1
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Waeckerle-Men Y, Kotkowska ZK, Bono G, Duda A, Kolm I, Varypataki EM, Amstutz B, Meuli M, Høgset A, Kündig TM, Halin C, Sander P, Johansen P. Photochemically-Mediated Inflammation and Cross-Presentation of Mycobacterium bovis BCG Proteins Stimulates Strong CD4 and CD8 T-Cell Responses in Mice. Front Immunol 2022; 13:815609. [PMID: 35173729 PMCID: PMC8841863 DOI: 10.3389/fimmu.2022.815609] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 01/10/2022] [Indexed: 11/13/2022] Open
Abstract
Conventional vaccines are very efficient in the prevention of bacterial infections caused by extracellular pathogens due to effective stimulation of pathogen-specific antibodies. In contrast, considering that intracellular surveillance by antibodies is not possible, they are typically less effective in preventing or treating infections caused by intracellular pathogens such as Mycobacterium tuberculosis. The objective of the current study was to use so-called photochemical internalization (PCI) to deliver a live bacterial vaccine to the cytosol of antigen-presenting cells (APCs) for the purpose of stimulating major histocompatibility complex (MHC) I-restricted CD8 T-cell responses. For this purpose, Mycobacterium bovis BCG (BCG) was combined with the photosensitiser tetraphenyl chlorine disulfonate (TPCS2a) and injected intradermally into mice. TPCS2a was then activated by illumination of the injection site with light of defined energy. Antigen-specific CD4 and CD8 T-cell responses were monitored in blood, spleen, and lymph nodes at different time points thereafter using flow cytometry, ELISA and ELISPOT. Finally, APCs were infected and PCI-treated in vitro for analysis of their activation of T cells in vitro or in vivo after autologous vaccination of mice. Combination of BCG with PCI induced stronger BCG-specific CD4 and CD8 T-cell responses than treatment with BCG only or with BCG and TPCS2a without light. The overall T-cell responses were multifunctional as characterized by the production of IFN-γ, TNF-α, IL-2 and IL-17. Importantly, PCI induced cross-presentation of BCG proteins for stimulation of antigen-specific CD8 T-cells that were particularly producing IFN-γ and TNF-α. PCI further facilitated antigen presentation by causing up-regulation of MHC and co-stimulatory proteins on the surface of APCs as well as their production of TNF-α and IL-1β in vivo. Furthermore, PCI-based vaccination also caused local inflammation at the site of vaccination, showing strong infiltration of immune cells, which could contribute to the stimulation of antigen-specific immune responses. This study is the first to demonstrate that a live microbial vaccine can be combined with a photochemical compound and light for cross presentation of antigens to CD8 T cells. Moreover, the results revealed that PCI treatment strongly improved the immunogenicity of M. bovis BCG.
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Affiliation(s)
- Ying Waeckerle-Men
- Department of Dermatology, University of Zurich and University Hospital Zurich, Zurich, Switzerland
| | - Zuzanna K. Kotkowska
- Department of Dermatology, University of Zurich and University Hospital Zurich, Zurich, Switzerland
| | - Géraldine Bono
- Department of Dermatology, University of Zurich and University Hospital Zurich, Zurich, Switzerland
| | - Agathe Duda
- Department of Dermatology, University of Zurich and University Hospital Zurich, Zurich, Switzerland
| | - Isabel Kolm
- Department of Dermatology, University of Zurich and University Hospital Zurich, Zurich, Switzerland
| | - Eleni M. Varypataki
- Department of Dermatology, University of Zurich and University Hospital Zurich, Zurich, Switzerland
| | - Beat Amstutz
- Institute of Medical Microbiology, University of Zurich, Zurich, Switzerland
| | - Michael Meuli
- Institute of Medical Microbiology, University of Zurich, Zurich, Switzerland
| | | | - Thomas M. Kündig
- Department of Dermatology, University of Zurich and University Hospital Zurich, Zurich, Switzerland
| | - Cornelia Halin
- Institute of Pharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
| | - Peter Sander
- Institute of Medical Microbiology, University of Zurich, Zurich, Switzerland
- National Center for Mycobacteria, University of Zurich, Zurich, Switzerland
| | - Pål Johansen
- Department of Dermatology, University of Zurich and University Hospital Zurich, Zurich, Switzerland
- *Correspondence: Pål Johansen,
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2
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Wang Y, Wang J, Zhu D, Wang Y, Qing G, Zhang Y, Liu X, Liang XJ. Effect of physicochemical properties on in vivo fate of nanoparticle-based cancer immunotherapies. Acta Pharm Sin B 2021; 11:886-902. [PMID: 33996405 PMCID: PMC8105773 DOI: 10.1016/j.apsb.2021.03.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 12/25/2020] [Accepted: 01/15/2021] [Indexed: 12/14/2022] Open
Abstract
Current advances of immunotherapy have greatly changed the way of cancer treatment. At the same time, a great number of nanoparticle-based cancer immunotherapies (NBCIs) have also been explored to elicit potent immune responses against tumors. However, few NBCIs are nearly in the clinical trial which is mainly ascribed to a lack understanding of in vivo fate of nanoparticles (NPs) for cancer immunotherapy. NPs for cancer immunotherapy mainly target the immune organs or immune cells to enable efficient antitumor immune responses. The physicochemical properties of NPs including size, shape, elasticity and surface properties directly affect their interaction with immune systems as well as their in vivo fate and therapeutic effect. Hence, systematic analysis of the physicochemical properties and their effect on in vivo fate is urgently needed. In this review, we first recapitulate the fundamentals for the in vivo fate of NBCIs including physio-anatomical features of lymphatic system and strategies to modulate immune responses. Moreover, we highlight the effect of physicochemical properties on their in vivo fate including lymph nodes (LNs) drainage, cellular uptake and intracellular transfer. Challenges and opportunities for rational design of NPs for cancer immunotherapy are also discussed in detail.
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3
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Schineis P, Kotkowska ZK, Vogel-Kindgen S, Friess MC, Theisen M, Schwyter D, Hausammann L, Subedi S, Varypataki EM, Waeckerle-Men Y, Kolm I, Kündig TM, Høgset A, Gander B, Halin C, Johansen P. Photochemical internalization (PCI)-mediated activation of CD8 T cells involves antigen uptake and CCR7-mediated transport by migratory dendritic cells to draining lymph nodes. J Control Release 2021; 332:96-108. [PMID: 33609623 DOI: 10.1016/j.jconrel.2021.02.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 01/22/2021] [Accepted: 02/10/2021] [Indexed: 12/11/2022]
Abstract
Antigen cross-presentation to cytotoxic CD8+ T cells is crucial for the induction of anti-tumor and anti-viral immune responses. Recently, co-encapsulation of photosensitizers and antigens into microspheres and subsequent photochemical internalization (PCI) of antigens in antigen presenting cells has emerged as a promising new strategy for inducing antigen-specific CD8+ T cell responses in vitro and in vivo. However, the exact cellular mechanisms have hardly been investigated in vivo, i.e., which cell types take up antigen-loaded microspheres at the site of injection, or in which secondary lymphoid organ does T cell priming occur? We used spray-dried poly(lactic-co-glycolic acid) (PLGA) microspheres loaded with ovalbumin and the photosensitizer tetraphenyl chlorine disulfonate (TPCS2a) to investigate these processes in vivo. Intravital microscopy and flow cytometric analysis of the murine ear skin revealed that dendritic cells (DCs) take up PLGA microspheres in peripheral tissues. Illumination then caused photoactivation of TPCS2a and induced local tissue inflammation that enhanced CCR7-dependent migration of microsphere-containing DCs to tissue-draining lymph nodes (LNs), i.e., the site of CD8+ T cell priming. The results contribute to a better understanding of the functional mechanism of PCI-mediated vaccination and highlight the importance of an active transport of vaccine microspheres by antigen presenting cells to draining LNs.
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Affiliation(s)
- Philipp Schineis
- Institute of Pharmaceutical Sciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Zuzanna K Kotkowska
- Institute of Pharmaceutical Sciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland; Department of Dermatology, University of Zurich, Gloriastrasse 31, 8091 Zurich, Switzerland
| | - Sarah Vogel-Kindgen
- Institute of Pharmaceutical Sciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Mona C Friess
- Institute of Pharmaceutical Sciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Martine Theisen
- Institute of Pharmaceutical Sciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - David Schwyter
- Institute of Pharmaceutical Sciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Lucy Hausammann
- Institute of Pharmaceutical Sciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Saurav Subedi
- Institute of Pharmaceutical Sciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Eleni M Varypataki
- Department of Dermatology, University of Zurich, Gloriastrasse 31, 8091 Zurich, Switzerland
| | - Ying Waeckerle-Men
- Department of Dermatology, University of Zurich, Gloriastrasse 31, 8091 Zurich, Switzerland
| | - Isabel Kolm
- Department of Dermatology, University Hospital Zurich, Gloriastrasse 31, 8091 Zurich, Switzerland
| | - Thomas M Kündig
- Department of Dermatology, University of Zurich, Gloriastrasse 31, 8091 Zurich, Switzerland; Department of Dermatology, University Hospital Zurich, Gloriastrasse 31, 8091 Zurich, Switzerland
| | - Anders Høgset
- PCI Biotech AS, Ullernchauséen 64, 0379 Oslo, Norway
| | - Bruno Gander
- Institute of Pharmaceutical Sciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Cornelia Halin
- Institute of Pharmaceutical Sciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland.
| | - Pål Johansen
- Department of Dermatology, University of Zurich, Gloriastrasse 31, 8091 Zurich, Switzerland; Department of Dermatology, University Hospital Zurich, Gloriastrasse 31, 8091 Zurich, Switzerland.
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4
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Otterhaug T, Janetzki S, Welters MJP, Håkerud M, Nedberg AG, Edwards VT, Boekestijn S, Loof NM, Selbo PK, Olivecrona H, van der Burg SH, Høgset A. Photochemical Internalization Enhanced Vaccination Is Safe, and Gives Promising Cellular Immune Responses to an HPV Peptide-Based Vaccine in a Phase I Clinical Study in Healthy Volunteers. Front Immunol 2021; 11:576756. [PMID: 33488576 PMCID: PMC7819858 DOI: 10.3389/fimmu.2020.576756] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 11/20/2020] [Indexed: 12/17/2022] Open
Abstract
Background and Aims Photochemical internalization (PCI) is a technology for inducing release of endocytosed antigens into the cell cytosol via a light-induced process. Preclinical experiments have shown that PCI improves MHC class I antigen presentation, resulting in strongly enhanced CD8+ T-cell responses to polypeptide antigens. In PCI vaccination a mixture of the photosensitizing compound fimaporfin, vaccine antigens, and an adjuvant is administered intradermally followed by illumination of the vaccination site. This work describes an open label, phase I study in healthy volunteers, to assess the safety, tolerability, and immune response to PCI vaccination in combination with the adjuvant poly-ICLC (Hiltonol) (ClinicalTrials.gov Identifier: NCT02947854). Methods The primary objective of the study was to assess the safety and local tolerance of PCI mediated vaccination, and to identify a safe fimaporfin dose for later clinical studies. A secondary objective was to analyze the immunological responses to the vaccination. Each subject received 3 doses of HPV16 E7 peptide antigens and two doses of Keyhole Limpet Hemocyanin (KLH) protein. A control group received Hiltonol and vaccine antigens only, whereas the PCI groups in addition received fimaporfin + light. Local and systemic adverse effects were assessed by standard criteria, and cellular and humoral immune responses were analyzed by ELISpot, flow cytometry, and ELISA assays. Results 96 healthy volunteers were vaccinated with fimaporfin doses of 0.75–50 µg. Doses below 17.5 µg were safe and tolerable, higher doses exhibited local tolerability issues in some study subjects, mainly erythema, and pain during illumination. There were few, and only mild and expected systemic adverse events. The employment of PCI increased the number of subjects exhibiting a T-cell response to the HPV peptide vaccine about 10-fold over what was achieved with the antigen/Hiltonol combination without PCI. Moreover, the use of PCI seemed to result in a more consistent and multifunctional CD8+ T-cell response. An enhancement of the humoral immune response to KLH vaccination was also observed. Conclusions Using PCI in combination with Hiltonol for intradermal vaccination is safe at fimaporfin doses below 17.5 µg, and gives encouraging immune responses to peptide and protein based vaccination.
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Affiliation(s)
| | | | - Marij J P Welters
- Department of Medical Oncology, Oncode Institute, Leiden University Medical Center, Leiden, Netherlands
| | - Monika Håkerud
- PCI Biotech AS, Oslo, Norway.,Department of Radiation Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Anne Grete Nedberg
- PCI Biotech AS, Oslo, Norway.,Department of Radiation Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Victoria Tudor Edwards
- PCI Biotech AS, Oslo, Norway.,Department of Radiation Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Sanne Boekestijn
- Department of Medical Oncology, Oncode Institute, Leiden University Medical Center, Leiden, Netherlands
| | - Nikki M Loof
- Department of Medical Oncology, Oncode Institute, Leiden University Medical Center, Leiden, Netherlands
| | - Pål Kristian Selbo
- Department of Radiation Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | | | - Sjoerd H van der Burg
- Department of Medical Oncology, Oncode Institute, Leiden University Medical Center, Leiden, Netherlands
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5
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Photochemical Internalization: Light Paves Way for New Cancer Chemotherapies and Vaccines. Cancers (Basel) 2020; 12:cancers12010165. [PMID: 31936595 PMCID: PMC7016662 DOI: 10.3390/cancers12010165] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/06/2020] [Accepted: 01/07/2020] [Indexed: 12/19/2022] Open
Abstract
Photochemical internalization (PCI) is a further development of photodynamic therapy (PDT). In this report, we describe PCI as a potential tool for cellular internalization of chemotherapeutic agents or antigens and systematically review the ongoing research. Eighteen published papers described the pre-clinical and clinical developments of PCI-mediated delivery of chemotherapeutic agents or antigens. The studies were screened against pre-defined eligibility criteria. Pre-clinical studies suggest that PCI can be effectively used to deliver chemotherapeutic agents to the cytosol of tumor cells and, thereby, improve treatment efficacy. One Phase-I clinical trial has been conducted, and it demonstrated that PCI-mediated bleomycin treatment was safe and identified tolerable doses of the photosensitizer disulfonated tetraphenyl chlorin (TPCS2a). Likewise, PCI was pre-clinically shown to mediate major histocompatibility complex (MHC) class I antigen presentation and generation of tumor-specific cytotoxic CD8+ T-lymphocytes (CTL) and cancer remission. A first clinical Phase I trial with the photosensitizer TPCS2a combined with human papilloma virus antigen (HPV) was recently completed and results are expected in 2020. Hence, photosensitizers and light can be used to mediate cytosolic delivery of endocytosed chemotherapeutics or antigens. While the therapeutic potential in cancer has been clearly demonstrated pre-clinically, further clinical trials are needed to reveal the true translational potential of PCI in humans.
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6
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Kim CG, Kye YC, Yun CH. The Role of Nanovaccine in Cross-Presentation of Antigen-Presenting Cells for the Activation of CD8 + T Cell Responses. Pharmaceutics 2019; 11:E612. [PMID: 31731667 PMCID: PMC6920862 DOI: 10.3390/pharmaceutics11110612] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 11/12/2019] [Accepted: 11/12/2019] [Indexed: 01/30/2023] Open
Abstract
Explosive growth in nanotechnology has merged with vaccine development in the battle against diseases caused by bacterial or viral infections and malignant tumors. Due to physicochemical characteristics including size, viscosity, density and electrostatic properties, nanomaterials have been applied to various vaccination strategies. Nanovaccines, as they are called, have been the subject of many studies, including review papers from a material science point of view, although a mode of action based on a biological and immunological understanding has yet to emerge. In this review, we discuss nanovaccines in terms of CD8+ T cell responses, which are essential for antiviral and anticancer therapies. We focus mainly on the role and mechanism, with particular attention to the functional aspects, of nanovaccines in inducing cross-presentation, an unconventional type of antigen-presentation that activates CD8+ T cells upon administration of exogenous antigens, in dendritic cells followed by activation of antigen-specific CD8+ T cell responses. Two major intracellular mechanisms that nanovaccines harness for cross-presentation are described; one is endosomal swelling and rupture, and the other is membrane fusion. Both processes eventually allow exogenous vaccine antigens to be exported from phagosomes to the cytosol followed by loading on major histocompatibility complex class I, triggering clonal expansion of CD8+ T cells. Advancement of nanotechnology with an enhanced understanding of how nanovaccines work will contribute to the design of more effective and safer nanovaccines.
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Affiliation(s)
- Cheol Gyun Kim
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea; (C.G.K.); (Y.-C.K.)
| | - Yoon-Chul Kye
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea; (C.G.K.); (Y.-C.K.)
| | - Cheol-Heui Yun
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea; (C.G.K.); (Y.-C.K.)
- Center for Food and Bioconvergence, Seoul National University, Seoul 08826, Korea
- Institute of Green Bio Science and Technology, Seoul National University, Pyeongchang, Gangwon-do 25354, Korea
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7
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Varypataki EM, Hasler F, Waeckerle-Men Y, Vogel-Kindgen S, Høgset A, Kündig TM, Gander B, Halin C, Johansen P. Combined Photosensitization and Vaccination Enable CD8 T-Cell Immunity and Tumor Suppression Independent of CD4 T-Cell Help. Front Immunol 2019; 10:1548. [PMID: 31333674 PMCID: PMC6624637 DOI: 10.3389/fimmu.2019.01548] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Accepted: 06/21/2019] [Indexed: 12/21/2022] Open
Abstract
Cytotoxic T lymphocytes (CTLs) are key players in fighting cancer, and their induction is a major focus in the design of therapeutic vaccines. Yet, therapeutic vaccine efficacy is limited, in part due to the suboptimal vaccine processing by antigen-presenting cells (APCs). Such processing typically takes place via the MHC class II pathway for CD4 T-cell activation and MHC class I pathway for activation of CD8 CTLs. We show that a combination of skin photochemical treatment and immunization, so-called photochemical internalization (PCI) facilitated CTL activation due to the photochemical adjuvant effect induced by photosensitizer, oxygen, and light. Mice were immunized intradermally with antigen and photosensitizer, followed by controlled light exposure. PCI-treated mice showed strong activation of CD8 T cells, with improved IFN-γ production and cytotoxicity, as compared to mice immunized without parallel PCI treatment. Surprisingly, the CD8 T-cell effector functions were not impaired in MHC class II- or CD4 T-cell-deficient mice. Moreover, PCI-based vaccination caused tumor regression independent of MHC class II or CD4 T cells presence in melanoma bearing mice. Together, the data demonstrate that PCI can act as a powerful adjuvant in cancer vaccines, even in hosts with impaired T-helper functions.
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Affiliation(s)
| | - Fabio Hasler
- Department of Dermatology, University of Zurich, Zurich, Switzerland
| | | | | | | | - Thomas M Kündig
- Department of Dermatology, University of Zurich, Zurich, Switzerland.,Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - Bruno Gander
- Institute of Pharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
| | - Cornelia Halin
- Institute of Pharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
| | - Pål Johansen
- Department of Dermatology, University of Zurich, Zurich, Switzerland.,Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
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8
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Haug M, Brede G, Håkerud M, Nedberg AG, Gederaas OA, Flo TH, Edwards VT, Selbo PK, Høgset A, Halaas Ø. Photochemical Internalization of Peptide Antigens Provides a Novel Strategy to Realize Therapeutic Cancer Vaccination. Front Immunol 2018; 9:650. [PMID: 29670624 PMCID: PMC5893651 DOI: 10.3389/fimmu.2018.00650] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 03/16/2018] [Indexed: 12/30/2022] Open
Abstract
Effective priming and activation of tumor-specific CD8+ cytotoxic T lymphocytes (CTLs) is crucial for realizing the potential of therapeutic cancer vaccination. This requires cytosolic antigens that feed into the MHC class I presentation pathway, which is not efficiently achieved with most current vaccination technologies. Photochemical internalization (PCI) provides an emerging technology to route endocytosed material to the cytosol of cells, based on light-induced disruption of endosomal membranes using a photosensitizing compound. Here, we investigated the potential of PCI as a novel, minimally invasive, and well-tolerated vaccination technology to induce priming of cancer-specific CTL responses to peptide antigens. We show that PCI effectively promotes delivery of peptide antigens to the cytosol of antigen-presenting cells (APCs) in vitro. This resulted in a 30-fold increase in MHC class I/peptide complex formation and surface presentation, and a subsequent 30- to 100-fold more efficient activation of antigen-specific CTLs compared to using the peptide alone. The effect was found to be highly dependent on the dose of the PCI treatment, where optimal doses promoted maturation of immature dendritic cells, thus also providing an adjuvant effect. The effect of PCI was confirmed in vivo by the successful induction of antigen-specific CTL responses to cancer antigens in C57BL/6 mice following intradermal peptide vaccination using PCI technology. We thus show new and strong evidence that PCI technology holds great potential as a novel strategy for improving the outcome of peptide vaccines aimed at triggering cancer-specific CD8+ CTL responses.
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Affiliation(s)
- Markus Haug
- Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, Trondheim, Norway.,Centre of Molecular Inflammation Research (CEMIR), Norwegian University of Science and Technology, Trondheim, Norway.,Department of Infection, St. Olavs University Hospital, Trondheim, Norway
| | - Gaute Brede
- Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, Trondheim, Norway
| | - Monika Håkerud
- Department of Radiation Biology, Institute for Cancer Research, Oslo University Hospital - The Norwegian Radium Hospital, Oslo, Norway
| | - Anne Grete Nedberg
- Department of Radiation Biology, Institute for Cancer Research, Oslo University Hospital - The Norwegian Radium Hospital, Oslo, Norway
| | - Odrun A Gederaas
- Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, Trondheim, Norway.,Department of Chemistry, Faculty of Natural Science, Norwegian University of Science and Technology, Trondheim, Norway
| | - Trude H Flo
- Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, Trondheim, Norway.,Centre of Molecular Inflammation Research (CEMIR), Norwegian University of Science and Technology, Trondheim, Norway.,Centre for Molecular Medicine Norway, Nordic EMBL Partnership, University of Oslo, Oslo University Hospital, Oslo, Norway
| | - Victoria T Edwards
- Department of Radiation Biology, Institute for Cancer Research, Oslo University Hospital - The Norwegian Radium Hospital, Oslo, Norway.,PCI Biotech AS, Oslo, Norway
| | - Pål K Selbo
- Department of Radiation Biology, Institute for Cancer Research, Oslo University Hospital - The Norwegian Radium Hospital, Oslo, Norway
| | | | - Øyvind Halaas
- Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, Trondheim, Norway
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9
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Ji Y, Zhao J, Chu CC. Enhanced MHC-I antigen presentation from the delivery of ovalbumin by light-facilitated biodegradable poly(ester amide)s nanoparticles. J Mater Chem B 2018; 6:1930-1942. [PMID: 32254359 DOI: 10.1039/c7tb03233a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The generation of CD8 T cells is crucial in adaptive immunity against cancer and many infectious diseases. Vaccines aimed to stimulate CD8 T cell response typically become ineffective because the antigens are subject to sequestration in endocytic compartments, instead of being delivered cytosolically for MHC-I processing and presentation. In this study, a nano-carrier (Arg-Phe-PEA(AP) nanoparticles) for ovalbumin (OVA) was developed from arginine- and phenylalanine-based poly(ester amide)s, which further formed an electrostatic complex with AlPcS2a, a typical photosensitizer for photochemical internalization (PCI) strategies. The nanocarrier significantly enhanced the internalization efficiency by dendritic cells of both OVA and AlPcS2a. The photochemical interruption of endocytic compartments by the AlPcS2a photosensitizer complexed in the nanocarrier enabled the light-facilitated endosomal escape of OVA. MHC-I presentation and CD8 T cell response were elicited by OVA-loaded Arg-Phe-PEA(AP) nanoparticles when light irradiation was applied at 660 nm. The light-facilitated delivery of OVA was dependent on the light dose and the concentration of the photosensitizer, both in vitro and in vivo. The optimized stimulation of MHC-I response demonstrated the potency of this light-facilitated nano-platform for CD8 T cell-inducing vaccination.
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Affiliation(s)
- Ying Ji
- Department of Fiber Science and Apparel Design, Cornell University, Ithaca, New York 14853-4401, USA
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10
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Zhang C, Zhang J, Shi G, Song H, Shi S, Zhang X, Huang P, Wang Z, Wang W, Wang C, Kong D, Li C. A Light Responsive Nanoparticle-Based Delivery System Using Pheophorbide A Graft Polyethylenimine for Dendritic Cell-Based Cancer Immunotherapy. Mol Pharm 2017; 14:1760-1770. [DOI: 10.1021/acs.molpharmaceut.7b00015] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Chuangnian Zhang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, 300192, China
| | - Ju Zhang
- Basic Nursing T&R Section, School of Nursing, Qingdao University, Qingdao, Shandong Province 26000, China
| | - Gaona Shi
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, 300192, China
| | - Huijuan Song
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, 300192, China
| | - Shengbin Shi
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, 300192, China
| | - Xiuyuan Zhang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, 300192, China
| | - Pingsheng Huang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, 300192, China
| | - Zhihong Wang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, 300192, China
| | - Weiwei Wang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, 300192, China
| | - Chun Wang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, 300192, China
- Department
of Biomedical Engineering, University of Minnesota, 7-105 Hasselmo Hall, 312 Church Street South East, Minneapolis, Minnesota 55455, United States
| | - Deling Kong
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, 300192, China
- State
Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive
Materials, Ministry of Education, Nankai University, Tianjin, 300071, China
| | - Chen Li
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, 300192, China
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Sultan AA, Jerjes W, Berg K, Høgset A, Mosse CA, Hamoudi R, Hamdoon Z, Simeon C, Carnell D, Forster M, Hopper C. Disulfonated tetraphenyl chlorin (TPCS2a)-induced photochemical internalisation of bleomycin in patients with solid malignancies: a phase 1, dose-escalation, first-in-man trial. Lancet Oncol 2016; 17:1217-29. [PMID: 27475428 DOI: 10.1016/s1470-2045(16)30224-8] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 05/25/2016] [Accepted: 06/02/2016] [Indexed: 12/12/2022]
Abstract
BACKGROUND Photochemical internalisation, a novel minimally invasive treatment, has shown promising preclinical results in enhancing and site-directing the effect of anticancer drugs by illumination, which initiates localised chemotherapy release. We assessed the safety and tolerability of a newly developed photosensitiser, disulfonated tetraphenyl chlorin (TPCS2a), in mediating photochemical internalisation of bleomycin in patients with advanced and recurrent solid malignancies. METHODS In this phase 1, dose-escalation, first-in-man trial, we recruited patients (aged ≥18 to <85 years) with local recurrent, advanced, or metastatic cutaneous or subcutaneous malignancies who were clinically assessed as eligible for bleomycin chemotherapy from a single centre in the UK. Patients were given TPCS2a on day 0 by slow intravenous injection, followed by a fixed dose of 15 000 IU/m(2) bleomycin by intravenous infusion on day 4. After 3 h, the surface of the target tumour was illuminated with 652 nm laser light (fixed at 60 J/cm(2)). The TPCS2a starting dose was 0·25 mg/kg and was then escalated in successive dose cohorts of three patients (0·5, 1·0, and 1·5 mg/kg). The primary endpoints were safety and tolerability of TPCS2a; other co-primary endpoints were dose-limiting toxicity and maximum tolerated dose. The primary analysis was per protocol. This study is registered with ClinicalTrials.gov, number NCT00993512, and has been completed. FINDINGS Between Oct 3, 2009, and Jan 14, 2014, we recruited 22 patients into the trial. 12 patients completed the 3-month follow-up period. Adverse events related to photochemical internalisation were either local, resulting from the local inflammatory process, or systemic, mostly as a result of the skin-photosensitising effect of TPCS2a. The most common grade 3 or worse adverse events were unexpected higher transient pain response (grade 3) localised to the treatment site recorded in nine patients, and respiratory failure (grade 4) noted in two patients. One dose-limiting toxicity was reported in the 1·0 mg/kg cohort (skin photosensitivity [grade 2]). Dose-limiting toxicities were reported in two of three patients at a TPCS2a dose of 1·5 mg/kg (skin photosensitivity [grade 3] and wound infection [grade 3]); thus, the maximum tolerated dose of TPCS2a was 1·0 mg/kg. Administration of TPCS2a was found to be safe and tolerable by all patients. No deaths related to photochemical internalisation treatment occurred. INTERPRETATION TPCS2a-mediated photochemical internalisation of bleomycin is safe and tolerable. We identified TPCS2a 0·25 mg/kg as the recommended treatment dose for future trials. FUNDING PCI Biotech.
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Affiliation(s)
- Ahmed A Sultan
- Academic Unit of Oral and Maxillofacial Surgery, UCL Eastman Dental Institute, London, UK
| | - Waseem Jerjes
- Division of Surgery and Interventional Science, University College London, London, UK
| | - Kristian Berg
- Department of Radiation Biology, Oslo University Hospital, Oslo, Norway
| | | | - Charles A Mosse
- Division of Surgery and Interventional Science, University College London, London, UK
| | - Rifat Hamoudi
- Division of Surgery and Interventional Science, University College London, London, UK
| | - Zaid Hamdoon
- Academic Unit of Oral and Maxillofacial Surgery, UCL Eastman Dental Institute, London, UK
| | - Celia Simeon
- Cancer Clinical Trials Unit, University College London Hospitals, London, UK
| | - Dawn Carnell
- Head and Neck Unit, University College London Hospitals, London, UK
| | - Martin Forster
- Head and Neck Unit, University College London Hospitals, London, UK; UCL Cancer Institute, London, UK
| | - Colin Hopper
- Academic Unit of Oral and Maxillofacial Surgery, UCL Eastman Dental Institute, London, UK; Head and Neck Unit, University College London Hospitals, London, UK; UCL Cancer Institute, London, UK.
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Hjálmsdóttir Á, Bühler C, Vonwil V, Roveri M, Håkerud M, Wäckerle-Men Y, Gander B, Johansen P. Cytosolic Delivery of Liposomal Vaccines by Means of the Concomitant Photosensitization of Phagosomes. Mol Pharm 2016; 13:320-9. [PMID: 26704885 DOI: 10.1021/acs.molpharmaceut.5b00394] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
One of the greatest pharmaceutical challenges in vaccinology is the delivery of antigens to the cytosol of antigen-presenting cells (APCs) in order to allow for the stimulation of major histocompatibility complex (MHC) class I-restricted CD8(+) T-cell responses, which may act on intracellular infections or cancer. Recently, we described a novel method for cytotoxic T-lymphocyte (CTL) vaccination by combining antigens with a photosensitizer and light for cytosolic antigen delivery. The goal of the current project was to test this immunization method with particle-based formulations. Liposomes were prepared from dipalmitoylphosphatidylcholine and cholesterol, and the antigen ovalbumin (OVA) or the photosensitizer tetraphenyl chlorine disulfonate (TPCS2a) was separately encapsulated. C57BL/6 mice were immunized intradermally with OVA liposomes or a combination of OVA and TPCS2a liposomes, and light was applied the next day for activation of the photosensitizer resulting in cytosolic release of antigen from phagosomes. Immune responses were tested both after a prime only regime and after a prime-boost scheme with a repeat immunization 2 weeks post priming. Antigen-specific CD8(+) T-cell responses and antibody responses were analyzed ex vivo by flow cytometry and ELISA methods. The physicochemical stability of liposomes upon storage and light exposure was analyzed in vitro. Immunization with both TPCS2a- and OVA-containing liposomes greatly improved CD8(+) T-cell responses as compared to immunization without TPCS2a and as measured by proliferation in vivo and cytokine secretion ex vivo. In contrast, OVA-specific antibody responses (IgG1 and IgG2c) were reduced after immunization with TPCS2a-containing liposomes. The liposomal formulation protected the photosensitizer from light-induced inactivation during storage. In conclusion, the photosensitizer TPCS2a was successfully formulated in liposomes and enabled a shift from MHC class II to MHC class I antigen processing and presentation for stimulation of strong CD8(+) T-cell responses. Therefore, photosensitive particulate vaccines may have the potential to add to current vaccine practice a new method of vaccination that, as opposed to current vaccines, can stimulate strong CD8(+) T-cell responses.
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Affiliation(s)
- Ásdís Hjálmsdóttir
- Department of Dermatology, University of Zurich , Gloriastrasse 31, 8091 Zurich, Switzerland
| | - Céline Bühler
- Institute of Pharmaceutical Sciences, ETH Zurich , Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Vera Vonwil
- Institute of Pharmaceutical Sciences, ETH Zurich , Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Maurizio Roveri
- Institute of Pharmaceutical Sciences, ETH Zurich , Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Monika Håkerud
- Department of Dermatology, University of Zurich , Gloriastrasse 31, 8091 Zurich, Switzerland.,Department of Radiation Biology, Institute for Cancer Research, Norwegian Radium Hospital , Montebello, 0310 Oslo, Norway
| | - Ying Wäckerle-Men
- Department of Dermatology, University of Zurich , Gloriastrasse 31, 8091 Zurich, Switzerland
| | - Bruno Gander
- Institute of Pharmaceutical Sciences, ETH Zurich , Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Pål Johansen
- Department of Dermatology, University of Zurich , Gloriastrasse 31, 8091 Zurich, Switzerland
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Irvine DJ, Hanson MC, Rakhra K, Tokatlian T. Synthetic Nanoparticles for Vaccines and Immunotherapy. Chem Rev 2015; 115:11109-46. [PMID: 26154342 DOI: 10.1021/acs.chemrev.5b00109] [Citation(s) in RCA: 518] [Impact Index Per Article: 57.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Darrell J Irvine
- The Ragon Institute of MGH, Massachusetts Institute of Technology and Harvard University , 400 Technology Square, Cambridge, Massachusetts 02139, United States.,Howard Hughes Medical Institute , Chevy Chase, Maryland 20815, United States
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Bruno C, Waeckerle-Men Y, Håkerud M, Kündig TM, Gander B, Johansen P. Photosensitizer and Light Pave the Way for Cytosolic Targeting and Generation of Cytosolic CD8 T Cells Using PLGA Vaccine Particles. THE JOURNAL OF IMMUNOLOGY 2015; 195:166-73. [PMID: 26019274 DOI: 10.4049/jimmunol.1500431] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Accepted: 04/28/2015] [Indexed: 12/21/2022]
Abstract
The generation of CTLs is crucial in the immunological fight against cancer and many infectious diseases. To achieve this, vaccine Ags need to be targeted to the cytosol of dendritic cells, which can activate CD8 T cells via MHC class I (MHCI). Therefore, such targeting has become one of the major objectives of vaccine research. In this study, we aimed to bypass the unwanted and default MHC class II Ag presentation and trigger MHCI presentation by using a photosensitizer that, upon light activation, would facilitate cytosolic targeting of codelivered Ag. Poly(lactide-co-glycolide) microparticles ∼1 μm size were loaded with OVA and the photosensitizer tetraphenyl chlorine disulphonate (TPCS2a) and administered intradermally in mice, which were illuminated 1 d later for activation of the photosensitizer. Immunization in the presence of TPCS2a significantly increased activation of CD8 T cells compared with immunization without TPCS2a and as measured by CD8 T cell proliferation, production of proinflammatory IFN-γ, TNF-α, and IL-2, and prevention of tumor growth. Cytotoxicity was demonstrated by granzyme B production in vitro and by in vivo killing of CFSE-labeled targets. CD4-dependent Ab responses were abrogated in mice immunized with TPCS2a-containing particles, suggesting that photosensitization facilitated a shift from default MHC class II toward MHCI Ag presentation. Hence, vaccine particles with Ag and photosensitizers proved an effective vehicle or adjuvant for stimulation of CTLs, and they may find potential application in therapeutic cancer vaccination and in prophylactic and therapeutic vaccination against intracellular infections.
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Affiliation(s)
- Cristina Bruno
- Institute of Pharmaceutical Sciences, Federal Institute of Technology Zurich, 8093 Zurich, Switzerland; Department of Biotechnology, Chemistry, and Pharmacy, University of Siena, 53100 Siena, Italy; Vaccine Chemistry and Formulation Unit, Novartis Vaccines, 53100 Siena, Italy
| | - Ying Waeckerle-Men
- Department of Dermatology, University of Zurich, 8091 Zurich, Switzerland; and
| | - Monika Håkerud
- Department of Dermatology, University of Zurich, 8091 Zurich, Switzerland; and Department of Radiation Biology, Institute for Cancer Research, Norwegian Radium Hospital, Oslo University Hospital, 0310 Oslo, Norway
| | - Thomas M Kündig
- Department of Dermatology, University of Zurich, 8091 Zurich, Switzerland; and
| | - Bruno Gander
- Institute of Pharmaceutical Sciences, Federal Institute of Technology Zurich, 8093 Zurich, Switzerland
| | - Pål Johansen
- Department of Dermatology, University of Zurich, 8091 Zurich, Switzerland; and
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Photosensitisation facilitates cross-priming of adjuvant-free protein vaccines and stimulation of tumour-suppressing CD8 T cells. J Control Release 2015; 198:10-7. [DOI: 10.1016/j.jconrel.2014.11.032] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Revised: 11/27/2014] [Accepted: 11/29/2014] [Indexed: 01/04/2023]
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Håkerud M, Waeckerle-Men Y, Selbo PK, Kündig TM, Høgset A, Johansen P. Intradermal photosensitisation facilitates stimulation of MHC class-I restricted CD8 T-cell responses of co-administered antigen. J Control Release 2014; 174:143-50. [DOI: 10.1016/j.jconrel.2013.11.017] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Revised: 11/15/2013] [Accepted: 11/17/2013] [Indexed: 12/13/2022]
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