Biomaterial Database

Correlation of differences in antigenicity of four 3-methyl-cholanthrene-induced tumors in syngeneic mice with the susceptibility of tumors to an immunopotentiator, PS-K. 1978

S Abe, and M Yamazaki, and D Mizuno

Eleven syngeneic tumors were induced by 3-methylcholanthrene in DDD mice. Their antigenicity in vivo was examined by measuring growth inhibition of transplanted tumors in mice immunized by implanting tumors into their tail and then cutting off the tail. Four tumors with different antigenicity were selected from them for study. The growth-suppressive effect of an immunotherapeutic agent, PS-K, on the four tumors was examined. The growth of highly antigenic tumors in mice was inhibited by PS-K, but that of weakly antigenic tumors was not, and a close correlation was found between the antigenicity of tumors and the antitumor activity of PS-K against them. No similar correlation was found between their antigenicity and their sensitivity to a mitotic poison, 6-mercaptopurine. These results suggest that the antitumor effect of an immunopotentiator depends greatly on the antigenicity of tumors.

UI	MeSH Term	Description	Entries
D007114	Immunization	Deliberate stimulation of the host's immune response. ACTIVE IMMUNIZATION involves administration of ANTIGENS or IMMUNOLOGIC ADJUVANTS. PASSIVE IMMUNIZATION involves administration of IMMUNE SERA or LYMPHOCYTES or their extracts (e.g., transfer factor, immune RNA) or transplantation of immunocompetent cell producing tissue (thymus or bone marrow).	Immunologic Stimulation,Immunostimulation,Sensitization, Immunologic,Variolation,Immunologic Sensitization,Immunological Stimulation,Sensitization, Immunological,Stimulation, Immunologic,Immunizations,Immunological Sensitization,Immunological Sensitizations,Immunological Stimulations,Sensitizations, Immunological,Stimulation, Immunological,Stimulations, Immunological,Variolations
D008297	Male		Males
D008748	Methylcholanthrene	A carcinogen that is often used in experimental cancer studies.	20-Methylcholanthrene,3-Methylcholanthrene,20 Methylcholanthrene,3 Methylcholanthrene
D009368	Neoplasm Transplantation	Experimental transplantation of neoplasms in laboratory animals for research purposes.	Transplantation, Neoplasm,Neoplasm Transplantations,Transplantations, Neoplasm
D009374	Neoplasms, Experimental	Experimentally induced new abnormal growth of TISSUES in animals to provide models for studying human neoplasms.	Experimental Neoplasms,Experimental Neoplasm,Neoplasm, Experimental
D011509	Proteoglycans	Glycoproteins which have a very high polysaccharide content.	Proteoglycan,Proteoglycan Type H
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D000903	Antibiotics, Antineoplastic	Chemical substances, produced by microorganisms, inhibiting or preventing the proliferation of neoplasms.	Antineoplastic Antibiotics,Cytotoxic Antibiotics,Antibiotics, Cytotoxic
D000951	Antigens, Neoplasm	Proteins, glycoprotein, or lipoprotein moieties on surfaces of tumor cells that are usually identified by monoclonal antibodies. Many of these are of either embryonic or viral origin.	Neoplasm Antigens,Tumor Antigen,Tumor Antigens,Antigen, Tumor,Antigens, Tumor
D001487	Basidiomycota	A phylum of fungi that produce their sexual spores (basidiospores) on the outside of the basidium. It includes forms commonly known as mushrooms, boletes, puffballs, earthstars, stinkhorns, bird's-nest fungi, jelly fungi, bracket or shelf fungi, and rust and smut fungi.	Basidiomycetes,Basidiomycete,Basidiomycotas