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Xu X, Cai H, Peng J, Liu H, Chu F. HBB as a Novel Biomarker for the Diagnosis and Monitoring of Lung Cancer Regulates Cell Proliferation via ERK1/2 Pathway. Technol Cancer Res Treat 2024; 23:15330338241249032. [PMID: 38679728 PMCID: PMC11057351 DOI: 10.1177/15330338241249032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 03/16/2024] [Accepted: 04/04/2024] [Indexed: 05/01/2024] Open
Abstract
Objective: Recent studies have revealed that hemoglobin beta (HBB) plays an important role not only in blood disorders but also in malignancies. The aim of this study is to investigate the clinical significance, diagnostic value, and biological function of HBB in lung cancer. Methods: HBB expression was examined in lung cancer tissues and plasma samples using quantitative real-time polymerase chain reaction, and its relationship with clinical pathological characteristics was analyzed. Receiver operating characteristic (ROC) curves were constructed to evaluate the diagnostic value of HBB in lung cancer. The proliferation of A549 and SPCA1 cells was analyzed using a cell counting kit-8 assay and protein expressions were detected by western blot. Results: The expressions of HBB were found to be down-regulated in both lung cancer tissues and plasma samples. Notably, plasma HBB levels were significantly elevated in postoperative samples when compared to their preoperative counterparts. Across 66 cases of lung cancer tissues, a correlation was observed between HBB levels and both gender and tumor, node, metastasis staging. ROC curve analysis further confirmed the high diagnostic potential of HBB expression in lung cancer. Moreover, the combination of HBB and carcinoembryonic antigen (CEA) had greater significance than HBB or CEA alone in the diagnosis of lung cancer. Knocking out or overexpressing HBB could affect lung cancer cell proliferation through the ERK1/2 signaling pathway. Conclusion: HBB can serve as a novel biomarker for the diagnosis and monitoring of lung cancer, regulating cell proliferation via the ERK1/2 pathway and playing a pivotal role in the oncogenesis and progression of the disease.
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Affiliation(s)
- Xinxin Xu
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, China
| | - Hua Cai
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, China
| | - Jingjing Peng
- Department of Laboratory Medicine, Affliated Hospital 2 of Nantong University, Nantong, China
| | - Hongli Liu
- Department of Laboratory Medicine, Nantong Tumor Hospital, Nantong, China
| | - Fuying Chu
- Department of Laboratory Medicine, Affliated Hospital 2 of Nantong University, Nantong, China
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Wu M, Xiao Y, Huang J, Wang Y, Zhang Y, Xu J, Dai H, Lv C, Hu Y, Chen B, Fu Q, Le W, Xue C. Liquid nitrogen frozen cells for chemotherapy drug delivery and vaccination of melanoma. J Cancer Res Clin Oncol 2023; 149:13705-13716. [PMID: 37522925 DOI: 10.1007/s00432-023-05117-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 07/04/2023] [Indexed: 08/01/2023]
Abstract
PURPOSE Cancer vaccine (CV) has thrived as a promising tool for cancer prevention and treatment. However, how to maintain the integrity and diversity of individualized vaccine antigens and activate the adaptive immune system is still challenging. METHODS Herein, a preventive and therapeutic vaccine platform for in situ effective multi-model synergistic therapy is developed. In our study, we process B16F10 cells by liquid nitrogen frozen (LNF) to obtain LNF cells, the characterization of LNF cells were conducted. Moreover, the anti-tumor effect and immune activation ability were studied, and the role as a CV were investigated. RESULTS The LNF cells preserve intact cellular structure and tumor-associated self-antigen gp100. Moreover, LNF cells have the ability of loading and releasing doxorubicin (DOX). Except for the anti-tumor effect of chemotherapy brought by DOX, the LNF cells can promote the maturation of dendritic cells (DCs) and induce immune response by activating CD4+ and CD8+ T cells, particularly with the existence of adjuvant, R848. Specifically, the CD8+ T cells of mice in LNF-DOX/R848 group are 6 times of that in PBS group in tumor microenvironment, and twice in spleen. Therefore, LNF cells can also be utilized as a CV. Vaccination with LNF/R848 cells effectively suppress the tumor growth in mice by fivefold as compared to the control group. CONCLUSION In this work, we obtain the LNF cells with a simple procedure. The LNF cells not only provides a tumor cells-based multi-modal system for cancer therapy but inspires new insights into future development of individualized CVs strategies. This study processes live B16F10 cells by liquid nitrogen frozen to obtain LNF cells, which preserve cell integrity and homologous targeting ability. The LNF cells can load and deliver drug and can serve as tumor vaccine. Results demonstrated the LNF cells have effective prophylactic ability, and ideal anti-tumor ability with the loaded drug and adjuvant.
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Affiliation(s)
- Minliang Wu
- Department of Plastic Surgery, Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Yuai Xiao
- Department of Plastic Surgery, Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Jianguo Huang
- Institute for Regenerative Medicine, Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Yuchong Wang
- Department of Plastic Surgery, Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Yifan Zhang
- Institute for Regenerative Medicine, Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Jianguo Xu
- Department of Plastic Surgery, Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Haiying Dai
- Department of Plastic Surgery, Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Chuan Lv
- Department of Plastic Surgery, Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Yihui Hu
- Institute for Regenerative Medicine, Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Bingdi Chen
- Institute for Regenerative Medicine, Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Qingge Fu
- Department of Orthopedic Trauma, Changhai Hospital, Naval Medical University, Shanghai, 200433, China.
| | - Wenjun Le
- Institute for Regenerative Medicine, Shanghai East Hospital, The Institute for Biomedical Engineering & Nano Science, School of Medicine, Tongji University, Shanghai, 200092, China.
| | - Chunyu Xue
- Department of Plastic Surgery, Changhai Hospital, Naval Medical University, Shanghai, 200433, China.
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Vergato C, Doshi KA, Roblyer D, Waxman DJ. Type-I interferon signaling is essential for robust metronomic chemo-immunogenic tumor regression in murine breast cancer. CANCER RESEARCH COMMUNICATIONS 2022; 2:246-257. [PMID: 36187936 PMCID: PMC9524291 DOI: 10.1158/2767-9764.crc-21-0148] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Many patients with breast cancer have a poor prognosis with limited therapeutic options. Here, we investigated the potential of chemo-immunogenic therapy as an avenue of treatment. We utilized two syngeneic mouse mammary tumor models, 4T1 and E0771, to examine the chemo-immunogenic potential of cyclophosphamide and the mechanistic contributions of cyclophosphamide-activated type-I interferon (IFN) signaling to therapeutic activity. Chemically-activated cyclophosphamide induced robust IFNα/β receptor-1-dependent signaling linked to hundreds of IFN-stimulated gene responses in both cell lines. Further, in 4T1 tumors, cyclophosphamide given on a medium-dose, 6-day intermittent metronomic schedule induced strong IFN signaling but comparatively weak immune cell infiltration associated with long-term tumor growth stasis. Induction of IFN signaling was somewhat weaker in E0771 tumors but was followed by widespread downstream gene responses, robust immune cell infiltration and extensive, prolonged tumor regression. The immune dependence of these effective anti-tumor responses was established by CD8 T-cell immunodepletion, which blocked cyclophosphamide-induced E0771 tumor regression and led to tumor stasis followed by regrowth. Strikingly, IFNα/β receptor-1 antibody blockade was even more effective in preventing E0771 immune cell infiltration and blocked the major tumor regression induced by cyclophosphamide treatment. Type-I IFN signaling is thus essential for the robust chemo-immunogenic response of these tumors to cyclophosphamide administered on a metronomic schedule.
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Affiliation(s)
- Cameron Vergato
- Department of Biology, Boston University, Boston, Massachusetts
| | - Kshama A. Doshi
- Department of Biology, Boston University, Boston, Massachusetts
| | - Darren Roblyer
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts
| | - David J. Waxman
- Department of Biology, Boston University, Boston, Massachusetts
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts
- Corresponding Author: David J. Waxman, Department of Biology, Boston University, 5 Cummington Mall, Boston, MA 02215. Phone: 617-353-7401; E-mail:
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Storkus WJ, Maurer D, Lin Y, Ding F, Bose A, Lowe D, Rose A, DeMark M, Karapetyan L, Taylor JL, Chelvanambi M, Fecek RJ, Filderman JN, Looney TJ, Miller L, Linch E, Lowman GM, Kalinski P, Butterfield LH, Tarhini A, Tawbi H, Kirkwood JM. Dendritic cell vaccines targeting tumor blood vessel antigens in combination with dasatinib induce therapeutic immune responses in patients with checkpoint-refractory advanced melanoma. J Immunother Cancer 2021; 9:jitc-2021-003675. [PMID: 34782430 PMCID: PMC8593702 DOI: 10.1136/jitc-2021-003675] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/17/2021] [Indexed: 01/12/2023] Open
Abstract
Background A first-in-human, randomized pilot phase II clinical trial combining vaccines targeting overexpressed, non-mutated tumor blood vessel antigens (TBVA) and tyrosine kinase inhibitor dasatinib was conducted in human leukocyte antigen (HLA)-A2+ patients with advanced melanoma. Methods Patient monocyte-derived type-1-polarized dendritic cells were loaded with HLA-A2-presented peptides derived from TBVA (DLK1, EphA2, HBB, NRP1, RGS5, TEM1) and injected intradermally as a vaccine into the upper extremities every other week. Patients were randomized into one of two treatment arms receiving oral dasatinib (70 mg two times per day) beginning in week 5 (Arm A) or in week 1 (Arm B). Trial endpoints included T cell response to vaccine peptides (interferon-γ enzyme-linked immunosorbent spot), objective clinical response (Response Evaluation Criteria in Solid Tumors V.1.1) and exploratory tumor, blood and serum profiling of immune-associated genes/proteins. Results Sixteen patients with advanced-stage cutaneous (n=10), mucosal (n=1) or uveal (n=5) melanoma were accrued, 15 of whom had previously progressed on programmed cell death protein 1 (PD-1) blockade. Of 13 evaluable patients, 6 patients developed specific peripheral blood T cell responses against ≥3 vaccine-associated peptides, with further evidence of epitope spreading. All six patients with specific CD8+ T cell response to vaccine-targeted antigens exhibited evidence of T cell receptor (TCR) convergence in association with preferred clinical outcomes (four partial response and two stabilization of disease (SD)). Seven patients failed to respond to vaccination (one SD and six progressive disease). Patients in Arm B (immediate dasatinib) outperformed those in Arm A (delayed dasatinib) for immune response rate (IRR; 66.7% vs 28.6%), objective response rate (ORR) (66.7% vs 0%), overall survival (median 15.45 vs 3.47 months; p=0.0086) and progression-free survival (median 7.87 vs 1.97 months; p=0.063). IRR (80% vs 25%) and ORR (60% vs 12.5%) was greater for females versus male patients. Tumors in patients exhibiting response to treatment displayed (1) evidence of innate and adaptive immune-mediated inflammation and TCR convergence at baseline, (2) on-treatment transcriptional changes associated with reduced hypoxia/acidosis/glycolysis, and (3) increased inflammatory immune cell infiltration and tertiary lymphoid structure neogenesis. Conclusions Combined vaccination against TBVA plus dasatinib was safe and resulted in coordinating immunologic and/or objective clinical responses in 6/13 (46%) evaluable patients with melanoma, particularly those initiating treatment with both agents. Trial registration number NCT01876212.
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Affiliation(s)
- Walter J Storkus
- Dermatology and Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Deena Maurer
- Translational and Regulatory Affairs, Parker Institute for Cancer Immunotherapy, San Francisco, CA, USA
| | - Yan Lin
- Biostatistics, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania, USA
| | - Fei Ding
- Biostatistics, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
| | - Anamika Bose
- Immunoregulation and Immunodiagnostics, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Devin Lowe
- Immunotherapeutics and Biotechnology, Texas Tech University Health Sciences Center, Abilene, Texas, USA
| | - Amy Rose
- Clinical Research Services, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
| | - Melissa DeMark
- Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Lilit Karapetyan
- Medicine, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
| | - Jennifer L Taylor
- Dermatology and Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Manoj Chelvanambi
- Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Ronald J Fecek
- Microbiology and Immunology, LECOM, Greensburg, Pennsylvania, USA
| | - Jessica N Filderman
- Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | | | - Lauren Miller
- Molecular Biology, Thermo Fisher Scientific, Santa Clara, Carlsbad, California, USA
| | - Elizabeth Linch
- Molecular Biology, Thermo Fisher Scientific, Santa Clara, Carlsbad, California, USA
| | - Geoffrey M Lowman
- Molecular Biology, Thermo Fisher Scientific, Santa Clara, Carlsbad, California, USA
| | - Pawel Kalinski
- Medical Oncology and Immunology, Roswell Park Cancer Institute, Buffalo, New York, USA
| | - Lisa H Butterfield
- Research and Development, Parker Institute for Cancer Immunotherapy, San Francisco, California, USA
- Microbiology and Immunology, University of California San Francisco, San Francisco, California, USA
| | - Ahmad Tarhini
- Cutaneous Oncology and Immunology, Moffitt Cancer Center, Tampa, Florida, USA
| | - Hussein Tawbi
- Melanoma Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - John M Kirkwood
- Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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5
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Sharma H, Bose A, Sachdeva R, Malik M, Kumar U, Pal R. Haemoglobin drives inflammation and initiates antigen spread and nephritis in lupus. Immunology 2021; 165:122-140. [PMID: 34549818 DOI: 10.1111/imm.13418] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 06/30/2021] [Accepted: 09/14/2021] [Indexed: 01/15/2023] Open
Abstract
Haemoglobin (Hb) has well-documented inflammatory effects and is normally efficiently scavenged; clearance mechanisms can be overwhelmed during erythrocyte lysis. Whether Hb is preferentially inflammatory in lupus and triggers broad anti-self responses was assessed. Peripheral blood mononuclear cells (PBMCs) derived from SLE patients secreted higher levels of lupus-associated inflammatory cytokines when incubated with human Hb than did PBMCs derived from healthy donors, an effect negated by haptoglobin. Ferric murine Hb triggered the preferential release of lupus-associated cytokines from splenocytes, B cells, CD4 T cells, CD8 T cells and plasmacytoid dendritic cells isolated from ageing, lupus-prone NZM2410 mice, and also had mitogenic effects on B cells. Pull-downs, followed by mass spectrometry, revealed interactions of Hb with several lupus-associated autoantigens; co-incubation of ferric Hb with apoptotic blebs (structures that contain packaged autoantigens) revealed synergies-in terms of cytokine release and autoantibody production in vitro-that were also restricted to the lupus genotype. Murine ferric Hb activated multiple signalling pathways and, in combination with apoptotic blebs, preferentially triggered MAP kinase signalling specifically in splenocytes isolated from lupus-prone mice. Infusion of murine ferric Hb into lupus-prone mice led to enhanced release of lupus-associated cytokines, the generation of a spectrum of autoantibodies and enhanced-onset glomerulosclerosis. Given that the biased recognition of ferric Hb in a lupus milieu, possibly in concert with lupus-associated autoantigens, triggers inflammatory responses and the generation of lupus-associated cytokines, and also stimulates the generation of potentially pathogenic lupus-associated autoantibodies, neutralization of Hb could have beneficial effects.
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Affiliation(s)
- Hritika Sharma
- Immunoendocrinology Lab, National Institute of Immunology, New Delhi, India
| | - Anjali Bose
- Immunoendocrinology Lab, National Institute of Immunology, New Delhi, India
| | - Ruchi Sachdeva
- Immunoendocrinology Lab, National Institute of Immunology, New Delhi, India
| | - Monika Malik
- Immunoendocrinology Lab, National Institute of Immunology, New Delhi, India
| | - Uma Kumar
- Department of Rheumatology, All India Institute of Medical Sciences, New Delhi, India
| | - Rahul Pal
- Immunoendocrinology Lab, National Institute of Immunology, New Delhi, India
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6
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Fang Z, Jiang C, Li S. The Potential Regulatory Roles of Circular RNAs in Tumor Immunology and Immunotherapy. Front Immunol 2021; 11:617583. [PMID: 33613544 PMCID: PMC7886782 DOI: 10.3389/fimmu.2020.617583] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 12/14/2020] [Indexed: 12/13/2022] Open
Abstract
Circular RNAs (circRNAs) are covalently closed RNA molecules in eukaryotes with features of high stability, tissue-specific and cell-specific expression. According to their biogenesis, circRNAs are mainly classified into five types, i.e. exonic circRNAs (EciRNAs), exon-intron circRNAs (EIciRNAs), intronic RNAs (CiRNAs), fusion circRNAs (f-circRNAs), and read-through circRNAs (rt-circRNAs). CircRNAs have been emerging as important non-coding regulatory RNAs in a variety of human cancers. CircRNA4s were revealed to exert regulatory function through multiple mechanisms, such as sponges/decoys of miRNAs and proteins, enhancers of protein functions, protein scaffolds, protein recruitment, or protein translation templates. Furthermore, some circRNAs are intensively associated with immune cells in tumor immune microenvironment (TIME), e.g. circARSP91 and natural killer cells. Through regulating immune checkpoint genes, circRNAs are demonstrated to modulate the immune checkpoint blockade immunotherapy, e.g. circCPA4 could up-regulate PD-L1 expression. In summary, we reviewed the molecular features of circRNAs and mechanisms how they exert functions. We further summarized functional implications of circRNA regulations in tumor immunology and immunotherapy. Further understanding of the regulatory roles of circRNAs in tumor immunology and immunotherapy will benefit tumor treatment.
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Affiliation(s)
- Zhixiao Fang
- Institute of Translational Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chunjie Jiang
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
| | - Shengli Li
- Institute of Translational Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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7
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Ludwig S, Hong CS, Razzo BM, Fabian KPL, Chelvanambi M, Lang S, Storkus WJ, Whiteside TL. Impact of combination immunochemotherapies on progression of 4NQO-induced murine oral squamous cell carcinoma. Cancer Immunol Immunother 2019; 68:1133-1141. [PMID: 31139925 PMCID: PMC10577812 DOI: 10.1007/s00262-019-02348-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 05/20/2019] [Indexed: 12/12/2022]
Abstract
Advanced oral squamous cell carcinomas (OSCC) have limited therapeutic options. Although immune therapies are emerging as a potentially effective alternative or adjunct to chemotherapies, the therapeutic efficacy of combination immune chemotherapies has yet to be determined. Using a 4-nitroquinolone-N-oxide (4NQO) orthotopic model of OSCC in immunocompetent mice, we evaluated the therapeutic efficacy of single- and combined-agent treatment with a poly-epitope tumor peptide vaccine, cisplatin and/or an A2AR inhibitor, ZM241385. The monotherapies or their combinations resulted in a partial inhibition of tumor growth and, in some cases, a significant but transient upregulation of systemic anti-tumor CD8+ T cell responses. These responses eroded in the face of expanding immunoregulatory cell populations at later stages of tumor progression. Our findings support the need for the further development of combinatorial therapeutic approaches that could more effectively silence dominant immune inhibitory pathways operating in OSCC and provide novel, more beneficial treatment options for this tumor.
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Affiliation(s)
- Sonja Ludwig
- Department of Otorhinolaryngology and Head and Surgery, University Hospital Essen, Essen, Germany
- University of Pittsburgh, Medical Center (UPMC), Hillman Cancer Center, Suite 1.32b, 5117 Centre Ave, Pittsburgh, PA, 15213, USA
| | - Chang-Sook Hong
- University of Pittsburgh, Medical Center (UPMC), Hillman Cancer Center, Suite 1.32b, 5117 Centre Ave, Pittsburgh, PA, 15213, USA
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15261, USA
| | - Beatrice M Razzo
- University of Pittsburgh, Medical Center (UPMC), Hillman Cancer Center, Suite 1.32b, 5117 Centre Ave, Pittsburgh, PA, 15213, USA
| | - Kellsye P L Fabian
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15261, USA
| | - Manoj Chelvanambi
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15261, USA
| | - Stephan Lang
- Department of Otorhinolaryngology and Head and Surgery, University Hospital Essen, Essen, Germany
| | - Walter J Storkus
- University of Pittsburgh, Medical Center (UPMC), Hillman Cancer Center, Suite 1.32b, 5117 Centre Ave, Pittsburgh, PA, 15213, USA
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15261, USA
- Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15261, USA
| | - Theresa L Whiteside
- University of Pittsburgh, Medical Center (UPMC), Hillman Cancer Center, Suite 1.32b, 5117 Centre Ave, Pittsburgh, PA, 15213, USA.
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15261, USA.
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15261, USA.
- Department of Otolaryngology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA.
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Abstract
It has been known for decades that the immune system can be spontaneously activated against melanoma. The presence of tumor infiltrating lymphocytes in tumor deposits is a positive prognostic factor. Cancer vaccination includes approaches to generate, amplify, or skew antitumor immunity. To accomplish this goal, tested approaches involve administration of tumor antigens, antigen presenting cells or other immune modulators, or direct modulation of the tumor. Because the success of checkpoint blockade can depend in part on an existing antitumor response, cancer vaccination may play an important role in future combination therapies. In this review, we discuss a variety of melanoma vaccine approaches and methods to determine the biological impact of vaccination.
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9
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Jain S, Bose A, Bastia B, Sharma H, Sachdeva R, Jain AK, Pal R. Oxidized Hemoglobin Is Antigenic and Immunogenic in Lupus. Front Immunol 2017; 8:732. [PMID: 28694810 PMCID: PMC5483465 DOI: 10.3389/fimmu.2017.00732] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 06/09/2017] [Indexed: 12/31/2022] Open
Abstract
Hemolysis-associated anemia is characteristic of diseases such as atherosclerosis, lupus, malaria, and leishmaniasis; the toxic effects of free hemoglobin (Hb) have been extensively described. This study was based on the premise that release of this sequestered, inflammatory molecule can result in deleterious immunological consequences, particularly in the context of pre-existing lupus. IgG anti-Hb responses were detected in the sera of lupus patients. Lupus-prone mice exhibited heightened plasma Hb levels, and ferric (Fe3+) Hb triggered preferential release of lupus-associated cytokines from splenocytes derived from aging lupus-prone mice. Anti-Hb B cell precursor frequencies were heightened in such mice, which also expressed increased titers of anti-Hb antibodies in serum and in kidney eluates. Fe3+ Hb preferentially increased the functional maturation of bone marrow-derived dendritic cells (BMDCs) from lupus-prone mice, effects abrogated upon the inhibition of Stat3. Hb interacted with lupus-associated autoantigens extruded during apoptosis and coincubation of Hb and apoptotic blebs had additional maturation-inducing effects on lupus BMDCs. Immunization with Hb in lupus-prone mice induced antigen spreading to lupus-associated moieties; Hb-interacting autoantigens were preferentially targeted and increased complement deposition and glomerulosclerosis were observed. Hb therefore demonstrates both antigenicity and immunogenicity and triggers specific immuno-pathological effects in a lupus milieu.
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Affiliation(s)
- Sonia Jain
- Immunoendocrinology Laboratory, National Institute of Immunology, New Delhi, India
| | - Anjali Bose
- Immunoendocrinology Laboratory, National Institute of Immunology, New Delhi, India
| | - Banajit Bastia
- Division of Electron Microscopy, National Institute of Pathology-ICMR, New Delhi, India
| | - Hritika Sharma
- Immunoendocrinology Laboratory, National Institute of Immunology, New Delhi, India
| | - Ruchi Sachdeva
- Immunoendocrinology Laboratory, National Institute of Immunology, New Delhi, India
| | - Arun K Jain
- Division of Electron Microscopy, National Institute of Pathology-ICMR, New Delhi, India
| | - Rahul Pal
- Immunoendocrinology Laboratory, National Institute of Immunology, New Delhi, India
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Abstract
Cancer vaccines are designed to promote tumor specific immune responses, particularly cytotoxic CD8 positive T cells that are specific to tumor antigens. The earliest vaccines, which were developed in 1994-95, tested non-mutated, shared tumor associated antigens that had been shown to be immunogenic and capable of inducing clinical responses in a minority of people with late stage cancer. Technological developments in the past few years have enabled the investigation of vaccines that target mutated antigens that are patient specific. Several platforms for cancer vaccination are being tested, including peptides, proteins, antigen presenting cells, tumor cells, and viral vectors. Standard of care treatments, such as surgery and ablation, chemotherapy, and radiotherapy, can also induce antitumor immunity, thereby having cancer vaccine effects. The monitoring of patients' immune responses at baseline and after standard of care treatment is shedding light on immune biomarkers. Combination therapies are being tested in clinical trials and are likely to be the best approach to improving patient outcomes.
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Affiliation(s)
- Lisa H Butterfield
- Departments of Medicine, Surgery and Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
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11
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DLK1: a novel target for immunotherapeutic remodeling of the tumor blood vasculature. Mol Ther 2013; 21:1958-68. [PMID: 23896726 DOI: 10.1038/mt.2013.133] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Accepted: 05/22/2013] [Indexed: 12/14/2022] Open
Abstract
Tumor blood vessels are frequently inefficient in their design and function, leading to high interstitial fluid pressure, hypoxia, and acidosis in the tumor microenvironment (TME), rendering tumors refractory to the delivery of chemotherapeutic agents and immune effector cells. Here we identified the NOTCH antagonist delta-like 1 homologue (DLK1) as a vascular pericyte-associated antigen expressed in renal cell carcinomas (RCC), but not in normal kidney tissues in mice and humans. Vaccination of mice bearing established RCC against DLK1 led to immune-mediated elimination of DLK1(+) pericytes and to blood vessel normalization (i.e., decreased vascular permeability and intratumoral hypoxia) in the TME, in association with tumor growth suppression. After therapeutic vaccination, tumors displayed increased prevalence of activated VCAM1(+)CD31(+) vascular endothelial cells (VECs) and CXCL10, a type-1 T cell recruiting chemokine, in concert with increased levels of type-1 CD8(+) tumor-infiltrating lymphocytes (TIL). Vaccination against DLK1 also yielded (i) dramatic reductions in Jarid1B(+), CD133(+), and CD44(+) (hypoxia-responsive) stromal cell populations, (ii) enhanced tumor cell apoptosis, and (iii) increased NOTCH signaling in the TME. Coadministration of a γ-secretase inhibitor (N-[N-(3,5-Difluorophenacetyl-l-alanyl)]-(S)-phenylglycine t-butyl ester (DAPT)) that interferes with canonical NOTCH signaling resulted in the partial loss of therapeutic benefits associated with lentivirus encoding full-length murine (lvDLK1)-based vaccination.
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12
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Barik S, Banerjee S, Mallick A, Goswami KK, Roy S, Bose A, Baral R. Normalization of tumor microenvironment by neem leaf glycoprotein potentiates effector T cell functions and therapeutically intervenes in the growth of mouse sarcoma. PLoS One 2013; 8:e66501. [PMID: 23785504 PMCID: PMC3681973 DOI: 10.1371/journal.pone.0066501] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2013] [Accepted: 05/06/2013] [Indexed: 11/18/2022] Open
Abstract
We have observed restriction of the murine sarcoma growth by therapeutic intervention of neem leaf glycoprotein (NLGP). In order to evaluate the mechanism of tumor growth restriction, here, we have analyzed tumor microenvironment (TME) from sarcoma bearing mice with NLGP therapy (NLGP-TME, in comparison to PBS-TME). Analysis of cytokine milieu within TME revealed IL-10, TGFβ, IL-6 rich type 2 characters was switched to type 1 microenvironment with dominance of IFNγ secretion within NLGP-TME. Proportion of CD8(+) T cells was increased within NLGP-TME and these T cells were protected from TME-induced anergy by NLGP, as indicated by higher expression of pNFAT and inhibit related downstream signaling. Moreover, low expression of FasR(+) cells within CD8(+) T cell population denotes prevention from activation induced cell death. Using CFSE as a probe, better migration of T cells was noted within TME from NLGP treated mice than PBS cohort. CD8(+) T cells isolated from NLGP-TME exhibited greater cytotoxicity to sarcoma cells in vitro and these cells show higher expression of cytotoxicity related molecules, perforin and granzyme B. Adoptive transfer of NLGP-TME exposed T cells, but not PBS-TME exposed cells in mice, is able to significantly inhibit the growth of sarcoma in vivo. Such tumor growth inhibition by NLGP-TME exposed T cells was not observed when mice were depleted for CD8(+) T cells. Accumulated evidences strongly suggest NLGP mediated normalization of TME allows T cells to perform optimally to inhibit the tumor growth.
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Affiliation(s)
- Subhasis Barik
- Department of Immunoregulation and Immunodiagnostics, Chittaranjan National Cancer Institute (CNCI); Kolkata, India
| | - Saptak Banerjee
- Department of Immunoregulation and Immunodiagnostics, Chittaranjan National Cancer Institute (CNCI); Kolkata, India
| | - Atanu Mallick
- Department of Immunoregulation and Immunodiagnostics, Chittaranjan National Cancer Institute (CNCI); Kolkata, India
| | - Kuntal Kanti Goswami
- Department of Immunoregulation and Immunodiagnostics, Chittaranjan National Cancer Institute (CNCI); Kolkata, India
| | - Soumyabrata Roy
- Department of Immunoregulation and Immunodiagnostics, Chittaranjan National Cancer Institute (CNCI); Kolkata, India
| | - Anamika Bose
- Department of Molecular Medicine, Bose Institute, C.I.T. Scheme, Kolkata, India
| | - Rathindranath Baral
- Department of Immunoregulation and Immunodiagnostics, Chittaranjan National Cancer Institute (CNCI); Kolkata, India
- * E-mail:
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Combined vaccine+axitinib therapy yields superior antitumor efficacy in a murine melanoma model. Melanoma Res 2012; 22:236-43. [PMID: 22504156 DOI: 10.1097/cmr.0b013e3283538293] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Axitinib, a tyrosine kinase inhibitor of vascular endothelial growth factor receptors, has demonstrated modest efficacy when applied as a single agent in the setting of advanced-stage melanoma. On the basis of the reported ability of axitinib to 'normalize' the tumor vasculature, we hypothesize that combination therapy using axitinib plus specific peptide-based vaccination would promote superior activation and recruitment of protective T cells into the melanoma microenvironment, leading to enhanced treatment benefit. Using a subcutaneous M05 (B16.OVA) melanoma model, we observed that a treatment regimen consisting of a 7-day course of axitinib (0.5 mg/day provided orally) combined with a subcutaneous vaccine [ovalbumin (OVA) peptide-pulsed syngenic dendritic cells adenovirally engineered to produce IL-12p70] yielded superior protection against melanoma growth and extended overall survival when compared with animals receiving either single modality therapy. Treatment benefits were associated with: (a) a reduction in suppressor cell (myeloid-derived suppressor cells and Treg) populations in the tumor, (b) activation of tumor vascular endothelial cells, and (c) activation and recruitment of type-1, vaccine-induced CD8 T cells into tumors. These results support the therapeutic superiority of combined vaccine+axitinib immunotherapy and the translation of such approaches into the clinic for the treatment of patients with advanced-stage melanoma.
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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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Combined Tbet and IL12 gene therapy elicits and recruits superior antitumor immunity in vivo. Mol Ther 2012; 20:644-51. [PMID: 22215017 DOI: 10.1038/mt.2011.283] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
We have recently shown that intratumor (i.t.) injection of syngenic dendritic cells (DC) engineered to express the transcription factor Tbet (TBX21) promotes protective type-1 T cell-mediated immunity via a mechanism that is largely interleukin (IL)-12p70-independent. Since IL-12 is a classical promoter of type-1 immunity, the current study was undertaken to determine whether gene therapy using combined Tbet and IL-12 complementary DNA (cDNA) would yield improved antitumor efficacy based on the complementary/synergistic action of these biologic modifiers. Mice bearing established subcutaneous (s.c.) tumors injected with DC concomitantly expressing ectopic Tbet and IL12 (i.e., DC.Tbet/IL12) displayed superior (i) rates of tumor rejection and extended overall survival, (ii) cross-priming of Tc1 reactive against antigens expressed within the tumor microenvironment, and (iii) infiltration of CD8(+) T cells into treated tumors in association with elevated locoregional production of CXCR3 ligand chemokines. In established bilateral tumor models, i.t. delivery of DC.Tbet/IL12 into a single lesion led to slowed growth or regression at both tumor sites. Furthermore, DC.Tbet/IL12 pulsed with tumor antigen-derived peptides and injected as a therapy distal to the tumor site prevented tumor growth and activated robust antigen-specific Tc1 responses. These data support the translation use of combined Tbet and IL-12p70 gene therapy in the cancer setting.
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Chakraborty T, Bose A, Barik S, Goswami KK, Banerjee S, Goswami S, Ghosh D, Roy S, Chakraborty K, Sarkar K, Baral R. Neem leaf glycoprotein inhibits CD4+CD25+Foxp3+ Tregs to restrict murine tumor growth. Immunotherapy 2011; 3:949-69. [DOI: 10.2217/imt.11.81] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Background: The presence of Tregs in tumors is associated with compromised tumor-specific immune responses and has a clear negative impact on survival of cancer patients. Thus, downregulation of Tregs is considered as a promising cancer immunotherapeutic approach. We have reported previously that neem leaf glycoprotein (NLGP) prophylaxis restricts tumor growth in mice by immune activation. In continuation, here, involvement of NLGP in the modulation of Tregs in association with tumor growth restriction is investigated. Results: NLGP downregulates CD4+CD25+Foxp3+ Tregs within tumors. NLGP-mediated downregulation of CCR4 along with its ligand CCL22 restricts Treg migration at the tumor site. NLGP is not apoptotic to Tregs but significantly downregulates the expression of Foxp3, CTLA4 and GITR. It also reverses the functional impairment of T-effector cells by Tregs, in terms of IFN-γ secretion, cellular proliferation and tumor cell cytotoxicity. NLGP also facilitates reconditioning of tumor microenvironment (hostile) by increasing IFN-γ and IL-12 but decreasing IL-10, TGF-β, VEGF and IDO, creating an antitumor niche. Interaction between Foxp3, p-NFATc3 and p-Smad2/3, needed for successful Treg function, is also inhibited by NLGP. Conclusion: All of these coordinated events might result in inhibition of Treg associated-tumor growth and therefore increased survivability of mice having NLGP treatment before or/and after tumor inoculation. Thus, the possibility of NLGP being an excellent tool as a T-cell anergy breaker by abrogating the suppressor functions of Tregs in cancer needs to be explored further in the clinic.
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Affiliation(s)
- Tathagata Chakraborty
- Department of Immunoregulation & Immunodiagnostics, Chittaranjan National Cancer Institute (CNCI), 37, SP Mukherjee Road, Kolkata 700026, India
| | - Anamika Bose
- Department of Molecular Medicine, Bose Institute, CIT Scheme, Kolkata, India
| | - Subhasis Barik
- Department of Immunoregulation & Immunodiagnostics, Chittaranjan National Cancer Institute (CNCI), 37, SP Mukherjee Road, Kolkata 700026, India
| | - Kuntal Kanti Goswami
- Department of Immunoregulation & Immunodiagnostics, Chittaranjan National Cancer Institute (CNCI), 37, SP Mukherjee Road, Kolkata 700026, India
| | - Saptak Banerjee
- Department of Immunoregulation & Immunodiagnostics, Chittaranjan National Cancer Institute (CNCI), 37, SP Mukherjee Road, Kolkata 700026, India
| | - Shyamal Goswami
- Department of Immunoregulation & Immunodiagnostics, Chittaranjan National Cancer Institute (CNCI), 37, SP Mukherjee Road, Kolkata 700026, India
| | - Diptendu Ghosh
- Department of Immunoregulation & Immunodiagnostics, Chittaranjan National Cancer Institute (CNCI), 37, SP Mukherjee Road, Kolkata 700026, India
| | - Soumyabrata Roy
- Department of Immunoregulation & Immunodiagnostics, Chittaranjan National Cancer Institute (CNCI), 37, SP Mukherjee Road, Kolkata 700026, India
| | | | - Koustav Sarkar
- Children’s Hospital of Pittsburgh of UPMC, Pittsburgh, PA, USA
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Qu Y, Taylor JL, Bose A, Storkus WJ. Therapeutic effectiveness of intratumorally delivered dendritic cells engineered to express the pro-inflammatory cytokine, interleukin (IL)-32. Cancer Gene Ther 2011; 18:663-73. [PMID: 21760628 PMCID: PMC3348582 DOI: 10.1038/cgt.2011.37] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Interleukin-32 (IL-32) is a pro-inflammatory cytokine conditionally produced by T cells, natural killer (NK) cells, monocytes, epithelial cells and keratinocytes, which has an important role in host resistance against infectious disease. Interestingly, elevated levels of IL-32 transcripts in fine needle aspirates of tumor tissue have also been correlated with objective clinical responses in cancer patients receiving immunotherapy. To evaluate the antitumor impact of IL-32 gene therapy, we treated BALB/c mice bearing established subcutaneous CMS4 sarcomas with intratumoral (i.t.) injections of syngenic dendritic cells (DCs) engineered to express human IL-32β complementary DNA (that is, DC.IL32). Although ectopic expression of IL-32β by DC resulted in only modest phenotypic changes in these antigen-presenting cells, DC.IL32 produced higher levels of IL-12p70 than control DC. DC.IL32 were more potent activators of type-1 T-cell responses in vitro and in vivo, with i.t. administration of DC.IL32 leading to the CD8(+) T-cell-dependent (but CD4(+) T-cell- and NK cell-independent) suppression of tumor growth. Effective DC.IL32-based therapy promoted infiltration of tumors by type-1 (that is, CXCR3(+)VLA-4(+)GrB(+)) CD8(+) T cells and CD11b(+)CD11c(+) host myeloid DC, but led to reductions in the prevalence of CD11b(+)Gr1(+) myeloid-derived suppressor cells and CD31(+) blood vessels.
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Affiliation(s)
- Y Qu
- Department of Dermatology, University of Pittsburgh School of Medicine, PA, USA
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18
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Bose A, Taylor JL, Alber S, Watkins SC, Garcia JA, Rini BI, Ko JS, Cohen PA, Finke JH, Storkus WJ. Sunitinib facilitates the activation and recruitment of therapeutic anti-tumor immunity in concert with specific vaccination. Int J Cancer 2011; 129:2158-70. [PMID: 21170961 DOI: 10.1002/ijc.25863] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2010] [Accepted: 12/06/2010] [Indexed: 12/21/2022]
Abstract
The multikinase inhibitor sunitinib malate (SUT) has been reported to reduce levels of myeloid suppressor cells and Treg cells in cancer patients, hypothetically diminishing intrinsic impediments for active immunization against tumor-associated antigens in such individuals. The goal of this study was to identify longitudinal immune molecular and cellular changes associated with tumor regression and disease-free status after the treatment of established day 7 s.c. MO5 (B16.OVA) melanomas with SUT alone (1 mg/day via oral gavage for 7 days), vaccination using ovalbumin (OVA) peptide-pulsed dendritic cell [vaccine (VAC)] alone, or the combination of SUT and VAC (SUT/VAC). We observed superior anti-tumor efficacy for SUT/VAC combination approaches, particularly when SUT was applied at the time of the initial vaccination or the VAC boost. Treatment effectiveness was associated with the acute loss of (and/or failure to recruit) cells bearing myeloid-derived suppressor cells or Treg phenotypes within the tumor microenvironment (TME) and the corollary, prolonged enhancement of Type-1 anti-OVA CD8(+) T cell responses in the tumor-draining lymph node and the TME. Enhanced Type-1 T cell infiltration of tumors was associated with treatment-induced expression of vascular cell adhesion molecule-1 (VCAM-1) and CXCR3 ligand chemokines in vascular/peri-vascular cells within the TME, with SUT/VAC therapy benefits conditionally negated upon adminsitration of CXCR3 or VCAM-1 blocking antibodies. These data support the ability of a short 7 day course of SUT to (re)condition the TME to become more receptive to the recruitment and prolonged therapeutic action of (VAC-induced) anti-tumor Tc1 cells.
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Affiliation(s)
- Anamika Bose
- Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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Intratumoral IL-12 gene therapy results in the crosspriming of Tc1 cells reactive against tumor-associated stromal antigens. Mol Ther 2010; 19:805-14. [PMID: 21189473 DOI: 10.1038/mt.2010.295] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
HLA-A2 transgenic mice bearing established HLA-A2(neg) B16 melanomas were effectively treated by intratumoral (i.t.) injection of syngeneic dendritic cells (DCs) transduced to express high levels of interleukin (IL)-12, resulting in CD8(+) T cell-dependent antitumor protection. In this model, HLA-A2-restricted CD8(+) T cells do not directly recognize tumor cells and therapeutic benefit was associated with the crosspriming of HLA-A2-restricted type-1 CD8(+) T cells reactive against antigens expressed by stromal cells [i.e., pericytes and vascular endothelial cells (VEC)]. IL-12 gene therapy-induced CD8(+) T cells directly recognized HLA-A2(+) pericytes and VEC flow-sorted from B16 tumor lesions based on interferon (IFN)-γ secretion and translocation of the lytic granule-associated molecule CD107 to the T cell surface after coculture with these target cells. In contrast, these CD8(+) T effector cells failed to recognize pericytes/VEC isolated from the kidneys of tumor-bearing HHD mice. The tumor-associated stromal antigen (TASA)-derived peptides studied are evolutionarily conserved and could be recognized by CD8(+) T cells harvested from the blood of HLA-A2(+) normal donors or melanoma patients after in vitro stimulation. These TASA and their derivative peptides may prove useful in vaccine formulations against solid cancers, as well as, in the immune monitoring of HLA-A2(+) cancer patients receiving therapeutic interventions, such as IL-12 gene therapy.
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Ito M, Suzuki H, Sagawa Y, Homma S. The identification of a novel Paneth cell-associated antigen in a familial adenomatous polyposis mouse model. Biochem Biophys Res Commun 2010; 400:548-53. [PMID: 20804739 DOI: 10.1016/j.bbrc.2010.08.096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2010] [Accepted: 08/20/2010] [Indexed: 11/27/2022]
Abstract
Wnt signaling is important for the differentiation of the Paneth cell lineage in the small intestine. However, abnormal Wnt signaling predisposes to intestinal tumorigenesis in the familial adenomatous polyposis (FAP) mouse model. Vaccination with dendritic cells fused with tumor cells from FAP mice, in which Wnt signaling is constitutively activated, induced humoral immunity and suppressed intestinal tumor development. We identified the novel antigen Apa1 (Adenomatous polyposis antigen 1) recognized by antibodies in vaccinated mouse serum. Apa1 was localized in the Paneth cell-like tumor cells showing cytoplasmic β-catenin accumulation and also in normal Paneth cells at the bottom of the crypts. Phospholipase A2 (Pla2g2a), known to act as an anti-bacterial agent and a major suppressor of intestinal tumors, was also expressed in the Paneth cells. These results suggest that Apa1 might be involved in anti-microbial defense and could influence tumor development in FAP mice via modulation of commensal microbiota.
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Affiliation(s)
- Masaki Ito
- Department of Oncology, Institute of DNA Medicine, The Jikei University School of Medicine, 3-25-8, Nishi-shinbashi, Minato-ku, Tokyo 105-8461, Japan.
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Qu Y, Chen L, Pardee AD, Taylor JL, Wesa AK, Storkus WJ. Intralesional delivery of dendritic cells engineered to express T-bet promotes protective type 1 immunity and the normalization of the tumor microenvironment. THE JOURNAL OF IMMUNOLOGY 2010; 185:2895-902. [PMID: 20675595 DOI: 10.4049/jimmunol.1001294] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
T-bet (Tbx21), a T-box transcription factor, has been previously identified as a master regulator of type 1 T cell polarization. We have also recently shown that the genetic engineering of human dendritic cells (DCs) to express human T-bet cDNA yields type 1-polarizing APCs in vitro (1). In the present study, murine CD11c(+) DCs were transduced with a recombinant adenovirus encoding full-length murine T-bets (DC.mTbets) and analyzed for their immunomodulatory functions in vitro and in vivo. Within the range of markers analyzed, DC.mTbets exhibited a control DC phenotype and were indistinguishable from control DCs in their ability to promote allogenic T cell proliferation in MLR in vitro. However, DC.mTbets were superior to control DCs in promoting Th1 and Tc1 responses in vitro via a mechanism requiring DC-T cell interaction or the close proximity of these two cell types and that can only partially be explained by the action of DC-elaborated IL-12p70. When injected into day 7 s.c. CMS4 sarcoma lesions growing in syngenic BALB/c mice, DC.mTbets dramatically slowed tumor progression (versus control DCs) and extended overall survival via a mechanism dependent on both CD4(+) and CD8(+) T cells and, to a lesser extent, asialoGM1(+) NK cells. DC.mTbet-based therapy also promoted superior tumor-specific Tc1 responses in the spleens and tumor-draining lymph nodes of treated animals, and within the tumor microenvironment it inhibited the accumulation of CD11b(+)Gr1(+) myeloid-derived suppressor cells and normalized CD31(+) vascular structures. These findings support the potential translational utility of DC.Tbets as a therapeutic modality in the cancer setting.
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Affiliation(s)
- Yanyan Qu
- Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
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