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Qian BJ, Yan F, Li N, Liu QL, Lin YH, Liu CM, Luo YP, Guo F, Li HZ. MTDH/AEG-1-based DNA vaccine suppresses lung metastasis and enhances chemosensitivity to doxorubicin in breast cancer. Cancer Immunol Immunother 2011; 60:883-93. [PMID: 21400023 PMCID: PMC11028919 DOI: 10.1007/s00262-011-0997-3] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2010] [Accepted: 02/14/2011] [Indexed: 01/22/2023]
Abstract
The gene MTDH/AEG-1 is overexpressed in more than 40% of breast cancer patients, and it is associated with poor clinical outcomes. Previous studies have indicated that MTDH/AEG-1 could promote metastatic lung-seeding and enhance chemoresistance. Therefore, MTDH/AEG-1 could be a candidate target against breast cancer lung metastasis. We demonstrated that MTDH/AEG-1-based DNA vaccine, delivered by attenuated Salmonella typhimurium, could evoke strong CD8(+) cytotoxic-T-cell mediated immune responses against breast cancer. This vaccine showed anti-tumor growth and metastasis efficacy in a prophylactic setting. Importantly, in a therapeutic model, MTDH/AEG-1 vaccine was proved to increase chemosensitivity to doxorubicin and inhibit breast cancer lung metastasis. This vaccine could also prolong the life span of tumor-bearing mice without significant side effects in vivo. These results suggested that this novel DNA vaccine was effective in the inhibition of breast cancer growth and metastasis, and this vaccine in combination with chemotherapies offered new strategies for the clinical therapeutics of breast cancer metastasis.
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MESH Headings
- Animals
- Cancer Vaccines/genetics
- Cancer Vaccines/immunology
- Cancer Vaccines/pharmacology
- Cell Adhesion Molecules/genetics
- Cell Adhesion Molecules/immunology
- Cell Line, Tumor
- Disease Models, Animal
- Doxorubicin/pharmacology
- Gene Expression Profiling
- Immunohistochemistry
- Lung Neoplasms/immunology
- Lung Neoplasms/secondary
- Lung Neoplasms/therapy
- Mammary Neoplasms, Experimental/genetics
- Mammary Neoplasms, Experimental/immunology
- Mammary Neoplasms, Experimental/pathology
- Mammary Neoplasms, Experimental/therapy
- Membrane Proteins
- Mice
- Mice, Inbred BALB C
- RNA-Binding Proteins
- Vaccines, DNA/genetics
- Vaccines, DNA/immunology
- Vaccines, DNA/pharmacology
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Affiliation(s)
- Ben-Jiang Qian
- Institute of Ningde Urological Research and Department of Urology, Affiliated Mindong Hospital of Fujian Medical University, No. 89, Heshan Road, Fu’an, Fujian, 355000 China
| | - Fei Yan
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences of Chinese Academy of Sciences-Shanghai Jiao-Tong University School of Medicine (SJTU-SM), No. 225, South Chongqing Road, Shanghai, 200025 China
| | - Na Li
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences of Chinese Academy of Sciences-Shanghai Jiao-Tong University School of Medicine (SJTU-SM), No. 225, South Chongqing Road, Shanghai, 200025 China
| | - Qiao-Ling Liu
- Center for Nanomedicine, Shanghai Advanced Research Institute of Chinese Academy of Sciences, Shanghai, China
| | - Yi-Hui Lin
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences of Chinese Academy of Sciences-Shanghai Jiao-Tong University School of Medicine (SJTU-SM), No. 225, South Chongqing Road, Shanghai, 200025 China
| | - Chang-Ming Liu
- Institute of Ningde Urological Research and Department of Urology, Affiliated Mindong Hospital of Fujian Medical University, No. 89, Heshan Road, Fu’an, Fujian, 355000 China
| | - Yun-Ping Luo
- Department of Immunology, School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Fang Guo
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences of Chinese Academy of Sciences-Shanghai Jiao-Tong University School of Medicine (SJTU-SM), No. 225, South Chongqing Road, Shanghai, 200025 China
- Center for Nanomedicine, Shanghai Advanced Research Institute of Chinese Academy of Sciences, Shanghai, China
| | - Hui-Zhang Li
- Institute of Ningde Urological Research and Department of Urology, Affiliated Mindong Hospital of Fujian Medical University, No. 89, Heshan Road, Fu’an, Fujian, 355000 China
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