1
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Jones RT, Scholtes M, Goodspeed A, Akbarzadeh M, Mohapatra S, Feldman LE, Vekony H, Jean A, Tilton CB, Orman MV, Romal S, Deiter C, Kan TW, Xander N, Araki SP, Joshi M, Javaid M, Clambey ET, Layer R, Laajala TD, Parker SJ, Mahmoudi T, Zuiverloon TCM, Theodorescu D, Costello JC. NPEPPS Is a Druggable Driver of Platinum Resistance. Cancer Res 2024:OF1-OF20. [PMID: 38535994 DOI: 10.1158/0008-5472.can-23-1976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 12/20/2023] [Accepted: 02/29/2024] [Indexed: 04/05/2024]
Abstract
There is an unmet need to improve the efficacy of platinum-based cancer chemotherapy, which is used in primary and metastatic settings in many cancer types. In bladder cancer, platinum-based chemotherapy leads to better outcomes in a subset of patients when used in the neoadjuvant setting or in combination with immunotherapy for advanced disease. Despite such promising results, extending the benefits of platinum drugs to a greater number of patients is highly desirable. Using the multiomic assessment of cisplatin-responsive and -resistant human bladder cancer cell lines and whole-genome CRISPR screens, we identified puromycin-sensitive aminopeptidase (NPEPPS) as a driver of cisplatin resistance. NPEPPS depletion sensitized resistant bladder cancer cells to cisplatin in vitro and in vivo. Conversely, overexpression of NPEPPS in sensitive cells increased cisplatin resistance. NPEPPS affected treatment response by regulating intracellular cisplatin concentrations. Patient-derived organoids (PDO) generated from bladder cancer samples before and after cisplatin-based treatment, and from patients who did not receive cisplatin, were evaluated for sensitivity to cisplatin, which was concordant with clinical response. In the PDOs, depletion or pharmacologic inhibition of NPEPPS increased cisplatin sensitivity, whereas NPEPPS overexpression conferred resistance. Our data present NPEPPS as a druggable driver of cisplatin resistance by regulating intracellular cisplatin concentrations. SIGNIFICANCE Targeting NPEPPS, which induces cisplatin resistance by controlling intracellular drug concentrations, is a potential strategy to improve patient responses to platinum-based therapies and lower treatment-associated toxicities.
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Affiliation(s)
- Robert T Jones
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Mathijs Scholtes
- Department of Urology, Erasmus MC Cancer Institute, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Andrew Goodspeed
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
- University of Colorado Cancer Center, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Maryam Akbarzadeh
- Department of Urology, Erasmus MC Cancer Institute, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
- Department of Biochemistry, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Saswat Mohapatra
- Cedars-Sinai Samuel Oschin Comprehensive Cancer Institute, Los Angeles, California
| | - Lily Elizabeth Feldman
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Hedvig Vekony
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Annie Jean
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Charlene B Tilton
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Michael V Orman
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Shahla Romal
- Department of Biochemistry, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Cailin Deiter
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Tsung Wai Kan
- Department of Urology, Erasmus MC Cancer Institute, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
- Department of Pathology, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Nathaniel Xander
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Stephanie P Araki
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Molishree Joshi
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
- Functional Genomics Facility, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Mahmood Javaid
- Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Eric T Clambey
- Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Ryan Layer
- Computer Science Department, University of Colorado, Boulder, Colorado
- BioFrontiers Institute, University of Colorado, Boulder, Colorado
| | - Teemu D Laajala
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
- Department of Mathematics and Statistics, University of Turku, Turku, Finland
| | - Sarah J Parker
- Smidt Heart Institute and Advanced Clinical Biosystems Research Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Tokameh Mahmoudi
- Department of Urology, Erasmus MC Cancer Institute, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
- Department of Biochemistry, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
- Department of Pathology, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Tahlita C M Zuiverloon
- Department of Urology, Erasmus MC Cancer Institute, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Dan Theodorescu
- Cedars-Sinai Samuel Oschin Comprehensive Cancer Institute, Los Angeles, California
- Department of Urology, Cedars-Sinai Medical Center, Los Angeles, California
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, California
| | - James C Costello
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
- University of Colorado Cancer Center, University of Colorado Anschutz Medical Campus, Aurora, Colorado
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2
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Darragh LB, Knitz MM, Hu J, Clambey ET, Backus J, Dumit A, Samedi V, Bubak A, Greene C, Waxweiler T, Mehrotra S, Bhatia S, Gadwa J, Bickett T, Piper M, Fakhoury K, Liu A, Petit J, Bowles D, Thaker A, Atiyeh K, Goddard J, Hoyer R, Van Bokhoven A, Jordan K, Jimeno A, D'Alessandro A, Raben D, McDermott JD, Karam SD. Publisher Correction: A phase I/Ib trial and biological correlate analysis of neoadjuvant SBRT with single-dose durvalumab in HPV-unrelated locally advanced HNSCC. Nat Cancer 2024; 5:210. [PMID: 38200246 PMCID: PMC10824658 DOI: 10.1038/s43018-024-00724-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Affiliation(s)
- Laurel B Darragh
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
- Department of Immunology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Michael M Knitz
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Junxiao Hu
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado Denver, Aurora, CO, USA
| | - Eric T Clambey
- Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Jennifer Backus
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Andrew Dumit
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Von Samedi
- Department of Pathology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Andrew Bubak
- Department of Neurology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Casey Greene
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado Denver, Aurora, CO, USA
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Timothy Waxweiler
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Sanjana Mehrotra
- Department of Pathology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Shilpa Bhatia
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Jacob Gadwa
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Thomas Bickett
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Miles Piper
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Kareem Fakhoury
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Arthur Liu
- Department of Radiation Oncology, University of Colorado, Poudre Valley Hospital, Fort Collins, CO, USA
| | - Joshua Petit
- Department of Radiation Oncology, University of Colorado, Poudre Valley Hospital, Fort Collins, CO, USA
| | - Daniel Bowles
- Division of Medical Oncology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Ashesh Thaker
- Department of Radiology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Kimberly Atiyeh
- Department of Otolaryngology Head and Neck Surgery, University of Colorado, Memorial South Hospital, Colorado Springs, CO, USA
| | - Julie Goddard
- Department of Otolaryngology Head and Neck Surgery, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Robert Hoyer
- Division of Medical Oncology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Adrie Van Bokhoven
- Department of Pathology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Kimberly Jordan
- Department of Immunology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Antonio Jimeno
- Division of Medical Oncology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Angelo D'Alessandro
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - David Raben
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Jessica D McDermott
- Division of Medical Oncology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Sana D Karam
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA.
- Department of Immunology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA.
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3
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Assante A, Lkhagvadorj K, Clambey ET, Danhorn T, Merrick DT, Keith RL, New ML, Degregori J, Miller YE, Ghosh M. Reduced Progenitor Function and Altered Immune Landscape Contribute to Field Cancerization of Lung Adenocarcinoma. Am J Respir Crit Care Med 2023; 208:903-905. [PMID: 37639330 DOI: 10.1164/rccm.202303-0585le] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 08/25/2023] [Indexed: 08/31/2023] Open
Affiliation(s)
| | | | | | - Thomas Danhorn
- Department of Biomedical Informatics, University of Colorado Cancer Center, Aurora, Colorado; and
| | | | - Robert L Keith
- Pulmonary Sciences and Critical Care Medicine
- Rocky Mountain Regional Veteran Affairs Medical Center, Aurora, Colorado
| | - Melissa L New
- Pulmonary Sciences and Critical Care Medicine
- Rocky Mountain Regional Veteran Affairs Medical Center, Aurora, Colorado
| | - James Degregori
- Department of Biochemistry and Molecular Genetics, University of Colorado, Aurora, Colorado
| | - York E Miller
- Pulmonary Sciences and Critical Care Medicine
- Rocky Mountain Regional Veteran Affairs Medical Center, Aurora, Colorado
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4
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Vragel G, Gomez BD, Kostelecky RE, Noell KS, Tseng A, Cohen S, Dalwadi M, Medina EM, Nail EA, Goodspeed A, Clambey ET, van Dyk LF. Murine Gammaherpesvirus 68 Efficiently Infects Myeloid Cells Resulting In An Atypical, Restricted Form Of Infection. bioRxiv 2023:2023.06.21.545948. [PMID: 37425871 PMCID: PMC10327065 DOI: 10.1101/2023.06.21.545948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
Abstract
The gammaherpesviruses (γHVs) establish a lifelong infection in their hosts, with the cellular outcome of infection intimately regulated by target cell type. Murine gammaherpesvirus 68 (MHV68), a small animal model of γHV infection, infects macrophages in vivo, resulting in a range of outcomes, from lytic replication to latent infection. Here, we have further investigated the nature of MHV68 macrophage infection using reductionist and primary in vivo infection studies. While MHV68 readily infected the J774 macrophage cell line, viral gene expression and replication were significantly impaired relative to a fully permissive fibroblast cell line. Lytic replication only occurred in a small subset of MHV68-infected J774 cells, despite the fact that these cells were fully competent to support lytic replication following pre-treatment with interleukin-4, a known potentiator of replication in macrophages. In parallel, we harvested virally-infected macrophages at 16 hours after MHV68 infection in vivo and analyzed gene expression by single cell RNA-sequencing. Among virally infected macrophages, only rare (0.25%) cells had lytic cycle gene expression, characterized by detection of multiple lytic cycle RNAs. In contrast, ~50% of virally-infected macrophages were characterized by expression of ORF75A, ORF75B and/or ORF75C, in the absence of other detectable viral RNAs. Selective transcription of the ORF75 locus also occurred in MHV68-infected J774 cells. In total, these studies indicate that MHV68 efficiently infects macrophages, with the majority of cells characterized by an atypical state of restricted viral transcription, and only rare cells undergoing lytic replication.
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Affiliation(s)
- Gabrielle Vragel
- Department of Immunology and Microbiology, University of Colorado Denver | Anschutz Medical Campus, School of Medicine, Aurora, CO, 80045, USA
| | - Brittany D. Gomez
- Department of Immunology and Microbiology, University of Colorado Denver | Anschutz Medical Campus, School of Medicine, Aurora, CO, 80045, USA
| | - Rachael E. Kostelecky
- Department of Immunology and Microbiology, University of Colorado Denver | Anschutz Medical Campus, School of Medicine, Aurora, CO, 80045, USA
| | - Kyra S. Noell
- Department of Immunology and Microbiology, University of Colorado Denver | Anschutz Medical Campus, School of Medicine, Aurora, CO, 80045, USA
- Department of Anesthesiology, University of Colorado Denver | Anschutz Medical Campus, School of Medicine, Aurora, CO, 80045, USA
| | - Ashley Tseng
- Department of Immunology and Microbiology, University of Colorado Denver | Anschutz Medical Campus, School of Medicine, Aurora, CO, 80045, USA
- Department of Anesthesiology, University of Colorado Denver | Anschutz Medical Campus, School of Medicine, Aurora, CO, 80045, USA
| | - Shirli Cohen
- Department of Immunology and Microbiology, University of Colorado Denver | Anschutz Medical Campus, School of Medicine, Aurora, CO, 80045, USA
| | - Manaal Dalwadi
- Department of Immunology and Microbiology, University of Colorado Denver | Anschutz Medical Campus, School of Medicine, Aurora, CO, 80045, USA
| | - Eva M. Medina
- Department of Neurology, University of Colorado Denver | Anschutz Medical Campus, School of Medicine, Aurora, CO, 80045, USA
| | - Elizabeth A. Nail
- Department of Immunology and Microbiology, University of Colorado Denver | Anschutz Medical Campus, School of Medicine, Aurora, CO, 80045, USA
| | - Andrew Goodspeed
- Department of Pharmacology, University of Colorado Denver | Anschutz Medical Campus, School of Medicine, Aurora, CO, 80045, USA
- University of Colorado Cancer Center, University of Colorado Denver | Anschutz Medical Campus, School of Medicine, Aurora, CO, 80045, USA
| | - Eric T. Clambey
- Department of Anesthesiology, University of Colorado Denver | Anschutz Medical Campus, School of Medicine, Aurora, CO, 80045, USA
| | - Linda F. van Dyk
- Department of Immunology and Microbiology, University of Colorado Denver | Anschutz Medical Campus, School of Medicine, Aurora, CO, 80045, USA
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5
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Kleczko EK, Nguyen DT, Marsh KH, Bauer CD, Li AS, Monaghan MLT, Berger MD, Furgeson SB, Gitomer BY, Chonchol MB, Clambey ET, Zimmerman KA, Nemenoff RA, Hopp K. Immune checkpoint activity regulates polycystic kidney disease progression. JCI Insight 2023; 8:e161318. [PMID: 37345660 PMCID: PMC10371237 DOI: 10.1172/jci.insight.161318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 05/12/2023] [Indexed: 06/23/2023] Open
Abstract
Innate and adaptive immune cells modulate the severity of autosomal dominant polycystic kidney disease (ADPKD), a common kidney disease with inadequate treatment options. ADPKD has parallels with cancer, in which immune checkpoint inhibitors have been shown to reactivate CD8+ T cells and slow tumor growth. We have previously shown that in PKD, CD8+ T cell loss worsens disease. This study used orthologous early-onset and adult-onset ADPKD models (Pkd1 p.R3277C) to evaluate the role of immune checkpoints in PKD. Flow cytometry of kidney cells showed increased levels of programmed cell death protein 1 (PD-1)/cytotoxic T lymphocyte associated protein 4 (CTLA-4) on T cells and programmed cell death ligand 1 (PD-L1)/CD80 on macrophages and epithelial cells in Pkd1RC/RC mice versus WT, paralleling disease severity. PD-L1/CD80 was also upregulated in ADPKD human cells and patient kidney tissue versus controls. Genetic PD-L1 loss or treatment with an anti-PD-1 antibody did not impact PKD severity in early-onset or adult-onset ADPKD models. However, treatment with anti-PD-1 plus anti-CTLA-4, blocking 2 immune checkpoints, improved PKD outcomes in adult-onset ADPKD mice; neither monotherapy altered PKD severity. Combination therapy resulted in increased kidney CD8+ T cell numbers/activation and decreased kidney regulatory T cell numbers correlative with PKD severity. Together, our data suggest that immune checkpoint activation is an important feature of and potential novel therapeutic target in ADPKD.
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Affiliation(s)
- Emily K. Kleczko
- Department of Medicine, Division of Renal Diseases and Hypertension
| | - Dustin T. Nguyen
- Department of Medicine, Division of Renal Diseases and Hypertension
| | - Kenneth H. Marsh
- Department of Medicine, Division of Renal Diseases and Hypertension
| | - Colin D. Bauer
- Department of Medicine, Division of Renal Diseases and Hypertension
| | - Amy S. Li
- Department of Medicine, Division of Renal Diseases and Hypertension
| | | | | | - Seth B. Furgeson
- Department of Medicine, Division of Renal Diseases and Hypertension
| | | | - Michel B. Chonchol
- Department of Medicine, Division of Renal Diseases and Hypertension
- Consortium for Fibrosis Research and Translation, and
| | - Eric T. Clambey
- Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Kurt A. Zimmerman
- Department of Internal Medicine, Division of Nephrology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Raphael A. Nemenoff
- Department of Medicine, Division of Renal Diseases and Hypertension
- Consortium for Fibrosis Research and Translation, and
| | - Katharina Hopp
- Department of Medicine, Division of Renal Diseases and Hypertension
- Consortium for Fibrosis Research and Translation, and
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6
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Kleczko EK, Le AT, Hinz TK, Nguyen TT, Navarro A, Hu CJ, Selman AM, Clambey ET, Merrick DT, Lu S, Weiser-Evans M, Nemenoff RA, Heasley LE. Novel EGFR-mutant mouse models of lung adenocarcinoma reveal adaptive immunity requirement for durable osimertinib response. Cancer Lett 2023; 556:216062. [PMID: 36657561 PMCID: PMC10544803 DOI: 10.1016/j.canlet.2023.216062] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 01/05/2023] [Accepted: 01/06/2023] [Indexed: 01/17/2023]
Abstract
Lung cancers bearing oncogenically-mutated EGFR represent a significant fraction of lung adenocarcinomas (LUADs) for which EGFR-targeting tyrosine kinase inhibitors (TKIs) provide a highly effective therapeutic approach. However, these lung cancers eventually acquire resistance and undergo progression within a characteristically broad treatment duration range. Our previous study of EGFR mutant lung cancer patient biopsies highlighted the positive association of a TKI-induced interferon γ transcriptional response with increased time to treatment progression. To test the hypothesis that host immunity contributes to the TKI response, we developed novel genetically-engineered mouse models of EGFR mutant lung cancer bearing exon 19 deletions (del19) or the L860R missense mutation. Both oncogenic EGFR mouse models developed multifocal LUADs from which transplantable cancer cell lines sensitive to the EGFR-specific TKIs, gefitinib and osimertinib, were derived. When propagated orthotopically in the left lungs of syngeneic C57BL/6 mice, deep and durable shrinkage of the cell line-derived tumors was observed in response to daily treatment with osimertinib. By contrast, orthotopic tumors propagated in immune deficient nu/nu or Rag1-/- mice exhibited modest tumor shrinkage followed by rapid progression on continuous osimertinib treatment. Importantly, osimertinib treatment significantly increased intratumoral T cell content and decreased neutrophil content relative to diluent treatment. The findings provide strong evidence supporting the requirement for adaptive immunity in the durable therapeutic control of EGFR mutant lung cancer.
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Affiliation(s)
- Emily K Kleczko
- Departments of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Anh T Le
- Departments of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Trista K Hinz
- Departments of Craniofacial Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; Eastern Colorado VA Healthcare System, Rocky Mountain Regional VA Medical Center, Aurora, CO, USA
| | - Teresa T Nguyen
- Departments of Craniofacial Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Andre Navarro
- Departments of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Cheng-Jun Hu
- Departments of Craniofacial Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Ana M Selman
- Departments of Craniofacial Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Eric T Clambey
- Departments of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Daniel T Merrick
- Departments of Pathology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Sizhao Lu
- Departments of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Mary Weiser-Evans
- Departments of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Raphael A Nemenoff
- Departments of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
| | - Lynn E Heasley
- Departments of Craniofacial Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; Eastern Colorado VA Healthcare System, Rocky Mountain Regional VA Medical Center, Aurora, CO, USA.
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7
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Kleczko EK, Hinz TK, Nguyen TT, Gurule NJ, Navarro A, Le AT, Johnson AM, Kwak J, Polhac DI, Clambey ET, Weiser-Evans M, Merrick DT, Yang MC, Patil T, Schenk EL, Heasley LE, Nemenoff RA. Durable responses to alectinib in murine models of EML4-ALK lung cancer requires adaptive immunity. NPJ Precis Oncol 2023; 7:15. [PMID: 36739466 PMCID: PMC9899278 DOI: 10.1038/s41698-023-00355-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 01/18/2023] [Indexed: 02/06/2023] Open
Abstract
Lung cancers bearing oncogenic EML4-ALK fusions respond to targeted tyrosine kinase inhibitors (TKIs; e.g., alectinib), with variation in the degree of shrinkage and duration of treatment (DOT). However, factors that control this response are not well understood. While the contribution of the immune system in mediating the response to immunotherapy has been extensively investigated, less is known regarding the contribution of immunity to TKI therapeutic responses. We previously demonstrated a positive association of a TKI-induced interferon gamma (IFNγ) transcriptional response with DOT in EGFR-mutant lung cancers. Herein, we used three murine models of EML4-ALK lung cancer to test the role for host immunity in the alectinib therapeutic response. The cell lines (EA1, EA2, EA3) were propagated orthotopically in the lungs of immunocompetent and immunodeficient mice and treated with alectinib. Tumor volumes were serially measured by μCT and immune cell content was measured by flow cytometry and multispectral immunofluorescence. Transcriptional responses to alectinib were assessed by RNAseq and secreted chemokines were measured by ELISA. All cell lines were similarly sensitive to alectinib in vitro and as orthotopic tumors in immunocompetent mice, exhibited durable shrinkage. However, in immunodeficient mice, all tumor models rapidly progressed on TKI therapy. In immunocompetent mice, EA2 tumors exhibited a complete response, whereas EA1 and EA3 tumors retained residual disease that rapidly progressed upon termination of TKI treatment. Prior to treatment, EA2 tumors had greater numbers of CD8+ T cells and fewer neutrophils compared to EA1 tumors. Also, RNAseq of cancer cells recovered from untreated tumors revealed elevated levels of CXCL9 and 10 in EA2 tumors, and higher levels of CXCL1 and 2 in EA1 tumors. Analysis of pre-treatment patient biopsies from ALK+ tumors revealed an association of neutrophil content with shorter time to progression. Combined, these data support a role for adaptive immunity in durability of TKI responses and demonstrate that the immune cell composition of the tumor microenvironment is predictive of response to alectinib therapy.
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Affiliation(s)
- Emily K Kleczko
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Trista K Hinz
- Department of Craniofacial Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Eastern Colorado VA Healthcare System, Rocky Mountain Regional VA Medical Center, Aurora, Colorado, USA
| | - Teresa T Nguyen
- Department of Craniofacial Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Natalia J Gurule
- Department of Craniofacial Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Andre Navarro
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Anh T Le
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Amber M Johnson
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Jeff Kwak
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Diana I Polhac
- Department of Craniofacial Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Eric T Clambey
- Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Mary Weiser-Evans
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Daniel T Merrick
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Michael C Yang
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Tejas Patil
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Erin L Schenk
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
| | - Lynn E Heasley
- Department of Craniofacial Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
- Eastern Colorado VA Healthcare System, Rocky Mountain Regional VA Medical Center, Aurora, Colorado, USA.
| | - Raphael A Nemenoff
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
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8
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Nguyen DT, Kleczko EK, Dwivedi N, Monaghan MLT, Gitomer BY, Chonchol MB, Clambey ET, Nemenoff RA, Klawitter J, Hopp K. The tryptophan-metabolizing enzyme indoleamine 2,3-dioxygenase 1 regulates polycystic kidney disease progression. JCI Insight 2023; 8:e154773. [PMID: 36422996 PMCID: PMC9870090 DOI: 10.1172/jci.insight.154773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 11/21/2022] [Indexed: 11/25/2022] Open
Abstract
Autosomal dominant polycystic kidney disease (ADPKD), the most common monogenic nephropathy, is characterized by phenotypic variability that exceeds genic effects. Dysregulated metabolism and immune cell function are key disease modifiers. The tryptophan metabolites, kynurenines, produced through indoleamine 2,3-dioxygenase 1 (IDO1), are known immunomodulators. Here, we study the role of tryptophan metabolism in PKD using an orthologous disease model (C57BL/6J Pkd1RC/RC). We found elevated kynurenine and IDO1 levels in Pkd1RC/RC kidneys versus wild type. Further, IDO1 levels were increased in ADPKD cell lines. Genetic Ido1 loss in Pkd1RC/RC animals resulted in reduced PKD severity, as measured by cystic index and percentage kidney weight normalized to body weight. Consistent with an immunomodulatory role of kynurenines, Pkd1RC/RC;Ido1-/- mice presented with significant changes in the cystic immune microenvironment (CME) versus controls. Kidney macrophage numbers decreased and CD8+ T cell numbers increased, both known PKD modulators. Also, pharmacological IDO1 inhibition in Pkd1RC/RC mice and kidney-specific Pkd2-knockout mice with rapidly progressive PKD resulted in less severe PKD versus controls, with changes in the CME similar to those in the genetic model. Our data suggest that tryptophan metabolism is dysregulated in ADPKD and that its inhibition results in changes to the CME and slows disease progression, making IDO1 a therapeutic target for ADPKD.
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Affiliation(s)
- Dustin T. Nguyen
- Department of Medicine, Division of Renal Diseases and Hypertension
| | - Emily K. Kleczko
- Department of Medicine, Division of Renal Diseases and Hypertension
| | - Nidhi Dwivedi
- Department of Medicine, Division of Renal Diseases and Hypertension
| | | | | | - Michel B. Chonchol
- Department of Medicine, Division of Renal Diseases and Hypertension
- Consortium for Fibrosis Research and Translation, and
| | - Eric T. Clambey
- Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Raphael A. Nemenoff
- Department of Medicine, Division of Renal Diseases and Hypertension
- Consortium for Fibrosis Research and Translation, and
| | - Jelena Klawitter
- Department of Medicine, Division of Renal Diseases and Hypertension
- Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Katharina Hopp
- Department of Medicine, Division of Renal Diseases and Hypertension
- Consortium for Fibrosis Research and Translation, and
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9
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Darragh LB, Knitz MM, Hu J, Clambey ET, Backus J, Dumit A, Samedi V, Bubak A, Greene C, Waxweiler T, Mehrotra S, Bhatia S, Gadwa J, Bickett T, Piper M, Fakhoury K, Liu A, Petit J, Bowles D, Thaker A, Atiyeh K, Goddard J, Hoyer R, Van Bokhoven A, Jordan K, Jimeno A, D'Alessandro A, Raben D, McDermott JD, Karam SD. Author Correction: A phase I/Ib trial and biological correlate analysis of neoadjuvant SBRT with single-dose durvalumab in HPV-unrelated locally advanced HNSCC. Nat Cancer 2023; 4:148. [PMID: 36577897 PMCID: PMC9886545 DOI: 10.1038/s43018-022-00507-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Laurel B Darragh
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
- Department of Immunology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Michael M Knitz
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Junxiao Hu
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado Denver, Aurora, CO, USA
| | - Eric T Clambey
- Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Jennifer Backus
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Andrew Dumit
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Von Samedi
- Department of Pathology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Andrew Bubak
- Department of Neurology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Casey Greene
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado Denver, Aurora, CO, USA
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Timothy Waxweiler
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Sanjana Mehrotra
- Department of Pathology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Shilpa Bhatia
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Jacob Gadwa
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Thomas Bickett
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Miles Piper
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Kareem Fakhoury
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Arthur Liu
- Department of Radiation Oncology, University of Colorado, Poudre Valley Hospital, Fort Collins, CO, USA
| | - Joshua Petit
- Department of Radiation Oncology, University of Colorado, Poudre Valley Hospital, Fort Collins, CO, USA
| | - Daniel Bowles
- Division of Medical Oncology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Ashesh Thaker
- Department of Radiology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Kimberly Atiyeh
- Department of Otolaryngology Head and Neck Surgery, University of Colorado, Memorial South Hospital, Colorado Springs, CO, USA
| | - Julie Goddard
- Department of Otolaryngology Head and Neck Surgery, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Robert Hoyer
- Division of Medical Oncology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Adrie Van Bokhoven
- Department of Pathology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Kimberly Jordan
- Department of Immunology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Antonio Jimeno
- Division of Medical Oncology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Angelo D'Alessandro
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - David Raben
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Jessica D McDermott
- Division of Medical Oncology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Sana D Karam
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA.
- Department of Immunology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA.
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10
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Darragh LB, Knitz MM, Hu J, Clambey ET, Backus J, Dumit A, Samedi V, Bubak A, Greene C, Waxweiler T, Mehrotra S, Bhatia S, Gadwa J, Bickett T, Piper M, Fakhoury K, Liu A, Petit J, Bowles D, Thaker A, Atiyeh K, Goddard J, Hoyer R, Van Bokhoven A, Jordan K, Jimeno A, D'Alessandro A, Raben D, McDermott JD, Karam SD. A phase I/Ib trial and biological correlate analysis of neoadjuvant SBRT with single-dose durvalumab in HPV-unrelated locally advanced HNSCC. Nat Cancer 2022; 3:1300-1317. [PMID: 36434392 PMCID: PMC9701140 DOI: 10.1038/s43018-022-00450-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 09/21/2022] [Indexed: 11/27/2022]
Abstract
Five-year survival for human papilloma virus-unrelated head and neck squamous cell carcinomas remain below 50%. We assessed the safety of administering combination hypofractionated stereotactic body radiation therapy with single-dose durvalumab (anti-PD-L1) neoadjuvantly (n = 21) ( NCT03635164 ). The primary endpoint of the study was safety, which was met. Secondary endpoints included radiographic, pathologic and objective response; locoregional control; progression-free survival; and overall survival. Among evaluable patients at an early median follow-up of 16 months (448 d or 64 weeks), overall survival was 80.1% with 95% confidence interval (95% CI) (62.0%, 100.0%), locoregional control and progression-free survival were 75.8% with 95% CI (57.5%, 99.8%), and major pathological response or complete response was 75% with 95% exact CI (51.6%, 100.0%). For patients treated with 24 Gy, 89% with 95% CI (57.1%, 100.0%) had MPR or CR. Using high-dimensional multi-omics and spatial data as well as biological correlatives, we show that responders had: (1) an increase in effector T cells; (2) a decrease in immunosuppressive cells; and (3) an increase in antigen presentation post-treatment.
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Affiliation(s)
- Laurel B Darragh
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
- Department of Immunology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Michael M Knitz
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Junxiao Hu
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado Denver, Aurora, CO, USA
| | - Eric T Clambey
- Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Jennifer Backus
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Andrew Dumit
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Von Samedi
- Department of Pathology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Andrew Bubak
- Department of Neurology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Casey Greene
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado Denver, Aurora, CO, USA
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Timothy Waxweiler
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Sanjana Mehrotra
- Department of Pathology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Shilpa Bhatia
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Jacob Gadwa
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Thomas Bickett
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Miles Piper
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Kareem Fakhoury
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Arthur Liu
- Department of Radiation Oncology, University of Colorado, Poudre Valley Hospital, Fort Collins, CO, USA
| | - Joshua Petit
- Department of Radiation Oncology, University of Colorado, Poudre Valley Hospital, Fort Collins, CO, USA
| | - Daniel Bowles
- Division of Medical Oncology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Ashesh Thaker
- Department of Radiology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Kimberly Atiyeh
- Department of Otolaryngology Head and Neck Surgery, University of Colorado, Memorial South Hospital, Colorado Springs, CO, USA
| | - Julie Goddard
- Department of Otolaryngology Head and Neck Surgery, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Robert Hoyer
- Division of Medical Oncology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Adrie Van Bokhoven
- Department of Pathology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Kimberly Jordan
- Department of Immunology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Antonio Jimeno
- Division of Medical Oncology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Angelo D'Alessandro
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - David Raben
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Jessica D McDermott
- Division of Medical Oncology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Sana D Karam
- Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA.
- Department of Immunology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA.
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11
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Niemeyer BF, Sanford B, Gibson JE, Berger JN, Oko LM, Medina E, Clambey ET, van Dyk LF. The gammaherpesvirus 68 viral cyclin facilitates expression of LANA. PLoS Pathog 2021; 17:e1010019. [PMID: 34780571 PMCID: PMC8629379 DOI: 10.1371/journal.ppat.1010019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 11/29/2021] [Accepted: 10/08/2021] [Indexed: 11/29/2022] Open
Abstract
Gammaherpesviruses establish life-long infections within their host and have been shown to be the causative agents of devastating malignancies. Chronic infection within the host is mediated through cycles of transcriptionally quiescent stages of latency with periods of reactivation into detectable lytic and productive infection. The mechanisms that regulate reactivation from latency remain poorly understood. Previously, we defined a critical role for the viral cyclin in promoting reactivation from latency. Disruption of the viral cyclin had no impact on the frequency of cells containing viral genome during latency, yet it remains unclear whether the viral cyclin influences latently infected cells in a qualitative manner. To define the impact of the viral cyclin on properties of latent infection, we utilized a viral cyclin deficient variant expressing a LANA-beta-lactamase fusion protein (LANA::βla), to enumerate both the cellular distribution and frequency of LANA gene expression. Disruption of the viral cyclin did not affect the cellular distribution of latently infected cells, but did result in a significant decrease in the frequency of cells that expressed LANA::βla across multiple tissues and in both immunocompetent and immunodeficient hosts. Strikingly, whereas the cyclin-deficient virus had a reactivation defect in bulk culture, sort purified cyclin-deficient LANA::βla expressing cells were fully capable of reactivation. These data emphasize that the γHV68 latent reservoir is comprised of at least two distinct stages of infection characterized by differential LANA expression, and that a primary function of the viral cyclin is to promote LANA expression during latency, a state associated with ex vivo reactivation competence. Gammaherpesviruses are ubiquitous viruses with oncogenic potential that establish latency for the life of the host. These viruses can emerge from latency through reactivation, a process that is controlled by the immune system. Control of viral latency and reactivation is thought to be critical to prevent γHV-associated disease. This study focuses on a virally-encoded cyclin that is required for reactivation from latency. By characterizing how the viral cyclin influences latent infection in pure cell populations, we find that the viral cyclin has a vital role in promoting viral gene expression during latency. This work provides new insight into the function of a virally encoded cyclin in promoting reactivation from latency.
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Affiliation(s)
- Brian F. Niemeyer
- Immunology and Microbiology Department, University of Colorado Denver School of Medicine, Aurora, Colorado, United States of America
| | - Bridget Sanford
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado, United States of America
| | - Joy E. Gibson
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado, United States of America
| | - Jennifer N. Berger
- Immunology and Microbiology Department, University of Colorado Denver School of Medicine, Aurora, Colorado, United States of America
| | - Lauren M. Oko
- Immunology and Microbiology Department, University of Colorado Denver School of Medicine, Aurora, Colorado, United States of America
| | - Eva Medina
- Immunology and Microbiology Department, University of Colorado Denver School of Medicine, Aurora, Colorado, United States of America
| | - Eric T. Clambey
- Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States of America
| | - Linda F. van Dyk
- Immunology and Microbiology Department, University of Colorado Denver School of Medicine, Aurora, Colorado, United States of America
- * E-mail:
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12
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Bickett TE, Knitz M, Darragh LB, Bhatia S, Van Court B, Gadwa J, Bhuvane S, Piper M, Nguyen D, Tu H, Lenz L, Clambey ET, Barry K, Karam SD. FLT3L Release by Natural Killer Cells Enhances Response to Radioimmunotherapy in Preclinical Models of HNSCC. Clin Cancer Res 2021; 27:6235-6249. [PMID: 34518311 PMCID: PMC8595694 DOI: 10.1158/1078-0432.ccr-21-0971] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 06/12/2021] [Accepted: 09/08/2021] [Indexed: 11/16/2022]
Abstract
PURPOSE Natural killer (NK) cells are type I innate lymphoid cells that are known for their role in killing virally infected cells or cancer cells through direct cytotoxicity. In addition to direct tumor cell killing, NK cells are known to play fundamental roles in the tumor microenvironment through secretion of key cytokines, such as FMS-like tyrosine kinase 3 ligand (FLT3L). Although radiotherapy is the mainstay treatment in most cancers, the role of radiotherapy on NK cells is not well characterized. EXPERIMENTAL DESIGN This study combines radiation, immunotherapies, genetic mouse models, and antibody depletion experiments to identify the role of NK cells in overcoming resistance to radiotherapy in orthotopic models of head and neck squamous cell carcinoma. RESULTS We have found that NK cells are a crucial component in the development of an antitumor response, as depleting them removes efficacy of the previously successful combination treatment of radiotherapy, anti-CD25, and anti-CD137. However, in the absence of NK cells, the effect can be rescued through treatment with FLT3L. But neither radiotherapy with FLT3L therapy alone nor radiotherapy with anti-NKG2A yields any meaningful tumor growth delay. We also identify a role for IL2 in activating NK cells to secrete FLT3L. This activity, we show, is mediated through CD122, the intermediate affinity IL2 receptor, and can be targeted with anti-CD25 therapy. CONCLUSIONS These findings highlight the complexity of using radio-immunotherapies to activate NK cells within the tumor microenvironment, and the importance of NK cells in activating dendritic cells for increased tumor surveillance.
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Affiliation(s)
- Thomas E Bickett
- Department of Radiation Oncology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Michael Knitz
- Department of Radiation Oncology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Laurel B Darragh
- Department of Radiation Oncology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Shilpa Bhatia
- Department of Radiation Oncology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Benjamin Van Court
- Department of Radiation Oncology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Jacob Gadwa
- Department of Radiation Oncology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Shiv Bhuvane
- Department of Radiation Oncology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Miles Piper
- Department of Radiation Oncology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Diemmy Nguyen
- Department of Radiation Oncology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Hua Tu
- Lake Pharma, The Biologics Company, San Francisco, California
| | - Laurel Lenz
- Department of Immunology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Eric T Clambey
- Department of Anesthesiology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Kevin Barry
- Immunotherapy Integrated Research Center, Fred Hutchinson Research Institute, Seattle, Washington
| | - Sana D Karam
- Department of Radiation Oncology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado.
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13
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Knitz MW, Bickett TE, Darragh LB, Oweida AJ, Bhatia S, Van Court B, Bhuvane S, Piper M, Gadwa J, Mueller AC, Nguyen D, Nangia V, Osborne DG, Bai X, Ferrara SE, Boss MK, Goodspeed A, Burchill MA, Tamburini BAJ, Chan ED, Pickering CR, Clambey ET, Karam SD. Targeting resistance to radiation-immunotherapy in cold HNSCCs by modulating the Treg-dendritic cell axis. J Immunother Cancer 2021; 9:e001955. [PMID: 33883256 PMCID: PMC8061827 DOI: 10.1136/jitc-2020-001955] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/10/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Numerous trials combining radiation therapy (RT) and immunotherapy in head and neck squamous cell carcinoma (HNSCC) are failing. Using preclinical immune cold models of HNSCC resistant to RT-immune checkpoint inhibitors, we investigate therapeutic approaches of overcoming such resistance by examining the differential microenvironmental response to RT. METHODS We subjected two HPV-negative orthotopic mouse models of HNSCC to combination RT, regulatory T cells (Treg) depletion, and/or CD137 agonism. Tumor growth was measured and intratumorous and lymph node immune populations were compared among treatment groups. Human gene sets, genetically engineered mouse models DEREG and BATF3-/-, flow and time-of-flight cytometry, RNA-Seq, Treg adoptive transfer studies, and in vitro experiments were used to further evaluate the role of dendritic cells (DCs) and Tregs in these treatments. RESULTS In MOC2 orthotopic tumors, we find no therapeutic benefit to targeting classically defined immunosuppressive myeloids, which increase with RT. In these radioresistant tumors, supplementing combination RT and Treg depletion with anti-CD137 agonism stimulates CD103+ DC activation in tumor-draining lymph nodes as characterized by increases in CD80+ and CCR7+ DCs, resulting in a CD8 T cell-dependent response. Simultaneously, Tregs are reprogrammed to an effector phenotype demonstrated by increases in interferonγ+, tumor necrosis factorα+, PI3K+, pAKT+ and Eomes+ populations as well as decreases in CTLA4+ and NRP-1+ populations. Tumor eradication is observed when RT is increased to an 8 Gy x 5 hypofractionated regimen and combined with anti-CD25+ anti-CD137 treatment. In a human gene set from oral squamous cell carcinoma tumors, high Treg number is associated with earlier recurrence. CONCLUSIONS Regulating Treg functionality and DC activation status within the lymph node is critical for generating a T cell effector response in these highly radioresistant tumors. These findings underscore the plasticity of Tregs and represent a new therapeutic opportunity for reprogramming the tumor microenvironment in HNSCCs resistant to conventional radioimmunotherapy approaches.
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MESH Headings
- Animals
- Antineoplastic Agents, Immunological/pharmacology
- Basic-Leucine Zipper Transcription Factors/genetics
- Basic-Leucine Zipper Transcription Factors/metabolism
- Cell Line, Tumor
- Combined Modality Therapy
- Dendritic Cells/drug effects
- Dendritic Cells/immunology
- Dendritic Cells/metabolism
- Drug Resistance, Neoplasm
- Head and Neck Neoplasms/immunology
- Head and Neck Neoplasms/metabolism
- Head and Neck Neoplasms/pathology
- Head and Neck Neoplasms/therapy
- Immune Checkpoint Inhibitors/pharmacology
- Immunotherapy
- Interleukin-2 Receptor alpha Subunit/antagonists & inhibitors
- Interleukin-2 Receptor alpha Subunit/metabolism
- Lymphocyte Depletion
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Mice, Knockout
- Phenotype
- Radiation Dose Hypofractionation
- Radiation Tolerance
- Repressor Proteins/genetics
- Repressor Proteins/metabolism
- Squamous Cell Carcinoma of Head and Neck/immunology
- Squamous Cell Carcinoma of Head and Neck/metabolism
- Squamous Cell Carcinoma of Head and Neck/pathology
- Squamous Cell Carcinoma of Head and Neck/therapy
- T-Lymphocytes, Regulatory/drug effects
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/metabolism
- Tumor Burden
- Tumor Microenvironment
- Tumor Necrosis Factor Receptor Superfamily, Member 9/antagonists & inhibitors
- Tumor Necrosis Factor Receptor Superfamily, Member 9/metabolism
- Mice
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Affiliation(s)
- Michael W Knitz
- Department of Radiation Oncology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Thomas E Bickett
- Department of Radiation Oncology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Laurel B Darragh
- Department of Radiation Oncology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Ayman J Oweida
- Département de médecine nucléaire et radiobiologie, Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Shilpa Bhatia
- Department of Radiation Oncology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Benjamin Van Court
- Department of Radiation Oncology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Shiv Bhuvane
- Department of Radiation Oncology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Miles Piper
- Department of Radiation Oncology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Jacob Gadwa
- Department of Radiation Oncology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Adam C Mueller
- Department of Radiation Oncology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Diemmy Nguyen
- Department of Radiation Oncology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Varuna Nangia
- Department of Radiation Oncology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Douglas G Osborne
- Department of Dermatology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Xiyuan Bai
- Department of Academic Affairs, National Jewish Health, Denver, Colorado, USA
| | - Sarah E Ferrara
- University of Colorado Comprehensive Cancer Center, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Mary-Keara Boss
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, Colorado, USA
| | - Andrew Goodspeed
- University of Colorado Comprehensive Cancer Center, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Matthew A Burchill
- Division of Gastroenterology & Hepatology, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Beth A Jirón Tamburini
- Division of Gastroenterology & Hepatology, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Edward D Chan
- Department of Academic Affairs, National Jewish Health, Denver, Colorado, USA
| | - Curtis R Pickering
- Department of Head and Neck Surgery, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Eric T Clambey
- Department of Anesthesiology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Sana D Karam
- Department of Radiation Oncology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
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14
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Riggs JB, Medina EM, Perrenoud LJ, Bonilla DL, Clambey ET, van Dyk LF, Berg LJ. Optimized Detection of Acute MHV68 Infection With a Reporter System Identifies Large Peritoneal Macrophages as a Dominant Target of Primary Infection. Front Microbiol 2021; 12:656979. [PMID: 33767688 PMCID: PMC7985543 DOI: 10.3389/fmicb.2021.656979] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 02/15/2021] [Indexed: 11/13/2022] Open
Abstract
Investigating the dynamics of virus-host interactions in vivo remains an important challenge, often limited by the ability to directly identify virally infected cells. Here, we utilize a beta-lactamase activated fluorescent substrate to identify primary targets of murine gammaherpesvirus 68 (MHV68) infection in the peritoneal cavity. By optimizing substrate and detection conditions, we were able to achieve multiparameter characterization of infected cells and the ensuing host response. MHV68 infection leads to a pronounced increase in immune cells, with CD8+ T cells increasing by 3 days, and total infiltrate peaking around 8 days post-infection. MHV68 infection results in near elimination of large peritoneal macrophages (LPMs) by 8 days post-infection, and a concordant increase in small peritoneal macrophages (SPMs) and monocytes. Infection is associated with prolonged changes to myeloid cells, with a distinct population of MHC IIhigh LPMs emerging by 14 days. Targets of MHV68 infection could be readily detected. Between 1 and 3 days post-infection, MHV68 infects ∼5–10% of peritoneal cells, with >75% being LPMs. By 8 days post-infection, the frequency of MHV68 infection is reduced at least 10-fold, with infection primarily in SPMs, with few infected dendritic cells and B cells. Importantly, limiting dilution analysis indicates that at 3 days post-infection, the majority of MHV68-infected cells harbor latent rather than lytic virus at frequencies consistent with those identified based on reporter gene expression. Our findings demonstrate the utility of the beta-lactamase MHV68 reporter system for high throughput single-cell analysis and identify dynamic changes during primary gammaherpesvirus infection.
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Affiliation(s)
- Julianne B Riggs
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Eva M Medina
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Loni J Perrenoud
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | | | - Eric T Clambey
- Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Linda F van Dyk
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Leslie J Berg
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
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15
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Neuwelt AJ, Kimball AK, Johnson AM, Arnold BW, Bullock BL, Kaspar RE, Kleczko EK, Kwak JW, Wu MH, Heasley LE, Doebele RC, Li HY, Nemenoff RA, Clambey ET. Cancer cell-intrinsic expression of MHC II in lung cancer cell lines is actively restricted by MEK/ERK signaling and epigenetic mechanisms. J Immunother Cancer 2021; 8:jitc-2019-000441. [PMID: 32312906 PMCID: PMC7204826 DOI: 10.1136/jitc-2019-000441] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/09/2020] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Programmed death 1/programmed death ligand 1 (PD-1/PD-L1) targeted immunotherapy affords clinical benefit in ~20% of unselected patients with lung cancer. The factor(s) that determine whether a tumor responds or fails to respond to immunotherapy remains an active area of investigation. We have previously defined divergent responsiveness of two KRAS-mutant cell lines to PD-1/PD-L1 blockade using an orthotopic, immunocompetent mouse model. Responsiveness to PD-1/PD-L1 checkpoint blockade correlates with an interferon gamma (IFNγ)-inducible gene signature and major histocompatibility complex class II (MHC II) expression by cancer cells. In the current study, we aim to identify therapeutic targets that can be manipulated in order to enhance cancer-cell-specific MHC II expression. METHODS Responsiveness to IFNγ and induction of MHC II expression was assessed after various treatment conditions in mouse and human non-small cell lung cancer (NSCLC) cell lines using mass cytometric and flow cytometric analysis. RESULTS Single-cell analysis using mass and flow cytometry demonstrated that IFNγ consistently induced PD-L1 and MHC class I (MHC I) across multiple murine and human NSCLC cell lines. In contrast, MHC II showed highly variable induction following IFNγ treatment both between lines and within lines. In mouse models of NSCLC, MHC II induction was inversely correlated with basal levels of phosphorylated extracellular signal-regulated kinase (ERK) 1/2, suggesting potential mitogen-activated protein (MAP) kinase-dependent antagonism of MHC II expression. To test this, cell lines were subjected to varying levels of stimulation with IFNγ, and assessed for MHC II expression in the presence or absence of mitogen-activated protein kinase kinase (MEK) inhibitors. IFNγ treatment in the presence of MEK inhibitors significantly enhanced MHC II induction across multiple lung cancer lines, with minimal impact on expression of either PD-L1 or MHC I. Inhibition of histone deacetylases (HDACs) also enhanced MHC II expression to a more modest extent. Combined MEK and HDAC inhibition led to greater MHC II expression than either treatment alone. CONCLUSIONS These studies emphasize the active inhibitory role that epigenetic and ERK signaling cascades have in restricting cancer cell-intrinsic MHC II expression in NSCLC, and suggest that combinatorial blockade of these pathways may engender new responsiveness to checkpoint therapies.
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Affiliation(s)
- Alexander J Neuwelt
- Medical Oncology, Hunter Holmes McGuire VA Medical Center, Richmond, Virginia, USA
| | - Abigail K Kimball
- Anesthesiology, University of Colorado Denver - Anschutz Medical Campus, Aurora, Colorado, USA
| | - Amber M Johnson
- Medicine, University of Colorado Denver - Anschutz Medical Campus, Aurora, Colorado, USA
| | - Benjamin W Arnold
- Medicine, University of Colorado Denver - Anschutz Medical Campus, Aurora, Colorado, USA
| | - Bonnie L Bullock
- Medicine, University of Colorado Denver - Anschutz Medical Campus, Aurora, Colorado, USA
| | - Rachael E Kaspar
- Medicine, University of Colorado Denver - Anschutz Medical Campus, Aurora, Colorado, USA
| | - Emily K Kleczko
- Medicine, University of Colorado Denver - Anschutz Medical Campus, Aurora, Colorado, USA
| | - Jeff W Kwak
- Medicine, University of Colorado Denver - Anschutz Medical Campus, Aurora, Colorado, USA
| | - Meng-Han Wu
- Medicine, University of Colorado Denver - Anschutz Medical Campus, Aurora, Colorado, USA
| | - Lynn E Heasley
- Craniofacial Biology, University of Colorado Denver - Anschutz Medical Campus, Aurora, Colorado, USA.,VA Eastern Colorado Health Care System, Denver, Colorado, USA
| | - Robert C Doebele
- Medicine, University of Colorado Denver - Anschutz Medical Campus, Aurora, Colorado, USA
| | - Howard Y Li
- Internal Medicine, Division of Pulmonary Disease and Critical Care Medicine, Virginia Commonwealth University, Richmond, Virginia, USA.,Medical Service, Pulmonary Section, Hunter Holmes McGuire VA Medical Center, Richmond, Virginia, USA
| | - Raphael A Nemenoff
- Medicine, University of Colorado Denver - Anschutz Medical Campus, Aurora, Colorado, USA
| | - Eric T Clambey
- Anesthesiology, University of Colorado Denver - Anschutz Medical Campus, Aurora, Colorado, USA
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16
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Korpela SP, Hinz TK, Oweida A, Kim J, Calhoun J, Ferris R, Nemenoff RA, Karam SD, Clambey ET, Heasley LE. Role of epidermal growth factor receptor inhibitor-induced interferon pathway signaling in the head and neck squamous cell carcinoma therapeutic response. J Transl Med 2021; 19:43. [PMID: 33485341 PMCID: PMC7825244 DOI: 10.1186/s12967-021-02706-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 01/13/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Epidermal growth factor receptor (EGFR) is frequently amplified or overexpressed in head and neck squamous cell carcinoma (HNSCC) and is a clinically validated target for the therapeutic antibody, cetuximab, in the management of this cancer. The degree of response to EGFR inhibitors measured by tumor shrinkage varies widely among HNSCC patients, and the biological mechanisms that underlie therapeutic heterogeneity amongst HNSCC patients remain ill-defined. METHODS EGFR-dependent human and murine HNSCC cell lines were treated with the EGFR/ERBB inhibitors, gefitinib and AZD8931, and submitted to RNAseq, GSEA, and qRT-PCR. Conditioned media was analyzed by ELISA and Luminex assays. Murine HNSCC tumors were stained for T cell markers by immunofluorescence. Primary HSNCC patient specimens treated with single agent cetuximab were stained with Vectra multispectral immunofluorescence. RESULTS The transcriptional reprogramming response to EGFR/ERBB-specific TKIs was measured in a panel of EGFR-dependent human HNSCC cell lines and interferon (IFN) α and γ responses identified as top-ranked TKI-induced pathways. Despite similar drug sensitivity, responses among 7 cell lines varied quantitatively and qualitatively, especially regarding the induced chemokine and cytokine profiles. Of note, the anti-tumorigenic chemokine, CXCL10, and the pro-tumorigenic factor, IL6, exhibited wide-ranging and non-overlapping induction. Similarly, AZD8931 exerted potent growth inhibition, IFNα/IFNγ pathway activation, and CXCL10 induction in murine B4B8 HNSCC cells. AZD8931 treatment of immune-competent mice bearing orthotopic B4B8 tumors increased CD8 + T cell content and the therapeutic response was abrogated in nu/nu mice relative to BALB/c mice. Finally, Vectra 3.0 analysis of HNSCC patient tumors prior to and after 3-4 weeks of single agent cetuximab treatment revealed increased CD8 + T cell content in specimens from patients exhibiting a therapeutic response relative to non-responders. CONCLUSIONS The findings reveal heterogeneous, tumor cell-intrinsic, EGFR/ERBB inhibitor-induced IFN pathway activation in HNSCC and suggest that individual tumor responses to oncogene-targeted agents are a sum of direct growth inhibitory effects and variably-induced participation of host immune cells.
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Affiliation(s)
- Sean P Korpela
- Department of Craniofacial Biology, School of Dental Medicine, University of Colorado Anschutz Medical Campus, 12801 E. 17th Ave, Aurora, CO, 80045, USA
| | - Trista K Hinz
- Department of Craniofacial Biology, School of Dental Medicine, University of Colorado Anschutz Medical Campus, 12801 E. 17th Ave, Aurora, CO, 80045, USA
| | - Ayman Oweida
- Department of Nuclear Medicine and Radiobiology, Universite de Sherbrooke, Sherbrooke, Québec, Canada
| | - Jihye Kim
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Jacob Calhoun
- Department of Craniofacial Biology, School of Dental Medicine, University of Colorado Anschutz Medical Campus, 12801 E. 17th Ave, Aurora, CO, 80045, USA
| | - Robert Ferris
- Departments of Otolaryngology and Immunology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Raphael A Nemenoff
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Sana D Karam
- Department of Radiation Oncology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Eric T Clambey
- Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Lynn E Heasley
- Department of Craniofacial Biology, School of Dental Medicine, University of Colorado Anschutz Medical Campus, 12801 E. 17th Ave, Aurora, CO, 80045, USA.
- Eastern Colorado VA Healthcare System, Rocky Mountain Regional VA Medical Center, Aurora, CO, USA.
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17
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Gray JI, Al-Khabouri S, Morton F, Clambey ET, Gapin L, Matsuda JL, Kappler JW, Marrack P, Garside P, Otto TD, MacLeod MKL. Tolerance induction in memory CD4 T cells is partial and reversible. Immunology 2020; 162:68-83. [PMID: 32931017 PMCID: PMC7730012 DOI: 10.1111/imm.13263] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 08/22/2020] [Accepted: 09/01/2020] [Indexed: 12/14/2022] Open
Abstract
Memory T cells respond rapidly in part because they are less reliant on a heightened levels of costimulatory molecules. This enables rapid control of secondary infecting pathogens but presents challenges to efforts to control or silence memory CD4 T cells, for example in antigen‐specific tolerance strategies for autoimmunity. We have examined the transcriptional and functional consequences of reactivating memory CD4 T cells in the absence of an adjuvant. We find that memory CD4 T cells generated by infection or immunisation survive secondary activation with antigen delivered without adjuvant, regardless of their location in secondary lymphoid organs or peripheral tissues. These cells were, however, functionally altered following a tertiary immunisation with antigen and adjuvant, proliferating poorly but maintaining their ability to produce inflammatory cytokines. Transcriptional and cell cycle analysis of these memory CD4 T cells suggests they are unable to commit fully to cell division potentially because of low expression of DNA repair enzymes. In contrast, these memory CD4 T cells could proliferate following tertiary reactivation by viral re‐infection. These data indicate that antigen‐specific tolerogenic strategies must examine multiple parameters of Tcell function, and provide insight into the molecular mechanisms that may lead to deletional tolerance of memory CD4 T cells.
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Affiliation(s)
- Joshua I Gray
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK
| | - Shaima Al-Khabouri
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK
| | - Fraser Morton
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK
| | - Eric T Clambey
- Department of Anesthesiology, University of Colorado Denver, Aurora, Colorado, USA
| | | | | | | | | | - Paul Garside
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK
| | - Thomas D Otto
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK
| | - Megan K L MacLeod
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK
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18
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Laskowski J, Renner B, Pickering MC, Serkova NJ, Smith-Jones PM, Clambey ET, Nemenoff RA, Thurman JM. Complement factor H-deficient mice develop spontaneous hepatic tumors. J Clin Invest 2020; 130:4039-4054. [PMID: 32369457 PMCID: PMC7410061 DOI: 10.1172/jci135105] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 04/22/2020] [Indexed: 12/13/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is difficult to detect, carries a poor prognosis, and is one of few cancers with an increasing yearly incidence. Molecular defects in complement factor H (CFH), a critical regulatory protein of the complement alternative pathway (AP), are typically associated with inflammatory diseases of the eye and kidney. Little is known regarding the role of CFH in controlling complement activation within the liver. While studying aging CFH-deficient (fH-/-) mice, we observed spontaneous hepatic tumor formation in more than 50% of aged fH-/- males. Examination of fH-/- livers (3-24 months) for evidence of complement-mediated inflammation revealed widespread deposition of complement-activation fragments throughout the sinusoids, elevated transaminase levels, increased hepatic CD8+ and F4/80+ cells, overexpression of hepatic mRNA associated with inflammatory signaling pathways, steatosis, and increased collagen deposition. Immunostaining of human HCC biopsies revealed extensive deposition of complement fragments within the tumors. Investigating the Cancer Genome Atlas also revealed that increased CFH mRNA expression is associated with improved survival in patients with HCC, whereas mutations are associated with worse survival. These results indicate that CFH is critical for controlling complement activation in the liver, and in its absence, AP activation leads to chronic inflammation and promotes hepatic carcinogenesis.
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Affiliation(s)
- Jennifer Laskowski
- Department of Medicine, Nephrology and Hypertension, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Brandon Renner
- Department of Medicine, Nephrology and Hypertension, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Matthew C. Pickering
- Centre for Inflammatory Disease, Division of Immunology and Inflammation, Department of Medicine, Imperial College of London, London, United Kingdom
| | - Natalie J. Serkova
- Department of Medicine, Radiology
- Department of Medicine, Radiation Oncology, and
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Peter M. Smith-Jones
- Department of Medicine, Radiology
- Department of Medicine, Radiation Oncology, and
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Eric T. Clambey
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Raphael A. Nemenoff
- Department of Medicine, Nephrology and Hypertension, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Joshua M. Thurman
- Department of Medicine, Nephrology and Hypertension, University of Colorado School of Medicine, Aurora, Colorado, USA
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19
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Tu MM, Lee FYF, Jones RT, Kimball AK, Saravia E, Graziano RF, Coleman B, Menard K, Yan J, Michaud E, Chang H, Abdel-Hafiz HA, Rozhok AI, Duex JE, Agarwal N, Chauca-Diaz A, Johnson LK, Ng TL, Cambier JC, Clambey ET, Costello JC, Korman AJ, Theodorescu D. Abstract IA10: Developing rational combination therapy with checkpoint inhibitors. Clin Cancer Res 2020. [DOI: 10.1158/1557-3265.bladder19-ia10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Targeting antibodies to programmed cell death protein-1 (PD-1) is an effective treatment across multiple cancer types. While a subset of patients receiving these therapies experience favorable responses, many still show disease progression, highlighting the importance of other mechanisms influencing immune responsiveness in these tumors. Therefore, combining therapies that enhance antitumor immunity has been an area of great interest to the entire cancer community. We have recently tackled this challenge in the rapidly evolving field of cancer immunotherapy by using in vivo functional genomics to identify genes whose inhibition potentiates the response to anti-PD-1 immunotherapy. Using an in vivo screening approach with a customized shRNA pooled library, we identified a number of candidates including DDR2 as promising targets for the enhancement of response to anti-PD-1 immunotherapy. In the case of DDR2, using isogenic in vivo murine models across five different tumor histologies—bladder, breast, colon, sarcoma, and melanoma—we show that DDR2 depletion increases sensitivity to anti-PD-1 treatment compared to monotherapy. Combination treatment of tumor-bearing mice with anti-PD-1 and dasatinib, a tyrosine kinase inhibitor of DDR2, also led to tumor load reduction and in some cases, complete clearance. RNAseq and CyTOF analysis revealed higher CD8+ T-cell populations in tumors with DDR2 depletion and those treated with dasatinib when either was combined with anti-PD-1 treatment. Our work provides strong scientific rationale for targeting DDR2 in combination with PD-1 inhibitors. In addition, a number of other potential druggable targets have been identified in our screen that we are currently pursuing.
Citation Format: Megan M. Tu, Francis Y. F. Lee, Robert T. Jones, Abigail K. Kimball, Elizabeth Saravia, Robert F. Graziano, Brianne Coleman, Krista Menard, Jun Yan, Erin Michaud, Han Chang, Hany A. Abdel-Hafiz, Andrii I. Rozhok, Jason E. Duex, Neeraj Agarwal, Ana Chauca-Diaz, Linda K. Johnson, Terry L. Ng, John C. Cambier, Eric T. Clambey, James C. Costello, Alan J. Korman, Dan Theodorescu. Developing rational combination therapy with checkpoint inhibitors [abstract]. In: Proceedings of the AACR Special Conference on Bladder Cancer: Transforming the Field; 2019 May 18-21; Denver, CO. Philadelphia (PA): AACR; Clin Cancer Res 2020;26(15_Suppl):Abstract nr IA10.
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Affiliation(s)
- Megan M. Tu
- 1University of Colorado Anschutz Medical Campus, Aurora, CO,
| | | | - Robert T. Jones
- 1University of Colorado Anschutz Medical Campus, Aurora, CO,
| | | | | | | | | | | | - Jun Yan
- 2Bristol-Myers Squibb, Lawrenceville, NJ,
| | | | - Han Chang
- 2Bristol-Myers Squibb, Lawrenceville, NJ,
| | | | | | - Jason E. Duex
- 1University of Colorado Anschutz Medical Campus, Aurora, CO,
| | - Neeraj Agarwal
- 1University of Colorado Anschutz Medical Campus, Aurora, CO,
| | - Ana Chauca-Diaz
- 1University of Colorado Anschutz Medical Campus, Aurora, CO,
| | | | - Terry L. Ng
- 4The Ottawa Hospital Cancer Centre, Ottawa, ON, Canada
| | | | - Eric T. Clambey
- 1University of Colorado Anschutz Medical Campus, Aurora, CO,
| | | | | | - Dan Theodorescu
- 1University of Colorado Anschutz Medical Campus, Aurora, CO,
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20
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Johnson AM, Bullock BL, Neuwelt AJ, Poczobutt JM, Kaspar RE, Li HY, Kwak JW, Hopp K, Weiser-Evans MCM, Heasley LE, Schenk EL, Clambey ET, Nemenoff RA. Cancer Cell-Intrinsic Expression of MHC Class II Regulates the Immune Microenvironment and Response to Anti-PD-1 Therapy in Lung Adenocarcinoma. J Immunol 2020; 204:2295-2307. [PMID: 32179637 DOI: 10.4049/jimmunol.1900778] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 02/07/2020] [Indexed: 11/19/2022]
Abstract
MHC class II (MHCII) expression is usually restricted to APC but can be expressed by cancer cells. We examined the effect of cancer cell-specific MHCII (csMHCII) expression in lung adenocarcinoma on T cell recruitment to tumors and response to anti-PD-1 therapy using two orthotopic immunocompetent murine models of non-small cell lung cancer: CMT167 (CMT) and Lewis lung carcinoma (LLC). We previously showed that CMT167 tumors are eradicated by anti-PD1 therapy, whereas LLC tumors are resistant. RNA sequencing analysis of cancer cells recovered from tumors revealed that csMHCII correlated with response to anti-PD1 therapy, with immunotherapy-sensitive CMT167 cells being csMHCII positive, whereas resistant LLC cells were csMHCII negative. To test the functional effects of csMHCII, MHCII expression was altered on the cancer cells through loss- and gain-of-function of CIITA, a master regulator of the MHCII pathway. Loss of CIITA in CMT167 decreased csMHCII and converted tumors from anti-PD-1 sensitive to anti-PD-1 resistant. This was associated with lower levels of Th1 cytokines, decreased T cell infiltration, increased B cell numbers, and decreased macrophage recruitment. Conversely, overexpression of CIITA in LLC cells resulted in csMHCII in vitro and in vivo. Enforced expression of CIITA increased T cell infiltration and sensitized tumors to anti-PD-1 therapy. csMHCII expression was also examined in a subset of surgically resected human lung adenocarcinomas by multispectral imaging, which provided a survival benefit and positively correlated with T cell infiltration. These studies demonstrate a functional role for csMHCII in regulating T cell infiltration and sensitivity to anti-PD-1.
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Affiliation(s)
- Amber M Johnson
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Bonnie L Bullock
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Alexander J Neuwelt
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Joanna M Poczobutt
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Rachael E Kaspar
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Howard Y Li
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045.,Department of Veterans Affairs Medical Center, Denver, CO 80220
| | - Jeff W Kwak
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Katharina Hopp
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Mary C M Weiser-Evans
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Lynn E Heasley
- Department of Veterans Affairs Medical Center, Denver, CO 80220.,Department of Craniofacial Biology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045; and
| | - Erin L Schenk
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Eric T Clambey
- Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Raphael A Nemenoff
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045;
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21
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Johnson AM, Bulock BL, Neuwelt AJ, Schenk EL, Clambey ET, Nemenoff RA. Abstract A20: Cancer cell-intrinsic expression of MHCII regulates the immune microenvironment and response to immune therapy in lung adenocarcinoma. Cancer Immunol Res 2020. [DOI: 10.1158/2326-6074.tumimm19-a20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Immune checkpoint inhibitors targeting PD-1/PD-L1 interactions have shown clinical efficacy in the treatment of multiple cancer, including non-small cell lung cancer (NSCLC). However, the factors determining the extent and duration of therapy are incompletely understood. While antigen presentation via MHC class I interacting with CD8+ T cells has been characterized, the role of MHC class II (MHCII) interacting with CD4+ T cells is less well defined. MHCII expression is usually restricted to antigen-presenting cells, but can be expressed by cancer cells. We examined the effect of cancer cell-intrinsic MHC class II (csMHCII) expression in lung adenocarcinoma on T-cell recruitment to tumors and response to anti-PD-1 therapy. The functional significance of altering csMHCII expression was explored using two orthotopic immunocompetent murine models of non-small cell lung cancer: CMT167 (CMT) and Lewis Lung Carcinoma (LLC). We previously showed that CMT167 tumors are eradicated by anti-PD1 therapy, while LLC tumors are resistant. RNA-seq analysis of cancer cells recovered from tumors revealed that csMHCII correlated with response to anti-PD1 therapy, with immunotherapy-sensitive CMT167 cells being csMHCII positive, while resistant LLC cells were csMHCII negative. To test the functional effects of csMHCII, MHCII expression was altered on the cancer cells through loss and gain of function of CIITA, a master regulator of the MHCII pathway. Loss of CIITA in CMT167 decreased csMHCII and converted tumors from immunotherapy sensitive to immunotherapy resistant. This was associated with decreased T-cell infiltration and lower levels of Th1 cytokines. Conversely, overexpression of CIITA in LLC cells resulted in csMHCII in vitro and in vivo. Enforced expression of CIITA increased T-cell infiltration and sensitized tumors to anti-PD-1 therapy. csMHCII expression was also examined in a subset of surgically resected human lung adenocarcinomas by multispectral imaging, and positively correlated with T-cell infiltration. These studies demonstrate a functional role for csMHCII in regulating T-cell infiltration and sensitivity to anti-PD-1.
Citation Format: Amber M. Johnson, Bonnie L. Bulock, Alexander J. Neuwelt, Erin L. Schenk, Eric T. Clambey, Raphael A. Nemenoff. Cancer cell-intrinsic expression of MHCII regulates the immune microenvironment and response to immune therapy in lung adenocarcinoma [abstract]. In: Proceedings of the AACR Special Conference on Tumor Immunology and Immunotherapy; 2019 Nov 17-20; Boston, MA. Philadelphia (PA): AACR; Cancer Immunol Res 2020;8(3 Suppl):Abstract nr A20.
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Affiliation(s)
| | | | | | - Erin L. Schenk
- 1University of Colorado Anschutz Medical Campus, Aurora, CO,
| | - Eric T. Clambey
- 1University of Colorado Anschutz Medical Campus, Aurora, CO,
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22
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Borgers JSW, Tobin RP, Vorwald VM, Smith JM, Davis DM, Kimball AK, Clambey ET, Couts KL, McWilliams JA, Jordan KR, Torphy RJ, Schulick R, McCarter MD. High-Dimensional Analysis of Postsplenectomy Peripheral Immune Cell Changes. Immunohorizons 2020; 4:82-92. [PMID: 32071067 PMCID: PMC7476217 DOI: 10.4049/immunohorizons.1900089] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 01/22/2020] [Indexed: 12/20/2022] Open
Abstract
Although the consequences of splenectomy are well understood in mice, much less is known about the immunologic changes that occur following splenectomy in humans. We sought to characterize the circulating immune cell populations of patients before and after elective splenectomy to determine if these changes are related to postsplenectomy survival outcomes. Retrospective clinical information was collected from 95 patients undergoing elective splenectomy compared with 91 patients undergoing pancreaticoduodenectomy (Whipple procedure). We further analyzed peripheral blood from five patients in the splenectomy group, collected before and after surgery, using single-cell cytometry by time-of-flight mass spectrometry. We compared pre- and postsplenectomy data to characterize both the major and minor immune cell populations in significantly greater detail. Compared with patients undergoing a Whipple procedure, splenectomized patients had significant and long-lasting elevated counts of lymphocytes, monocytes, and basophils. Cytometry by time-of-flight mass spectroscopy analysis demonstrated that the elevated lymphocytes primarily consisted of naive CD4+ T cells and a population of activated CD25+CD56+CD4+ T cells, whereas the elevated monocyte counts were mainly mature, activated monocytes. We also observed a significant increase in the expression of the chemokine receptors CCR6 and CCR4 on several cellular populations. Taken together, these data indicate that significant immunological changes take place following splenectomy. Whereas other groups have compared splenectomized patients to healthy controls, this study compared patients undergoing elective splenectomy to those undergoing a similar major abdominal surgery. Overall, we found that splenectomy results in significant long-lasting changes in circulating immune cell populations and function.
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Affiliation(s)
- Jessica S W Borgers
- Department of Surgery, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045.,Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
| | - Richard P Tobin
- Department of Surgery, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Victoria M Vorwald
- Department of Surgery, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Joshua M Smith
- Department of Surgery, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Dana M Davis
- University of Colorado Cancer Center, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Abigail K Kimball
- Department of Anesthesiology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Eric T Clambey
- Department of Anesthesiology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Kasey L Couts
- Division of Medical Oncology, Department of Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045; and
| | - Jennifer A McWilliams
- Department of Immunology and Microbiology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Kimberly R Jordan
- Department of Immunology and Microbiology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Robert J Torphy
- Department of Surgery, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Richard Schulick
- Department of Surgery, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045.,University of Colorado Cancer Center, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Martin D McCarter
- Department of Surgery, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045; .,University of Colorado Cancer Center, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
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23
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Karuppuchamy T, Tyler CJ, Lundborg LR, Pérez-Jeldres T, Kimball AK, Clambey ET, Jedlicka P, Rivera-Nieves J. Sphingosine-1-Phosphate Lyase Inhibition Alters the S1P Gradient and Ameliorates Crohn's-Like Ileitis by Suppressing Thymocyte Maturation. Inflamm Bowel Dis 2020; 26:216-228. [PMID: 31807751 PMCID: PMC6943703 DOI: 10.1093/ibd/izz174] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Lymphocytes recirculate from tissues to blood following the sphingosine-1-phosphate (S1P) gradient (low in tissues, high in blood), maintained by synthetic and degradative enzymes, among which the S1P lyase (SPL) irreversibly degrades S1P. The role of SPL in the intestine, both during homeostasis and IBD, is poorly understood. We hypothesized that modulation of tissue S1P levels might be advantageous over S1P receptor (S1PR) agonists (eg, fingolimod, ozanimod, etrasimod), as without S1PR engagement there might be less likelihood of potential off-target effects. METHODS First we examined SPL mRNA transcripts and SPL localization in tissues by quantitative reverse transcription polymerase chain reaction and immunohistochemistry. The in vivo effects of the SPL inhibitors 4-deoxypyridoxine hydrochloride (30 mg/L) and 2-acetyl-4 (tetrahydroxybutyl)imidazole (50 mg/L) were assessed through their oral administration to adult TNF∆ARE mice, which spontaneously develop Crohn's-like chronic ileitis. The effect of SPL inhibition on circulating and tissue lymphocytes, transcriptional regulation of proinflammatory cytokines, and on the histological severity of ileitis was additionally examined. Tissue S1P levels were determined by liquid chromatography-mass spectrometry. Mechanistically, the potential effects of high S1P tissue levels on intestinal leukocyte apoptosis were assessed via terminal deoxynucleotidyl transferase dUTP nick end-labeling assay and annexin 5 staining. Finally, we examined the ability of T cells to home to the intestine, along with the effects of SPL inhibition on cellular subsets within immune compartments via flow and mass cytometry. RESULTS S1P lyase was ubiquitously expressed. In the gut, immunohistochemistry predominantly localized it to small intestinal epithelia, although the lamina propria leukocyte fraction had higher mRNA transcripts. Inhibition of SPL markedly increased local intestinal S1P levels, induced peripheral lymphopenia, downregulated proinflammatory cytokines, and attenuated chronic ileitis in mice. SPL inhibition reduced T and myeloid cells in secondary lymphoid tissues and the intestine and decreased naïve T-cell recruitment. The anti-inflammatory activity of SPL inhibition was not mediated by leukocyte apoptosis, nor by interference with the homing of lymphocytes to the intestine, and was independent of its peripheral lymphopenic effect. However, SPL inhibition promoted thymic atrophy and depleted late immature T cells (CD4+CD8+ double positive), with accumulation of mature CD4+CD8- and CD4-CD8+ single-positive cells. CONCLUSIONS Inhibition of the S1P lyase alters the S1P gradient and attenuates chronic ileitis via central immunosuppression. SPL inhibition could represent a potential way to tame an overactive immune response during IBD and other T-cell-mediated chronic inflammatory diseases.
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Affiliation(s)
- Thangaraj Karuppuchamy
- Inflammatory Bowel Disease Center, Division of Gastroenterology, University of California San Diego, La Jolla, California, USA
| | - Christopher J Tyler
- Inflammatory Bowel Disease Center, Division of Gastroenterology, University of California San Diego, La Jolla, California, USA
| | - Luke R Lundborg
- Inflammatory Bowel Disease Center, Division of Gastroenterology, University of California San Diego, La Jolla, California, USA
| | - Tamara Pérez-Jeldres
- Universidad Católica de Chile, Santiago, Chile
- Hospital San Borja Arriarán, Santiago, Chile
| | - Abigail K Kimball
- Department of Anesthesiology Aurora, Colorado, USA
- Department of Pathology, Aurora, Colorado, USA
| | - Eric T Clambey
- Department of Anesthesiology Aurora, Colorado, USA
- Department of Pathology, Aurora, Colorado, USA
| | - Paul Jedlicka
- Department of Department of Pathology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Jesús Rivera-Nieves
- Inflammatory Bowel Disease Center, Division of Gastroenterology, University of California San Diego, La Jolla, California, USA
- Gastroenterology Section, San Diego VA Medical Center, La Jolla Village Drive, San Diego, California, USA
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24
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Tu MM, Lee FY, Jones RT, Kimball AK, Saravia E, Graziano RF, Coleman B, Menard K, Yan J, Michaud E, Chang H, Abdel-Hafiz HA, Rozhok AI, Duex JE, Agarwal N, Chauca-Diaz A, Johnson LK, Ng TL, Cambier JC, Clambey ET, Costello JC, Korman AJ, Theodorescu D. Abstract 4085: DDR2 inhibition enhances response to anti-PD-1 immunotherapy. Cancer Res 2019. [DOI: 10.1158/1538-7445.am2019-4085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Therapies targeting PD-1 are used in multiple cancer types. While a fraction of patients show durable therapeutic responses, most remain unresponsive, highlighting an urgent need to better understand and improve these therapies. Using an in vivo screening approach with a customized shRNA pooled library, we identified DDR2 as a leading target for the enhancement of response to anti-PD-1 immunotherapy. Using isogenic in vivo murine models across five different tumor histologies, bladder, breast, colon, sarcoma and melanoma, we show that DDR2 depletion increases sensitivity to anti-PD-1 treatment compared to monotherapy. Combination treatment of tumor-bearing mice with anti-PD-1 and dasatinib, a tyrosine kinase inhibitor of DDR2, also led to tumor load reduction and in some cases, complete clearance. RNAseq and CyTOF analysis revealed higher CD8+ T cell populations in tumors with DDR2 depletion and those treated with dasatinib when either was combined with anti-PD-1 treatment. Our work provides strong scientific rationale for targeting DDR2 in combination with PD-1 inhibitors.
Citation Format: Megan M. Tu, Francis Y. Lee, Robert T. Jones, Abigail K. Kimball, Elizabeth Saravia, Robert F. Graziano, Brianne Coleman, Krista Menard, Jun Yan, Erin Michaud, Han Chang, Hany A. Abdel-Hafiz, Andrii I. Rozhok, Jason E. Duex, Neeraj Agarwal, Ana Chauca-Diaz, Linda K. Johnson, Terry L. Ng, John C. Cambier, Eric T. Clambey, James C. Costello, Alan J. Korman, Dan Theodorescu. DDR2 inhibition enhances response to anti-PD-1 immunotherapy [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2019; 2019 Mar 29-Apr 3; Atlanta, GA. Philadelphia (PA): AACR; Cancer Res 2019;79(13 Suppl):Abstract nr 4085.
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Affiliation(s)
- Megan M. Tu
- 1University of Colorado Anschutz Medical Campus, CO
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Terry L. Ng
- 1University of Colorado Anschutz Medical Campus, CO
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25
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Bullock BL, Kimball AK, Poczobutt JM, Neuwelt AJ, Li HY, Johnson AM, Kwak JW, Kleczko EK, Kaspar RE, Wagner EK, Hopp K, Schenk EL, Weiser-Evans MC, Clambey ET, Nemenoff RA. Tumor-intrinsic response to IFNγ shapes the tumor microenvironment and anti-PD-1 response in NSCLC. Life Sci Alliance 2019; 2:2/3/e201900328. [PMID: 31133614 PMCID: PMC6537751 DOI: 10.26508/lsa.201900328] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 05/13/2019] [Accepted: 05/14/2019] [Indexed: 12/19/2022] Open
Abstract
Using an immunocompetent mouse model of NSCLC, this study demonstrates that tumor-intrinsic response to IFNγ determines response to anti–PD-1 through alterations in the tumor microenvironment. Targeting PD-1/PD-L1 is only effective in ∼20% of lung cancer patients, but determinants of this response are poorly defined. We previously observed differential responses of two murine K-Ras–mutant lung cancer cell lines to anti–PD-1 therapy: CMT167 tumors were eliminated, whereas Lewis Lung Carcinoma (LLC) tumors were resistant. The goal of this study was to define mechanism(s) mediating this difference. RNA sequencing analysis of cancer cells recovered from lung tumors revealed that CMT167 cells induced an IFNγ signature that was blunted in LLC cells. Silencing Ifngr1 in CMT167 resulted in tumors resistant to IFNγ and anti–PD-1 therapy. Conversely, LLC cells had high basal expression of SOCS1, an inhibitor of IFNγ. Silencing Socs1 increased response to IFNγ in vitro and sensitized tumors to anti–PD-1. This was associated with a reshaped tumor microenvironment, characterized by enhanced T cell infiltration and enrichment of PD-L1hi myeloid cells. These studies demonstrate that targeted enhancement of tumor-intrinsic IFNγ signaling can induce a cascade of changes associated with increased therapeutic vulnerability.
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Affiliation(s)
- Bonnie L Bullock
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Abigail K Kimball
- Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Joanna M Poczobutt
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Alexander J Neuwelt
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Howard Y Li
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.,Veterans Affairs Medical Center, Denver, CO, USA
| | - Amber M Johnson
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Jeff W Kwak
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Emily K Kleczko
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Rachael E Kaspar
- Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Emily K Wagner
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Katharina Hopp
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Erin L Schenk
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Mary Cm Weiser-Evans
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Eric T Clambey
- Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Raphael A Nemenoff
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
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26
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Bhatia S, Oweida A, Lennon S, Darragh LB, Milner D, Phan AV, Mueller AC, Van Court B, Raben D, Serkova NJ, Wang XJ, Jimeno A, Clambey ET, Pasquale EB, Karam SD. Inhibition of EphB4-Ephrin-B2 Signaling Reprograms the Tumor Immune Microenvironment in Head and Neck Cancers. Cancer Res 2019; 79:2722-2735. [PMID: 30894369 PMCID: PMC6522285 DOI: 10.1158/0008-5472.can-18-3257] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 01/15/2019] [Accepted: 03/14/2019] [Indexed: 12/26/2022]
Abstract
Identifying targets present in the tumor microenvironment that contribute to immune evasion has become an important area of research. In this study, we identified EphB4-ephrin-B2 signaling as a regulator of both innate and adaptive components of the immune system. EphB4 belongs to receptor tyrosine kinase family that interacts with ephrin-B2 ligand at sites of cell-cell contact, resulting in bidirectional signaling. We found that EphB4-ephrin-B2 inhibition alone or in combination with radiation (RT) reduced intratumoral regulatory T cells (Tregs) and increased activation of both CD8+ and CD4+Foxp3- T cells compared with the control group in an orthotopic head and neck squamous cell carcinoma (HNSCC) model. We also compared the effect of EphB4-ephrin-B2 inhibition combined with RT with combined anti-PDL1 and RT and observed similar tumor growth suppression, particularly at early time-points. A patient-derived xenograft model showed reduction of tumor-associated M2 macrophages and favored polarization towards an antitumoral M1 phenotype following EphB4-ephrin-B2 inhibition with RT. In vitro, EphB4 signaling inhibition decreased Ki67-expressing Tregs and Treg activation compared with the control group. Overall, our study is the first to implicate the role of EphB4-ephrin-B2 in tumor immune response. Moreover, our findings suggest that EphB4-ephrin-B2 inhibition combined with RT represents a potential alternative for patients with HNSCC and could be particularly beneficial for patients who are ineligible to receive or cannot tolerate anti-PDL1 therapy. SIGNIFICANCE: These findings present EphB4-ephrin-B2 inhibition as an alternative to anti-PDL1 therapeutics that can be used in combination with radiation to induce an effective antitumor immune response in patients with HNSCC.
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Affiliation(s)
- Shilpa Bhatia
- Department of Radiation Oncology, University of Colorado Denver, Anschutz Medical Campus, Aurora, Colorado
| | - Ayman Oweida
- Department of Radiation Oncology, University of Colorado Denver, Anschutz Medical Campus, Aurora, Colorado
| | - Shelby Lennon
- Department of Radiation Oncology, University of Colorado Denver, Anschutz Medical Campus, Aurora, Colorado
| | - Laurel B Darragh
- Department of Radiation Oncology, University of Colorado Denver, Anschutz Medical Campus, Aurora, Colorado
| | - Dallin Milner
- Department of Radiation Oncology, University of Colorado Denver, Anschutz Medical Campus, Aurora, Colorado
| | - Andy V Phan
- Department of Radiation Oncology, University of Colorado Denver, Anschutz Medical Campus, Aurora, Colorado
| | - Adam C Mueller
- Department of Radiation Oncology, University of Colorado Denver, Anschutz Medical Campus, Aurora, Colorado
| | - Benjamin Van Court
- Department of Radiation Oncology, University of Colorado Denver, Anschutz Medical Campus, Aurora, Colorado
| | - David Raben
- Department of Radiation Oncology, University of Colorado Denver, Anschutz Medical Campus, Aurora, Colorado
| | - Natalie J Serkova
- Department of Anesthesiology, University of Colorado Denver, Anschutz Medical Campus, Aurora, Colorado
| | - Xiao-Jing Wang
- Department of Pathology, University of Colorado Denver, Anschutz Medical Campus, Aurora, Colorado
- Veterans Affairs Medical Center, VA Eastern Colorado Health Care System, Aurora, Colorado
| | - Antonio Jimeno
- Division of Medical Oncology, Department of Medicine, University of Colorado Denver, Anschutz Medical Campus, Aurora, Colorado
| | - Eric T Clambey
- Department of Anesthesiology, University of Colorado Denver, Anschutz Medical Campus, Aurora, Colorado
| | - Elena B Pasquale
- Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California
| | - Sana D Karam
- Department of Radiation Oncology, University of Colorado Denver, Anschutz Medical Campus, Aurora, Colorado.
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27
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Kimball AK, Oko LM, Kaspar RE, van Dyk LF, Clambey ET. High-Dimensional Characterization of IL-10 Production and IL-10–Dependent Regulation during Primary Gammaherpesvirus Infection. Immunohorizons 2019; 3:94-109. [DOI: 10.4049/immunohorizons.1800088] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 03/01/2019] [Indexed: 11/19/2022] Open
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28
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Tu MM, Lee FYF, Jones RT, Kimball AK, Saravia E, Graziano RF, Coleman B, Menard K, Yan J, Michaud E, Chang H, Abdel-Hafiz HA, Rozhok AI, Duex JE, Agarwal N, Chauca-Diaz A, Johnson LK, Ng TL, Cambier JC, Clambey ET, Costello JC, Korman AJ, Theodorescu D. Targeting DDR2 enhances tumor response to anti-PD-1 immunotherapy. Sci Adv 2019; 5:eaav2437. [PMID: 30801016 PMCID: PMC6382401 DOI: 10.1126/sciadv.aav2437] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 01/10/2019] [Indexed: 05/10/2023]
Abstract
While a fraction of cancer patients treated with anti-PD-1 show durable therapeutic responses, most remain unresponsive, highlighting the need to better understand and improve these therapies. Using an in vivo screening approach with a customized shRNA pooled library, we identified DDR2 as a leading target for the enhancement of response to anti-PD-1 immunotherapy. Using isogenic in vivo murine models across five different tumor histologies-bladder, breast, colon, sarcoma, and melanoma-we show that DDR2 depletion increases sensitivity to anti-PD-1 treatment compared to monotherapy. Combination treatment of tumor-bearing mice with anti-PD-1 and dasatinib, a tyrosine kinase inhibitor of DDR2, led to tumor load reduction. RNA-seq and CyTOF analysis revealed higher CD8+ T cell populations in tumors with DDR2 depletion and those treated with dasatinib when either was combined with anti-PD-1 treatment. Our work provides strong scientific rationale for targeting DDR2 in combination with PD-1 inhibitors.
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Affiliation(s)
- Megan M. Tu
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | | | - Robert T. Jones
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Abigail K. Kimball
- Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | | | | | - Brianne Coleman
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, USA
| | | | - Jun Yan
- Bristol-Myers Squibb, Lawrenceville, NJ, USA
| | | | - Han Chang
- Bristol-Myers Squibb, Lawrenceville, NJ, USA
| | - Hany A. Abdel-Hafiz
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Andrii I. Rozhok
- Department of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora, CO, USA
| | - Jason E. Duex
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Neeraj Agarwal
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Ana Chauca-Diaz
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Linda K. Johnson
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Terry L. Ng
- Division of Medical Oncology, The Ottawa Hospital Cancer Centre, Ottawa, ON, Canada
| | - John C. Cambier
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Eric T. Clambey
- Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - James C. Costello
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | | | - Dan Theodorescu
- Samuel Oschin Comprehensive Cancer Institute, Los Angeles, CA, USA
- Corresponding author.
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29
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Davenport B, Eberlein J, van der Heide V, Jhun K, Nguyen TT, Victorino F, Trotta A, Chipuk J, Yi Z, Zhang W, Clambey ET, Scott DK, Homann D. Aging of Antiviral CD8 + Memory T Cells Fosters Increased Survival, Metabolic Adaptations, and Lymphoid Tissue Homing. J Immunol 2018; 202:460-475. [PMID: 30552164 DOI: 10.4049/jimmunol.1801277] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Accepted: 11/04/2018] [Indexed: 02/07/2023]
Abstract
Aging of established antiviral T cell memory can foster a series of progressive adaptations that paradoxically improve rather than compromise protective CD8+ T cell immunity. We now provide evidence that this gradual evolution, the pace of which is contingent on the precise context of the primary response, also impinges on the molecular mechanisms that regulate CD8+ memory T cell (TM) homeostasis. Over time, CD8+ TM generated in the wake of an acute infection with the natural murine pathogen lymphocytic choriomeningitis virus become more resistant to apoptosis and acquire enhanced cytokine responsiveness without adjusting their homeostatic proliferation rates; concurrent metabolic adaptations promote increased CD8+ TM quiescence and fitness but also impart the reacquisition of a partial effector-like metabolic profile; and a gradual redistribution of aging CD8+ TM from blood and nonlymphoid tissues to lymphatic organs results in CD8+ TM accumulations in bone marrow, splenic white pulp, and, particularly, lymph nodes. Altogether, these data demonstrate how temporal alterations of fundamental homeostatic determinants converge to render aged CD8+ TM poised for greater recall responses.
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Affiliation(s)
- Bennett Davenport
- Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045.,Barbara Davis Center for Childhood Diabetes, University of Colorado Denver, Aurora, CO 80045.,Integrated Department of Immunology, University of Colorado Denver and National Jewish Health, Denver, CO 80045.,Diabetes, Obesity and Metabolism Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029.,Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029
| | - Jens Eberlein
- Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045.,Barbara Davis Center for Childhood Diabetes, University of Colorado Denver, Aurora, CO 80045
| | - Verena van der Heide
- Diabetes, Obesity and Metabolism Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029.,Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029
| | - Kevin Jhun
- Diabetes, Obesity and Metabolism Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029.,Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029
| | - Tom T Nguyen
- Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045.,Barbara Davis Center for Childhood Diabetes, University of Colorado Denver, Aurora, CO 80045
| | - Francisco Victorino
- Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045.,Barbara Davis Center for Childhood Diabetes, University of Colorado Denver, Aurora, CO 80045.,Integrated Department of Immunology, University of Colorado Denver and National Jewish Health, Denver, CO 80045
| | - Andrew Trotta
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029; and
| | - Jerry Chipuk
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029; and
| | - Zhengzi Yi
- Bioinformatics Laboratory, Icahn School of Medicine at Mount Sinai, New York, NY 10029
| | - Weijia Zhang
- Bioinformatics Laboratory, Icahn School of Medicine at Mount Sinai, New York, NY 10029
| | - Eric T Clambey
- Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045.,Integrated Department of Immunology, University of Colorado Denver and National Jewish Health, Denver, CO 80045
| | - Donald K Scott
- Diabetes, Obesity and Metabolism Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029
| | - Dirk Homann
- Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045; .,Barbara Davis Center for Childhood Diabetes, University of Colorado Denver, Aurora, CO 80045.,Integrated Department of Immunology, University of Colorado Denver and National Jewish Health, Denver, CO 80045.,Diabetes, Obesity and Metabolism Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029.,Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029
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30
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Kleczko EK, Marsh KH, Tyler LC, Furgeson SB, Bullock BL, Altmann CJ, Miyazaki M, Gitomer BY, Harris PC, Weiser-Evans MCM, Chonchol MB, Clambey ET, Nemenoff RA, Hopp K. CD8 + T cells modulate autosomal dominant polycystic kidney disease progression. Kidney Int 2018; 94:1127-1140. [PMID: 30249452 PMCID: PMC6319903 DOI: 10.1016/j.kint.2018.06.025] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Revised: 06/18/2018] [Accepted: 06/21/2018] [Indexed: 12/11/2022]
Abstract
Autosomal dominant polycystic kidney disease (ADPKD) is the most prevalent inherited nephropathy. To date, therapies alleviating the disease have largely focused on targeting abnormalities in renal epithelial cell signaling. ADPKD has many hallmarks of cancer, where targeting T cells has brought novel therapeutic interventions. However, little is known about the role and therapeutic potential of T cells in ADPKD. Here, we used an orthologous ADPKD model, Pkd1 p.R3277C (RC), to begin to define the role of T cells in disease progression. Using flow cytometry, we found progressive increases in renal CD8+ and CD4+ T cells, correlative with disease severity, but with selective activation of CD8+ T cells. By immunofluorescence, T cells specifically localized to cystic lesions and increased levels of T-cell recruiting chemokines (CXCL9/CXCL10) were detected by qPCR/in situ hybridization in the kidneys of mice, patients, and ADPKD epithelial cell lines. Importantly, immunodepletion of CD8+ T cells from one to three months in C57Bl/6 Pkd1RC/RC mice resulted in worsening of ADPKD pathology, decreased apoptosis, and increased proliferation compared to IgG-control, consistent with a reno-protective role of CD8+ T cells. Thus, our studies suggest a functional role for T cells, specifically CD8+ T cells, in ADPKD progression. Hence, targeting this pathway using immune-oncology agents may represent a novel therapeutic approach for ADPKD.
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Affiliation(s)
- Emily K Kleczko
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Kenneth H Marsh
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Logan C Tyler
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Seth B Furgeson
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA; Consortium for Fibrosis Research and Translation, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Bonnie L Bullock
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Christopher J Altmann
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Makoto Miyazaki
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Berenice Y Gitomer
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Peter C Harris
- Department of Medicine, Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota, USA
| | - Mary C M Weiser-Evans
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA; Consortium for Fibrosis Research and Translation, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Michel B Chonchol
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA; Consortium for Fibrosis Research and Translation, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Eric T Clambey
- Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Raphael A Nemenoff
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA; Consortium for Fibrosis Research and Translation, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.
| | - Katharina Hopp
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA; Consortium for Fibrosis Research and Translation, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.
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Neudecker V, Brodsky KS, Clambey ET, Schmidt EP, Packard TA, Davenport B, Standiford TJ, Weng T, Fletcher AA, Barthel L, Masterson JC, Furuta GT, Cai C, Blackburn MR, Ginde AA, Graner MW, Janssen WJ, Zemans RL, Evans CM, Burnham EL, Homann D, Moss M, Kreth S, Zacharowski K, Henson PM, Eltzschig HK. Neutrophil transfer of miR-223 to lung epithelial cells dampens acute lung injury in mice. Sci Transl Med 2018; 9:9/408/eaah5360. [PMID: 28931657 DOI: 10.1126/scitranslmed.aah5360] [Citation(s) in RCA: 139] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 05/23/2017] [Indexed: 12/11/2022]
Abstract
Intercellular transfer of microRNAs can mediate communication between critical effector cells. We hypothesized that transfer of neutrophil-derived microRNAs to pulmonary epithelial cells could alter mucosal gene expression during acute lung injury. Pulmonary-epithelial microRNA profiling during coculture of alveolar epithelial cells with polymorphonuclear neutrophils (PMNs) revealed a selective increase in lung epithelial cell expression of microRNA-223 (miR-223). Analysis of PMN-derived supernatants showed activation-dependent release of miR-223 and subsequent transfer to alveolar epithelial cells during coculture in vitro or after ventilator-induced acute lung injury in mice. Genetic studies indicated that miR-223 deficiency was associated with severe lung inflammation, whereas pulmonary overexpression of miR-223 in mice resulted in protection during acute lung injury induced by mechanical ventilation or by infection with Staphylococcus aureus Studies of putative miR-223 gene targets implicated repression of poly(adenosine diphosphate-ribose) polymerase-1 (PARP-1) in the miR-223-dependent attenuation of lung inflammation. Together, these findings suggest that intercellular transfer of miR-223 from neutrophils to pulmonary epithelial cells may dampen acute lung injury through repression of PARP-1.
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Affiliation(s)
- Viola Neudecker
- Organ Protection Program, Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045, USA. .,Department of Anesthesiology, University Hospital, Ludwig-Maximilian University of Munich, 81377 Munich, Germany
| | - Kelley S Brodsky
- Organ Protection Program, Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045, USA
| | - Eric T Clambey
- Organ Protection Program, Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045, USA
| | - Eric P Schmidt
- Organ Protection Program, Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045, USA.,Program in Translational Lung Research, Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Thomas A Packard
- Department of Immunology and Microbiology, University of Colorado Denver School of Medicine and National Jewish Health, Denver, CO 80206, USA
| | - Bennett Davenport
- Organ Protection Program, Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045, USA
| | - Theodore J Standiford
- Division of Pulmonary and Critical Care Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Tingting Weng
- Department of Biochemistry and Molecular Biology, University of Texas-Houston Medical School, Houston, TX 77030, USA
| | - Ashley A Fletcher
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Lea Barthel
- Department of Medicine, National Jewish Health, Denver, CO 80206, USA
| | - Joanne C Masterson
- Section of Pediatric Gastroenterology, Hepatology and Nutrition, Gastrointestinal Eosinophilic Diseases Program, Department of Pediatrics, Digestive Health Institute, Children's Hospital Colorado; Mucosal Inflammation Program, Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Glenn T Furuta
- Section of Pediatric Gastroenterology, Hepatology and Nutrition, Gastrointestinal Eosinophilic Diseases Program, Department of Pediatrics, Digestive Health Institute, Children's Hospital Colorado; Mucosal Inflammation Program, Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Chunyan Cai
- Department of Internal Medicine, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Michael R Blackburn
- Department of Biochemistry and Molecular Biology, University of Texas-Houston Medical School, Houston, TX 77030, USA
| | - Adit A Ginde
- Organ Protection Program, Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045, USA.,Department of Emergency Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Michael W Graner
- Department of Neurosurgery, University of Colorado Denver, Aurora, CO 80045, USA
| | - William J Janssen
- Organ Protection Program, Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045, USA.,Department of Medicine, National Jewish Health, Denver, CO 80206, USA
| | - Rachel L Zemans
- Department of Medicine, National Jewish Health, Denver, CO 80206, USA
| | - Christopher M Evans
- Organ Protection Program, Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045, USA.,Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Ellen L Burnham
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Dirk Homann
- Organ Protection Program, Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045, USA
| | - Marc Moss
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Simone Kreth
- Department of Anesthesiology, University Hospital, Ludwig-Maximilian University of Munich, 81377 Munich, Germany
| | - Kai Zacharowski
- Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, 60590 Frankfurt am Main, Germany
| | - Peter M Henson
- Organ Protection Program, Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045, USA.,Department of Immunology and Microbiology, University of Colorado Denver School of Medicine and National Jewish Health, Denver, CO 80206, USA
| | - Holger K Eltzschig
- Organ Protection Program, Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045, USA.,Department of Anesthesiology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
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Clambey ET, Johnson AM, Neuwelt A, Kimball AK, Kaspar R, Bullock B, Kwak J, Poczobutt J, Li H, Nemenoff R. Tumor cell-intrinsic MHC class II expression as a determinant of immunotherapy responsiveness in an orthotopic mouse model of non-small cell lung cancer. The Journal of Immunology 2018. [DOI: 10.4049/jimmunol.200.supp.57.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
Lung cancer is the leading cause of cancer-related deaths worldwide and the second most common cancer among both men and women in the United States. Immunotherapy regimens that disrupt the inhibitory PD-1/PD-L1 axis have recently emerged as promising treatments that can unleash anti-tumor immunity against a wide range of cancers, including a subset of lung cancers. How these therapies elicit potent anti-tumor immunity remains controversial, with markers for immunotherapy-sensitivity still an active area of investigation. To study determinants of lung cancer growth in vivo we studied two orthotopic mouse models of non-small cell lung cancer (NSCLC). These Kras-mutant tumor lines dramatically differ in their response to immunotherapy: CMT167 tumor cells are exquisitely susceptible to PD-1/PD-L1 targeted immunotherapy whereas LLC tumor cells are immunotherapy-resistant. Immunotherapy-sensitive cells showed induction of the MHC class II antigen processing and presentation pathway in vitro and in vivo, and were capable of stimulating CD4 T cells directly in ex vivo co-culture. To study the impact of tumor cell-intrinsic MHC class II induction, we used RNA interference to knockdown CIITA, a transcriptional inducer of the MHC class II pathway. CIITA knockdown in immunotherapy-sensitive cells impaired the induction of tumor cell-intrinsic MHC class II in vitro and abrogated CD4 T cell stimulation in co-culture. CIITA knockdown further converted tumors from immunotherapy-sensitive to immunotherapy-resistant. These studies identify tumor cell-intrinsic expression of MHC class II as a potential direct target for CD4 T cell recognition that may promote sensitivity to PD-1/PD-L1 blockade.
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Kimball AK, Oko LM, Bullock BL, Nemenoff RA, van Dyk LF, Clambey ET. A Beginner's Guide to Analyzing and Visualizing Mass Cytometry Data. J Immunol 2018; 200:3-22. [PMID: 29255085 PMCID: PMC5765874 DOI: 10.4049/jimmunol.1701494] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 10/30/2017] [Indexed: 12/15/2022]
Abstract
Mass cytometry has revolutionized the study of cellular and phenotypic diversity, significantly expanding the number of phenotypic and functional characteristics that can be measured at the single-cell level. This high-dimensional analysis platform has necessitated the development of new data analysis approaches. Many of these algorithms circumvent traditional approaches used in flow cytometric analysis, fundamentally changing the way these data are analyzed and interpreted. For the beginner, however, the large number of algorithms that have been developed, as well as the lack of consensus on best practices for analyzing these data, raise multiple questions: Which algorithm is the best for analyzing a dataset? How do different algorithms compare? How can one move beyond data visualization to gain new biological insights? In this article, we describe our experiences as recent adopters of mass cytometry. By analyzing a single dataset using five cytometry by time-of-flight analysis platforms (viSNE, SPADE, X-shift, PhenoGraph, and Citrus), we identify important considerations and challenges that users should be aware of when using these different methods and common and unique insights that can be revealed by these different methods. By providing annotated workflow and figures, these analyses present a practical guide for investigators analyzing high-dimensional datasets. In total, these analyses emphasize the benefits of integrating multiple cytometry by time-of-flight analysis algorithms to gain complementary insights into these high-dimensional datasets.
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Affiliation(s)
- Abigail K Kimball
- Department of Anesthesiology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Lauren M Oko
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045; and
| | - Bonnie L Bullock
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Raphael A Nemenoff
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Linda F van Dyk
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045; and
| | - Eric T Clambey
- Department of Anesthesiology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045;
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34
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Kwak JW, Laskowski J, Li HY, McSharry MV, Sippel TR, Bullock BL, Johnson AM, Poczobutt JM, Neuwelt AJ, Malkoski SP, Weiser-Evans MC, Lambris JD, Clambey ET, Thurman JM, Nemenoff RA. Complement Activation via a C3a Receptor Pathway Alters CD4 + T Lymphocytes and Mediates Lung Cancer Progression. Cancer Res 2017; 78:143-156. [PMID: 29118090 DOI: 10.1158/0008-5472.can-17-0240] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 06/12/2017] [Accepted: 11/01/2017] [Indexed: 11/16/2022]
Abstract
The complement cascade is a part of the innate immune system that acts primarily to remove pathogens and injured cells. However, complement activation is also peculiarly associated with tumor progression. Here we report mechanistic insights into this association in multiple immunocompetent orthotopic models of lung cancer. After tumor engraftment, we observed systemic activation of the complement cascade as reflected by elevated levels of the key regulator C3a. Notably, growth of primary tumors and metastases was both strongly inhibited in C3-deficient mice (C3-/- mice), with tumors undetectable in many subjects. Growth inhibition was associated with increased numbers of IFNγ+/TNFα+/IL10+ CD4+ and CD8+ T cells. Immunodepletion of CD4+ but not CD8+ T cells in tumor-bearing subjects reversed the inhibitory effects of C3 deletion. Similarly, antagonists of the C3a or C5a receptors inhibited tumor growth. Investigations using multiple tumor cell lines in the orthotopic model suggested the involvement of a C3/C3 receptor autocrine signaling loop in regulating tumor growth. Overall, our findings offer functional evidence that complement activation serves as a critical immunomodulator in lung cancer progression, acting to drive immune escape via a C3/C5-dependent pathway.Significance: This provocative study suggests that inhibiting complement activation may heighten immunotherapeutic responses in lung cancer, offering findings with immediate implications, given the existing clinical availability of complement antagonists. Cancer Res; 78(1); 143-56. ©2017 AACR.
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Affiliation(s)
- Jeff W Kwak
- Department of Medicine, University of Colorado Denver, Aurora, Colorado
| | | | - Howard Y Li
- Department of Medicine, University of Colorado Denver, Aurora, Colorado.,Veterans Affairs Medical Center, Denver, Colorado
| | - Maria V McSharry
- Department of Medicine, University of Colorado Denver, Aurora, Colorado
| | - Trisha R Sippel
- Department of Medicine, University of Colorado Denver, Aurora, Colorado
| | - Bonnie L Bullock
- Department of Medicine, University of Colorado Denver, Aurora, Colorado
| | - Amber M Johnson
- Department of Medicine, University of Colorado Denver, Aurora, Colorado
| | | | | | | | - Mary C Weiser-Evans
- Department of Medicine, University of Colorado Denver, Aurora, Colorado.,Department of Pharmacology, University of Colorado Denver, Aurora, Colorado
| | - John D Lambris
- Department of Anesthesiology, University of Colorado Denver, Aurora, Colorado
| | - Eric T Clambey
- Department of Anesthesiology, University of Colorado Denver, Aurora, Colorado
| | - Joshua M Thurman
- Department of Medicine, University of Colorado Denver, Aurora, Colorado
| | - Raphael A Nemenoff
- Department of Medicine, University of Colorado Denver, Aurora, Colorado. .,Department of Pharmacology, University of Colorado Denver, Aurora, Colorado
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35
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Li HY, McSharry M, Bullock B, Nguyen TT, Kwak J, Poczobutt JM, Sippel TR, Heasley LE, Weiser-Evans MC, Clambey ET, Nemenoff RA. The Tumor Microenvironment Regulates Sensitivity of Murine Lung Tumors to PD-1/PD-L1 Antibody Blockade. Cancer Immunol Res 2017; 5:767-777. [PMID: 28819064 DOI: 10.1158/2326-6066.cir-16-0365] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 04/21/2017] [Accepted: 07/28/2017] [Indexed: 01/12/2023]
Abstract
Immune checkpoint inhibitors targeting the interaction between programmed cell death-1 (PD-1) and its ligand PD-L1 induce tumor regression in a subset of non-small cell lung cancer patients. However, clinical response rates are less than 25%. Evaluation of combinations of immunotherapy with existing therapies requires appropriate preclinical animal models. In this study, murine lung cancer cells (CMT167 and LLC) were implanted either orthotopically in the lung or subcutaneously in syngeneic mice, and response to anti-PD-1/PD-L1 therapy was determined. Anti-PD-1/PD-L1 therapy inhibited CMT167 orthotopic lung tumors by 95%. The same treatments inhibited CMT167 subcutaneous tumors by only 30% and LLC orthotopic lung tumors by 35%. CMT167 subcutaneous tumors had more Foxp3+ CD4+ T cells and fewer PD-1+ CD4+ T cells compared with CMT167 orthotopic tumors. Flow cytometric analysis also demonstrated increased abundance of PD-L1high cells in the tumor microenvironment in CMT167 tumor-bearing lungs compared with CMT167 subcutaneous tumors or LLC tumor-bearing lungs. Silencing PD-L1 expression in CMT167 cells resulted in smaller orthotopic tumors that remained sensitive to anti-PD-L1 therapy, whereas implantation of CMT167 cells into PD-L1- mice blocked orthotopic tumor growth, indicating a role for PD-L1 in both the cancer cell and the microenvironment. These findings indicate that the response of cancer cells to immunotherapy will be determined by both intrinsic properties of the cancer cells and specific interactions with the microenvironment. Experimental models that accurately recapitulate the lung tumor microenvironment are useful for evaluation of immunotherapeutic agents. Cancer Immunol Res; 5(9); 767-77. ©2017 AACR.
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Affiliation(s)
- Howard Y Li
- Department of Medicine, Veterans Affairs Medical Center, Denver, Colorado. .,Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Maria McSharry
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Bonnie Bullock
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Teresa T Nguyen
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Jeff Kwak
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Joanna M Poczobutt
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Trisha R Sippel
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Lynn E Heasley
- Department of Dental Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Mary C Weiser-Evans
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Eric T Clambey
- Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Raphael A Nemenoff
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
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Clambey ET, Kimball AK, Baessler A, Oko LM, Niemeyer BF, Van Dyk LF. Tissue-specific requirements for IL-10 in maintaining homeostasis in response to chronic virus infection. The Journal of Immunology 2017. [DOI: 10.4049/jimmunol.198.supp.78.24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
Herpesviruses have co-evolved with their hosts for million of years, establishing an intimate balancing act of lifelong infection with minimal damage to the host. Interleukin (IL)-10 is a major inhibitory cytokine that has been usurped by many herpesviruses to facilitate infection. Here we tested the consequence of IL-10 deficiency on the outcome of murine gammaherpesvirus 68 (γHV68) infection, a small animal model of γHV pathogenesis. While IL-10 deficiency had minimal impact on the control of virus infection, IL-10 deficient mice showed hyper-activation of the immune response with increased levels of T cell activation, effector T cells and prolonged neutrophilia in the infected lung. IL-10 further had a non-redundant role in limiting intestinal inflammation with chronically infected mice showing a prolonged failure to thrive following infection, associated with enhanced colonic Th1 responses. CD4 T cells were a prominent source of IL10 during acute and chronic infection, with IL10+ interferon-gamma+ FoxP3- type 1 regulatory CD4 T cells as the major early source of IL10. High-dimensional mass cytometric analysis of IL10 expressing cells, and IL10 responsive cells, identified a constellation of phenotypes that correlate with robust IL10 expression, and further identified direct and indirect targets of IL10. In total, these data demonstrate the context dependent role of IL10 in constraining the antiviral host response and identify IL10-dependent and –independent regulatory pathways in regulating chronic herpesvirus infection.
This research was funded by grants from the American Heart Association, Crohn’s and Colitis Foundation of America and the UC Department of Anesthesiology (ETC).
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Henry CJ, Casas-Selves M, Kim J, Zaberezhnyy V, Aghili L, Daniel AE, Jimenez L, Azam T, McNamee EN, Clambey ET, Klawitter J, Serkova NJ, Tan AC, Dinarello CA, DeGregori J. Blunting age-associated chronic inflammation preserves hematopoiesis and immunity and reduces leukemogenesis. The Journal of Immunology 2017. [DOI: 10.4049/jimmunol.198.supp.60.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
Aging is the single most important prognostic factor for the development of many cancers. While mutational accumulation may increase the risk of cancer in aged individuals, declining immunity due to chronic inflammation is also a likely contributing factor.
We have demonstrated that reducing aging-associated chronic inflammation abrogates fitness declines in B-progenitor cells, and significantly reduces leukemogenesis in aged mice (Henry et al., JCI, 2015). In addition to preserving the function of B-progenitor cells, subsequent studies have revealed that reducing chronic inflammation in aged mice augments immune responses. Specifically, reducing inflammation in aged mice (≥22 months) results in a two-fold reduction in the number of splenic M2 macrophage and T-regulatory cell populations, as well as, a three-fold reduction in the surface expression of the inhibitory protein PD-L1 on innate immune cells. Reducing chronic inflammation in aged mice also results in a three-fold increase in the percentage of interferon-gamma producing CD4+ and CD8+ T-cell lymphocytes when stimulated. These phenotypes were observed in aged, anti-inflammatory transgenic mice (alpha-1-anti-trypsin and interleukin-37) and in geriatric mice (≥27 months) treated with recombinant interleukin-37. Overall, these findings suggest that reducing chronic inflammation in aged populations can rejuvenate hematopoiesis and immunity, while also creating a less permissive environment for leukemogenesis.
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Westrich JA, Cicchini L, Vermeer DW, Berger JN, Clambey ET, Lee JH, Pyeon D. Abstract A07: CXCL14 expression inhibits tumor growth by reversing human papillomavirus-mediated immune suppression. Cancer Immunol Res 2017. [DOI: 10.1158/2326-6074.tumimm16-a07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Human papillomaviruses (HPVs) are causally associated with over 5% of all human cancers including ~25% of head and neck cancers (HNC) and ~100% of cervical cancers (CxCa), resulting in approximately half a million deaths every year. Furthermore, HPV-positive HNC incidence is increasing at an epidemic rate. During decades of cancer progression, HPV persists, evades host immune surveillance, and continuously contributes to host cell transformation. However, little is known about the mechanisms of disease progression driven by HPV, particularly in the context of host immunity. We recently reported that expression of the chemokine CXCL14 is epigenetically repressed by the HPV oncoprotein E7 and that restoration of CXCL14 expression in HPV-positive HNC cells suppresses tumor growth in immunocompetent syngeneic mice, but not in immunodeficient Rag1-/- mice (PMID: 27143385). We also revealed that natural killer (NK), CD4+ T, and CD8+ T cell populations were significantly decreased in tumor-draining lymph nodes (TDLNs) compared to distal lymph nodes (dLNs) of tumor bearing mice. However, Cxcl14 expression restored NK, CD4+ T, and CD8+ T cell populations in the TDLNs to similar levels observed in the dLN. To better understand the mechanism by which CXCL14 induces antitumor immune responses, we performed a large scale immune cell profiling with dLNs and TDLNs from mice injected with HPV-positive mouse oropharyngeal epithelial cells with or without Cxcl14 expression. The multicolor flow cytometry results showed that B cell populations are significantly decreased in TDLNs by Cxcl14 expression, while populations of myeloid immune cells remain largely unchanged. To determine if NK or CD8+ T cells are necessary for tumor suppression by Cxcl14, we performed antibody-based depletion of NK or CD8+ T cell populations using anti-NK1.1 antibody (clone PK136) and anti-CD8a antibody (clone GK 2.43), respectively. The data revealed that both NK and CD8+ T cells are necessary for Cxcl14 to optimally function as a tumor suppressor. Interestingly, NK cell depletion showed two distinct groups of responders and non-responders to Cxcl14 expression, while all mice with CD8+ T cell depletion developed tumor. These results suggest that NK cells may play an important role in initiation of antitumor immune responses. In contrast, adoptive transfer of lymphocytes from Cxcl14 expressing mice does not suppress tumor growth, indicating that NK and CD8+ T cells are required but not sufficient for Cxcl14-mediated antitumor immunity. As we previously showed that Cxcl14 induces chemotaxis of NK and CD8+ T cells, the chemotactic function of Cxcl14 in the tumor microenvironment might be critical for induction of antitumor immune responses. Further, our analysis of The Cancer Genome Atlas (TCGA) data showed that CXCL14 methylation status inversely correlates to patient survival. Therefore, CXCL14 may be a key communicator for antitumor immunity in the HPV-infected tumor microenvironment and could be used as a prognostic and therapeutic tool for HPV-positive HNC and CxCa patients.
Citation Format: Joseph A. Westrich, Louis Cicchini, Daniel W. Vermeer, Jennifer N. Berger, Eric T. Clambey, John H. Lee, Dohun Pyeon. CXCL14 expression inhibits tumor growth by reversing human papillomavirus-mediated immune suppression. [abstract]. In: Proceedings of the AACR Special Conference on Tumor Immunology and Immunotherapy; 2016 Oct 20-23; Boston, MA. Philadelphia (PA): AACR; Cancer Immunol Res 2017;5(3 Suppl):Abstract nr A07.
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Affiliation(s)
| | | | | | | | | | | | - Dohun Pyeon
- 1University of Colorado School of Medicine, Aurora, CO,
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Eberlein J, Davenport B, Nguyen T, Victorino F, Haist K, Jhun K, Karimpour-Fard A, Hunter L, Kedl R, Clambey ET, Homann D. Aging promotes acquisition of naive-like CD8+ memory T cell traits and enhanced functionalities. J Clin Invest 2016; 126:3942-3960. [PMID: 27617858 DOI: 10.1172/jci88546] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 08/02/2016] [Indexed: 12/18/2022] Open
Abstract
Protective T cell memory is an acquired trait that is contingent upon the preservation of its constituents and therefore vulnerable to the potentially deleterious effects of organismal aging. Here, however, we have found that long-term T cell memory in a natural murine host-pathogen system can substantially improve over time. Comprehensive molecular, phenotypic, and functional profiling of aging antiviral CD8+ memory T cells (CD8+ TM) revealed a pervasive remodeling process that promotes the gradual acquisition of distinct molecular signatures, of increasingly homogeneous phenotypes, and of diversified functionalities that combine to confer a CD8+ TM-autonomous capacity for enhanced recall responses and immune protection. Notably, the process of CD8+ TM aging is characterized by a progressive harmonization of memory and naive T cell traits, is broadly amenable to experimental acceleration or retardation, and serves as a constitutional component for the "rebound model" of memory T cell maturation. By casting CD8+ TM populations within the temporal framework of their slowly evolving properties, this model establishes a simple ontogenetic perspective on the principal organization of CD8+ T cell memory that may directly inform the development of improved diagnostic, prophylactic, and therapeutic modalities.
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Abbate LM, Perman SM, Clambey ET, Van Pelt RE, Ginde AA. Age Modifies the Association Between Obesity and Mortality in Individuals Hospitalized with Severe Sepsis. J Am Geriatr Soc 2016; 64:882-3. [PMID: 27100585 DOI: 10.1111/jgs.14047] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Lauren M Abbate
- Department of Emergency Medicine, School of Medicine, University of Colorado, Aurora, Colorado
| | - Sarah M Perman
- Department of Emergency Medicine, School of Medicine, University of Colorado, Aurora, Colorado
| | - Eric T Clambey
- Department of Emergency Medicine, School of Medicine, University of Colorado, Aurora, Colorado
| | - Rachael E Van Pelt
- Department of Anesthesiology, School of Medicine, University of Colorado, Aurora, Colorado
| | - Adit A Ginde
- Division of Geriatric Medicine, Department of Medicine, School of Medicine, University of Colorado, Aurora, Colorado
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Clambey ET, van Dyk LF. Multifaceted Roles of the Viral Cyclin in Gammaherpesvirus Pathogenesis. Curr Clin Micro Rpt 2016. [DOI: 10.1007/s40588-016-0042-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Henry CJ, Casás-Selves M, Kim J, Zaberezhnyy V, Aghili L, Daniel AE, Jimenez L, Azam T, McNamee EN, Clambey ET, Klawitter J, Serkova NJ, Tan AC, Dinarello CA, DeGregori J. Aging-associated inflammation promotes selection for adaptive oncogenic events in B cell progenitors. J Clin Invest 2015; 125:4666-80. [PMID: 26551682 DOI: 10.1172/jci83024] [Citation(s) in RCA: 104] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 10/01/2015] [Indexed: 12/21/2022] Open
Abstract
The incidence of cancer is higher in the elderly; however, many of the underlying mechanisms for this association remain unexplored. Here, we have shown that B cell progenitors in old mice exhibit marked signaling, gene expression, and metabolic defects. Moreover, B cell progenitors that developed from hematopoietic stem cells (HSCs) transferred from young mice into aged animals exhibited similar fitness defects. We further demonstrated that ectopic expression of the oncogenes BCR-ABL, NRAS(V12), or Myc restored B cell progenitor fitness, leading to selection for oncogenically initiated cells and leukemogenesis specifically in the context of an aged hematopoietic system. Aging was associated with increased inflammation in the BM microenvironment, and induction of inflammation in young mice phenocopied aging-associated B lymphopoiesis. Conversely, a reduction of inflammation in aged mice via transgenic expression of α-1-antitrypsin or IL-37 preserved the function of B cell progenitors and prevented NRAS(V12)-mediated oncogenesis. We conclude that chronic inflammatory microenvironments in old age lead to reductions in the fitness of B cell progenitor populations. This reduced progenitor pool fitness engenders selection for cells harboring oncogenic mutations, in part due to their ability to correct aging-associated functional defects. Thus, modulation of inflammation--a common feature of aging--has the potential to limit aging-associated oncogenesis.
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Victorino F, Sojka DK, Brodsky KS, McNamee EN, Masterson JC, Homann D, Yokoyama WM, Eltzschig HK, Clambey ET. Tissue-Resident NK Cells Mediate Ischemic Kidney Injury and Are Not Depleted by Anti-Asialo-GM1 Antibody. J Immunol 2015; 195:4973-85. [PMID: 26453755 DOI: 10.4049/jimmunol.1500651] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Accepted: 09/15/2015] [Indexed: 01/01/2023]
Abstract
NK cells are innate lymphoid cells important for immune surveillance, identifying and responding to stress, infection, and/or transformation. Whereas conventional NK (cNK) cells circulate systemically, many NK cells reside in tissues where they appear to be poised to locally regulate tissue function. In the present study, we tested the contribution of tissue-resident NK (trNK) cells to tissue homeostasis by studying ischemic injury in the mouse kidney. Parabiosis experiments demonstrate that the kidney contains a significant fraction of trNK cells under homeostatic conditions. Kidney trNK cells developed independent of NFIL3 and T-bet, and they expressed a distinct cell surface phenotype as compared with cNK cells. Among these, trNK cells had reduced asialo-GM1 (AsGM1) expression relative to cNK cells, a phenotype observed in trNK cells across multiple organs and mouse strains. Strikingly, anti-AsGM1 Ab treatment, commonly used as an NK cell-depleting regimen, resulted in a robust and selective depletion of cNKs, leaving trNKs largely intact. Using this differential depletion, we tested the relative contribution of cNK and trNK cells in ischemic kidney injury. Whereas anti-NK1.1 Ab effectively depleted both trNK and cNK cells and protected against ischemic/reperfusion injury, anti-AsGM1 Ab preferentially depleted cNK cells and failed to protect against injury. These data demonstrate unanticipated specificity of anti-AsGM1 Ab depletion on NK cell subsets and reveal a new approach to study the contributions of cNK and trNK cells in vivo. In total, these data demonstrate that trNK cells play a key role in modulating local responses to ischemic tissue injury in the kidney and potentially other organs.
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Affiliation(s)
- Francisco Victorino
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, CO 80045; Immunology Graduate Program, University of Colorado School of Medicine, Aurora, CO 80045
| | - Dorothy K Sojka
- Rheumatology Division, Washington University School of Medicine, St. Louis, MO 63110
| | - Kelley S Brodsky
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, CO 80045
| | - Eoin N McNamee
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, CO 80045
| | - Joanne C Masterson
- Gastrointestinal Eosinophilic Diseases Program, Section of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO 80045; Digestive Health Institute, Children's Hospital Colorado, Aurora, CO 80045; and
| | - Dirk Homann
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, CO 80045
| | - Wayne M Yokoyama
- Rheumatology Division, Washington University School of Medicine, St. Louis, MO 63110; Howard Hughes Medical Institute, Washington University School of Medicine, St. Louis, MO 63110
| | - Holger K Eltzschig
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, CO 80045
| | - Eric T Clambey
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, CO 80045;
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Clambey ET, Davenport B, Kappler JW, Marrack P, Homann D. Molecules in medicine mini review: the αβ T cell receptor. J Mol Med (Berl) 2014; 92:735-41. [PMID: 24848996 DOI: 10.1007/s00109-014-1145-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Revised: 01/17/2014] [Accepted: 01/21/2014] [Indexed: 01/01/2023]
Abstract
As an integral part of the mammalian immune system, a distributed network of tissues, cells, and extracellular factors, T lymphocytes perform and control a multitude of activities that collectively contribute to the effective establishment, maintenance, and restoration of tissue and organismal integrity. Development and function of T cells is controlled by the T cell receptor (TCR), a heterodimeric cell surface protein uniquely expressed on T cells. During T cell development, the TCR undergoes extensive somatic diversification that generates a diverse T cell repertoire capable of recognizing an extraordinary range of protein and nonprotein antigens presented in the context of major histocompatibility complex molecules (MHC). In this review, we provide an introduction to the TCR, describing underlying principles that position this molecule as a central regulator of the adaptive immune system involved in responses ranging from tissue protection and preservation to pathology and autoimmunity.
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Affiliation(s)
- Eric T Clambey
- Department of Anesthesiology, Mucosal Inflammation Program, University of Colorado School of Medicine, Mail Stop B112, Research Complex 2, 12700 East 19th Avenue, Aurora, CO, 80045, USA,
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Abstract
Despite the fact that a surgical procedure may have been performed for the appropriate indication and in a technically perfect manner, patients are threatened by perioperative organ injury. For example, stroke, myocardial infarction, acute respiratory distress syndrome, acute kidney injury, or acute gut injury are among the most common causes for morbidity and mortality in surgical patients. In the current review, the authors discuss the pathogenesis of perioperative organ injury, and provide select examples for novel treatment concepts that have emerged over the past decade. Indeed, the authors are of the opinion that research to provide mechanistic insight into acute organ injury and identification of novel therapeutic approaches for the prevention or treatment of perioperative organ injury represent the most important opportunity to improve outcomes of anesthesia and surgery.
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Affiliation(s)
- Karsten Bartels
- * Fellow in Critical Care Medicine and Cardiothoracic Anesthesiology, † Assistant Professor of Anesthesiology, Department of Anesthesiology, Duke University Medical Center, Durham, North Carolina. ‡ Assistant Professor of Anesthesiology, § Associate Professor of Anesthesiology, ‖ Professor of Anesthesiology, Department of Anesthesiology, University of Colorado Denver, Aurora, Colorado
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McNamee EN, Korns Johnson D, Homann D, Clambey ET. Hypoxia and hypoxia-inducible factors as regulators of T cell development, differentiation, and function. Immunol Res 2013; 55:58-70. [PMID: 22961658 DOI: 10.1007/s12026-012-8349-8] [Citation(s) in RCA: 164] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Oxygen is a molecule that is central to cellular respiration and viability, yet there are multiple physiologic and pathological contexts in which cells experience conditions of insufficient oxygen availability, a state known as hypoxia. Given the metabolic challenges of a low oxygen environment, hypoxia elicits a range of adaptive responses at the cellular, tissue, and systemic level to promote continued survival and function. Within this context, T lymphocytes are a highly migratory cell type of the adaptive immune system that frequently encounters a wide range of oxygen tensions in both health and disease. It is now clear that oxygen availability regulates T cell differentiation and function, a response orchestrated in large part by the hypoxia-inducible factor transcription factors. Here, we discuss the physiologic scope of hypoxia and hypoxic signaling, the contribution of these pathways in regulating T cell biology, and current gaps in our understanding. Finally, we discuss how emerging therapies that modulate the hypoxic response may offer new modalities to alter T cell function and the outcome of acute and chronic pathologies.
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Affiliation(s)
- Eóin N McNamee
- Mucosal Inflammation Program, Department of Anesthesiology, School of Medicine, University of Colorado Denver, Aurora, CO 80045, USA
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Ehrentraut H, Clambey ET, McNamee EN, Brodsky KS, Ehrentraut SF, Poth JM, Riegel AK, Westrich JA, Colgan SP, Eltzschig HK. CD73+ regulatory T cells contribute to adenosine-mediated resolution of acute lung injury. FASEB J 2013; 27:2207-19. [PMID: 23413361 PMCID: PMC3659359 DOI: 10.1096/fj.12-225201] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Accepted: 02/04/2013] [Indexed: 12/22/2022]
Abstract
Acute lung injury (ALI) is characterized by alveolar injury and uncontrolled inflammation. Since most cases of ALI resolve spontaneously, understanding the endogenous mechanisms that promote ALI resolution is important to developing effective therapies. Previous studies have implicated extracellular adenosine signaling in tissue adaptation and wound healing. Therefore, we hypothesized a functional contribution for the endogenous production of adenosine during ALI resolution. As a model, we administered intratracheal LPS and observed peak lung injury at 3 d, with resolution by d 14. Treatment with pegylated adenosine-deaminase to enhance extracellular adenosine breakdown revealed impaired ALI resolution. Similarly, genetic deletion of cd73, the pacemaker for extracellular adenosine generation, was associated with increased mortality (0% wild-type and 40% in cd73(-/-) mice; P<0.05) and failure to resolve ALI adequately. Studies of inflammatory cell trafficking into the lungs during ALI resolution revealed that regulatory T cells (Tregs) express the highest levels of CD73. While Treg numbers in cd73(-/-) mice were similar to controls, cd73-deficient Tregs had attenuated immunosuppressive functions. Moreover, adoptive transfer of cd73-deficient Tregs into Rag(-/-) mice emulated the observed phenotype in cd73(-/-) mice, while transfer of wild-type Tregs was associated with normal ALI resolution. Together, these studies implicate CD73-dependent adenosine generation in Tregs in promoting ALI resolution.
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Affiliation(s)
- Heidi Ehrentraut
- Department of Anesthesiology and
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Bonn, Bonn, Germany
| | | | | | | | - Stefan F. Ehrentraut
- Department of Medicine, Mucosal Inflammation Program, University of Colorado School of Medicine, Aurora, Colorado, USA; and
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Bonn, Bonn, Germany
| | - Jens M. Poth
- Department of Anesthesiology and
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Bonn, Bonn, Germany
| | | | | | - Sean P. Colgan
- Department of Medicine, Mucosal Inflammation Program, University of Colorado School of Medicine, Aurora, Colorado, USA; and
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Clambey ET, Collins B, Young MH, Eberlein J, David A, Kappler JW, Marrack P. The Ikaros transcription factor regulates responsiveness to IL-12 and expression of IL-2 receptor alpha in mature, activated CD8 T cells. PLoS One 2013; 8:e57435. [PMID: 23483882 PMCID: PMC3585008 DOI: 10.1371/journal.pone.0057435] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2012] [Accepted: 01/21/2013] [Indexed: 11/23/2022] Open
Abstract
The Ikaros family of transcription factors is critical for normal T cell development while limiting malignant transformation. Mature CD8 T cells express multiple Ikaros family members, yet little is known about their function in this context. To test the functions of this gene family, we used retroviral transduction to express a naturally occurring, dominant negative (DN) isoform of Ikaros in activated CD8 T cells. Notably, expression of DN Ikaros profoundly enhanced the competitive advantage of activated CD8 T cells cultured in IL-12, such that by 6 days of culture, DN Ikaros-transduced cells were 100-fold more abundant than control cells. Expression of a DN isoform of Helios, a related Ikaros-family transcription factor, conferred a similar advantage to transduced cells in IL-12. While DN Ikaros-transduced cells had higher expression of the IL-2 receptor alpha chain, DN Ikaros-transduced cells achieved their competitive advantage through an IL-2 independent mechanism. Finally, the competitive advantage of DN Ikaros-transduced cells was manifested in vivo, following adoptive transfer of transduced cells. These data identify the Ikaros family of transcription factors as regulators of cytokine responsiveness in activated CD8 T cells, and suggest a role for this family in influencing effector and memory CD8 T cell differentiation.
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Affiliation(s)
- Eric T Clambey
- Integrated Department of Immunology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.
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Collins B, Clambey ET, Scott-Browne J, White J, Marrack P, Hagman J, Kappler JW. Ikaros promotes rearrangement of TCR α genes in an Ikaros null thymoma cell line. Eur J Immunol 2012; 43:521-32. [PMID: 23172374 DOI: 10.1002/eji.201242757] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 10/09/2012] [Accepted: 11/16/2012] [Indexed: 12/27/2022]
Abstract
Ikaros is important in the development and maintenance of the lymphoid system, functioning in part by associating with chromatin-remodeling complexes. We have studied the functions of Ikaros in the transition from pre-T cell to the CD4(+) CD8(+) thymocyte using an Ikaros null CD4(-) CD8(-) mouse thymoma cell line (JE131). We demonstrate that this cell line carries a single functional TCR β gene rearrangement and expresses a surface pre-TCR. JE131 cells also carry nonfunctional rearrangements on both alleles of their TCR α loci. Retroviral reintroduction of Ikaros dramatically increased the rate of transcription in the α locus and TCR Vα/Jα recombination resulting in the appearance of many new αβTCR(+) cells. The process is RAG dependent, requires switch/sucrose nonfermentable chromatin-remodeling complexes and is coincident with the binding of Ikaros to the TCR α enhancer. Furthermore, knockdown of Mi2/nucleosome remodeling and deacetylase complexes increased the frequency of TCR α rearrangement. Our data suggest that Ikaros controls Vα/Jα recombination in T cells by controlling access of the transcription and recombination machinery to the TCR α loci. The JE131 cell line should prove to be a very useful tool for studying the molecular details of this and other processes involved in the pre-T cell to αβTCR(+) CD4(+) CD8(+) thymocyte transition.
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Affiliation(s)
- Bernard Collins
- Howard Hughes Medical Institute, National Jewish Health, Denver, CO 80206, USA
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Grenz A, Kim JH, Bauerle JD, Tak E, Eltzschig HK, Clambey ET. Adora2b adenosine receptor signaling protects during acute kidney injury via inhibition of neutrophil-dependent TNF-α release. J Immunol 2012; 189:4566-73. [PMID: 23028059 DOI: 10.4049/jimmunol.1201651] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Renal ischemia is among the leading causes of acute kidney injury (AKI). Previous studies have shown that extracellular adenosine is a prominent tissue-protective cue elicited during ischemia, including signaling events through the adenosine receptor 2b (Adora2b). To investigate the functional role of Adora2b signaling in cytokine-mediated inflammatory pathways, we screened wild-type and Adora2b-deficient mice undergoing renal ischemia for expression of a range of inflammatory cytokines. These studies demonstrated a selective and robust increase of TNF-α levels in Adora2b-deficient mice following renal ischemia and reperfusion. Based on these findings, we next sought to understand the contribution of TNF-α on ischemic AKI through a combination of loss- and gain-of-function studies. Loss of TNF-α, through either Ab blockade or study of Tnf-α-deficient animals, resulted in significantly attenuated tissue injury and improved kidney function following renal ischemia. Conversely, transgenic mice with overexpression of TNF-α had significantly pronounced susceptibility to AKI. Furthermore, neutrophil depletion or reconstitution of Adora2b(-/-) mice with Tnf-α-deficient neutrophils rescued their phenotype. In total, these data demonstrate a critical role of adenosine signaling in constraining neutrophil-dependent production of TNF-α and implicate therapies targeting TNF-α in the treatment of ischemic AKI.
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Affiliation(s)
- Almut Grenz
- Mucosal Inflammation Program, Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045, USA
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