PMID: 7540657Jul 1, 1995Paper

GD2 oligosaccharide: target for cytotoxic T lymphocytes

The Journal of Experimental Medicine
X J Zhao, N K Cheung

Abstract

Carbohydrate antigens rarely provide target epitopes for cytotoxic T lymphocytes (CTL). Disialoganglioside GD2 is a glycolipid expressed at high levels in human tumors and a small group of murine lymphomas (EL4, RBL5, RMA, RMA-S, A13, and BALBRVE). Immunization of C57B1/6 mice with irradiated EL4 cells stimulated a specific CTL response and protected these animals from engraftment of EL4 lymphoma. The CTL activity resided in the CD4-CD8+ population, was dependent on T cell receptor alpha/beta, and was not removed by anti-natural killer cell immunoabsorption, but was restricted to GD2 and H-2b bearing targets. CTL activity could be completely inhibited by GD2-oligosaccharide-specific monoclonal antibodies and their F(ab')2 fragments, but not by immunoglobulin G3 myelomas or antibodies against GD3 or GM2. Soluble GD2 did not inhibit specific tumor lysis. RMA-S lymphoma cells (GD2+H-2b-TAP2 deficient) were resistant to GD2-specific CTL. Sialic acid-containing peptides eluted from EL4 lymphoma cells could (a) stabilize H-2 molecules on RMA-S cells and (b) sensitize them for GD2-specific CTL. Control peptides (derived from vesicular stomatitis virus nucleoprotein peptide and GD2-negative lymphomas) could also stabilize H-2 on RMA-S,...Continue Reading

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Citations

Dec 25, 2007·Cancer Immunology, Immunotherapy : CII·Assefa WondimuDorothee Herlyn
Jan 27, 2011·Cancer Immunology, Immunotherapy : CII·Soo-Kie KimPhilip O Livingston
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