T cell-intrinsic factors contribute to the differential ability of CD8+ T cells to rapidly secrete IFN-γ in the absence of antigen.

CCD107a Expression and IFN-γ Production as Markers for Evaluation of Cytotoxic CD3+ CD8+ T Cell Response to CMV Antigen in Women with Recurrent Spontaneous Abortion

بررسی تأثیر سرم موش حامله بر روی سلولهای دندریتیک در القاء تحریک لنفوسیت‌های T و تولید سیتوکین‌های IL-10 و IFN-γ Dendritic Cells and Antigen Specific T Cell Responses: Effect of Pregnant Mouse Serum

    Background & Aim: Tolerance to the semi-allogenic fetal graft by the maternal immune system is a medical enigma that has stimulated investigations for a half of century. Several hypotheses have been proposed to explain the tolerance of mother to the fetus. The successful pregnancy is proposed and proved by many scientists to be a Th2 dominant phenomenon. This hypothesis is proved in most as...

Islet Amyloid Polypeptide is not a Target Antigen for CD8+ T-Cells in Type 2 Diabetes

Background: Type 2 diabetes (T2D) is a chronic metabolic disorder in which beta-cells are destroyed. The islet amyloid polypeptide (IAPP) produced by beta-cells has been reported to influence beta-cell destruction. Objective: To evaluate if IAPP can act as an autoantigen and therefore, to see if CD8 + T-cells specific for this protein might be present in T2D patients. Methods: Peripheral blood ...

Down-Regulation of T Cell Function by Heat Shock-Induced Excretory Factor of Leishmania Major

Background: Despite demonstration of molecular and biochemical changes induced by heat shock on Leishmania, the immunological importance of such changes has not been elucidated.  Objective: Studying the effect of two excretory factors prepared under heat shock and ambient temperature from Leishmania major on Balb/c splenocytes function.  Methods: The parasites were cultured at 25°C and then sub...

بررسی مقادیر سرمی اینترفرون گاما، اینترلوکین 12 و درصد سلولهای ایمنی CD8، CD4 و NK در زنان مبتلا به سرطان پستان متاستاتیک، غیرمتاستاتیک و افراد سالم

    Background & Aim: The immune system is quite capable to combat tumors and many immunological parameters including cytokines such as IL-12 & IFN-γ play major roles in this regard. IL-12 is also the major cytokine responsible for the differentiation of TH1 cells, which are potent producers of IFN-γ, IFN-γ in turn has a powerful enhancing effect on the ability of phagocytes to produce IL-12 as...