Cellular immunity to encephalitogenic peptide in tumour-bearing mice
| Autor: | W J Halliday, W K Yong |
|---|---|
| Rok vydání: | 1982 |
| Předmět: |
Cancer Research
Cellular immunity Encephalomyelitis Autoimmune Experimental Fibrosarcoma Encephalomyelitis Dose-Response Relationship Immunologic Peptide Mice Antigen In vivo medicine Animals Hypersensitivity Delayed chemistry.chemical_classification Immunity Cellular biology Macrophages Leukocyte Adherence Inhibition Test Myelin Basic Protein medicine.disease Molecular biology Myelin basic protein Transplantation Kinetics Oncology chemistry Immunology Mice Inbred CBA biology.protein Sarcoma Experimental Research Article |
| Zdroj: | British Journal of Cancer |
| ISSN: | 1532-1827 0007-0920 |
| DOI: | 10.1038/bjc.1982.117 |
| Popis: | Mice bearing a methylcholanthrene-induced tumour were tested for their cell mediated reactivity to the experimental allergic encephalomyelitis (EAE) peptide of human myelin basic protein (MBP) in the leucocyte adherence inhibition (LAI) test. Tested over a range of peptide concentrations, peritoneal cells (PC) from tumour-bearing mice exhibited optimal adherence inhibition at 640 ng/ml; PC from normal and parasite-infected mice were unreactive. The EAE peptide also stimulated PC from tumour-bearing mice in the E-rosette augmentation (ERA) test and in the macrophage migration inhibition (MMI) test. MMI appeared to be the most sensitive assay, in that significant reaction at peptide concentrations well below those giving significant LAI and ERA. LAI reactivity to the peptide was detected 5 days after tumour transplantation, and continued to be detectable even with very large tumours. In vitro assays were confirmed by demonstration of EAE peptide recognition in vivo, in tumour-bearing and tumour-excised mice, using the delayed-type hypersensitivity reaction. The present experiments demonstrate an antigenic determinant in murine tumours, similar to the well-characterized EAE peptide of human MBP, and establish an animal model for study and characterization of common tumour-associated antigens. |
| Databáze: | OpenAIRE |
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