Changes in the Ratio of Tc1/Tc2 and Th1/Th2 Cells but Not in Subtypes of NK-Cells in Preeclampsia
نویسندگان
چکیده
It has been suggested that natural killer (NK) cell activity and Th1 immunity may be involved in the pathogenesis of preeclampsia. This study aimed to investigate the immunophenotypes of NK cells and type 1/type 2 immunity in both decidua and maternal peripheral blood between normal (n=11) and preeclamptic pregnant women (n=20) by flow cytometry. The results showed that no significant difference was observed between patients and controls by detecting CD56CD69 and CD56CD94 NK cells in both peripheral blood and decidua. Moreover, in preeclamptic patients, decreased percentages of Tc2 and Th2 cells and the increased ratios of Tc1/Tc2 were determined in both decidua and maternal peripheral blood. In addition, the ratio of Th1/Th2 in peripheral blood also increased. There was no significant difference of immunophenotypes of uNK cells between preeclampsia and normal pregnancy. Local decidua and systematic immunity did not correlate with each other. These results suggest that the type 1/type 2 immunity shifted to type 1 immunity including Th1 and Tc1 cells may contribute to the patho-genesis of preeclampsia.
منابع مشابه
IL-17 and IL-4 Producing CD8+ T Cells in Tumor Draining Lymph Nodes of Breast Cancer Patients: Positive Association with Tumor Progression
Background: CD8+ cytotoxic T lymphocytes have been recently divided based on their cytokine expression profile. Objective: To evaluate the percentages of CD8+ lymphocytes and their effector subsets including Tc1, Tc2 and Tc17 in the tumor draining lymph nodes (TDLNs) of patients with breast cancer. Methods: Single cell suspensions were obtained from TDLNs of 42 patients with breast cancer. Stai...
متن کاملP169: The Role of Lymphocytes in Spinal Cord Injury and Pain; T Helper Cells (TH1 and TH2 Cells)
Lymphocyte is one of the subtypes of white blood cell (WBC) in immune system. Lymphocytes contain T cells, natural killer cells , and B cells. They are the head type of cell found in lymph, which for this reason the name "lymphocyte". Lymphocytes can be recognized by their large nucleus. Infiltration of immune cells in the central nervous system (CNS) helps the start of chronic pain. ...
متن کاملTh1, Th2, Tc1 and Tc2 cells of patients with otolaryngological diseases
Cytokines are important regulatory mediators secreted by T cells and other immunoactive cells. Based on the cytokine synthesis patterns, CD4 T cells can often be classified into at least two populations with different immune regulatory functions. The Th1 cells, producing interleukin (IL)-2 and interferon (IFN)γ , are often associated with cell-mediated immune responses such as delayed type hype...
متن کاملDisparate cytotoxic activity of nickel-specific CD8+ and CD4+ T cell subsets against keratinocytes.
Allergic contact dermatitis (ACD) is the result of an exaggerated immune reaction to haptens mediated by skin-homing T cells, but the effector mechanisms responsible for the tissue damage are poorly understood. Here we studied the capacity of distinct subsets of hapten-specific T cells to induce apoptosis in autologous keratinocytes. Skin- and blood-derived nickel-specific CD8+ T cytotoxic 1 (T...
متن کاملStudy of the ratio of Treg/Th1 and Treg/Th2 lymphocytes in Hodgkin's lymphoma patients and its relationship with disease prognosis
Background and purpose: CD4+CD25+FOXP3+ regulatory T cells (CD4+CD25+FOXP3+ Tregs) are a group of T lymphocytes that play an important role in regulating immune system responses by suppressing the activity of other T cells and establishing homeostasis in the immune system. Th1 and Th2 cells are other groups of CD4+ cells that play important functions in inducing inflammatory immune responses. C...
متن کامل