Below the NK-cell surface: PIP2.
نویسنده
چکیده
In this issue Blood, Micucci and colleagues demonstrate that PIP2 plays an essential role in NK-cell cytotoxicity by controlling the release of lytic mediators at the NK cell-target interface.
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...
متن کاملDetermination of lymphocytes surface markers in patients with thermal burns and the influence of burn size on mononuclear cell subsets
Background: Thermal burn injuries impair the host defence system. Hence, in the present study, we aimed at investigating the changes in the number and phenotype of peripheral blood lymphocyte populations (T, B, and natural killer cells) and their subpopulations in patients with thermal burns and determining the relationships with different sizes of total body surface area (TBSA). ...
متن کاملSUSCEPTIBILITY OF HUMAN WM MELANOMA CELL LINES TO NK AND LAK CYTOTOXICITY AND THEIR RELEVANCE TO THE LEVEL OF MHC CLASS I AND ICAM-l ANTIGEN EXPRESSION
The effect of natural killer (NK) cells and lymphokine activated killer ( LAK) cells was studied on a group of human melanoma cell lines. Peripheral blood from healthy volunteers was utilized as a fresh source of natural killer cells and rhI L-2 for producing LAK cells. The cytotoxicity of effector cells was quantified using a 4 hour SI determining the density of antigen expression on tumor...
متن کاملKiller Cell Immunoglobulin-Like Receptors Influence the Innate and Adaptive Immune Responses
Natural killer (NK) cells are a subset of lymphocytes which play a crucial role in early innate immune response against infection and tumor transformation. Furthermore, they secrete interferon-γ (IFN-γ) and tumor necrosis factor (TNF) prompting adaptive immu-nity. NK cells distinguish the unhealthy cells from the healthy ones through an array of cell-surface receptors. Human NK cells use inhibi...
متن کاملجدا سازی و تخلیص زیر مجموعه های سلول های کشنده طبیعی با استفاده از مایع رویی کشت سلول های تک هسته ای به کمک PHA و ارزیابی قدرت کشندگی آنها
Natural Killer (NK) cells are the main lymphocyte population expressing P75 B chain of the IL-2 receptor (IL-2R). Consequently, incubation of peripheral blood lymphocytes with IL-2 induce selective activation of NK cells and results in NK activity and generation of Lymphokine activated killer (LAK) cells activity and proliferation. One of the early events during IL-2 activation of peripheral bl...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Blood
دوره 111 8 شماره
صفحات -
تاریخ انتشار 2008