1
|
Wu M, Ke Q, Bi J, Li X, Huang S, Liu Z, Ge L. Substantially Improved Electrofusion Efficiency of Hybridoma Cells: Based on the Combination of Nanosecond and Microsecond Pulses. Bioengineering (Basel) 2022; 9:bioengineering9090450. [PMID: 36134996 PMCID: PMC9495357 DOI: 10.3390/bioengineering9090450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/04/2022] [Accepted: 09/05/2022] [Indexed: 11/26/2022] Open
Abstract
As the initial antibody technology, the preparation of hybridoma cells has been widely used in discovering antibody drugs and is still in use. Various antibody drugs obtained through this technology have been approved for treating human diseases. However, the key to producing hybridoma cells is efficient cell fusion. High-voltage microsecond pulsed electric fields (μsHVPEFs) are currently one of the most common methods used for cell electrofusion. Nevertheless, the membrane potential induced by the external microsecond pulse is proportional to the diameter of the cell, making it difficult to fuse cells of different sizes. Although nanosecond pulsed electric fields (nsPEFs) can achieve the fusion of cells of different sizes, due to the limitation of pore size, deoxyribonucleic acid (DNA) cannot efficiently pass through the cell pores produced by nsPEFs. This directly causes the significant loss of the target gene and reduces the proportion of positive cells after fusion. To achieve an electric field environment independent of cell size and enable efficient cell fusion, we propose a combination of nanosecond pulsed electric fields and low-voltage microsecond pulsed electric fields (ns/μsLVPEFs) to balance the advantages and disadvantages of the two techniques. The results of fluorescence experiments and hybridoma culture experiments showed that after lymphocytes and myeloma cells were stimulated by a pulse (ns/μsLVPEF, μsHVPEF, and control), compared with μsHVPEF, applying ns/μsLVPEF at the same energy could increase the cell fusion efficiency by 1.5–3.0 times. Thus far, we have combined nanosecond and microsecond pulses and provided a practical solution that can significantly increase cell fusion efficiency. This efficient cell fusion method may contribute to the further development of hybridoma technology in electrofusion.
Collapse
Affiliation(s)
- Meng Wu
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
- Chongqing Academy of Animal Sciences, Chongqing 402460, China
| | - Qiang Ke
- Nanjing Research Institute of Electronics Technology, Nanjing 210039, China
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China
- School of Nuclear Engineering, Purdue University, West Lafayette, IN 47906, USA
- Correspondence: (Q.K.); (Z.L.); (L.G.)
| | - Jinhao Bi
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130118, China
- School of Life Sciences, Westlake University, Hangzhou 310024, China
| | - Xinhao Li
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China
| | - Shuheng Huang
- College of Bioengineering, Chongqing University, Chongqing 400044, China
- Department of Biochemistry, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Zuohua Liu
- Chongqing Academy of Animal Sciences, Chongqing 402460, China
- Correspondence: (Q.K.); (Z.L.); (L.G.)
| | - Liangpeng Ge
- Chongqing Academy of Animal Sciences, Chongqing 402460, China
- Correspondence: (Q.K.); (Z.L.); (L.G.)
| |
Collapse
|
2
|
Guiren Fritah H, Rovelli R, Lai-Lai Chiang C, Kandalaft LE. The current clinical landscape of personalized cancer vaccines. Cancer Treat Rev 2022; 106:102383. [DOI: 10.1016/j.ctrv.2022.102383] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 03/20/2022] [Indexed: 12/11/2022]
|
3
|
Yang J, Shangguan J, Eresen A, Li Y, Wang J, Zhang Z. Dendritic cells in pancreatic cancer immunotherapy: Vaccines and combination immunotherapies. Pathol Res Pract 2019; 215:152691. [PMID: 31676092 DOI: 10.1016/j.prp.2019.152691] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 10/04/2019] [Accepted: 10/09/2019] [Indexed: 02/06/2023]
Abstract
Despite significant advances over the past decades of research, pancreatic cancer (PC) continues to have the worst 5-year survival of any malignancy. Dendritic cells (DCs) are the most potent professional antigen-presenting cells and are involved in the induction and regulation of antitumor immune responses. DC-based immunotherapy has been used in clinical trials for PC. Although safety, efficacy, and immune activation were reported in patients with PC, DC vaccines have not yet fulfilled their promise. Additional strategies for combinatorial approaches aimed to augment and sustain the antitumor specific immune response elicited by DC vaccines are currently being investigated. Here, we will discuss DC vaccination immunotherapies that are currently under preclinical and clinical investigation and potential combination approaches for treating and improving the survival of PC patients.
Collapse
Affiliation(s)
- Jia Yang
- Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Junjie Shangguan
- Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Aydin Eresen
- Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Yu Li
- Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA; Department of General Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Jian Wang
- Department of Radiology, Southwest Hospital, Chongqing, China.
| | - Zhuoli Zhang
- Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA; Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Chicago, IL, USA.
| |
Collapse
|
4
|
He W, Huang L, Feng Y, Liang F, Ding W, Wang W. Highly integrated microfluidic device for cell pairing, fusion and culture. BIOMICROFLUIDICS 2019; 13:054109. [PMID: 31893009 PMCID: PMC6932852 DOI: 10.1063/1.5124705] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 09/30/2019] [Indexed: 05/02/2023]
Abstract
In this study, we proposed a microfluidic device with compact structures integrating multiple modalities for cell capture, pairing, fusion, and culture. The microfluidic device is composed of upper and lower parts. The lower part configured with electrodes and capture wells is used for cell trapping/pairing/fusion, while the upper part configured with corresponding culture wells is used for cell culture. Dielectrophoresis is used to enable accurate cell trapping and pairing in capture wells. Moreover, the paired cells are fused flexibly by either electrical pulses or polyethylene glycol (PEG) buffer. The fused cells are then transferred to culture wells for on-chip culture simply by flipping the device. Using the device and HeLa cells, we demonstrated pairing efficiency of ∼78% and fusion efficiencies of ∼ 26% for electrical fusion or ∼ 21% for PEG fusion, and successful cell proliferation and migration after 72 h on-chip culture. We believe that this multifunction-integrated but structure-simplified microfluidic device would largely facilitate cell fusion oriented tasks.
Collapse
Affiliation(s)
- Weihua He
- State Key Laboratory of Precision Measurement Technology and Instrument, Department of Precision Instrument, Tsinghua University, Beijing 100084, China
| | - Liang Huang
- School of Instrument Science and Opto-Electronics Engineering, Hefei University of Technology, Hefei 230009, China
| | - Yongxiang Feng
- State Key Laboratory of Precision Measurement Technology and Instrument, Department of Precision Instrument, Tsinghua University, Beijing 100084, China
| | - Fei Liang
- State Key Laboratory of Precision Measurement Technology and Instrument, Department of Precision Instrument, Tsinghua University, Beijing 100084, China
| | - Wei Ding
- State Key Laboratory of Precision Measurement Technology and Instrument, Department of Precision Instrument, Tsinghua University, Beijing 100084, China
| | - Wenhui Wang
- State Key Laboratory of Precision Measurement Technology and Instrument, Department of Precision Instrument, Tsinghua University, Beijing 100084, China
| |
Collapse
|
5
|
Kanduser M, Kokalj Imsirovic M, Usaj M. The Effect of Lipid Antioxidant α-Tocopherol on Cell Viability and Electrofusion Yield of B16-F1 Cells In Vitro. J Membr Biol 2019; 252:105-114. [DOI: 10.1007/s00232-019-00059-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 01/16/2019] [Indexed: 10/27/2022]
|
6
|
Koido S. Dendritic-Tumor Fusion Cell-Based Cancer Vaccines. Int J Mol Sci 2016; 17:ijms17060828. [PMID: 27240347 PMCID: PMC4926362 DOI: 10.3390/ijms17060828] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Revised: 05/19/2016] [Accepted: 05/23/2016] [Indexed: 12/20/2022] Open
Abstract
Dendritic cells (DCs) are potent antigen-presenting cells (APCs) that play a critical role in the induction of antitumor immunity. Therefore, various strategies have been developed to deliver tumor-associated antigens (TAAs) to DCs as cancer vaccines. The fusion of DCs and whole tumor cells to generate DC-tumor fusion cells (DC-tumor FCs) is an alternative strategy to treat cancer patients. The cell fusion method allows DCs to be exposed to the broad array of TAAs originally expressed by whole tumor cells. DCs then process TAAs endogenously and present them through major histocompatibility complex (MHC) class I and II pathways in the context of costimulatory molecules, resulting in simultaneous activation of both CD4⁺ and CD8⁺ T cells. DC-tumor FCs require optimized enhanced immunogenicity of both DCs and whole tumor cells. In this context, an effective fusion strategy also needs to produce immunogenic DC-tumor FCs. We discuss the potential ability of DC-tumor FCs and the recent progress in improving clinical outcomes by DC-tumor FC-based cancer vaccines.
Collapse
Affiliation(s)
- Shigeo Koido
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Kashiwa Hospital, 277-8567 Chiba, Japan.
| |
Collapse
|
7
|
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.
Collapse
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
| |
Collapse
|
8
|
Ophir E, Bobisse S, Coukos G, Harari A, Kandalaft LE. Personalized approaches to active immunotherapy in cancer. Biochim Biophys Acta Rev Cancer 2015; 1865:72-82. [PMID: 26241169 DOI: 10.1016/j.bbcan.2015.07.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 07/14/2015] [Accepted: 07/27/2015] [Indexed: 11/28/2022]
Abstract
Immunotherapy is emerging as a promising anti-cancer curative modality. However, in contrast to recent advances obtained employing checkpoint blockade agents and T cell therapies, clinical efficacy of therapeutic cancer vaccines is still limited. Most vaccination attempts in the clinic represent "off-the shelf" approaches since they target common "self" tumor antigens, shared among different patients. In contrast, personalized approaches of vaccination are tailor-made for each patient and in spite being laborious, hold great potential. Recent technical advancement enabled the first steps in the clinic of personalized vaccines that target patient-specific mutated neo-antigens. Such vaccines could induce enhanced tumor-specific immune response since neo-antigens are mutation-derived antigens that can be recognized by high affinity T cells, not limited by central tolerance. Alternatively, the use of personalized vaccines based on whole autologous tumor cells, overcome the need for the identification of specific tumor antigens. Whole autologous tumor cells could be administered alone, pulsed on dendritic cells as lysate, DNA, RNA or delivered to dendritic cells in-vivo through encapsulation in nanoparticle vehicles. Such vaccines may provide a source for the full repertoire of the patient-specific tumor antigens, including its private neo-antigens. Furthermore, combining next-generation personalized vaccination with other immunotherapy modalities might be the key for achieving significant therapeutic outcome.
Collapse
Affiliation(s)
- Eran Ophir
- Ludwig Center for Cancer Research at the University of Lausanne, Department of Oncology, University Hospital of Lausanne, Lausanne, Switzerland
| | - Sara Bobisse
- Ludwig Center for Cancer Research at the University of Lausanne, Department of Oncology, University Hospital of Lausanne, Lausanne, Switzerland
| | - George Coukos
- Ludwig Center for Cancer Research at the University of Lausanne, Department of Oncology, University Hospital of Lausanne, Lausanne, Switzerland; Ovarian Cancer Research Center, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Alexandre Harari
- Ludwig Center for Cancer Research at the University of Lausanne, Department of Oncology, University Hospital of Lausanne, Lausanne, Switzerland; Center of Experimental Therapeutics, Ludwig Center for Cancer Research, Department of Oncology, University of Lausanne, Lausanne, Switzerland
| | - Lana E Kandalaft
- Ludwig Center for Cancer Research at the University of Lausanne, Department of Oncology, University Hospital of Lausanne, Lausanne, Switzerland; Center of Experimental Therapeutics, Ludwig Center for Cancer Research, Department of Oncology, University of Lausanne, Lausanne, Switzerland; Ovarian Cancer Research Center, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
| |
Collapse
|
9
|
Cicchelero L, Denies S, Devriendt B, de Rooster H, Sanders NN. Can dendritic cells improve whole cancer cell vaccines based on immunogenically killed cancer cells? Oncoimmunology 2015; 4:e1048413. [PMID: 26587315 DOI: 10.1080/2162402x.2015.1048413] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Revised: 04/30/2015] [Accepted: 05/01/2015] [Indexed: 12/23/2022] Open
Abstract
Immunogenic cell death (ICD) offers interesting opportunities in cancer cell (CC) vaccine manufacture, as it increases the immunogenicity of the dead CC. Furthermore, fusion of CCs with dendritic cells (DCs) is considered a superior method for generating whole CC vaccines. Therefore, in this work, we determined in naive mice whether immunogenically killed CCs per se (CC vaccine) elicit an antitumoral immune response different from the response observed when immunogenically killed CCs are associated with DCs through fusion (fusion vaccine) or through co-incubation (co-incubation vaccine). After tumor inoculation, the type of immune response in the prophylactically vaccinated mice differed between the groups. In more detail, fusion vaccines elicited a humoral anticancer response, whereas the co-incubation and CC vaccine mainly induced a cellular response. Despite these differences, all three approaches offered a prophylactic protection against tumor development in the murine mammary carcinoma model. In summary, it can be concluded that whole CC vaccines based on immunogenically killed CCs may not necessarily require association with DCs to elicit a protective anticancer immune response. If this finding can be endorsed in other cancer models, the manufacture of CC vaccines would greatly benefit from this new insight, as production of DC-based vaccines is laborious, time-consuming and expensive.
Collapse
Affiliation(s)
- Laetitia Cicchelero
- Laboratory of Gene Therapy, Department of Nutrition, Genetics and Ethology; Faculty of Veterinary Medicine; Ghent University ; Merelbeke, Belgium
| | - Sofie Denies
- Laboratory of Gene Therapy, Department of Nutrition, Genetics and Ethology; Faculty of Veterinary Medicine; Ghent University ; Merelbeke, Belgium
| | - Bert Devriendt
- Laboratory of Immunology, Department of Virology, Parasitology and Immunology; Faculty of Veterinary Medicine; Ghent University , Merelbeke, Belgium
| | - Hilde de Rooster
- Small Animal Hospital, Department of Medicine and Clinical Biology of Small Animals; Faculty of Veterinary Medicine; Ghent University , Merelbeke, Belgium
| | - Niek N Sanders
- Laboratory of Gene Therapy, Department of Nutrition, Genetics and Ethology; Faculty of Veterinary Medicine; Ghent University ; Merelbeke, Belgium
| |
Collapse
|
10
|
Abstract
Cell fusion has become a routine laboratory technique for generating hybrids with diverse genetic and epigenetic properties, and has been used for many different applications. Here, we describe a microfluidics based cell pairing and fusion method that affords controllable formation of cell pairs and high efficiency fusion. The microfluidic device uses passive hydrodynamics and multistep cell loading procedure to immobilize and pair thousands of cells in a dense array of weir-based traps. Once paired, cells can be fused either using chemical or electrical fusion protocols, and provide twofold to tenfold improvement in fusion yields in comparison to commercial systems. The hybrids can be harvested from the device for culture and further studies.
Collapse
|
11
|
Koido S, Homma S, Okamoto M, Namiki Y, Takakura K, Uchiyama K, Kajihara M, Arihiro S, Imazu H, Arakawa H, Kan S, Komita H, Ito M, Ohkusa T, Gong J, Tajiri H. Fusions between dendritic cells and whole tumor cells as anticancer vaccines. Oncoimmunology 2014; 2:e24437. [PMID: 23762810 PMCID: PMC3667916 DOI: 10.4161/onci.24437] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2013] [Revised: 03/24/2013] [Accepted: 03/25/2013] [Indexed: 01/11/2023] Open
Abstract
Various strategies have been developed to deliver tumor-associated antigens (TAAs) to dendritic cells (DCs). Among these, the fusion of DCs and whole cancer cells can process a broad array of TAAs, including hitherto unidentified molecules, and present them in complex with MHC Class I and II molecules and in the context of co-stimulatory signals. DC-cancer cell fusions have been shown to stimulate potent antitumor immune responses in animal models. In early clinical trials, however, the antitumor effects of DC-cancer cell fusions are not as vigorous as in preclinical settings. This mini-review summarizes recent advances in anticancer vaccines based on DC-cancer cell fusions.
Collapse
Affiliation(s)
- Shigeo Koido
- Division of Gastroenterology and Hepatology; Department of Internal Medicine; The Jikei University School of Medicine; Tokyo, Japan ; Institute of Clinical Medicine and Research; The Jikei University School of Medicine; Tokyo, Japan ; Department of Oncology, Institute of DNA Medicine; The Jikei University School of Medicine; Tokyo, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Fujihira A, Suzuki T, Chang MO, Moriyama T, Kitajima M, Takaku H. Antitumor effects of baculovirus-infected dendritic cells against human pancreatic carcinoma. Gene Ther 2014; 21:849-54. [PMID: 25009006 DOI: 10.1038/gt.2014.59] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Revised: 05/06/2014] [Accepted: 05/27/2014] [Indexed: 11/09/2022]
Abstract
Recently, we showed that baculovirus (BV)-infected dendritic cells (DCs) (BV-DCs) induced antitumor immunity against established tumors in mice. These antitumor effects were CD8(+) T-cell and natural killer (NK) cell dependent but CD4(+) T-cell independent. In the current study, we examined the antitumor effect of BV-DCs on human pancreatic cancer cells (AsPC-1). After treatment with BV-infected bone marrow-derived dendritic cells (BMDCs), human pancreatic tumors caused by AsPC-1 cells in a nude mouse model were significantly reduced in size, and the survival of the mice was improved compared with that of non-immature BMDC (iDC)- and BV-DC-immunized mice. We also found that wild-type BV could activate human DCs (HDCs) and that NK cells were activated by BV-infected HDCs (BHDCs). Our findings show that BV-DCs can induce antitumor immunity, which paves the way for the use of this technique as an effective tool for DC immunotherapy against malignancies.
Collapse
Affiliation(s)
- A Fujihira
- Department of Life and Environmental Sciences, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba, Japan
| | - T Suzuki
- Department of Life and Environmental Sciences, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba, Japan
| | - M O Chang
- High Technology Research Center, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba, Japan
| | - T Moriyama
- Department of Life and Environmental Sciences, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba, Japan
| | - M Kitajima
- Immunology Program, Benaroya Research Institute at Virginia Mason, Seattle, WA, USA
| | - H Takaku
- 1] Department of Life and Environmental Sciences, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba, Japan [2] High Technology Research Center, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba, Japan [3] Research Institute, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba, Japan
| |
Collapse
|
13
|
Koido S, Homma S, Kan S, Takakura K, Namiki Y, Kobayashi H, Ito Z, Uchiyama K, Kajihara M, Arihiro S, Arakawa H, Okamoto M, Ohkusa T, Gong J, Tajiri H. Induction of antigen-specific cytotoxic T lymphocytes by fusion cells generated from allogeneic plasmacytoid dendritic and tumor cells. Int J Oncol 2014; 45:470-8. [PMID: 24819411 DOI: 10.3892/ijo.2014.2433] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Accepted: 04/17/2014] [Indexed: 11/06/2022] Open
Abstract
Previous work has demonstrated that fusion cells generated from autologous monocyte-derived dendritic cells (MoDCs) and whole tumor cells induce efficient antigen-specific cytotoxic T lymphocytes. A major limitation to the use of this strategy is the availability of adequate amounts of autologous tumor cells. Moreover, MoDCs from cancer patients are often defective in their antigen-processing and presentation machinery. In this study, two types of allogeneic cells, a leukemia plasmacytoid dendritic cell (pDC) line (PMDC05) and pancreatic cancer cell lines (PANC-1 or MIA PaCa-2), were fused instead of autologous MoDCs and tumor cells. We created four types of pDC/tumor fusion cells by alternating fusion partners and treating with lipopolysaccharide (LPS): i) PMDC05 fused with PANC-1 (pDC/PANC-1), ii) PMDC05 fused with MIA PaCa-2 (pDC/MIA PaCa-2), iii) LPS-stimulated pDC/PANC-1 (LPS-pDC/PANC-1) and iv) LPS-stimulated pDC/MIA PaCa-2 (LPS-pDC/MIA PaCa-2) and examined their antitumor immune responses. The LPS-pDC/tumor cell fusions were the most active, as demonstrated by their: i) upregulated expression of HLA-DR and CD86 on a per-fusion-cell basis, ii) increased production of IL-12p70, iii) generation of a higher percentage of IFN-γ-producing CD4⁺ and CD8⁺ T cells and iv) augmented induction of MUC1-specific CD8⁺ T cells that lyse target tumor cells. This study provides the first evidence for an in vitro induction of antigen-specific cytotoxic T lymphocytes by LPS-stimulated fusion cells generated from leukemia plasmacytoid DCs and tumor cells and suggests that this strategy has potential applicability to the field of adoptive immunotherapy.
Collapse
Affiliation(s)
- Shigeo Koido
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine, Chiba 277-8564, Japan
| | - Sadamu Homma
- Department of Oncology, Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Shin Kan
- Department of Oncology, Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Kazuki Takakura
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine, Chiba 277-8564, Japan
| | - Yoshihisa Namiki
- Institute of Clinical Medicine and Research, Jikei University School of Medicine, Chiba 277-8564, Japan
| | - Hiroko Kobayashi
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine, Chiba 277-8564, Japan
| | - Zensho Ito
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine, Chiba 277-8564, Japan
| | - Kan Uchiyama
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine, Chiba 277-8564, Japan
| | - Mikio Kajihara
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine, Chiba 277-8564, Japan
| | - Seiji Arihiro
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine, Chiba 277-8564, Japan
| | - Hiroshi Arakawa
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine, Chiba 277-8564, Japan
| | - Masato Okamoto
- Division of Cellular Signaling, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Toshifumi Ohkusa
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine, Chiba 277-8564, Japan
| | - Jianlin Gong
- Department of Medicine, Boston University School of Medicine, Boston, MA 02118, USA
| | - Hisao Tajiri
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine, Chiba 277-8564, Japan
| |
Collapse
|
14
|
Cicchelero L, de Rooster H, Sanders NN. Various ways to improve whole cancer cell vaccines. Expert Rev Vaccines 2014; 13:721-35. [PMID: 24758597 DOI: 10.1586/14760584.2014.911093] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Immunotherapy based on whole cancer cell vaccines is regarded as a promising avenue for cancer treatment. However, limited efficacy in the first human clinical trials calls for more optimized whole cancer cell vaccines and better patient selection. It is suggested that whole cancer cell vaccines consist preferably of immunogenically killed autologous cancer stem cells associated with dendritic cells. Adjuvants should stimulate both immune effector cells and memory cells, which could be achieved through their correct dosage and timing of administration. There are indications that whole cancer cell vaccination is less effective in patients who are immunocompromised, who have specific genetic defects in their immune or cancer cells, as well as in patients in an advanced cancer stage. However, such patients form the bulk of enrolled patients in clinical trials, prohibiting an objective evaluation of the true potential of whole cancer cell immunotherapy. Each key point will be discussed.
Collapse
Affiliation(s)
- Laetitia Cicchelero
- Laboratory of Gene Therapy, Department of Nutrition, Genetics and Ethology, Faculty of Veterinary Medicine, Ghent University, Heidestraat 19, B-9820 Merelbeke, Belgium
| | | | | |
Collapse
|
15
|
Purified dendritic cell-tumor fusion hybrids supplemented with non-adherent dendritic cells fraction are superior activators of antitumor immunity. PLoS One 2014; 9:e86772. [PMID: 24466232 PMCID: PMC3900640 DOI: 10.1371/journal.pone.0086772] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2013] [Accepted: 12/18/2013] [Indexed: 11/19/2022] Open
Abstract
Background Strong evidence supports the DC-tumor fusion hybrid vaccination strategy, but the best fusion product components to use remains controversial. Fusion products contain DC-tumor fusion hybrids, unfused DCs and unfused tumor cells. Various fractions have been used in previous studies, including purified hybrids, the adherent cell fraction or the whole fusion mixture. The extent to which the hybrids themselves or other components are responsible for antitumor immunity or which components should be used to maximize the antitumor immunity remains unknown. Methods Patient-derived breast tumor cells and DCs were electro-fused and purified. The antitumor immune responses induced by the purified hybrids and the other components were compared. Results Except for DC-tumor hybrids, the non-adherent cell fraction containing mainly unfused DCs also contributed a lot in antitumor immunity. Purified hybrids supplemented with the non-adherent cell population elicited the most powerful antitumor immune response. After irradiation and electro-fusion, tumor cells underwent necrosis, and the unfused DCs phagocytosed the necrotic tumor cells or tumor debris, which resulted in significant DC maturation. This may be the immunogenicity mechanism of the non-adherent unfused DCs fraction. Conclusions The non-adherent cell fraction (containing mainly unfused DCs) from total DC/tumor fusion products had enhanced immunogenicity that resulted from apoptotic/necrotic tumor cell phagocytosis and increased DC maturation. Purified fusion hybrids supplemented with the non-adherent cell population enhanced the antitumor immune responses, avoiding unnecessary use of the tumor cell fraction, which has many drawbacks. Purified hybrids supplemented with the non-adherent cell fraction may represent a better approach to the DC-tumor fusion hybrid vaccination strategy.
Collapse
|
16
|
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]
|
17
|
Tang CK, Apostolopoulos V. Strategies used for MUC1 immunotherapy: preclinical studies. Expert Rev Vaccines 2014; 7:951-62. [DOI: 10.1586/14760584.7.7.951] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
18
|
Tang CK, Katsara M, Apostolopoulos V. Strategies used for MUC1 immunotherapy: human clinical studies. Expert Rev Vaccines 2014; 7:963-75. [DOI: 10.1586/14760584.7.7.963] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
19
|
Tanyi JL, Chu CS. Dendritic cell-based tumor vaccinations in epithelial ovarian cancer: a systematic review. Immunotherapy 2013; 4:995-1009. [PMID: 23148752 DOI: 10.2217/imt.12.100] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
After decades of extensive research, epithelial ovarian cancer still remains a lethal disease. Multiple new studies have reported that the immune system plays a critical role in the growth and spread of ovarian carcinoma. This review summarizes the development of dendritic cell (DC) vaccinations specific for ovarian cancer. So far, DC-based vaccines have induced effective antitumor responses in animal models, but only limited results from human clinical trials are available. Although DC-based immunotherapy has proven to be clinically safe and efficient at inducing tumor-specific immune responses, its clear role in the therapy of ovarian cancer still needs to be clarified. The relatively disappointing low-response rates in early clinical trials point to the need for the development of more effective and personalized DC-based anticancer vaccines. This article reviews the basic mechanisms, limitations and future directions of DC-based anti-ovarian cancer vaccine development.
Collapse
Affiliation(s)
- Janos L Tanyi
- Division of Gynecologic Oncology, Department of Obstetrics & Gynecology, University of Pennsylvania Health System, Philadelphia, PA, USA
| | | |
Collapse
|
20
|
Bobryshev YV, Karagodin VP, Orekhov AN. Dendritic cells and their role in immune reactions of atherosclerosis. ACTA ACUST UNITED AC 2013. [DOI: 10.1134/s1990519x1302003x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
21
|
Niccolai E, Prisco D, D'Elios MM, Amedei A. What is recent in pancreatic cancer immunotherapy? BIOMED RESEARCH INTERNATIONAL 2012; 2013:492372. [PMID: 23509731 PMCID: PMC3591222 DOI: 10.1155/2013/492372] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/21/2012] [Accepted: 07/06/2012] [Indexed: 12/13/2022]
Abstract
Pancreatic cancer (PC) represents an unresolved therapeutic challenge, due to the poor prognosis and the reduced response to currently available treatments. Pancreatic cancer is the most lethal type of digestive cancers, with a median survival of 4-6 months. Only a small proportion of PC patients is curative by surgical resection, whilst standard chemotherapy for patients in advanced disease generates only modest effects with considerable toxic damages. Thus, new therapeutic approaches, specially specific treatments such as immunotherapy, are needed. In this paper we analyze recent preclinical and clinical efforts towards immunotherapy of pancreatic cancer, including passive and active immunotherapy approaches, designed to target pancreatic-cancer-associated antigens and to elicit an antitumor response in vivo.
Collapse
Affiliation(s)
- Elena Niccolai
- Department of Internal Medicine, University of Florence and Patologia Medica Unit Department of Biomedicine, Azienda Ospedaliero-Universitaria Careggi, 50134 Florence, Italy
| | - Domenico Prisco
- Department of Medical and Surgical Critical Care, University of Florence and Patologia Medica Unit Department of Biomedicine, Azienda Ospedaliero Universitaria Careggi, 50134 Florence, Italy
| | - Mario Milco D'Elios
- Department of Internal Medicine, University of Florence and Patologia Medica Unit Department of Biomedicine, Azienda Ospedaliero-Universitaria Careggi, 50134 Florence, Italy
- Center of Oncologic Minimally Invasive Surgery, University of Florence, Largo Brambilla 3, 50134 Florence, Italy
| | - Amedeo Amedei
- Department of Internal Medicine, University of Florence and Patologia Medica Unit Department of Biomedicine, Azienda Ospedaliero-Universitaria Careggi, 50134 Florence, Italy
- Center of Oncologic Minimally Invasive Surgery, University of Florence, Largo Brambilla 3, 50134 Florence, Italy
- Division of Immunology, Department of Internal Medicine, University of Florence, Viale Pieraccini, 6, 50134 Florence, Italy
| |
Collapse
|
22
|
Abstract
A promising cancer vaccine involves the fusion of dendritic cells (DCs) with tumor cells such that a broad array of tumor antigens are presented in the context of DC-mediated costimulation and stimulatory cytokines. In diverse animal models, vaccination with DC/tumor fusions results in protection from an otherwise lethal challenge of tumor cells and eradication of established disease. In phase I clinical studies, vaccination with DC/tumor fusions was well tolerated, and induced immunologic responses in the majority of patients and clinical responses in a subset. Vaccine efficacy may be blunted by the immunosuppressive milieu characteristic of patients with malignancy, including the increased presence of regulatory T cells, and inhibitory pathways such as the PD-1/PDL-1 pathway. A current focus of research interest lies in enhancing response to cancer vaccines, by combining vaccination with tumor cytoreduction, regulatory T-cell depletion, and blockade of critical inhibitory pathways.
Collapse
Affiliation(s)
- David Avigan
- Division of Hematology Oncology, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA.
| | | | | |
Collapse
|
23
|
Murshid A, Gong J, Stevenson MA, Calderwood SK. Heat shock proteins and cancer vaccines: developments in the past decade and chaperoning in the decade to come. Expert Rev Vaccines 2012; 10:1553-68. [PMID: 22043955 DOI: 10.1586/erv.11.124] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Molecular chaperone-peptide complexes extracted from tumors (heat shock protein [HSP] vaccines) have been intensively studied in the preceding two decades, proving to be safe and effective in treating a number of malignant diseases. They offer personalized therapy and target a cross-section of antigens expressed in patients' tumors. Future advances may rely on understanding the molecular underpinnings of this approach to immunotherapy. One property common to HSP vaccines is the ability to stimulate antigen uptake by scavenger receptors on the antigen-presenting cell surface and trigger T-lymphocyte activation. HSPs can also induce signaling through Toll-Like receptors in a range of immune cells and this may mediate the effectiveness of vaccines.
Collapse
Affiliation(s)
- Ayesha Murshid
- Molecular and Cellular Radiation Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, 99 Brookline Avenue, Boston, MA 02215, USA
| | | | | | | |
Collapse
|
24
|
Current immunotherapeutic approaches in pancreatic cancer. Clin Dev Immunol 2011; 2011:267539. [PMID: 21922022 PMCID: PMC3172984 DOI: 10.1155/2011/267539] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2011] [Accepted: 06/26/2011] [Indexed: 12/13/2022]
Abstract
Pancreatic cancer is a highly aggressive and notoriously difficult to treat. As the vast majority of patients are diagnosed at advanced stage of the disease, only a small population is curative by surgical resection. Although gemcitabine-based chemotherapy is typically offered as standard of care, most patients do not survive longer than 6 months. Thus, new therapeutic approaches are needed. Pancreatic cancer cells that develop gemcitabine resistance would still be suitable targets for immunotherapy. Therefore, one promising treatment approach may be immunotherapy that is designed to target pancreatic-cancer-associated antigens. In this paper, we detail recent work in immunotherapy and the advances in concept of combination therapy of immunotherapy and chemotherapy. We offer our perspective on how to increase the clinical efficacy of immunotherapies for pancreatic cancer.
Collapse
|
25
|
Gottesman A, Milazzo J, Lazebnik Y. V-fusion: a convenient, nontoxic method for cell fusion. Biotechniques 2011; 49:747-50. [PMID: 20964635 DOI: 10.2144/000113515] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Cell-to-cell fusion (cell fusion) is a fundamental biological process that also has been used as a versatile experimental tool to dissect a variety of cellular mechanisms, including the consequences of cell fusion itself, and to produce cells with desired properties, such as hybridomas and reprogrammed progenitors. However, current methods of cell fusion are not satisfactory because of their toxicity, inefficiency, or lack of flexibility. We describe a simple, versatile, scalable, and nontoxic approach that we call V-fusion, as it is based on the ability of the vesicular stomatitis virus G protein (VSV-G), a viral fusogen of broad tropism, to become rapidly and reversibly activated. We suggest that this approach will benefit a broad array of studies that investigate consequences of cell fusion or use cell fusion as an experimental tool.
Collapse
Affiliation(s)
- Amy Gottesman
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11768, USA
| | | | | |
Collapse
|
26
|
Immunologic monitoring of cellular responses by dendritic/tumor cell fusion vaccines. J Biomed Biotechnol 2011; 2011:910836. [PMID: 21541197 PMCID: PMC3085507 DOI: 10.1155/2011/910836] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2010] [Revised: 11/11/2010] [Accepted: 02/27/2011] [Indexed: 12/22/2022] Open
Abstract
Although dendritic cell (DC)- based cancer vaccines induce effective antitumor activities in murine models, only limited therapeutic results have been obtained in clinical trials. As cancer vaccines induce antitumor activities by eliciting or modifying immune responses in patients with cancer, the Response Evaluation Criteria in Solid Tumors (RECIST) and WHO criteria, designed to detect early effects of cytotoxic chemotherapy in solid tumors, may not provide a complete assessment of cancer vaccines. The problem may, in part, be resolved by carrying out immunologic cellular monitoring, which is one prerequisite for rational development of cancer vaccines. In this review, we will discuss immunologic monitoring of cellular responses for the evaluation of cancer vaccines including fusions of DC and whole tumor cell.
Collapse
|
27
|
Weng D, Song B, Durfee J, Sugiyama V, Wu Z, Koido S, Calderwood SK, Gong J. Induction of cytotoxic T lymphocytes against ovarian cancer-initiating cells. Int J Cancer 2011; 129:1990-2001. [PMID: 21154809 DOI: 10.1002/ijc.25851] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2010] [Accepted: 11/30/2010] [Indexed: 01/02/2023]
Abstract
The majority of patients with stage III/IV ovarian carcinoma that respond initially to standard therapies ultimately undergo relapse due to the survival of small populations of cells with tumor-initiating potential. These ovarian cancer (OVCA)-initiating cells (OCIC) are sometimes called cancer stem cells (CSC) because they express stem cell markers, and can survive conventional therapies such as chemotherapy, which usually target rapidly replicating tumor cells, and give rise to recurrent tumors that are more chemo-resistant and more aggressive. Thus, it would be desirable to develop a therapy that could selectively target OCIC and be used to complement the conventional therapies. In this study, we isolated a subset of OVCA cells with a CD44(+) phenotype in samples from patients with OVCA that possess CSC properties including the formation of spheroids in culture, self-renewal and the ability to be engrafted in immune-compromised mice. We next explored the use of immunotherapy using fusions of dendritic cells and OCIC to specifically target the OCIC subpopulations. Fusion cells (FCs) prepared in this way activated T cells to express elevated levels of IFN-γ with enhanced killing of CD44(+) OVCA cells. We envision a combined approach where conventional therapies such as chemotherapy kill the bulk of tumor cells, whereas OCIC-reactive cytotoxic T lymphocytes target the resistant OCIC fraction. A combined therapy such as this may represent a promising approach for the treatment of OVCA.
Collapse
Affiliation(s)
- Desheng Weng
- Department of Medicine, Boston University School of Medicine, Boston, MA 02118,USA
| | | | | | | | | | | | | | | |
Collapse
|
28
|
Koido S, Hara E, Homma S, Ohkusa T, Gong J, Tajiri H. Cancer immunotherapy by fusions of dendritic cells and tumor cells. Immunotherapy 2011; 1:49-62. [PMID: 20635973 DOI: 10.2217/1750743x.1.1.49] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Dendritic cells (DCs) are potent professional antigen-presenting cells and play a critical role in the induction of primary immune responses. DC-based vaccination represents a potentially powerful strategy for cancer immunotherapy. Thus, the use of cancer vaccines to eliminate residual tumor cells is a promising area of investigation. The immunotherapy of tumor antigen-loaded DCs has now been demonstrated in cancer patients and some clinical responses without any significant toxicity. Fusions of DCs and tumor cells represent an alternative but promising approach to overcome the inability of tumor antigens to induce a sustainable T-cell response. This review deals with recent progress in the immunotherapy of cancer with fusions of DCs and tumor cells.
Collapse
Affiliation(s)
- Shigeo Koido
- Department of Internal Medicine, The Jikei University, Tokyo, Japan.
| | | | | | | | | | | |
Collapse
|
29
|
Regulation of tumor immunity by tumor/dendritic cell fusions. Clin Dev Immunol 2010; 2010:516768. [PMID: 21048993 PMCID: PMC2964897 DOI: 10.1155/2010/516768] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2010] [Accepted: 09/22/2010] [Indexed: 02/07/2023]
Abstract
The goal of cancer vaccines is to induce antitumor immunity that ultimately will reduce tumor burden in tumor environment. Several strategies involving dendritic cells- (DCs)- based vaccine incorporating different tumor-associated antigens to induce antitumor immune responses against tumors have been tested in clinical trials worldwide. Although DCs-based vaccine such as fusions of whole tumor cells and DCs has been proven to be clinically safe and is efficient to enhance antitumor immune responses for inducing effective immune response and for breaking T-cell tolerance to tumor-associated antigens (TAAs), only a limited success has occurred in clinical trials. This paper reviews tumor immune escape and current strategies employed in the field of tumor/DC fusions vaccine aimed at enhancing activation of TAAs-specific cytotoxic T cells in tumor microenvironment.
Collapse
|
30
|
Murshid A, Gong J, Calderwood SK. Heat shock protein 90 mediates efficient antigen cross presentation through the scavenger receptor expressed by endothelial cells-I. THE JOURNAL OF IMMUNOLOGY 2010; 185:2903-17. [PMID: 20686127 DOI: 10.4049/jimmunol.0903635] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Ag cross presentation is an important mechanism for CD8(+) T cell activation by APCs. We have investigated mechanisms involved in heat shock protein 90 (Hsp90) chaperone-mediated cross presentation of OVA-derived Ags. Hsp90-OVA peptide complexes bound to scavenger receptor expressed by endothelial cells (SREC-I) on the surface of APCs. SREC-I then mediated internalization of Hsp90-OVA polypeptide complexes through a Cdc42-regulated, dynamin-independent endocytic pathway known as the GPI-anchored protein-enriched early endosomal compartment to recycling endosomes. Peptides that did not require processing could then be loaded directly onto MHC class I in endosomes, whereas longer peptides underwent endosomal and cytosomal processing by aminopeptidases and proteases. Cross presentation of Hsp90-chaperoned peptides through this pathway to CD8(+) T cells was highly efficient compared with processing of free polypeptides. In addition, Hsp90 also activated c-Src kinase associated with SREC-I, an activity that we determined to be required for effective cross presentation. Extracellular Hsp90 can thus convey antigenic peptides through an efficient endocytosis pathway in APCs and facilitate cross presentation in a highly regulated manner.
Collapse
Affiliation(s)
- Ayesha Murshid
- Division of Molecular and Cellular Biology, Department of Radiation Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | | | | |
Collapse
|
31
|
Antigen-specific polyclonal cytotoxic T lymphocytes induced by fusions of dendritic cells and tumor cells. J Biomed Biotechnol 2010; 2010:752381. [PMID: 20379390 PMCID: PMC2850552 DOI: 10.1155/2010/752381] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2009] [Revised: 01/21/2010] [Accepted: 02/01/2010] [Indexed: 01/26/2023] Open
Abstract
The aim of cancer vaccines is induction of tumor-specific cytotoxic T lymphocytes (CTLs) that can reduce the tumor mass. Dendritic cells (DCs) are potent antigen-presenting cells and play a central role in the initiation and regulation of primary immune responses. Thus, DCs-based vaccination represents a potentially powerful strategy for induction of antigen-specific CTLs. Fusions of DCs and whole tumor cells represent an alternative approach to deliver, process, and subsequently present a broad spectrum of antigens, including those known and unidentified, in the context of costimulatory molecules. Once DCs/tumor fusions have been infused back into patient, they migrate to secondary lymphoid organs, where the generation of antigen-specific polyclonal CTL responses occurs. We will discuss perspectives for future development of DCs/tumor fusions for CTL induction.
Collapse
|
32
|
Dendritic/pancreatic carcinoma fusions for clinical use: Comparative functional analysis of healthy- versus patient-derived fusions. Clin Immunol 2010; 135:384-400. [PMID: 20226739 DOI: 10.1016/j.clim.2010.02.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2009] [Revised: 02/06/2010] [Accepted: 02/09/2010] [Indexed: 12/13/2022]
Abstract
Fetal calf serum (FCS)-independent pancreatic cancer cells were established in plasma protein fraction (PPF)-supplemented medium that is an agent of good manufacturing practice (GMP) grade. Dendritic cells (DCs) were activated with the Toll-like receptor agonist, penicillin-inactivated Streptococcus pyogenes (OK-432) that is also a GMP grade agent. Therefore, sufficient amounts of FCS-independent fusions were successfully generated with decreased potential hazards of FCS. The FCS-independent fusions expressed tumor-associated antigens, HLA-DR, costimulatory molecules, IL-12, and IL-10. Stimulation of T cells with fusions from healthy donors resulted in proliferation of T cells with high expression levels of perforin/granzyme B and IFN-gamma and efficient induction of antigen-specific cytotoxic T lymphocytes (CTLs). Selection and expansion of T-cell clones were confirmed by TCR Vbeta analysis. However, fusions from patients with metastatic pancreatic cancer induced increased expression levels of TGF-beta1 in CD4+ CD25high T cells and low levels of CTLs with decreased IFN-gamma production.
Collapse
|
33
|
Alvarez E, Moga E, Barquinero J, Sierra J, Briones J. Dendritic and tumor cell fusions transduced with adenovirus encoding CD40L eradicate B-cell lymphoma and induce a Th17-type response. Gene Ther 2009; 17:469-77. [PMID: 20010627 DOI: 10.1038/gt.2009.150] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Fusion of dendritic cells and tumor cells (FCs) constitutes a promising tool for generating an antitumor response because of their capacity to present tumor antigens and provide appropriate costimulatory signals. CD40-CD40L interaction has an important role in the maturation and survival of dendritic cells and provides critical help for T-cell priming. In this study, we sought to improve the effectiveness of FC vaccines in a murine model of B-cell lymphoma by engineering FCs to express CD40L by means of an adenovirus encoding CD40L (Adv-CD40L). Before transduction with Adv-CD40L, no CD40L expression was detected in FCs, DCs or tumor cells. The surface expression of CD40L in FC transduced with Adv-CD40L (FC-CD40L) ranged between 50 and 60%. FC-CD40L showed an enhanced expression of CD80, CD86, CD54 and MHC class II molecules and elicited a strong in vitro immune response in a syngeneic mixed lymphocyte reaction. Furthermore, FC-CD40L showed enhanced migration to secondary lymphoid organs. Splenocytes from mice treated with FC-CD40L had a dramatic increase in the production of IL-17, IL-6 and IFN-gamma, compared with controls. Treatment with the FC-CD40L vaccine induced regression of established tumors and increased survival. Our data demonstrate that FC transduced with Adv-CD40L enhances the antitumor effect of FC vaccines in a murine lymphoma model and this is associated with an increased Th17-type immune response.
Collapse
Affiliation(s)
- E Alvarez
- Department of Hematology, Hospital Santa Creu i Sant Pau, Barcelona, Spain
| | | | | | | | | |
Collapse
|
34
|
Ni J, Nolte B, Arnold A, Fournier P, Schirrmacher V. Targeting anti-tumor DNA vaccines to dendritic cells via a short CD11c promoter sequence. Vaccine 2009; 27:5480-7. [PMID: 19616491 DOI: 10.1016/j.vaccine.2009.07.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2009] [Revised: 04/03/2009] [Accepted: 07/01/2009] [Indexed: 01/19/2023]
|
35
|
Gong J, Zhu B, Murshid A, Adachi H, Song B, Lee A, Liu C, Calderwood SK. T cell activation by heat shock protein 70 vaccine requires TLR signaling and scavenger receptor expressed by endothelial cells-1. THE JOURNAL OF IMMUNOLOGY 2009; 183:3092-8. [PMID: 19641135 DOI: 10.4049/jimmunol.0901235] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Heat shock protein (HSP) 70 isolated from tumor-dendritic cell (DC) fusions (HSP70.PC-F) induces potent antitumor immunity and prevents growth of such tumors. In the present study, we have examined mechanisms underlying such antitumor activity of the HSP70.PC-F vaccine. The degree of antitumor immunity induced by HSP70.PC-F depended on intact TLR signaling in immunized animals, and mice in which the tlr2 and tlr4 genes were both inactivated did not respond to the vaccine. The reduced responses to HSP70.PC-F vaccine in such tlr knockout mice were restored by immunization of animals with HSP70.PC-F-pulsed wild-type DC, indicating a key role for this cell type in HSP70.PC-F-mediated immunity. Our studies also indicate a role for the scavenger receptor expressed by endothelial cells-1 (SREC-1) in antitumor immunity induced by HSP70.PC-F. These two receptor types appeared functionally interdependent, as indicated by the finding that tlr2 and tlr4 knockout decreases HSP70 binding in double-knockout DC and reduces SREC-1 expression. In addition, TLR-dependent, tumor cell killing was suppressed by SREC-1 knockdown in DC, suggesting a significant role for this receptor in HSP70.PC-F-mediated tumor immunity.
Collapse
Affiliation(s)
- Jianlin Gong
- Center for the Molecular Stress Response, Department of Medicine, Boston University Medical Center, Boston, MA 02118, USA.
| | | | | | | | | | | | | | | |
Collapse
|