期刊
AMERICAN JOURNAL OF REPRODUCTIVE IMMUNOLOGY
卷 56, 期 3, 页码 193-200出版社
BLACKWELL PUBLISHING
DOI: 10.1111/j.1600-0897.2006.00417.x
关键词
miscarriage; natural-killer cell; natural-killer-T cell; Th cytokine; topology
Problem The aim of this cohort study was to assess natural killer (NK) cell and natural killer T (NKT) cell populations and cytokine expressions of helper T (Th) and cytotoxic T (Tc) cells in the decidua of sporadic miscarriage (MS) and induced abortion (IA). Methods The deciduae were obtained from consecutive 40 women whose pregnancies ended in the first trimester MS, and the fetal chromosome karyotypes were analyzed. The cell populations were measured by flow cytometry. Results No significant differences in NK cell or NKT cell percentages were found among MS with normal chromosome karyotype (MSNK, n = 14), MS with abnormal karyotype (MSAK, n = 26) and IA (n = 14). Interferon (IFN)-gamma(+) cell percentage and interleukin (IL)-4(+)/tumor necrosis factor (TNF)-alpha(+) ratio of Th cells in MS groups were increased, while IL-4(+) cell percentage, IL-4(+)/IFN-gamma(+) and IL-4(+)/TNF-alpha(+) ratios of Tc cells in MS groups were decreased as compared with those in IA. No significant difference in these parameters between MSNK and MSAK was found. Conclusions These results suggested that Tc1 predominance existed in the decidua of MS. Th1 predominance was not found in MSNK.
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