منابع مشابه
Activating natural killer (NK) cytotoxicity of canine CD5−CD21− cells requires low surface CD5 density NK cells
Natural killer (NK) cells play a crucial role in regulating immune functions. Few studies have characterized canine NK cells. We previously demonstrated that canine peripheral blood lymphocytes (PBLs) with a low surface CD5 density (CD5lo) are considered a critical NK population. Natural killer cells in most mammals do not express T-cell markers, but canine CD5lo cells express surface molecules...
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Background: Umbilical cord blood (UCB) is an alternative source of hematopoietic stem cell transplantation (HSCT), used in Leukemia treatment. CD26+ cells, a fraction of CD34 positive cells, are a major population of UCB cells which negatively regulate the in vivo homing and engraftment of HSCs. CD26 is highly expressed in various cells such as HSCs, immune cells, fibroblasts, and epithelial ce...
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In placental mammals, viviparity--the production of living young within the mother's body--evolved under the auspices of the immune system. Elements of immunity were incorporated, giving pregnancy a mildly inflammatory character. Formation of the placenta, the organ that feeds the fetus, involves a cooperation between maternal natural killer (NK) cells and fetal trophoblast cells that remodels ...
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The question of whether the initial eosinophilia in case 2 of our report could have been due to Aspergillus infection, perhaps allergic bronchopulmonary Aspergillus (ABPA), can be answered with reasonable certainty. In our opinion the patient did not have specific evidence for the diagnosis of an Aspergillus infection. Cultures for clinically significant Aspergillus are identified in two to six...
متن کاملNK Cells and Psoriasis
Psoriasis is a chronic condition of the skin characterised by distinctive scaly plaques. The immune system is now thought to play a major role in the development and pathogenesis of psoriasis with immune cells and cytokines influencing keratinocyte function. Keratinocytes in turn, can activate and recruit immune cells leading to a positive feedback loop in disease. Natural Killer (NK) cells are...
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ژورنال
عنوان ژورنال: Nature Reviews Immunology
سال: 2009
ISSN: 1474-1733,1474-1741
DOI: 10.1038/nri2498