التفاصيل البيبلوغرافية
| العنوان: |
1142280946 Effect of estradiol and PAMPs on class II mediated antigen presentation and immunomodulatory molecule expression in the mouse female reproductive tract. |
| المؤلفون: |
Wira, C. R., Rossoll, R. M., Ochiel, D. O., Haddad, S. N., Schaefer, T. M. |
| المصدر: |
American Journal of Reproductive Immunology; Jun2006, Vol. 55 Issue 6, p412-412, 1p |
| مصطلحات موضوعية: |
ANTIGEN presenting cells, IMMUNITY, IMMUNE response, REPRODUCTION, T cells |
| مستخلص: |
Problem: Antigen presenting cells (APC) in the female reproductive tract play important roles in innate immune defense and activation of the adaptive immune responses. The objective of this study was to examine the effects of estradiol and PAMP on antigen presentation in the female reproductive tract. Method of Study: DO11.10 T cell antigen receptor transgenic mice specific for the MHC class II-restricted OVA323–339peptide were used to study the effects of estradiol and PAMP on antigen presentation of OVA by uterine epithelial (EC) and stromal cells as well as vaginal cells to OVA specific memory-T cells. Results: Estradiol inhibited antigen presentation of OVA by uterine EC, uterine stromal cells and vaginal cells to OVA specific memory-T cells. When ovariectomized animals were treated with estradiol for 1 or 3 days, antigen presentation decreased by 20–80%. In contrast, incubation with TLR agonists increased antigen presentation by EC (Poly (I:C), Pam3Cys), stromal cells (PGN, Pam3Cys) and vaginal cells (LPS, Pam3Cys). Analysis of mRNA expression by real time RT-PCR indicated that estradiol inhibited CD40, CD80/86 and class II in the uterus and vagina. In contrast, stimulation of antigen presentation by PAMP did not correlate with changes in costimulatory molecule mRNA expression. Conclusions: These results indicate that APC in the uterus and vagina are responsive to estradiol, which inhibits antigen presentation and costimulatory molecule expression. These findings suggest that whereas APC in the uterus and vagina respond to TLR agonists with increased antigen presentation, which initiates an adaptive immune response, their effects appear to be at levels other than the expression of costimulatory molecules. Acknowledgement: Supported by AI-13541 from NIH. [ABSTRACT FROM AUTHOR] |
|
Copyright of American Journal of Reproductive Immunology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
Full Text Finder