cAMP inhibits induction of interleukin 2 but not of interleukin 4 in T cells.
نویسندگان
چکیده
منابع مشابه
cAMP inhibits induction of interleukin 2 but not of interleukin 4 in T cells.
In this report, we explore the nature of the inductive stimuli leading to expression of the divergently regulated lymphokines interleukin 2 (IL-2) and interleukin 4 (IL-4). Elevation of cAMP levels blocks IL-2 induction while sparing IL-4 induction. These effects are gene-specific, not cell-specific, and can be observed in the same cells. Transient transfection experiments using murine IL-2 reg...
متن کاملInterleukin 4 inhibits the proliferation but not the differentiation of activated human B cells in response to interleukin 2
The combined effect of IL-4 and IL-2 on proliferation of anti-IgM antibody or Staphylococcus aureus strain Cowan I (SAC)-preactivated B cells was investigated. It was observed that in most cases, rIL-2 used at optimal concentration induced higher levels of tritiated thymidine ([3H]TdR) uptake than rIL-4 used at optimal concentration. When rIL-4 and rIL-2 were added together, it was repeatedly f...
متن کاملExpansion of natural killer cells but not T cells in human interleukin 2/interleukin 2 receptor (Tac) transgenic mice
Transgenic mice expressing both human IL-2 and the L chain of IL-2-R constitutively had an unusual expansion of Thy-1+/CD3-4-8- large granular lymphocytes, which bore the elevated NK activity. Unexpectedly, the transgenic mice had neither T cell expansion nor autoreactive antibodies. The increase in number and activity of NK cells seems to be responsible for both the severe interstitial pneumon...
متن کاملProfile of interleukin-2 production in human mononuclear cells and T-cell lines
Introduction: Interleukin-2 (IL-2) as a T helper type 1 (Th1) cytokine has an important role Background and Objective: Interleukin-2 (IL-2) as a T helper type 1 (Th1) cytokine has an important role in activation, growth and differentiation of several immune cells. Moreover IL-2 is known as a pro-inflammatory and anti-tumoral cytokine. In addition deysregulation of IL-2 in some diseases such as ...
متن کاملEffect of Vitamin D treatment on Interleukin-2 and Interleukin-4 Genes expression in Multiple Sclerosis
Introduction: Multiple sclerosis is a chronic inflammatory disease of central nervous system. The etiology of MS is slightly known, but genetic and environmental factors are reported. Vitamin D regulates gene expression and affects target cell functions. The aim of this study was to investigate the expression variation of IL-2 and IL-4 genes under vitamin D supplementation in patients with mult...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1990
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.87.23.9353