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Glucosaminylmuramyldipeptide-induced changes in phenotype of melanoma cells result in their increased lysis by peripheral blood cells

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Flow cytometry was used to show that biologically active N-acetylglucosamine-containing muramylpeptides (GMPs) induced in vitro dose-dependent increase in the expression of tumor-associated antigens (TAAs) characteristic for colon and mammary gland carcinomas, melanoma and lung adenocarcinoma. Forty to two hundred percent enhancement in TAA-expressing cells was observed after 18-48 h incubation with GMPs. In contrast, MHC class I antigen expression was not altered. Using MTT and chromium-release assays, melanoma cells treated in vitro with GMDP were shown to be more susceptible to killing by peripheral blood cells of healthy donors than non-treated cells. Fractionation of blood cells revealed that platelets were responsible for this effect.
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Document Type: Research Article

Affiliations: MM SHEMYAKIN INST BIOORGAN CHEM,MOSCOW 117871,RUSSIA. RUSSIAN ACAD MED SCI,CTR CANC RES,MOSCOW 115478,RUSSIA.

Publication date: November 1, 1996

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  • The International Journal of Oncology provides an international forum for the publication of the latest, cutting-edge research in the broad area of oncology and cancer treatment. The journal accepts original high quality works and reviews on all aspects of oncology research including carcinogenesis, metastasis, epidemiology, chemotherapy and viral oncology. Through fair and efficient peer review, the journal is dedicated to publishing top tier research in the field, offering authors rapid publication as well as high standards of copy-editing and production. The International Journal of Oncology is published on a monthly basis in both print and early online.
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