Expression of inducible nitric oxide synthase in human cultured endometrial stromal cells.
نویسندگان
چکیده
The aim of the present study was to investigate the expression of mRNA and protein for inducible nitric oxide synthase (iNOS) in human cultured endometrial stromal cells. The endometrial stromal cells were cultured in the absence or the presence of cytokines such as interleukin (IL)-1beta and interferon (IFN)-gamma, which are inherently detectable in the endometrium. Nested reverse transcription-polymerase chain reaction detected iNOS mRNA in stromal cells cultured without cytokines. Northern blot analysis failed to detect iNOS mRNA in stromal cells cultured for 9 h in the absence of cytokines or in the presence of IL-1beta (10-100 ng/ml) or IFN-gamma (10-1000 U/ml) alone, but could detect iNOS mRNA cultured in combinations of IL-1beta and IFN-gamma. The concentrations of iNOS mRNA were increased as early as 3 h after the addition of the cytokine combination and persisted for up to 36 h. Western blot analysis demonstrated iNOS protein in stromal cells cultured for 12 h with combined IL-1beta and IFN-gamma. These results raise the possibility that nitric oxide locally synthesized by iNOS may be involved in the control of endometrial functions.
منابع مشابه
EXPRESSION OF INDUCIBLE NITRIC OXIDE SYNTHASE GENE (iNOS) STIMULATED BY HYDROGEN PEROXIDE IN HUMAN ENDOTHELIAL CELLS
Inducible nitric oxide synthase (iNOS) gene expresses a calcium calmudolin-independent enzyme which can catalyse NO production from L-arginine. The induction of iNOS activity has been demonstrated in a wide variety of cell types under stimulation with cytokines and lipopoly saccharide (LPS). Previous studies indicated that all nitric oxide synthases (NOS) activated in human umbilical vein endot...
متن کاملEffect of 17-? Estradiol on the Expression of Inducible Nitric oxide Synthase in Parent and Tamoxifen Resistant T47D Breast Cancer Cells
Indirect evidence suggests that estrogen is involved in the etiology of breast cancer. Estrogen is also thought to modulate nitric oxide (NO) in human breast tumor tissue via regulation of inducible nitric oxide synthase (iNOS). Objectives of this study were to determine whether estradiol (E2) affects iNOS expression level in breast cancer cells and to study the effect of various concentrations...
متن کاملEffect of 17-? Estradiol on the Expression of Inducible Nitric oxide Synthase in Parent and Tamoxifen Resistant T47D Breast Cancer Cells
Indirect evidence suggests that estrogen is involved in the etiology of breast cancer. Estrogen is also thought to modulate nitric oxide (NO) in human breast tumor tissue via regulation of inducible nitric oxide synthase (iNOS). Objectives of this study were to determine whether estradiol (E2) affects iNOS expression level in breast cancer cells and to study the effect of various concentrations...
متن کاملP-96: Survey of In Vitro Effect of Noscapine on Nitric Oxide Secretion of Human Endometrial Stromal Cell
Background: Noscapine is cough suppressant drug with cell inhibitory effect. It is introduced for anti-cancer treatment. The aim of present study was to determine in vitro noscapine effect on nitric oxide (NO) secretion by human endometrial stromal cells. Materials and Methods: Human endometrial biopsies (n=8) were obtained in sterile condition and were chopped mechanically and digested by enzy...
متن کاملAGE proteins as a causative factor in Alzheimer's Disease
The reaction between reducing sugars and protein free amines, known as the Maillar reaction results in the formation of advanced glycation endproducts (AGEs). AGE modification changes the structure of proteins to amyloid cross-beta structure. These protein structures can activate receptors known as RAGE on glial cells (microglia and astrocytes), and induce the expression of inducible nitric oxi...
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:
- Molecular human reproduction
دوره 5 4 شماره
صفحات -
تاریخ انتشار 1999