1
|
Preclinical models and technologies to advance nanovaccine development. Adv Drug Deliv Rev 2021; 172:148-182. [PMID: 33711401 DOI: 10.1016/j.addr.2021.03.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 02/26/2021] [Accepted: 03/01/2021] [Indexed: 12/13/2022]
Abstract
The remarkable success of targeted immunotherapies is revolutionizing cancer treatment. However, tumor heterogeneity and low immunogenicity, in addition to several tumor-associated immunosuppression mechanisms are among the major factors that have precluded the success of cancer vaccines as targeted cancer immunotherapies. The exciting outcomes obtained in patients upon the injection of tumor-specific antigens and adjuvants intratumorally, reinvigorated interest in the use of nanotechnology to foster the delivery of vaccines to address cancer unmet needs. Thus, bridging nano-based vaccine platform development and predicted clinical outcomes the selection of the proper preclinical model will be fundamental. Preclinical models have revealed promising outcomes for cancer vaccines. However, only few cases were associated with clinical responses. This review addresses the major challenges related to the translation of cancer nano-based vaccines to the clinic, discussing the requirements for ex vivo and in vivo models of cancer to ensure the translation of preclinical success to patients.
Collapse
|
2
|
Bhat H, Zaun G, Hamdan TA, Lang J, Adomati T, Schmitz R, Friedrich SK, Bergerhausen M, Cham LB, Li F, Ali M, Zhou F, Khairnar V, Duhan V, Brandenburg T, Machlah YM, Schiller M, Berry A, Xu H, Vollmer J, Häussinger D, Thier B, Pandyra AA, Schadendorf D, Paschen A, Schuler M, Lang PA, Lang KS. Arenavirus Induced CCL5 Expression Causes NK Cell-Mediated Melanoma Regression. Front Immunol 2020; 11:1849. [PMID: 32973762 PMCID: PMC7472885 DOI: 10.3389/fimmu.2020.01849] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 07/09/2020] [Indexed: 01/18/2023] Open
Abstract
Immune activation within the tumor microenvironment is one promising approach to induce tumor regression. Certain viruses including oncolytic viruses such as the herpes simplex virus (HSV) and non-oncolytic viruses such as the lymphocytic choriomeningitis virus (LCMV) are potent tools to induce tumor-specific immune activation. However, not all tumor types respond to viro- and/or immunotherapy and mechanisms accounting for such differences remain to be defined. In our current investigation, we used the non-cytopathic LCMV in different human melanoma models and found that melanoma cell lines produced high levels of CCL5 in response to immunotherapy. In vivo, robust CCL5 production in LCMV infected Ma-Mel-86a tumor bearing mice led to recruitment of NK cells and fast tumor regression. Lack of NK cells or CCL5 abolished the anti-tumoral effects of immunotherapy. In conclusion, we identified CCL5 and NK cell-mediated cytotoxicity as new factors influencing melanoma regression during virotherapy.
Collapse
Affiliation(s)
- Hilal Bhat
- Medical Faculty, Institute of Immunology, University Duisburg-Essen, Essen, Germany
| | - Gregor Zaun
- Department of Medical Oncology, West German Cancer Center, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Thamer A Hamdan
- Medical Faculty, Institute of Immunology, University Duisburg-Essen, Essen, Germany
| | - Judith Lang
- Medical Faculty, Institute of Immunology, University Duisburg-Essen, Essen, Germany
| | - Tom Adomati
- Medical Faculty, Institute of Immunology, University Duisburg-Essen, Essen, Germany
| | - Rosa Schmitz
- Medical Faculty, Institute of Immunology, University Duisburg-Essen, Essen, Germany
| | - Sarah-Kim Friedrich
- Medical Faculty, Institute of Immunology, University Duisburg-Essen, Essen, Germany
| | - Michael Bergerhausen
- Medical Faculty, Institute of Immunology, University Duisburg-Essen, Essen, Germany
| | - Lamin B Cham
- Medical Faculty, Institute of Immunology, University Duisburg-Essen, Essen, Germany
| | - Fanghui Li
- Medical Faculty, Institute of Immunology, University Duisburg-Essen, Essen, Germany
| | - Murtaza Ali
- Medical Faculty, Institute of Immunology, University Duisburg-Essen, Essen, Germany
| | - Fan Zhou
- Medical Faculty, Institute of Immunology, University Duisburg-Essen, Essen, Germany
| | - Vishal Khairnar
- Medical Faculty, Institute of Immunology, University Duisburg-Essen, Essen, Germany.,Department of Systems Biology, Beckman Research Institute, City of Hope, Monrovia, CA, United States
| | - Vikas Duhan
- Medical Faculty, Institute of Immunology, University Duisburg-Essen, Essen, Germany
| | - Tim Brandenburg
- Medical Faculty, Institute of Immunology, University Duisburg-Essen, Essen, Germany
| | - Yara Maria Machlah
- Medical Faculty, Institute of Immunology, University Duisburg-Essen, Essen, Germany
| | - Maximilian Schiller
- Medical Faculty, Institute of Immunology, University Duisburg-Essen, Essen, Germany
| | - Arshia Berry
- Department of Molecular Medicine II, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Haifeng Xu
- Department of Molecular Medicine II, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | | | - Dieter Häussinger
- Department of Gastroenterology, Hepatology and Infectious Diseases, University of Düsseldorf, Düsseldorf, Germany
| | - Beatrice Thier
- Department of Dermatology, University Hospital Essen, Essen, Germany
| | - Aleksandra A Pandyra
- Department of Molecular Medicine II, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany.,Department of Gastroenterology, Hepatology and Infectious Diseases, University of Düsseldorf, Düsseldorf, Germany
| | - Dirk Schadendorf
- Department of Dermatology, University Hospital Essen, Essen, Germany.,German Cancer Consortium (DKTK), Partner Site University Hospital Essen, Essen, Germany
| | - Annette Paschen
- Department of Dermatology, University Hospital Essen, Essen, Germany.,German Cancer Consortium (DKTK), Partner Site University Hospital Essen, Essen, Germany
| | - Martin Schuler
- Department of Medical Oncology, West German Cancer Center, University Hospital Essen, University Duisburg-Essen, Essen, Germany.,German Cancer Consortium (DKTK), Partner Site University Hospital Essen, Essen, Germany
| | - Philipp A Lang
- Department of Molecular Medicine II, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Karl S Lang
- Medical Faculty, Institute of Immunology, University Duisburg-Essen, Essen, Germany
| |
Collapse
|
3
|
Cetuximab intensifies the ADCC activity of adoptive NK cells in a nude mouse colorectal cancer xenograft model. Oncol Lett 2016; 12:1868-1876. [PMID: 27602116 PMCID: PMC4998150 DOI: 10.3892/ol.2016.4835] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2015] [Accepted: 06/21/2016] [Indexed: 12/15/2022] Open
Abstract
Natural killer (NK) cells, discovered ~40 years ago, are believed to be the most effective cytotoxic lymphocytes to counteract cancer; however, adoptive NK cell therapy in vivo has encountered certain limitations, including a lack of specificity. The drug cetuximab can mediate antibody dependent cell mediated cytotoxicity (ADCC) activity through NK cells in vivo, and has been approved for the first-line treatment of epidermal growth factor receptor (EGFR)-positive metastatic colorectal cancer (CRC). However, the ADCC activity of adoptive NK cells, induced by cetuximab in a nude mouse CRC xenograft model, has not been previously reported. The aim of the present study was to explore the ADCC activity of cetuximab combined with adoptive NK cells in CRC xenograft models with various EGFR expressions. The nude mouse xenograft models were established by subcutaneously injecting LOVO or SW620 cells. The mice were then randomly divided into 6 groups: Phosphate-buffered saline, cetuximab, human immunoglobulin G (hIgG), NK cells, hIgG plus NK cells and cetuximab plus NK cells. The ADCC antitumor activity was evaluated in these CRC models. The results indicated that the cetuximab plus NK cells group showed the greatest tumor inhibition effect compared with the NK cells group in LOVO xenograft tumor models with positive EGFR expression. However, the combination of cetuximab and NK cells did not show a stronger tumor inhibitory effect against the SW620 xenograft tumor models compared with the efficiency of NK cells. In conclusion, cetuximab could intensify the ADCC antitumor activity of adoptive NK cells towards CRC with an increased EGFR expression. The combination of cetuximab and NK cells may be a potential immunotherapy for metastatic CRC patients with positive EGFR expression.
Collapse
|
4
|
Yuan H, Hsiao YH, Zhang Y, Wang J, Yin C, Shen R, Su Y. Destructive impact of T-lymphocytes, NK and Mast cells on basal cell layers: implications for tumor invasion. BMC Cancer 2013; 13:258. [PMID: 23705594 PMCID: PMC3722065 DOI: 10.1186/1471-2407-13-258] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2012] [Accepted: 05/14/2013] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Our previous studies have suggested that the primary impact of immune cell infiltration into the normal or pre-invasive tissue component is associated with the physical destruction of epithelial capsules, which may promote tumor progression and invasion. Our current study attempted to further verify our previous observations and determine the primary type(s) of infiltrating immune cells and the possible mechanism associated with physical destructions of the epithelial capsules. METHODS In total, the study was conducted with 250 primary breast and prostate tumors, the primary immune cell of cytotoxic T-lymphocytes (CTL), Natural killer cells (NK) and Mast cells were analyzed by immunohistochemistry, fluorescent labeling and apoptosis assay. qRT-PCR was used for gene expression analysis. Our current study assessed the physical disruption of these immune cells and potential impact on the epithelial capsule of human breast and prostate tumors. RESULTS Our study yield several clinically-relevant findings that have not been studied before. (1) A vast majority of these infiltrating immune cells are distributed in the normal-appearing or pre-invasive tissue components rather than in invasive cancer tissues. (2) These cells often form rings or semilunar structures that either surround focally-disrupted basal cell layers or physically attach to the basal cells. (3) Basal cells physically associated with these immune cells generally displayed distinct signs of degeneration, including substantially elevated apoptosis, necrosis, and reduced tumor suppressor p63 expression. In contrast, luminal cells overlying focally disrupted basal cell layers had a substantially increased proliferation rate and elevated expression of stem cell markers compared to their adjacent morphologically similar counterparts that overlie a non-disrupted capsule. CONCLUSION Our findings suggest that at the early stage of tumor invasion, CTL, NK and Mast cells are the main types of tumor infiltrating immune cells involved in focal degenerative products in the tumor capsules. The primary impact of these infiltrating immune cells is that they are associated with focal disruptions of the tumor capsule, which selectively favor tumor stem cells proliferation and invasion.
Collapse
Affiliation(s)
- Hongyan Yuan
- Department of Oncology, the Affiliated Nanjing Maternity and Child Health Care Hospital, Nanjing Medical University, Nanjing, China.
| | | | | | | | | | | | | |
Collapse
|
5
|
Maghazachi AA. On the role of natural killer cells in neurodegenerative diseases. Toxins (Basel) 2013; 5:363-75. [PMID: 23430541 PMCID: PMC3640540 DOI: 10.3390/toxins5020363] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2012] [Revised: 02/07/2013] [Accepted: 02/07/2013] [Indexed: 12/15/2022] Open
Abstract
Natural killer (NK) cells exert important immunoregulatory functions by releasing several inflammatory molecules, such as IFN-γ and members of chemokines, which include CCL3/MIP-1α and CCL4/MIP-1β. These cells also express heptahelical receptors, which are coupled to heterotrimeric G proteins that guide them into inflamed and injured tissues. NK cells have been shown to recognize and destroy transformed cells and virally-infected cells, but their roles in neurodegenerative diseases have not been examined in detail. In this review, I will summarize the effects of NK cells in two neurodegenerative diseases, namely multiple sclerosis and globoid cell leukodystrophy. It is hoped that the knowledge obtained from these diseases may facilitate building rational protocols for treating these and other neurodegenerative or autoimmune diseases using NK cells and drugs that activate them as therapeutic tools.
Collapse
Affiliation(s)
- Azzam A Maghazachi
- Department of Physiology, Institute of Basic Medical, University of Oslo, Oslo, Norway.
| |
Collapse
|
6
|
Mitchell DA, Karikari I, Cui X, Xie W, Schmittling R, Sampson JH. Selective modification of antigen-specific T cells by RNA electroporation. Hum Gene Ther 2008; 19:511-21. [PMID: 18471037 DOI: 10.1089/hum.2007.115] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
It has been observed that the efficient transfection of T cells by RNA electroporation requires prior activation of T cells with mitogens or by anti-CD3 antibody stimulation. We hypothesized that this requirement for T cell activation could be leveraged to express marker genes within activated T cells responding to antigen-pulsed dendritic cells and allow for the selective enrichment and modification of antigen-specific T cells. Using electroporation of mRNA encoding green fluorescent protein as a marker gene, we demonstrate that RNA electroporation can efficiently allow for the separation of cytomegalovirus-specific CD8+ and CD4+ T cells from bulk culture responding to cytomegalovirus pp65 antigen-pulsed dendritic cells. Furthermore, we demonstrate that cytomegalovirus-specific T cells can be functionally modified by RNA transfection of the C-X-C chemokine receptor, CXCR2, to migrate efficiently toward a variety of CXCR2-specific chemokines in vitro and in vivo. These studies demonstrate the utility of RNA transfection as a simple method by which to purify and selectively modify the function of antigen-specific T cells for use in adoptive immunotherapy, and importantly provide evidence that transient expression of proteins by RNA transfection is an efficient means of modulating the in vivo function of activated T cells.
Collapse
Affiliation(s)
- Duane A Mitchell
- Division of Neurosurgery, Department of Surgery, Preston Robert Tisch Brain Tumor Center at Duke, Duke University Medical Center, Durham, NC 27710, USA.
| | | | | | | | | | | |
Collapse
|
7
|
Castriconi R, Dondero A, Cilli M, Ognio E, Pezzolo A, De Giovanni B, Gambini C, Pistoia V, Moretta L, Moretta A, Corrias MV. Human NK cell infusions prolong survival of metastatic human neuroblastoma-bearing NOD/scid mice. Cancer Immunol Immunother 2007; 56:1733-42. [PMID: 17426969 PMCID: PMC11030705 DOI: 10.1007/s00262-007-0317-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2006] [Accepted: 03/11/2007] [Indexed: 10/23/2022]
Abstract
AIM Several lines of evidence suggest that NK cell immunotherapy may represent a successful approach in neuroblastoma (NB) patients refractory to conventional therapy. However, homing properties, safety and therapeutic efficacy of NK cell infusions need to be evaluated in a suitable preclinical murine NB model. MATERIALS AND METHODS Here, the therapeutic efficacy of NK cell infusions in the presence or absence of NK-activating cytokines have been evaluated in a NB metastatic model set up in NOD/scid mice, that display reduced functional activity of endogenous NK cells. RESULTS In NOD/scid mice the injected NB cells rapidly reached all the typical sites of metastatization, including bone marrow. Infusion of polyclonal IL2-activated NK cells was followed by dissemination of these cells into various tissues including those colonized by metastatic NB cells. The early repeated injection of IL2-activated NK cells in NB-bearing NOD/scid mice significantly increased the mean survival time, which was associated with a reduced bone marrow infiltration. The therapeutic effect was further enhanced by low doses of human recombinant IL2 or IL15. CONCLUSION Our results indicate that NK-based adoptive immunotherapy can represent a valuable adjuvant in the treatment of properly selected NB patients presenting with metastatic disease, if performed in a minimal residual disease setting.
Collapse
Affiliation(s)
| | | | - Michele Cilli
- Animal Facility, Istituto Nazionale per la Ricerca sul Cancro, Genoa, Italy
| | - Emanuela Ognio
- Animal Facility, Istituto Nazionale per la Ricerca sul Cancro, Genoa, Italy
| | - Annalisa Pezzolo
- Laboratory of Oncology, Gaslini Institute, L.go Gaslini, 5, 16148 Genoa, Italy
| | | | | | - Vito Pistoia
- Laboratory of Oncology, Gaslini Institute, L.go Gaslini, 5, 16148 Genoa, Italy
| | - Lorenzo Moretta
- Laboratory of Experimental and Clinical Immunology, Gaslini Institute, Genoa, Italy
- Centro di Eccellenza per le Ricerche Biomediche, University of Genoa, Genoa, Italy
| | - Alessandro Moretta
- Department of Experimental Medicine, University of Genoa, Genoa, Italy
- Centro di Eccellenza per le Ricerche Biomediche, University of Genoa, Genoa, Italy
| | | |
Collapse
|
8
|
Grundy MA, Zhang T, Sentman CL. NK cells rapidly remove B16F10 tumor cells in a perforin and interferon-gamma independent manner in vivo. Cancer Immunol Immunother 2007; 56:1153-61. [PMID: 17160409 PMCID: PMC11030153 DOI: 10.1007/s00262-006-0264-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2006] [Accepted: 11/15/2006] [Indexed: 11/27/2022]
Abstract
Natural killer (NK) cells have been shown critical in reducing tumor lung metastasis in various murine cancer models. Effector molecules such as perforin and IFN-gamma may play important roles in inhibition of metastasis. However, most of these conclusions were based on experiments that involved quantitation of metastatic colonies several weeks after tumor challenge. The roles of NK cells and their effector molecules (perforin and IFN-gamma) in the initial immune responses against tumor metastasis in lungs are still unknown. By using the B16F10 melanoma tumor model combined with confocal microscopy, we observed an increase in numbers of B16F10 cells in NK-depleted mice at 60 min post tumor inoculation, but this effect was independent of perforin or IFN-gamma. In addition, NK cell numbers in lungs after tumor injection rapidly increased suggesting a redistribution of NK cells in the lungs. However, NK cells were not found in contact with tumor cells until day 6 or later. Our data indicate that during early responses against B16F10 cells, NK cells use another mechanism(s) besides perforin and IFN-gamma to prevent tumor metastasis.
Collapse
MESH Headings
- Animals
- Antibodies, Monoclonal/immunology
- Antigens, Surface/immunology
- Fluorescent Dyes/analysis
- Immunologic Surveillance
- Injections, Intravenous
- Interferon-gamma/deficiency
- Interferon-gamma/genetics
- Interferon-gamma/physiology
- Killer Cells, Lymphokine-Activated/immunology
- Killer Cells, Natural/immunology
- Lectins, C-Type/immunology
- Luminescent Proteins/analysis
- Lung Neoplasms/immunology
- Lung Neoplasms/pathology
- Lung Neoplasms/secondary
- Lymphocyte Depletion
- Melanoma, Experimental/immunology
- Melanoma, Experimental/secondary
- Membrane Glycoproteins/deficiency
- Membrane Glycoproteins/genetics
- Membrane Glycoproteins/physiology
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Microscopy, Confocal
- NK Cell Lectin-Like Receptor Subfamily B
- Neoplasm Transplantation
- Perforin
- Pore Forming Cytotoxic Proteins/deficiency
- Pore Forming Cytotoxic Proteins/genetics
- Pore Forming Cytotoxic Proteins/physiology
- Time Factors
- Red Fluorescent Protein
Collapse
Affiliation(s)
- Martin A. Grundy
- Department of Microbiology and Immunology, Dartmouth Medical School, 6W Borwell Building, One Medical Center Drive, Lebanon, NH 03756 USA
| | - Tong Zhang
- Department of Microbiology and Immunology, Dartmouth Medical School, 6W Borwell Building, One Medical Center Drive, Lebanon, NH 03756 USA
| | - Charles L. Sentman
- Department of Microbiology and Immunology, Dartmouth Medical School, 6W Borwell Building, One Medical Center Drive, Lebanon, NH 03756 USA
| |
Collapse
|
9
|
Matera L, Galetto A, Bello M, Baiocco C, Chiappino I, Castellano G, Stacchini A, Satolli MA, Mele M, Sandrucci S, Mussa A, Bisi G, Whiteside TL. In vivo migration of labeled autologous natural killer cells to liver metastases in patients with colon carcinoma. J Transl Med 2006; 4:49. [PMID: 17105663 PMCID: PMC1681349 DOI: 10.1186/1479-5876-4-49] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2006] [Accepted: 11/14/2006] [Indexed: 11/17/2022] Open
Abstract
Background Besides being the effectors of native anti-tumor cytotoxicity, NK cells participate in T-lymphocyte responses by promoting the maturation of dendritic cells (DC). Adherent NK (A-NK) cells constitute a subset of IL-2-stimulated NK cells which show increased expression of integrins and the ability to adhere to solid surface and to migrate, infiltrate, and destroy cancer. A critical issue in therapy of metastatic disease is the optimization of NK cell migration to tumor tissues and their persistence therein. This study compares localization to liver metastases of autologous A-NK cells administered via the systemic (intravenous, i.v.) versus locoregional (intraarterial, i.a.) routes. Patients and methods A-NK cells expanded ex-vivo with IL-2 and labeled with 111In-oxine were injected i.a. in the liver of three colon carcinoma patients. After 30 days, each patient had a new preparation of 111In-A-NK cells injected i.v. Migration of these cells to various organs was evaluated by SPET and their differential localization to normal and neoplastic liver was demonstrated after i.v. injection of 99mTc-phytate. Results A-NK cells expressed a donor-dependent CD56+CD16+CD3- (NK) or CD56+CD16+CD3+ (NKT) phenotype. When injected i.v., these cells localized to the lung before being visible in the spleen and liver. By contrast, localization of i.a. injected A-NK cells was virtually confined to the spleen and liver. Binding of A-NK cells to liver neoplastic tissues was observed only after i.a. injections. Conclusion This unique study design demonstrates that A-NK cells adoptively transferred to the liver via the intraarterial route have preferential access and substantial accumulation to the tumor site.
Collapse
Affiliation(s)
- Lina Matera
- Dept. of Internal Medicine, University of Turin, Italy
| | | | - Marilena Bello
- S.C.D.U. of Nuclear Medicine 2, Molinette Hospital, Turin, Italy
| | - Cinzia Baiocco
- S.C.D.U. of Nuclear Medicine 2, Molinette Hospital, Turin, Italy
| | | | | | | | - Maria A Satolli
- Dept. of Biological and Clinical Science, S. Luigi's Hospital, Orbassano, Italy
| | - Michele Mele
- Dept of Surgical and Medical Disciplines, University of Turin, Italy
| | | | - Antonio Mussa
- S.C.D.U. of Surgical Oncology, University of Turin, Italy
| | - Gianni Bisi
- S.C.D.U. of Nuclear Medicine 2, Molinette Hospital, Turin, Italy
| | | |
Collapse
|
10
|
NK cell-based immunotherapies against tumors. Open Med (Wars) 2006. [DOI: 10.2478/s11536-006-0023-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
AbstractNatural killer (NK) cells provide the first line of defence against pathogens and tumors. Their activation status is regulated by pro-inflammatory cytokines and by ligands that either target inhibitory or activating cell surface receptors belonging to the immunoglobulin-like, C-type lectin or natural cytotoxicity receptor families. Apart from non-classical HLA-E, membrane-bound heat shock protein 70 (Hsp70) has been identified as a tumor-specific recognition structure for NK cells expressing high amounts of the C-type lectin receptor CD94, acting as one component of an activating heterodimeric receptor complex. Full-length Hsp70 protein (Hsp70) or the 14-mer Hsp70 peptide T-K-D-N-N-L-L-G-R-F-E-L-S-G (TKD) in combination with pro-inflammatory cytokines enhances the cytolytic activity of NK cells towards Hsp70 membrane-positive tumors. Based on these findings cytokine/TKD-activated NK cells were adoptively transferred in tumor patients. These findings were compared to results of clinical trials using cytokine-activated NK cells.
Collapse
|
11
|
Lozupone F, Pende D, Burgio VL, Castelli C, Spada M, Venditti M, Luciani F, Lugini L, Federici C, Ramoni C, Rivoltini L, Parmiani G, Belardelli F, Rivera P, Marcenaro S, Moretta L, Fais S. Effect Of Human Natural Killer and γδ T Cells on the Growth of Human Autologous Melanoma Xenografts in SCID Mice. Cancer Res 2004; 64:378-85. [PMID: 14729648 DOI: 10.1158/0008-5472.can-03-1501] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Natural killer (NK) cells were first identified for their ability to kill tumor cells of different origin in vitro. Similarly, gammadelta T lymphocytes display strong cytotoxic activity against various tumor cell lines. However, the ability of both the NK and gammadelta cells to mediate natural immune response against human malignant tumors in vivo is still poorly defined. Severe combined immunodeficient (SCID) mice have been successfully engrafted with human tumors. In this study, the antitumor effect of local as well as of systemic treatments based on NK cells or Vdelta1 or Vdelta2 gamma/delta T lymphocytes against autologous melanoma cells was investigated in vivo. The results show that all three of the populations were effective in preventing growth of autologous human melanomas when both tumor and lymphoid cells were s.c. inoculated at the same site. However, when lymphoid cells were infused i.v., only NK cells and Vdelta1 gamma/delta T lymphocytes could either prevent or inhibit the s.c. growth of autologous melanoma. Accordingly, both NK cells and Vdelta1 gammadelta T lymphocytes could be detected at the s.c. tumor site. In contrast, Vdelta2 gammadelta T lymphocytes were only detectable in the spleen of the SCID mice. Moreover, NK cells maintained their inhibitory effect on tumor growth even after discontinuation of the treatment. Indeed they were present at the tumor site for a longer period. These data support the possibility to exploit NK cells and Vdelta1 gammadelta T lymphocytes in tumor immunotherapy. Moreover, our study emphasizes the usefulness of human tumor/SCID mouse models for preclinical evaluation of immunotherapy protocols against human tumors.
Collapse
Affiliation(s)
- Francesco Lozupone
- Laboratories of Immunology and Virology, Istituto Superiore di Sanità, Rome, Italy
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Abstract
Non-classical MHC class Ib molecules have attracted growing interest in recent years, especially because they interact with non-T-cell inhibitory or triggering receptors expressed on natural killer (NK) and T cells, suggesting that they have a role in immune recognition. Abnormalities in MHC class Ib expression are frequently found in human tumors of various histologies and might be associated with poor clinical outcome despite the local accumulation of immune competent cells. Available data suggest that the balance between activating and suppressing signals significantly influences the efficacy of the immune response and consequently of tumor progression.
Collapse
Affiliation(s)
- Barbara Seliger
- Johannes Gutenberg University, IIIrd Department of Internal Medicine, Johannes Gutenberg Universität, Langenbeckstr. 1D-55101 Mainz, Germany.
| | | | | |
Collapse
|
13
|
Yang JH, You TG, Li N, Qian QJ, Wang P, Yan ZL, Wu MC. Relationship between the imaging features and pathologic alteration in hepatoma of rats. World J Gastroenterol 2003; 9:69-72. [PMID: 12508354 PMCID: PMC4728252 DOI: 10.3748/wjg.v9.i1.69] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: The imaging features of MRI and DSA, using the models of implanted and induced hepatoma, were investigated in rats.
METHODS: CBRH3 cancer cells were implanted for different liver site of rat liver and the diethylnitrosoamine was given orally to rats in order to induce liver cancer. Both experimental groups were detected by magnetic resonance imaging (MRI), digital subtraction angiography (DSA) and morphologic assay.
RESULTS: Hypointensity on T1WI and homogenous high signal intensity on T2WI in MRI, and ring-like abnormal stain on DSA were found in implanted cancer. Induced cancers appeared as homogeneous or heterogeneous hypointensity on T1WI (10 cases), and equal or slight high intensity on T2WI (8 cases), but some as hypointensity on T2WI (2 cases).
CONCLUSION: The imaging features of implanted cancers were similar to that of human liver metastases. Therefore, it could serve as an experimental model of human liver metastatic tumor. The imaging feature of induced cancers, whereas, were similar to that of human primary liver cancer. It could be use as an experimental model of human primary liver cancer.
Collapse
Affiliation(s)
- Jia-He Yang
- Department of Comprehensive Treatment III, Eastern Heptobiliary Hospital, Second Military Medical University, Changhai Road 225, Shanghai 200433, China.
| | | | | | | | | | | | | |
Collapse
|