Poster - Nk Cells and Infection

نویسندگان

  • Tina Senff
  • Christine Thöns
  • Maureen Peters
  • Norbert Scherbaum
  • Jörg Timm
  • Kiran Kundu
  • Yonat Shemer-Avni
  • Avishai Shemesh
  • Michael Brusilovsky
  • Mesfin Meshesha
  • Semaria Solomon-Alemayehu
  • Shai Levin
  • Orly Gershoni-Yahalom
  • Kerry S. Campbell
  • Angel Porgador
چکیده

Background and aims: Natural killer T (NKT) cells represent a subset of immune cells that share characteristics of the innate and adaptive immunity. Invariant NKT cells recognize glycolipid antigens such as α galactosylceramide (αGalCer) presented by the non classical MHC molecule CD1d. Decreased NKT cell frequencies have been reported in chronically HCV infected patients, however, contradicting reports exist. We therefore aimed to comparatively study NKT cell frequencies and function in people who inject drugs (PWID) with chronic and spontaneously resolved HCV infection.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Killer 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 کامل

بررسی فتوتیپ‌های سلولیNatural killer (NK) و سلول‌های شبه Natural killer T(NKT) در بیماران مبتلا به زخم پپتیک و سرطان معده‌ی ناشی از عفونت هلیکوباکتر پیلوری

Background and purpose: The aim of this study was to compare the proportion of natural killer (NK) and natural killer T (NKT)-like cells in dyspeptic disorders caused by Helicobacter pylori (H. pylori). Materials and methods: In a case-control study, 27 patients with gastric cancer (GC), 25 patients with peptic ulcer (PUD), and 22 patients with non-ulcer dyspepsia (NUD) were enrolled. After en...

متن کامل

Comparison between interleukine-17 levels by NK-T cells in patients with chronic hepatitis C and healthy individuals

Background and Aims: Natural killer T (NKT) cells have been suggested to play critical roles in a wide range of immune responses especially against hepatotropic pathogens such as hepatitis C virus (HCV). In  the  present  study,  we  investigated  the  status  of  NKT  cells  by producing interleukin-17 cytokine in  peripheral  bl...

متن کامل

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 کامل

جدا 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 کامل

ذخیره 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 نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2017