TY - JOUR

T1 - Preformed purified peptide/major histocompatibility class I complexes are potent stimulators of class I-restricted T cell hybridomas

AU - Stryhn, A

AU - Pedersen, L O

AU - Ortiz-Navarrete, V

AU - Buus, S

N1 - Keywords: Amino Acid Sequence; Animals; Antigen Presentation; Antigens, CD8; Flow Cytometry; Histocompatibility Antigens Class I; Hybridomas; Influenza A virus; Latex; Mice; Mice, Inbred Strains; Molecular Sequence Data; Peptides; T-Lymphocytes

PY - 1994

Y1 - 1994

N2 - A panel of antigen-specific, major histocompatibility complex class I-restricted T cell hybridomas has been generated to examine the capacity of peptide/class I complexes to stimulate T cells at the molecular level. Peptide/class I complexes were generated in detergent solution, purified and quantitated. Latex particles were subsequently coated with known amounts of preformed complexes and used to stimulate the T cell hybridomas. Stimulation was specific, i.e. only the appropriate peptide/class I combination were stimulatory, and quite sensitive, i.e. as little as 300 complexes per bead could be detected by the T cells. Preformed complexes were about 500,000 times more potent than free peptide in terms of T cell stimulation, demonstrating the physiological relevancy of the biochemically generated complexes. Surprisingly, the majority (including the most sensitive of the hybridomas) had lost CD8 expression, suggesting that antigen-specific stimulation of class I-restricted T cell hybridomas, as assessed by IL-2 release, does not depend on CD8.

AB - A panel of antigen-specific, major histocompatibility complex class I-restricted T cell hybridomas has been generated to examine the capacity of peptide/class I complexes to stimulate T cells at the molecular level. Peptide/class I complexes were generated in detergent solution, purified and quantitated. Latex particles were subsequently coated with known amounts of preformed complexes and used to stimulate the T cell hybridomas. Stimulation was specific, i.e. only the appropriate peptide/class I combination were stimulatory, and quite sensitive, i.e. as little as 300 complexes per bead could be detected by the T cells. Preformed complexes were about 500,000 times more potent than free peptide in terms of T cell stimulation, demonstrating the physiological relevancy of the biochemically generated complexes. Surprisingly, the majority (including the most sensitive of the hybridomas) had lost CD8 expression, suggesting that antigen-specific stimulation of class I-restricted T cell hybridomas, as assessed by IL-2 release, does not depend on CD8.

M3 - Journal article

C2 - 8206101

VL - 24

SP - 1404

EP - 1409

JO - European Journal of Immunology

JF - European Journal of Immunology

SN - 0014-2980

IS - 6

ER -