Th1 Cytokine-Secreting Recombinant Mycobacterium bovis Bacillus Calmette-Guérin and Prospective Use in Immunotherapy of Bladder Cancer

Intravesical instillation of Mycobacterium bovis bacillus Calmette-Guérin (BCG) has been used for treating bladder cancer for 3 decades. However, BCG therapy is ineffective in approximately 30–40% of cases. Since evidence supports the T helper type 1 (Th1) response to be essential in BCG-induced tum...

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Main Authors: Yi Luo, Jonathan Henning, Michael A. O'Donnell
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:Clinical and Developmental Immunology
Online Access:http://dx.doi.org/10.1155/2011/728930
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author Yi Luo
Jonathan Henning
Michael A. O'Donnell
author_facet Yi Luo
Jonathan Henning
Michael A. O'Donnell
author_sort Yi Luo
collection DOAJ
description Intravesical instillation of Mycobacterium bovis bacillus Calmette-Guérin (BCG) has been used for treating bladder cancer for 3 decades. However, BCG therapy is ineffective in approximately 30–40% of cases. Since evidence supports the T helper type 1 (Th1) response to be essential in BCG-induced tumor destruction, studies have focused on enhancing BCG induction of Th1 immune responses. Although BCG in combination with Th1 cytokines (e.g., interferon-α) has demonstrated improved efficacy, combination therapy requires multiple applications and a large quantity of cytokines. On the other hand, genetic manipulation of BCG to secrete Th1 cytokines continues to be pursued with considerable interest. To date, a number of recombinant BCG (rBCG) strains capable of secreting functional Th1 cytokines have been developed and demonstrated to be superior to BCG. This paper discusses current rBCG research, concerns, and future directions with an intention to inspire the development of this very promising immunotherapeutic modality for bladder cancer.
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spelling doaj-art-e3491c6dee4a4ba1b55af7f89eee8ebd2025-02-03T01:30:12ZengWileyClinical and Developmental Immunology1740-25221740-25302011-01-01201110.1155/2011/728930728930Th1 Cytokine-Secreting Recombinant Mycobacterium bovis Bacillus Calmette-Guérin and Prospective Use in Immunotherapy of Bladder CancerYi Luo0Jonathan Henning1Michael A. O'Donnell2Department of Urology, University of Iowa, 375 Newton Road, 3202 MERF, Iowa City, IA 52242, USADepartment of Urology, University of Iowa, 375 Newton Road, 3202 MERF, Iowa City, IA 52242, USADepartment of Urology, University of Iowa, 375 Newton Road, 3202 MERF, Iowa City, IA 52242, USAIntravesical instillation of Mycobacterium bovis bacillus Calmette-Guérin (BCG) has been used for treating bladder cancer for 3 decades. However, BCG therapy is ineffective in approximately 30–40% of cases. Since evidence supports the T helper type 1 (Th1) response to be essential in BCG-induced tumor destruction, studies have focused on enhancing BCG induction of Th1 immune responses. Although BCG in combination with Th1 cytokines (e.g., interferon-α) has demonstrated improved efficacy, combination therapy requires multiple applications and a large quantity of cytokines. On the other hand, genetic manipulation of BCG to secrete Th1 cytokines continues to be pursued with considerable interest. To date, a number of recombinant BCG (rBCG) strains capable of secreting functional Th1 cytokines have been developed and demonstrated to be superior to BCG. This paper discusses current rBCG research, concerns, and future directions with an intention to inspire the development of this very promising immunotherapeutic modality for bladder cancer.http://dx.doi.org/10.1155/2011/728930
spellingShingle Yi Luo
Jonathan Henning
Michael A. O'Donnell
Th1 Cytokine-Secreting Recombinant Mycobacterium bovis Bacillus Calmette-Guérin and Prospective Use in Immunotherapy of Bladder Cancer
Clinical and Developmental Immunology
title Th1 Cytokine-Secreting Recombinant Mycobacterium bovis Bacillus Calmette-Guérin and Prospective Use in Immunotherapy of Bladder Cancer
title_full Th1 Cytokine-Secreting Recombinant Mycobacterium bovis Bacillus Calmette-Guérin and Prospective Use in Immunotherapy of Bladder Cancer
title_fullStr Th1 Cytokine-Secreting Recombinant Mycobacterium bovis Bacillus Calmette-Guérin and Prospective Use in Immunotherapy of Bladder Cancer
title_full_unstemmed Th1 Cytokine-Secreting Recombinant Mycobacterium bovis Bacillus Calmette-Guérin and Prospective Use in Immunotherapy of Bladder Cancer
title_short Th1 Cytokine-Secreting Recombinant Mycobacterium bovis Bacillus Calmette-Guérin and Prospective Use in Immunotherapy of Bladder Cancer
title_sort th1 cytokine secreting recombinant mycobacterium bovis bacillus calmette guerin and prospective use in immunotherapy of bladder cancer
url http://dx.doi.org/10.1155/2011/728930
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AT jonathanhenning th1cytokinesecretingrecombinantmycobacteriumbovisbacilluscalmetteguerinandprospectiveuseinimmunotherapyofbladdercancer
AT michaelaodonnell th1cytokinesecretingrecombinantmycobacteriumbovisbacilluscalmetteguerinandprospectiveuseinimmunotherapyofbladdercancer