1
|
Wu M, Xiao Y, Huang J, Wang Y, Zhang Y, Xu J, Dai H, Lv C, Hu Y, Chen B, Fu Q, Le W, Xue C. Liquid nitrogen frozen cells for chemotherapy drug delivery and vaccination of melanoma. J Cancer Res Clin Oncol 2023; 149:13705-13716. [PMID: 37522925 DOI: 10.1007/s00432-023-05117-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 07/04/2023] [Indexed: 08/01/2023]
Abstract
PURPOSE Cancer vaccine (CV) has thrived as a promising tool for cancer prevention and treatment. However, how to maintain the integrity and diversity of individualized vaccine antigens and activate the adaptive immune system is still challenging. METHODS Herein, a preventive and therapeutic vaccine platform for in situ effective multi-model synergistic therapy is developed. In our study, we process B16F10 cells by liquid nitrogen frozen (LNF) to obtain LNF cells, the characterization of LNF cells were conducted. Moreover, the anti-tumor effect and immune activation ability were studied, and the role as a CV were investigated. RESULTS The LNF cells preserve intact cellular structure and tumor-associated self-antigen gp100. Moreover, LNF cells have the ability of loading and releasing doxorubicin (DOX). Except for the anti-tumor effect of chemotherapy brought by DOX, the LNF cells can promote the maturation of dendritic cells (DCs) and induce immune response by activating CD4+ and CD8+ T cells, particularly with the existence of adjuvant, R848. Specifically, the CD8+ T cells of mice in LNF-DOX/R848 group are 6 times of that in PBS group in tumor microenvironment, and twice in spleen. Therefore, LNF cells can also be utilized as a CV. Vaccination with LNF/R848 cells effectively suppress the tumor growth in mice by fivefold as compared to the control group. CONCLUSION In this work, we obtain the LNF cells with a simple procedure. The LNF cells not only provides a tumor cells-based multi-modal system for cancer therapy but inspires new insights into future development of individualized CVs strategies. This study processes live B16F10 cells by liquid nitrogen frozen to obtain LNF cells, which preserve cell integrity and homologous targeting ability. The LNF cells can load and deliver drug and can serve as tumor vaccine. Results demonstrated the LNF cells have effective prophylactic ability, and ideal anti-tumor ability with the loaded drug and adjuvant.
Collapse
Affiliation(s)
- Minliang Wu
- Department of Plastic Surgery, Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Yuai Xiao
- Department of Plastic Surgery, Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Jianguo Huang
- Institute for Regenerative Medicine, Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Yuchong Wang
- Department of Plastic Surgery, Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Yifan Zhang
- Institute for Regenerative Medicine, Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Jianguo Xu
- Department of Plastic Surgery, Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Haiying Dai
- Department of Plastic Surgery, Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Chuan Lv
- Department of Plastic Surgery, Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Yihui Hu
- Institute for Regenerative Medicine, Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Bingdi Chen
- Institute for Regenerative Medicine, Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Qingge Fu
- Department of Orthopedic Trauma, Changhai Hospital, Naval Medical University, Shanghai, 200433, China.
| | - Wenjun Le
- Institute for Regenerative Medicine, Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science, School of Medicine, Tongji University, Shanghai, 200092, China.
| | - Chunyu Xue
- Department of Plastic Surgery, Changhai Hospital, Naval Medical University, Shanghai, 200433, China.
| |
Collapse
|
2
|
Ring SS, Królik M, Hartmann F, Schmidt E, Ali OH, Ludewig B, Kochanek S, Flatz L. Heterologous Prime Boost Vaccination Induces Protective Melanoma-Specific CD8 + T Cell Responses. MOLECULAR THERAPY-ONCOLYTICS 2020; 19:179-187. [PMID: 33209978 PMCID: PMC7658660 DOI: 10.1016/j.omto.2020.10.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 10/06/2020] [Indexed: 12/16/2022]
Abstract
Cancer vaccination aims at inducing an adaptive immune response against tumor-derived antigens. In this study, we utilize recombinant human adenovirus serotype 5 (rAd5) and recombinant lymphocytic choriomeningitis virus (rLCMV)-based vectors expressing the melanocyte differentiation antigen gp100. In contrast to single or homologous vaccination, a heterologous prime boost vaccination starting with a rAd5-gp100 prime immunization followed by a rLCMV-gp100 boost injection induces a high magnitude of polyfunctional gp100-specific CD8+ T cells. Our data indicate that an optimal T cell induction is dependent on the order and interval of the vaccinations. A prophylactic prime boost vaccination with rAd5- and rLCMV-gp100 protects mice from a B16.F10 melanoma challenge. In the therapeutic setting, combination of the vaccination with low-dose cyclophosphamide showed a synergistic effect and significantly delayed tumor growth. Our findings suggest that heterologous viral vector prime boost immunizations can mediate tumor control in a mouse melanoma model.
Collapse
Affiliation(s)
- Sandra S Ring
- Institute of Immunobiology, Kantonsspital St.Gallen, Rorschacher Strasse 95, 9007 St.Gallen, Switzerland
| | - Michał Królik
- Institute of Immunobiology, Kantonsspital St.Gallen, Rorschacher Strasse 95, 9007 St.Gallen, Switzerland
| | - Fabienne Hartmann
- Institute of Immunobiology, Kantonsspital St.Gallen, Rorschacher Strasse 95, 9007 St.Gallen, Switzerland
| | - Erika Schmidt
- Department of Gene Therapy, Ulm University, Helmholtzstrasse 8, 89081 Ulm, Germany
| | - Omar Hasan Ali
- Institute of Immunobiology, Kantonsspital St.Gallen, Rorschacher Strasse 95, 9007 St.Gallen, Switzerland.,Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Burkhard Ludewig
- Institute of Immunobiology, Kantonsspital St.Gallen, Rorschacher Strasse 95, 9007 St.Gallen, Switzerland.,Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Stefan Kochanek
- Department of Gene Therapy, Ulm University, Helmholtzstrasse 8, 89081 Ulm, Germany
| | - Lukas Flatz
- Institute of Immunobiology, Kantonsspital St.Gallen, Rorschacher Strasse 95, 9007 St.Gallen, Switzerland.,Department of Dermatology, University Hospital Zurich, Gloriastrasse 31, 8091 Zurich, Switzerland.,Department of Oncology and Hematology, Kantonsspital St.Gallen, Rorschacher Strasse 95, 9007 St.Gallen, Switzerland.,Department of Dermatology, Kantonsspital St.Gallen, Rorschacher Strasse 95, 9007 St.Gallen, Switzerland
| |
Collapse
|
3
|
The Bone Marrow Protects and Optimizes Immunological Memory during Dietary Restriction. Cell 2019; 178:1088-1101.e15. [PMID: 31442402 PMCID: PMC6818271 DOI: 10.1016/j.cell.2019.07.049] [Citation(s) in RCA: 155] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 05/28/2019] [Accepted: 07/29/2019] [Indexed: 12/31/2022]
Abstract
Mammals evolved in the face of fluctuating food availability. How the immune system adapts to transient nutritional stress remains poorly understood. Here, we show that memory T cells collapsed in secondary lymphoid organs in the context of dietary restriction (DR) but dramatically accumulated within the bone marrow (BM), where they adopted a state associated with energy conservation. This response was coordinated by glucocorticoids and associated with a profound remodeling of the BM compartment, which included an increase in T cell homing factors, erythropoiesis, and adipogenesis. Adipocytes, as well as CXCR4-CXCL12 and S1P-S1P1R interactions, contributed to enhanced T cell accumulation in BM during DR. Memory T cell homing to BM during DR was associated with enhanced protection against infections and tumors. Together, this work uncovers a fundamental host strategy to sustain and optimize immunological memory during nutritional challenges that involved a temporal and spatial reorganization of the memory pool within "safe haven" compartments.
Collapse
|
4
|
Varypataki EM, Hasler F, Waeckerle-Men Y, Vogel-Kindgen S, Høgset A, Kündig TM, Gander B, Halin C, Johansen P. Combined Photosensitization and Vaccination Enable CD8 T-Cell Immunity and Tumor Suppression Independent of CD4 T-Cell Help. Front Immunol 2019; 10:1548. [PMID: 31333674 PMCID: PMC6624637 DOI: 10.3389/fimmu.2019.01548] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Accepted: 06/21/2019] [Indexed: 12/21/2022] Open
Abstract
Cytotoxic T lymphocytes (CTLs) are key players in fighting cancer, and their induction is a major focus in the design of therapeutic vaccines. Yet, therapeutic vaccine efficacy is limited, in part due to the suboptimal vaccine processing by antigen-presenting cells (APCs). Such processing typically takes place via the MHC class II pathway for CD4 T-cell activation and MHC class I pathway for activation of CD8 CTLs. We show that a combination of skin photochemical treatment and immunization, so-called photochemical internalization (PCI) facilitated CTL activation due to the photochemical adjuvant effect induced by photosensitizer, oxygen, and light. Mice were immunized intradermally with antigen and photosensitizer, followed by controlled light exposure. PCI-treated mice showed strong activation of CD8 T cells, with improved IFN-γ production and cytotoxicity, as compared to mice immunized without parallel PCI treatment. Surprisingly, the CD8 T-cell effector functions were not impaired in MHC class II- or CD4 T-cell-deficient mice. Moreover, PCI-based vaccination caused tumor regression independent of MHC class II or CD4 T cells presence in melanoma bearing mice. Together, the data demonstrate that PCI can act as a powerful adjuvant in cancer vaccines, even in hosts with impaired T-helper functions.
Collapse
Affiliation(s)
| | - Fabio Hasler
- Department of Dermatology, University of Zurich, Zurich, Switzerland
| | | | | | | | - Thomas M Kündig
- Department of Dermatology, University of Zurich, Zurich, Switzerland.,Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - Bruno Gander
- Institute of Pharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
| | - Cornelia Halin
- Institute of Pharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
| | - Pål Johansen
- Department of Dermatology, University of Zurich, Zurich, Switzerland.,Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| |
Collapse
|
5
|
Hotblack A, Seshadri S, Zhang L, Hamrang-Yousefi S, Chakraverty R, Escors D, Bennett CL. Dendritic Cells Cross-Present Immunogenic Lentivector-Encoded Antigen from Transduced Cells to Prime Functional T Cell Immunity. Mol Ther 2017; 25:504-511. [PMID: 28153097 PMCID: PMC5368353 DOI: 10.1016/j.ymthe.2016.11.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 11/10/2016] [Accepted: 11/11/2016] [Indexed: 12/03/2022] Open
Abstract
Recombinant lentiviral vectors (LVs) are highly effective vaccination vehicles that elicit protective T cell immunity in disease models. Dendritic cells (DCs) acquire antigen at sites of vaccination and migrate to draining lymph nodes, where they prime vaccine-specific T cells. The potency with which LVs activate CD8+ T cell immunity has been attributed to the transduction of DCs at the immunization site and durable presentation of LV-encoded antigens. However, it is not known how LV-encoded antigens continue to be presented to T cells once directly transduced DCs have turned over. Here, we report that LV-encoded antigen is efficiently cross-presented by DCs in vitro. We have further exploited the temporal depletion of DCs in the murine CD11c.DTR (diphtheria toxin receptor) model to demonstrate that repopulating DCs that were absent at the time of immunization cross-present LV-encoded antigen to T cells in vivo. Indirect presentation of antigen from transduced cells by DCs is sufficient to prime functional effector T cells that control tumor growth. These data suggest that DCs cross-present immunogenic antigen from LV-transduced cells, thereby facilitating prolonged activation of T cells in the absence of circulating LV particles. These are findings that may impact on the future design of LV vaccination strategies.
Collapse
Affiliation(s)
- Alastair Hotblack
- Institute for Immunity and Transplantation, University College London, London NW3 2PF, UK
| | - Sara Seshadri
- Institute for Immunity and Transplantation, University College London, London NW3 2PF, UK; Cancer Institute, University College London, London WC1E 6DD, UK
| | - Lei Zhang
- Institute for Immunity and Transplantation, University College London, London NW3 2PF, UK; Cancer Institute, University College London, London WC1E 6DD, UK
| | - Sahar Hamrang-Yousefi
- Institute for Immunity and Transplantation, University College London, London NW3 2PF, UK; Cancer Institute, University College London, London WC1E 6DD, UK
| | - Ronjon Chakraverty
- Institute for Immunity and Transplantation, University College London, London NW3 2PF, UK; Cancer Institute, University College London, London WC1E 6DD, UK
| | - David Escors
- Immunomodulation Group, Navarrabiomed-Fundaçion Miguel Servet, Calle de Irunlarrea 3, 31008 Pamplona, Spain
| | - Clare L Bennett
- Institute for Immunity and Transplantation, University College London, London NW3 2PF, UK; Cancer Institute, University College London, London WC1E 6DD, UK.
| |
Collapse
|
6
|
Chen J, Liu Y, Sun Q, Wang B, Li N, Chen X. CYR61 suppresses growth of human malignant melanoma. Oncol Rep 2016; 36:2697-2704. [PMID: 27665942 DOI: 10.3892/or.2016.5124] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 07/18/2016] [Indexed: 11/06/2022] Open
Abstract
Cysteine-rich protein 61 (CCN1/CYR61) is an important marker of proliferation and metastasis in malignant melanoma, making it a potential target for melanoma treatment. In this study, we compared the expression of CRY61 in Chinese patients with malignant melanoma with its expression in patients with other skin tumors or with no skin pathological conditions. We examined the effects of anti-human CYR61 monoclonal antibody on proliferation and evaluated the changes in CYR61 expression and cell proliferation in response to treatment with either epirubicin or interferon (IFN)-α. CYR61 was expressed at lower levels in patients with malignant melanoma than in patients with other skin tumors or with no pathology. Following the treatment of B16 cells with epirubicin and IFN-α, CYR61 levels increased, cell growth was inhibited, and proliferating cell nuclear antigen expression decreased. Thus, CYR61 could become a therapeutic target for malignant melanoma patients with high CYR61 expression.
Collapse
Affiliation(s)
- Jun Chen
- Department of Dermatology and Dermatologic Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200011, P.R. China
| | - Yang Liu
- Department of Dermatology and Dermatologic Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200011, P.R. China
| | - Qilin Sun
- Department of Dermatology and Dermatologic Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200011, P.R. China
| | - Beiqing Wang
- Department of Dermatology and Dermatologic Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200011, P.R. China
| | - Ningli Li
- Department of Immunology, Shanghai Jiaotong University School of Medicine, Shanghai 200011, P.R. China
| | - Xiangdong Chen
- Department of Dermatology and Dermatologic Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200011, P.R. China
| |
Collapse
|
7
|
Mairhofer DG, Ortner D, Tripp CH, Schaffenrath S, Fleming V, Heger L, Komenda K, Reider D, Dudziak D, Chen S, Becker JC, Flacher V, Stoitzner P. Impaired gp100-Specific CD8(+) T-Cell Responses in the Presence of Myeloid-Derived Suppressor Cells in a Spontaneous Mouse Melanoma Model. J Invest Dermatol 2015; 135:2785-2793. [PMID: 26121214 PMCID: PMC4652066 DOI: 10.1038/jid.2015.241] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 06/01/2015] [Accepted: 06/11/2015] [Indexed: 12/12/2022]
Abstract
Murine tumor models that closely reflect human diseases are important tools to investigate carcinogenesis and tumor immunity. The transgenic (tg) mouse strain tg(Grm1)EPv develops spontaneous melanoma due to ectopic overexpression of the metabotropic glutamate receptor 1 (Grm1) in melanocytes. In the present study, we characterized the immune status and functional properties of immune cells in tumor-bearing mice. Melanoma development was accompanied by a reduction in the percentages of CD4(+) T cells including regulatory T cells (Tregs) in CD45(+) leukocytes present in tumor tissue and draining lymph nodes (LNs). In contrast, the percentages of CD8(+) T cells were unchanged, and these cells showed an activated phenotype in tumor mice. Endogenous melanoma-associated antigen glycoprotein 100 (gp100)-specific CD8(+) T cells were not deleted during tumor development, as revealed by pentamer staining in the skin and draining LNs. They, however, were unresponsive to ex vivo gp100-peptide stimulation in late-stage tumor mice. Interestingly, immunosuppressive myeloid-derived suppressor cells (MDSCs) were recruited to tumor tissue with a preferential accumulation of granulocytic MDSC (grMDSCs) over monocytic MDSC (moMDSCs). Both subsets produced Arginase-1, inducible nitric oxide synthase (iNOS), and transforming growth factor-β and suppressed T-cell proliferation in vitro. In this work, we describe the immune status of a spontaneous melanoma mouse model that provides an interesting tool to develop future immunotherapeutical strategies.
Collapse
MESH Headings
- Analysis of Variance
- Animals
- CD8-Positive T-Lymphocytes/immunology
- Cell Proliferation
- Disease Models, Animal
- Humans
- Lymphocyte Activation
- Melanoma, Experimental/immunology
- Melanoma, Experimental/pathology
- Mice
- Mice, Inbred C57BL
- Mice, Transgenic
- Random Allocation
- Suppressor Factors, Immunologic/immunology
- Suppressor Factors, Immunologic/metabolism
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/metabolism
- Tumor Cells, Cultured
- gp100 Melanoma Antigen/immunology
- gp100 Melanoma Antigen/metabolism
Collapse
Affiliation(s)
- David G Mairhofer
- Department of Dermatology and Venereology, Medical University of Innsbruck, Innsbruck, Austria
| | - Daniela Ortner
- Department of Dermatology and Venereology, Medical University of Innsbruck, Innsbruck, Austria
| | - Christoph H Tripp
- Department of Dermatology and Venereology, Medical University of Innsbruck, Innsbruck, Austria; Oncotyrol, Center for Personalized Cancer Medicine, Innsbruck, Austria
| | - Sandra Schaffenrath
- Department of Dermatology and Venereology, Medical University of Innsbruck, Innsbruck, Austria; Oncotyrol, Center for Personalized Cancer Medicine, Innsbruck, Austria
| | - Viktor Fleming
- Department of Dermatology and Venereology, Medical University of Innsbruck, Innsbruck, Austria; Department of Dermatology, Laboratory of DC-Biology, Friedrich-Alexander University of Erlangen-Nürnberg, University Hospital of Erlangen, Erlangen, Germany
| | - Lukas Heger
- Department of Dermatology and Venereology, Medical University of Innsbruck, Innsbruck, Austria; Department of Dermatology, Laboratory of DC-Biology, Friedrich-Alexander University of Erlangen-Nürnberg, University Hospital of Erlangen, Erlangen, Germany
| | - Kerstin Komenda
- Department of Dermatology and Venereology, Medical University of Innsbruck, Innsbruck, Austria
| | - Daniela Reider
- Department of Dermatology and Venereology, Medical University of Innsbruck, Innsbruck, Austria; Oncotyrol, Center for Personalized Cancer Medicine, Innsbruck, Austria
| | - Diana Dudziak
- Department of Dermatology, Laboratory of DC-Biology, Friedrich-Alexander University of Erlangen-Nürnberg, University Hospital of Erlangen, Erlangen, Germany
| | - Suzie Chen
- Department of Chemical Biology, Lab for Cancer Research, Rutgers University, Piscataway, New Jersey, USA
| | - Jürgen C Becker
- Department for Translational Dermato-Oncology, Center for Medical Biotechnology, University Hospital Essen, Essen, Germany
| | - Vincent Flacher
- Department of Dermatology and Venereology, Medical University of Innsbruck, Innsbruck, Austria
| | - Patrizia Stoitzner
- Department of Dermatology and Venereology, Medical University of Innsbruck, Innsbruck, Austria.
| |
Collapse
|
8
|
He Y, Hong Y, Mizejewski GJ. Engineering α-fetoprotein-based gene vaccines to prevent and treat hepatocellular carcinoma: review and future prospects. Immunotherapy 2015; 6:725-36. [PMID: 25041030 DOI: 10.2217/imt.14.46] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Activation of a patient's immune system offers an attractive approach to prevent and treat hepatocellular carcinoma (HCC). However, the antitumor efficacy of current HCC vaccines was weak owing to insufficient immune activation of targeting self/tumor antigens. We recently found that epitope-optimized α-fetoprotein effectively activated CD8 T cells and generated potent antitumor effects in the carcinogen-induced autochthonous HCC mouse model. We predict that the same antigen engineering approach of epitope-optimization will enable us to develop effective human vaccines to prevent HCC recurrence after liver resection. The engineered human HCC vaccines may also allow us to identify high-affinity T-cell receptors and antibodies that can be used to reprogram T cells to treat HCC tumors via adoptive transfer.
Collapse
Affiliation(s)
- Yukai He
- Georgia Regents University Cancer Center, Cancer Immunology, Inflammation & Tolerance Program, Augusta, GA 30907, USA
| | | | | |
Collapse
|
9
|
Hong Y, Peng Y, Guo ZS, Guevara-Patino J, Pang J, Butterfield LH, Mivechi N, Munn DH, Bartlett DL, He Y. Epitope-optimized alpha-fetoprotein genetic vaccines prevent carcinogen-induced murine autochthonous hepatocellular carcinoma. Hepatology 2014; 59:1448-58. [PMID: 24122861 PMCID: PMC4151349 DOI: 10.1002/hep.26893] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Revised: 09/25/2013] [Accepted: 10/06/2013] [Indexed: 12/12/2022]
Abstract
UNLABELLED Immunization with effective cancer vaccines can offer a much needed adjuvant therapy to fill the treatment gap after liver resection to prevent relapse of hepatocellular carcinoma (HCC). However, current HCC cancer vaccines are mostly based on native shared-self/tumor antigens that are only able to induce weak immune responses. In this study we investigated whether the HCC-associated self/tumor antigen of alpha-fetoprotein (AFP) could be engineered to create an effective vaccine to break immune tolerance and potently activate CD8 T cells to prevent clinically relevant carcinogen-induced autochthonous HCC in mice. We found that the approach of computer-guided methodical epitope-optimization created a highly immunogenic AFP and that immunization with lentivector expressing the epitope-optimized AFP, but not wild-type AFP, potently activated CD8 T cells. Critically, the activated CD8 T cells not only cross-recognized short synthetic wild-type AFP peptides, but also recognized and killed tumor cells expressing wild-type AFP protein. Immunization with lentivector expressing optimized AFP, but not native AFP, completely protected mice from tumor challenge and reduced the incidence of carcinogen-induced autochthonous HCC. In addition, prime-boost immunization with the optimized AFP significantly increased the frequency of AFP-specific memory CD8 T cells in the liver that were highly effective against emerging HCC tumor cells, further enhancing the tumor prevention of carcinogen-induced autochthonous HCC. CONCLUSIONS Epitope-optimization is required to break immune tolerance and potently activate AFP-specific CD8 T cells, generating effective antitumor effect to prevent clinically relevant carcinogen-induced autochthonous HCC in mice. Our study provides a practical roadmap to develop effective human HCC vaccines that may result in an improved outcome compared to the current HCC vaccines based on wild-type AFP.
Collapse
Affiliation(s)
- Yuan Hong
- Cancer Immunology, Inflammation, and Tolerance Program, Georgia Regents University Cancer Center, Augusta, GA
| | - Yibing Peng
- Cancer Immunology, Inflammation, and Tolerance Program, Georgia Regents University Cancer Center, Augusta, GA
| | - Z. Sheng Guo
- Department of Surgery and University of Pittsburgh Cancer Institute, Pittsburgh, PA
| | - Jose Guevara-Patino
- Depart of Surgery, Cardinal Bernardin Cancer Center, Loyola University, Maywood, IL
| | - Junfeng Pang
- Department of Radiology and Molecular Chaperone Program, Georgia Regents University Cancer Center, Augusta, GA
| | - Lisa H. Butterfield
- Department of Medicine, Surgery, and Immunology, University of Pittsburgh Cancer Institute, Pittsburgh, PA
| | - Nahid Mivechi
- Department of Radiology and Molecular Chaperone Program, Georgia Regents University Cancer Center, Augusta, GA
| | - David H Munn
- Cancer Immunology, Inflammation, and Tolerance Program, Georgia Regents University Cancer Center, Augusta, GA,Department of Pediatrics, Medical College of Georgia, Augusta, GA
| | - David L Bartlett
- Department of Surgery and University of Pittsburgh Cancer Institute, Pittsburgh, PA
| | - Yukai He
- Cancer Immunology, Inflammation, and Tolerance Program, Georgia Regents University Cancer Center, Augusta, GA,Department of Medicine, Medical College of Georgia, Augusta, GA
| |
Collapse
|
10
|
Diminished Memory T-Cell Expansion Due to Delayed Kinetics of Antigen Expression by Lentivectors. PLoS One 2013; 8:e66488. [PMID: 23824049 PMCID: PMC3688922 DOI: 10.1371/journal.pone.0066488] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Accepted: 05/05/2013] [Indexed: 11/23/2022] Open
Abstract
Memory CD8+ T lymphocytes play a central role in protective immunity. In attempt to increase the frequencies of memory CD8+ T cells, repeated immunizations with viral vectors are regularly explored. Lentivectors have emerged as a powerful vaccine modality with relatively low pre-existing and anti-vector immunity, thus, thought to be ideal for boosting memory T cells. Nevertheless, we found that lentivectors elicited diminished secondary T-cell responses that did not exceed those obtained by priming. This was not due to the presence of anti-vector immunity, as limited secondary responses were also observed following heterologous prime-boost immunizations. By dissecting the mechanisms involved in this process, we demonstrate that lentivectors trigger exceptionally slow kinetics of antigen expression, while optimal activation of lentivector-induced T cells relays on durable expression of the antigen. These qualities hamper secondary responses, since lentivector-encoded antigen is rapidly cleared by primary cytotoxic T cells that limit its presentation by dendritic cells. Indeed, blocking antigen clearance by cytotoxic T cells via FTY720 treatment, fully restored antigen presentation. Taken together, while low antigen expression is expected during secondary immunization with any vaccine vector, our results reveal that the intrinsic delayed expression kinetics of lentiviral-encoded antigen, further dampens secondary CD8+ T-cell expansion.
Collapse
|
11
|
Xiao H, Peng Y, Hong Y, Huang L, Guo ZS, Bartlett DL, Fu N, Munn DH, Mellor A, He Y. Local administration of TLR ligands rescues the function of tumor-infiltrating CD8 T cells and enhances the antitumor effect of lentivector immunization. THE JOURNAL OF IMMUNOLOGY 2013; 190:5866-73. [PMID: 23610140 DOI: 10.4049/jimmunol.1203470] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Cancer vaccines, to date, have shown limited effect to control the growth of established tumors due largely to effector failure of the antitumor immune responses. Tumor lesion is characterized as chronic indolent inflammation in which the effector function of tumor-infiltrating lymphocytes (TILs) is severely impaired. In this study, we investigated whether the effector function of CD8 TILs could be rescued by converting the chronic inflammation milieu to acute inflammation within tumors. We found that injection of TLR3/9 ligands (polyI:C/CpG) into a tumor during the effector phase of lentivector (lv) immunization effectively rescued the function of lv-activated CD8 TILs and decreased the percentage of T regulatory within the tumor, resulting in a marked improvement in the antitumor efficacy of lv immunization. Mechanistically, rescue of the effector function of CD8 TILs by TLR3/9 ligands is most likely dependent on production, within a tumor, of type-1 IFN that can mature and activate tumor-infiltrating dendritic cells. The effector function of CD8 TILs could not be rescued in mice lacking intact type I IFN signaling. These findings have important implications for tumor immunotherapy, suggesting that type I IFN-mediated activation of tumor-infiltrating dendritic cells within a tumor will most likely restore/enhance the effector function of CD8 TILs and thus improve the antitumor efficacy of current cancer vaccines.
Collapse
Affiliation(s)
- Haiyan Xiao
- Immunology/Immunotherapy Program, Georgia Regents University Cancer Center, Augusta, GA 30912, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Vasconcelos JR, Dominguez MR, Araújo AF, Ersching J, Tararam CA, Bruna-Romero O, Rodrigues MM. Relevance of long-lived CD8(+) T effector memory cells for protective immunity elicited by heterologous prime-boost vaccination. Front Immunol 2012; 3:358. [PMID: 23264773 PMCID: PMC3525016 DOI: 10.3389/fimmu.2012.00358] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Accepted: 11/10/2012] [Indexed: 11/13/2022] Open
Abstract
Owing to the importance of major histocompatibility complex class Ia-restricted CD8(+) T cells for host survival following viral, bacterial, fungal, or parasitic infection, it has become largely accepted that these cells should be considered in the design of a new generation of vaccines. For the past 20 years, solid evidence has been provided that the heterologous prime-boost regimen achieves the best results in terms of induction of long-lived protective CD8(+) T cells against a variety of experimental infections. Although this regimen has often been used experimentally, as is the case for many vaccines, the mechanism behind the efficacy of this vaccination regimen is still largely unknown. The main purpose of this review is to examine the characteristics of the protective CD8(+) T cells generated by this vaccination regimen. Part of its efficacy certainly relies on the generation and maintenance of large numbers of specific lymphocytes. Other specific characteristics may also be important, and studies on this direction have only recently been initiated. So far, the characterization of these protective, long-lived T cell populations suggests that there is a high frequency of polyfunctional T cells; these cells cover a large breadth and display a T effector memory (TEM) phenotype. These TEM cells are capable of proliferating after an infectious challenge and are highly refractory to apoptosis due to a control of the expression of pro-apoptotic receptors such as CD95. Also, they do not undergo significant long-term immunological erosion. Understanding the mechanisms that control the generation and maintenance of the protective activity of these long-lived TEM cells will certainly provide important insights into the physiology of CD8(+) T cells and pave the way for the design of new or improved vaccines.
Collapse
Affiliation(s)
- José R Vasconcelos
- Centro de Terapia Celular e Molecular, Universidade Federal de São Paulo - Escola Paulista de Medicina São Paulo, São Paulo, Brazil ; Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de São Paulo - Escola Paulista de Medicina São Paulo, São Paulo, Brazil
| | | | | | | | | | | | | |
Collapse
|
13
|
Grant EV, Thomas M, Fortune J, Klibanov AM, Letvin NL. Enhancement of plasmid DNA immunogenicity with linear polyethylenimine. Eur J Immunol 2012; 42:2937-48. [DOI: 10.1002/eji.201242410] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2012] [Revised: 06/05/2012] [Accepted: 08/01/2012] [Indexed: 11/11/2022]
Affiliation(s)
- Evita V. Grant
- Division of Viral Pathogenesis; Beth Israel Deaconess Medical Center; Harvard Medical School; Boston Massachusetts USA
| | - Mini Thomas
- Department of Chemistry; Purdue University; West Lafayette Indiana USA
| | - Jennifer Fortune
- Department of Chemistry and Division of Biological Engineering; Massachusetts Institute of Technology; Cambridge Massachusetts USA
| | - Alexander M. Klibanov
- Department of Chemistry and Division of Biological Engineering; Massachusetts Institute of Technology; Cambridge Massachusetts USA
| | - Norman L. Letvin
- Division of Viral Pathogenesis; Beth Israel Deaconess Medical Center; Harvard Medical School; Boston Massachusetts USA
| |
Collapse
|
14
|
Côté AL, Byrne KT, Steinberg SM, Zhang P, Turk MJ. Protective CD8 memory T cell responses to mouse melanoma are generated in the absence of CD4 T cell help. PLoS One 2011; 6:e26491. [PMID: 22046294 PMCID: PMC3202545 DOI: 10.1371/journal.pone.0026491] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2011] [Accepted: 09/28/2011] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND We have previously demonstrated that temporary depletion of CD4 T cells in mice with progressive B16 melanoma, followed by surgical tumor excision, induces protective memory CD8 T cell responses to melanoma/melanocyte antigens. We also showed that persistence of these CD8 T cells is supported, in an antigen-dependent fashion, by concurrent autoimmune melanocyte destruction. Herein we explore the requirement of CD4 T cell help in priming and maintaining this protective CD8 T cell response to melanoma. METHODOLOGY AND PRINCIPAL FINDINGS To induce melanoma/melanocyte antigen-specific CD8 T cells, B16 tumor bearing mice were depleted of regulatory T cells (T(reg)) by either temporary, or long-term continuous treatment with anti-CD4 (mAb clone GK1.5). Total depletion of CD4 T cells led to significant priming of IFN-γ-producing CD8 T cell responses to TRP-2 and gp100. Surprisingly, treatment with anti-CD25 (mAb clone PC61), to specifically deplete T(reg) cells while leaving help intact, was ineffective at priming CD8 T cells. Thirty to sixty days after primary tumors were surgically excised, mice completely lacking CD4 T cell help developed autoimmune vitiligo, and maintained antigen-specific memory CD8 T cell responses that were highly effective at producing cytokines (IFN-γ, TNF-α, and IL-2). Mice lacking total CD4 T cell help also mounted protection against re-challenge with B16 melanoma sixty days after primary tumor excision. CONCLUSIONS AND SIGNIFICANCE This work establishes that CD4 T cell help is dispensable for the generation of protective memory T cell responses to melanoma. Our findings support further use of CD4 T cell depletion therapy for inducing long-lived immunity to cancer.
Collapse
Affiliation(s)
- Anik L. Côté
- Dartmouth Medical School and the Norris Cotton Cancer Center, Lebanon, New Hampshire, United States of America
| | - Katelyn T. Byrne
- Dartmouth Medical School and the Norris Cotton Cancer Center, Lebanon, New Hampshire, United States of America
| | - Shannon M. Steinberg
- Dartmouth Medical School and the Norris Cotton Cancer Center, Lebanon, New Hampshire, United States of America
| | - Peisheng Zhang
- Dartmouth Medical School and the Norris Cotton Cancer Center, Lebanon, New Hampshire, United States of America
| | - Mary Jo Turk
- Dartmouth Medical School and the Norris Cotton Cancer Center, Lebanon, New Hampshire, United States of America
- * E-mail:
| |
Collapse
|