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Ding YD, Shu LZ, He RS, Chen KY, Deng YJ, Zhou ZB, Xiong Y, Deng H. Listeria monocytogenes: a promising vector for tumor immunotherapy. Front Immunol 2023; 14:1278011. [PMID: 37868979 PMCID: PMC10587691 DOI: 10.3389/fimmu.2023.1278011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 09/25/2023] [Indexed: 10/24/2023] Open
Abstract
Cancer receives enduring international attention due to its extremely high morbidity and mortality. Immunotherapy, which is generally expected to overcome the limits of traditional treatments, serves as a promising direction for patients with recurrent or metastatic malignancies. Bacteria-based vectors such as Listeria monocytogenes take advantage of their unique characteristics, including preferential infection of host antigen presenting cells, intracellular growth within immune cells, and intercellular dissemination, to further improve the efficacy and minimize off-target effects of tailed immune treatments. Listeria monocytogenes can reshape the tumor microenvironment to bolster the anti-tumor effects both through the enhancement of T cells activity and a decrease in the frequency and population of immunosuppressive cells. Modified Listeria monocytogenes has been employed as a tool to elicit immune responses against different tumor cells. Currently, Listeria monocytogenes vaccine alone is insufficient to treat all patients effectively, which can be addressed if combined with other treatments, such as immune checkpoint inhibitors, reactivated adoptive cell therapy, and radiotherapy. This review summarizes the recent advances in the molecular mechanisms underlying the involvement of Listeria monocytogenes vaccine in anti-tumor immunity, and discusses the most concerned issues for future research.
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Affiliation(s)
- Yi-Dan Ding
- Medical College, Nanchang University, Nanchang, China
| | - Lin-Zhen Shu
- Medical College, Nanchang University, Nanchang, China
| | - Rui-Shan He
- Medical College, Nanchang University, Nanchang, China
| | - Kai-Yun Chen
- Office of Clinical Trials Administration, The Fourth Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yan-Juan Deng
- Department of Pathology, The Fourth Affiliated Hospital of Nanchang University, Nanchang, China
- Tumor Immunology Institute, Nanchang University, Nanchang, China
| | - Zhi-Bin Zhou
- Department of Pathology, The Fourth Affiliated Hospital of Nanchang University, Nanchang, China
- Tumor Immunology Institute, Nanchang University, Nanchang, China
| | - Ying Xiong
- Department of General Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Huan Deng
- Department of Pathology, The Fourth Affiliated Hospital of Nanchang University, Nanchang, China
- Tumor Immunology Institute, Nanchang University, Nanchang, China
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2
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Li J, Yang J, Xing R, Wang Y. A novel inflammation-related signature for predicting prognosis and characterizing the tumor microenvironment in colorectal cancer. Aging (Albany NY) 2023; 15:2554-2581. [PMID: 37014331 PMCID: PMC10120913 DOI: 10.18632/aging.204630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 03/17/2023] [Indexed: 04/05/2023]
Abstract
Inflammation is a critical component of tumor progression, and it modifies the tumor microenvironment by various mechanisms. Here, we explore the effect of the inflammatory response on the tumor microenvironment in colorectal cancer (CRC). A prognostic signature consisting of inflammation-related genes (IRGs) was constructed and verified based on the inflammatory response by bioinformatics analysis. IRG risk model was identified as an independent prognostic factor in CRC, and was related to biological processes of extracellular matrix, cell adhesion and angiogenesis. The IRG risk score predicted the clinical benefit of ipilimumab. Weighted correlation network analysis identified TIMP1 as the hub gene of the inflammatory response in the IRG risk model. Coculture experiments with macrophages and CRC cells revealed that TIMP1 promoted macrophage migration, inhibited the expression of M1 markers (CD11C and CD80), and promoted the expression of M2 markers (ARG1 and CD163). TIMP1 promoted the expression of ICAM1 and CCL2 by activating the ERK1/2 signaling pathway to promote macrophage migration and M2-like polarization. These IRGs in the risk model regulated stromal and immune components in the tumor microenvironment and could serve as potential therapeutic targets in CRC. TIMP1 promoted macrophage migration and meditated macrophage M2 polarization by activating ERK1/2/CLAM1 and CCL2.
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Affiliation(s)
- Jinna Li
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning, China
| | - Jiapeng Yang
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning, China
| | - Rui Xing
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning, China
| | - Ying Wang
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning, China
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3
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Yang M, Yang F, Chen W, Liu S, Qiu L, Chen J. Bacteria-mediated cancer therapies: opportunities and challenges. Biomater Sci 2021; 9:5732-5744. [PMID: 34313267 DOI: 10.1039/d1bm00634g] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In recent years, cancer therapy strategies utilizing live tumor-targeting bacteria have presented unique advantages. Engineered bacteria have the particular ability to distinguish tumors from normal tissues with less toxicity. Live bacteria are naturally capable of homing to tumors, resulting in high levels of local colonization because of insufficient oxygen and low pH in the tumor microenvironment. Bacteria initiate their antitumor effects by directly killing the tumor or by activating innate and adaptive antitumor immune responses. The bacterial vectors can be reprogrammed following advanced DNA synthesis, sophisticated genetic bioengineering, and biosensors to engineer microorganisms with complex functions, and then produce and deliver anticancer agents based on clinical needs. However, because of the lack of knowledge on the mechanisms and side effects of microbial cancer therapy, developing such smart microorganisms to treat or prevent cancer remains a significant challenge. In this review, we summarized the potential, status, opportunities and challenges of this growing field. We illustrated the mechanism of tumor regression induced by engineered bacteria and discussed the recent advances in the application of bacteria-mediated cancer therapy to improve efficacy, safety and drug delivery. Finally, we shared our insights into the future directions of tumor-targeting bacteria in cancer therapy.
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Affiliation(s)
- Meiyang Yang
- School of Pharmaceutical Sciences, Jiangnan University, Wuxi 214122, PR China.
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4
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Traylor JI, Pernik MN, Plitt AR, Lim M, Garzon-Muvdi T. Immunotherapy for Chordoma and Chondrosarcoma: Current Evidence. Cancers (Basel) 2021; 13:2408. [PMID: 34067530 PMCID: PMC8156915 DOI: 10.3390/cancers13102408] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/10/2021] [Accepted: 05/12/2021] [Indexed: 12/21/2022] Open
Abstract
Chordomas and chondrosarcomas are rare but devastating neoplasms that are characterized by chemoradiation resistance. For both tumors, surgical resection is the cornerstone of management. Immunotherapy agents are increasingly improving outcomes in multiple cancer subtypes and are being explored in chordoma and chondrosarcoma alike. In chordoma, brachyury has been identified as a prominent biomarker and potential molecular immunotherapy target as well as PD-1 inhibition. While studies on immunotherapy in chondrosarcoma are sparse, there is emerging evidence and ongoing clinical trials for PD-1 as well as IDH inhibitors. This review highlights potential biomarkers and targets for immunotherapy in chordoma and chondrosarcoma, as well as current clinical evidence and ongoing trials.
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Affiliation(s)
- Jeffrey I. Traylor
- Department of Neurological Surgery, The University of Texas Southwestern Medical Center, Dallas, TX 75235, USA; (J.I.T.); (M.N.P.); (A.R.P.)
| | - Mark N. Pernik
- Department of Neurological Surgery, The University of Texas Southwestern Medical Center, Dallas, TX 75235, USA; (J.I.T.); (M.N.P.); (A.R.P.)
| | - Aaron R. Plitt
- Department of Neurological Surgery, The University of Texas Southwestern Medical Center, Dallas, TX 75235, USA; (J.I.T.); (M.N.P.); (A.R.P.)
| | - Michael Lim
- Department of Neurosurgery, Stanford University Medical Center, Stanford, CA 94305, USA;
| | - Tomas Garzon-Muvdi
- Department of Neurological Surgery, The University of Texas Southwestern Medical Center, Dallas, TX 75235, USA; (J.I.T.); (M.N.P.); (A.R.P.)
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5
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Guerrouahen B, Elnaggar M, Al-Mohannadi A, Kizhakayil D, Bonini C, Benjamin R, Brentjens R, Buchholz CJ, Casorati G, Ferrone S, Locke FL, Martin F, Schambach A, Turtle C, Veys P, van der Vliet HJ, Maccalli C. Proceedings From the First International Workshop at Sidra Medicine: "Engineered Immune Cells in Cancer Immunotherapy (EICCI): From Discovery to Off-the-Shelf Development", 15 th-16 th February 2019, Doha, Qatar. Front Immunol 2021; 11:589381. [PMID: 33584653 PMCID: PMC7874217 DOI: 10.3389/fimmu.2020.589381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 11/30/2020] [Indexed: 11/13/2022] Open
Abstract
The progress in the isolation and characterization of tumor antigen (TA)-specific T lymphocytes and in the genetic modification of immune cells allowed the clinical development of adoptive cell therapy (ACT). Several clinical studies highlighted the striking clinical activity of T cells engineered to express either Chimeric Antigen (CAR) or T Cell (TCR) Receptors to target molecularly defined antigens expressed on tumor cells. The breakthrough of immunotherapy is represented by the approval of CAR-T cells specific for advanced or refractory CD19+ B cell malignancies by both the Food and Drug Administration (FDA) and the European Medicinal Agency (EMA). Moreover, advances in the manufacturing and gene editing of engineered immune cells contributed to the selection of drug products with desired phenotype, refined specificity and decreased toxicity. An important step toward the optimization of CAR-T cell therapy is the development of "off-the shelf" T cell products that allow to reduce the complexity and the costs of the manufacturing and to render these drugs available for a broad number of cancer patients. The Engineered Immune Cells in Cancer Immunotherapy (EICCI) workshop hosted in Doha, Qatar, renowned experts, from both academia and industry, to present and discuss the progress on both pre-clinical and clinical development of genetically modified immune cells, including advances in the "off-the-shelf" manufacturing. These experts have addressed also organizational needs and hurdles for the clinical grade production and application of these biological drugs.
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Affiliation(s)
| | | | | | | | - Chiara Bonini
- Experimental Hematology Unit, University Vita-Salute San Raffaele and Hospital San Raffaele Scientific Institute, Milan, Italy
| | - Reuben Benjamin
- Division of Cancer Studies, King's College Hospital, London, United Kingdom
| | - Renier Brentjens
- Cellular Therapeutics, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Christian J Buchholz
- Research Unit for Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, Langen, Germany
| | - Giulia Casorati
- Experimental Immunology Unit, University Vita-Salute San Raffaele and Hospital San Raffaele Scientific Institute, Milan, Italy
| | - Soldano Ferrone
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
| | - Frederick L Locke
- Department of Blood and Marrow Transplant and Cellular Immunotherapy, Moffitt Cancer Center, Tampa, FL, United States
| | - Francisco Martin
- Pfizer/University of Granada/Andalusian Regional Government, Genomic Medicine Department, Granada, Spain
| | - Axel Schambach
- Institute of Experimental Hematology, Hannover Medical School, Hannover, Germany.,Division of Hematology/Oncology, Boston Children's Hospital, Harvard Medical School, Boson, MA, United States
| | - Cameron Turtle
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, United States
| | - Paul Veys
- Bone Marrow Transplant Unit, Great Ormond Street (GOS) Hospital, and University College London GOS Institute of Child Health, London, United Kingdom
| | - Hans J van der Vliet
- Hans van Der Vliet, Department of Medical Oncology, Amsterdam UMC, VU University and Cancer Center, Amsterdam, Netherlands.,Lava Therapeutics, Utrecht, Netherlands
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6
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Iesato A, Nucera C. Tumor Microenvironment-Associated Pericyte Populations May Impact Therapeutic Response in Thyroid Cancer. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1329:253-269. [PMID: 34664244 PMCID: PMC9839315 DOI: 10.1007/978-3-030-73119-9_14] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Thyroid cancer is the most common endocrine malignancy, and aggressive radioactive iodine refractory thyroid carcinomas still lack an effective treatment. A deeper understanding of tumor heterogeneity and microenvironment will be critical to establishing new therapeutic approaches. One of the important influencing factors of tumor heterogeneity is the diversity of cells in the tumor microenvironment. Among these are pericytes, which play an important role in blood vessel stability and angiogenesis, as well as tumor growth and metastasis. Pericytes also have stem cell-like properties and are a heterogeneous cell population, and their lineage, which has been challenging to define, may impact tumor resistance at different tumor stages. Pericytes are also important stroma cell types in the angiogenic microenvironment which express tyrosine-kinase (TK) pathways (e.g., PDGFR-β). Although TK inhibitors (TKI) and BRAFV600E inhibitors are currently used in the clinic for thyroid cancer, their efficacy is not durable and drug resistance often develops. Characterizing the range of distinct pericyte populations and distinguishing them from other perivascular cell types may enable the identification of their specific functions in the thyroid carcinoma vasculature. This remains an essential step in developing new therapeutic strategies. Also, assessing whether thyroid tumors hold immature and/or mature vasculature with pericyte populations coverage may be key to predicting tumor response to either targeted or anti-angiogenesis therapies. It is also critical to apply different markers in order to identify pericyte populations and characterize their cell lineage. This chapter provides an overview of pericyte ontogenesis and the lineages of diverse cell populations. We also discuss the role(s) and targeting of pericytes in thyroid carcinoma, as well as their potential impact on precision targeted therapies and drug resistance.
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Affiliation(s)
- Asumi Iesato
- Human Thyroid Cancers Preclinical and Translational Research Program, Division of Experimental Pathology, Cancer Research Institute, Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA,Center for Vascular Biology Research (CVBR), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Carmelo Nucera
- Human Thyroid Cancers Preclinical and Translational Research Program, Division of Experimental Pathology, Cancer Research Institute, Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA,Center for Vascular Biology Research (CVBR), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA,Broad Institute of MIT and Harvard, Cambridge, MA, USA
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7
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Wooster AL, Girgis LH, Brazeale H, Anderson TS, Wood LM, Lowe DB. Dendritic cell vaccine therapy for colorectal cancer. Pharmacol Res 2020; 164:105374. [PMID: 33348026 DOI: 10.1016/j.phrs.2020.105374] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 12/03/2020] [Accepted: 12/04/2020] [Indexed: 02/06/2023]
Abstract
Colorectal cancer (CRC) remains a leading cause of cancer-related deaths in the United States despite an array of available treatment options. Current standard-of-care interventions for this malignancy include surgical resection, chemotherapy, and targeted therapies depending on the disease stage. Specifically, infusion of anti-vascular endothelial growth factor agents in combination with chemotherapy was an important development in improving the survival of patients with advanced colorectal cancer, while also helping give rise to other forms of anti-angiogenic therapies. Yet, one approach by which tumor angiogenesis may be further disrupted is through the administration of a dendritic cell (DC) vaccine targeting tumor-derived blood vessels, leading to cytotoxic immune responses that decrease tumor growth and synergize with other systemic therapies. Early generations of such vaccines exhibited protection against various forms of cancer in pre-clinical models, but clinical results have historically been disappointing. Sipuleucel-T (Provenge®) was the first, and to-date, only dendritic cell-based therapy to receive FDA approval after significantly increasing overall survival in prostate cancer patients. The unparalleled success of Sipuleucel-T has helped revitalize the clinical development of dendritic cell vaccines, which will be examined in this review. We also highlight the promise of these vaccines to instill anti-angiogenic immunity for individuals with advanced colorectal cancer.
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Affiliation(s)
- Amanda L Wooster
- Department of Immunotherotherapeutics and Biotechnology, Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Abilene, TX, 79601, United States
| | - Lydia H Girgis
- Department of Immunotherotherapeutics and Biotechnology, Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Abilene, TX, 79601, United States
| | - Hayley Brazeale
- Department of Immunotherotherapeutics and Biotechnology, Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Abilene, TX, 79601, United States
| | - Trevor S Anderson
- Department of Immunotherotherapeutics and Biotechnology, Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Abilene, TX, 79601, United States
| | - Laurence M Wood
- Department of Immunotherotherapeutics and Biotechnology, Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Abilene, TX, 79601, United States
| | - Devin B Lowe
- Department of Immunotherotherapeutics and Biotechnology, Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Abilene, TX, 79601, United States.
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8
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Eng C, Fakih M, Amin M, Morris V, Hochster HS, Boland PM, Uronis H. A phase II study of axalimogene filolisbac for patients with previously treated, unresectable, persistent/recurrent loco-regional or metastatic anal cancer. Oncotarget 2020; 11:1334-1343. [PMID: 32341753 PMCID: PMC7170499 DOI: 10.18632/oncotarget.27536] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 03/14/2020] [Indexed: 12/31/2022] Open
Abstract
Squamous cell carcinoma of the anorectal canal (SCCA) is a rare HPV-related malignancy that is steadily increasing in incidence. A high unmet need exists for patients with persistent loco-regional and metastatic disease. Axalimogene filolisbac (ADXS11-001) is an investigational immunotherapy that stimulates tumor-specific responses against HPV-associated cancers, and has demonstrated benefit in metastatic cervical cancer. We conducted this single-arm, multicenter, phase 2 trial in patients with persistent/recurrent, loco-regional or metastatic SCCA. Patients received ADXS11-001, 1 × 109 colony-forming units intravenously every 3 weeks. A Simon 2-stage design was used to test primary co-endpoints of overall response rate (ORR) and 6-month progression-free survival (PFS) rate. Study would proceed to full enrollment if ORR ≥ 10% or 6-month PFS rate ≥ 20%. Thirty-six patients were treated; 29 patients were evaluable for response. One patient had a prolonged partial response (3.4% ORR). The 6-month PFS rate was 15.5%. Grade 3 adverse event were noted in 10 patients, with the majority being cytokine-release symptoms; one grade 4 adverse event was noted. No grade 5 adverse events occurred. ADXS11-001 was safe and well-tolerated in patients with SCCA. However, this study did not meet either primary endpoint. ADXS11-001 may be more beneficial when administered in combination with other cytotoxic or targeted agents.
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Affiliation(s)
- Cathy Eng
- MD Anderson Cancer Center, Houston, TX, USA
| | | | - Manik Amin
- Siteman Cancer Center, Washington University School of Medicine, St. Louis, MO, USA
| | - Van Morris
- MD Anderson Cancer Center, Houston, TX, USA
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9
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Gilley RP, Dube PH. Checkpoint blockade inhibitors enhances the effectiveness of a Listeria monocytogenes-based melanoma vaccine. Oncotarget 2020; 11:740-754. [PMID: 32133048 PMCID: PMC7041938 DOI: 10.18632/oncotarget.27490] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 01/29/2020] [Indexed: 12/16/2022] Open
Abstract
Melanoma continues to be a significant health concern worldwide despite recent improvements in treatment. Unlike many other prominent cancers, melanoma incidence in both men and women increased over the past decade in the U. S. and much of the developed world. The single greatest risk factor for melanoma is damage from ultraviolet radiation associated with lifestyle. The lifestyle component suggests that although melanoma risk can be minimized with behavioral changes, vaccinating high-risk individuals against melanoma may be the most efficacious preventative method. Accordingly, using a highly attenuated, double-mutant L. monocytogenes strain expressing a tumor-associated antigen, we obtained significant protection against melanoma in a mouse model. The Listeria-based vaccine induced protection through antigen-specific CD8+ T-cells inducing both a protective primary and a memory T-cell response. Vaccinated animals were significantly protected from melanoma. When used in conjunction with checkpoint blockade treatment, the vaccine substantially reduced tumor size and number relative to animals receiving checkpoint blockade (CPB) alone. This study provides evidence that CPB treatment synergizes with a L. monocytogenes-based melanoma vaccine to enhance vaccine-mediated protection.
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Affiliation(s)
- Ryan P. Gilley
- Department of Microbiology, Immunology and Molecular Genetics, The University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, United States
| | - Peter H. Dube
- Department of Microbiology, Immunology and Molecular Genetics, The University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, United States
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10
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Ferrone S, Whiteside TL. Targeting CSPG4 for isolation of melanoma cell-derived exosomes from body fluids. HNO 2020; 68:100-105. [PMID: 32006045 DOI: 10.1007/s00106-019-00811-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This manuscript describes the functional properties of the exosomes released from melanoma cells. It details the characteristics of the tumor antigen chondroitin sulfate proteoglycan 4 (CSPG4), which is used as a marker to separate exosomes released by melanoma cells from exosomes released by nonmalignant cells. The results are discussed in view of the potential role of melanoma cell-derived exosomes in the escape of malignant cells from the host's immune system.
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Affiliation(s)
- S Ferrone
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, 02114, Boston, MA, USA.
| | - T L Whiteside
- Departments of Pathology, Immunology and Otolaryngology, University of Pittsburgh School of Medicine and UPMC Hillman Cancer Center, 15213, Pittsburgh, PA, USA
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11
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Ghouse SM, Vadrevu SK, Manne S, Reese B, Patel J, Patel B, Silwal A, Lodhi N, Paterson Y, Srivastava SK, Karbowniczek M, Markiewski MM. Therapeutic Targeting of Vasculature in the Premetastatic and Metastatic Niches Reduces Lung Metastasis. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2020; 204:990-1000. [PMID: 31900334 PMCID: PMC7012400 DOI: 10.4049/jimmunol.1901208] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 12/05/2019] [Indexed: 02/06/2023]
Abstract
In the metastasis-targeted organs, angiogenesis is essential for the progression of dormant micrometastases to rapidly growing and clinically overt lesions. However, we observed changes suggesting angiogenic switching in the mouse lungs prior to arrival of tumor cells (i.e., in the premetastatic niche) in the models of breast carcinoma. This angiogenic switching appears to be caused by myeloid-derived suppressor cells recruited to the premetastatic lungs through complement C5a receptor 1 signaling. These myeloid cells are known to secrete several proangiogenic factors in tumors, including IL-1β and matrix metalloproteinase-9, and we found upregulation of these genes in the premetastatic lungs. Blockade of C5a receptor 1 synergized with antiangiogenic Listeria monocytogenes-based vaccines to decrease the lung metastatic burden by reducing vascular density and improving antitumor immunity in the lungs. This was mediated even when growth of primary breast tumors was not affected by these treatments. This work provides initial evidence that angiogenesis contributes to the premetastatic niche in rapidly progressing cancers and that inhibiting this process through immunotherapy is beneficial for reducing or even preventing metastasis.
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MESH Headings
- Angiogenesis Inhibitors/pharmacology
- Angiogenesis Inhibitors/therapeutic use
- Animals
- Antineoplastic Agents, Immunological/pharmacology
- Antineoplastic Agents, Immunological/therapeutic use
- Cancer Vaccines/administration & dosage
- Cell Line, Tumor
- Combined Modality Therapy/methods
- Complement C5a/immunology
- Complement C5a/metabolism
- Female
- Humans
- Immunotherapy/methods
- Listeria monocytogenes/immunology
- Lung/blood supply
- Lung/immunology
- Lung/pathology
- Lung Neoplasms/blood supply
- Lung Neoplasms/immunology
- Lung Neoplasms/secondary
- Lung Neoplasms/therapy
- Mammary Neoplasms, Experimental/immunology
- Mammary Neoplasms, Experimental/pathology
- Mammary Neoplasms, Experimental/therapy
- Matrix Metalloproteinase 9/metabolism
- Mice
- Mice, Knockout
- Myeloid-Derived Suppressor Cells/immunology
- Myeloid-Derived Suppressor Cells/metabolism
- Neoplasm Metastasis/immunology
- Neoplasm Metastasis/therapy
- Neovascularization, Pathologic/immunology
- Neovascularization, Pathologic/therapy
- Receptor, Anaphylatoxin C5a/antagonists & inhibitors
- Receptor, Anaphylatoxin C5a/genetics
- Receptor, Anaphylatoxin C5a/metabolism
- Tumor Microenvironment/immunology
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Affiliation(s)
- Shanawaz M Ghouse
- Department of Immunotherapeutics and Biotechnology, School of Pharmacy, Texas Tech University Health Sciences Center, Abilene, TX 79601
| | - Surya K Vadrevu
- Department of Immunotherapeutics and Biotechnology, School of Pharmacy, Texas Tech University Health Sciences Center, Abilene, TX 79601
| | - Sasikanth Manne
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104; and
| | - Britney Reese
- Department of Immunotherapeutics and Biotechnology, School of Pharmacy, Texas Tech University Health Sciences Center, Abilene, TX 79601
| | - Jalpa Patel
- Department of Immunotherapeutics and Biotechnology, School of Pharmacy, Texas Tech University Health Sciences Center, Abilene, TX 79601
| | - Bhaumik Patel
- Department of Immunotherapeutics and Biotechnology, School of Pharmacy, Texas Tech University Health Sciences Center, Abilene, TX 79601
| | - Ashok Silwal
- Department of Immunotherapeutics and Biotechnology, School of Pharmacy, Texas Tech University Health Sciences Center, Abilene, TX 79601
| | - Niraj Lodhi
- Department of Immunotherapeutics and Biotechnology, School of Pharmacy, Texas Tech University Health Sciences Center, Abilene, TX 79601
| | - Yvonne Paterson
- Department of Microbiology, Perlman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Sanjay K Srivastava
- Department of Immunotherapeutics and Biotechnology, School of Pharmacy, Texas Tech University Health Sciences Center, Abilene, TX 79601
| | - Magdalena Karbowniczek
- Department of Immunotherapeutics and Biotechnology, School of Pharmacy, Texas Tech University Health Sciences Center, Abilene, TX 79601
| | - Maciej M Markiewski
- Department of Immunotherapeutics and Biotechnology, School of Pharmacy, Texas Tech University Health Sciences Center, Abilene, TX 79601;
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12
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Pieterse Z, Sinha D, Kaur P. Pericytes in Metastasis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1147:125-135. [PMID: 31147875 DOI: 10.1007/978-3-030-16908-4_5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Pericytes have long been known to contribute indirectly to tumour growth by regulating angiogenesis. Thus, remodelling tumour blood vessels to maintain blood supply is critical for continued tumour growth. A role for pericytes in restricting leakage of tumour cells through blood vessels has also become evident given that adequate pericyte coverage of these blood vessels is critical for maintaining vascular permeability. Interestingly, the relocation of pericytes from blood vessels to the tumour microenvironment results in the emergence of different properties in these cells that actively promote tumour growth and metastasis-functions not associated with their well-studied role in vascular stability and permeability. These form the focus of this review.
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Affiliation(s)
- Zalitha Pieterse
- Curtin Health Innovation Research Institute, Curtin University, Perth, WA, Australia
| | - Devbarna Sinha
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Pritinder Kaur
- Curtin Health Innovation Research Institute, Curtin University, Perth, WA, Australia.
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13
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D'Orazio SEF. Innate and Adaptive Immune Responses during Listeria monocytogenes Infection. Microbiol Spectr 2019; 7:10.1128/microbiolspec.gpp3-0065-2019. [PMID: 31124430 PMCID: PMC11086964 DOI: 10.1128/microbiolspec.gpp3-0065-2019] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Indexed: 12/15/2022] Open
Abstract
It could be argued that we understand the immune response to infection with Listeria monocytogenes better than the immunity elicited by any other bacteria. L. monocytogenes are Gram-positive bacteria that are genetically tractable and easy to cultivate in vitro, and the mouse model of intravenous (i.v.) inoculation is highly reproducible. For these reasons, immunologists frequently use the mouse model of systemic listeriosis to dissect the mechanisms used by mammalian hosts to recognize and respond to infection. This article provides an overview of what we have learned over the past few decades and is divided into three sections: "Innate Immunity" describes how the host initially detects the presence of L. monocytogenes and characterizes the soluble and cellular responses that occur during the first few days postinfection; "Adaptive Immunity" discusses the exquisitely specific T cell response that mediates complete clearance of infection and immunological memory; "Use of Attenuated Listeria as a Vaccine Vector" highlights the ways that investigators have exploited our extensive knowledge of anti-Listeria immunity to develop cancer therapeutics.
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Affiliation(s)
- Sarah E F D'Orazio
- University of Kentucky, Microbiology, Immunology & Molecular Genetics, Lexington, KY 40536-0298
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14
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Maccalli C, Rasul KI, Elawad M, Ferrone S. The role of cancer stem cells in the modulation of anti-tumor immune responses. Semin Cancer Biol 2018; 53:189-200. [DOI: 10.1016/j.semcancer.2018.09.006] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 09/12/2018] [Accepted: 09/17/2018] [Indexed: 02/07/2023]
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15
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Flickinger JC, Rodeck U, Snook AE. Listeria monocytogenes as a Vector for Cancer Immunotherapy: Current Understanding and Progress. Vaccines (Basel) 2018; 6:E48. [PMID: 30044426 PMCID: PMC6160973 DOI: 10.3390/vaccines6030048] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 07/21/2018] [Accepted: 07/23/2018] [Indexed: 01/10/2023] Open
Abstract
Listeria monocytogenes, a Gram-positive facultative anaerobic bacterium, is becoming a popular vector for cancer immunotherapy. Indeed, multiple vaccines have been developed utilizing modified Listeria as a tool for generating immune responses against a variety of cancers. Moreover, over a dozen clinical trials testing Listeria cancer vaccines are currently underway, which will help to understand the utility of Listeria vaccines in cancer immunotherapy. This review aims to summarize current views on how Listeria-based vaccines induce potent antitumor immunity and the current state of Listeria-based cancer vaccines in clinical trials.
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Affiliation(s)
- John C Flickinger
- Department of Pharmacology and Experimental Therapeutics, Thomas Jefferson University, 1020 Locust Street, Philadelphia, PA 19107, USA.
| | - Ulrich Rodeck
- Department of Dermatology, Thomas Jefferson University, 1020 Locust Street, Philadelphia, PA 19107, USA.
| | - Adam E Snook
- Department of Pharmacology and Experimental Therapeutics, Thomas Jefferson University, 1020 Locust Street, Philadelphia, PA 19107, USA.
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16
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Mushtaq MU, Papadas A, Pagenkopf A, Flietner E, Morrow Z, Chaudhary SG, Asimakopoulos F. Tumor matrix remodeling and novel immunotherapies: the promise of matrix-derived immune biomarkers. J Immunother Cancer 2018; 6:65. [PMID: 29970158 PMCID: PMC6029413 DOI: 10.1186/s40425-018-0376-0] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 06/15/2018] [Indexed: 02/08/2023] Open
Abstract
Recent advances in our understanding of the dynamics of cellular cross-talk have highlighted the significance of host-versus-tumor effect that can be harnessed with immune therapies. Tumors exploit immune checkpoints to evade adaptive immune responses. Cancer immunotherapy has witnessed a revolution in the past decade with the development of immune checkpoint inhibitors (ICIs), monoclonal antibodies against cytotoxic T lymphocyte antigen 4 (CTLA-4) and programmed cell death protein 1 (PD-1) or their ligands, such as PD1 ligand 1 (PD-L1). ICIs have been reported to have activity against a broad range of tumor types, in both solid organ and hematologic malignancy contexts. However, less than one-third of the patients achieve a durable and meaningful treatment response. Expression of immune checkpoint ligands (e.g., PD-L1), mutational burden and tumor-infiltrating lymphocytes are currently used as biomarkers for predicting response to ICIs. However, they do not reliably predict which patients will benefit from these therapies. There is dire need to discover novel biomarkers to predict treatment efficacy and to identify areas for development of combination strategies to improve response rates. Emerging evidence suggests key roles of tumor extracellular matrix (ECM) components and their proteolytic remodeling products in regulating each step of the cancer-immunity cycle. Here we review tumor matrix dynamics and matrix remodeling in context of anti-tumor immune responses and immunotherapy and propose the exploration of matrix-based biomarkers to identify candidates for immune therapy.
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Affiliation(s)
- Muhammad Umair Mushtaq
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.,University of Wisconsin Carbone Cancer Center, 1111 Highland Avenue, WIMR 4031, Madison, WI, 53705, USA
| | - Athanasios Papadas
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.,University of Wisconsin Carbone Cancer Center, 1111 Highland Avenue, WIMR 4031, Madison, WI, 53705, USA
| | - Adam Pagenkopf
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.,University of Wisconsin Carbone Cancer Center, 1111 Highland Avenue, WIMR 4031, Madison, WI, 53705, USA
| | - Evan Flietner
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.,University of Wisconsin Carbone Cancer Center, 1111 Highland Avenue, WIMR 4031, Madison, WI, 53705, USA
| | - Zachary Morrow
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.,University of Wisconsin Carbone Cancer Center, 1111 Highland Avenue, WIMR 4031, Madison, WI, 53705, USA
| | - Sibgha Gull Chaudhary
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.,University of Wisconsin Carbone Cancer Center, 1111 Highland Avenue, WIMR 4031, Madison, WI, 53705, USA
| | - Fotis Asimakopoulos
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA. .,University of Wisconsin Carbone Cancer Center, 1111 Highland Avenue, WIMR 4031, Madison, WI, 53705, USA.
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17
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Pilla L, Ferrone S, Maccalli C. Methods for improving the immunogenicity and efficacy of cancer vaccines. Expert Opin Biol Ther 2018; 18:765-784. [PMID: 29874943 DOI: 10.1080/14712598.2018.1485649] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
INTRODUCTION Cancer vaccines represent one of the oldest immunotherapy strategies. A variety of tumor-associated antigens have been exploited to investigate their immunogenicity as well as multiple strategies for vaccine administration. These efforts have led to the development of several clinical trials in tumors with different histological origins to test the clinical efficacy of cancer vaccines. However, suboptimal clinical results have been reported mainly due to the lack of optimized strategies to induce strong and sustained systemic tumor antigen-specific immune responses. AREAS COVERED We provide an overview of different types of cancer vaccines that have been developed and used in the context of clinical studies. Moreover, we review different preclinical and clinical strategies pursued to enhance the immunogenicity, stability, and targeting at tumor site of cancer vaccines. EXPERT OPINION Additional and appropriate preclinical studies are warranted to optimize the immunogenicity and delivery of cancer vaccines. The appropriate choice of target antigens is challenging; however, the exploitation of neoantigens generated from somatic mutations of tumor cells represents a promising approach to target highly immunogenic tumor-specific antigens. Remarkably, the investigation of the combination of cancer vaccines with immunomodulating agents able to skew the tumor microenvironment from immunosuppressive to immunostimulating will dramatically improve their clinical efficacy.
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Affiliation(s)
- Lorenzo Pilla
- a Medical Oncology Unit , San Gerardo Hospital , Monza , Italy
| | - Soldano Ferrone
- b Department of Surgery , Massachusetts General Hospital, Harvard Medical School , Boston , MA , USA
| | - Cristina Maccalli
- c Clinical Research Center, Division of Translational Medicine , Sidra Medicine , Doha , Qatar
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18
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Seo N, Shirakura Y, Tahara Y, Momose F, Harada N, Ikeda H, Akiyoshi K, Shiku H. Activated CD8 + T cell extracellular vesicles prevent tumour progression by targeting of lesional mesenchymal cells. Nat Commun 2018; 9:435. [PMID: 29382847 PMCID: PMC5789986 DOI: 10.1038/s41467-018-02865-1] [Citation(s) in RCA: 130] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 01/05/2018] [Indexed: 11/09/2022] Open
Abstract
Fibroblastic tumour stroma comprising mesenchymal stem cells (MSCs) and cancer-associated fibroblasts (CAFs) promotes the invasive and metastatic properties of tumour cells. Here we show that activated CD8+ T cell-derived extracellular vesicles (EVs) interrupt fibroblastic stroma-mediated tumour progression. Activated CD8+ T cells from healthy mice transiently release cytotoxic EVs causing marked attenuation of tumour invasion and metastasis by apoptotic depletion of mesenchymal tumour stromal cells. Infiltration of EV-producing CD8+ T cells is observed in neovascular areas with high mesenchymal cell density, and tumour MSC depletion is associated with preferential engulfment of CD8+ T cell EVs in this setting. Thus, CD8+ T cells have the capacity to protect tumour progression by EV-mediated depletion of mesenchymal tumour stromal cells in addition to their conventional direct cytotoxicity against tumour cells. Immune cells have an important role in tumour progression. Here, the authors show that extracellular vesicles from activated CD8+ T cells attenuate tumour progression by depletion of mesenchymal tumour stromal cells.
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Affiliation(s)
- Naohiro Seo
- Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Edobashi, Tsu, Mie, 514-8507, Japan. .,ERATO Bio-Nanotransporter Project, Japan Science and Technology Agency (JST), Kyoto, 615-8530, Japan.
| | - Yoshitaka Shirakura
- Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Edobashi, Tsu, Mie, 514-8507, Japan
| | - Yoshiro Tahara
- ERATO Bio-Nanotransporter Project, Japan Science and Technology Agency (JST), Kyoto, 615-8530, Japan.,Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Moto-oka, Fukuoka, 819-0395, Japan
| | - Fumiyasu Momose
- Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Edobashi, Tsu, Mie, 514-8507, Japan.,ERATO Bio-Nanotransporter Project, Japan Science and Technology Agency (JST), Kyoto, 615-8530, Japan
| | - Naozumi Harada
- Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Edobashi, Tsu, Mie, 514-8507, Japan.,ERATO Bio-Nanotransporter Project, Japan Science and Technology Agency (JST), Kyoto, 615-8530, Japan
| | - Hiroaki Ikeda
- Department of Oncology, Nagasaki University Graduate School of Biomedical Sciences, Sakamoto, Nagasaki, 852-8523, Japan
| | - Kazunari Akiyoshi
- ERATO Bio-Nanotransporter Project, Japan Science and Technology Agency (JST), Kyoto, 615-8530, Japan.,Department of Polymer Chemistry, Graduate School of Engineering, Katsura Int'tech Center, Kyoto University, Nishikyo-ku, Kyoto, 615-8530, Japan
| | - Hiroshi Shiku
- Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Edobashi, Tsu, Mie, 514-8507, Japan. .,ERATO Bio-Nanotransporter Project, Japan Science and Technology Agency (JST), Kyoto, 615-8530, Japan.
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19
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Abstract
Studies of pericytes have been retarded by the lack of appropriate markers for identification of these perivascular mural cells. Use of antibodies against the NG2 proteoglycan as a pericyte marker has greatly facilitated recent studies of pericytes, emphasizing the intimate spatial relationship between pericytes and endothelial cells, allowing more accurate quantification of pericyte/endothelial cell ratios in different vascular beds, and revealing the participation of pericytes throughout all stages of blood vessel formation. The functional importance of NG2 in pericyte biology has been established via NG2 knockdown (in vitro) and knockout (in vivo) strategies that reveal significant deficits in blood vessel formation when NG2 is absent from pericytes. NG2 influences pericyte proliferation and motility by acting as an auxiliary receptor that enhances signaling through integrins and receptor tyrosine kinase growth factor receptors. By acting in a trans orientation, NG2 also activates integrin signaling in closely apposed endothelial cells, leading to enhanced maturation and formation of endothelial cell junctions. NG2 null mice exhibit reduced growth of both mammary and brain tumors that can be traced to deficits in tumor vascularization. Use of Cre-Lox technology to produce pericyte-specific NG2 null mice has revealed specific deficits in tumor vessels that include decreased pericyte ensheathment of endothelial cells, diminished assembly of the vascular basement membrane, reduced vessel patency, and increased vessel leakiness. Interestingly, myeloid-specific NG2 null mice exhibit even larger deficits in tumor vascularization, leading to correspondingly slower tumor growth. Myeloid-specific NG2 null mice are deficient in their ability to recruit macrophages to tumors and other sites of inflammation. This absence of macrophages deprives pericytes of a signal that is crucial for their ability to interact with endothelial cells. The interplay between pericytes, endothelial cells, and macrophages promises to be an extremely fertile area of future study.
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Affiliation(s)
- William B Stallcup
- Tumor Microenvironment and Cancer Immunology Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA.
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20
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Bolhassani A, Naderi N, Soleymani S. Prospects and progress of Listeria-based cancer vaccines. Expert Opin Biol Ther 2017; 17:1389-1400. [PMID: 28823183 DOI: 10.1080/14712598.2017.1366446] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
INTRODUCTION The development of an effective therapeutic vaccine to induce cancer-specific immunity remains problematic. Recently, a species of intracellular pathogen known as Listeria monocytogenes (Lm) has been used to transfer DNA, RNA and proteins into tumour cells as well as elicit an immune response against tumour-specific antigens. Areas covered: Herein, the authors provide the mechanisms of different Listeria monocytogenes strains, which are potential therapeutic cancer vaccine vectors, in addition to their preclinical and clinical development. They also speculate on the future of Lm-based tumour immunotherapies. The article is based on literature published on PubMed and data reported in clinical trials. Expert opinion: Attenuated strains of Listeria monocytogenes have safely been applied as therapeutic bacterial vectors for the delivery of cancer vaccines. These vectors stimulate MHCI and MHCII pathways as well as the proliferation of antigen-specific T lymphocytes. Several preclinical studies have demonstrated the potency of Lm in intracellular gene and protein delivery in vitro and in vivo. They have also indicated safety and efficiacy in clinical trials. Readers should be aware that the ability of attenuated Lm strains to induce potent immune responses depends on the type of deleted or inactivated Lm virulent gene or genes.
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Affiliation(s)
- Azam Bolhassani
- a Department of Hepatitis and AIDS , Pasteur Institute of Iran , Tehran , Iran
| | - Niloofar Naderi
- a Department of Hepatitis and AIDS , Pasteur Institute of Iran , Tehran , Iran
| | - Sepehr Soleymani
- a Department of Hepatitis and AIDS , Pasteur Institute of Iran , Tehran , Iran
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21
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Navarro R, Compte M, Álvarez-Vallina L, Sanz L. Immune Regulation by Pericytes: Modulating Innate and Adaptive Immunity. Front Immunol 2016; 7:480. [PMID: 27867386 PMCID: PMC5095456 DOI: 10.3389/fimmu.2016.00480] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 10/20/2016] [Indexed: 01/22/2023] Open
Abstract
Pericytes (PC) are mural cells that surround endothelial cells in small blood vessels. PC have traditionally been credited with structural functions, being essential for vessel maturation and stabilization. However, an accumulating body of evidence suggests that PC also display immune properties. They can respond to a series of pro-inflammatory stimuli and are able to sense different types of danger due to their expression of functional pattern-recognition receptors, contributing to the onset of innate immune responses. In this context, PC not only secrete a variety of chemokines but also overexpress adhesion molecules such as ICAM-1 and VCAM-1 involved in the control of immune cell trafficking across vessel walls. In addition to their role in innate immunity, PC are involved in adaptive immunity. It has been reported that interaction with PC anergizes T cells, which is attributed, at least in part, to the expression of PD-L1. As components of the tumor microenvironment, PC can also modulate the antitumor immune response. However, their role is complex, and further studies will be required to better understand the crosstalk of PC with immune cells in order to consider them as potential therapeutic targets. In any case, PC will be looked at with new eyes by immunologists from now on.
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Affiliation(s)
- Rocío Navarro
- Molecular Immunology Unit, Hospital Universitario Puerta de Hierro Majadahonda , Madrid , Spain
| | - Marta Compte
- Molecular Immunology Unit, Hospital Universitario Puerta de Hierro Majadahonda , Madrid , Spain
| | - Luis Álvarez-Vallina
- Molecular Immunology Unit, Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain; Immunotherapy and Cell Engineering Laboratory, Department of Engineering, Aarhus University, Aarhus, Denmark
| | - Laura Sanz
- Molecular Immunology Unit, Hospital Universitario Puerta de Hierro Majadahonda , Madrid , Spain
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22
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Stallcup WB, You WK, Kucharova K, Cejudo-Martin P, Yotsumoto F. NG2 Proteoglycan-Dependent Contributions of Pericytes and Macrophages to Brain Tumor Vascularization and Progression. Microcirculation 2016; 23:122-33. [PMID: 26465118 DOI: 10.1111/micc.12251] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 10/09/2015] [Indexed: 12/22/2022]
Abstract
The NG2 proteoglycan promotes tumor growth as a component of both tumor and stromal cells. Using intracranial, NG2-negative B16F10 melanomas, we have investigated the importance of PC and Mac NG2 in brain tumor progression. Reduced melanoma growth in Mac-NG2ko and PC-NG2ko mice demonstrates the importance of NG2 in both stromal compartments. In each genotype, the loss of PC-endothelial cell interaction diminishes the formation of endothelial junctions and assembly of the basal lamina. Tumor vessels in Mac-NG2ko mice have smaller diameters, reduced patency, and increased leakiness compared to PC-NG2ko mice, thus decreasing tumor blood supply and increasing hypoxia. While the reduced PC interaction with endothelial cells in PC-NG2ko mice results from the loss of PC activation of β1 integrin signaling in endothelial cells, reduced PC-endothelial cell interaction in Mac-NG2ko mice results from 90% reduced Mac recruitment. The absence of Mac-derived signals in Mac-NG2ko mice causes the loss of PC association with endothelial cells. Reduced Mac recruitment may be due to diminished activation of integrins in the absence of NG2, causing decreased Mac interaction with endothelial adhesion molecules that are needed for extravasation. These results reflect the complex interplay that occurs between Mac, PC, and endothelial cells during tumor vascularization.
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Affiliation(s)
- William B Stallcup
- Sanford Burnham Prebys Medical Discovery Institute, Cancer Center, La Jolla, California, USA
| | - Weon-Kyoo You
- Sanford Burnham Prebys Medical Discovery Institute, Cancer Center, La Jolla, California, USA.,Biologics Business, Research and Development Center, Hanwha Chemical, Daejon, South Korea
| | - Karolina Kucharova
- Sanford Burnham Prebys Medical Discovery Institute, Cancer Center, La Jolla, California, USA
| | - Pilar Cejudo-Martin
- Sanford Burnham Prebys Medical Discovery Institute, Cancer Center, La Jolla, California, USA
| | - Fusanori Yotsumoto
- Sanford Burnham Prebys Medical Discovery Institute, Cancer Center, La Jolla, California, USA.,Department of Biochemistry, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
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23
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Sinha D, Chong L, George J, Schlüter H, Mönchgesang S, Mills S, Li J, Parish C, Bowtell D, Kaur P. Pericytes Promote Malignant Ovarian Cancer Progression in Mice and Predict Poor Prognosis in Serous Ovarian Cancer Patients. Clin Cancer Res 2015; 22:1813-24. [PMID: 26589433 DOI: 10.1158/1078-0432.ccr-15-1931] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 10/30/2015] [Indexed: 11/16/2022]
Abstract
PURPOSE The aim of this study was to investigate the role of pericytes in regulating malignant ovarian cancer progression. EXPERIMENTAL DESIGN The pericyte mRNA signature was used to interrogate ovarian cancer patient datasets to determine its prognostic value for recurrence and mortality. Xenograft models of ovarian cancer were used to determine if co-injection with pericytes affected tumor growth rate and metastasis, whereas co-culture models were utilized to investigate the direct effect of pericytes on ovarian cancer cells. Pericyte markers were used to stain patient tissue samples to ascertain their use in prognosis. RESULTS Interrogation of two serous ovarian cancer patient datasets [the Australian Ovarian Cancer Study, n= 215; and the NCI TCGA (The Cancer Genome Atlas), n= 408] showed that a high pericyte score is highly predictive for poor patient prognosis. Co-injection of ovarian cancer (OVCAR-5 & -8) cells with pericytes in a xenograft model resulted in accelerated ovarian tumor growth, and aggressive metastases, without altering tumor vasculature. Pericyte co-culture in vitro promoted ovarian cancer cell proliferation and invasion. High αSMA protein levels in patient tissue microarrays were correlated with more aggressive disease and earlier recurrence. CONCLUSIONS High pericyte score provides the best means to date of identifying patients with ovarian cancer at high risk of rapid relapse and mortality (mean progression-free survival time < 9 months). The stroma contains rare yet extremely potent locally resident mesenchymal stem cells-a subset of "cancer-associated fibroblasts" that promote aggressive tumor growth and metastatic dissemination, underlying the prognostic capacity of a high pericyte score to strongly predict earlier relapse and mortality.
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Affiliation(s)
- Devbarna Sinha
- Epithelial Stem Cell Biology Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia. Bioinformatics Core Facility, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Lynn Chong
- Epithelial Stem Cell Biology Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Joshy George
- Cancer Genetics & Genomics Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Holger Schlüter
- Epithelial Stem Cell Biology Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia. Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria, Australia
| | - Susann Mönchgesang
- Epithelial Stem Cell Biology Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Stuart Mills
- Epithelial Stem Cell Biology Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Jason Li
- Bioinformatics Core Facility, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Christopher Parish
- The John Curtin School of Medical Research, Australian National University, Canberra, Australia
| | - David Bowtell
- Cancer Genetics & Genomics Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia. Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria, Australia. Department of Pathology, University of Melbourne, Parkville, Victoria, Australia. Department of Biochemistry and Molecular Biology, University of Melbourne, Parkville, Victoria, Australia
| | - Pritinder Kaur
- Epithelial Stem Cell Biology Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia. Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria, Australia. Department of Anatomy and Neuroscience, University of Melbourne, Parkville, Victoria, Australia.
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24
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Lin IYC, Van TTH, Smooker PM. Live-Attenuated Bacterial Vectors: Tools for Vaccine and Therapeutic Agent Delivery. Vaccines (Basel) 2015; 3:940-72. [PMID: 26569321 PMCID: PMC4693226 DOI: 10.3390/vaccines3040940] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 10/30/2015] [Accepted: 10/30/2015] [Indexed: 12/14/2022] Open
Abstract
Genetically attenuated microorganisms, including pathogenic and commensal bacteria, can be engineered to carry and deliver heterologous antigens to elicit host immunity against both the vector as well as the pathogen from which the donor gene is derived. These live attenuated bacterial vectors have been given much attention due to their capacity to induce a broad range of immune responses including localized mucosal, as well as systemic humoral and/or cell-mediated immunity. In addition, the unique tumor-homing characteristics of these bacterial vectors has also been exploited for alternative anti-tumor vaccines and therapies. In such approach, tumor-associated antigen, immunostimulatory molecules, anti-tumor drugs, or nucleotides (DNA or RNA) are delivered. Different potential vectors are appropriate for specific applications, depending on their pathogenic routes. In this review, we survey and summarize the main features of the different types of live bacterial vectors and discussed the clinical applications in the field of vaccinology. In addition, different approaches for using live attenuated bacterial vectors for anti-cancer therapy is discussed, and some promising pre-clinical and clinical studies in this field are outlined.
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Affiliation(s)
- Ivan Y C Lin
- School of Applied Sciences, RMIT University, Plenty Road, Bundoora VIC-3083, Australia.
| | - Thi Thu Hao Van
- School of Applied Sciences, RMIT University, Plenty Road, Bundoora VIC-3083, Australia.
| | - Peter M Smooker
- School of Applied Sciences, RMIT University, Plenty Road, Bundoora VIC-3083, Australia.
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25
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Turley SJ, Cremasco V, Astarita JL. Immunological hallmarks of stromal cells in the tumour microenvironment. Nat Rev Immunol 2015; 15:669-82. [PMID: 26471778 DOI: 10.1038/nri3902] [Citation(s) in RCA: 731] [Impact Index Per Article: 81.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A dynamic and mutualistic interaction between tumour cells and the surrounding stroma promotes the initiation, progression, metastasis and chemoresistance of solid tumours. Far less understood is the relationship between the stroma and tumour-infiltrating leukocytes; however, emerging evidence suggests that the stromal compartment can shape antitumour immunity and responsiveness to immunotherapy. Thus, there is growing interest in elucidating the immunomodulatory roles of the stroma that evolve within the tumour microenvironment. In this Review, we discuss the evidence that stromal determinants interact with leukocytes and influence antitumour immunity, with emphasis on the immunological attributes of stromal cells that may foster their protumorigenic function.
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Affiliation(s)
- Shannon J Turley
- Department of Cancer Immunology, Genentech, 1 DNA Way, South San Francisco, California 94080, USA
| | - Viviana Cremasco
- Department of Cancer Immunology and AIDS, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, Massachusetts 02215, USA.,Exploratory Immuno-Oncology, Novartis Institutes for BioMedical Research, 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA
| | - Jillian L Astarita
- Department of Cancer Immunology, Genentech, 1 DNA Way, South San Francisco, California 94080, USA
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26
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Wang Y, Geldres C, Ferrone S, Dotti G. Chondroitin sulfate proteoglycan 4 as a target for chimeric antigen receptor-based T-cell immunotherapy of solid tumors. Expert Opin Ther Targets 2015; 19:1339-50. [DOI: 10.1517/14728222.2015.1068759] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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27
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Recombinant DNA technology for melanoma immunotherapy: anti-Id DNA vaccines targeting high molecular weight melanoma-associated antigen. Mol Biotechnol 2015; 56:1032-9. [PMID: 25027754 DOI: 10.1007/s12033-014-9782-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Anti-idiotypic MK2-23 monoclonal antibody (anti-Id MK2-23 mAb), which mimics the high molecular weight melanoma-associated antigen (HMW-MAA), has been used to implement active immunotherapy against melanoma. However, due to safety and standardization issues, this approach never entered extensive clinical trials. In the present study, we investigated the usage of DNA vaccines as an alternative to MK2-23 mAb immunization. MK2-23 DNA plasmids coding for single chain (scFv) MK2-23 antibody were constructed via the insertion of variable heavy (V H) and light (V L) chains of MK2-23 into the pVAC-1mcs plasmids. Two alternative MK2-23 plasmids format V H/V L, and V L/V H were assembled. We demonstrate that both polypeptides expressed by scFv plasmids in vitro retained the ability to mimic HMW-MAA antigen, and to elicit specific anti-HMW-MAA humoral and cellular immunoresponses in immunized mice. Notably, MK2-23 scFv DNA vaccines impaired the onset and growth of transplantable B16 melanoma cells not engineered to express HMW-MAA. This pilot study suggests that optimized MK2-23 scFv DNA vaccines could potentially provide a safer and cost-effective alternative to anti-Id antibody immunization, for melanoma immunotherapy.
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Kennedy GT, Judy BF, Bhojnagarwala P, Moon EK, Fridlender ZG, Albelda SM, Singhal S. Surgical cytoreduction restores the antitumor efficacy of a Listeria monocytogenes vaccine in malignant pleural mesothelioma. Immunol Lett 2015; 166:28-35. [PMID: 25999306 DOI: 10.1016/j.imlet.2015.05.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2015] [Revised: 04/26/2015] [Accepted: 05/11/2015] [Indexed: 10/23/2022]
Abstract
Recent studies suggest that immunotherapy may offer a promising treatment strategy for early-stage malignant pleural mesothelioma (MPM), but advanced tumor burden may limit the efficacy of immunotherapy. Therefore, we hypothesized that surgical cytoreduction could restore the efficacy of vaccine-based immunotherapy for MPM. We developed a murine model of MPM through transduction of a mesothelioma cell line with mesothelin. We used this model to evaluate the efficacy of a Listeria monocytogenes vaccine expressing mesothelin. Tumor growth was significantly inhibited at four weeks in animals vaccinated two weeks prior to tumor cell inoculation as compared to those given an empty vector control (1371 ± 420 mm(3) versus 405 ± 139 mm(3); p < 0.01). Mice vaccinated one week prior to tumor challenge also displayed significant reduction in tumor volume (1227 ± 406 mm(3) versus 309 ± 173 mm(3); p < 0.01). The vaccine had no effect when administered concurrently with tumor challenge, or after tumors were established. Flow cytometry showed reduced mesothelin expression in large tumors, as well as tumor-associated immunosuppression due to increased myeloid derived suppressor cells (MDSCs). These factors may have limited vaccine efficacy for advanced disease. Surgical cytoreduction of established tumors restored the antitumor potency of the therapeutic vaccine, with significantly reduced tumor burden at post-operative day 18 (397 ± 103 mm(3) versus 1047 ± 258 mm(3); p < 0.01). We found that surgery reduced MDSCs to levels comparable to those in tumor-naïve mice. This study demonstrates that cytoreduction surgery restores the efficacy of cancer vaccines for MPM by reducing tumor-related immunosuppression that impairs immunotherapy.
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Affiliation(s)
- Gregory T Kennedy
- Division of Thoracic Surgery, Department of Surgery, Hospital of the University of Pennsylvania, 6 White 3400 Spruce Street, Philadelphia, PA 19104, USA
| | - Brendan F Judy
- Division of Thoracic Surgery, Department of Surgery, Hospital of the University of Pennsylvania, 6 White 3400 Spruce Street, Philadelphia, PA 19104, USA
| | - Pratik Bhojnagarwala
- Division of Thoracic Surgery, Department of Surgery, Hospital of the University of Pennsylvania, 6 White 3400 Spruce Street, Philadelphia, PA 19104, USA
| | - Edmund K Moon
- Division of Pulmonary, Allergy and Critical Care, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA, USA
| | - Zvi G Fridlender
- Division of Pulmonary, Allergy and Critical Care, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA, USA
| | - Steven M Albelda
- Division of Pulmonary, Allergy and Critical Care, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA, USA
| | - Sunil Singhal
- Division of Thoracic Surgery, Department of Surgery, Hospital of the University of Pennsylvania, 6 White 3400 Spruce Street, Philadelphia, PA 19104, USA.
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Nicolosi PA, Dallatomasina A, Perris R. Theranostic impact of NG2/CSPG4 proteoglycan in cancer. Theranostics 2015; 5:530-44. [PMID: 25767619 PMCID: PMC4350014 DOI: 10.7150/thno.10824] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 12/03/2014] [Indexed: 12/27/2022] Open
Abstract
NG2/CSPG4 is an unusual cell-membrane integral proteoglycan widely recognized to be a prognostic factor, a valuable tool for ex vivo and non-invasive molecular diagnostics and, by virtue of its tight association with malignancy, a tantalizing therapeutic target in several tumour types. Although the biology behind its involvement in cancer progression needs to be better understood, implementation of NG2/CSPG4 in the routine clinical practice is attainable and has the potential to contribute to an improved individualized management of cancer patients. In this context, its polymorphic nature seems to be particularly valuable in the effort to standardize informative diagnostic procedures and consolidate forcible immunotherapeutic treatment strategies. We discuss here the underpinnings for this potential and highlight the benefits of taking advantage of the intra-tumour and inter-patient variability in the regulation of NG2/CSPG4 expression. We envision that NG2/CSPG4 may effectively be exploited in therapeutic interventions aimed at averting resistance to target therapy agents and at interfering with secondary lesion formation and/or tumour recurrence.
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Yotsumoto F, You WK, Cejudo-Martin P, Kucharova K, Sakimura K, Stallcup WB. NG2 proteoglycan-dependent recruitment of tumor macrophages promotes pericyte-endothelial cell interactions required for brain tumor vascularization. Oncoimmunology 2015; 4:e1001204. [PMID: 26137396 PMCID: PMC4485789 DOI: 10.1080/2162402x.2014.1001204] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2014] [Revised: 12/15/2014] [Accepted: 12/17/2014] [Indexed: 11/03/2022] Open
Abstract
Early stage growth of intracranial B16F10 tumors is reduced by 87% in myeloid-specific NG2 null (Mac-NG2ko) mice and by 77% in pericyte-specific NG2 null (PC-NG2ko) mice, demonstrating the importance of the NG2 proteoglycan in each of these stromal compartments. In both genotypes, loss of pericyte-endothelial cell interaction results in numerous structural defects in tumor blood vessels, including decreased formation of endothelial cell junctions and decreased assembly of the vascular basal lamina. All vascular deficits are larger in Mac-NG2ko mice than in PC-NG2ko mice, correlating with the greater decrease in pericyte-endothelial cell interaction in Mac-NG2ko animals. Accordingly, tumor vessels in Mac-NG2ko mice have a smaller diameter, lower degree of patency, and higher degree of leakiness than tumor vessels in PC-NG2ko mice, leading to less efficient tumor blood flow and to increased intratumoral hypoxia. While reduced pericyte interaction with endothelial cells in PC-NG2ko mice is caused by loss of NG2-dependent pericyte activation of β1 integrin signaling in endothelial cells, reduced pericyte-endothelial cell interaction in Mac-NG2ko mice is due to a 90% reduction in NG2-dependent macrophage recruitment to tumors. The absence of a macrophage-derived signal(s) in Mac-NG2ko mice results in the loss of pericyte ability to associate with endothelial cells, possibly due to reduced expression of N-cadherin by both pericytes and endothelial cells.
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Affiliation(s)
- Fusanori Yotsumoto
- Sanford-Burnham Medical Research Institute; Cancer Center ; La Jolla, CA USA ; Department of Biochemistry; Faculty of Medicine ; Fukuoka University , Fukuoka, Japan
| | - Weon-Kyoo You
- Sanford-Burnham Medical Research Institute; Cancer Center ; La Jolla, CA USA ; Biologics Business; Research and Development Center ; Hanwha Chemical ; Daejeon, South Korea
| | - Pilar Cejudo-Martin
- Sanford-Burnham Medical Research Institute; Cancer Center ; La Jolla, CA USA
| | - Karolina Kucharova
- Sanford-Burnham Medical Research Institute; Cancer Center ; La Jolla, CA USA
| | - Kenji Sakimura
- Department of Cellular Neurobiology; Brain Research Institute ; Niigata University , Niigata, Japan
| | - William B Stallcup
- Sanford-Burnham Medical Research Institute; Cancer Center ; La Jolla, CA USA
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Malas S, Harrasser M, Lacy KE, Karagiannis SN. Antibody therapies for melanoma: new and emerging opportunities to activate immunity (Review). Oncol Rep 2014; 32:875-86. [PMID: 24969320 PMCID: PMC4121424 DOI: 10.3892/or.2014.3275] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Accepted: 06/06/2014] [Indexed: 12/21/2022] Open
Abstract
The interface between malignant melanoma and patient immunity has long been recognised and efforts to treat this most lethal form of skin cancer by activating immune responses with cytokine, vaccine and also antibody immunotherapies have demonstrated promise in limited subsets of patients. In the present study, we discuss different antibody immunotherapy approaches evaluated in the context of melanoma, each designed to act on distinct targets and to employ different mechanisms to restrict tumour growth and spread. Monoclonal antibodies recognising melanoma-associated antigens such as CSPG4/MCSP and targeting elements of tumour-associated vasculature (VEGF) have constituted long-standing translational approaches aimed at reducing melanoma growth and metastasis. Recent insights into mechanisms of immune regulation and tumour-immune cell interactions have helped to identify checkpoint molecules on immune (CTLA4, PD-1) and tumour (PD-L1) cells as promising therapeutic targets. Checkpoint blockade with antibodies to activate immune responses and perhaps to counteract melanoma-associated immunomodulatory mechanisms led to the first clinical breakthrough in the form of an anti-CTLA4 monoclonal antibody. Novel modalities to target key mechanisms of immune suppression and to redirect potent effector cell subsets against tumours are expected to improve clinical outcomes and to provide previously unexplored avenues for therapeutic interventions.
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Affiliation(s)
- Sadek Malas
- St. John's Institute of Dermatology, Division of Genetics and Molecular Medicine and NIHR Biomedical Research Centre at Guy's and St. Thomas' Hospitals, King's College London, London SE1 9RT, UK
| | - Micaela Harrasser
- St. John's Institute of Dermatology, Division of Genetics and Molecular Medicine and NIHR Biomedical Research Centre at Guy's and St. Thomas' Hospitals, King's College London, London SE1 9RT, UK
| | - Katie E Lacy
- St. John's Institute of Dermatology, Division of Genetics and Molecular Medicine and NIHR Biomedical Research Centre at Guy's and St. Thomas' Hospitals, King's College London, London SE1 9RT, UK
| | - Sophia N Karagiannis
- St. John's Institute of Dermatology, Division of Genetics and Molecular Medicine and NIHR Biomedical Research Centre at Guy's and St. Thomas' Hospitals, King's College London, London SE1 9RT, UK
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Wood LM, Paterson Y. Attenuated Listeria monocytogenes: a powerful and versatile vector for the future of tumor immunotherapy. Front Cell Infect Microbiol 2014; 4:51. [PMID: 24860789 PMCID: PMC4026700 DOI: 10.3389/fcimb.2014.00051] [Citation(s) in RCA: 96] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Accepted: 04/04/2014] [Indexed: 12/17/2022] Open
Abstract
For over a century, inactivated or attenuated bacteria have been employed in the clinic as immunotherapies to treat cancer, starting with the Coley's vaccines in the 19th century and leading to the currently approved bacillus Calmette-Guérin vaccine for bladder cancer. While effective, the inflammation induced by these therapies is transient and not designed to induce long-lasting tumor-specific cytolytic T lymphocyte (CTL) responses that have proven so adept at eradicating tumors. Therefore, in order to maintain the benefits of bacteria-induced acute inflammation but gain long-lasting anti-tumor immunity, many groups have constructed recombinant bacteria expressing tumor-associated antigens (TAAs) for the purpose of activating tumor-specific CTLs. One bacterium has proven particularly adept at inducing powerful anti-tumor immunity, Listeria monocytogenes (Lm). Lm is a gram-positive bacterium that selectively infects antigen-presenting cells wherein it is able to efficiently deliver tumor antigens to both the MHC Class I and II antigen presentation pathways for activation of tumor-targeting CTL-mediated immunity. Lm is a versatile bacterial vector as evidenced by its ability to induce therapeutic immunity against a wide-array of TAAs and specifically infect and kill tumor cells directly. It is for these reasons, among others, that Lm-based immunotherapies have delivered impressive therapeutic efficacy in preclinical models of cancer for two decades and are now showing promise clinically. In this review, we will provide an overview of the history leading up to the development of current Lm-based immunotherapies, the advantages and mechanisms of Lm as a therapeutic vaccine vector, the preclinical experience with Lm-based immunotherapies targeting a number of malignancies, and the recent findings from clinical trials along with concluding remarks on the future of Lm-based tumor immunotherapies.
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Affiliation(s)
- Laurence M Wood
- Immunotherapeutics and Biotechnology, Texas Tech University Health Sciences Center Abilene, TX, USA
| | - Yvonne Paterson
- Microbiology, Perelman School of Medicine, University of Pennsylvania Philadelphia, PA, USA ; University of Pennsylvania School of Nursing Philadelphia, PA, USA
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Toussaint B, Chauchet X, Wang Y, Polack B, Le Gouëllec A. Live-attenuated bacteria as a cancer vaccine vector. Expert Rev Vaccines 2014; 12:1139-54. [PMID: 24124876 DOI: 10.1586/14760584.2013.836914] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
In the emerging field of active and specific cancer immunotherapy, strategies using live-attenuated bacterial vectors have matured in terms of academic and industrial development. Different bacterial species can be genetically engineered to deliver antigen to APCs with strong adjuvant effects due to their microbial origin. Proteic or DNA-encoding antigen delivery routes and natural bacterial tropisms might differ among species, permitting different applications. After many academic efforts to resolve safety and efficacy issues, some firms have recently engaged clinical trials with live Listeria or Salmonella spp. We describe here the main technological advances that allowed bacteria to become one of the most promising vectors in cancer immunotherapy.
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Affiliation(s)
- Bertrand Toussaint
- Laboratoire TIMC-IMAG/TheREx (UMR 5525 CNRS-UJF), UFR de médecine, Université Joseph Fourier Grenoble I, 38700 La Tronche Cedex, France
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Rothman J, Paterson Y. Live-attenuatedListeria-based immunotherapy. Expert Rev Vaccines 2014; 12:493-504. [DOI: 10.1586/erv.13.34] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Girolamo F, Dallatomasina A, Rizzi M, Errede M, Wälchli T, Mucignat MT, Frei K, Roncali L, Perris R, Virgintino D. Diversified expression of NG2/CSPG4 isoforms in glioblastoma and human foetal brain identifies pericyte subsets. PLoS One 2013; 8:e84883. [PMID: 24386429 PMCID: PMC3873429 DOI: 10.1371/journal.pone.0084883] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Accepted: 11/19/2013] [Indexed: 01/16/2023] Open
Abstract
NG2/CSPG4 is a complex surface-associated proteoglycan (PG) recognized to be a widely expressed membrane component of glioblastoma (WHO grade IV) cells and angiogenic pericytes. To determine the precise expression pattern of NG2/CSPG4 on glioblastoma cells and pericytes, we generated a panel of >60 mouse monoclonal antibodies (mAbs) directed against the ectodomain of human NG2/CSPG4, partially characterized the mAbs, and performed a high-resolution distributional mapping of the PG in human foetal, adult and glioblastoma-affected brains. The reactivity pattern initially observed on reference tumour cell lines indicated that the mAbs recognized 48 immunologically distinct NG2/CSPG4 isoforms, and a total of 14 mAbs was found to identify NG2/CSPG4 isoforms in foetal and neoplastic cerebral sections. These were consistently absent in the adult brain, but exhibited a complementary expression pattern in angiogenic vessels of both tumour and foetal tissues. Considering the extreme pleomorphism of tumour areas, and with the aim of subsequently analysing the distributional pattern of the NG2/CSPG4 isoforms on similar histological vessel typologies, a preliminary study was carried out with endothelial cell and pericyte markers, and with selected vascular basement membrane (VBM) components. On both tumour areas characterized by 'glomeruloid' and 'garland vessels', which showed a remarkably similar cellular and molecular organization, and on developing brain vessels, spatially separated, phenotypically diversified pericyte subsets with a polarized expression of key surface components, including NG2/CSPG4, were disclosed. Interestingly, the majority of the immunolocalized NG2/CSPG4 isoforms present in glioblastoma tissue were present in foetal brain, except for one isoform that seemed to be exclusive of tumour cells, being absent in foetal brain. The results highlight an unprecedented, complex pattern of NG2/CSPG4 isoform expression in foetal and neoplastic CNS, discriminating between phenotype-specific and neoplastic versus non-neoplastic variants of the PG, thus opening up vistas for more selective immunotherapeutic targeting of brain tumours.
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Affiliation(s)
- Francesco Girolamo
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari School of Medicine, Bari, Italy
| | - Alice Dallatomasina
- COMT – Centre for Molecular and Translational Oncology and Department of Biosciences, University of Parma, Parma, Italy
| | - Marco Rizzi
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari School of Medicine, Bari, Italy
| | - Mariella Errede
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari School of Medicine, Bari, Italy
| | - Thomas Wälchli
- Brain Research Institute, University of Zurich, Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH) Zurich, Zurich, Switzerland
- Department of Neurosurgery, University Hospital Zurich, Zurich, Switzerland
| | - Maria Teresa Mucignat
- S.O.C. for Experimental Oncology 2, The National Cancer Institute Aviano, CRO-IRCCS, Aviano, Italy
| | - Karl Frei
- Department of Neurosurgery, University Hospital Zurich, Zurich, Switzerland
| | - Luisa Roncali
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari School of Medicine, Bari, Italy
| | - Roberto Perris
- COMT – Centre for Molecular and Translational Oncology and Department of Biosciences, University of Parma, Parma, Italy
- S.O.C. for Experimental Oncology 2, The National Cancer Institute Aviano, CRO-IRCCS, Aviano, Italy
| | - Daniela Virgintino
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari School of Medicine, Bari, Italy
- * E-mail:
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Sun R, Liu Y. Listeriolysin O as a strong immunogenic molecule for the development of new anti-tumor vaccines. Hum Vaccin Immunother 2013; 9:1058-68. [PMID: 23399758 PMCID: PMC3899140 DOI: 10.4161/hv.23871] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Revised: 01/23/2013] [Accepted: 02/03/2013] [Indexed: 11/19/2022] Open
Abstract
The pore-forming toxin listeriolysin O (LLO), which is produced by Listeria monocytogenes, mediates bacterial phagosomal escape and facilitates bacterial multiplication during infection. This toxin has recently gained attention because of its confirmed role in the controlled and specific modulation of the immune response. Currently, cancer immunotherapies are focused on conquering the immune tolerance induced by poorly immunogenic tumor antigens and eliciting strong, lasting immunological memory. An effective way to achieve these goals is the co-administration of potent immunomodulatory adjuvant components with vaccine vectors. LLO, a toxin that belongs to the family of cholesterol-dependent cytolysins (CDCs), exhibits potent cell type-non-specific toxicity and is a source of dominant CD4(+) and CD8(+) T cell epitopes. According to recent research, in addition to its effective cytotoxicity as a cancer immunotherapeutic drug, the non-specific adjuvant property of LLO makes it promising for the development of efficacious anti-tumor vaccines.
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Affiliation(s)
- Rui Sun
- Department of Pathology; Institute of Basic Medical Sciences; Chinese Academy of Medical Sciences; School of Basic Medicine; Peking Union Medical College; Beijing, P.R. China
| | - Yuqin Liu
- Department of Pathology; Institute of Basic Medical Sciences; Chinese Academy of Medical Sciences; School of Basic Medicine; Peking Union Medical College; Beijing, P.R. China
- Cell Resource Center; Institute of Basic Medical Sciences; Chinese Academy of Medical Sciences; School of Basic Medicine; Peking Union Medical College; Beijing, P.R. China
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Eisenberg G, Uzana R, Pato A, Frankenburg S, Merims S, Yefenof E, Ferrone S, Peretz T, Machlenkin A, Lotem M. Imprinting of lymphocytes with melanoma antigens acquired by trogocytosis facilitates identification of tumor-reactive T cells. THE JOURNAL OF IMMUNOLOGY 2013; 190:5856-65. [PMID: 23626012 DOI: 10.4049/jimmunol.1202879] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Trogocytosis is a contact-dependent intercellular transfer of membrane fragments and associated molecules from APCs to effector lymphocytes. We previously demonstrated that trogocytosis also occurs between tumor target and cognate melanoma Ag-specific cytotoxic T cells (CTL). In this study, we show that, following trogocytosis, immune effector cells acquire molecular components of the tumor, including surface Ags, which are detectable by specific mAbs. We demonstrate that CD8(+) and CD4(+) T cells from melanoma patients' PBMC and tumor-infiltrating lymphocytes (TIL) capture melanoma Ags, enabling identification of trogocytosing lymphocytes by staining with Ag-specific Abs. This finding circumvents the necessity of tumor prelabeling, which in the past was mandatory to detect membrane-capturing T cells. Through the detection of melanoma Ags on TIL, we sorted trogocytosing T cells and verified their preferential reactivity and cytotoxicity. Furthermore, tumor Ag-imprinted T cells were detected at low frequency in fresh TIL cultures shortly after extraction from the tumor. Thus, T cell imprinting by tumor Ags may allow the enrichment of melanoma Ag-specific T cells for research and potentially even for the adoptive immunotherapy of patients with cancer.
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Affiliation(s)
- Galit Eisenberg
- Sharett Institute of Oncology, Hadassah Medical Organization, Jerusalem 91120, Israel
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Chemovirotherapy of malignant melanoma with a targeted and armed oncolytic measles virus. J Invest Dermatol 2012; 133:1034-42. [PMID: 23223133 DOI: 10.1038/jid.2012.459] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Effective treatment modalities for advanced melanoma are desperately needed. An innovative approach is virotherapy, in which viruses are engineered to infect cancer cells, resulting in tumor cell lysis and an amplification effect by viral replication and spread. Ideally, tumor selectivity of these oncolytic viruses is already determined during viral cell binding and entry, which has not been reported for melanoma. We engineered an oncolytic measles virus entering melanoma cells through the high molecular weight melanoma-associated antigen (HMWMAA) and proved highly specific infection and spread in melanoma cells. We further enhanced this oncolytic virus by inserting the FCU1 gene encoding the yeast-derived prodrug convertases cytosine deaminase and uracil phosphoribosyltransferase. Combination treatment with armed and retargeted MV-FCU1-αHMWMAA and the prodrug 5-fluorocytosine (5-FC) led to effective prodrug conversion to 5-fluorouracil, extensive cytotoxicity to melanoma cells, and excessive bystander killing of noninfected cells. Importantly, HMWMAA-retargeted MV showed antitumor activity in a human xenograft mouse model, which was further increased by the FCU1/5-FC prodrug activation system. Finally, we demonstrated susceptibility of melanoma skin metastasis biopsies to HMWMAA-retargeted MV. The highly selective, entry-targeted and armed oncolytic virus MV-FCU1-αHMWMAA may become a potent building block of future melanoma therapies.
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Hannan R, Zhang H, Wallecha A, Singh R, Liu L, Cohen P, Alfieri A, Rothman J, Guha C. Combined immunotherapy with Listeria monocytogenes-based PSA vaccine and radiation therapy leads to a therapeutic response in a murine model of prostate cancer. Cancer Immunol Immunother 2012; 61:2227-38. [PMID: 22644735 PMCID: PMC11028516 DOI: 10.1007/s00262-012-1257-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Accepted: 03/28/2012] [Indexed: 10/28/2022]
Abstract
Radiation therapy (RT) is an integral part of prostate cancer treatment across all stages and risk groups. Immunotherapy using a live, attenuated, Listeria monocytogenes-based vaccines have been shown previously to be highly efficient in stimulating anti-tumor responses to impact on the growth of established tumors in different tumor models. Here, we evaluated the combination of RT and immunotherapy using Listeria monocytogenes-based vaccine (ADXS31-142) in a mouse model of prostate cancer. Mice bearing PSA-expressing TPSA23 tumor were divided to 5 groups receiving no treatment, ADXS31-142, RT (10 Gy), control Listeria vector and combination of ADXS31-142 and RT. Tumor growth curve was generated by measuring the tumor volume biweekly. Tumor tissue, spleen, and sera were harvested from each group for IFN-γ ELISpot, intracellular cytokine assay, tetramer analysis, and immunofluorescence staining. There was a significant tumor growth delay in mice that received combined ADXS31-142 and RT treatment as compared with mice of other cohorts and this combined treatment causes complete regression of their established tumors in 60 % of the mice. ELISpot and immunohistochemistry of CD8+ cytotoxic T Lymphocytes (CTL) showed a significant increase in IFN-γ production in mice with combined treatment. Tetramer analysis showed a fourfold and a greater than 16-fold increase in PSA-specific CTLs in animals receiving ADXS31-142 alone and combination treatment, respectively. A similar increase in infiltration of CTLs was observed in the tumor tissues. Combination therapy with RT and Listeria PSA vaccine causes significant tumor regression by augmenting PSA-specific immune response and it could serve as a potential treatment regimen for prostate cancer.
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Affiliation(s)
- Raquibul Hannan
- Department of Radiation Oncology, UT Southwestern Medical Center, 5801 Forest Park Rd., Dallas, TX, 75390-9183, USA.
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Rivera Z, Ferrone S, Wang X, Jube S, Yang H, Pass HI, Kanodia S, Gaudino G, Carbone M. CSPG4 as a target of antibody-based immunotherapy for malignant mesothelioma. Clin Cancer Res 2012; 18:5352-63. [PMID: 22893632 DOI: 10.1158/1078-0432.ccr-12-0628] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Malignant mesothelioma (MM) is an aggressive cancer, resistant to current therapies. Membrane chondroitin sulphate proteoglycan 4 (CSPG4), which has been successfully targeted in melanoma and breast cancer, was found highly expressed in MM, but not in normal mesothelium. Therefore, we explored CSPG4 as a suitable target for monoclonal antibody (mAb)-based immunotherapy for MM. EXPERIMENTAL DESIGN We assayed adhesion, motility, invasiveness, wound-healing, apoptosis, and anchorage-independent growth of MM cells on cell cultures. CSPG4 expression and signaling was studied by immunoblotting. The growth of MM severe combined immunodeficient (SCID) mice xenografts induced by PPM-Mill cells, engineered to express the luciferase reporter gene, was monitored by imaging, upon treatment with CSPG4 mAb TP41.2. Animal toxicity and survival were assayed in both tumor inhibition and therapeutic experiments. RESULTS CSPG4 was expressed on 6 out of 8 MM cell lines and in 25 out of 41 MM biopsies, with minimal expression in surrounding healthy cells. MM cell adhesion was mediated by CSPG4-dependent engagement of ECM. Cell adhesion was inhibited by mAb TP41.2 resulting in decreased phosphorylation of focal adhesion kinase (FAK) and AKT, reduced expression of cyclin D1 and apoptosis. Moreover, mAb TP41.2 significantly reduced MM cell motility, migration, and invasiveness, and inhibited MM growth in soft agar. In vivo, treatment with mAb TP41.2 prevented or inhibited the growth of MM xenografts in SCID mice, with a significant increase in animal survival. CONCLUSION These results establish the safety of CSPG4 mAb-based immunotherapy and suggest that CSPG4 mAb-based immunotherapy may represent a novel approach for the treatment of MM.
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Price MA, Colvin Wanshura LE, Yang J, Carlson J, Xiang B, Li G, Ferrone S, Dudek AZ, Turley EA, McCarthy JB. CSPG4, a potential therapeutic target, facilitates malignant progression of melanoma. Pigment Cell Melanoma Res 2012; 24:1148-57. [PMID: 22004131 DOI: 10.1111/j.1755-148x.2011.00929.x] [Citation(s) in RCA: 132] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Chondroitin sulfate proteoglycan 4 (CSPG4), a transmembrane proteoglycan originally identified as a highly immunogenic tumor antigen on the surface of melanoma cells, is associated with melanoma tumor formation and poor prognosis in certain melanomas and several other tumor types. The complex mechanisms by which CSPG4 affects melanoma progression have started to be defined, in particular the association with other cell surface proteins and receptor tyrosine kinases (RTKs) and its central role in modulating the function of these proteins. CSPG4 is essential to the growth of melanoma tumors through its modulation of integrin function and enhanced growth factor receptor-regulated pathways including sustained activation of ERK 1,2. This activation of integrin, RTK, and ERK1,2 function by CSPG4 modulates numerous aspects of tumor progression. CSPG4 expression has further been correlated to resistance of melanoma to conventional chemotherapeutics. This review outlines recent advances in our understanding of CSPG4-associated cell signaling, describing the central role it plays in melanoma tumor cell growth, motility, and survival, and explores how modifying CSPG4 function and protein-protein interactions may provide us with novel combinatorial therapies for the treatment of advanced melanoma.
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Affiliation(s)
- Matthew A Price
- Department of Laboratory Medicine and Pathology, University of Minnesota Masonic Cancer Center, Minneapolis, MN, USA
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Gibby K, You WK, Kadoya K, Helgadottir H, Young LJ, Ellies LG, Chang Y, Cardiff RD, Stallcup WB. Early vascular deficits are correlated with delayed mammary tumorigenesis in the MMTV-PyMT transgenic mouse following genetic ablation of the NG2 proteoglycan. Breast Cancer Res 2012; 14:R67. [PMID: 22531600 PMCID: PMC3446402 DOI: 10.1186/bcr3174] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2011] [Revised: 03/16/2012] [Accepted: 03/24/2012] [Indexed: 01/07/2023] Open
Abstract
INTRODUCTION The neuron-glial antigen 2 (NG2) proteoglycan promotes pericyte recruitment and mediates pericyte interaction with endothelial cells. In the absence of NG2, blood vessel development is negatively impacted in several pathological models. Our goal in this study was to determine the effect of NG2 ablation on the early development and function of blood vessels in mammary tumors in the mammary tumor virus-driven polyoma middle T (MMTV-PyMT) transgenic mouse, and to correlate these vascular changes with alterations in mammary tumor growth. METHODS Three different tumor paradigms (spontaneous tumors, transplanted tumors, and orthotopic allografts of tumor cell lines) were used to investigate the effects of NG2 ablation on breast cancer progression in the MMTV-PyMT transgenic mouse. In addition to examining effects of NG2 ablation on mammary tumor growth, we also investigated effects on the structure and function of tumor vasculature. RESULTS Ablation of NG2 led to reduced early progression of spontaneous, transplanted, and orthotopic allograft mammary tumors. NG2 was not expressed by the mammary tumor cells themselves, but instead was found on three components of the tumor stroma. Microvascular pericytes, myeloid cells, and adipocytes were NG2-positive in both mouse and human mammary tumor stroma. The effect of NG2 on tumor progression therefore must be stromal in nature. Ablation of NG2 had several negative effects on early development of the mammary tumor vasculature. In the absence of NG2, pericyte ensheathment of endothelial cells was reduced, along with reduced pericyte maturation, reduced sprouting of endothelial cells, reduced assembly of the vascular basal lamina, and reduced tumor vessel diameter. These early deficits in vessel structure are accompanied by increased vessel leakiness, increased tumor hypoxia, and decreased tumor growth. NG2 ablation also diminishes the number of tumor-associated and TEK tyrosine kinase endothelial (Tie2) expressing macrophages in mammary tumors, providing another possible mechanism for reducing tumor vascularization and growth. CONCLUSIONS These results emphasize the importance of NG2 in mediating pericyte/endothelial cell communication that is required for proper vessel maturation and function. In the absence of normal pericyte/endothelial cell interaction, poor vascular function results in diminished early progression of mammary tumors.
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Affiliation(s)
- Krissa Gibby
- Cancer Center, Tumor Microenvironment Program, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, CA 92037 USA
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Garusi E, Rossi S, Perris R. Antithetic roles of proteoglycans in cancer. Cell Mol Life Sci 2012; 69:553-79. [PMID: 21964924 PMCID: PMC11114698 DOI: 10.1007/s00018-011-0816-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Revised: 09/01/2011] [Accepted: 09/05/2011] [Indexed: 12/15/2022]
Abstract
Proteoglycans (PGs), a family of complex post-translationally sculptured macromolecules, are fundamental regulators of most normal and aberrant cellular functions. The unparalleled structural-functional diversity of PGs endows them with the ability to serve as critical mediators of the tumor cells' interaction with the host microenvironment, while directly contributing to the organization and dynamic remodeling of this milieu. Despite their indisputable importance during embryonic development and in the adult organism, and their frequent dysregulation in tumor lesions, their precise involvement in tumorigenesis awaits a more decisive demonstration. Particularly challenging is to ascertain to what extent selected PGs may catalyze tumor progression and to what extent they may inhibit it, implying antithetic functions of individual PGs. Integrated efforts are needed to consolidate the routine use of PGs in the clinical monitoring of cancer patients and to broaden the exploitation of these macromolecules as therapeutic targets. Several PGs have the required attributes to be contemplated as effective antigens for immunotherapeutic approaches, while the tangible results obtained in recent clinical trials targeting the NG2/CSPG4 transmembrane PG urge further development of PG-based cancer treatment modalities.
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Affiliation(s)
- Elena Garusi
- COMT, Centre for Molecular and Translational Oncology, University of Parma, Via G.P. Usberti 11/A, 43100 Parma, Italy
| | - Silvia Rossi
- COMT, Centre for Molecular and Translational Oncology, University of Parma, Via G.P. Usberti 11/A, 43100 Parma, Italy
- Department of Genetic, Biology of Microorganism, Anthropology and Evolution, University of Parma, Via G.P. Usberti 11/A, 43100 Parma, Italy
| | - Roberto Perris
- COMT, Centre for Molecular and Translational Oncology, University of Parma, Via G.P. Usberti 11/A, 43100 Parma, Italy
- Department of Genetic, Biology of Microorganism, Anthropology and Evolution, University of Parma, Via G.P. Usberti 11/A, 43100 Parma, Italy
- S.O.C. of Experimental Oncology 2, The National Cancer Institute Aviano, CRO-IRCCS, Via Franco Gallini, 2, 33081 Aviano, PN Italy
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Zhao X, Bose A, Komita H, Taylor JL, Chi N, Lowe DB, Okada H, Cao Y, Mukhopadhyay D, Cohen PA, Storkus WJ. Vaccines targeting tumor blood vessel antigens promote CD8(+) T cell-dependent tumor eradication or dormancy in HLA-A2 transgenic mice. THE JOURNAL OF IMMUNOLOGY 2012; 188:1782-8. [PMID: 22246626 DOI: 10.4049/jimmunol.1101644] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
We have recently shown that effective cytokine gene therapy of solid tumors in HLA-A2 transgenic (HHD) mice lacking murine MHC class I molecule expression results in the generation of HLA-A2-restricted CD8(+) T effector cells selectively recognizing tumor blood vessel-associated pericytes and/or vascular endothelial cells. Using an HHD model in which HLA-A2(neg) tumor (MC38 colon carcinoma or B16 melanoma) cells are not recognized by the CD8(+) T cell repertoire, we now show that vaccines on the basis of tumor-associated blood vessel Ags (TBVA) elicit protective Tc1-dependent immunity capable of mediating tumor regression or extending overall survival. Vaccine efficacy was not observed if (HLA-A2(neg)) wild-type C57BL/6 mice were instead used as recipient animals. In the HHD model, effective vaccination resulted in profound infiltration of tumor lesions by CD8(+) (but not CD4(+)) T cells, in a coordinate reduction of CD31(+) blood vessels in the tumor microenvironment, and in the "spreading" of CD8(+) T cell responses to alternate TBVA that were not intrinsic to the vaccine. Protective Tc1-mediated immunity was durable and directly recognized pericytes and/or vascular endothelial cells flow-sorted from tumor tissue but not from tumor-uninvolved normal kidneys harvested from these same animals. Strikingly, the depletion of CD8(+), but not CD4(+), T cells at late time points after effective therapy frequently resulted in the recurrence of disease at the site of the regressed primary lesion. This suggests that the vaccine-induced anti-TBVA T cell repertoire can mediate the clinically preferred outcomes of either effectively eradicating tumors or policing a state of (occult) tumor dormancy.
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Affiliation(s)
- Xi Zhao
- Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
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Guirnalda P, Wood L, Paterson Y. Listeria monocytogenes and its products as agents for cancer immunotherapy. Adv Immunol 2012; 113:81-118. [PMID: 22244580 DOI: 10.1016/b978-0-12-394590-7.00004-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This review covers the use of Listeria monocytogenes and its virulence factors as cancer immunotherapeutics. We describe their development as vectors to carry protein tumor antigen and eukaryotic DNA plasmids to antigen-presenting cells and efforts to harness their tumor-homing properties. We also describe their use as vectors of angiogenic molecules to induce an immune response that will destroy tumor vasculature. The background knowledge necessary to understand the biology behind the rationale to develop Listeria as a vaccine vector for tumor immunotherapy is included as well as a brief summary of the major therapies that have used this approach thus far.
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Affiliation(s)
- Patrick Guirnalda
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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Wang X, Katayama A, Wang Y, Yu L, Favoino E, Sakakura K, Favole A, Tsuchikawa T, Silver S, Watkins SC, Kageshita T, Ferrone S. Functional characterization of an scFv-Fc antibody that immunotherapeutically targets the common cancer cell surface proteoglycan CSPG4. Cancer Res 2011; 71:7410-22. [PMID: 22021902 DOI: 10.1158/0008-5472.can-10-1134] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Cell surface chondroitin sulfate proteoglycan 4 (CSPG4) is an attractive target for antibody-based cancer immunotherapy because of its role in tumor cell biology, its high expression on malignant cells including cancer-initiating cells, and its restricted distribution in normal tissues. The clinical use of CSPG4 has been hampered by the lack of a CSPG4-specific chimeric, humanized, or fully human monoclonal antibody. To overcome this limitation, we generated a CSPG4-specific fully human single-chain antibody termed scFv-FcC21 and characterized its specificity and antitumor activity. Viable CSPG4(+) melanoma cells were used in a screen of a human scFv phage display library that included CDR3 engineered to optimize antibody binding sites. The scFv antibody isolated was then recombinantly engineered with a human immunoglobulin G1 Fc region to construct the fully human antibody scFv-FcC21, which recognized tumors of neuroectodermal origin, various types of carcinomas, mesotheliomas, and sarcomas as well as myeloid leukemias. scFv-FcC21 inhibited in vitro growth and migration of tumor cells and in vivo growth of human tumor xenografts. These effects were mediated by inhibition of the activation of extracellular signal-regulated kinase and focal adhesion kinase signaling pathways that are critical for tumor cell growth and migration, respectively. Our findings define the CSPG4-specific fully human scFv-FcC21 antibody as a candidate therapeutic agent to target the many types of tumors that express CSPG4.
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Affiliation(s)
- Xinhui Wang
- University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania 15213, USA
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Morandi F, Corrias MV, Levreri I, Scaruffi P, Raffaghello L, Carlini B, Bocca P, Prigione I, Stigliani S, Amoroso L, Ferrone S, Pistoia V. Serum levels of cytoplasmic melanoma-associated antigen at diagnosis may predict clinical relapse in neuroblastoma patients. Cancer Immunol Immunother 2011; 60:1485-95. [PMID: 21660451 DOI: 10.1007/s00262-011-1052-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2011] [Accepted: 05/24/2011] [Indexed: 12/13/2022]
Abstract
The high molecular weight melanoma-associated antigen (HMW-MAA) and the cytoplasmic melanoma-associated antigen (cyt-MAA/LGALS3BP) are expressed in melanoma. Their serum levels are increased in melanoma patients and correlate with clinical outcome. We investigated whether these molecules can serve as prognostic markers for neuroblastoma (NB) patients. Expression of cyt-MAA and HMW-MAA was evaluated by flow cytometry in NB cell lines, patients' neuroblasts ((FI)-NB), and short-term cultures of these latter cells (cNB). LGALS3BP gene expression was evaluated by RT-qPCR on (FI)-NB, cNB, and primary tumor specimens. Soluble HMW-MAA and cyt-MAA were tested by ELISA. Cyt-MAA and HMW-MAA were expressed in NB cell lines, cNB, and (FI)-NB samples. LGALS3BP gene expression was higher in primary tumors and cNB than in (FI)-NB samples. Soluble cyt-MAA, but not HMW-MAA, was detected in NB cell lines and cNBs supernatants. NB patients' serum levels of both antigens were higher than those of the healthy children. High cyt-MAA serum levels at diagnosis associated with higher incidence of relapse, independently from other known risk factors. In conclusion, both HMW-MAA and cyt-MAA antigens, and LGALS3BP gene, were expressed by NB cell lines and patients' neuroblasts, and both antigens' serum levels were increased in NB patients. Elevated serum levels of cyt-MAA at diagnosis correlated with relapse, supporting that cyt-MAA may serve as early serological biomarker to individuate patients at higher risk of relapse that may require a more careful follow-up, after being validated in a larger cohort of patients at different time-points during follow-up. Given its immunogenicity, cyt-MAA may also be a potential target for NB immunotherapy.
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Affiliation(s)
- Fabio Morandi
- Laboratory of Oncology, G. Gaslini Children's Hospital, Largo G. Gaslini 5, 16148 Genoa, Italy.
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Specificity of mimotope-induced anti-high molecular weight-melanoma associated antigen (HMW-MAA) antibodies does not ensure biological activity. PLoS One 2011; 6:e19383. [PMID: 21573118 PMCID: PMC3089623 DOI: 10.1371/journal.pone.0019383] [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: 02/11/2011] [Accepted: 03/28/2011] [Indexed: 01/26/2023] Open
Abstract
Vaccines based on peptide mimics (mimotopes) of conformational tumor antigen epitopes have been investigated for a variety of human tumors including breast cancer, tumors expressing the carcinoembryonic antigen, B cell lymphoma, neuroblastoma, and melanoma. In our previous work, we designed a vaccine based on a mimotope of the high molecular weight-melanoma associated antigen (HMW-MAA) that elicited HMW-MAA-specific antibodies (Abs) with anti-tumor activity in vitro and in vivo. In this study, we aimed to identify mimotopes of additional distinct HMW-MAA epitopes, since they could be used to construct a polymimotope melanoma vaccine. For this purpose, random peptide phage libraries were screened with the anti-HMW-MAA monoclonal antibodies (mAbs) VT80.12 and VF1-TP43 yielding one peptide ligand for each mAb. Both peptides inhibited the binding of the corresponding mAb to the HMW-MAA. Furthermore, when coupled to the carrier protein keyhole limpet hemocyanin (KLH), both HMW-MAA mimotopes elicited peptide-specific Abs in rabbits or BALB/c mice, but only the mimotope isolated with the mAb VT80.12 elicited HMW-MAA-specific Abs and only in mice. However, the latter Abs had no detectable effect on HMW-MAA expressing human melanoma cells in vitro. These results describe limitations related to the phage display technique and emphasize the need to characterize the functional properties of the mAb utilized to isolate mimotopes of the corresponding epitopes.
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Mayayo SL, Prestigio S, Maniscalco L, Rosa GL, Aricò A, Maria RD, Cavallo F, Ferrone S, Buracco P, Iussich S. Chondroitin sulfate proteoglycan-4: a biomarker and a potential immunotherapeutic target for canine malignant melanoma. Vet J 2011; 190:e26-e30. [PMID: 21482159 DOI: 10.1016/j.tvjl.2011.02.020] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Revised: 02/08/2011] [Accepted: 02/23/2011] [Indexed: 12/27/2022]
Abstract
Chondroitin sulfate proteoglycan-4 (CSPG4), also known as high molecular weight-melanoma associated antigen (HMW-MAA), is a membrane-bound chondroitin sulfate proteoglycan highly expressed by human melanoma cells. This phylogenetically conserved tumour antigen plays an important biological role in human melanoma, where it is used as a marker to diagnose forms with unusual characteristics, such as desmoplastic melanoma, and to detect melanoma cells in lymph nodes and peripheral blood, and as a target for immunotherapy because of its restricted distribution in normal tissues. To identify suitable targets to develop novel approaches of treating canine melanoma, CSPG4 was studies to see whether it is expressed in canine malignant melanomas. Immunohistochemical staining of 65 canine malignant melanomas with an anti-human CSPG4-specific antibody detected CSPG4 in 37 cases (56.9%). Positive staining was more frequent, albeit not significantly, in amelanotic compared to melanotic tumours and was statistically associated with tumours having both melanin and the epithelioid histotype. The frequency of CSPG4 expression was similar to that of other melanoma antigens used as diagnostic markers for canine malignant melanoma, such as Melan A and the protein recognized by the PNL2 monoclonal antibody. The results suggest that CSPG4 constitutes a new potential immunohistochemical marker of canine malignant melanoma and may represent an immunotherapeutic target as in humans.
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Affiliation(s)
| | - Simone Prestigio
- Molecular Biotechnology Center, Department of Clinical and Biological Sciences, University of Turin, Turin, Italy
| | | | - Giuseppe La Rosa
- Faculty of Veterinary Medicine, University of Turin, Turin, Italy
| | - Arianna Aricò
- Faculty of Veterinary Medicine, University of Padua, Padua, Italy
| | | | - Federica Cavallo
- Molecular Biotechnology Center, Department of Clinical and Biological Sciences, University of Turin, Turin, Italy
| | - Soldano Ferrone
- University of Pittsburgh Cancer Institute, Departments of Surgery, of Immunology, and of Pathology, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15232, USA
| | - Paolo Buracco
- Faculty of Veterinary Medicine, University of Turin, Turin, Italy
| | - Selina Iussich
- Faculty of Veterinary Medicine, University of Turin, Turin, Italy.
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Targeting tumor vasculature with novel Listeria-based vaccines directed against CD105. Cancer Immunol Immunother 2011; 60:931-42. [PMID: 21431419 PMCID: PMC4438988 DOI: 10.1007/s00262-011-1002-x] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2011] [Accepted: 03/01/2011] [Indexed: 12/20/2022]
Abstract
The FDA approval of bevacizumab (Avastin®, Genentech/Roche), a monoclonal antibody raised against human VEGF-A, as second-line therapy for colon and lung carcinoma validated the approach of targeting human tumors with angiogenesis inhibitors. While the VEGF/VEGFR pathway is a viable target for anti-angiogenesis tumor therapy, additional targets involved in tumor neovascularization have been identified. One promising target present specifically on tumor vasculature is endoglin (CD105), a member of the TGF-β receptor complex expressed on vascular endothelium and believed to play a role in angiogenesis. Monoclonal antibody therapy and preventive vaccination against CD105 has met with some success in controlling tumor growth. This report describes the in vivo proof-of-concept studies for two novel therapeutic vaccines, Lm-LLO-CD105A and Lm-LLO-CD105B, directed against CD105 as a strategy to target neovascularization of established tumors. Listeria-based vaccines directed against CD105 lead to therapeutic responses against primary and metastatic tumors in the 4T1-Luc and NT-2 mouse models of breast cancer. In a mouse model for autochthonous Her-2/neu-driven breast cancer, Lm-LLO-CD105A vaccination prevented tumor incidence in 20% of mice by week 58 after birth while all control mice developed tumors by week 40. In comparison with previous Listeria-based vaccines targeting tumor vasculature, Lm-LLO-CD105A and Lm-LLO-CD105B demonstrated equivalent or superior efficacy against two transplantable mouse models of breast cancer. Support is provided for epitope spreading to endogenous tumor antigens and reduction in tumor vascularity after vaccination with Listeria-based CD105 vaccines. Reported here, these CD105 therapeutic vaccines are highly effective in stimulating anti-angiogenesis and anti-tumor immune responses leading to therapeutic efficacy against primary and metastatic breast cancer.
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