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Zhang R, Yuan F, Shu Y, Tian Y, Zhou B, Yi L, Zhang X, Ding Z, Xu H, Yang L. Personalized neoantigen-pulsed dendritic cell vaccines show superior immunogenicity to neoantigen-adjuvant vaccines in mouse tumor models. Cancer Immunol Immunother 2019; 69:135-145. [PMID: 31807878 PMCID: PMC6949210 DOI: 10.1007/s00262-019-02448-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 11/28/2019] [Indexed: 02/05/2023]
Abstract
Development of personalized cancer vaccines based on neoantigens has become a new direction in cancer immunotherapy. Two forms of cancer vaccines have been widely studied: tumor-associated antigen (including proteins, peptides, or tumor lysates)-pulsed dendritic cell (DC) vaccines and protein- or peptide-adjuvant vaccines. However, different immune modalities may produce different therapeutic effects and immune responses when the same antigen is used. Therefore, it is necessary to choose a more effective neoantigen vaccination method. In this study, we compared the differences in immune and anti-tumor effects between neoantigen-pulsed DC vaccines and neoantigen-adjuvant vaccines using murine lung carcinoma (LL2) candidate neoantigens. The enzyme-linked immunospot (ELISPOT) assay showed that 4/6 of the neoantigen-adjuvant vaccines and 6/6 of the neoantigen-pulsed DC vaccines induced strong T-cell immune responses. Also, 2/6 of the neoantigen-adjuvant vaccines and 5/6 of the neoantigen-pulsed DC vaccines exhibited potent anti-tumor effects. The results indicated that the neoantigen-pulsed DC vaccines were superior to the neoantigen-adjuvant vaccines in both activating immune responses and inhibiting tumor growth. Our fundings provide an experimental basis for the selection of immune modalities for the use of neoantigens in individualized tumor immunotherapies.
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Affiliation(s)
- Rui Zhang
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, No. 17, Section 3, South Renmin Road, Wuhou District, Chengdu, 610041, Sichuan, China
| | - Fengjiao Yuan
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, No. 17, Section 3, South Renmin Road, Wuhou District, Chengdu, 610041, Sichuan, China
| | - Yang Shu
- State Key Laboratory of Biotherapy, and Precision Medicine Key Laboratory of Sichuan Province, Precision Medicine Center, West China Hospital, Sichuan University and Collaborative Innovation Center, Chengdu, China
| | - Yaomei Tian
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, No. 17, Section 3, South Renmin Road, Wuhou District, Chengdu, 610041, Sichuan, China
| | - Bailing Zhou
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, No. 17, Section 3, South Renmin Road, Wuhou District, Chengdu, 610041, Sichuan, China
| | - Linglu Yi
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, No. 17, Section 3, South Renmin Road, Wuhou District, Chengdu, 610041, Sichuan, China
| | - Xueyan Zhang
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, No. 17, Section 3, South Renmin Road, Wuhou District, Chengdu, 610041, Sichuan, China
| | - Zhenyu Ding
- State Key Laboratory of Biotherapy, West China Medical School, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Heng Xu
- State Key Laboratory of Biotherapy, and Precision Medicine Key Laboratory of Sichuan Province, Precision Medicine Center, West China Hospital, Sichuan University and Collaborative Innovation Center, Chengdu, China
| | - Li Yang
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, No. 17, Section 3, South Renmin Road, Wuhou District, Chengdu, 610041, Sichuan, China.
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Yang L, Ji W, Zhong H, Wang L, Zhu X, Zhu J. Anti-tumor effect of volatile oil from Houttuynia cordata Thunb. on HepG2 cells and HepG2 tumor-bearing mice. RSC Adv 2019; 9:31517-31526. [PMID: 35527944 PMCID: PMC9072394 DOI: 10.1039/c9ra06024c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Accepted: 09/23/2019] [Indexed: 11/21/2022] Open
Abstract
The aim of this paper is to study the anti-tumor mechanism of volatile oil from Houttuynia cordata Thunb. (sodium new houttuyfonate, SNH). In vitro, SNH exhibited a concentration-dependent cytotoxic effect against four human cancer lines (HepG2, A2780, MCF-7, SKOV-3). SNH treatment with different concentrations induced HepG2 cells to exhibit varying degrees of morphological changes in apoptotic features, such as round shape, cell shrinkage and formation of apoptotic body. It was observed that SNH caused the decrease in Bcl-2 mRNA expression and triggered the apoptosis of HepG2 cells. Wound healing assay and RT-PCR results showed that the decrease in the expression level of MMP9 and VEGF was observed in HepG2 cells after treatment with SNH for 48 h, suggesting that the extracellular matrix pathway degradation was involved in the HepG2 cells migration. Moreover, we got an insight into the binding mode of SNH into the MMP9 active site through 3D pharmacophore models. Docking study and molecular dynamics (MD) simulation analysis sheds light on that SNH was completely embedded into the MMP9 active site and formed hydrogen bonds with key catalytic residues of MMP9, including Ala191, His190, Ala189 and Glu227. The prediction of SNH binding interaction energies in the MMP9 was almost in good agreement with the original inhibitor EN140. In vivo experiments, both SNH and cyclophosphamide significantly reduced tumor weights and their tumor inhibitory rates were 50.78% and 82.61% respectively. This study demonstrated that SNH was an apoptosis inducer in HepG2 cells. SNH has four possible functions, that it could induce apoptosis by mitochondria pathway in HepG2 cells, inhibit the tumor growth, regulate Bcl-2 family mRNA expression and effectively subdue migration of hepatocellular carcinoma cells by decreasing the expression of MMP9 and VEGF. Therefore, SNH might be a potential candidate drug for the treatment of hepatocellular carcinoma, which could provide a reference for further clinical research.
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Affiliation(s)
- Linsong Yang
- Biomedicine Laboratory, School of Pharmaceutical Engineering and Life Science, Changzhou University Changzhou Jiangsu 213164 P. R. China +86-519-86334598 +86-519-86334598
- Changzhou's Key Laboratory of Pharmaceutical Manufacture and Quality Control Engineering Changzhou 213164 P. R. China
| | - Weiwei Ji
- Biomedicine Laboratory, School of Pharmaceutical Engineering and Life Science, Changzhou University Changzhou Jiangsu 213164 P. R. China +86-519-86334598 +86-519-86334598
| | - Hui Zhong
- Biomedicine Laboratory, School of Pharmaceutical Engineering and Life Science, Changzhou University Changzhou Jiangsu 213164 P. R. China +86-519-86334598 +86-519-86334598
| | - Luyao Wang
- Biomedicine Laboratory, School of Pharmaceutical Engineering and Life Science, Changzhou University Changzhou Jiangsu 213164 P. R. China +86-519-86334598 +86-519-86334598
| | - Xiaolin Zhu
- Biomedicine Laboratory, School of Pharmaceutical Engineering and Life Science, Changzhou University Changzhou Jiangsu 213164 P. R. China +86-519-86334598 +86-519-86334598
- Changzhou's Key Laboratory of Pharmaceutical Manufacture and Quality Control Engineering Changzhou 213164 P. R. China
| | - Jie Zhu
- Biomedicine Laboratory, School of Pharmaceutical Engineering and Life Science, Changzhou University Changzhou Jiangsu 213164 P. R. China +86-519-86334598 +86-519-86334598
- Changzhou's Key Laboratory of Pharmaceutical Manufacture and Quality Control Engineering Changzhou 213164 P. R. China
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Emerging trends in the immunotherapy of pancreatic cancer. Cancer Lett 2017; 417:35-46. [PMID: 29242097 DOI: 10.1016/j.canlet.2017.12.012] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2017] [Revised: 11/20/2017] [Accepted: 12/07/2017] [Indexed: 12/23/2022]
Abstract
Pancreatic cancer (PC) is the fourth leading cause of cancer-related deaths in the U.S., claiming approximately 43,000 lives every year. Much like other solid tumors, PC evades the host immune surveillance by manipulating immune cells to establish an immunosuppressive tumor microenvironment (TME). Therefore, targeting and reinstating the patient's immune system could serve as a powerful therapeutic tool. Indeed, immunotherapy has emerged in recent years as a potential adjunct treatment for solid tumors including PC. Immunotherapy modulates the host's immune response to tumor-associated antigens (TAAs), eradicates cancer cells by reducing host tolerance to TAAs and provides both short- and long-term protection against the disease. Passive immunotherapies like monoclonal antibodies or engineered T-cell based therapies directly target tumor cells by recognizing TAAs. Active immunotherapies, like cancer vaccines, on the other hand elicit a long-lasting immune response via activation of the patient's immune cells against cancer cells. Several immunotherapy strategies have been tested for anti-tumor responses alone and in combination with standard care in multiple preclinical and clinical studies. In this review, we discuss various immunotherapy strategies used currently and their efficacy in abrogating self-antigen tolerance and immunosuppression, as well as their ability to eradicate PC.
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Santa-Maria CA, Park SJ, Jain S, Gradishar WJ. Breast cancer and immunology: biomarker and therapeutic developments. Expert Rev Anticancer Ther 2015; 15:1215-22. [PMID: 26358181 DOI: 10.1586/14737140.2015.1086270] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
While breast cancer has not historically been considered an immunogenic cancer, recent data demonstrating the powerful anti-cancer effects of immune checkpoints in many cancers, including breast cancer, has reinvigorated the field. Although the responses are generally low with single agents, some patients experience disease control for a long period of time. Selecting appropriate patients for immunotherapy is an important area of research, and many biomarkers are under investigation. Although immunotherapies are still in their early stages of development, learning how to use them in combination with other agents that can alter antigen presentation or other immune elements will be crucial. This review aims to summarize efforts in immune-related biomarker and drug development, particularly as it pertains to breast cancer.
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Affiliation(s)
- Cesar A Santa-Maria
- a 1 Northwestern University Feinberg School of Medicine, Robert H. Lurie Comprehensive Cancer Center, Department of Medicine, Division of Oncology, 676 North St. Clair, Suite 880 Chicago, IL 60611, USA
| | - Sue Jung Park
- b 2 Northwestern University Feinberg School of Medicine, Department of Medicine, Division of General Internal Medicine, Chicago, IL, USA
| | - Sarika Jain
- c 3 Northwestern University Feinberg School of Medicine, Robert H. Lurie Comprehensive Cancer Center, Department of Medicine, Division of Oncology, Chicago, IL, USA
| | - William J Gradishar
- c 3 Northwestern University Feinberg School of Medicine, Robert H. Lurie Comprehensive Cancer Center, Department of Medicine, Division of Oncology, Chicago, IL, USA
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