Publisher Summary Studies of cytotoxicity by human lymphocytes revealed not only that
both allogeneic and syngeneic tumor cells were lysed in a non-MHC-restricted fashion, but …

Current evidence indicates that natural killer (NK) cells, which are large granular
lymphocytes that mediate non‐major histocompatibility complex (MHC)‐restricted …

The phenotype and functional activity of circulating T and natural killer (NK) cells was
investigated in a group of selected normal elderly donors in comparison with a group of …

Immunologic effects of progesterone are mediated by a protein named the progesterone-
induced blocking factor (PIBF), which inhibits NK activity and displays an antiabortive effect …

We describe a monoclonal antibody, WT-31, that reacted with all human T lymphocytes.
Electrophoretic analysis of the material reacting with WT-31 revealed that it precipitated …

Because alterations in natural killer (NK) activity in the perinatal period may be important in
the maintenance of a healthy pregnancy, we examined the mechanisms by which these …

PROBLEM: Due to the lack of classical HLA antigens on the trophoblast, fetal antigens are
possibly presented in a non major histocompatibility complex (MHC) restricted way …

Adhesions of lymphocytes, among themselves or with other cell types, are necessary for
most steps in immune responses including both induction and effector phases. Among …

Background/Aims: As chronic hepatitis C virus (HCV) infection is associated with impaired
natural killer (NK) cell cytotoxicity, we examined the phenotypes and perforin expression of …

Killer lymphocytes play a major role in host defense against tumors and infectious diseases.
Previously, we reported that delta‐9‐tetrahydrocannabinol (THC) and II‐hydroxy‐delta‐9 …