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. 1988 Sep 9;54(6):777-85.
doi: 10.1016/s0092-8674(88)91043-4.

Introduction of soluble protein into the class I pathway of antigen processing and presentation

M W Moore  1 , F R Carbone, M J Bevan
Affiliations

Introduction of soluble protein into the class I pathway of antigen processing and presentation

M W Moore et al. Cell. .

Abstract

In order to investigate how peptides associate with class I major histocompatibility complex (MHC) glycoproteins intracellularly, we generated cytotoxic T lymphocytes (CTL) specific for a readily available soluble protein in association with class I. C57BL/6 (H-2b) mice immunized against a syngeneic tumor cell transfected with chicken ovalbumin (OVA) cDNA gave rise to H-2Kb-restricted CTL specific for the OVA258-276 peptide. This synthetic peptide and CNBr fragments of OVA (242-285 and 242-273) were able to target H-2b cells for lysis by the CTL in a 3 hr assay. Cells incubated with native OVA for up to 24 hr did not become sensitized for recognition and lysis. However, when OVA was introduced directly into the cytoplasm of cells by the osmotic lysis of pinosomes, the Kb restricted determinant formed readily.

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