Home
Search
Study Topics
Glossary
|
|
|
|
|
|
Sponsored by: |
National Taiwan University Hospital |
---|---|
Information provided by: | National Taiwan University Hospital |
ClinicalTrials.gov Identifier: | NCT00173758 |
Human decidual tissue appears to play an important role not only in nurturing the implanted embryos, but also in preventing its rejection by the maternal immune system. Insight into the maternal immunologic modulations during implantation is our main research interests. Our previous studies have shown that most lymphocytes in deciduae are natural killer cells. However, their phenotype is CD16-CD56+CD3-, which is different from that of peripheral natural killer cells. More importantly their cytotoxic activity is decreased and they can’t attack the cytotrophoblasts. All of these contributes to no rejection developing at the fetomaternal interface and are related to success of pregnancy.
In 1994, a new cytokine IL-15 was first discovered, which could act on the IL-15 and IL-2 receptors to stimulate the activation and propagation of the lymphocytes. Let us want to study the critical role of IL-15 in the endometrial lymphocytes. In this study, we try to analyze the distribution of IL-15 and its receptor in deciduae. We will clarify whether the IL-15 receptor exists on the decidual natural killer cells and it is regulated by sexual hormones or not and whether their cytotoxic activity will change after IL-15 action. Furthermore, we will demonstrated whether the IL-15 receptor exists on the embryo cells and IL-15 might improve the quality of the embryo. We also design a co-culture system of the embryo and autologous endometrial cells to improve the success rate of in vitro fertilization.
Condition | Intervention |
---|---|
Pregnancy Infertility |
Procedure: co-culture of embryos and endometrial cells |
Study Type: | Interventional |
Study Design: | Treatment, Randomized, Single Blind, Placebo Control, Parallel Assignment, Safety/Efficacy Study |
Official Title: | The Expression of IL-15 and Its Receptor in Uterine NK Cells and Clinical Applications |
Estimated Enrollment: | 30 |
Study Start Date: | September 2005 |
The expression of IL-15 and IL-15Rα in the lymphocytes of peripheral blood and decidua during early pregnancy
Functional tests of CD4+ cells, CD8+ cells and NK cells
The expression of IL-15 and IL-15Rα in the human embryo before and after co-cultured with autologous endometrium
Ages Eligible for Study: | 20 Years to 40 Years |
Genders Eligible for Study: | Female |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
Exclusion Criteria:
Contact: Kuang-Han Chao, M.D. | 886-2-2312-3456 ext 5539 | khchao@ntumc.org |
Taiwan | |
National Taiwan University Hospital | Recruiting |
Taipei, Taiwan, 100 | |
Contact: Kuang-Han Chao, M.D. 886-2-2312-3456 ext 5539 khchao@ntumc.org | |
Principal Investigator: Kuang-Han Chao, M.D. |
Principal Investigator: | Kuang-Han Chao, M.D. | Department of Obstetrics and Gynecology, National Taiwan University Hospital |
Study ID Numbers: | 9361701276 |
Study First Received: | September 13, 2005 |
Last Updated: | December 20, 2005 |
ClinicalTrials.gov Identifier: | NCT00173758 |
Health Authority: | Taiwan: Department of Health |
IL-15 IL-15 receptor decidual natural killer cells endometrium |
Genital Diseases, Female Infertility Genital Diseases, Male |