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Yeast-based identification of prostate tumor antigens provides an effective vaccine platform


Jung, V; Fischer, E; Imig, J; Kleber, S; Nuber, N; Reinshagen, F; Kamradt, J; Grobholz, R; Knuth, A; Renner, C; Wadle, A (2010). Yeast-based identification of prostate tumor antigens provides an effective vaccine platform. Anticancer Research, 30(3):895-902.

Abstract

Background/Aim: To evaluate cancer/testis (CT) antigens as targets for immunotherapy or vaccine approaches in prostate cancer. PATIENTS AND METHODS: We investigated the antibody response in 181 patients with prostate cancer, 83 benign prostate hyperplasia (BPH) patients, and 39 healthy donors against 13 different CT antigens recombinantly expressed on yeast surface (RAYS) and compared the results to antigen expression in tumor tissue. We then used the yeast clone expressing the most promising antigen directly as a vaccine to elicit potent cellular immunity. RESULTS: The antibody response to NY-ESO-1 was more frequent (20%) and strong compared to other investigated antigens, and was associated with progressive disease. Interestingly, it was also detected in several BPH patients (9%). Feeding dendritic cells with NY-ESO-1-expressing yeast cells resulted in efficient HLA presentation and activation of specific CD3(+) T-cells. CONCLUSION: The RAYS approach offers a fast means of analyzing serological autoreacitvity in cancer patients and serves as an effective anticancer vaccine platform.

Abstract

Background/Aim: To evaluate cancer/testis (CT) antigens as targets for immunotherapy or vaccine approaches in prostate cancer. PATIENTS AND METHODS: We investigated the antibody response in 181 patients with prostate cancer, 83 benign prostate hyperplasia (BPH) patients, and 39 healthy donors against 13 different CT antigens recombinantly expressed on yeast surface (RAYS) and compared the results to antigen expression in tumor tissue. We then used the yeast clone expressing the most promising antigen directly as a vaccine to elicit potent cellular immunity. RESULTS: The antibody response to NY-ESO-1 was more frequent (20%) and strong compared to other investigated antigens, and was associated with progressive disease. Interestingly, it was also detected in several BPH patients (9%). Feeding dendritic cells with NY-ESO-1-expressing yeast cells resulted in efficient HLA presentation and activation of specific CD3(+) T-cells. CONCLUSION: The RAYS approach offers a fast means of analyzing serological autoreacitvity in cancer patients and serves as an effective anticancer vaccine platform.

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3 citations in Web of Science®
3 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Oncology
Dewey Decimal Classification:610 Medicine & health
Language:English
Date:March 2010
Deposited On:06 Jul 2010 21:53
Last Modified:07 Dec 2017 02:47
Publisher:International Institute of Anticancer Research
ISSN:0250-7005
PubMed ID:20393012

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