Targeting p53 as a general tumor antigen.

Abstract:

:A major barrier to the design of immunotherapeutics and vaccines for cancer is the idiosyncratic nature of many tumor antigens and the possibility that T cells may be tolerant of broadly distributed antigens. We have devised an experimental strategy that exploits species differences in protein sequences to circumvent tolerance of high-affinity T cells. HLA transgenic mice were used to obtain cytotoxic T lymphocytes specific for peptides from the human p53 tumor-suppressor molecule presented in association with HLA-A2.1. Although such p53-specific cytotoxic T cells did not recognize nontransformed human cells, they were able to lyse a wide variety of human tumor cells lines, thus confirming the existence of broadly distributed determinants that may serve as targets for immunotherapy.

authors

Theobald M,Biggs J,Dittmer D,Levine AJ,Sherman LA

doi

10.1073/pnas.92.26.11993

subject

Has Abstract

pub_date

1995-12-19 00:00:00

pages

11993-7

issue

26

eissn

0027-8424

issn

1091-6490

journal_volume

92

pub_type

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