نتایج جستجو برای: killer cells

تعداد نتایج: 1392378  

2014
Alexandre Iannello David H Raulet

We recently dissected how senescent tumors can trigger complementing signaling pathways that mobilize natural killer (NK) cells to eliminate malignant cells. In addition to cell-intrinsic effects on proliferation, senescence induces the production of chemokine (C-C motif) ligand 2 (CCL2), which recruits NK cells to mediate direct tumoricidal effects. Hence, senescence activates a cancer cell-ex...

Journal: :Journal of leukocyte biology 2016
Anna Maciejewski-Duval Floriane Meuris Alexandre Bignon Marie-Laure Aknin Karl Balabanian Laurence Faivre Marlène Pasquet Vincent Barlogis Claire Fieschi Christine Bellanné-Chantelot Jean Donadieu Géraldine Schlecht-Louf Viviana Marin-Esteban Françoise Bachelerie

GATA2 deficiency-formerly described as MonoMAC syndrome; dendritic cells, monocytes, B cells, and natural killer cell deficiency; familial myelodysplastic syndrome/acute myeloid leukemia; or Emberger syndrome-encompasses a range of hematologic and nonhematologic anomalies, mainly characterized by monocytopenia, B lymphopenia, natural killer cell cytopenia, neutropenia, immunodeficiency, and a h...

Journal: :International Journal of Homoeopathic Sciences 2021

Two cases of obstinate cancers are cured by a new hypothesis synergistic therapy approach where Cancer Homoeotherapeutics were analysed scientifically immunotherapy modus operandi homoeopathic medicine selection is done activating natural cancer immunity killer cells (NK) through the interferon produced viral infection. So synthesis antiviral and antimiasmatic to treat cases.

Journal: :The Journal of Experimental Medicine 2003
Eckart Schott Roberto Bonasio Hidde L. Ploegh

Natural killer cells gauge the absence of self class I MHC on susceptible target cells by means of inhibitory receptors such as members of the Ly49 family. To initiate killing by natural killer cells, a lack of inhibitory signals must be accompanied by the presence of activating ligands on the target cell. Although natural killer cell-mediated rejection of class I MHC-deficient bone marrow (BM)...

Journal: :The Journal of biological chemistry 1987
P B Ahrens H Ankel

Chinese hamster ovary cell lines with specific lesions in the formation of glycoconjugates were tested for their sensitivity to lysis by interferon-boosted human natural killer cells. We report here that the type of asparagine-linked carbohydrate present on target cell glycoproteins determines their susceptibility to natural killer lysis. The targets tested were Chinese hamster ovary parent cel...

Journal: :iranian journal of immunology 0
kazem ahmadi research center of molecular biology, baqiyatallah university of medical sciences, tehran, iran majid riazipour research center of molecular biology, baqiyatallah university of medical sciences, tehran, iran

background: the major immuno-modulating effects of ganoderma lucidum include mitogenicity and activation of immune effector cells such as t cells, macrophages and natural killer cells resulting in the production of cytokines. objective: the purpose of this study was to evaluate the expression of cd40 and cd80 by g. lucidum-treated human peripheral blood mononuclear cells. methods: monocytes wer...

Journal: :Archives of Iranian medicine 2008
S M Mansour Haeryfar

Although various elements of the immune system are involved in detection and elimination of neoplastic cells, immune surveillance mechanisms are not always successful in eradicating cancer. Invariant natural killer T cells are potent immunomodulatory lymphocytes that secrete large amounts of Th-1 and/or Th-2 cytokines in response to glycolipid agonists. The observed role of invariant natural ki...

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