CD8 T cells express randomly selected KIRs with distinct specificities compared with NK cells

CD8 T cells express randomly selected KIRs with distinct specificities compared with NK cells.

Epistatic interactions between killer cell immunoglobulin-like receptors (KIRs) and their cognate HLA class I ligands have important implications for reproductive success, antiviral immunity, susceptibility to autoimmune conditions and cancer, as well as for graft-versus-leukemia reactions in settings of allogeneic stem cell transplantation. Although CD8 T cells are known to acquire KIRs when m...

Canine CD8 T cells showing NK cytotoxic activity express mRNAs for NK cell-associated surface molecules.

Natural killer (NK) cells have been considered to be a group of lymphocytes lacking clonally distributed receptors for antigens typical of T cells and B cells. In some mammalian species, including humans, a subpopulation of CD8(+) peripheral blood lymphocytes (PBLs) exhibits NK activity. This NK subpopulation has not been well characterized in mammals and its characterization is particularly po...

Development of Peptide-Selected CD8 T Cells

CD26+ Cord Blood Mononuclear Cells Significantly Produce B, T, and NK Cells

Background: Umbilical cord blood (UCB) is an alternative source of hematopoietic stem cell transplantation (HSCT), used in Leukemia treatment. CD26+ cells, a fraction of CD34 positive cells, are a major population of UCB cells which negatively regulate the in vivo homing and engraftment of HSCs. CD26 is highly expressed in various cells such as HSCs, immune cells, fibroblasts, and epithelial ce...

Comparison between interleukine-17 levels by NK-T cells in patients with chronic hepatitis C and healthy individuals

Background and Aims: Natural killer T (NKT) cells have been suggested to play critical roles in a wide range of immune responses especially against hepatotropic pathogens such as hepatitis C virus (HCV). In  the  present  study,  we  investigated  the  status  of  NKT  cells  by producing interleukin-17 cytokine in  peripheral  bl...