Murine bladder carcinoma cells present antigen to BCG-specific CD4+ T-cells.

Publication/Presentation Date

8-1-1992

Abstract

Intravesical administration of Bacillus Calmette-Guérin (BCG) is the most effective therapy for superficial transitional cell carcinoma of the bladder although its mechanism of action is not known. To determine if bladder tumors are capable of antigen presentation and thus might interact directly with BCG-specific T-cells, we studied the murine bladder tumor MB49. MB49 (MHC Class II negative) (IA-), when induced to express IA with interferon, presented BCG to specific CD4+ T-cells obtained from bladder-draining lymph nodes following intravesical BCG administration. This interaction resulted in antigen- and IA-dependent interleukin 2 and tumor necrosis factor production. Interferon also induced MB49 IA expression in vivo. This first demonstration of antigen presentation by epithelial tumors supports new approaches to immunotherapy of these malignancies.

Volume

52

Issue

15

First Page

4286

Last Page

4290

ISSN

0008-5472

Disciplines

Business Administration, Management, and Operations | Health and Medical Administration | Management Sciences and Quantitative Methods

PubMedID

1638541

Department(s)

Administration and Leadership

Document Type

Article

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