Background: Th1 cells preferentially express CXCR3, CCR5 and CCR6, while CCR3 and CCR4 are predominantly expressed by Th2 cell subsets. Multiple Sclerosis (MS) is a Th1 cell-dependant chronic inflammatory disease of the central nervous system, and immunomudolatory cytokines could alter the chemokine expression pattern of these lymphocyte subsets. Objective: This study was performed to measure c...

Bcl6 plays a role in the generation and maintenance of memory CD8(+) T cells. We analyzed here a role for Bcl6 in the generation of long-term memory CD4(+) T cells. Naive CD45RB(+) CD4(+) T cells from Bcl6-deficient DO11.10 (KJ1.26(+)) transgenic mice were transferred into BALB/c mice and immunized with ovalbumin peptide and LPS. Long-term memory KJ1.26(+) CD4(+) T cells from wild-type mice wer...

Abstract In both humans and NOD mice, type 1 diabetes (T1D) develops from the autoimmune destruction of pancreatic beta cells by T-cells. Interactions between helper CD4 +and cytotoxic CD8 +T-cells are essential for T1D development in mice. Previous work has indicated that pathogenic T-cells arise deleterious interactions relatively common genes which regulate aspects T-cell activation/effector...

Background: Patients with rheumatoid arthritis (RA) suffer from wide ranges of autoimmune reactions in joints. The mechanism of which is generally unknown and maybe associated with Treg deregulation. Objective: To compare the frequency of nTregs in peripheral blood of patients with active rheumatoid disease with healthy individuals. Methods: Twenty five newly diagnosed patients with active RA d...

Although CD4+ T cells form a major subset of TCRab T cells, only a small number of TCRgd T cells express CD4. Factors contributing to the down-regulation of CD4+ TCRgd T cells have not been identi®ed. The CD5 molecule is expressed on most TCRgd T cells in the spleen, whereas only a few intestinal intraepithelial TCRgd T cells express this molecule in wild-type mice and TCRb mutant (b±/±) mice. ...

background: atherosclerosis is a multifactorial disorder with chronic inflammatory conditions in which immune cells play a significant role in its pathogenic process. regulatory t cells (treg), as a part of immune system, are involved in controlling autoimmune and inflammatory diseases. quantitative and/or functional alteration of tregs has been shown to play an atheroprotective role and may al...

CD4(+)CD25(+) T cells are critical mediators of peripheral immune tolerance. However, many developmental and functional characteristics of these cells are unknown, and knowledge of human regulatory T cells is particularly limited. To better understand how human CD4(+)CD25(+) T cells develop and function, we examined the diversity of CD4(+)CD25(+) and CD4(+)CD25(-) T cell repertoires in both thy...