Background: Systemic lupus erythematosus (SLE) is an autoimmune disease that is characterized by T-cells imbalance. There are ongoing controversies about the role of specific T-helper cell subsets and their cytokines. The study aimed to confirm the disturbance of Th17/Treg ratio in SLE patients. Methods: Subjects were SLE patients who met the American College of Rheumatology 1997 criteria. Dis...

One of the essential protection mechanisms of immune system is Treg cells which play an important role in maintenance ofimmune homeostasis. However, they may also inhibit immune functions against tumor cells. It has been reported that Treg cellsare increased in patients suffering from different types of cancer. Increased number of Treg cells has been shown in tumor lymphnodes, peripheral blood,...

Objective(s): This study aimed to investigate the role and the possible mechanisms involved in the immunoregulation of experimental periodontitis by Th17/Treg. Materials and Methods: Experimental periodontitis was established by silk thread ligation with Porphyromonasgingivalis daubing in the bilateral maxillary second molar of Male Sprague-Dawley (SD) rats. Alveolar bones were scanned by Micro...

Objective(s): Here we investigated the regulation of Th17 and Treg cells in orthodontic tooth movement during periodontal inflammation.Materials and Methods: Fifty-six SD rats were divided into a control (24 rats) and a tooth movement group during the recovery stage of periodontitis (RM group, 32 rats). Periodontitis was established by s...

Background: The development of a maternal immune response to fetal antigens and deficiency in regulatory T-cells (Tregs) may lead to preeclampsia. A plausible explanation for the reduced Treg cell function in women with preeclampsia is the presence of exhausted Treg cells which express CD279 or programmed cell death receptor-1 (PD-1), a negative regulatory molecule associated w...

background: ovarian cancer is the fifth leading cause of death from malignancy in women. cd4 +cd25+foxp3+ regulatory t (treg) cells are a subset of t lymphocytes with great inhibitory impact on immune response. objectives: to investigate the percentage of cd4 +cd25+foxp3+ regulatory t cells in the peripheral blood of the iranian patients with epithelial ovarian cancer compared to healthy women ...

background: lack of sufficient information on the mechanism of plasma exchange (pe) therapy in multiple sclerosis (ms), has limited this treatment to individual patients with severe relapses who have been refractory to other treatments. this is while pe is used very successfully as a first-line standard treatment in many other neuro-immune disorders. recent data suggest that treg/th17 counterba...