1
|
Ganjoo S, Gupta P, Corbali HI, Nanez S, Riad TS, Duong LK, Barsoumian HB, Masrorpour F, Jiang H, Welsh JW, Cortez MA. The role of tumor metabolism in modulating T-Cell activity and in optimizing immunotherapy. Front Immunol 2023; 14:1172931. [PMID: 37180129 PMCID: PMC10169689 DOI: 10.3389/fimmu.2023.1172931] [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: 02/24/2023] [Accepted: 04/13/2023] [Indexed: 05/15/2023] Open
Abstract
Immunotherapy has revolutionized cancer treatment and revitalized efforts to harness the power of the immune system to combat a variety of cancer types more effectively. However, low clinical response rates and differences in outcomes due to variations in the immune landscape among patients with cancer continue to be major limitations to immunotherapy. Recent efforts to improve responses to immunotherapy have focused on targeting cellular metabolism, as the metabolic characteristics of cancer cells can directly influence the activity and metabolism of immune cells, particularly T cells. Although the metabolic pathways of various cancer cells and T cells have been extensively reviewed, the intersections among these pathways, and their potential use as targets for improving responses to immune-checkpoint blockade therapies, are not completely understood. This review focuses on the interplay between tumor metabolites and T-cell dysfunction as well as the relationship between several T-cell metabolic patterns and T-cell activity/function in tumor immunology. Understanding these relationships could offer new avenues for improving responses to immunotherapy on a metabolic basis.
Collapse
Affiliation(s)
- Shonik Ganjoo
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Priti Gupta
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Halil Ibrahim Corbali
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
- Department of Medical Pharmacology, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Türkiye
| | - Selene Nanez
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Thomas S. Riad
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Lisa K. Duong
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Hampartsoum B. Barsoumian
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Fatemeh Masrorpour
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Hong Jiang
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - James W. Welsh
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Maria Angelica Cortez
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| |
Collapse
|
2
|
Reprogramming T-Cell Metabolism for Better Anti-Tumor Immunity. Cells 2022; 11:cells11193103. [PMID: 36231064 PMCID: PMC9562038 DOI: 10.3390/cells11193103] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/09/2022] [Accepted: 09/28/2022] [Indexed: 11/17/2022] Open
Abstract
T cells play central roles in the anti-tumor immunity, whose activation and differentiation are profoundly regulated by intrinsic metabolic reprogramming. Emerging evidence has revealed that metabolic processes of T cells are generally altered by tumor cells or tumor released factors, leading to crippled anti-tumor immunity. Therefore, better understanding of T cell metabolic mechanism is crucial in developing the next generation of T cell-based anti-tumor immunotherapeutics. In this review, we discuss how metabolic pathways affect T cells to exert their anti-tumor effects and how to remodel the metabolic programs to improve T cell-mediated anti-tumor immune responses. We emphasize that glycolysis, carboxylic acid cycle, fatty acid oxidation, cholesterol metabolism, amino acid metabolism, and nucleotide metabolism work together to tune tumor-reactive T-cell activation and proliferation.
Collapse
|
3
|
Zhang Z, Yao S, Hu Y, Zhao X, Lee RJ. Application of lipid-based nanoparticles in cancer immunotherapy. Front Immunol 2022; 13:967505. [PMID: 36003395 PMCID: PMC9393708 DOI: 10.3389/fimmu.2022.967505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 07/19/2022] [Indexed: 11/13/2022] Open
Abstract
Immunotherapy is revolutionizing the clinical management of patients with different cancer types by sensitizing autologous or allogenic immune cells to the tumor microenvironment which eventually leads to tumor cell lysis without rapidly killing normal cells. Although immunotherapy has been widely demonstrated to be superior to chemotherapies, only a few populations of patients with specific cancer types respond to such treatment due to the failure of systemic immune activation. In addition, severe immune-related adverse events are rapidly observed when patients with very few responses are given higher doses of such therapies. Recent advances of lipid-based nanoparticles (NPs) development have made it possible to deliver not only small molecules but also mRNAs to achieve systemic anticancer immunity through cytotoxic immune cell activation, checkpoint blockade, and chimeric antigen receptor cell therapies, etc. This review summarized recent development and applications of LNPs in anticancer immunotherapy. The diversity of lipid-based NPs would encapsulate payloads with different structures and molecular weights to achieve optimal antitumor immunity through multiple mechanisms of action. The discussion about the components of lipid-based NPs and their immunologic payloads in this review hopefully shed more light on the future direction of anticancer immunotherapy.
Collapse
Affiliation(s)
- Zhongkun Zhang
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH, United States
| | - Siyu Yao
- Department of Food Science and Technology, The Ohio State University, Columbus, OH, United States
| | - Yingwen Hu
- The Whiteoak Group, Inc., Rockville, MD, United States
| | - Xiaobin Zhao
- The Whiteoak Group, Inc., Rockville, MD, United States
| | - Robert J. Lee
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH, United States
| |
Collapse
|
4
|
Johnson RL, Cummings M, Thangavelu A, Theophilou G, de Jong D, Orsi NM. Barriers to Immunotherapy in Ovarian Cancer: Metabolic, Genomic, and Immune Perturbations in the Tumour Microenvironment. Cancers (Basel) 2021; 13:6231. [PMID: 34944851 PMCID: PMC8699358 DOI: 10.3390/cancers13246231] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 12/03/2021] [Accepted: 12/07/2021] [Indexed: 02/07/2023] Open
Abstract
A lack of explicit early clinical signs and effective screening measures mean that ovarian cancer (OC) often presents as advanced, incurable disease. While conventional treatment combines maximal cytoreductive surgery and platinum-based chemotherapy, patients frequently develop chemoresistance and disease recurrence. The clinical application of immune checkpoint blockade (ICB) aims to restore anti-cancer T-cell function in the tumour microenvironment (TME). Disappointingly, even though tumour infiltrating lymphocytes are associated with superior survival in OC, ICB has offered limited therapeutic benefits. Herein, we discuss specific TME features that prevent ICB from reaching its full potential, focussing in particular on the challenges created by immune, genomic and metabolic alterations. We explore both recent and current therapeutic strategies aiming to overcome these hurdles, including the synergistic effect of combination treatments with immune-based strategies and review the status quo of current clinical trials aiming to maximise the success of immunotherapy in OC.
Collapse
Affiliation(s)
- Racheal Louise Johnson
- Department Gynaecological Oncology, St. James’s University Hospital, Leeds LS9 7TF, UK; (A.T.); (G.T.); (D.d.J.)
| | - Michele Cummings
- Leeds Institute of Medical Research, St. James’s University Hospital, Leeds LS9 7TF, UK; (M.C.); (N.M.O.)
| | - Amudha Thangavelu
- Department Gynaecological Oncology, St. James’s University Hospital, Leeds LS9 7TF, UK; (A.T.); (G.T.); (D.d.J.)
| | - Georgios Theophilou
- Department Gynaecological Oncology, St. James’s University Hospital, Leeds LS9 7TF, UK; (A.T.); (G.T.); (D.d.J.)
| | - Diederick de Jong
- Department Gynaecological Oncology, St. James’s University Hospital, Leeds LS9 7TF, UK; (A.T.); (G.T.); (D.d.J.)
| | - Nicolas Michel Orsi
- Leeds Institute of Medical Research, St. James’s University Hospital, Leeds LS9 7TF, UK; (M.C.); (N.M.O.)
| |
Collapse
|
5
|
Huang MS, Hsu YL, Yeh IJ, Liu KT, Yen MC. The Expression Profile of mRNA and tRNA Genes in Splenocytes and Neutrophils after In Vivo Delivery of Antitumor Short Hairpin RNA of Indoleamine 2,3- Dioxygenase. Int J Mol Sci 2020; 21:ijms21186703. [PMID: 32933162 PMCID: PMC7555719 DOI: 10.3390/ijms21186703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 09/03/2020] [Accepted: 09/11/2020] [Indexed: 11/16/2022] Open
Abstract
RNA-based therapeutics are considered as novel treatments for human diseases. Our previous study demonstrated that treatment with short-hairpin RNA against Ido1 (IDO shRNA) suppresses tumor growth, detects Th1-bias immune responses, and elevates expression of tryptophan transfer RNA (tRNATrp) in total splenocytes. In addition, depletion of Ly6g+ neutrophils attenuates the effect of IDO shRNA. The aim of this study was to investigate the regulatory network and the expression profile of tRNAs and other non-coding RNAs in IDO shRNA-treated spleens. The total splenocytes and magnetic bead-enriched splenic neutrophils were collected from the lung tumor bearing mice, which were treated with IDO shRNA or scramble IDO shRNA, and the collected cells were subsequently subjected to RNA sequencing. The gene ontology analysis revealed the different enrichment pathways in total splenocytes and splenic neutrophils. Furthermore, the expression of tRNA genes was identified and validated. Six isoacceptors of tRNA, with different expression patterns between total splenocytes and splenic neutrophils, were observed. In summary, our findings not only revealed novel biological processes in IDO shRNA-treated total splenocytes and splenic neutrophils, but the identified tRNAs and other non-coding RNAs may contribute to developing a novel biomarker gene set for evaluating the clinical efficiency of RNA-based cancer immunotherapies.
Collapse
MESH Headings
- Animals
- Antineoplastic Agents/administration & dosage
- Biomarkers, Tumor/genetics
- Cell Line, Tumor
- Female
- Gene Expression Regulation/drug effects
- Gene Expression Regulation/genetics
- Gene Ontology
- Indoleamine-Pyrrole 2,3,-Dioxygenase/administration & dosage
- Indoleamine-Pyrrole 2,3,-Dioxygenase/genetics
- Lung Neoplasms/genetics
- Mice
- Mice, Inbred C57BL
- Neutrophils/drug effects
- Neutrophils/physiology
- RNA, Messenger/genetics
- RNA, Small Interfering/administration & dosage
- RNA, Small Interfering/genetics
- RNA, Transfer/genetics
- Spleen/drug effects
- Spleen/physiology
Collapse
Affiliation(s)
- Ming-Shyan Huang
- Department of Internal Medicine, E-DA Cancer Hospital, Kaohsiung 840, Taiwan;
- School of Medicine, I-Shou University, Kaohsiung 840, Taiwan
| | - Ya-Ling Hsu
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan;
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
- Center for Biomarkers and Biotech Drugs, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - I-Jeng Yeh
- Department of Emergency Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (I.-J.Y.); (K.-T.L.)
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Kuan-Ting Liu
- Department of Emergency Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (I.-J.Y.); (K.-T.L.)
- School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Meng-Chi Yen
- Department of Emergency Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (I.-J.Y.); (K.-T.L.)
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Correspondence: ; Tel.: +886-7-312-1101 (ext. 2015)
| |
Collapse
|
6
|
Hossain MA, Liu G, Dai B, Si Y, Yang Q, Wazir J, Birnbaumer L, Yang Y. Reinvigorating exhausted CD8 + cytotoxic T lymphocytes in the tumor microenvironment and current strategies in cancer immunotherapy. Med Res Rev 2020; 41:156-201. [PMID: 32844499 DOI: 10.1002/med.21727] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 06/26/2020] [Accepted: 08/11/2020] [Indexed: 02/06/2023]
Abstract
Immunotherapy has revolutionized the treatment of cancer in recent years and achieved overall success and long-term clinical benefit in patients with a wide variety of cancer types. However, there is still a large proportion of patients exhibiting limited or no responses to immunotherapeutic strategy, some of which were even observed with hyperprogressive disease. One major obstacle restricting the efficacy is that tumor-reactive CD8+ T cells, which are central for tumor control, undergo exhaustion, and lose their ability to eliminate cancer cells after infiltrating into the strongly immunosuppressive tumor microenvironment. Thus, as a potential therapeutic rationale in the development of cancer immunotherapy, targeting or reinvigorating exhausted CD8+ T cells has been attracting much interest. Hitherto, both intrinsic and extrinsic mechanisms that govern CD8+ T-cell exhaustion have been explored. Specifically, the transcriptional and epigenetic landscapes have been depicted utilizing single-cell RNA sequencing or mass cytometry (CyTOF). In addition, cellular metabolism dictating the tumor-infiltrating CD8+ T-cell fate is currently under investigation. A series of clinical trials are being carried out to further establish the current strategies targeting CD8+ T-cell exhaustion. Taken together, despite the proven benefit of immunotherapy in cancer patients, additional efforts are still needed to fully circumvent limitations of exhausted T cells in the treatment. In this review, we will focus on the current cellular and molecular understanding of metabolic changes, epigenetic remodeling, and transcriptional regulation in CD8+ T-cell exhaustion and describe hypothetical treatment approaches based on immunotherapy aiming at reinvigorating exhausted CD8+ T cells.
Collapse
Affiliation(s)
- Md Amir Hossain
- Center for New Drug Safety Evaluation and Research, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Guilai Liu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Beiying Dai
- Center for New Drug Safety Evaluation and Research, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Yaxuan Si
- Center for New Drug Safety Evaluation and Research, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Qitao Yang
- Center for New Drug Safety Evaluation and Research, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Junaid Wazir
- Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Lutz Birnbaumer
- Neurobiology Laboratory, National Institute of Environmental Health Sciences, Durham, North Carolina, USA.,Institute of Biomedical Research (BIOMED), Catholic University of Argentina, Buenos Aires, Argentina
| | - Yong Yang
- Center for New Drug Safety Evaluation and Research, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu, China.,Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, China
| |
Collapse
|
7
|
Navigating metabolic pathways to enhance antitumour immunity and immunotherapy. Nat Rev Clin Oncol 2019; 16:425-441. [DOI: 10.1038/s41571-019-0203-7] [Citation(s) in RCA: 279] [Impact Index Per Article: 55.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
8
|
Domblides C, Lartigue L, Faustin B. Control of the Antitumor Immune Response by Cancer Metabolism. Cells 2019; 8:cells8020104. [PMID: 30708988 PMCID: PMC6406288 DOI: 10.3390/cells8020104] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 01/25/2019] [Accepted: 01/28/2019] [Indexed: 12/12/2022] Open
Abstract
The metabolic reprogramming of tumor cells and immune escape are two major hallmarks of cancer cells. The metabolic changes that occur during tumorigenesis, enabling survival and proliferation, are described for both solid and hematological malignancies. Concurrently, tumor cells have deployed mechanisms to escape immune cell recognition and destruction. Additionally, therapeutic blocking of tumor-mediated immunosuppression has proven to have an unprecedented positive impact in clinical oncology. Increased evidence suggests that cancer metabolism not only plays a crucial role in cancer signaling for sustaining tumorigenesis and survival, but also has wider implications in the regulation of antitumor immune signaling through both the release of signaling molecules and the expression of immune membrane ligands. Here, we review these molecular events to highlight the contribution of cancer cell metabolic reprogramming on the shaping of the antitumor immune response.
Collapse
Affiliation(s)
- Charlotte Domblides
- Bordeaux University, CNRS, UMR 5164, ImmunoConcEpT, 33000 Bordeaux, France.
- Department of Medical Oncology, Hôpital Saint-André, Bordeaux University Hospital-CHU, 33000 Bordeaux, France.
| | - Lydia Lartigue
- Curematch, Inc., 6440 Lusk Bvld, San Diego, CA 92121, USA.
| | - Benjamin Faustin
- Bordeaux University, CNRS, UMR 5164, ImmunoConcEpT, 33000 Bordeaux, France.
- Cellomet, CGFB, 146 Rue léo Saignat, F-33000 Bordeaux, France.
| |
Collapse
|
9
|
Liu YH, Yeh IJ, Lai MD, Liu KT, Kuo PL, Yen MC. Cancer Immunotherapy: Silencing Intracellular Negative Immune Regulators of Dendritic Cells. Cancers (Basel) 2019; 11:cancers11010108. [PMID: 30658461 PMCID: PMC6357062 DOI: 10.3390/cancers11010108] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 01/09/2019] [Accepted: 01/13/2019] [Indexed: 01/26/2023] Open
Abstract
Dendritic cells (DCs) are capable of activating adaptive immune responses, or inducing immune suppression or tolerance. In the tumor microenvironment, the function of DCs is polarized into immune suppression that attenuates the effect of T cells, promoting differentiation of regulatory T cells and supporting tumor progression. Therefore, blocking negative immune regulators in DCs is considered a strategy of cancer immunotherapy. Antibodies can target molecules on the cell surface, but not intracellular molecules of DCs. The delivery of short-hairpin RNAs (shRNA) and small-interfering RNAs (siRNA) should be a strategy to silence specific intracellular targets in DCs. This review provides an overview of the known negative immune regulators of DCs. Moreover, a combination of shRNA/siRNA and DC vaccines, DNA vaccines in animal models, and clinical trials are also discussed.
Collapse
Affiliation(s)
- Yao-Hua Liu
- Department of Emergency Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - I-Jeng Yeh
- Department of Emergency Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Ming-Derg Lai
- Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
| | - Kuan-Ting Liu
- Department of Emergency Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Po-Lin Kuo
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Meng-Chi Yen
- Department of Emergency Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| |
Collapse
|
10
|
Kouidhi S, Ben Ayed F, Benammar Elgaaied A. Targeting Tumor Metabolism: A New Challenge to Improve Immunotherapy. Front Immunol 2018; 9:353. [PMID: 29527212 PMCID: PMC5829092 DOI: 10.3389/fimmu.2018.00353] [Citation(s) in RCA: 129] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 02/07/2018] [Indexed: 12/22/2022] Open
Abstract
Currently, a marked number of clinical trials on cancer treatment have revealed the success of immunomodulatory therapies based on immune checkpoint inhibitors that activate tumor-specific T cells. However, the therapeutic efficacy of cancer immunotherapies is only restricted to a small fraction of patients. A deeper understanding of key mechanisms generating an immunosuppressive tumor microenvironment (TME) remains a major challenge for more effective antitumor immunity. There is a growing evidence that the TME supports inappropriate metabolic reprogramming that dampens T cell function, and therefore impacts the antitumor immune response and tumor progression. Notably, the immunosuppressive TME is characterized by a lack of crucial carbon sources critical for T cell function and increased inhibitory signals. Here, we summarize the basics of intrinsic and extrinsic metabolic remodeling and metabolic checkpoints underlying the competition between cancer and infiltrating immune cells for nutrients and metabolites. Intriguingly, the upregulation of tumor programmed death-L1 and cytotoxic T lymphocyte-associated antigen 4 alters the metabolic programme of T cells and drives their exhaustion. In this context, targeting both tumor and T cell metabolism can beneficially enhance or temper immunity in an inhospitable microenvironment and markedly improve the success of immunotherapies.
Collapse
Affiliation(s)
- Soumaya Kouidhi
- Laboratory BVBGR, LR11ES31, Higher Institute of Biotechnology of Sidi Thabet (ISBST), Department of Biotechnology, University of Manouba, Sidi Thabet, Tunisia
- Laboratory of Genetics, Immunology and Human Pathology, Faculty of Sciences of Tunis, Department of Biology, University Tunis El Manar, Tunis, Tunisia
| | - Farhat Ben Ayed
- Association Tunisienne de Lutte contre le Cancer (ATCC), Tunis, Tunisia
| | - Amel Benammar Elgaaied
- Laboratory of Genetics, Immunology and Human Pathology, Faculty of Sciences of Tunis, Department of Biology, University Tunis El Manar, Tunis, Tunisia
| |
Collapse
|
11
|
Griglio A, Torre E, Serafini M, Bianchi A, Schmid R, Coda Zabetta G, Massarotti A, Sorba G, Pirali T, Fallarini S. A multicomponent approach in the discovery of indoleamine 2,3-dioxygenase 1 inhibitors: Synthesis, biological investigation and docking studies. Bioorg Med Chem Lett 2018; 28:651-657. [PMID: 29398544 DOI: 10.1016/j.bmcl.2018.01.032] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 01/16/2018] [Accepted: 01/17/2018] [Indexed: 01/24/2023]
Abstract
Indoleamine 2,3-dioxygenase plays a crucial role in immune tolerance and has emerged as an attractive target for cancer immunotherapy. In this study, the Passerini and Ugi multicomponent reactions have been employed to assemble a small library of imidazothiazoles that target IDO1. While the p-bromophenyl and the imidazothiazole moieties have been kept fixed, a full SAR study has been performed on the side-chain, leading to the discovery of nine compounds with sub-micromolar IC50 values in the enzyme-based assay. Compound 7d, displaying a α-acyloxyamide substructure, is the most potent compound, with an IC50 value of 0.20 µM, but a low activity in a cell-based assay. Compound 6o, containing a α-acylaminoamide moiety, shows an IC50 value of 0.81 µM in the IDO1-based assay, a full biocompatibility at 10 µM, together with a modest inhibitory activity in A375 cells. Molecular docking studies show that both 7d and 6o display a unique binding mode in the IDO1 active site, with the side-chain protruding in an additional pocket C, where a crucial hydrogen bond is formed with Lys238. Overall, this work describes an isocyanide based-multicomponent approach as a straightforward and versatile tool to rapidly access IDO1 inhibitors, providing a new direction for their future design and development.
Collapse
Affiliation(s)
- Alessia Griglio
- Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale, Largo Donegani 2, Novara 28100, Italy
| | - Enza Torre
- Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale, Largo Donegani 2, Novara 28100, Italy
| | - Marta Serafini
- Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale, Largo Donegani 2, Novara 28100, Italy
| | - Alice Bianchi
- Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale, Largo Donegani 2, Novara 28100, Italy
| | - Roberta Schmid
- Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale, Largo Donegani 2, Novara 28100, Italy
| | - Giulia Coda Zabetta
- Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale, Largo Donegani 2, Novara 28100, Italy
| | - Alberto Massarotti
- Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale, Largo Donegani 2, Novara 28100, Italy
| | - Giovanni Sorba
- Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale, Largo Donegani 2, Novara 28100, Italy
| | - Tracey Pirali
- Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale, Largo Donegani 2, Novara 28100, Italy.
| | - Silvia Fallarini
- Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale, Largo Donegani 2, Novara 28100, Italy
| |
Collapse
|
12
|
Interference RNA in immune-mediated oral diseases - minireview. Cent Eur J Immunol 2017; 42:301-304. [PMID: 29204096 PMCID: PMC5708212 DOI: 10.5114/ceji.2017.70974] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 08/16/2016] [Indexed: 01/01/2023] Open
Abstract
Immune-mediated oral disorders are characterised by their chronicity, and some are refractory to treatment. Interference RNA (iRNA) has been implicated in the underlying mechanism of such immune-mediate oral and refractory inflammatory oral diseases. iRNA-based understanding of the mechanism in these diseases may help to produce non-invasive diagnostic methodologies and treatment modalities of such drug non-responsive diseases. Oral lesions in these immune-mediated diseases can precede the occurrence of lesions in other regions of the body. The early diagnosis and treatment of these drug non-responsive diseases might benefit the patient by reducing chronicity and probably even resolving the disease. This aim of the present minireview is to give an overview of the possible implications of iRNA on the pathogenesis, diagnosis, and treatments of immune-mediated and inflammatory oral diseases. The manuscript can form the framework for research on iRNA in these immune-mediated oral disorders.
Collapse
|
13
|
Weng TY, Li CJ, Li CY, Hung YH, Yen MC, Chang YW, Chen YH, Chen YL, Hsu HP, Chang JY, Lai MD. Skin Delivery of Clec4a Small Hairpin RNA Elicited an Effective Antitumor Response by Enhancing CD8 + Immunity In Vivo. MOLECULAR THERAPY. NUCLEIC ACIDS 2017; 9:419-427. [PMID: 29246320 PMCID: PMC5701806 DOI: 10.1016/j.omtn.2017.10.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 10/21/2017] [Accepted: 10/22/2017] [Indexed: 12/01/2022]
Abstract
Clec4a has been reported to be an immune suppressor of dendritic cells (DCs), but its potential role in cancer therapy remains to be elucidated. The present study investigated whether downregulating the expression of Clec4a via skin delivery of small hairpin RNA (shRNA) using a gene gun produced stronger host immunity and inhibited tumor progression in animal models. Administration of Clec4a2 shRNA delayed tumor growth in both mouse bladder and lung tumor-bearing mouse models. The result was further confirmed with a compensation experiment showing that the antitumor effects induced by Clec4a2 shRNA were restored by co-injection of a plasmid expressing exogenous Clec4a2. Increased numbers of infiltrating CD4+ and CD8+ T cells at tumor sites were observed in mice treated with Clec4a2 shRNA. Splenocytes from mice with Clec4a2 shRNA administration exhibited stronger cytotoxic activity compared with splenocytes from control mice. CD8-deletion in vivo abrogated the antitumor effects elicited by Clec4a2 shRNA. Additionally, shClec4a enhanced the antitumor effects of the Neu DNA vaccine in the MBT-2 tumor model. In summary, the findings provide evidence that silencing of Clec4a2 expression via skin delivery of shRNA produces an effective antitumor response and that Clec4a2 shRNA may have therapeutic potential as an adjuvant for cancer immunotherapy.
Collapse
Affiliation(s)
- Tzu-Yang Weng
- Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, No. 1, University Road, Tainan City 701, Taiwan; Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, No. 1, University Road, Tainan City 701, Taiwan
| | - Chia-Jung Li
- Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, No. 1, University Road, Tainan City 701, Taiwan
| | - Chung-Yen Li
- Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, No. 1, University Road, Tainan City 701, Taiwan; Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, No. 1, University Road, Tainan City 701, Taiwan
| | - Yu-Hsuan Hung
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, No. 1, University Road, Tainan City 701, Taiwan
| | - Meng-Chi Yen
- Department of Emergency Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, No. 68, Jhonghua 3rd Rd., Cianjin District, Kaohsiung City 80145, Taiwan
| | - Yu-Wei Chang
- Department of Medicine, National Cheng Kung University, No. 1, University Road, Tainan City 701, Taiwan
| | - Yu-Hung Chen
- Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, No. 1, University Road, Tainan City 701, Taiwan; Department of Medicine, National Cheng Kung University, No. 1, University Road, Tainan City 701, Taiwan
| | - Yi-Ling Chen
- Department of Senior Citizen Services Management, Chia Nan University of Pharmacy and Science, No. 60, Sec. 1, Erren Rd., Rende District, Tainan City 717, Taiwan
| | - Hui-Ping Hsu
- Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, No. 1, University Road, Tainan City 701, Taiwan
| | - Jang-Yang Chang
- National Institute of Cancer Research, National Health Research Institute, No. 367, Sheng-li Rd., North District, Tainan City 704, Taiwan
| | - Ming-Derg Lai
- Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, No. 1, University Road, Tainan City 701, Taiwan.
| |
Collapse
|
14
|
Brochez L, Chevolet I, Kruse V. The rationale of indoleamine 2,3-dioxygenase inhibition for cancer therapy. Eur J Cancer 2017; 76:167-182. [PMID: 28324751 DOI: 10.1016/j.ejca.2017.01.011] [Citation(s) in RCA: 212] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 10/24/2016] [Accepted: 01/23/2017] [Indexed: 02/06/2023]
Abstract
Indoleamine 2,3-dioxygenase (IDO, also referred to as IDO1) has been demonstrated to be a normal endogenous mechanism of acquired peripheral immune tolerance in vivo. In the field of oncology, IDO expression and/or activity has been observed in several cancer types and has usually been associated with negative prognostic factors and worse outcome measures. This manuscript reviews current available data on the role of IDO in cancer and the current results obtained with IDO inhibition, both in animal models and in phase 1 and 2 clinical trials in humans. Preliminary results with IDO inhibitors, usually combined with other anti-cancer drugs, seem encouraging. Further studies are needed to clarify the conditions in which IDO inhibitors can be of value as an anti-cancer strategy. In addition, further research should address whether the expression of IDO in tissue or blood can be a marker to select patients who can benefit most from IDO inhibition.
Collapse
Affiliation(s)
- Lieve Brochez
- Department of Dermatology, Ghent University Hospital, Belgium; Dermatology Research Unit, Ghent, Belgium; Immuno-Oncology Network Ghent (ION Ghent), Belgium; Cancer Research Institute Ghent (CRIG), Belgium.
| | - Ines Chevolet
- Department of Dermatology, Ghent University Hospital, Belgium; Dermatology Research Unit, Ghent, Belgium; Immuno-Oncology Network Ghent (ION Ghent), Belgium
| | - Vibeke Kruse
- Department of Medical Oncology, Ghent University Hospital, Belgium; Immuno-Oncology Network Ghent (ION Ghent), Belgium
| |
Collapse
|
15
|
Neutrophils are Essential in Short Hairpin RNA of Indoleamine 2,3- Dioxygenase Mediated-antitumor Efficiency. MOLECULAR THERAPY-NUCLEIC ACIDS 2016; 5:e397. [PMID: 27922590 PMCID: PMC5159481 DOI: 10.1038/mtna.2016.105] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 11/01/2016] [Indexed: 02/08/2023]
Abstract
Indoleamine 2,3-dioxygenase (IDO) is a rate limiting enzyme in tryptophan-degrading pathways and IDO activity results in immune suppression. Targeting IDO is a strategy of cancer immunotherapies. Our previous studies demonstrate that delivery of short hairpin against IDO (IDO shRNA) suppresses tumor growth and increases neutrophils infiltration into tumor. Neutrophils reveal antitumorigenic “N1” or protumorigenic “N2” phenotype in tumor microenvironment. However, the function of IDO shRNA-induced neutrophils is not clear. The LLC1 lung cancer model was used to investigate the role of these neutrophils. Intramuscular injection of IDO shRNA or IDO inhibitor treatment delayed tumor growth and both treatments increased neutrophil infiltration in tumor. Enriched tumor-infiltrating neutrophils expressed both high level of tumor necrosis factor-α and tumor necrosis factor-β (N1 and N2 associated molecules, respectively). In addition, IDO shRNA treatment induced interferon-γ and tryptophan transfer RNA expression in splenocytes. Systematic depletion of neutrophils abolished the IDO shRNA-induced therapeutic effect but did not affect the effect of IDO inhibitor. The levels of interferon-γ and tumor necrosis factor-α were suppressed in IDO shRNA treatment splenocytes after neutrophils depletion. In conclusion, these tumor-infiltrating neutrophils show antitumorigenic phenotype in spleen after IDO shRNA treatment in a murine lung cancer model.
Collapse
|
16
|
Abstract
IDO1 (indoleamine 2,3-dioxygenase 1) is a member of a unique class of mammalian haem dioxygenases that catalyse the oxidative catabolism of the least-abundant essential amino acid, L-Trp (L-tryptophan), along the kynurenine pathway. Significant increases in knowledge have been recently gained with respect to understanding the fundamental biochemistry of IDO1 including its catalytic reaction mechanism, the scope of enzyme reactions it catalyses, the biochemical mechanisms controlling IDO1 expression and enzyme activity, and the discovery of enzyme inhibitors. Major advances in understanding the roles of IDO1 in physiology and disease have also been realised. IDO1 is recognised as a prominent immune regulatory enzyme capable of modulating immune cell activation status and phenotype via several molecular mechanisms including enzyme-dependent deprivation of L-Trp and its conversion into the aryl hydrocarbon receptor ligand kynurenine and other bioactive kynurenine pathway metabolites, or non-enzymatic cell signalling actions involving tyrosine phosphorylation of IDO1. Through these different modes of biochemical signalling, IDO1 regulates certain physiological functions (e.g. pregnancy) and modulates the pathogenesis and severity of diverse conditions including chronic inflammation, infectious disease, allergic and autoimmune disorders, transplantation, neuropathology and cancer. In the present review, we detail the current understanding of IDO1’s catalytic actions and the biochemical mechanisms regulating IDO1 expression and activity. We also discuss the biological functions of IDO1 with a focus on the enzyme's immune-modulatory function, its medical implications in diverse pathological settings and its utility as a therapeutic target.
Collapse
|
17
|
Chevolet I, Speeckaert R, Haspeslagh M, Neyns B, Krüse V, Schreuer M, Van Gele M, Van Geel N, Brochez L. Peritumoral indoleamine 2,3-dioxygenase expression in melanoma: an early marker of resistance to immune control? Br J Dermatol 2014; 171:987-95. [PMID: 24814041 DOI: 10.1111/bjd.13100] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/29/2014] [Indexed: 12/15/2022]
Abstract
BACKGROUND Indoleamine 2,3-dioxygenase (IDO) is an emerging immunomodulating factor in cancer. IDO expression in tumour-negative sentinel lymph nodes (SLNs) of patients with melanoma has a negative prognostic value. OBJECTIVES To analyse the expression pattern of IDO and associated immunological changes in corresponding primary melanomas (PMs), SLNs and metastases. METHODS In 120 patients with melanoma, PMs with corresponding SLNs (n = 85) and metastases (n = 18) were analysed by immunohistochemical staining for IDO and FoxP3. Tumour-infiltrating lymphocytes (TILs) were scored. IDO expression in stimulated peripheral blood mononuclear cells (PBMCs) was analysed in 27 patients. RESULTS IDO expression in the sentinel node strongly correlated with endothelial IDO expression in the peritumoral stroma of the corresponding primary (P < 0·001) and metastatic melanoma (P < 0·05). Sentinel IDO positivity was inversely correlated with CD8+ lymphocytes (P = 0·01) and TILs (P = 0·05) in PM. Both IDO expression in the sentinel (P < 0·01) and the PM (P = 0·04) had a negative prognostic effect on overall survival, independent of Breslow thickness, sex, age, ulceration and sentinel invasion. IDO expression by PBMCs after stimulation with cytotoxic T-lymphocyte antigen 4 was not correlated with sentinel IDO expression but tended to correlate with disease stage (P = 0·04). CONCLUSIONS Endothelial IDO expression is highly consistent in primary, sentinel and metastatic tissues of patients with melanoma, indicating that immune suppression in melanoma is determined very early in the disease course. This supports that IDO expression in melanoma is a marker of antitumour immune response with an independent prognostic value.
Collapse
Affiliation(s)
- I Chevolet
- Department of Dermatology, Ghent University Hospital, De Pintelaan 185, Ghent, 9000, Belgium
| | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Weng TY, Yen MC, Huang CT, Hung JJ, Chen YL, Chen WC, Wang CY, Chang JY, Lai MD. DNA vaccine elicits an efficient antitumor response by targeting the mutant Kras in a transgenic mouse lung cancer model. Gene Ther 2014; 21:888-96. [PMID: 25077772 DOI: 10.1038/gt.2014.67] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Revised: 04/09/2014] [Accepted: 06/17/2014] [Indexed: 12/22/2022]
Abstract
Mutant Kras (V-Ki-ras2 Kirsten rat sarcoma viral oncogene homolog) is observed in more than 20% of non-small-cell lung cancers; however, no effective Kras target therapy is available at present. The Kras DNA vaccine may represent as a novel immunotherapeutic agent in lung cancer. In this study, we investigated the antitumor efficacy of the Kras DNA vaccine in a genetically engineered inducible mouse lung tumor model driven by Kras(G12D). Lung tumors were induced by doxycycline, and the therapeutic effects of Kras DNA vaccine were evaluated with delivery of Kras(G12D) plasmids. Mutant Kras(G12D) DNA vaccine significantly decreased the tumor nodules. A dominant-negative mutant Kras(G12D)N17, devoid of oncogenic activity, achieved similar therapeutic effects. The T-helper 1 immune response was enhanced in mice treated with Kras DNA vaccine. Splenocytes from mice receiving Kras DNA vaccine presented an antigen-specific response by treatment with peptides of Kras but not Hras or OVA. The number of tumor-infiltrating CD8(+) T cells increased after Kras vaccination. In contrast, Kras DNA vaccine was not effective in the lung tumor in transgenic mice, which was induced by mutant L858R epidermal growth factor receptor. Overall, these results indicate that Kras DNA vaccine produces an effective antitumor response in transgenic mice, and may be useful in treating lung cancer-carrying Ras mutation.
Collapse
Affiliation(s)
- T-Y Weng
- 1] Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, Tainan, Taiwan, ROC [2] Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan, ROC
| | - M-C Yen
- 1] Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, Tainan, Taiwan, ROC [2] Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan, ROC [3] Center for Infectious Diseases and Signal Research, National Cheng Kung University, Tainan, Taiwan, ROC
| | - C-T Huang
- Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, Tainan, Taiwan, ROC
| | - J-J Hung
- Institute of Bioinformatics and Biosignal Transduction, College of Life Science, National Cheng Kung University, Tainan, Taiwan, ROC
| | - Y-L Chen
- Department of Senior Citizen Services Management, Chia Nan University of Pharmacy and Science, Tainan, Taiwan, ROC
| | - W-C Chen
- 1] Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, Tainan, Taiwan, ROC [2] Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan, ROC
| | - C-Y Wang
- 1] Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, Tainan, Taiwan, ROC [2] Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan, ROC
| | - J-Y Chang
- National Institute of Cancer Research, National Health Research Institute, Tainan, Taiwan, ROC
| | - M-D Lai
- 1] Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, Tainan, Taiwan, ROC [2] Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan, ROC [3] Center for Infectious Diseases and Signal Research, National Cheng Kung University, Tainan, Taiwan, ROC
| |
Collapse
|
19
|
Wang XF, Wang HS, Wang H, Zhang F, Wang KF, Guo Q, Zhang G, Cai SH, Du J. The role of indoleamine 2,3-dioxygenase (IDO) in immune tolerance: Focus on macrophage polarization of THP-1 cells. Cell Immunol 2014; 289:42-8. [DOI: 10.1016/j.cellimm.2014.02.005] [Citation(s) in RCA: 110] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Revised: 02/23/2014] [Accepted: 02/26/2014] [Indexed: 01/15/2023]
|
20
|
Mittal D, Kassianos AJ, Tran LS, Bergot AS, Gosmann C, Hofmann J, Blumenthal A, Leggatt GR, Frazer IH. Indoleamine 2,3-dioxygenase activity contributes to local immune suppression in the skin expressing human papillomavirus oncoprotein e7. J Invest Dermatol 2013; 133:2686-2694. [PMID: 23652797 PMCID: PMC3779505 DOI: 10.1038/jid.2013.222] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Revised: 03/25/2013] [Accepted: 04/16/2013] [Indexed: 12/20/2022]
Abstract
Chronic infection of anogenital epithelium with human papillomavirus (HPV) promotes development of cancer. Many pathogens evoke immunosuppressive mechanisms to enable persistent infection. We have previously shown that grafted skin expressing HPV16 E7 oncoprotein from a keratin-14 promoter (K14E7) is not rejected by a syngeneic, immunocompetent host. In this study we show that indoleamine 2,3-dioxygenase (IDO) 1, an IFN-γ-inducible immunoregulatory molecule, is more highly expressed by langerin(-ve) dermal dendritic cells (DCs) from K14E7 skin than nontransgenic control skin. Furthermore, inhibiting IDO activity using 1-methyl-dl-tryptophan (1-D/L-MT) promotes K14E7 skin graft rejection. Increased IDO1 expression and activity in K14E7 skin requires IFN-γ and invariant natural killer T (iNKT) cells, both of which have been shown to negatively regulate T-cell effector function and suppress K14E7 graft rejection. Furthermore, DCs from K14E7 skin express higher levels of IFN-γ receptor (IFN-γR) than DCs from control skin. K14E7 transgenic skin recruits significantly higher numbers of DCs, independent of IFN-γ and IFN-γR expression. Consistent with these observations in a murine model, we found higher expression of IDO1 and IFN-γ but not IDO2 in the cervical epithelium of patients with HPV-associated cervical intraepithelial neoplasia (CIN) 2/3. Our data support a hypothesis that induction of IDO1 in HPV-infected skin contributes to evasion of host immunity.
Collapse
Affiliation(s)
- Deepak Mittal
- The University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, Queensland, Australia
| | - Andrew J Kassianos
- Kidney Research Laboratory, Queensland Health/Queensland Institute of Medical Research, Brisbane,Queensland, Australia
| | - Lee S Tran
- The University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, Queensland, Australia
| | - Anne-Sophie Bergot
- The University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, Queensland, Australia
| | - Christine Gosmann
- The University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, Queensland, Australia
| | - Janin Hofmann
- The University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, Queensland, Australia
| | - Antje Blumenthal
- The University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, Queensland, Australia; Australian Infectious Diseases Research Centre, University of Queensland, Brisbane, Queensland, Australia
| | - Graham R Leggatt
- The University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, Queensland, Australia
| | - Ian H Frazer
- The University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, Queensland, Australia.
| |
Collapse
|
21
|
The correlation between the subsets of tumor infiltrating memory T cells and the expression of indoleamine 2,3-dioxygenase in gastric cancer. Dig Dis Sci 2013; 58:3494-502. [PMID: 23979437 DOI: 10.1007/s10620-013-2837-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2013] [Accepted: 08/02/2013] [Indexed: 12/09/2022]
Abstract
BACKGROUNDS Although many researchers have concentrated on the mechanism of T cell anergy resulting from over-expression of Indoleamine 2,3-dioxygenase (IDO), it remains unclear what alterations will developed in memory T cells (Tm) under over-expression of IDO. METHODS Immunohistochemical staining for IDO expression in gastric cancer tissues (n=50) was carried out. Tumor-infiltrating memory Tm cells were counted by flow cytometry. The association between IDO expression and the subsets of tumor infiltrating Tm are discussed. RESULTS The higher IDO expressions were significantly associated with deeper invasion (P=0.016) and higher frequencies (P=0.038) of lymph node metastasis. The lower tumor-infiltrating CD4+Tm were significantly associated with the advanced clinical stage (P=0.026) and lymph node metastasis (P=0.016). The lower percentages of CD8+Tm were significantly related to undifferentiated histological type (P=0.042) and lymph node metastasis (P=0.037). However, the lower percentage of CD8+Tem was significantly correlated to differentiated histological type (P=0.017), lower frequencies of lymph node metastasis (P=0.014), and earlier clinical stage (P=0.008). The higher IDO expression patients had significantly lower percentages of CD4+Tm (P=0.012) and CD8+Tm (P=0.033). Nevertheless, it was confirmed that the higher level of IDO expression correlated with higher percentages of CD8+Tm cells in univariate and multivariate analysis (P=0.011). CONCLUSION IDO over-expression and Tm in tumor microenvironments were correlated with the disease stage and histological type of gastric cancer. Higher IDO expression was related to the lower percentage of CD4+Tm and CD8+Tm, whereas the higher level of IDO expression related with a higher percentage of CD8+Tem.
Collapse
|
22
|
Weng TY, Huang SS, Yen MC, Lin CC, Chen YL, Lin CM, Chen WC, Wang CY, Chang JY, Lai MD. A novel cancer therapeutic using thrombospondin 1 in dendritic cells. Mol Ther 2013; 22:292-302. [PMID: 24127010 DOI: 10.1038/mt.2013.236] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Accepted: 09/27/2013] [Indexed: 12/12/2022] Open
Abstract
Induction of thrombospondin 1 (TSP-1) is generally assumed to suppress tumor growth through inhibiting angiogenesis; however, it is less clear how TSP-1 in dendritic cells (DCs) influences tumor progression. We investigated tumor growth and immune mechanism by downregulation of TSP-1 in dendritic cells. Administration of TSP-1 small hairpin RNA (shRNA) through the skin produced anticancer therapeutic effects. Tumor-infiltrating CD4(+) and CD8(+) T cells were increased after the administration of TSP-1 shRNA. The expression of interleukin-12 and interferon-γ in the lymph nodes was enhanced by injection of TSP-1 shRNA. Lymphocytes from the mice injected with TSP-1 shRNA selectively killed the tumor cells, and the cytotoxicity of lymphocytes was abolished by depletion of CD8(+) T cells. Injection of CD11c(+) TSP-1-knockout (TSP-1-KO) bone marrow-derived DCs (BMDCs) delayed tumor growth in tumor-bearing mice. Similarly, antitumor activity induced by TSP-1-KO BMDCs was abrogated by depletion of CD8(+) T cells. In contrast, the administration of shRNAs targeting TSP-2, another TSP family member, did not extend the survival of tumor-bearing mice. Finally, TSP-1 shRNA functioned as an immunotherapeutic adjuvant to augment the therapeutic efficacy of Neu DNA vaccination. Collectively, the downregulation of TSP-1 in DCs produces an effective antitumor response that is opposite to the protumor effects by silencing of TSP-1 within tumor cells.
Collapse
Affiliation(s)
- Tzu-Yang Weng
- Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Shih-Shien Huang
- Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Meng-Chi Yen
- Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Center for Infectious Diseases and Signal Research, National Cheng Kung University, Tainan, Taiwan
| | - Chi-Chen Lin
- Institute of Biomedical Sciences, College of Life Sciences, National Chung Hsing University, Taichung, Taiwan
| | - Yi-Ling Chen
- Department of Senior Citizen Services Management, Chia Nan University of Pharmacy and Science, Tainan, Taiwan
| | - Chiu-Mei Lin
- School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Wei-Ching Chen
- Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chih-Yang Wang
- Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Jang-Yang Chang
- National Institute of Cancer Research, National Health Research Institute, Tainan, Taiwan
| | - Ming-Derg Lai
- Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Center for Infectious Diseases and Signal Research, National Cheng Kung University, Tainan, Taiwan.
| |
Collapse
|
23
|
An HDAC inhibitor enhances cancer therapeutic efficiency of RNA polymerase III promoter-driven IDO shRNA. Cancer Gene Ther 2013; 20:351-7. [PMID: 23681283 DOI: 10.1038/cgt.2013.27] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Histone deacetylase (HDAC) inhibitors are used in treating certain human malignancies. Our laboratories demonstrated their capability in enhancing antitumor effect of DNA vaccine driven by an RNA polymerase II (RNA pol II) promoter. However, it is unknown whether HDAC inhibitors enhance the therapeutic short hairpin RNA (shRNA) expressed by an RNA polymerase III (RNA pol III) promoter. We investigated whether HDAC inhibitors augmented antitumor effect of indoleamine 2,3 dioxygenase (IDO) shRNA. HDAC inhibitor OSU-HDAC42 and suberoylanilide hydroxamic acid enhanced RNA pol III-driven U6 and H1 promoter activity in three different cell types in vitro: 293, NIH3T3 and dendritic cell line DC2.4. Subcutaneous injection of OSU-HDAC42 enhanced U6 and H1 promoter activity on abdominal skin of mice in vivo. Combination of IDO shRNA and OSU-HDAC42 increased antitumor effect of IDO shRNA in MBT-2 murine bladder tumor model. IDO shRNA induced tumor-infiltrating CD8⁺ and CD4⁺ T cells, whereas OSU-HDAC42 treatment induced tumor-infiltrating CD4⁺ T cells. Combination of OSU-HDAC42 and IDO shRNA further induced tumor-infiltrating natural killer cells and enhanced interferon-γ in lymphocytes, but suppressed interleukin (IL)-4 expression of lymphocytes. In addition, OSU-HDAC42 treatment did not alter mRNA expression of IL-12 and tumor necrosis factor-α. In conclusion, HDAC inhibitor OSU-HDAC42 may serve as adjuvant of the therapeutic shRNA expressed by an RNA pol III promoter.
Collapse
|
24
|
Abstract
Immunotherapeutic approaches have been gaining attention in the field of cancer treatment because of their possible ability to eradicate cancer cells as well as metastases by recruiting the host immune system. On the other hand, RNA-based therapeutics with the ability to silence expression of specific targets are currently under clinical investigation for various disorders including cancer. As the mechanisms of tumor evasion from the host immune system are versatile, different molecules have the capacity to be targeted by RNAi technology in order to enhance the immune response against tumors. This technology has been used to silence specific targets in tumor cells, as well as immune cells in cancer cell lines, animal models and clinical trials. siRNAs can also stimulate innate immune responses through activation of Toll-like receptors. Although currently clinical trials of the application of siRNA in cancer immunotherapy are few, it is predicted that in future this technology will be used broadly in cancer treatment.
Collapse
Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | | |
Collapse
|
25
|
Harden JL, Egilmez NK. Indoleamine 2,3-dioxygenase and dendritic cell tolerogenicity. Immunol Invest 2013; 41:738-64. [PMID: 23017144 DOI: 10.3109/08820139.2012.676122] [Citation(s) in RCA: 126] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
This article summarizes the molecular and cellular mechanisms that regulate the activity of indoleamine 2,3-dioxygenase (IDO), a potent immune-suppressive enzyme, in dendritic cells (DCs). Specific attention is given to differential up-regulation of IDO in distinct DC subsets, its function in immune homeostasis/autoimmunity, infection and cancer; and the associated immunological outcomes. The review will conclude with a discussion of the poorly defined mechanisms that mediate the long-term maintenance of IDO-expression in response to inflammatory stimuli and how selective modulation of IDO activity may be used in the treatment of disease.
Collapse
Affiliation(s)
- Jamie L Harden
- The State University of New York at Buffalo, Buffalo, New York 14214, USA.
| | | |
Collapse
|
26
|
McGaha TL, Huang L, Lemos H, Metz R, Mautino M, Prendergast GC, Mellor AL. Amino acid catabolism: a pivotal regulator of innate and adaptive immunity. Immunol Rev 2013; 249:135-57. [PMID: 22889220 DOI: 10.1111/j.1600-065x.2012.01149.x] [Citation(s) in RCA: 151] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Enhanced amino acid catabolism is a common response to inflammation, but the immunologic significance of altered amino acid consumption remains unclear. The finding that tryptophan catabolism helped maintain fetal tolerance during pregnancy provided novel insights into the significance of amino acid metabolism in controlling immunity. Recent advances in identifying molecular pathways that enhance amino acid catabolism and downstream mechanisms that affect immune cells in response to inflammatory cues support the notion that amino acid catabolism regulates innate and adaptive immune cells in pathologic settings. Cells expressing enzymes that degrade amino acids modulate antigen-presenting cell and lymphocyte functions and reveal critical roles for amino acid- and catabolite-sensing pathways in controlling gene expression, functions, and survival of immune cells. Basal amino acid catabolism may contribute to immune homeostasis that prevents autoimmunity, whereas elevated amino acid catalytic activity may reinforce immune suppression to promote tumorigenesis and persistence of some pathogens that cause chronic infections. For these reasons, there is considerable interest in generating novel drugs that inhibit or induce amino acid consumption and target downstream molecular pathways that control immunity. In this review, we summarize recent developments and highlight novel concepts and key outstanding questions in this active research field.
Collapse
Affiliation(s)
- Tracy L McGaha
- Immunotherapy Center, Georgia Health Sciences University, Augusta, GA 30912, USA.
| | | | | | | | | | | | | |
Collapse
|
27
|
Herrada AA, Rojas-Colonelli N, González-Figueroa P, Roco J, Oyarce C, Ligtenberg MA, Lladser A. Harnessing DNA-induced immune responses for improving cancer vaccines. Hum Vaccin Immunother 2012; 8:1682-93. [PMID: 23111166 DOI: 10.4161/hv.22345] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
DNA vaccines have emerged as an attractive strategy to promote protective cellular and humoral immunity against the encoded antigen. DNA vaccines are easy to generate, inexpensive to produce and purify at large-scale, highly stable and safe. In addition, plasmids used for DNA vaccines act as powerful "danger signals" by stimulating several DNA-sensing innate immune receptors that promote the induction of protective adaptive immunity. The induction of tumor-specific immune responses represents a major challenge for DNA vaccines because most of tumor-associated antigens are normal non-mutated self-antigens. As a consequence, induction of potentially self-reactive T cell responses against such poorly immunogenic antigens is controlled by mechanisms of central and peripheral tolerance as well as tumor-induced immunosuppression. Although several DNA vaccines against cancer have reached clinical testing, disappointing results have been observed. Therefore, the development of new adjuvants that strongly stimulate the induction of antitumor T cell immunity and counteract immune-suppressive regulation is an attractive approach to enhance the potency of DNA vaccines and overcome tumor-associated tolerance. Understanding the DNA-sensing signaling pathways of innate immunity that mediate the induction of T cell responses elicited by DNA vaccines represents a unique opportunity to develop novel adjuvants that enhance vaccine potency. The advance of DNA adjuvants needs to be complemented with the development of potent delivery systems, in order to step toward successful clinical application. Here, we briefly discuss recent evidence showing how to harness DNA-induced immune response to improve the potency of cancer vaccines and counteract tumor-associated tolerance.
Collapse
Affiliation(s)
- Andrés A Herrada
- Laboratory of Gene Immunotherapy, Fundación Ciencia & Vida, Santiago, Chile
| | | | | | | | | | | | | |
Collapse
|
28
|
Li L, Huang L, Lemos HP, Mautino M, Mellor AL. Altered tryptophan metabolism as a paradigm for good and bad aspects of immune privilege in chronic inflammatory diseases. Front Immunol 2012; 3:109. [PMID: 22593757 PMCID: PMC3350084 DOI: 10.3389/fimmu.2012.00109] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Accepted: 04/17/2012] [Indexed: 01/01/2023] Open
Abstract
The term "immune privilege" was coined to describe weak immunogenicity (hypo-immunity) that manifests in some transplant settings. We extended this concept to encompass hypo-immunity that manifests at local sites of inflammation relevant to clinical diseases. Here, we focus on emerging evidence that enhanced tryptophan catabolism is a key metabolic process that promotes and sustains induced immune privilege, and discuss the implications for exploiting this knowledge to improve treatments for hypo-immune and hyper-immune syndromes using strategies to manipulate tryptophan metabolism.
Collapse
Affiliation(s)
- Lingqian Li
- Immunotherapy Center, Georgia Health Sciences University Augusta, GA, USA
| | | | | | | | | |
Collapse
|