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Kajihara M, Takakura K, Ohkusa T, Koido S. The impact of dendritic cell-tumor fusion cells on cancer vaccines - past progress and future strategies. Immunotherapy 2015; 7:1111-22. [PMID: 26507578 DOI: 10.2217/imt.15.73] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Dendritic cells (DCs) are potent antigen-presenting cells that can be used in cancer vaccines. Thus, various strategies have been developed to deliver tumor-associated antigens via DCs. One strategy includes administering DC-tumor fusion cells (DC-tumor FCs) to induce antitumor immune responses in cancer patients. However, clinical trials using this strategy have fallen short of expectations. Several factors might limit the efficacy of these anticancer vaccines. To induce efficient antitumor immune responses and enhance potential clinical benefits, DC-tumor FC-based cancer vaccines require manipulations that improve immunogenicity for both DCs and whole tumor cells. This review addresses recent progress in improving clinical outcomes using DC-tumor FC-based cancer vaccines.
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Affiliation(s)
- Mikio Kajihara
- Division of Gastroenterology & Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Kazuki Takakura
- Division of Gastroenterology & Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Toshifumi Ohkusa
- Division of Gastroenterology & Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Shigeo Koido
- Division of Gastroenterology & Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
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2
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Yu Z, Ren P, Zhang X, Zhang T, Ma B. Therapeutic potential of dendritic cell vaccines in sarcoma of the extremities. Expert Rev Anticancer Ther 2014; 9:1065-71. [DOI: 10.1586/era.09.78] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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3
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Kawahara T. Establishment and characterization of mouse bone marrow-derived mast cell hybridomas. Exp Cell Res 2012; 318:2385-96. [DOI: 10.1016/j.yexcr.2012.07.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2012] [Revised: 07/09/2012] [Accepted: 07/12/2012] [Indexed: 12/20/2022]
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4
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Cathelin D, Nicolas A, Bouchot A, Fraszczak J, Labbé J, Bonnotte B. Dendritic cell-tumor cell hybrids and immunotherapy: what's next? Cytotherapy 2011; 13:774-85. [PMID: 21299362 DOI: 10.3109/14653249.2011.553593] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Dendritic cells (DC) are professional antigen-presenting cells currently being used as a cellular adjuvant in cancer immunotherapy strategies. Unfortunately, DC-based vaccines have not demonstrated spectacular clinical results. DC loading with tumor antigens and DC differentiation and activation still require optimization. An alternative technique for providing antigens to DC consists of the direct fusion of dendritic cells with tumor cells. These resulting hybrid cells may express both major histocompatibility complex (MHC) class I and II molecules associated with tumor antigens and the appropriate co-stimulatory molecules required for T-cell activation. Initially tested in animal models, this approach has now been evaluated in clinical trials, although with limited success. We summarize and discuss the results from the animal studies and first clinical trials. We also present a new approach to inducing hybrid formation by expression of viral fusogenic membrane glycoproteins.
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Affiliation(s)
- Dominique Cathelin
- Institut National de la Santé et de la Recherche Médicale Unité Mixte de Recherche 866, France.
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5
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Xu F, Ye YJ, Liu W, Kong M, He Y, Wang S. Dendritic cell/tumor hybrids enhances therapeutic efficacy against colorectal cancer liver metastasis in SCID mice. Scand J Gastroenterol 2010; 45:707-13. [PMID: 20205622 DOI: 10.3109/00365521003650180] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVE Colorectal cancer (CRC) is one of the most common malignancies in the western world. More than 60% among patients will develop liver metastases. Although surgical resection is the first choice worldwide, at this point an effective approach for the treatment of patients with liver metastasis and cancer recurrence postoperation has not yet been found. The aim of this study is to investigate the role of the allogeneic dendritomas from fusion of DCs and metastatic colon cancer cells in the activation of anti-tumor immunity against colorectal cancer liver metastases. MATERIAL AND METHODS Hybrids were generated by fused allogeneic human peripheral blood dendritic cells with metastatic colon cancer SW620 cells using 50% polyethylene glycol (PEG). Induction of immune responses was assessed by ex vivo ELISPOT assays. A murine model of CRC liver metastasis was used by intrasplenic injection. The validity of the vaccine was observed by Vaccination CRC liver metastasis murine model with DC/tumor hybrids. RESULTS The hybrids highly express the major molecules of DCs and tumor cells. The number of hybrids pulsed CTL secreting IFN-gamma was significantly higher when compared to the DC controls (p < 0.01). In a therapeutic setting mice vaccinated with in vitro cultured hybrids produced strong cellular immune responses and significant inhibition of tumor growth, compared to sham vaccinated controls. CONCLUSIONS Vaccination with hybrids can induces strong cellular responses and significant protection from challenge in SCID mouse metastatic CRC model.
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Affiliation(s)
- Feng Xu
- Department of Gastroenterological Surgery, Surgical Oncology Laboratory, Peking University People's Hospital, Beijing, China
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6
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Yang JY, Cao DY, Ma LY, Liu WC. Dendritic cells fused with allogeneic hepatocellular carcinoma cell line compared with fused autologous tumor cells as hepatocellular carcinoma vaccines. Hepatol Res 2010; 40:505-13. [PMID: 20374301 DOI: 10.1111/j.1872-034x.2010.00625.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
PURPOSE To investigate the specific antitumor responses against autologous hepatocellular carcinoma (HCC) cells of dendritic cells (DCs) fused with allogeneic HCC cell line, and evaluated the feasibility of BEL7402 as an alternative strategy to deliver shared HCC antigens to DCs. METHODS Previous studies demonstrated fusions of patient-derived DCs and autologous tumor cells could induce T-cell responses against autologous tumors. These fusion cells require patient-derived tumor cells, which are not, however, always available. Here, we report the fusing of autologous DCs with allogeneic HCC cell line to induced cytotoxic T-lymphocyte (CTL) response against autologous HCC cells compare with autologous tumor cells. RESULTS These DC/ BEL7402 fusion cells co-expressed tumor-associated antigens and DC-derived costimulatory and major histocompatibility complex molecules. Both CD4+ and CD8 T+ cells were activated by the fusion cells as demonstrated by the proliferation of T-cells, the production of cytokines and the simultaneous induction of specific CTL responses. Significantly, CTL induced by dendritic cell/allogeneic BEL7402 fusion cells were able to kill autologous HCC cells by human leukocyte antigen-A2 restricted mechanisms. The results did not show significant difference between DC fusion with autologous hepatocellular carcinoma cells and DC fusion with allogeneic hepatocellular carcinoma cell line. CONCLUSIONS The fusion of allogeneic HCC cell line and autologous DCs may have applications in antitumor immunotherapy through cross-priming against shared tumor antigens and may provide a platform for adoptive immunotherapy.
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Affiliation(s)
- Jing-Yue Yang
- Department of Clinical Oncology, State Key Discipline of Cell Biology, Xijing Hospital, Fourth Military Medical University, Xian, Shaanxi, China
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7
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Cancer vaccine by fusions of dendritic and cancer cells. Clin Dev Immunol 2010; 2009:657369. [PMID: 20182533 PMCID: PMC2825547 DOI: 10.1155/2009/657369] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2009] [Accepted: 12/09/2009] [Indexed: 12/23/2022]
Abstract
Dendritic cells (DCs) are potent antigen-presenting cells and play a central role in the initiation and regulation of primary immune responses. Therefore, their use for the active immunotherapy against cancers has been studied with considerable interest. The fusion of DCs with whole tumor cells represents in many ways an ideal approach to deliver, process, and subsequently present a broad array of tumor-associated antigens, including those yet to be unidentified, in the context of DCs-derived costimulatory molecules. DCs/tumor fusion vaccine stimulates potent antitumor immunity in the animal tumor models. In the human studies, T cells stimulated by DC/tumor fusion cells are effective in lysis of tumor cells that are used as the fusion partner. In the clinical trials, clinical and immunological responses were observed in patients with advanced stage of malignant tumors after being vaccinated with DC/tumor fusion cells, although the antitumor effect is not as vigorous as in the animal tumor models. This review summarizes recent advances in concepts and techniques that are providing new impulses to DCs/tumor fusions-based cancer vaccination.
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Cheong SC, Blangenois I, Franssen JD, Servais C, Phan V, Trakatelli M, Bruyns C, Vile R, Velu T, Brandenburger A. Generation of cell hybrids via a fusogenic cell line. J Gene Med 2006; 8:919-28. [PMID: 16602137 DOI: 10.1002/jgm.906] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Hybrids obtained by fusion between tumour cells (TC) and dendritic cells (DC) have been proposed as anti-tumour vaccines because of their potential to combine the expression of tumour-associated antigens with efficient antigen presentation. The classical methods used for fusion, polyethylene glycol (PEG) and electrofusion, are cytotoxic and generate cell debris that can be taken up by DC rendering the identification of true hybrids difficult. METHODS We have established a stable cell line expressing a viral fusogenic membrane glycoprotein (FMG) that is not itself susceptible to fusion. This cell line has been used to generate hybrids and to evaluate the relevance of tools used for hybrid detection. RESULTS This FMG-expressing cell line promotes fusion between autologous or allogeneic TC and DC in any combination, generating 'tri-parental hybrids'. At least 20% of TC are found to be integrated into hybrids. CONCLUSIONS It is speculated that this tri-parental hybrid approach offers new possibilities to further modulate the anti-tumour effect of the DC/TC hybrids since it allows the expression of relevant immunostimulatory molecules by appropriate engineering of the fusogenic cell line.
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Affiliation(s)
- Siew Chiat Cheong
- Laboratory of Experimental and Cellular Cancerology, Université Libre de Bruxelles, IRIBHM-IBMM, 6041 Gosselies, Belgium
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9
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Koido S, Hara E, Homma S, Torii A, Toyama Y, Kawahara H, Watanabe M, Yanaga K, Fujise K, Tajiri H, Gong J, Toda G. Dendritic cells fused with allogeneic colorectal cancer cell line present multiple colorectal cancer-specific antigens and induce antitumor immunity against autologous tumor cells. Clin Cancer Res 2006; 11:7891-900. [PMID: 16278414 DOI: 10.1158/1078-0432.ccr-05-1330] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The aim of antitumor immunotherapy is to induce CTL responses against autologous tumors. Previous work has shown that fusion of human dendritic cells and autologous tumor cells induce CTL responses against autologous tumor cells in vitro. However, in the clinical setting of patients with colorectal carcinoma, a major difficulty is the preparation of sufficient amounts of autologous tumor cells. In the present study, autologous dendritic cells from patients with colorectal carcinoma were fused to allogeneic colorectal tumor cell line, COLM-6 (HLA-A2(-)/HLA-24(-)), carcinoembryonic antigen (CEA)(+), and MUC1(+) as an alternative strategy to deliver shared colorectal carcinoma antigens to dendritic cells. Stimulation of autologous T cells by the fusion cells generated with autologous dendritic cells (HLA-A2(+) and/or HLA-A24(+)) and allogeneic COLM-6 resulted in MHC class I- and MHC class II-restricted proliferation of CD4(+) and CD8(+) T cells, high levels of IFN-gamma production in both CD4(+) and CD8(+) T cells, and the simultaneous induction of CEA- and MUC1-specific CTL responses restricted by HLA-A2 and/or HLA-A24. Finally, CTL induced by dendritic cell/allogeneic COLM-6 fusion cells were able to kill autologous colorectal carcinoma by HLA-A2- and/or HLA-A24-restricted mechanisms. The demonstration of CTL activity against shared tumor-associated antigens using an allogeneic tumor cell line, COLM-6, provides that the presence of alloantigens does not prevent the development of CTL with activity against autologous colorectal carcinoma cells. The fusion of allogeneic colorectal carcinoma cell line and autologous dendritic cells could have potential applicability to the field of antitumor immunotherapy through the cross-priming against shared tumor antigens and provides a platform for adoptive immunotherapy.
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Affiliation(s)
- Shigeo Koido
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Kashiwa, Chiba, Japan.
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10
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González-Carmona MA, Märten A, Hoffmann P, Schneider C, Sievers E, Schmidt-Wolf IGH, Sauerbruch T, Caselmann WH. Patient-derived dendritic cells transduced with an a-fetoprotein-encoding adenovirus and co-cultured with autologous cytokine-induced lymphocytes induce a specific and strong immune response against hepatocellular carcinoma cells. Liver Int 2006; 26:369-79. [PMID: 16584401 DOI: 10.1111/j.1478-3231.2005.01235.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
BACKGROUND/AIMS Breaking immunologic tolerance towards the hepatocellular carcinoma (HCC)-associated alpha-fetoprotein (AFP) antigen is possible. The use of this potential for the treatment of immunocompromised HCC patients is limited. In this study, we analyzed whether dendritic cells (DCs) from HCC patients transduced with a human AFP (hAFP)-expressing adenovirus and co-cultured with cytokine-induced killer (CIK) cells can induce a strong specific immune response against HCC-cells. METHODS An hAFP-encoding adenovirus (Ad-hAFP) was generated. DCs from healthy donors or patients were transduced at a very high efficacy. Afterwards, DCs were co-cultured with autologous CIK-cells, and their ability to lyse HCC-cells was analyzed. RESULTS AFP-transduced DCs stimulated CIK cells strongly to lyse about 70% of AFP-expressing HCC cells. Cytotoxicity was significantly higher when lymphocytes were co-cultured with Ad-hAFP-transduced DCs than with Ad-mock-transduced DCs, indicating an AFP-specific immune response. More interestingly, CIK cells from patients with AFP-positive HCC could be stimulated to lyse AFP-expressing HCC cells as effectively as CIK cells from healthy individuals and stronger than CIK cells from patients without AFP-expressing HCC. CONCLUSIONS The data demonstrate that patient-derived DCs that were transduced with an AFP-expressing adenovirus and co-cultured with autologous CIK cells induce an AFP-specific, strong immune response against HCC cells. Therefore, this approach may have a potential for an adoptive and/or DC-based immunotherapy for HCC patients.
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MESH Headings
- Adenoviridae
- Adoptive Transfer
- Antigen Presentation/immunology
- Antigens, Differentiation, T-Lymphocyte
- Antigens, Neoplasm/immunology
- Antigens, Neoplasm/metabolism
- Carcinoma, Hepatocellular/immunology
- Carcinoma, Hepatocellular/therapy
- Coculture Techniques
- Cytokines/immunology
- Cytokines/metabolism
- Cytotoxicity, Immunologic
- Dendritic Cells/immunology
- Dendritic Cells/metabolism
- Flow Cytometry
- HLA Antigens/immunology
- HLA Antigens/metabolism
- Humans
- Immunophenotyping
- Killer Cells, Natural/immunology
- Killer Cells, Natural/metabolism
- Liver Neoplasms/immunology
- Liver Neoplasms/therapy
- Lymphocyte Activation
- Transduction, Genetic
- Transplantation, Autologous
- Tumor Cells, Cultured
- alpha-Fetoproteins/immunology
- alpha-Fetoproteins/metabolism
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11
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Hock BD, Roberts G, McKenzie JL, Gokhale P, Salm N, McLellan AD, Patton NW, Roake JA. Exposure to the electrofusion process can increase the immunogenicity of human cells. Cancer Immunol Immunother 2005; 54:880-90. [PMID: 15926080 PMCID: PMC11032802 DOI: 10.1007/s00262-004-0659-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2004] [Accepted: 11/24/2004] [Indexed: 10/25/2022]
Abstract
The cellular products obtained following electrofusion (EF) of dendritic cells (DC) and tumour cells have shown promise as cancer vaccines. The immunogenicity of these preparations has been attributed to the presence of small numbers of DC-tumour hybrids and the contribution of the non-hybrid tumour cells present has received little attention. In this report, we investigated the effect of the EF process on the immunogenicity of allogeneic human cells, in particular the colorectal cell line, SW620. EF conditions were optimised to yield the maximum number of DC-SW620 hybrids co-expressing tumour associated antigen (TAA) and DC associated antigens. Exposure of SW620 to EF induced significant increases (P < 0.05) in apoptosis and necrosis. Pre-exposure of SW620 to the EF buffer alone [0.3 M glucose, 0.1 mM Ca(CH3COO)2 and 0.5 mM Mg(CH3COO)(2)] resulted in significant increases in TAA uptake by DC during co-culture (P < 0.05). DC phenotype was, however, not altered by exposure to EF treated tumour cells. In co-cultures of PBMC responders with SW620, the levels of IFNgamma release and cytotoxic activity were significantly increased (P < 0.05) by pre-exposure of the SW620 to EF. Pre-exposure of allogeneic non-T cells, the colorectal cell line Lovo and a breast cancer cell line (MCF7) to EF also significantly (P < 0.05) increased the levels of IFNgamma release by responding PBMC. These results demonstrate that the EF process itself can increase the immunogenicity of at least some human cell types independently of hybrid formation. These findings suggest that EF protocols should be evaluated with regard to the possibility that DC-tumour hybrids may not contribute all, or even most, of the immunostimulatory capacity present in preparations of EF treated cells.
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Affiliation(s)
- Barry D Hock
- Haematology Research Group, Christchurch School Of Medicine, PO Box 4345, Christchurch, New Zealand.
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12
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Xu F, Ye YJ, Cui ZR, Wang S. Allogeneic Dendritomas Induce Anti-tumour Immunity Against Metastatic Colon Cancer. Scand J Immunol 2005; 61:364-9. [PMID: 15853920 DOI: 10.1111/j.1365-3083.2005.01572.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Colon cancer (CC) is one of the most common malignancies in the Western world. Although surgical resection is the first choice worldwide, at this point an effective approach for the treatment of patients with metastasis and cancer recurrence post-operation has not yet been found. The aim of this study was to investigate the role of the allogeneic dendritomas from fusion of dendritic cells (DC) and metastatic CC cells in the activation of anti-tumour immunity against metastatic CC. Dendritomas were generated by fused allogeneic human peripheral blood DC with metastatic CC cells using 50% polyethylene glycol. The proliferation of the T cells and the toxicity of the cytotoxic T lymphocytes were observed after T cell pulsed with allogeneic dendritomas. The activated ratios of CD4+T helper 1 and CD8+Tc1 cells were about 51.55 and 65.60% after T cells were mixed with fusions for 24 h, which higher than those of controls. The proliferation of T cells were significantly higher than those of control after T cell pulsed with dendritomas (P < 0.01). Significantly, the activated CD8+ T lymphocytes effectively lysed the CC cells. These results demonstrate that allogeneic dendritomas activate T-cell responses against metastatic CC cells.
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Affiliation(s)
- F Xu
- Division of Surgical Oncology and Division of Gastrointestinal Surgery, Peking University People's Hospital, Beijing, China P.R
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13
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Hiraoka K, Yamamoto S, Otsuru S, Nakai S, Tamai K, Morishita R, Ogihara T, Kaneda Y. Enhanced tumor-specific long-term immunity of hemagglutinating [correction of hemaggluttinating] virus of Japan-mediated dendritic cell-tumor fused cell vaccination by coadministration with CpG oligodeoxynucleotides. THE JOURNAL OF IMMUNOLOGY 2004; 173:4297-307. [PMID: 15383558 DOI: 10.4049/jimmunol.173.7.4297] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Immunization with dendritic cells (DCs) using various Ag-loading approaches has shown promising results in tumor-specific immunotherapy and immunoprevention. Fused cells (FCs) that are generated from DCs and tumor cells are one of effective cancer vaccines because both known and unknown tumor Ags are presented on the FCs and recognized by T cells. In this study, we attempted to augment antitumor immunity by the combination of DC-tumor FC vaccination with immunostimulatory oligodeoxynucleotides containing CpG motif (CpG ODN). Murine DCs were fused with syngeneic tumor cells ex vivo using inactivated hemagglutinating virus of Japan (Sendai virus). Mice were intradermally (i.d.) immunized with FCs and/or CpG ODN. Coadministration of CpG ODN enhanced the phenotypical maturation of FCs and unfused DCs, and the production of Th1 cytokines, such as IFN-gamma and IL-12, leading to the induction of tumor-specific CTLs without falling into T cell anergy. In addition, immunization with FCs + CpG ODN provided significant protection against lethal s.c. tumor challenge and spontaneous lung metastasis compared with that with either FCs or CpG ODN alone. Furthermore, among mice that rejected tumor challenge, the mice immunized with FCs + CpG ODN, but not the mice immunized with FCs or CpG ODN alone, completely rejected tumor rechallenge, indicating that CpG ODN provided long-term maintenance of tumor-specific immunity induced by FCs. Thus, the combination of DC-tumor FCs and CpG ODN is an effective and feasible cancer vaccine to prevent the generation and recurrence of cancers.
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MESH Headings
- Adjuvants, Immunologic/administration & dosage
- Adjuvants, Immunologic/genetics
- Adjuvants, Immunologic/therapeutic use
- Animals
- Cancer Vaccines/administration & dosage
- Cancer Vaccines/immunology
- Cancer Vaccines/therapeutic use
- Cell Differentiation/immunology
- Cell Fusion/methods
- Cell Line, Tumor
- Cells, Cultured
- CpG Islands/immunology
- Cytokines/biosynthesis
- Dendritic Cells/cytology
- Dendritic Cells/immunology
- Dendritic Cells/metabolism
- Dendritic Cells/transplantation
- Graft Rejection/immunology
- Immunophenotyping
- Injections, Intradermal
- Lung Neoplasms/immunology
- Lung Neoplasms/prevention & control
- Lung Neoplasms/secondary
- Male
- Melanoma, Experimental/immunology
- Melanoma, Experimental/pathology
- Melanoma, Experimental/therapy
- Mice
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Neoplasm Transplantation/immunology
- Oligodeoxyribonucleotides/administration & dosage
- Oligodeoxyribonucleotides/immunology
- Oligodeoxyribonucleotides/therapeutic use
- Sendai virus/immunology
- Th1 Cells/immunology
- Th1 Cells/metabolism
- Vaccines, Combined/administration & dosage
- Vaccines, Combined/immunology
- Vaccines, Combined/therapeutic use
- Vaccines, DNA/administration & dosage
- Vaccines, DNA/immunology
- Vaccines, DNA/therapeutic use
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Affiliation(s)
- Kazuya Hiraoka
- Division of Gene Therapy Science, Department of Geriatric Medicine, Graduate School of Medicine, Osaka University, Suita, Japan
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14
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Chan RCF, Pang XW, Wang YD, Chen WF, Xie Y. Transduction of dendritic cells with recombinant adenovirus encoding HCA661 activates autologous cytotoxic T lymphocytes to target hepatoma cells. Br J Cancer 2004; 90:1636-43. [PMID: 15083197 PMCID: PMC2409703 DOI: 10.1038/sj.bjc.6601706] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Transduction of recombinant adenovirus into dendritic cells (DCs) is a promising new tool for cancer vaccine development. Here, we report that an adenovirus vector carrying hepatocellular carcinoma (HCC) antigen HCA661 and infected into DCs generates T-cell immunity against hepatoma cells. HCA661 is a novel cancer/testis (CT) antigen screened by SEREX from sera of an HCC patient. We constructed a recombinant adenovirus expressing the full-length cDNA of HCA661 gene and then transduced immature DCs, which had been generated with GM-CSF and IL-4 from peripheral blood mononuclear cell of HLA-A2+ healthy donors. The resulting adenovirus-transduced DCs differentiated in the presence of monocyte-conditioned medium and poly [I] : poly [C], expressing the surface markers of mature DCs, including CD83, CD80, CD86 and HLA-DR. After maturation, the transduced DCs transcribed HCA661 mRNA and were able to prime the naïve T cells to become cytotoxic T lymphocytes (CTLs). Intracellular flow cytometry and enzyme-linked immunospot assay showed that these CTLs were able to target a hepatoma cell line, HepG2, which is HLA-A2 and HCA661 positive. In summary, we found that this recombinant adenovirus can help to induce DC maturation and these mature DCs can activate T cells to target hepatoma cells. Therefore, this recombinant adenovirus may have potential for use in liver cancer immunotherapy.
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Affiliation(s)
- R C-F Chan
- Department of Biology, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - X-W Pang
- Department of Immunology, Peking University Health Science Centre, Beijing, 100083, China
| | - Y-D Wang
- Department of Immunology, Peking University Health Science Centre, Beijing, 100083, China
| | - W-F Chen
- Department of Immunology, Peking University Health Science Centre, Beijing, 100083, China
- Department of Immunology, Peking University Health Science Centre, Beijing, 100083, China. E-mail:
| | - Y Xie
- Department of Biology, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
- Department of Immunology, Peking University Health Science Centre, Beijing, 100083, China. E-mail:
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15
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Zhao HL, Liu C, Zhao AG. Differentiation of hepatocellular carcinoma SMMC-7721 cell line induced by Chinese medicine recipe Weichangan. Shijie Huaren Xiaohua Zazhi 2003; 11:1345-1348. [DOI: 10.11569/wcjd.v11.i9.1345] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM To observe the differentiation in hepatocellular carcinoma cell line induced by Chinese medicine recipe Weichangan.
METHODS Weichangan, contrasted by the retinoic acid and distilled water, was made by using serum pharmacological method. The inhibition on the growth of SMMC-7721 cell line by Weichangan was observed through the method of MTT and Alamar Blue. Radioimmunoassay was applied to determine the concentration of a-fetoprotein and albumin secreted by the incubated cells. Western blot method was used to detect the mutant p53, p16 and p21 protein expression in SMMC-7721 cell line.
RESULTS MTT assay showed both Weichangan and serum retinoic acid had inhibiting effect on the proliferation of human hepatocellular carcinoma SMMC-7721 cell line. Weichangan reached its maximal inhibition effect after 48 hours, while the effect of retinoic acid decreased gradually after 48 hours. Alamar Blue method showed that significant decrease was found in serum Weihangan after 16 hours compared with that in the control. After 32 hours, the decrease induced by Alamar Blue was more significant than that in cells incubated with serum Weichangan compared with those incubated in serum retinoic acid, indicating the gradual and durable action of Weichangan recipe. The decreased amount (11.4±1.4 mg/L vs 17.2±1.1 mg/L, P =0.036) of a-fetoprotein and increased amount (0.40±0.02 mg/L vs 0.29±0.01 mg/L, P =0.043) of albumin were found in the cells incubated in serum Weichangan. Western blot method showed decreased expression of p53 protein and increased expression of p16 and p21 protein in cells incubated in serum Weichangan.
CONCLUSION The results suggest that Weichangan inhibits the growth of SMMC-7721 cell line and induces the differentiation in this hepatocellular carcinoma cell line. The effect on p53, p16 and p21 may be the mechanisms of Weichangan in inducing the differentiation of this cell lines.
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Affiliation(s)
- Hai-Lei Zhao
- No.1 Oncology Department of Longhua Hospital, affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Cheng Liu
- Institute of Liver Diseases, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Ai-Guang Zhao
- No.1 Oncology Department of Longhua Hospital, affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
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