1
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Chen X, Gao Y, Zhang Y. Allogeneic CAR-T cells for cancer immunotherapy. Immunotherapy 2024; 16:1079-1090. [PMID: 39378059 DOI: 10.1080/1750743x.2024.2408048] [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: 06/17/2024] [Accepted: 09/19/2024] [Indexed: 10/19/2024] Open
Abstract
Autologous chimeric antigen receptor (CAR)-modified T (CAR-T) cell therapy has displayed high efficacy in the treatment of hematological malignancies. Up to now, 11 autologous CAR-T cell products have been approved for the management of malignancies globally. However, the application of autologous CAR-T cell therapy has many individual limitations, long time-consuming, highly cost, and the risk of manufacturing failure. Indeed, some patients would not benefit from autologous CAR-T cell products because of rapid disease progression. Allogeneic CAR-T cells especially universal CAR-T (U-CAR-T) cell therapy are superior to these challenges of autologous CAR-T cells. In this review, we describe basic study and clinical trials of U-CAR-T cell therapeutic methods for malignancies. In addition, we summarize the problems encountered and potential solutions.
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Affiliation(s)
- Xinfeng Chen
- Biotherapy Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
- Cancer Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Yaoxin Gao
- Biotherapy Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Yi Zhang
- Biotherapy Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
- Cancer Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou, Henan, 450052, China
- School of Life Sciences, Zhengzhou University, Zhengzhou, Henan, 450052, China
- Tianjian Laboratory of Advanced Biomedical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, 450052, China
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2
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Niveau C, Sosa Cuevas E, Saas P, Aspord C. Glycans in melanoma: Drivers of tumour progression but sweet targets to exploit for immunotherapy. Immunology 2024; 173:33-52. [PMID: 38742251 DOI: 10.1111/imm.13801] [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: 02/25/2024] [Accepted: 05/03/2024] [Indexed: 05/16/2024] Open
Abstract
Aberrant glycosylation recently emerged as an unmissable hallmark of cancer progression in many cancers. In melanoma, there is growing evidence that the tumour 'glycocode' plays a major role in promoting cell proliferation, invasion, migration, but also dictates the nature of the immune infiltrate, which strongly affects immune cell function, and clinical outcome. Aberrant glycosylation patterns dismantle anti-tumour defence through interactions with lectins on immune cells, which are crucial to shape anti-tumour immunity but also to trigger immune evasion. The glycan/lectin axis represents a new immune subversion pathway that is exploited by melanoma to hijack immune cells and escape from immune control. In this review, we describe the glycosylation features of melanoma tumour cells, and further gather findings related to the role of glycosylation in melanoma tumour progression, deciphering in detail its impact on immunity. We also depict glycan-based strategies aiming at restoring a functional anti-tumour response in melanoma patients. Glycans/lectins emerge as key immune checkpoints with promising translational properties. Exploitation of these pathways could reshape potent anti-tumour immunity while impeding immunosuppressive circuits triggered by aberrant tumour glycosylation patterns, holding great promise for cancer therapy.
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Affiliation(s)
- Camille Niveau
- Institute for Advanced Biosciences, Team: Epigenetics, Immunity, Metabolism, Cell Signaling & Cancer, Inserm U 1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France
- Etablissement Français du Sang Auvergne-Rhône-Alpes, R&D Laboratory, Grenoble, France
| | - Eleonora Sosa Cuevas
- Institute for Advanced Biosciences, Team: Epigenetics, Immunity, Metabolism, Cell Signaling & Cancer, Inserm U 1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France
- Etablissement Français du Sang Auvergne-Rhône-Alpes, R&D Laboratory, Grenoble, France
| | - Philippe Saas
- Institute for Advanced Biosciences, Team: Epigenetics, Immunity, Metabolism, Cell Signaling & Cancer, Inserm U 1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France
- Etablissement Français du Sang Auvergne-Rhône-Alpes, R&D Laboratory, Grenoble, France
| | - Caroline Aspord
- Institute for Advanced Biosciences, Team: Epigenetics, Immunity, Metabolism, Cell Signaling & Cancer, Inserm U 1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France
- Etablissement Français du Sang Auvergne-Rhône-Alpes, R&D Laboratory, Grenoble, France
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3
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Farhangnia P, Khorramdelazad H, Nickho H, Delbandi AA. Current and future immunotherapeutic approaches in pancreatic cancer treatment. J Hematol Oncol 2024; 17:40. [PMID: 38835055 DOI: 10.1186/s13045-024-01561-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 05/28/2024] [Indexed: 06/06/2024] Open
Abstract
Pancreatic cancer is a major cause of cancer-related death, but despondently, the outlook and prognosis for this resistant type of tumor have remained grim for a long time. Currently, it is extremely challenging to prevent or detect it early enough for effective treatment because patients rarely exhibit symptoms and there are no reliable indicators for detection. Most patients have advanced or spreading cancer that is difficult to treat, and treatments like chemotherapy and radiotherapy can only slightly prolong their life by a few months. Immunotherapy has revolutionized the treatment of pancreatic cancer, yet its effectiveness is limited by the tumor's immunosuppressive and hard-to-reach microenvironment. First, this article explains the immunosuppressive microenvironment of pancreatic cancer and highlights a wide range of immunotherapy options, including therapies involving oncolytic viruses, modified T cells (T-cell receptor [TCR]-engineered and chimeric antigen receptor [CAR] T-cell therapy), CAR natural killer cell therapy, cytokine-induced killer cells, immune checkpoint inhibitors, immunomodulators, cancer vaccines, and strategies targeting myeloid cells in the context of contemporary knowledge and future trends. Lastly, it discusses the main challenges ahead of pancreatic cancer immunotherapy.
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Affiliation(s)
- Pooya Farhangnia
- Reproductive Sciences and Technology Research Center, Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Immunology Board for Transplantation and Cell-Based Therapeutics (ImmunoTACT), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Hossein Khorramdelazad
- Department of Immunology, School of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Hamid Nickho
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Ali-Akbar Delbandi
- Reproductive Sciences and Technology Research Center, Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran.
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
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4
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Coccimiglio M, Chiodo F, van Kooyk Y. The sialic acid-Siglec immune checkpoint: an opportunity to enhance immune responses and therapy effectiveness in melanoma. Br J Dermatol 2024; 190:627-635. [PMID: 38197441 DOI: 10.1093/bjd/ljad517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 12/13/2023] [Accepted: 12/17/2023] [Indexed: 01/11/2024]
Abstract
Modulation of immune responses through immune checkpoint blockade has revolutionized cutaneous melanoma treatment. However, it is still the case that not all patients respond successfully to these therapies, indicating the presence of as yet unknown resistance mechanisms. Hence, it is crucial to find novel targets to improve therapy efficacy. One of the described resistance mechanisms is regulated by immune inhibitory Siglec receptors, which are engaged by the carbohydrates sialic acids expressed on tumour cells, contributing to programmed cell death protein-1 (PD1)-like immune suppression mechanisms. In this review, we provide an overview on the regulation of sialic acid synthesis, its expression in melanoma, and the contribution of the sialic acid-Siglec axis to tumour development and immune suppressive mechanisms in the tumour microenvironment. Finally, we highlight potential sialic acid-Siglec axis-related therapeutics to improve the treatment of melanoma.
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Affiliation(s)
- Magali Coccimiglio
- Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, Amsterdam, the Netherlands
- Cancer Center Amsterdam, Amsterdam, the Netherlands
- Amsterdam Institute for Infection and Immunity, Amsterdam, the Netherlands
| | - Fabrizio Chiodo
- Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, Amsterdam, the Netherlands
- Cancer Center Amsterdam, Amsterdam, the Netherlands
- Amsterdam Institute for Infection and Immunity, Amsterdam, the Netherlands
- Italian National Research Council, Institute of Biomolecular Chemistry, Pozzuoli, Naples, Italy
| | - Yvette van Kooyk
- Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, Amsterdam, the Netherlands
- Cancer Center Amsterdam, Amsterdam, the Netherlands
- Amsterdam Institute for Infection and Immunity, Amsterdam, the Netherlands
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5
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Ayyalasomayajula R, Cudic M. Targeting Siglec-Sialylated MUC1 Immune Axis in Cancer. Cancers (Basel) 2024; 16:1334. [PMID: 38611013 PMCID: PMC11011055 DOI: 10.3390/cancers16071334] [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: 12/31/2023] [Revised: 03/12/2024] [Accepted: 03/27/2024] [Indexed: 04/14/2024] Open
Abstract
Siglecs play a key role in mediating cell-cell interactions via the recognition of different sialylated glycoconjugates, including tumor-associated MUC1, which can lead to the activation or inhibition of the immune response. The activation occurs through the signaling of Siglecs with the cytoplasmic immunoreceptor tyrosine-based activation motif (ITAM)-containing proteins, while the inhibition signal is a result of the interaction of intracellular immunoreceptor tyrosine-based inhibition motif (ITIM)-bearing receptors. The interaction of tumor-associated MUC1 sialylated glycans with Siglecs via ITIM motifs decreases antitumor immunity. Consequently, these interactions are expected to play a key role in tumor evasion. Efforts to modulate the response of immune cells by blocking the immune-suppressive effects of inhibitory Siglecs, driving immune-activating Siglecs, and/or altering the synthesis and expression of the sialic acid glycocalyx are new therapeutic strategies deserving further investigation. We will highlight the role of Siglec's family receptors in immune evasion through interactions with glycan ligands in their natural context, presented on the protein such as MUC1, factors affecting their fine binding specificities, such as the role of multivalency either at the ligand or receptor side, their spatial organization, and finally the current and future therapeutic interventions targeting the Siglec-sialylated MUC1 immune axis in cancer.
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Affiliation(s)
| | - Mare Cudic
- Department of Chemistry and Biochemistry, Florida Atlantic University, 777 Glades Rd., Boca Raton, FL 33431, USA;
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6
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Boelaars K, van Kooyk Y. Targeting myeloid cells for cancer immunotherapy: Siglec-7/9/10/15 and their ligands. Trends Cancer 2024; 10:230-241. [PMID: 38160071 DOI: 10.1016/j.trecan.2023.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 11/17/2023] [Accepted: 11/28/2023] [Indexed: 01/03/2024]
Abstract
Advances in immunotherapy have revolutionized cancer treatment, yet many patients do not show clinical responses. While most immunotherapies target T cells, myeloid cells are the most abundant cell type in solid tumors and are key orchestrators of the immunosuppressive tumor microenvironment (TME), hampering effective T cell responses. Therefore, unraveling the immune suppressive pathways within myeloid cells could unveil new avenues for cancer immunotherapy. Over the past decade, Siglec receptors and their ligand, sialic acids, have emerged as a novel immune checkpoint on myeloid cells. In this review, we highlight key findings on how sialic acids modify immunity in the TME through engagement of Siglec-7/9/10/15 expressed on myeloid cells, and how the sialic acid-Siglec axis can be targeted for future cancer immunotherapies.
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Affiliation(s)
- Kelly Boelaars
- Amsterdam UMC location Vrije Universiteit Amsterdam, Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Institute for Infection and Immunity, De Boelelaan, 1117, Amsterdam, The Netherlands
| | - Yvette van Kooyk
- Amsterdam UMC location Vrije Universiteit Amsterdam, Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Institute for Infection and Immunity, De Boelelaan, 1117, Amsterdam, The Netherlands.
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7
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Stewart N, Daly J, Drummond-Guy O, Krishnamoorthy V, Stark JC, Riley NM, Williams KC, Bertozzi CR, Wisnovsky S. The glycoimmune checkpoint receptor Siglec-7 interacts with T-cell ligands and regulates T-cell activation. J Biol Chem 2024; 300:105579. [PMID: 38141764 PMCID: PMC10831161 DOI: 10.1016/j.jbc.2023.105579] [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: 10/27/2023] [Accepted: 11/28/2023] [Indexed: 12/25/2023] Open
Abstract
Siglec-7 (sialic acid-binding immunoglobulin-like lectin 7) is a glycan-binding immune receptor that is emerging as a significant target of interest for cancer immunotherapy. The physiological ligands that bind Siglec-7, however, remain incompletely defined. In this study, we characterized the expression of Siglec-7 ligands on peripheral immune cell subsets and assessed whether Siglec-7 functionally regulates interactions between immune cells. We found that disialyl core 1 O-glycans are the major immune ligands for Siglec-7 and that these ligands are particularly highly expressed on naïve T-cells. Densely glycosylated sialomucins are the primary carriers of these glycans, in particular a glycoform of the cell-surface marker CD43. Biosynthesis of Siglec-7-binding glycans is dynamically controlled on different immune cell subsets through a genetic circuit involving the glycosyltransferase GCNT1. Siglec-7 blockade was found to increase activation of both primary T-cells and antigen-presenting dendritic cells in vitro, indicating that Siglec-7 binds T-cell glycans to regulate intraimmune signaling. Finally, we present evidence that Siglec-7 directly activates signaling pathways in T-cells, suggesting a new biological function for this receptor. These studies conclusively demonstrate the existence of a novel Siglec-7-mediated signaling axis that physiologically regulates T-cell activity. Going forward, our findings have significant implications for the design and implementation of therapies targeting immunoregulatory Siglec receptors.
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Affiliation(s)
- Natalie Stewart
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - John Daly
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Olivia Drummond-Guy
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Vignesh Krishnamoorthy
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jessica C Stark
- Department of Chemistry & Sarafan ChEM-H, Stanford University, Stanford, California, USA; Department of Biological Engineering, Massachusetts Institute of Technology, Boston, Massachusetts, USA; Department of Chemical Engineering, Massachusetts Institute of Technology, Boston, Massachusetts, USA; Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Boston, Massachusetts, USA
| | - Nicholas M Riley
- Department of Chemistry & Sarafan ChEM-H, Stanford University, Stanford, California, USA; Department of Chemistry, University of Washington, Seattle, Washington, USA
| | - Karla C Williams
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Carolyn R Bertozzi
- Department of Chemistry & Sarafan ChEM-H, Stanford University, Stanford, California, USA; Howard Hughes Medical Institute, Stanford, California, USA
| | - Simon Wisnovsky
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia, Canada.
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8
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Feng H, Feng J, Han X, Ying Y, Lou W, Liu L, Zhang L. The Potential of Siglecs and Sialic Acids as Biomarkers and Therapeutic Targets in Tumor Immunotherapy. Cancers (Basel) 2024; 16:289. [PMID: 38254780 PMCID: PMC10813689 DOI: 10.3390/cancers16020289] [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: 11/17/2023] [Revised: 12/24/2023] [Accepted: 01/02/2024] [Indexed: 01/24/2024] Open
Abstract
The dysregulation of sialic acid is closely associated with oncogenesis and tumor progression. Most tumor cells exhibit sialic acid upregulation. Sialic acid-binding immunoglobulin-like lectins (Siglecs) are receptors that recognize sialic acid and are expressed in various immune cells. The activity of Siglecs in the tumor microenvironment promotes immune escape, mirroring the mechanisms of the well-characterized PD-1/PD-L1 pathway in cancer. Cancer cells utilize sialic acid-linked glycans to evade immune surveillance. As Siglecs exhibit similar mechanisms as the established immune checkpoint inhibitors (ICIs), they are potential therapeutic targets for different forms of cancer, especially ICI-resistant malignancies. Additionally, the upregulation of sialic acid serves as a potential tumor biomarker. This review examines the feasibility of using sialic acid and Siglecs for early malignant tumor detection and discusses the potential of targeting Siglec-sialic acid interaction as a novel cancer therapeutic strategy.
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Affiliation(s)
- Haokang Feng
- Department of Pancreatic Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China; (H.F.); (J.F.); (X.H.); (Y.Y.); (W.L.)
- Cancer Center, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Jiale Feng
- Department of Pancreatic Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China; (H.F.); (J.F.); (X.H.); (Y.Y.); (W.L.)
- Cancer Center, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Xu Han
- Department of Pancreatic Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China; (H.F.); (J.F.); (X.H.); (Y.Y.); (W.L.)
- Cancer Center, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Ying Ying
- Department of Pancreatic Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China; (H.F.); (J.F.); (X.H.); (Y.Y.); (W.L.)
- Cancer Center, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Wenhui Lou
- Department of Pancreatic Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China; (H.F.); (J.F.); (X.H.); (Y.Y.); (W.L.)
- Cancer Center, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- The Shanghai Geriatrics Medical Center, Zhongshan Hospital MinHang MeiLong Branch, Fudan University, Shanghai 200032, China
| | - Liang Liu
- Department of Pancreatic Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China; (H.F.); (J.F.); (X.H.); (Y.Y.); (W.L.)
- Cancer Center, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Lei Zhang
- Department of Pancreatic Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China; (H.F.); (J.F.); (X.H.); (Y.Y.); (W.L.)
- Cancer Center, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
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9
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Bordoloi D, Kulkarni AJ, Adeniji OS, Pampena MB, Bhojnagarwala PS, Zhao S, Ionescu C, Perales-Puchalt A, Parzych EM, Zhu X, Ali AR, Cassel J, Zhang R, Betts MR, Abdel-Mohsen M, Weiner DB. Siglec-7 glyco-immune binding mAbs or NK cell engager biologics induce potent antitumor immunity against ovarian cancers. SCIENCE ADVANCES 2023; 9:eadh4379. [PMID: 37910620 PMCID: PMC10619929 DOI: 10.1126/sciadv.adh4379] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 09/27/2023] [Indexed: 11/03/2023]
Abstract
Ovarian cancer (OC) is a lethal gynecologic malignancy, with modest responses to CPI. Engagement of additional immune arms, such as NK cells, may be of value. We focused on Siglec-7 as a surface antigen for engaging this population. Human antibodies against Siglec-7 were developed and characterized. Coculture of OC cells with PBMCs/NKs and Siglec-7 binding antibodies showed NK-mediated killing of OC lines. Anti-Siglec-7 mAb (DB7.2) enhanced survival in OC-challenged mice. In addition, the combination of DB7.2 and anti-PD-1 demonstrated further improved OC killing in vitro. To use Siglec-7 engagement as an OC-specific strategy, we engineered an NK cell engager (NKCE) to simultaneously engage NK cells through Siglec-7, and OC targets through FSHR. The NKCE demonstrated robust in vitro killing of FSHR+ OC, controlled tumors, and improved survival in OC-challenged mice. These studies support additional investigation of the Siglec-7 targeting approaches as important tools for OC and other recalcitrant cancers.
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Affiliation(s)
- Devivasha Bordoloi
- Vaccine and Immunotherapy Center, The Wistar Institute, Philadelphia, PA, USA
| | | | - Opeyemi S. Adeniji
- Vaccine and Immunotherapy Center, The Wistar Institute, Philadelphia, PA, USA
| | - M. Betina Pampena
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Shushu Zhao
- Vaccine and Immunotherapy Center, The Wistar Institute, Philadelphia, PA, USA
| | - Candice Ionescu
- Vaccine and Immunotherapy Center, The Wistar Institute, Philadelphia, PA, USA
| | | | | | - Xizhou Zhu
- Vaccine and Immunotherapy Center, The Wistar Institute, Philadelphia, PA, USA
| | - Ali R. Ali
- Vaccine and Immunotherapy Center, The Wistar Institute, Philadelphia, PA, USA
| | - Joel Cassel
- Molecular Screening and Protein Expression facility, The Wistar Institute, Philadelphia, PA, USA
| | - Rugang Zhang
- Immunology, Microenvironment and Metastasis Program, The Wistar Institute, Philadelphia, PA, USA
| | - Michael R. Betts
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | | | - David B. Weiner
- Vaccine and Immunotherapy Center, The Wistar Institute, Philadelphia, PA, USA
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10
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Ye Z, Wang Y, Xiang B, Wang H, Tao H, Zhang C, Zhang S, Sun D, Luo F, Song L. Roles of the Siglec family in bone and bone homeostasis. Biomed Pharmacother 2023; 165:115064. [PMID: 37413904 DOI: 10.1016/j.biopha.2023.115064] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 06/23/2023] [Accepted: 06/23/2023] [Indexed: 07/08/2023] Open
Abstract
Tremendous progress has been seen in the study of the role of sialic acid binding im-munoglobulin type lectins (Siglecs) in osteoimmunology in the past two decades. Interest in Siglecs as immune checkpoints has grown from the recognition that Siglecs have relevance to human disease. Siglecs play important roles in inflammation and cancer, and play key roles in immune cell signaling. By recognizing common sialic acid containing glycans on glycoproteins and glycolipids as regulatory receptors for immune cell signals, Siglecs are expressed on most immune cells and play important roles in normal homeostasis and self-tolerance. In this review, we describe the role that the siglec family plays in bone and bone homeostasis, including the regulation of osteoclast differentiation as well as recent advances in inflammation, cancer and osteoporosis. Particular emphasis is placed on the relevant functions of Siglecs in self-tolerance and as pattern recognition receptors in immune responses, thereby potentially providing emerging strategies for the treatment of bone related diseases.
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Affiliation(s)
- Zi Ye
- The Fourth Corps of Students of the Basic Medical College, Army Medical University, Chongqing 400037, China
| | - Yetong Wang
- The Fourth Corps of Students of the Basic Medical College, Army Medical University, Chongqing 400037, China
| | - Binqing Xiang
- Department of Surgical Anesthesia, First Affiliated Hospital, Army Medical University, Chongqing 400038, China
| | - Heng Wang
- Army Border Defense 331st Brigade, Dandong 118000, China
| | - Haiyan Tao
- Health Management Center, First Affiliated Hospital, Army Medical University, Chongqing 400038, China
| | - Chengmin Zhang
- Department of Orthopaedics, First Affiliated Hospital, Army Medical University, Chongqing 400038, China
| | - Shuai Zhang
- Department of Orthopaedics, First Affiliated Hospital, Army Medical University, Chongqing 400038, China
| | - Dong Sun
- Department of Orthopaedics, First Affiliated Hospital, Army Medical University, Chongqing 400038, China.
| | - Fei Luo
- Department of Orthopaedics, First Affiliated Hospital, Army Medical University, Chongqing 400038, China.
| | - Lei Song
- Department of Orthopaedics, First Affiliated Hospital, Army Medical University, Chongqing 400038, China.
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11
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Franke AK, Wessolowski C, Thaden V, Müller I, Cornils K. Glyco-binding domain chimeric antigen receptors as a new option for cancer immunotherapy. Gene Ther 2023; 30:603-611. [PMID: 36529796 PMCID: PMC10457195 DOI: 10.1038/s41434-022-00374-x] [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: 03/04/2022] [Revised: 10/11/2022] [Accepted: 11/08/2022] [Indexed: 12/23/2022]
Abstract
In the last decade, treatment using Chimeric Antigen Receptor (CAR) are largely studied and demonstrate the potential of immunotherapeutic strategies, as seen mainly for blood related cancers. Still, efficient CAR-T cell approaches especially for the treatment of solid tumors are needed. Tn- and Sialyl-Tn antigens are tumor associated carbohydrate antigens correlating with poor prognosis and tumor metastasis on a variety of tumor entities. These glycans can be recognized by CD301 (CLEC10A, MGL), which is a surface receptor found primarily on immune cells. In the present study, we hypothesized, that it is possible to use newly generated CD301-bearing CARs, enabling cytotoxic effector cells to recognize and eliminate breast cancer cells. Thus, we genetically modified human NK92 cells with different chimeric receptors based on the carbohydrate recognition domain (CRD) of human CD301. We assessed their cytotoxic activity in vitro demonstrating the specific recognition of CD301 ligand positive cell lines. These results were confirmed by degranulation assays and in cytokine release assays. Overall, this study demonstrates CD301-CARs represent a cost-effective and fast alternative to conventional scFv CARs for cancer immunotherapy.
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Affiliation(s)
| | | | - Vanessa Thaden
- Research Institute Children's Cancer Center Hamburg, Hamburg, Germany
| | - Ingo Müller
- Research Institute Children's Cancer Center Hamburg, Hamburg, Germany
- Department of Pediatric Hematology and Oncology, Division of Pediatric Stem Cell Transplantation and Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Kerstin Cornils
- Research Institute Children's Cancer Center Hamburg, Hamburg, Germany
- Department of Pediatric Hematology and Oncology, Division of Pediatric Stem Cell Transplantation and Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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12
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Chi K, Xu H, Li H, Yang G, Zhou X, Gao XD. Expression of a Siglec-Fc Protein and Its Characterization. BIOLOGY 2023; 12:biology12040574. [PMID: 37106774 PMCID: PMC10135921 DOI: 10.3390/biology12040574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 03/31/2023] [Accepted: 04/03/2023] [Indexed: 04/29/2023]
Abstract
The emerging importance of the Siglec-sialic acid axis in human disease, especially cancer, has necessitated the identification of ligands for Siglecs. Recombinant Siglec-Fc fusion proteins have been widely used as ligand detectors, and also as sialic acid-targeted antibody-like proteins for cancer treatment. However, the heterogenetic properties of the Siglec-Fc fusion proteins prepared from various expression systems have not been fully elucidated. In this study, we selected HEK293 and CHO cells for producing Siglec9-Fc and further evaluated the properties of the products. The protein yield in CHO (8.23 mg/L) was slightly higher than that in HEK293 (7.46 mg/L). The Siglec9-Fc possesses five N-glycosylation sites and one of them is located in its Fc domain, which is important for the quality control of protein production and also the immunogenicity of Siglec-Fc. Our glycol-analysis confirmed that the recombinant protein from HEK293 received more fucosylation, while CHO showed more sialylation. Both products revealed a high dimerization ratio and sialic acid binding activity, which was confirmed by the staining of cancer cell lines and bladder cancer tissue. Finally, our Siglec9-Fc product was used to analyze the potential ligands on cancer cell lines.
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Affiliation(s)
- Kaijun Chi
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Huilin Xu
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Hanjie Li
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Ganglong Yang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiaoman Zhou
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Xiao-Dong Gao
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
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13
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Fernandes Â, Azevedo CM, Silva MC, Faria G, Dantas CS, Vicente MM, Pinho SS. Glycans as shapers of tumour microenvironment: A sweet driver of T-cell-mediated anti-tumour immune response. Immunology 2023; 168:217-232. [PMID: 35574724 DOI: 10.1111/imm.13494] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 04/22/2022] [Indexed: 01/17/2023] Open
Abstract
Essentially all cells are covered with a dense coat of different glycan structures/sugar chains, giving rise to the so-called glycocalyx. Changes in cellular glycosylation are a hallmark of cancer, affecting most of the pathophysiological processes associated with malignant transformation, including tumour immune responses. Glycans are chief macromolecules that define T-cell development, differentiation, fate, activation and signalling. Thus, the diversity of glycans expressed at the surface of T cells constitutes a fundamental molecular interface with the microenvironment by regulating the bilateral interactions between T-cells and cancer cells, fine-tuning the anti-tumour immune response. In this review, we will introduce the power of glycans as orchestrators of T-cell-mediated immune response in physiological conditions and in cancer. We discuss how glycans modulate the glyco-metabolic landscape in the tumour microenvironment, and whether glycans can synergize with immunotherapy as a way of rewiring T-cell effector functions against cancer cells.
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Affiliation(s)
- Ângela Fernandes
- Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal
| | - Catarina M Azevedo
- Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal.,School of Medicine and Biological Sciences (ICBAS), University of Porto, Porto, Portugal
| | - Mariana C Silva
- Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal.,School of Medicine and Biological Sciences (ICBAS), University of Porto, Porto, Portugal
| | - Guilherme Faria
- Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal.,Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Carolina S Dantas
- Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal.,School of Medicine and Biological Sciences (ICBAS), University of Porto, Porto, Portugal
| | - Manuel M Vicente
- Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal.,School of Medicine and Biological Sciences (ICBAS), University of Porto, Porto, Portugal
| | - Salomé S Pinho
- Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal.,School of Medicine and Biological Sciences (ICBAS), University of Porto, Porto, Portugal.,Faculty of Medicine, University of Porto, Porto, Portugal
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14
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Maalej KM, Merhi M, Inchakalody VP, Mestiri S, Alam M, Maccalli C, Cherif H, Uddin S, Steinhoff M, Marincola FM, Dermime S. CAR-cell therapy in the era of solid tumor treatment: current challenges and emerging therapeutic advances. Mol Cancer 2023; 22:20. [PMID: 36717905 PMCID: PMC9885707 DOI: 10.1186/s12943-023-01723-z] [Citation(s) in RCA: 129] [Impact Index Per Article: 129.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 01/16/2023] [Indexed: 01/31/2023] Open
Abstract
In the last decade, Chimeric Antigen Receptor (CAR)-T cell therapy has emerged as a promising immunotherapeutic approach to fight cancers. This approach consists of genetically engineered immune cells expressing a surface receptor, called CAR, that specifically targets antigens expressed on the surface of tumor cells. In hematological malignancies like leukemias, myeloma, and non-Hodgkin B-cell lymphomas, adoptive CAR-T cell therapy has shown efficacy in treating chemotherapy refractory patients. However, the value of this therapy remains inconclusive in the context of solid tumors and is restrained by several obstacles including limited tumor trafficking and infiltration, the presence of an immunosuppressive tumor microenvironment, as well as adverse events associated with such therapy. Recently, CAR-Natural Killer (CAR-NK) and CAR-macrophages (CAR-M) were introduced as a complement/alternative to CAR-T cell therapy for solid tumors. CAR-NK cells could be a favorable substitute for CAR-T cells since they do not require HLA compatibility and have limited toxicity. Additionally, CAR-NK cells might be generated in large scale from several sources which would suggest them as promising off-the-shelf product. CAR-M immunotherapy with its capabilities of phagocytosis, tumor-antigen presentation, and broad tumor infiltration, is currently being investigated. Here, we discuss the emerging role of CAR-T, CAR-NK, and CAR-M cells in solid tumors. We also highlight the advantages and drawbacks of CAR-NK and CAR-M cells compared to CAR-T cells. Finally, we suggest prospective solutions such as potential combination therapies to enhance the efficacy of CAR-cells immunotherapy.
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Affiliation(s)
- Karama Makni Maalej
- grid.413548.f0000 0004 0571 546XTranslational Cancer Research Facility, National Center for Cancer Care and Research, Translational Research Institute, Hamad Medical Corporation, P.O. Box: 3050, Doha, Qatar
| | - Maysaloun Merhi
- grid.413548.f0000 0004 0571 546XTranslational Cancer Research Facility, National Center for Cancer Care and Research, Translational Research Institute, Hamad Medical Corporation, P.O. Box: 3050, Doha, Qatar
| | - Varghese P. Inchakalody
- grid.413548.f0000 0004 0571 546XTranslational Cancer Research Facility, National Center for Cancer Care and Research, Translational Research Institute, Hamad Medical Corporation, P.O. Box: 3050, Doha, Qatar
| | - Sarra Mestiri
- grid.413548.f0000 0004 0571 546XTranslational Cancer Research Facility, National Center for Cancer Care and Research, Translational Research Institute, Hamad Medical Corporation, P.O. Box: 3050, Doha, Qatar
| | - Majid Alam
- grid.413548.f0000 0004 0571 546XTranslational Research Institute, Academic Health System, Dermatology Institute, Hamad Medical Corporation, Doha, Qatar ,grid.413548.f0000 0004 0571 546XDepartment of Dermatology and Venereology, Hamad Medical Corporation, Doha, Qatar
| | - Cristina Maccalli
- grid.467063.00000 0004 0397 4222Laboratory of Immune and Biological Therapy, Research Department, Sidra Medicine, Doha, Qatar
| | - Honar Cherif
- grid.413548.f0000 0004 0571 546XDepartment of Hematology, National Center for Cancer Care and Research, Hamad Medical Corporation, Doha, Qatar
| | - Shahab Uddin
- grid.413548.f0000 0004 0571 546XTranslational Research Institute, Academic Health System, Dermatology Institute, Hamad Medical Corporation, Doha, Qatar
| | - Martin Steinhoff
- grid.413548.f0000 0004 0571 546XTranslational Research Institute, Academic Health System, Dermatology Institute, Hamad Medical Corporation, Doha, Qatar ,grid.413548.f0000 0004 0571 546XDepartment of Dermatology and Venereology, Hamad Medical Corporation, Doha, Qatar ,grid.416973.e0000 0004 0582 4340Department of Dermatology, Weill Cornell Medicine-Qatar, Doha, Qatar ,grid.412603.20000 0004 0634 1084College of Medicine, Qatar University, Doha, Qatar ,grid.5386.8000000041936877XDepartment of Dermatology, Weill Cornell Medicine, New York, USA
| | - Francesco M. Marincola
- grid.418227.a0000 0004 0402 1634Global Head of Research, Kite Pharma, Santa Monica, California USA
| | - Said Dermime
- grid.413548.f0000 0004 0571 546XTranslational Cancer Research Facility, National Center for Cancer Care and Research, Translational Research Institute, Hamad Medical Corporation, P.O. Box: 3050, Doha, Qatar ,grid.452146.00000 0004 1789 3191College of Health and Life Sciences (CHLS), Hamad Bin Khalifa University, Doha, Qatar
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15
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Sosa Cuevas E, Roubinet B, Mouret S, Thépaut M, de Fraipont F, Charles J, Fieschi F, Landemarre L, Chaperot L, Aspord C. The melanoma tumor glyco-code impacts human dendritic cells' functionality and dictates clinical outcomes. Front Immunol 2023; 14:1120434. [PMID: 36891308 PMCID: PMC9986448 DOI: 10.3389/fimmu.2023.1120434] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 02/01/2023] [Indexed: 02/22/2023] Open
Abstract
Subversion of immunity is a hallmark of cancer development. Dendritic cells (DCs) are strategic immune cells triggering anti-tumor immune responses, but tumor cells exploit their versatility to subvert their functions. Tumor cells harbor unusual glycosylation patterns, which can be sensed through glycan-binding receptors (lectins) expressed by immune cells that are crucial for DCs to shape and orientate antitumor immunity. Yet, the global tumor glyco-code and its impact on immunity has not been explored in melanoma. To decrypt the potential link between aberrant glycosylation patterns and immune evasion in melanoma, we investigated the melanoma tumor glyco-code through the GLYcoPROFILE™ methodology (lectin arrays), and depicted its impact on patients' clinical outcome and DC subsets' functionality. Specific glycan patterns correlated with clinical outcome of melanoma patients, GlcNAc, NeuAc, TF-Ag and Fuc motifs being associated with poor outcome, whereas Man and Glc residues elicited better survival. Strikingly, tumor cells differentially impacting cytokine production by DCs harbored distinct glyco-profiles. GlcNAc exhibited a negative influence on cDC2s, whereas Fuc and Gal displayed inhibitory impacts on cDC1s and pDCs. We further identified potential booster glycans for cDC1s and pDCs. Targeting specific glycans on melanoma tumor cells restored DCs' functionality. The tumor glyco-code was also linked to the nature of the immune infiltrate. This study unveils the impact of melanoma glycan patterns on immunity, and paves the way for innovative therapeutic options. Glycans/lectins interactions arise as promising immune checkpoints to rescue DCs from tumor' hijacking to reshape antitumor immunity and inhibit immunosuppressive circuits triggered by aberrant tumor glycosylation.
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Affiliation(s)
- Eleonora Sosa Cuevas
- Institute for Advanced Biosciences, Team: Epigenetics, Immunity, Metabolism, Cell Signaling and Cancer, Inserm U 1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France.,Etablissement Français du Sang Auvergne-Rhône-Alpes, R&D Laboratory, Grenoble, France
| | | | - Stephane Mouret
- Dermatology, Allergology and Photobiology Department, CHU Grenoble Alpes, Grenoble, France
| | - Michel Thépaut
- Université Grenoble Alpes, CNRS, CEA, Institut de Biologie Structurale, Grenoble, France
| | - Florence de Fraipont
- Medical Unit of Molecular Genetic (Hereditary Diseases and Oncology), Grenoble University Hospital, Grenoble, France
| | - Julie Charles
- Dermatology, Allergology and Photobiology Department, CHU Grenoble Alpes, Grenoble, France
| | - Franck Fieschi
- Université Grenoble Alpes, CNRS, CEA, Institut de Biologie Structurale, Grenoble, France.,Institut Universitaire de France (IUF), Paris, France
| | | | - Laurence Chaperot
- Institute for Advanced Biosciences, Team: Epigenetics, Immunity, Metabolism, Cell Signaling and Cancer, Inserm U 1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France.,Etablissement Français du Sang Auvergne-Rhône-Alpes, R&D Laboratory, Grenoble, France
| | - Caroline Aspord
- Institute for Advanced Biosciences, Team: Epigenetics, Immunity, Metabolism, Cell Signaling and Cancer, Inserm U 1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France.,Etablissement Français du Sang Auvergne-Rhône-Alpes, R&D Laboratory, Grenoble, France
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16
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Miró L, López J, Guerrero PE, Martínez-Bosch N, Manero-Rupérez N, Moreno M, Ortiz MR, Llop E, Navarro P, Peracaula R. Sialyltransferase Inhibitor Ac 53F axNeu5Ac Reverts the Malignant Phenotype of Pancreatic Cancer Cells, and Reduces Tumor Volume and Favors T-Cell Infiltrates in Mice. Cancers (Basel) 2022; 14:cancers14246133. [PMID: 36551619 PMCID: PMC9776040 DOI: 10.3390/cancers14246133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/07/2022] [Accepted: 12/09/2022] [Indexed: 12/15/2022] Open
Abstract
Hypersialylation is a feature of pancreatic ductal adenocarcinoma (PDA) and it has been related to tumor malignancy and immune suppression. In this work, we have evaluated the potential of the sialyltransferase inhibitor, Ac53FaxNeu5Ac, to decrease tumor sialoglycans in PDA and to revert its malignant phenotype. Sialoglycans on PDA cells were evaluated by flow cytometry, and the functional impact of Ac53FaxNeu5Ac was assessed using E-selectin adhesion, migration, and invasion assays. PDA tumors were generated in syngeneic mice from KC cells and treated with Ac53FaxNeu5Ac to evaluate tumor growth, mice survival, and its impact on blocking sialic acid (SA) and on the tumor immune component. Ac53FaxNeu5Ac treatment on human PDA cells decreased α2,3-SA and sialyl-Lewisx, which resulted in a reduction in their E-selectin adhesion, and in their migratory and invasive capabilities. Subcutaneous murine tumors treated with Ac53FaxNeu5Ac reduced their volume, their SA expression, and modified their immune component, with an increase in CD8+ T-lymphocytes and NK cells. In conclusion, Ac53FaxNeu5Ac treatment weakened PDA cells' malignant phenotype, thereby reducing tumor growth while favoring anti-tumor immune surveillance. Altogether, these results show the positive impact of reducing SA expression by inhibiting cell sialyltransferases and open the way to use sialyltransferase inhibitors to target this dismal disease.
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Affiliation(s)
- Laura Miró
- Biochemistry and Molecular Biology Unit, Department of Biology, University of Girona, 17003 Girona, Spain
- Girona Biomedical Research Institute (IDIBGI), 17190 Girona, Spain
| | - Júlia López
- Biochemistry and Molecular Biology Unit, Department of Biology, University of Girona, 17003 Girona, Spain
- Girona Biomedical Research Institute (IDIBGI), 17190 Girona, Spain
| | - Pedro E. Guerrero
- Biochemistry and Molecular Biology Unit, Department of Biology, University of Girona, 17003 Girona, Spain
- Girona Biomedical Research Institute (IDIBGI), 17190 Girona, Spain
| | - Neus Martínez-Bosch
- Cancer Research Program, Hospital del Mar Medical Research Institute (IMIM), Unidad Asociada IIBB-CSIC, 08003 Barcelona, Spain
| | - Noemí Manero-Rupérez
- Cancer Research Program, Hospital del Mar Medical Research Institute (IMIM), Unidad Asociada IIBB-CSIC, 08003 Barcelona, Spain
| | - Mireia Moreno
- Cancer Research Program, Hospital del Mar Medical Research Institute (IMIM), Unidad Asociada IIBB-CSIC, 08003 Barcelona, Spain
| | - M. Rosa Ortiz
- Pathology Department, Josep Trueta University Hospital, 17007 Girona, Spain
| | - Esther Llop
- Biochemistry and Molecular Biology Unit, Department of Biology, University of Girona, 17003 Girona, Spain
- Girona Biomedical Research Institute (IDIBGI), 17190 Girona, Spain
| | - Pilar Navarro
- Cancer Research Program, Hospital del Mar Medical Research Institute (IMIM), Unidad Asociada IIBB-CSIC, 08003 Barcelona, Spain
- Institute of Biomedical Research of Barcelona (IIBB)-CSIC, 08036 Barcelona, Spain
- Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - Rosa Peracaula
- Biochemistry and Molecular Biology Unit, Department of Biology, University of Girona, 17003 Girona, Spain
- Girona Biomedical Research Institute (IDIBGI), 17190 Girona, Spain
- Correspondence: ; Tel.: +34-972418370
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17
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Marciel MP, Haldar B, Hwang J, Bhalerao N, Bellis SL. Role of tumor cell sialylation in pancreatic cancer progression. Adv Cancer Res 2022; 157:123-155. [PMID: 36725107 PMCID: PMC11342334 DOI: 10.1016/bs.acr.2022.07.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is one of the deadliest malignancies and is currently the third leading cause of cancer death. The aggressiveness of PDAC stems from late diagnosis, early metastasis, and poor efficacy of current chemotherapies. Thus, there is an urgent need for effective biomarkers for early detection of PDAC and development of new therapeutic strategies. It has long been known that cellular glycosylation is dysregulated in pancreatic cancer cells, however, tumor-associated glycans and their cognate glycosylating enzymes have received insufficient attention as potential clinical targets. Aberrant glycosylation affects a broad range of pathways that underpin tumor initiation, metastatic progression, and resistance to cancer treatment. One of the prevalent alterations in the cancer glycome is an enrichment in a select group of sialylated glycans including sialylated, branched N-glycans, sialyl Lewis antigens, and sialylated forms of truncated O-glycans such as the sialyl Tn antigen. These modifications affect the activity of numerous cell surface receptors, which collectively impart malignant characteristics typified by enhanced cell proliferation, migration, invasion and apoptosis-resistance. Additionally, sialic acids on tumor cells engage inhibitory Siglec receptors on immune cells to dampen anti-tumor immunity, further promoting cancer progression. The goal of this review is to summarize the predominant changes in sialylation occurring in pancreatic cancer, the biological functions of sialylated glycoproteins in cancer pathogenesis, and the emerging strategies for targeting sialoglycans and Siglec receptors in cancer therapeutics.
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Affiliation(s)
- Michael P Marciel
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Barnita Haldar
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Jihye Hwang
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Nikita Bhalerao
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Susan L Bellis
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL, United States.
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18
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Sun W, Jiang Z, Jiang W, Yang R. Universal chimeric antigen receptor T cell therapy - The future of cell therapy: A review providing clinical evidence. Cancer Treat Res Commun 2022; 33:100638. [PMID: 36184307 DOI: 10.1016/j.ctarc.2022.100638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/15/2022] [Accepted: 09/21/2022] [Indexed: 12/14/2022]
Abstract
Autologous CAR-T therapy has shown promising outcomes in the treatment of tumors, particularly hematological malignancies over the past years. However, the application of autologous CAR-T therapy is limited, due to undesirable patient and/or peripheral blood characteristics, the high cost and long time period of manufacturing, and other challenges. Universal CAR-T therapy could overcome major limitations of autologous CAR-T therapy. In this review, we described the research and development status of universal CAR-T therapy for hematological malignancies. In addition, we also summarized the challenges had been encountered and the current solutions.
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Affiliation(s)
| | | | - Wen Jiang
- Gobroad Healthcare Group, Beijing, China
| | - Rui Yang
- Gobroad Healthcare Group, Beijing, China.
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19
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Wen R, Zhao H, Zhang D, Chiu CL, Brooks JD. Sialylated glycoproteins as biomarkers and drivers of progression in prostate cancer. Carbohydr Res 2022; 519:108598. [PMID: 35691122 DOI: 10.1016/j.carres.2022.108598] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 04/20/2022] [Accepted: 05/20/2022] [Indexed: 01/27/2023]
Abstract
Sialic acids have been implicated in cancer initiation, progression, and immune evasion in diverse human malignancies. Sialylation of terminal glycans on cell surface and secreted glycoproteins is a long-recognized feature of cancer cells. Recently, immune checkpoint inhibitor immunotherapy has tremendously improved the outcomes of patients with various cancers. However, available immunotherapy approaches have had limited efficacy in metastatic castration-resistant prostate cancer. Sialic acid modified glycoproteins in prostate cancers and their interaction with Siglec receptors on tumor infiltrating immune cells might underlie immunosuppressive signaling in prostate cancer. Here, we summarize the function of sialic acids and relevant glycosynthetic enzymes in cancer initiation and progression. We also discuss the possible uses of sialic acids as biomarkers in prostate cancer and the potential methods for targeting Siglec-sialic acid interactions for prostate cancer treatment.
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Affiliation(s)
- Ru Wen
- Department of Urology, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Hongjuan Zhao
- Department of Urology, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Dalin Zhang
- Department of Urology, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Chun-Lung Chiu
- Department of Urology, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - James D Brooks
- Department of Urology, Stanford University School of Medicine, Stanford, CA, 94305, USA.
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20
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Jiang KY, Qi LL, Kang FB, Wang L. The intriguing roles of Siglec family members in the tumor microenvironment. Biomark Res 2022; 10:22. [PMID: 35418152 PMCID: PMC9008986 DOI: 10.1186/s40364-022-00369-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 03/25/2022] [Indexed: 02/06/2023] Open
Abstract
Sialic acid-binding receptors are expressed on the surfaces of a variety of immune cells and have complex and diverse immunoregulatory functions in health and diseases. Recent studies have shown that Siglecs could play diverse immune and nonimmune regulatory roles in the tumor microenvironment (TME) and participate in tumor progression through various mechanisms, such as regulating tumor growth and metastasis, mediating the inflammatory response, and promoting tumor immune escape, thereby affecting the prognoses and outcomes of patients. However, depending on the cell type in which they are expressed, each Siglec member binds to corresponding ligands in the microenvironment milieu to drive diverse cell physiological and pathological processes in tumors. Therefore, we herein summarize the expression spectra and functions of the Siglec family in human diseases, particularly cancer, and highlight the possibility of therapeutic interventions targeting the TME in the future.
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Affiliation(s)
- Kui-Ying Jiang
- Department of Orthopedic Oncology, the Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China
| | - Li-Li Qi
- Experimental Center for Teaching of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China
| | - Fu-Biao Kang
- The Liver Disease Center of PLA, the 980Th Hospital of PLA Joint Logistics Support Force, Shijiazhuang, Hebei, People's Republic of China.
| | - Ling Wang
- Department of Orthopedic Oncology, the Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China.
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21
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Derosiers N, Aguilar W, DeGaramo DA, Posey AD. Sweet Immune Checkpoint Targets to Enhance T Cell Therapy. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 208:278-285. [PMID: 35017217 DOI: 10.4049/jimmunol.2100706] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 10/17/2021] [Indexed: 12/21/2022]
Abstract
Despite tremendous success against hematological malignancies, the performance of chimeric Ag receptor T cells against solid tumors remains poor. In such settings, the lack of success of this groundbreaking immunotherapy is in part mediated by ligand engagement of immune checkpoint molecules on the surface of T cells in the tumor microenvironment. Although CTLA-4 and programmed death-1 (PD-1) are well-established checkpoints that inhibit T cell activity, the engagement of glycans and glycan-binding proteins are a growing area of interest due to their immunomodulatory effects. This review discusses exemplary strategies to neutralize checkpoint molecules through an in-depth overview of genetic engineering approaches aimed at overcoming the inhibitory programmed death ligand-1 (PD-L1)/PD-1 axis in T cell therapies and summarizes current knowledge on glycoimmune interactions that mediate T cell immunosuppression.
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Affiliation(s)
- Nohelly Derosiers
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA; and
| | - William Aguilar
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA; and
| | - David A DeGaramo
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA; and
| | - Avery D Posey
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA; and .,Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA
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22
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Abrantes R, Duarte HO, Gomes C, Wälchli S, Reis CA. CAR-Ts: new perspectives in cancer therapy. FEBS Lett 2022; 596:403-416. [PMID: 34978080 DOI: 10.1002/1873-3468.14270] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 12/02/2021] [Accepted: 12/20/2021] [Indexed: 12/31/2022]
Abstract
Chimeric antigen receptor (CAR)-T-cell therapy is a promising anticancer treatment that exploits the host's immune system to fight cancer. CAR-T cell therapy relies on immune cells being modified to express an artificial receptor targeting cancer-specific markers, and infused into the patients where they will recognize and eliminate the tumour. Although CAR-T cell therapy has produced encouraging outcomes in patients with haematologic malignancies, solid tumours remain challenging to treat, mainly due to the lack of cancer-specific molecular targets and the hostile, often immunosuppressive, tumour microenvironment. CAR-T cell therapy also depends on the quality of the injected product, which is closely connected to CAR design. Here, we explain the technology of CAR-Ts, focusing on the composition of CARs, their application, and limitations in cancer therapy, as well as on the current strategies to overcome the challenges encountered. We also address potential future targets to overcome the flaws of CAR-T cell technology in the treatment of cancer, emphasizing glycan antigens, the aberrant forms of which attain high tumour-specific expression, as promising targets for CAR-T cell therapy.
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Affiliation(s)
- Rafaela Abrantes
- i3S, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal
- IPATIMUP, Institute of Molecular Pathology and Immunology, University of Porto, Portugal
- ICBAS, Abel Salazar Biomedical Sciences Institute, University of Porto, Portugal
| | - Henrique O Duarte
- i3S, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal
- IPATIMUP, Institute of Molecular Pathology and Immunology, University of Porto, Portugal
| | - Catarina Gomes
- i3S, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal
- IPATIMUP, Institute of Molecular Pathology and Immunology, University of Porto, Portugal
| | - Sébastien Wälchli
- Translational Research Unit, Department of Cellular Therapy, Oslo University Hospital, Norway
| | - Celso A Reis
- i3S, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal
- IPATIMUP, Institute of Molecular Pathology and Immunology, University of Porto, Portugal
- ICBAS, Abel Salazar Biomedical Sciences Institute, University of Porto, Portugal
- FMUP, Faculty of Medicine, University of Porto, Portugal
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Zur RT, Adler G, Shamalov K, Tal Y, Ankri C, Cohen CJ. Adoptive T-cell Immunotherapy: Perfecting Self-Defenses. EXPERIENTIA SUPPLEMENTUM (2012) 2022; 113:253-294. [PMID: 35165867 DOI: 10.1007/978-3-030-91311-3_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
As an important part of the immune system, T lymphocytes exhibit undoubtedly an important role in targeting and eradicating cancer. However, despite these characteristics, their natural antitumor response may be insufficient. Numerous clinical trials in terminally ill cancer patients testing the design of novel and efficient immunotherapeutic approaches based on the adoptive transfer of autologous tumor-specific T lymphocytes have shown encouraging results. Moreover, this also led to the approval of engineered T-cell therapies in patients. Herein, we will expand on the development and the use of such strategies using tumor-infiltrating lymphocytes or genetically engineered T-cells. We will also comment on the requirements and potential hurdles encountered when elaborating and implementing such treatments as well as the exciting prospects for this kind of emerging personalized medicine therapy.
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Affiliation(s)
- Raphaëlle Toledano Zur
- Laboratory of Tumor Immunology and Immunotherapy, The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel
| | - Galit Adler
- Laboratory of Tumor Immunology and Immunotherapy, The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel
| | - Katerina Shamalov
- Laboratory of Tumor Immunology and Immunotherapy, The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel
| | - Yair Tal
- Laboratory of Tumor Immunology and Immunotherapy, The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel
| | - Chen Ankri
- Laboratory of Tumor Immunology and Immunotherapy, The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel
| | - Cyrille J Cohen
- Laboratory of Tumor Immunology and Immunotherapy, The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel.
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24
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Keane JT, Posey AD. Chimeric Antigen Receptors Expand the Repertoire of Antigenic Macromolecules for Cellular Immunity. Cells 2021; 10:cells10123356. [PMID: 34943864 PMCID: PMC8699116 DOI: 10.3390/cells10123356] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 11/24/2021] [Accepted: 11/26/2021] [Indexed: 12/16/2022] Open
Abstract
T-cell therapies have made significant improvements in cancer treatment over the last decade. One cellular therapy utilizing T-cells involves the use of a chimeric MHC-independent antigen-recognition receptor, typically referred to as a chimeric antigen receptor (CAR). CAR molecules, while mostly limited to the recognition of antigens on the surface of tumor cells, can also be utilized to exploit the diverse repertoire of macromolecules targetable by antibodies, which are incorporated into the CAR design. Leaning into this expansion of target macromolecules will enhance the diversity of antigens T-cells can target and may improve the tumor-specificity of CAR T-cell therapy. This review explores the types of macromolecules targetable by T-cells through endogenous and synthetic antigen-specific receptors.
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Affiliation(s)
- John T. Keane
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA;
| | - Avery D. Posey
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA;
- Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA 19104, USA
- Correspondence:
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25
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Lim J, Sari-Ak D, Bagga T. Siglecs as Therapeutic Targets in Cancer. BIOLOGY 2021; 10:1178. [PMID: 34827170 PMCID: PMC8615218 DOI: 10.3390/biology10111178] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/03/2021] [Accepted: 11/08/2021] [Indexed: 02/06/2023]
Abstract
Hypersialylation is a common post-translational modification of protein and lipids found on cancer cell surfaces, which participate in cell-cell interactions and in the regulation of immune responses. Sialic acids are a family of nine-carbon α-keto acids found at the outermost ends of glycans attached to cell surfaces. Given their locations on cell surfaces, tumor cells aberrantly overexpress sialic acids, which are recognized by Siglec receptors found on immune cells to mediate broad immunomodulatory signaling. Enhanced sialylation exposed on cancer cell surfaces is exemplified as "self-associated molecular pattern" (SAMP), which tricks Siglec receptors found on leukocytes to greatly down-regulate immune responsiveness, leading to tumor growth. In this review, we focused on all 15 human Siglecs (including Siglec XII), many of which still remain understudied. We also highlighted strategies that disrupt the course of Siglec-sialic acid interactions, such as antibody-based therapies and sialic acid mimetics leading to tumor cell depletion. Herein, we introduced the central roles of Siglecs in mediating pro-tumor immunity and discussed strategies that target these receptors, which could benefit improved cancer immunotherapy.
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Affiliation(s)
- Jackwee Lim
- Singapore Immunology Network, A*STAR, 8a Biomedical Grove, Singapore 138648, Singapore;
| | - Duygu Sari-Ak
- Department of Medical Biology, School of Medicine, University of Health Sciences, Istanbul 34668, Turkey;
| | - Tanaya Bagga
- Singapore Immunology Network, A*STAR, 8a Biomedical Grove, Singapore 138648, Singapore;
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26
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Karmakar S, Pal P, Lal G. Key Activating and Inhibitory Ligands Involved in the Mobilization of Natural Killer Cells for Cancer Immunotherapies. Immunotargets Ther 2021; 10:387-407. [PMID: 34754837 PMCID: PMC8570289 DOI: 10.2147/itt.s306109] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 10/19/2021] [Indexed: 12/24/2022] Open
Abstract
Natural killer (NK) cells are the most potent arm of the innate immune system and play an important role in immunity, alloimmunity, autoimmunity, and cancer. NK cells recognize “altered-self” cells due to oncogenic transformation or stress due to viral infection and target to kill them. The effector functions of NK cells depend on the interaction of the activating and inhibitory receptors on their surface with their cognate ligand expressed on the target cells. These activating and inhibitory receptors interact with major histocompatibility complex I (MHC I) expressed on the target cells and make decisions to mount an immune response. NK cell immune response includes cytolytic activity and secretion of cytokines to help with the ongoing immune response. The advancement of our knowledge on the expression of inhibitory and activating molecules led us to exploit these molecules in the treatment of cancer. This review discusses the importance of activating and inhibitory receptors on NK cells and their clinical importance in cancer immunotherapy.
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Affiliation(s)
- Surojit Karmakar
- National Centre for Cell Science (NCCS), Pune, MH, 411007, India
| | - Pradipta Pal
- National Centre for Cell Science (NCCS), Pune, MH, 411007, India
| | - Girdhari Lal
- National Centre for Cell Science (NCCS), Pune, MH, 411007, India
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27
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The Role of Glycosylation in Melanoma Progression. Cells 2021; 10:cells10082136. [PMID: 34440905 PMCID: PMC8393314 DOI: 10.3390/cells10082136] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/17/2021] [Accepted: 08/18/2021] [Indexed: 01/06/2023] Open
Abstract
Malignant melanoma is the most aggressive form of skin cancer, which originates from the malignant transformation of melanocytes, the melanin-producing cells of the skin. Melanoma progression is typically described as a stepwise process in which metastasis formation ensues late during disease. A large body of evidence has shown that the accumulation of genetic and epigenetic alterations drives melanoma progression through the different steps. Mortality in melanoma is associated with metastatic disease. Accordingly, early-stage melanoma can be cured in the majority of cases by surgical excision, while late-stage melanoma is a highly lethal disease. Glycosylation is a post-translational modification that involves the transfer of glycosyl moieties to specific amino acid residues of proteins to form glycosidic bonds through the activity of glycosyltransferases. Aberrant glycosylation is considered a hallmark of cancer as it occurs in the majority of tumor types, including melanoma. The most widely occurring glycosylation changes in melanoma are represented by sialylation, fucosylation, and N- and I-glycan branching. In this review, we discuss the role of glycosylation in melanoma and provide insights on the mechanisms by which aberrant glycosylation promotes melanoma progression through activation of invasion and metastasis, immune evasion and cell proliferation.
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Liu W, Ji Z, Wu B, Huang S, Chen Q, Chen X, Wei Y, Jiang J. Siglec-15 promotes the migration of liver cancer cells by repressing lysosomal degradation of CD44. FEBS Lett 2021; 595:2290-2302. [PMID: 34328657 DOI: 10.1002/1873-3468.14169] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 06/14/2021] [Accepted: 07/14/2021] [Indexed: 01/25/2023]
Abstract
Sialic acid-binding immunoglobulin-like lectin-15 (Siglec-15) has been identified as a novel potential target for cancer immunotherapy. Here, we explored the role of Siglec-15 in human hepatoma cells. In this study, we found that the expression of Siglec-15 is substantially upregulated in liver cancer tissues in comparison with the nontumor tissues. Functionally, in vitro experiments show that Siglec-15 promotes the migration of hepatoma cells. Furthermore, the data demonstrated an interaction between Siglec-15 and CD44, a transmembrane glycoprotein that mediates tumor progression and metastasis. In addition, we show that CD44 is modified by α2,6-linked sialic acids on N-glycans in hepatoma cells and that CD44 sialylation affects its interaction with Siglec-15. Removal of the sialic acid residues from CD44 resulted in suppressed interaction between Siglec-15 and CD44. We further demonstrate that Siglec-15 interacts and promotes the stability of CD44 by preventing its lysosomal-mediated degradation. Taken together, our findings demonstrate that Siglec-15 promotes the migration of hepatoma cells by regulating the CD44 protein stability.
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Affiliation(s)
- Weitao Liu
- NHC Key Laboratory of Glycoconjugates Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Zhi Ji
- NHC Key Laboratory of Glycoconjugates Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - BingRui Wu
- NHC Key Laboratory of Glycoconjugates Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Sijing Huang
- NHC Key Laboratory of Glycoconjugates Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Qihang Chen
- NHC Key Laboratory of Glycoconjugates Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Xiaoning Chen
- NHC Key Laboratory of Glycoconjugates Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Yuanyan Wei
- NHC Key Laboratory of Glycoconjugates Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Jianhai Jiang
- NHC Key Laboratory of Glycoconjugates Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
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29
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Aberrant Sialylation in Cancer: Biomarker and Potential Target for Therapeutic Intervention? Cancers (Basel) 2021; 13:cancers13092014. [PMID: 33921986 PMCID: PMC8122436 DOI: 10.3390/cancers13092014] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/19/2021] [Accepted: 04/20/2021] [Indexed: 12/14/2022] Open
Abstract
Simple Summary Sialylation is a post-translational modification that consists in the addition of sialic acid to growing glycan chains on glycoproteins and glycolipids. Aberrant sialylation is an established hallmark of several types of cancer, including breast, ovarian, pancreatic, prostate, colorectal and lung cancers, melanoma and hepatocellular carcinoma. Hypersialylation can be the effect of increased activity of sialyltransferases and results in an excess of negatively charged sialic acid on the surface of cancer cells. Sialic acid accumulation contributes to tumor progression by several paths, including stimulation of tumor invasion and migration, and enhancing immune evasion and tumor cell survival. In this review we explore the mechanisms by which sialyltransferases promote cancer progression. In addition, we provide insights into the possible use of sialyltransferases as biomarkers for cancer and summarize findings on the development of sialyltransferase inhibitors as potential anti-cancer treatments. Abstract Sialylation is an integral part of cellular function, governing many biological processes including cellular recognition, adhesion, molecular trafficking, signal transduction and endocytosis. Sialylation is controlled by the levels and the activities of sialyltransferases on glycoproteins and lipids. Altered gene expression of these enzymes in cancer yields to cancer-specific alterations of glycoprotein sialylation. Mounting evidence indicate that hypersialylation is closely associated with cancer progression and metastatic spread, and can be of prognostic significance in human cancer. Aberrant sialylation is not only a result of cancer, but also a driver of malignant phenotype, directly impacting key processes such as tumor cell dissociation and invasion, cell-cell and cell-matrix interactions, angiogenesis, resistance to apoptosis, and evasion of immune destruction. In this review we provide insights on the impact of sialylation in tumor progression, and outline the possible application of sialyltransferases as cancer biomarkers. We also summarize the most promising findings on the development of sialyltransferase inhibitors as potential anti-cancer treatments.
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30
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Aberrant protein glycosylation in cancer: implications in targeted therapy. Biochem Soc Trans 2021; 49:843-854. [PMID: 33704376 DOI: 10.1042/bst20200763] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 02/12/2021] [Accepted: 02/15/2021] [Indexed: 12/28/2022]
Abstract
Aberrant cell surface glycosylation signatures are currently known to actively drive the neoplastic transformation of healthy cells. By disrupting the homeostatic functions of their protein carriers, cancer-associated glycans mechanistically underpin several molecular hallmarks of human malignancy. Furthermore, such aberrant glycan structures play key roles in the acquisition of molecular resistance to targeted therapeutic agents, which compromises their clinical efficacy, by modulating tumour cell aggressiveness and supporting the establishment of an immunosuppressive microenvironment. Recent advances in the study of the tumour cell glycoproteome have unravelled previously elusive molecular mechanisms of therapeutic resistance, guided the rational design of novel personalized therapeutic strategies, and may further improve the clinical performance of currently approved anti-cancer targeted agents. In this review, we highlight the impact of glycosylation in cancer targeted therapy, with particular focus on receptor tyrosine kinase-targeted therapy, immune checkpoints blockade therapy, and current developments on therapeutic strategies directed to glycan-binding proteins and other innovative glycan therapeutic strategies.
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31
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Rodriguez E, Boelaars K, Brown K, Eveline Li RJ, Kruijssen L, Bruijns SCM, van Ee T, Schetters STT, Crommentuijn MHW, van der Horst JC, van Grieken NCT, van Vliet SJ, Kazemier G, Giovannetti E, Garcia-Vallejo JJ, van Kooyk Y. Sialic acids in pancreatic cancer cells drive tumour-associated macrophage differentiation via the Siglec receptors Siglec-7 and Siglec-9. Nat Commun 2021; 12:1270. [PMID: 33627655 PMCID: PMC7904912 DOI: 10.1038/s41467-021-21550-4] [Citation(s) in RCA: 130] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 01/25/2021] [Indexed: 11/09/2022] Open
Abstract
Changes in glycosylation during tumour progression are a key hallmark of cancer. One of the glycan moieties generally overexpressed in cancer are sialic acids, which can induce immunomodulatory properties via binding to Siglec receptors. We here show that Pancreatic Ductal Adenocarcinoma (PDAC) tumour cells present an increased sialylation that can be recognized by Siglec-7 and Siglec-9 on myeloid cells. We identified the expression of the α2,3 sialyltransferases ST3GAL1 and ST3GAL4 as main contributor to the synthesis of ligands for Siglec-7 and Siglec-9 in tumour cells. Analysing the myeloid composition in PDAC, using single cell and bulk transcriptomics data, we identified monocyte-derived macrophages as contributors to the poor clinical outcome. Tumour-derived sialic acids dictate monocyte to macrophage differentiation via signalling through Siglec-7 and Siglec-9. Moreover, triggering of Siglec-9 in macrophages reduce inflammatory programmes, while increasing PD-L1 and IL-10 expression, illustrating that sialic acids modulate different myeloid cells. This work highlights a critical role for sialylated glycans in controlling immune suppression and provides new potential targets for cancer immunotherapy in PDAC.
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Affiliation(s)
- Ernesto Rodriguez
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Amsterdam, Netherlands
| | - Kelly Boelaars
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Amsterdam, Netherlands
| | - Kari Brown
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Amsterdam, Netherlands
| | - R J Eveline Li
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Amsterdam, Netherlands
| | - Laura Kruijssen
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Amsterdam, Netherlands
| | - Sven C M Bruijns
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Amsterdam, Netherlands
| | - Thomas van Ee
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Amsterdam, Netherlands
| | - Sjoerd T T Schetters
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Amsterdam, Netherlands
| | - Matheus H W Crommentuijn
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Amsterdam, Netherlands
| | - Joost C van der Horst
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Amsterdam, Netherlands
| | - Nicole C T van Grieken
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Pathology, Amsterdam, Netherlands
| | - Sandra J van Vliet
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Amsterdam, Netherlands
| | - Geert Kazemier
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Surgery, Cancer Center Amsterdam, Amsterdam, Netherlands
| | - Elisa Giovannetti
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam, Netherlands
- Cancer Pharmacology Lab, AIRC Start-Up Unit, Fondazione Pisana per la Scienza, Pisa, Italy
| | - Juan J Garcia-Vallejo
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Amsterdam, Netherlands
| | - Yvette van Kooyk
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Amsterdam, Netherlands.
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32
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Murugesan G, Weigle B, Crocker PR. Siglec and anti-Siglec therapies. Curr Opin Chem Biol 2021; 62:34-42. [PMID: 33607404 DOI: 10.1016/j.cbpa.2021.01.001] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 12/21/2020] [Accepted: 01/04/2021] [Indexed: 12/15/2022]
Abstract
Siglecs (sialic acid-binding immunoglobulin-like lectins) are a family of receptors that bind sialic acids in specific linkages on glycoproteins and glycolipids. Siglecs play roles in immune signalling and exhibit cell-type specific expression and endocytic properties. Recent studies suggest that Siglecs are likely to function as immune checkpoints that regulate responses in cancers and inflammatory diseases. In this review, we discuss strategies to target the Siglec-sialic acid axis in human diseases, particularly cancer, and the possibility of exploiting them for therapeutic intervention.
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Affiliation(s)
- Gavuthami Murugesan
- Division of Cell Signalling and Immunology, School of Life Sciences, University of Dundee, Dundee, DD1 5EH, United Kingdom
| | - Bernd Weigle
- Cancer Immunology & Immune Modulation, Boehringer Ingelheim Pharma GmbH & Co KG, Birkendorfer Str. 65, 88397, Biberach/Riss, Germany
| | - Paul R Crocker
- Division of Cell Signalling and Immunology, School of Life Sciences, University of Dundee, Dundee, DD1 5EH, United Kingdom.
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Abstract
The surfaces of all living organisms and most secreted proteins share a common feature: They are glycosylated. As the outermost-facing molecules, glycans participate in nearly all immunological processes, including driving host-pathogen interactions, immunological recognition and activation, and differentiation between self and nonself through a complex array of pathways and mechanisms. These fundamental immunologic roles are further cast into sharp relief in inflammatory, autoimmune, and cancer disease states in which immune regulation goes awry. Here, we review the broad impact of glycans on the immune system and discuss the changes and clinical opportunities associated with the onset of immunologic disease.
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Affiliation(s)
- Julie Y Zhou
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106-7288, USA;
| | - Brian A Cobb
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106-7288, USA;
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34
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Rosenstock P, Kaufmann T. Sialic Acids and Their Influence on Human NK Cell Function. Cells 2021; 10:263. [PMID: 33572710 PMCID: PMC7911748 DOI: 10.3390/cells10020263] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/26/2021] [Accepted: 01/26/2021] [Indexed: 12/14/2022] Open
Abstract
Sialic acids are sugars with a nine-carbon backbone, present on the surface of all cells in humans, including immune cells and their target cells, with various functions. Natural Killer (NK) cells are cells of the innate immune system, capable of killing virus-infected and tumor cells. Sialic acids can influence the interaction of NK cells with potential targets in several ways. Different NK cell receptors can bind sialic acids, leading to NK cell inhibition or activation. Moreover, NK cells have sialic acids on their surface, which can regulate receptor abundance and activity. This review is focused on how sialic acids on NK cells and their target cells are involved in NK cell function.
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Affiliation(s)
- Philip Rosenstock
- Institute for Physiological Chemistry, Martin-Luther-University Halle-Wittenberg, Hollystr. 1, D-06114 Halle/Saale, Germany;
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35
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Current Status on Therapeutic Molecules Targeting Siglec Receptors. Cells 2020; 9:cells9122691. [PMID: 33333862 PMCID: PMC7765293 DOI: 10.3390/cells9122691] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/09/2020] [Accepted: 12/12/2020] [Indexed: 12/15/2022] Open
Abstract
The sialic acid-binding immunoglobulin-type of lectins (Siglecs) are receptors that recognize sialic acid-containing glycans. In the majority of the cases, Siglecs are expressed on immune cells and play a critical role in regulating immune cell signaling. Over the years, it has been shown that the sialic acid-Siglec axis participates in immunological homeostasis, and that any imbalance can trigger different pathologies, such as autoimmune diseases or cancer. For all this, different therapeutics have been developed that bind to Siglecs, either based on antibodies or being smaller molecules. In this review, we briefly introduce the Siglec family and we compile a description of glycan-based molecules and antibody-based therapies (including CAR-T and bispecific antibodies) that have been designed to therapeutically targeting Siglecs.
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36
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Läubli H, Kawanishi K, George Vazhappilly C, Matar R, Merheb M, Sarwar Siddiqui S. Tools to study and target the Siglec-sialic acid axis in cancer. FEBS J 2020; 288:6206-6225. [PMID: 33251699 DOI: 10.1111/febs.15647] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 11/18/2020] [Accepted: 11/23/2020] [Indexed: 12/16/2022]
Abstract
Siglecs are widely expressed on leucocytes and bind to ubiquitously presented glycans containing sialic acids (sialoglycans). Most Siglecs carry an immunoreceptor tyrosine-based inhibition motif (ITIM) and elicit an inhibitory intracellular signal upon ligand binding. A few Siglec receptors can, however, recruit immunoreceptor tyrosine-based activation motif (ITAM)-containing factors, which activate cells. The role of hypersialylation (the enhanced expression of sialoglycans) has recently been explored in cancer progression. Mechanistic studies have shown that hypersialylation on cancer cells can engage inhibitory Siglecs on the surface of immune cells and induce immunosuppression. These recent studies strongly suggest that the Siglec-sialic acid axis can act as a potential target for cancer immunotherapy. Moreover, the use of new tools and techniques is facilitating these studies. In this review, we summarise techniques used to study Siglecs, including different mouse models, monoclonal antibodies, Siglec fusion proteins, and sialoglycan arrays. Furthermore, we discuss the recent major developments in the study of Siglecs in cancer immunosuppression, tools, and techniques used in targeting the Siglec-sialic acid axis and the possibility of clinical intervention.
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Affiliation(s)
- Heinz Läubli
- Laboratory for Cancer Immunotherapy, Department of Biomedicine, and Medical Oncology, Department of Internal Medicine, University Hospital Basel, Switzerland
| | - Kunio Kawanishi
- Kidney and Vascular Pathology, University of Tsukuba, Ibaraki, Japan
| | | | - Rachel Matar
- Department of Biotechnology, American University of Ras Al Khaimah (AURAK), UAE
| | - Maxime Merheb
- Department of Biotechnology, American University of Ras Al Khaimah (AURAK), UAE
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Sivori S, Della Chiesa M, Carlomagno S, Quatrini L, Munari E, Vacca P, Tumino N, Mariotti FR, Mingari MC, Pende D, Moretta L. Inhibitory Receptors and Checkpoints in Human NK Cells, Implications for the Immunotherapy of Cancer. Front Immunol 2020; 11:2156. [PMID: 33013909 PMCID: PMC7494755 DOI: 10.3389/fimmu.2020.02156] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 08/07/2020] [Indexed: 12/30/2022] Open
Abstract
The highly destructive mechanisms by which the immune system faces microbial infections is under the control of a series of inhibitory receptors. While most of these receptors prevent unwanted/excessive responses of individual effector cells, others play a more general role in immunity, acting as true inhibitory checkpoints controlling both innate and adaptive immunity. Regarding human NK cells, their function is finely regulated by HLA-class I-specific inhibitory receptors which allow discrimination between HLA-I+, healthy cells and tumor or virus-infected cells displaying loss or substantial alterations of HLA-I molecules, including allelic losses that are sensed by KIRs. A number of non-HLA-specific receptors have been identified which recognize cell surface or extracellular matrix ligands and may contribute to the physiologic control of immune responses and tolerance. Among these receptors, Siglec 7 (p75/AIRM-1), LAIR-1 and IRp60, recognize ligands including sialic acids, extracellular matrix/collagen or aminophospholipids, respectively. These ligands may be expressed at the surface of tumor cells, thus inhibiting NK cell function. Expression of the PD-1 checkpoint by NK cells requires particular cytokines (IL-15, IL-12, IL-18) together with cortisol, a combination that may occur in the microenvironment of different tumors. Blocking of single or combinations of inhibitory receptors unleashes NK cells and restore their anti-tumor activity, with obvious implications for tumor immunotherapy.
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Affiliation(s)
- Simona Sivori
- Department of Experimental Medicine (DIMES) and Center of Excellence for Biomedical Research, University of Genoa, Genoa, Italy
| | - Mariella Della Chiesa
- Department of Experimental Medicine (DIMES) and Center of Excellence for Biomedical Research, University of Genoa, Genoa, Italy
| | - Simona Carlomagno
- Department of Experimental Medicine, University of Genoa, Genoa, Italy
| | - Linda Quatrini
- Department of Immunology, IRCCS Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - Enrico Munari
- Department of Pathology, IRCCS Sacro Cuore Don Calabria, Negrar, Italy
| | - Paola Vacca
- Department of Immunology, IRCCS Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - Nicola Tumino
- Department of Immunology, IRCCS Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | | | - Maria Cristina Mingari
- Department of Experimental Medicine (DIMES) and Center of Excellence for Biomedical Research, University of Genoa, Genoa, Italy.,UOC Immunology, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Daniela Pende
- UOC Immunology, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Lorenzo Moretta
- Department of Immunology, IRCCS Ospedale Pediatrico Bambino Gesù, Rome, Italy
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38
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Lu YC, Wang XJ. Harnessing the power of the immune system in cancer immunotherapy and cancer prevention. Mol Carcinog 2020; 59:675-678. [PMID: 32386070 DOI: 10.1002/mc.23211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 04/29/2020] [Indexed: 12/19/2022]
Affiliation(s)
- Yong-Chen Lu
- Surgery Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Xiao-Jing Wang
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, Colorado.,Veterans Affairs Medical Center, VA Eastern Colorado Health Care System, Aurora, Colorado
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