T-cell effector functions: mechanisms for delivery of cytotoxicity and help.

Animals Antigens/immunology Antigens, Differentiation, T-Lymphocyte/immunology Cell Adhesion Cell Death Cytoplasmic Granules/metabolism Cytotoxicity, Immunologic Humans Lymphocyte Activation Membrane Glycoproteins Membrane Proteins/genetics,physiology Perforin Pore Forming Cytotoxic Proteins Receptors, Antigen, T-Cell/immunology Receptors, Interleukin-2/metabolism T-Lymphocyte Subsets/immunology T-Lymphocytes, Helper-Inducer/immunology T-Lymphocytes, Regulatory/immunology

Antigens Antigens, Differentiation, T-Lymphocyte Membrane Glycoproteins Membrane Proteins Pore Forming Cytotoxic Proteins Receptors, Antigen, T-Cell Receptors, Interleukin-2 Perforin