0000000000025293

AUTHOR

M. Hauer

showing 3 related works from this author

A p16INK4a-insensitive CDK4 mutant targeted by cytolytic T lymphocytes in a human melanoma.

1995

A mutated cyclin-dependent kinase 4 (CDK4) was identified as a tumor-specific antigen recognized by HLA-A2. 1-restricted autologous cytolytic T lymphocytes (CTLs) in a human melanoma. The mutated CDK4 allele was present in autologous cultured melanoma cells and metastasis tissue, but not in the patient's lymphocytes. The mutation, an arginine-to-cysteine exchange at residue 24, was part of the CDK4 peptide recognized by CTLs and prevented binding of the CDK4 inhibitor p16INK4a, but not of p21 or of p27KIP1. The same mutation was found in one additional melanoma among 28 melanomas analyzed. These results suggest that mutation of CDK4 can create a tumor-specific antigen and can disrupt the ce…

Cyclin-Dependent Kinase Inhibitor p21Tumor suppressor geneMutantMolecular Sequence DataCell Cycle ProteinsBiologyProtein Serine-Threonine Kinasesmedicine.disease_causeTransfectionPolymerase Chain ReactionMetastasisCell LineAntigenCyclinsProto-Oncogene ProteinsHLA-A2 AntigenmedicineTumor Cells CulturedAnimalsHumansPoint MutationAmino Acid SequenceCloning MolecularneoplasmsMelanomaCyclin-Dependent Kinase Inhibitor p16Cyclin-Dependent Kinase Inhibitor p15MutationMultidisciplinaryintegumentary systemBase SequenceMelanomaTumor Suppressor ProteinsCyclin-Dependent Kinase 4Cell cyclemedicine.diseaseCyclin-Dependent KinasesCytolysisCancer researchCarrier ProteinsMicrotubule-Associated ProteinsCyclin-Dependent Kinase Inhibitor p27T-Lymphocytes CytotoxicScience (New York, N.Y.)
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Analysis of antigens recognized on human melanoma cells by A2-restricted cytolytic t lymphocytes (CTL)

1993

We have pursued our analysis of potential tumor-rejection antigens recognized on human melanoma by autologous cytolytic T lymphocytes (CTL). We reported previously that 3 distinct antigens (A,B,C) were recognized on melanoma cell line SK29-MEL in association with HLA-A2. Selection for melanoma-cell variants resistant to anti-A CTL revealed that antigen A consists of at least 2 determinants (Aa, Ab) which can be lost separately. Genetic linkage between Aa and Ab was suggested by concomitant loss of Aa and Ab in an immunoselected tumor-cell variant. This variant was also resistant to an autologous CTL clone restricted by HLA-B45, indicating that this CTL may also recognize a determinant of an…

Cancer ResearchClone (cell biology)T lymphocyteBiologyCytotoxicity Tests ImmunologicTransfectionVirologyEpitopesCytolysisCTL*OncologyLytic cycleAntigenAntigens NeoplasmHLA-B AntigensHLA-A2 AntigenGene expressionImmunologyTumor Cells CulturedHumansCloning MolecularCytotoxicityMelanomaT-Lymphocytes CytotoxicInternational Journal of Cancer
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Definition of discrete signals involved in human T-cell activation

1986

Abstract Mitogenic activities of monoclonal antibodies directed at denned receptor structures expressed on the surface of mature human T lymphocytes were employed to study, in detail, signals involved in primary T-cell activation. Based on differential requirements for stimulation, two discrete pathways of human T-cell activation can be defined: the antigen-induced mode of activation initiated through the Ti-T3 antigen-receptor complex and an alternative pathway which can be triggered by monoclonal antibodies directed at the T11 glycoprotein. Perhaps more importantly, the approach taken here allows the definition of stable intermediate cellular stages within the activation cascade and, thus…

Adultmedicine.drug_classT-LymphocytesT cellImmunologyReceptors Antigen T-CellAntigen-Presenting CellsStimulationBiologyLymphocyte ActivationMonoclonal antibodyMonocytesmedicineHumansReceptorMolecular Biologychemistry.chemical_classificationAntibodies MonoclonalCell biologySignallingmedicine.anatomical_structurechemistryAlternative complement pathwayInterleukin-2GlycoproteinInterleukin-1Molecular Immunology
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