript 3 (ILT3) is an inhibitory receptor expressed by tolerogenic dendritic cells. When human CD8(+) T cells are allostimulated in the presence of recombinant ILT3-Fc protein, they differentiate into antigenic specific T suppressor (Ts) cells that inhibit CD4 and CD8 T cell effector function both in vitro and in vivo. ILT3-Fc-induced CD8(+) Ts cells express high amounts of BCL6 that are crucial to their function. Knockdown of BCL6 from unprimed human T cells prevents their differentiation into Ts cells, whereas ex vivo overexpression of BCL6 converts CD8(+) T cells into Ts cells...
November 15, 2010: Journal of Immunology: Official Journal of the American Association of Immunologists
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