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Goldsmith JD, Troxell ML, Roy-Chowdhuri S, Colasacco CF, Edgerton ME, Fitzgibbons PL, Fulton R, Haas T, Kandalaft PL, Kalicanin T, Lacchetti C, Loykasek P, Thomas NE, Swanson PE, Bellizzi AM. Principles of Analytic Validation of Immunohistochemical Assays: Guideline Update. Arch Pathol Lab Med 2024; 148:e111-e153. [PMID: 38391878 DOI: 10.5858/arpa.2023-0483-cp] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/19/2023] [Indexed: 02/24/2024]
Abstract
CONTEXT.— In 2014, the College of American Pathologists developed an evidence-based guideline to address analytic validation of immunohistochemical assays. Fourteen recommendations were offered. Per the National Academy of Medicine standards for developing trustworthy guidelines, guidelines should be updated when new evidence suggests modifications. OBJECTIVE.— To assess evidence published since the release of the original guideline and develop updated evidence-based recommendations. DESIGN.— The College of American Pathologists convened an expert panel to perform a systematic review of the literature and update the original guideline recommendations using the Grading of Recommendations Assessment, Development and Evaluation approach. RESULTS.— Two strong recommendations, 1 conditional recommendation, and 12 good practice statements are offered in this updated guideline. They address analytic validation or verification of predictive and nonpredictive assays, and recommended revalidation procedures following changes in assay conditions. CONCLUSIONS.— While many of the original guideline statements remain similar, new recommendations address analytic validation of assays with distinct scoring systems, such as programmed death receptor-1 and analytic verification of US Food and Drug Administration approved/cleared assays; more specific guidance is offered for validating immunohistochemistry performed on cytology specimens.
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Affiliation(s)
- Jeffrey D Goldsmith
- From the Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, Massachusetts (Goldsmith)
| | - Megan L Troxell
- the Department of Pathology, Stanford University School of Medicine, Stanford, California (Troxell)
| | - Sinchita Roy-Chowdhuri
- the Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas (Roy-Chowdhuri)
| | - Carol F Colasacco
- the Pathology and Laboratory Quality Center for Evidence-based Guidelines, College of American Pathologists, Northfield, Illinois (Colasacco, Kalicanin, Thomas)
| | - Mary Elizabeth Edgerton
- the Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, Nebraska (Edgerton)
| | - Patrick L Fitzgibbons
- the Department of Pathology, Providence St Jude Medical Center, Fullerton, California (Fitzgibbons)
| | - Regan Fulton
- Array Science, LLC, Sausalito, California (Fulton)
| | - Thomas Haas
- Seagull Laboratory Consulting, Janesville, Wisconsin (Haas)
| | | | - Tanja Kalicanin
- the Pathology and Laboratory Quality Center for Evidence-based Guidelines, College of American Pathologists, Northfield, Illinois (Colasacco, Kalicanin, Thomas)
| | - Christina Lacchetti
- Policy and Advocacy, American Society of Clinical Oncology, Alexandria, Virginia (Lacchetti)
| | - Patti Loykasek
- Molecular, Immunohistochemistry and Flow Cytometry, Pathology Laboratory Associates, Tulsa, Oklahoma (Loykasek)
| | - Nicole E Thomas
- the Pathology and Laboratory Quality Center for Evidence-based Guidelines, College of American Pathologists, Northfield, Illinois (Colasacco, Kalicanin, Thomas)
| | - Paul E Swanson
- the Department of Laboratory Medicine and Pathology, University of Washington Medical Center, Seattle, Washington (Swanson)
| | - Andrew M Bellizzi
- the Department of Pathology, University of Iowa Hospitals and Clinics, Iowa City, Iowa (Bellizzi)
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2
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Avilés-Salas A, Cabrera-Miranda L, Hernández-Pedro N, Vargas-Lías DS, Samtani S, Muñoz-Montaño W, Motola-Kuba D, Corrales-Rodríguez L, Martín C, Cardona AF, Palomares-Palomares CB, Arrieta O. PD-L1 expression complements CALGB prognostic scoring system in malignant pleural mesothelioma. Front Oncol 2023; 13:1269029. [PMID: 38111532 PMCID: PMC10725960 DOI: 10.3389/fonc.2023.1269029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 10/30/2023] [Indexed: 12/20/2023] Open
Abstract
Background Programmed death ligand-1 (PD-L1) expression is a predictive biomarker in patients with lung cancer, but its role in malignant pleural mesothelioma (MPM) remains unclear. Evidence suggests that higher PD-L1 expression is correlated with worse survival. CALGB is the main scoring system used to predict the benefit of chemotherapy treatment. This study aimed to determine the prognostic value of PD-L1 expression and its addition to CALGB scoring system in patients with MPM. Methods In this retrospective analysis, we evaluated samples with confirmed locally advanced or metastatic MPM. PD-L1 Tumor Proportional Score (TPS) was determined by immunohistochemistry at diagnosis. Results 73 patients were included in this study. A cutoff value of 15 was set for a high or low PD-L1 TPS. In total, 71.2% (n=52) and 28.8% (n=21) of individuals harbored low or high PD-L1 expression, respectively. PD-L1High was associated with worse median progression-free Survival (mPFS) [4.9 vs. 10.8 months; HR 2.724, 95% CI (1.44-5.14); p = 0.002] and Overall Survival (OS) [6.0 vs. 20.9 months; HR 6.87, 95% CI (3.4-8.7); p<0.001] compared to patients with PD-L1Low. Multivariate analysis confirmed that PD-L1 expression was an independent factor for PFS and OS in patients with MPM and CALGB score of 5-6. Conclusion PD-L1 addition to CALGB scale improves its prognostic estimation of MPM survival and should be considered in future research.
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Affiliation(s)
| | - Luis Cabrera-Miranda
- Thoracic Oncology Unit, Instituto Nacional de Cancerología (INCan), Mexico City, Mexico
| | - Norma Hernández-Pedro
- Personalized Medicine Laboratory, Instituto Nacional de Cancerología (INCan), Mexico City, Mexico
| | | | - Suraj Samtani
- Medical Oncology Department, Clínica Las Condes Santiago, Santiago, Chile
| | - Wendy Muñoz-Montaño
- Thoracic Oncology Unit, Instituto Nacional de Cancerología (INCan), Mexico City, Mexico
| | - Daniel Motola-Kuba
- Departments of Biomedical Research and Gastroenterology and Liver Unit and Hemodialysis Unit, Medica Sur Clinic and Foundation, Mexico City, Mexico
| | | | - Claudio Martín
- Department of Medicine, Western University, London, ON, Canada
| | - Andrés F. Cardona
- Thoracic Oncology Unit and Direction of Research, Science and Education, Luis Carlos Sarmiento Angulo Cancer Treatment and Research Center (CTIC), Bogotá, Colombia
- Clinical and Translational Oncology Group, Clínica del Country, Bogotá, Colombia
- Molecular Oncology and Biology Systems Research Group (Fox-G), Universidad El Bosque, Bogotá, Colombia
| | | | - Oscar Arrieta
- Thoracic Oncology Unit, Instituto Nacional de Cancerología (INCan), Mexico City, Mexico
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3
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Simon N. Considerations for identifying the "right" subgroup in adaptive enrichment trials. Clin Trials 2023:17407745231174909. [PMID: 37269222 DOI: 10.1177/17407745231174909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Adaptive Enrichment Trials aim to make efficient use of data in a pivotal trial of a new targeted therapy to both (a) more precisely identify who benefits from that therapy and (b) improve the likelihood of successfully concluding that the drug is effective, while controlling the probability of false positives. There are a number of frameworks for conducting such a trial and decisions that must be made regarding how to identify that target subgroup. Among those decisions, one must choose how aggressively to restrict enrollment criteria based on the accumulating evidence in the trial. In this article, we empirically evaluate the impact of aggressive versus conservative enrollment restrictions on the power of the trial to detect an effect of treatment. We identify that, in some cases, a more aggressive strategy can substantially improve power. This additionally raises an important question regarding label indication: To what degree do we need a formal test of the hypothesis of no treatment effect in the exact population implied by the label indication? We discuss this question and evaluate how our answer for adaptive enrichment trials may relate to the answer implied by current practice for broad eligibility trials.
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Affiliation(s)
- Noah Simon
- Department of Biostatistics, University of Washington, Seattle, WA, USA
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4
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Okita R, Mimura-Kimura Y, Kawamoto N, Yamamoto N, Umeda M, Okada M, Inokawa H, Mimura Y, Murakami T, Nakata M, Okabe K. Effects of tumor-infiltrating CD8+ T cells, PD1/PD-L1 axis, and expression patterns of HLA class I on the prognosis of patients with malignant pleural mesothelioma who underwent extra-pleural pneumonectomy. Cancer Immunol Immunother 2023; 72:865-879. [PMID: 36115921 DOI: 10.1007/s00262-022-03292-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 09/05/2022] [Indexed: 01/21/2023]
Abstract
Programmed cell death protein-1 (PD1), PD1 ligand 1 (PD-L1), and human leukocyte antigen (HLA) class I molecule play pivotal roles in T cell-induced anti-tumor immunity; however, the clinical impact of these parameters in resected malignant pleural mesothelioma (MPM) cases is unknown. We immunohistochemically evaluated the tumor infiltrated lymphocytes (TILs), PD1/PD-L1 axis, and expression of HLA class I in resected specimens from 58 patients with MPM who underwent extra-pleural pneumonectomy (EPP). Higher infiltration of CD3-TIL, CD8-TIL, and PD1-TIL, loss of HLA class I, and overexpression of PD-L1 by tumor cells (PD-L1 TC) or immune cells (PD-L1 IC) were observed in 34 (58.6%), 27 (46.6%), 41 (70.7%), 45 (77.6%), 29 (50.0%), and 33 (56.4%) of 58 cases, respectively. Interestingly, the CD3-TIL score positively correlated with PD-L1 TC and PD1-TIL scores. HLA class I expression level was inversely correlated with the expression levels of PD-L1 TC and PD-L1 IC. Multivariate analysis showed that age, histology, and node metastasis were independent prognostic factors for 5-year overall survival (OS) and loss of HLA class I coincided with a positive prognosis (p = 0.011). The concomitant lack of infiltrating CD8+ T cells with no loss of HLA class I predicted worse 5-year OS (p = 0.007). Moreover, cluster classifications among multiple immunoparameters showed that categories among CD3/PD-L1 TC/HLA class I (p = 0.043), CD8/PD1/HLA class I (p = 0.032), CD8/PD-L1 TC/HLA class I (p = 0.011), and PD1/PD-L1 TC/HLA class I (p = 0.032) predicted 5-year OS in EPP cases for MPM. These immunoparameters could guide surgical indications for patients with MPM.
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Affiliation(s)
- Riki Okita
- Department of Thoracic Surgery, National Hospital Organization Yamaguchi Ube Medical Center, Higashikiwa 685, Ube, Yamaguchi, 755-0241, Japan.
| | - Yuka Mimura-Kimura
- Clinical Research, National Hospital Organization Yamaguchi Ube Medical Center, Higashikiwa 685, Ube, Yamaguchi, 755-0241, Japan
| | - Nobutaka Kawamoto
- Department of Thoracic Surgery, National Hospital Organization Yamaguchi Ube Medical Center, Higashikiwa 685, Ube, Yamaguchi, 755-0241, Japan
| | - Naoki Yamamoto
- Gastroenterology and Hepatology, National Hospital Organization Yamaguchi Ube Medical Center, Higashikiwa 685, Ube, Yamaguchi, 755-0241, Japan
- Department of Gastroenterology and Hepatology, Yamaguchi Health Administration Center, Yamaguchi University Graduate School of Medicine, Minami Kogushi 1-1-1, Ube, Yamaguchi, 755-8505, Japan
| | - Masashi Umeda
- Department of Thoracic Surgery, National Hospital Organization Yamaguchi Ube Medical Center, Higashikiwa 685, Ube, Yamaguchi, 755-0241, Japan
| | - Masanori Okada
- Department of Thoracic Surgery, National Hospital Organization Yamaguchi Ube Medical Center, Higashikiwa 685, Ube, Yamaguchi, 755-0241, Japan
| | - Hidetoshi Inokawa
- Department of Thoracic Surgery, National Hospital Organization Yamaguchi Ube Medical Center, Higashikiwa 685, Ube, Yamaguchi, 755-0241, Japan
| | - Yusuke Mimura
- Clinical Research, National Hospital Organization Yamaguchi Ube Medical Center, Higashikiwa 685, Ube, Yamaguchi, 755-0241, Japan
| | - Tomoyuki Murakami
- Clinical Research, National Hospital Organization Yamaguchi Ube Medical Center, Higashikiwa 685, Ube, Yamaguchi, 755-0241, Japan
- Department of Pathology, National Hospital Organization Kanmon Medical Center, Chofusotoura-cho 1-1, Shimonoseki, Yamaguchi, 752-8510, Japan
| | - Masao Nakata
- Department of General Thoracic Surgery, Kawasaki Medical School, Matsushima 577, Kurashiki, 7010192, Japan
| | - Kazunori Okabe
- Department of Thoracic Surgery, National Hospital Organization Yamaguchi Ube Medical Center, Higashikiwa 685, Ube, Yamaguchi, 755-0241, Japan
- Department of Thoracic Surgery, Bell Land General Hospital, Higashiyama 500-3, Nakaku, Sakai, Osaka, 599-8247, Japan
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Okita R, Kawamoto N, Okada M, Inokawa H, Yamamoto N, Murakami T, Ikeda E. Preoperative neutrophil-to-lymphocyte ratio correlates with PD-L1 expression in immune cells of patients with malignant pleural mesothelioma and predicts prognosis. Sci Rep 2023; 13:5263. [PMID: 37002247 PMCID: PMC10066199 DOI: 10.1038/s41598-023-31448-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 03/11/2023] [Indexed: 04/03/2023] Open
Abstract
We assessed the prognostic value of five complex inflammatory and nutritional parameters, namely neutrophil-to-lymphocyte ratio (NLR), prognostic nutritional index (PNI), C-reactive protein-to-NLR ratio (C/NLR), platelet-to-lymphocyte ratio (PLR), and lymphocyte-to-monocyte ratio (LMR) using data from patients with malignant pleural mesothelioma (MPM) undergoing extrapleural pneumonectomy (EPP). Moreover, the correlation between these five parameters and programmed cell death protein 1 ligand-1 (PD-L1) expression in the tumor microenvironment was evaluated. This study included consecutive MPM patients who underwent EPP. The histological subtype of the eligible patients (n = 61) correlated with all five parameters. Moreover, the PD-L1 expression scores for immune cells correlated with NLR and PLR, and the PD-L1 expression scores for both tumor cells and immune cells were inversely correlated with both PNI and LMR. Univariate analysis elucidated that NLR, PNI, and C/NLR were predictors of 5-year overall survival (OS), and multivariate analysis revealed that NLR was an independent predictor of 5-year OS, suggesting that NLR is a preoperative, prognostic factor for patients with MPM who are scheduled for EPP. To the best of our knowledge, this is the first study to evaluate the prognostic potentials of NLR, PNI, C/NLR, PLR, and LMR simultaneously in patients with MPM who underwent EPP.
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Affiliation(s)
- Riki Okita
- Department of Thoracic Surgery, National Hospital Organization Yamaguchi Ube Medical Center, 685 Higashikiwa, Ube Yamaguchi, 755-0241, Japan.
| | - Nobutaka Kawamoto
- Department of Thoracic Surgery, National Hospital Organization Yamaguchi Ube Medical Center, 685 Higashikiwa, Ube Yamaguchi, 755-0241, Japan
| | - Masanori Okada
- Department of Thoracic Surgery, National Hospital Organization Yamaguchi Ube Medical Center, 685 Higashikiwa, Ube Yamaguchi, 755-0241, Japan
| | - Hidetoshi Inokawa
- Department of Thoracic Surgery, National Hospital Organization Yamaguchi Ube Medical Center, 685 Higashikiwa, Ube Yamaguchi, 755-0241, Japan
| | - Naoki Yamamoto
- Health Administration Center, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Tomoyuki Murakami
- Department Clinical Research, National Hospital Organization Yamaguchi Ube Medical Center, 685 Higashikiwa, Ube Yamaguchi, 755-0241, Japan
- Department of Pathology, KYURIN/ KYURIN PACELL Corporation, 26-67 Morishita-Cho, Yahatanishi-Ku, Kitakyushu, Fukuoka, 806-0046, Japan
| | - Eiji Ikeda
- Department Clinical Research, National Hospital Organization Yamaguchi Ube Medical Center, 685 Higashikiwa, Ube Yamaguchi, 755-0241, Japan
- Department of Pathology, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan
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6
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Fennell DA, Dulloo S, Harber J. Immunotherapy approaches for malignant pleural mesothelioma. Nat Rev Clin Oncol 2022; 19:573-584. [PMID: 35778611 DOI: 10.1038/s41571-022-00649-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/18/2022] [Indexed: 12/27/2022]
Abstract
Over the past decade, immune-checkpoint inhibitors (ICIs) have revolutionized the treatment of cancer. In mesothelioma, a rare cancer with a dismal prognosis generally caused by exposure to asbestos, treatment with single or dual ICIs results in robust improvements in overall survival over previous standard-of-care therapies, both in the first-line and relapsed disease settings. Predictive biological features that underpin response to ICIs remain poorly understood; however, insights into the immune microenvironment and genomic landscape of mesothelioma as well as into their association with response or acquired resistance to ICIs are emerging. Several studies of rational combinations involving ICIs with either another ICI or a different agent are ongoing, with emerging evidence of synergistic antitumour activity. Non-ICI-based immunotherapies, such as peptide-based vaccines and mesothelin-targeted chimeric antigen receptor T cells, have demonstrated promising efficacy. Moreover, results from pivotal trials of dendritic cell vaccines and viral cytokine delivery, among others, are eagerly awaited. In this Review, we comprehensively summarize the key steps in the development of immunotherapies for mesothelioma, focusing on strategies that have led to randomized clinical evaluation and emerging predictors of response. We then forecast the future treatment opportunities that could arise from ongoing research.
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Affiliation(s)
- Dean A Fennell
- Mesothelioma Research Programme, Centre for Cancer Research, University of Leicester & University of Leicester Hospitals NHS Trust, Leicester, UK.
| | - Sean Dulloo
- Mesothelioma Research Programme, Centre for Cancer Research, University of Leicester & University of Leicester Hospitals NHS Trust, Leicester, UK
| | - James Harber
- Mesothelioma Research Programme, Centre for Cancer Research, University of Leicester & University of Leicester Hospitals NHS Trust, Leicester, UK
- Harry Perkins Institute of Medical Research, The University of Western Australia, Perth, Western Australia, Australia
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7
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Mansfield AS, Brown RJ, Sammon C, Daumont MJ, McKenna M, Sanzari JK, Forde PM. The predictive and prognostic nature of PD-L11 in malignant pleural mesothelioma: a systematic literature review. JTO Clin Res Rep 2022; 3:100315. [PMID: 35516726 PMCID: PMC9062484 DOI: 10.1016/j.jtocrr.2022.100315] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/15/2022] [Accepted: 03/17/2022] [Indexed: 11/29/2022] Open
Affiliation(s)
| | - Rebecca J. Brown
- PHMR Ltd., Berkeley Works, London, United Kingdom
- Corresponding author. Address for correspondence: Rebecca J. Brown, PhD, PHMR Ltd., Berkeley Works, Berkley Grove, London NW1 8XY, United Kingdom.
| | | | | | - Mike McKenna
- Health Outcomes Solutions Ltd., London, United Kingdom
| | | | - Patrick M. Forde
- Bloomberg-Kimmel Institute for Cancer Immunotherapy, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland
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Hiltbrunner S, Mannarino L, Kirschner MB, Opitz I, Rigutto A, Laure A, Lia M, Nozza P, Maconi A, Marchini S, D’Incalci M, Curioni-Fontecedro A, Grosso F. Tumor Immune Microenvironment and Genetic Alterations in Mesothelioma. Front Oncol 2021; 11:660039. [PMID: 34249695 PMCID: PMC8261295 DOI: 10.3389/fonc.2021.660039] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 05/25/2021] [Indexed: 12/15/2022] Open
Abstract
Malignant pleural mesothelioma (MPM) is a rare and fatal disease of the pleural lining. Up to 80% of the MPM cases are linked to asbestos exposure. Even though its use has been banned in the industrialized countries, the cases continue to increase. MPM is a lethal cancer, with very little survival improvements in the last years, mirroring very limited therapeutic advances. Platinum-based chemotherapy in combination with pemetrexed and surgery are the standard of care, but prognosis is still unacceptably poor with median overall survival of approximately 12 months. The genomic landscape of MPM has been widely characterized showing a low mutational burden and the impairment of tumor suppressor genes. Among them, BAP1 and BLM are present as a germline inactivation in a small subset of patients and increases predisposition to tumorigenesis. Other studies have demonstrated a high frequency of mutations in DNA repair genes. Many therapy approaches targeting these alterations have emerged and are under evaluation in the clinic. High-throughput technologies have allowed the detection of more complex molecular events, like chromotripsis and revealed different transcriptional programs for each histological subtype. Transcriptional analysis has also paved the way to the study of tumor-infiltrating cells, thus shedding lights on the crosstalk between tumor cells and the microenvironment. The tumor microenvironment of MPM is indeed crucial for the pathogenesis and outcome of this disease; it is characterized by an inflammatory response to asbestos exposure, involving a variety of chemokines and suppressive immune cells such as M2-like macrophages and regulatory T cells. Another important feature of MPM is the dysregulation of microRNA expression, being frequently linked to cancer development and drug resistance. This review will give a detailed overview of all the above mentioned features of MPM in order to improve the understanding of this disease and the development of new therapeutic strategies.
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Affiliation(s)
- Stefanie Hiltbrunner
- Department of Medical Oncology and Hematology, University Hospital Zurich, Zurich, Switzerland
- Comprehensive Cancer Center Zurich, University of Zurich, Zurich, Switzerland
| | - Laura Mannarino
- Department of Oncology, Istituto di Ricerche Farmacologiche Mario Negri Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Milano, Italy
| | | | - Isabelle Opitz
- Department of Thoracic Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Angelica Rigutto
- Department of Medical Oncology and Hematology, University Hospital Zurich, Zurich, Switzerland
- Comprehensive Cancer Center Zurich, University of Zurich, Zurich, Switzerland
| | - Alexander Laure
- Department of Medical Oncology and Hematology, University Hospital Zurich, Zurich, Switzerland
- Comprehensive Cancer Center Zurich, University of Zurich, Zurich, Switzerland
| | - Michela Lia
- Mesothelioma Unit, Azienda Ospedaliera SS. Antonio e Biagio e Cesare Arrigo, Alessandria, Italy
| | - Paolo Nozza
- Department of Pathology, Azienda Ospedaliera SS. Antonio e Biagio e Cesare Arrigo, Alessandria, Italy
| | - Antonio Maconi
- Infrastruttura Ricerca Formazione Innovazione (IRFI), Dipartimento Attività Integrate Ricerca e Innovazione (DAIRI), Azienda Ospedaliera SS. Antonio e Biagio e Cesare Arrigo, Alessandria, Italy
| | - Sergio Marchini
- Department of Oncology, Istituto di Ricerche Farmacologiche Mario Negri Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Milano, Italy
| | - Maurizio D’Incalci
- Department of Oncology, Istituto di Ricerche Farmacologiche Mario Negri Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Milano, Italy
| | - Alessandra Curioni-Fontecedro
- Department of Medical Oncology and Hematology, University Hospital Zurich, Zurich, Switzerland
- Comprehensive Cancer Center Zurich, University of Zurich, Zurich, Switzerland
| | - Federica Grosso
- Mesothelioma Unit, Azienda Ospedaliera SS. Antonio e Biagio e Cesare Arrigo, Alessandria, Italy
- Translational Medicine, Dipartimento Attività Integrate Ricerca e Innovazione (DAIRI), Azienda Ospedaliera SS. Antonio e Biagio e Cesare Arrigo, Alessandria, Italy
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9
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Parikh K, Hendriks LEL, Bironzo P, Remon J. Immune checkpoint inhibitors a new player in the therapeutic game of mesothelioma: New reality with new challenges. Cancer Treat Rev 2021; 99:102250. [PMID: 34174669 DOI: 10.1016/j.ctrv.2021.102250] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 06/06/2021] [Accepted: 06/12/2021] [Indexed: 10/21/2022]
Abstract
Malignant pleural mesothelioma (MPM) is a rare and orphan thoracic malignancy, with a poor prognosis as the majority of patients are diagnosed with unresectable MPM, with no significant improvements in the therapeutic strategy for over a decade. However, the recent approval of immune checkpoint inhibitors (ICI) in treatment-naïve patients with unresectable MPM marks a significant step forward and hope for the treatment of this disease. In this narrative review, we discuss the biological rationale to use ICI in the treatment of MPM. We summarize the current evidence for the efficacy of ICI in MPM and discuss several unresolved challenges regarding the use of ICI in this disease, such as the best upfront immune approach in MPM (ICI versus ICI plus chemotherapy), the optimal sequential treatment strategy according to the first-line treatment, and the potential role of predictive biomarkers.
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Affiliation(s)
- Kaushal Parikh
- Department of Medical Oncology, John Theurer Cancer Center at Hackensack University Medical Center, Hackensack, NJ, USA
| | - Lizza E L Hendriks
- Department of Respiratory Medicine, Maastricht University Medical Centre, GROW School for Oncology and Developmental Biology, Maastricht, the Netherlands
| | - Paolo Bironzo
- Department of Oncology, University of Torino, San Luigi Gonzaga Hospital, Orbassano, Italy
| | - Jordi Remon
- Department of Medical Oncology, Centro Integral Oncológico Clara Campal (HM-CIOCC), Hospital HM Delfos, HM Hospitales, Barcelona, Spain.
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10
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Prince EA, Sanzari JK, Pandya D, Huron D, Edwards R. Analytical Concordance of PD-L1 Assays Utilizing Antibodies From FDA-Approved Diagnostics in Advanced Cancers: A Systematic Literature Review. JCO Precis Oncol 2021; 5:953-973. [PMID: 34136742 PMCID: PMC8202559 DOI: 10.1200/po.20.00412] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 02/10/2021] [Accepted: 03/11/2021] [Indexed: 12/02/2022] Open
Abstract
PURPOSE Four programmed death ligand 1 (PD-L1) immunohistochemistry assays (28-8, 22C3, SP263, and SP142) have been approved for use by the US Food and Drug Administration (FDA). Analytical concordance between these assays has been evaluated in multiple studies. This systematic review included studies that investigated the analytical concordance of immunohistochemistry assays utilizing two or more PD-L1 antibodies from FDA-approved diagnostics for evaluation of PD-L1 expression on tumor or immune cells across a range of tumor types and algorithms. METHODS Literature searches were conducted in MEDLINE (via PubMed) and EMBASE to identify studies published between January 1, 2010, and March 31, 2019, that evaluated analytical concordance between two or more assays based on antibodies from FDA-approved assays. Proceedings of key oncology and pathology congresses that took place between January 2016 and March 2019 were searched for abstracts of studies evaluating PD-L1 assay concordance. RESULTS A total of 42 studies across a range of tumor types met the selection criteria. Concordance between 28-8-, 22C3-, and SP263-based assays in lung cancer, urothelial carcinoma, and squamous cell carcinoma of the head and neck was high when used to assess PD-L1 expression on tumor cells (TCs). SP142-based assays had overall low concordance with other approved assays when used to assess PD-L1 expression on TCs. Analytical concordance for assessment of PD-L1 expression on immune cells was variable and generally lower than for PD-L1 expression on TCs. CONCLUSION A large body of evidence supports the potential interchangeability of 28-8-, 22C3-, and SP263-based assays for the assessment of PD-L1 expression on TCs in lung cancer. Further studies are required in tumor types for which less evidence is available.
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Menis J, Pasello G, Remon J. Immunotherapy in malignant pleural mesothelioma: a review of literature data. Transl Lung Cancer Res 2021; 10:2988-3000. [PMID: 34295692 PMCID: PMC8264322 DOI: 10.21037/tlcr-20-673] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 06/04/2021] [Indexed: 01/09/2023]
Abstract
Malignant pleural mesothelioma (MPM) is a rare, aggressive cancer of the pleural surface, associated with asbestos exposure, whose incidence is still growing in some areas of the world. MPM is still considered a rare and an orphan disease with an unchanged median overall survival (OS) ranging from 8 to 14 months and no treatment advances in the last 15 years both in local and advanced disease. In the recent years, chronic inflammation of the mesothelium together with local tumor suppression plays a major role in the malignant transformation. Also, significant heterogeneity in both tumor and the microenvironment is at the basis of MPM biology. Preclinical data have demonstrated the immunogenicity and the lack of an effective antitumor response by the immune system in MPM thus paving the way to the development of immune therapeutics in this disease. Still there is no clear evidence of any predictive biomarker so that, given the close interaction between the immune infiltrate and mesothelial cells, a number of trials are ongoing to investigate the role and prognostic value of the immune microenvironment. In this review we summarize the rationale for immune therapeutics development in MPM, as well as, the relevant literature and ongoing trials of immune checkpoint inhibitors (ICIs) and vaccines used as both first-line treatment and beyond.
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Affiliation(s)
- Jessica Menis
- Department of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy;,Medical Oncology Department, Istituto Oncologico Veneto IRCCS, Padova, Italy
| | - Giulia Pasello
- Medical Oncology Department, Istituto Oncologico Veneto IRCCS, Padova, Italy
| | - Jordi Remon
- Department of Medical Oncology, Centro Integral Oncológico Clara Campal (HM-CIOCC), Hospital HM Delfos, HM Hospitales, Barcelona, Spain
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12
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Vizcaya D, Farahmand B, Walter AO, Kneip C, Jöhrens K, Tukiainen M, Schmitz AA. Prognosis of patients with malignant mesothelioma by expression of programmed cell death 1 ligand 1 and mesothelin in a contemporary cohort in Finland. Cancer Treat Res Commun 2020; 25:100260. [PMID: 33310366 DOI: 10.1016/j.ctarc.2020.100260] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 11/16/2020] [Accepted: 11/28/2020] [Indexed: 12/17/2022]
Abstract
OBJECTIVES We aimed to describe mesothelin (MSLN) and programmed cell death 1 ligand 1 (PD-L1) tumour overexpression amongst patients with malignant mesothelioma (MM), and their associations with survival, amongst a cohort of patients with MM in Finland. METHODS Between 2004 and 2017, 91 adults with histologically confirmed MM were identified from the Auria Biobank in Finland and followed-up using linked data from electronic health records and national statistics. Biomarker content in tumour cell membranes was determined using automated Immunohistochemistry on histological sections. Stained tumour sections were scored for MSLN and PD-L1 intensity. Adjusted associations between MSLN/PD-L1 co-expression and mortality were evaluated by estimating hazard ratios (HRs) with 95% confidence intervals (CIs) using Cox regression. RESULTS Biomarker overexpression occurred in 52 patients for MSLN and 34 patients for PD-L1 and was associated with tumour histology and certain comorbidities. Fifteen per cent of patients had a tumour that overexpressed both biomarkers; r =-0.244, p-value: 0.02. Compared with MSLN+/PD-L1+ patients, HRs (95% CIs) for death were 4.18 (1.71-10.23) for MSLN-/PD-L1+ patients, 3.03 (1.35-6.77) for MSLN-/PD-L1- patients, and 2.13 (0.97-4.67) for MSLN+/PD-L1- patients. CONCLUSIONS Both MSLN and PD-L1 markers were independent prognostic indicators in patients with MM. Overexpression of MSLN was associated with longer survival; yet their combined expression gave a better indication of survival. The risk of death was four times higher amongst MSLN-/PD-L1+ patients than in MSLN+/PD-L1+ patients.
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Affiliation(s)
| | | | | | | | - Korinna Jöhrens
- Institute of Pathology University Hospital Carl Gustav Carus, Dresden, Germany; Provitro AG, Berlin, Germany
| | - Mikko Tukiainen
- Auria Biobank, University of Turku and Turku University Hospital, Turku, Finland
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13
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Jin L, Gu W, Li X, Xie L, Wang L, Chen Z. PD-L1 and prognosis in patients with malignant pleural mesothelioma: a meta-analysis and bioinformatics study. Ther Adv Med Oncol 2020; 12:1758835920962362. [PMID: 33062064 PMCID: PMC7533928 DOI: 10.1177/1758835920962362] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 09/03/2020] [Indexed: 12/28/2022] Open
Abstract
Background The prognostic value of programmed death-ligand 1 (PD-L1) expression in patients with malignant pleural mesothelioma (MPM) has been controversial according to previous investigations. Therefore, we conducted a meta-analysis to assess the potential prognostic significance of PD-L1 expression in MPM. Methods PubMed, Embase, Web of Science, Scopus, and the Cochrane Library were thoroughly searched for relevant original articles published before 9 April 2020. The pooled hazard ratios (HRs) and 95% confidence intervals (CIs) of overall survival (OS) and progression-free survival (PFS) were calculated. The results of the meta-analysis were verified using The Cancer Genome Atlas (TCGA) dataset. Results In total 16 studies were included in our meta-analysis. A high PD-L1 expression was associated with a poor OS (HR = 1.53, 95% CI = 1.28-1.83, p < 0.001), but not a grave PFS (HR = 1.07, 95% CI = 0.82-1.39, p = 0.643) in MPM. Furthermore, the PD-L1 expression correlated with the sarcomatoid + biphasic type of MPM (odds ratio = 4.32, 95% CI = 2.16-8.64, p < 0.001). TCGA data indicated that PD-L1 was a significant prognostic factor for OS (HR = 2.069, 95% CI = 1.136-3.769, p = 0.0175), but not for PFS (HR = 1.205, 95% CI = 0.572-2.539, p = 0.624), which was in accordance with the results of the meta-analysis. Conclusion A high PD-L1 expression is a significant prognostic factor for poor OS of patients with MPM. We therefore suggest that PD-L1 expression levels can be used to predict the clinical outcomes of patients with MPM in the future.
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Affiliation(s)
- Liu Jin
- Department of Control and Prevention of Chronic Non-communicable Diseases, Jiaxing Center for Disease Control and Prevention, Jiaxing, Zhejiang, China
| | - Weiling Gu
- Office, Jiaxing Center for Disease Control and Prevention, Jiaxing, Zhejiang,China
| | - Xueqin Li
- Department of Control and Prevention of Chronic Non-communicable Diseases, Jiaxing Center for Disease Control and Prevention, Jiaxing, Zhejiang, China
| | - Liang Xie
- Department of Control and Prevention of Chronic Non-communicable Diseases, Jiaxing Center for Disease Control and Prevention, Jiaxing, Zhejiang, China
| | - Linhong Wang
- Department of Control and Prevention of Chronic Non-communicable Diseases, Jiaxing Center for Disease Control and Prevention, Jiaxing, Zhejiang, China
| | - Zhongwen Chen
- Office, Jiaxing Center for Disease Control and Prevention, No.486, Wenqiao Road, Jiaxing, Zhejiang 314050, China
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14
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Yoon JY, Nayyar R, Quest G, Pabedinskas D, Pal P, Tsao MS, Schwock J, Ko HM. PD-L1 lineage-specific quantification in malignant pleural effusions of lung adenocarcinoma by flow cytometry. Lung Cancer 2020; 148:55-61. [PMID: 32799091 DOI: 10.1016/j.lungcan.2020.07.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 07/05/2020] [Accepted: 07/09/2020] [Indexed: 12/20/2022]
Abstract
OBJECTIVES Pathologists encounter several challenges with programmed death ligand-1 (PD-L1) immunohistochemistry (IHC) tests in malignant effusions, including lineage specification (distinction between carcinoma vs. immune and mesothelial cells), background staining, sample fixation issues and inter-observer variability. We explored flow cytometric (FC) quantification of PD-L1 expression in malignant pleural effusions of lung adenocarcinoma patients as an alternative, automated, and objective quantification method compared to PD-L1 IHC. MATERIALS AND METHODS We examined 23 malignant pleural effusions of TTF-1-positive adenocarcinoma were subjected to FC with a panel of antibodies against CD45, CD3, CD200, EpCAM, D2-40 (podoplanin), and PD-L1 (clone MIH1). The PD-L1 gate was established using fluorescence-minus-one (FMO) isotype controls. Lineage-specific PD-L1 surface expression was quantified and the FC tumor proportion score (TPS) was assessed. PD-L1 IHC was performed on cell block sections using Dako PD-L1 IHC 22C3 pharmDx assay and assessed by two cytopathologists blinded to the FC PD-L1 TPS. RESULTS FC analysis allowed for the distinction between carcinoma cells (CD45-/EpCAM+/D2-40-), leukocytes (CD45+/EpCAM-/D2-40-) and mesothelial cells (CD45-/EpCAM-/D2-40+). FC PD-L1 TPS ranged from 0% to 77 %, while the 22C3 IHC PD-L1 TPS ranged from 0% to 97 %. The FC and IHC TPS values correlated positively (R = 0.8). Best concordance was observed when FC was performed and cell blocks were generated in parallel (R = 0.99). FC also allowed for simultaneous PD-L1 quantification in mesothelial and T-cells. PD-L1 expression on mesothelial cells ranged from 0% to 90.9 %, which also correlated positively with IHC TPS (R = 0.54). PD-L1 expression on T-cells was limited (0.1-2.9 %). CONCLUSION FC permits rapid, objective and lineage-specific PD-L1 surface expression quantification with limited specimen manipulation. The FC and IHC concordance was impacted by different antibody clones being used, but the positive correlation suggests potential clinical utility, especially in malignant effusion specimens.
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Affiliation(s)
- Ju-Yoon Yoon
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada; Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Graeme Quest
- Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ontario, Canada
| | - Dana Pabedinskas
- Division of Pathology, University Health Network, Toronto, Ontario, Canada
| | - Prodipto Pal
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada; Division of Pathology, University Health Network, Toronto, Ontario, Canada
| | - Ming-Sound Tsao
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada; Division of Pathology, University Health Network, Toronto, Ontario, Canada
| | - Joerg Schwock
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada; Division of Pathology, University Health Network, Toronto, Ontario, Canada
| | - Hyang-Mi Ko
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada; Division of Pathology, University Health Network, Toronto, Ontario, Canada.
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15
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Wu X, Ke X, Ni Y, Kuang L, Zhang F, Lin Y, Lin W, Xiong X, Huang H, Lin X, Zhang H. Tumor-Infiltrating Immune Cells and PD-L1 as Prognostic Biomarkers in Primary Esophageal Small Cell Carcinoma. J Immunol Res 2020; 2020:8884683. [PMID: 33457428 PMCID: PMC7785377 DOI: 10.1155/2020/8884683] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 12/04/2020] [Accepted: 12/16/2020] [Indexed: 02/05/2023] Open
Abstract
Primary esophageal small cell carcinoma (PESCC) is a weakly prevalent but lethal malignancy with early metastasis and a poor prognosis. Currently, neither effective prognostic indicators nor curative therapies are available for PESCC. Immunotherapy has now evolved into one of the most promising therapies for cancer patients. Tumor-infiltrating immune cells which are integral to the tumor immune microenvironment (TIME) are recognized as highly important for prognosis prediction, while the responsiveness to immune checkpoint blockade may be subject to the features of TIME. In this study, we aim to identify the TIME and provide indication for the applicability of immune checkpoint therapy in PESCC. We found that PD-L1 expression was detected in 33.33% (27/81) of all the patients, mostly exhibiting a stroma-only pattern and that it was positively associated with tumor-infiltrating immune cells (CD4+, CD8+, and CD163+). In 74.07% of PD-L1-positive specimens, PD-L1+CD163+ cells were colocalized more with CD4+ than CD8+ T cells. 83.95% (68/81) of all the specimens were infiltrated with more CD4+ than CD8+ T cells. Further analysis showed FoxP3+ Tregs constituted 13-27% of the total CD4+ T cell population. The Kaplan--Meier analysis indicated several factors that contribute to poor survival, including negative PD-L1 expression, rich CD4 expression, rich FoxP3 expression, a low CD8/CD4 ratio, and a high FoxP3/CD8 ratio. A nomogram model was constructed and showed good performance for survival prediction. These results highlight that a suppressive TIME contributes to poor survival of patients with PESCC. TIME analyses might be a promising approach to evaluate the possibility and effect of immune checkpoint-based immunotherapeutics in PESCC patients.
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Affiliation(s)
- Xiao Wu
- Cancer Research Center, Shantou University Medical College, Shantou, Guangdong, China
| | - Xiurong Ke
- Cancer Research Center, Shantou University Medical College, Shantou, Guangdong, China
- Department of Surgery, Laboratory for Translational Surgical Oncology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Yangpeng Ni
- Department of Pathology, Jieyang People's Hospital (Jieyang Affiliated Hospital, Sun Yat-Sen University), Jieyang, Guangdong, China
| | - Liping Kuang
- Department of Pathology, Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-Sen University, Shantou, Guangdong, China
| | - Fan Zhang
- Guangdong Provincial Key Laboratory for Breast Cancer Diagnosis and Treatment, Cancer Hospital of Shantou University Medical College, Shantou, Guangdong, China
| | - Yusheng Lin
- Cancer Research Center, Shantou University Medical College, Shantou, Guangdong, China
- Department of Hematology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Wan Lin
- Cancer Research Center, Shantou University Medical College, Shantou, Guangdong, China
| | - Xiao Xiong
- Department of General Surgery, The First Affiliated Hospital of Jinan University and Institute of Precision Cancer Medicine and Pathology, Jinan University Medical College, Guangzhou, Guangdong, China
| | - Haihua Huang
- Department of Pathology, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
| | - Xianjie Lin
- Cancer Research Center, Shantou University Medical College, Shantou, Guangdong, China
| | - Hao Zhang
- Department of General Surgery, The First Affiliated Hospital of Jinan University and Institute of Precision Cancer Medicine and Pathology, Jinan University Medical College, Guangzhou, Guangdong, China
- Research Center of Translational Medicine, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
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16
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Torlakovic E, Lim HJ, Adam J, Barnes P, Bigras G, Chan AWH, Cheung CC, Chung JH, Couture C, Fiset PO, Fujimoto D, Han G, Hirsch FR, Ilie M, Ionescu D, Li C, Munari E, Okuda K, Ratcliffe MJ, Rimm DL, Ross C, Røge R, Scheel AH, Soo RA, Swanson PE, Tretiakova M, To KF, Vainer GW, Wang H, Xu Z, Zielinski D, Tsao MS. "Interchangeability" of PD-L1 immunohistochemistry assays: a meta-analysis of diagnostic accuracy. Mod Pathol 2020; 33:4-17. [PMID: 31383961 PMCID: PMC6927905 DOI: 10.1038/s41379-019-0327-4] [Citation(s) in RCA: 122] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Revised: 06/18/2019] [Accepted: 06/19/2019] [Indexed: 11/12/2022]
Abstract
Different clones, protocol conditions, instruments, and scoring/readout methods may pose challenges in introducing different PD-L1 assays for immunotherapy. The diagnostic accuracy of using different PD-L1 assays interchangeably for various purposes is unknown. The primary objective of this meta-analysis was to address PD-L1 assay interchangeability based on assay diagnostic accuracy for established clinical uses/purposes. A systematic search of the MEDLINE database using PubMed platform was conducted using "PD-L1" as a search term for 01/01/2015 to 31/08/2018, with limitations "English" and "human". 2,515 abstracts were reviewed to select for original contributions only. 57 studies on comparison of two or more PD-L1 assays were fully reviewed. 22 publications were selected for meta-analysis. Additional data were requested from authors of 20/22 studies in order to enable the meta-analysis. Modified GRADE and QUADAS-2 criteria were used for grading published evidence and designing data abstraction templates for extraction by reviewers. PRISMA was used to guide reporting of systematic review and meta-analysis and STARD 2015 for reporting diagnostic accuracy study. CLSI EP12-A2 was used to guide test comparisons. Data were pooled using random-effects model. The main outcome measure was diagnostic accuracy of various PD-L1 assays. The 22 included studies provided 376 2×2 contingency tables for analyses. Results of our study suggest that, when the testing laboratory is not able to use an Food and Drug Administration-approved companion diagnostic(s) for PD-L1 assessment for its specific clinical purpose(s), it is better to develop a properly validated laboratory developed test for the same purpose(s) as the original PD-L1 Food and Drug Administration-approved immunohistochemistry companion diagnostic, than to replace the original PD-L1 Food and Drug Administration-approved immunohistochemistry companion diagnostic with a another PD-L1 Food and Drug Administration-approved companion diagnostic that was developed for a different purpose.
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Affiliation(s)
- Emina Torlakovic
- Saskatchewan Health Authority (SHA), Saskatoon, SK, Canada. .,College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada.
| | - Hyun J. Lim
- 0000 0001 2154 235Xgrid.25152.31College of Medicine, University of Saskatchewan, Saskatoon, SK Canada
| | - Julien Adam
- 0000 0001 2284 9388grid.14925.3bGustave-Roussy Cancer Campus, Villejuif, France
| | - Penny Barnes
- 0000 0004 1936 8200grid.55602.34Dalhousie University, Halifax, NS Canada
| | - Gilbert Bigras
- grid.17089.37Cross Cancer Institute, Edmonton, AB Canada
| | | | - Carol C. Cheung
- 0000 0004 0474 0428grid.231844.8University Health Network, Toronto, ON Canada ,0000 0001 2157 2938grid.17063.33University of Toronto, Toronto, ON Canada
| | - Jin-Haeng Chung
- 0000 0004 0647 3378grid.412480.bSeoul National University Bundang Hospital, Seongnam, Gyeonggi-do Republic of Korea
| | - Christian Couture
- 0000 0004 1936 8390grid.23856.3aInstitut universitaire de cardiologie et de pneumologie de Québec - Université Laval (IUCPQ-UL), Quebec City, QC Canada
| | - Pierre O. Fiset
- 0000 0004 1936 8649grid.14709.3bMcGill University Health Science Centre, Montreal, QC Canada
| | - Daichi Fujimoto
- 0000 0004 0466 8016grid.410843.aKobe City Medical Center General Hospital, Kobe, Japan
| | - Gang Han
- 0000 0004 4687 2082grid.264756.4School of Public Health, Texas A&M University, College Station, TX USA
| | - Fred R. Hirsch
- 0000 0000 9963 6690grid.425214.4Center for Thoracic Oncology, Mount Sinai Cancer, Mount Sinai Health System, New York, NY USA
| | - Marius Ilie
- 0000 0001 2322 4179grid.410528.aHôpital Pasteur, FHU OncoAge, Biobanque BB-0033-00025, Université Côte d’Azur, CHU de Nice, Nice, France
| | - Diana Ionescu
- 0000 0001 0702 3000grid.248762.dBritish Columbia Cancer Agency, Vancouver, BC Canada
| | - Chao Li
- 0000 0004 0605 1140grid.415110.0Fujian Cancer Hospital and Fujian Medical University Cancer Hospital, Fuzhou, Fujian China
| | - Enrico Munari
- 0000 0004 1760 2489grid.416422.7IRCCS Sacro Cuore Don Calabria Hospital, Negrar, Verona Italy
| | - Katsuhiro Okuda
- 0000 0001 0728 1069grid.260433.0Nagoya City University Graduate School of Medical Science, Nagoya, Japan
| | - Marianne J. Ratcliffe
- 0000 0004 5929 4381grid.417815.ePrecision Medicine and Genomics, AstraZeneca, Cambridge, UK
| | - David L. Rimm
- 0000000419368710grid.47100.32Yale University School of Medicine, New Haven, CT USA
| | - Catherine Ross
- 0000 0004 1936 8227grid.25073.33Hamilton Health Sciences, McMaster University, Hamilton, ON Canada
| | - Rasmus Røge
- 0000 0004 0646 7349grid.27530.33Aalborg University Hospital, Aalborg, Denmark
| | - Andreas H. Scheel
- 0000 0000 8852 305Xgrid.411097.aUniversity Hospital Cologne, Institute of Pathology, Cologne, Germany
| | - Ross A. Soo
- 0000 0004 0621 9599grid.412106.0National University Hospital, Singapore, Singapore
| | - Paul E. Swanson
- 0000000122986657grid.34477.33University of Washington, Seattle, WA USA ,0000 0004 1936 7697grid.22072.35Cumming School of Medicine, University of Calgary, Calgary, AB Canada
| | - Maria Tretiakova
- 0000000122986657grid.34477.33University of Washington, Seattle, WA USA
| | - Ka F. To
- 0000 0004 0474 0428grid.231844.8University Health Network, Toronto, ON Canada
| | - Gilad W. Vainer
- 0000 0001 0518 6922grid.413449.fTel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Hangjun Wang
- 0000 0000 9064 4811grid.63984.30McGill University Health Center and McGill University, Montreal, QC Canada
| | - Zhaolin Xu
- grid.17089.37Cross Cancer Institute, Edmonton, AB Canada
| | | | - Ming-Sound Tsao
- 0000 0004 0474 0428grid.231844.8University Health Network, Toronto, ON Canada ,0000 0001 2157 2938grid.17063.33University of Toronto, Toronto, ON Canada
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Chu GJ, van Zandwijk N, Rasko JEJ. The Immune Microenvironment in Mesothelioma: Mechanisms of Resistance to Immunotherapy. Front Oncol 2019; 9:1366. [PMID: 31867277 PMCID: PMC6908501 DOI: 10.3389/fonc.2019.01366] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Accepted: 11/19/2019] [Indexed: 12/18/2022] Open
Abstract
Although mesothelioma is the consequence of a protracted immune response to asbestos fibers and characterized by a clear immune infiltrate, novel immunotherapy approaches show less convincing results as compared to those seen in melanoma and non-small cell lung cancer. The immune suppressive microenvironment in mesothelioma is likely contributing to this therapy resistance. Therefore, it is important to explore the characteristics of the tumor microenvironment for explanations for this recalcitrant behavior. This review describes the stromal, cytokine, metabolic, and cellular milieu of mesothelioma, and attempts to make connection with the outcome of immunotherapy trials.
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Affiliation(s)
- Gerard J. Chu
- Gene and Stem Cell Therapy Program Centenary Institute, University of Sydney, Department of Immunology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - Nico van Zandwijk
- Sydney Medical School, Sydney Local Health District (Concord Repatriation General Hospital), University of Sydney, Sydney, NSW, Australia
| | - John E. J. Rasko
- Gene and Stem Cell Therapy Program Centenary Institute, University of Sydney, Cell & Molecular Therapies, Royal Prince Alfred Hospital, Sydney, Sydney Medical School, University of Sydney, Sydney, NSW, Australia
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18
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Sudoyo AW, Kurniawan AN, Kusumo GD, Putra TP, Rexana FA, Yunus M, Budiyati AD, Kurniawan D, Utama A, Utomo AR. Increased CD8 Tumor Infiltrating Lymphocytes in Colorectal Cancer Microenvironment Supports an Adaptive Immune Resistance Mechanism of PD-L1 Expression. Asian Pac J Cancer Prev 2019; 20:3421-3427. [PMID: 31759368 PMCID: PMC7063011 DOI: 10.31557/apjcp.2019.20.11.3421] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Tumor cells express programmed death ligand-1 (PD-L1) through several biological processes, thereby having different clinical significance depending on the underlying mechanism of expression. Currently, mechanisms leading to PDL1 gene expression in colorectal cancer (CRC) are not fully understood. METHODS We investigated 98 Indonesia CRC patients to determine PD-L1 protein expressions and their correlations with PD-L1 gene copy number status, tumor infiltrating lymphocytes (TILs), tumor mutational profile, as well as clinicopathologic features. RESULTS Our investigation demonstrated that 18% of patients positively expressed PD-L1. Further analysis on PD-L1 copy number revealed that all PD-L1+ tumors had normal copy number, indicating that the expression of PD-L1 was not a consequence of genetic amplification of PD-L1. From TILs analysis, there was a significant increase of CD8 in all tumor cells expressing PD-L1 (P=0.0051), indicating that the inducible PD-L1 expression was the prominent mechanism occurred in CRC. Furthermore, the expression of PD-L1 in this CRC population was significantly associated with high frequency of MSI compared to the remainder PD-L1- tumors (P=0.0001), suggesting the natural immunogenicity of tumors via MSI status plays role in attracting immune response. On the other hand, p53 mutations which were frequently observed within Indonesian CRCs (76.5%), they were not associated with PD-L1 expression (p=0.1108), as well as KRAS gene (29.6%; p=0.5772) and BRAF gene mutations (5%; p=0.2171). CONCLUSION Our study demonstrated that PD-L1 expressions in CRC were predominantly found as a consequence of infiltrating CD8 T lymphocytes that in part arise in the setting of microsatellite instability. Taken together, our findings further support the role of adaptive immune resistance to drive PD-L1 induction in tumor microenvironment and may provide important rationale for strategy implementation of immunotherapy for CRC cases.<br />.
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Affiliation(s)
- Aru W Sudoyo
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Universitas Indonesia, Jakarta, Indonesia.,Medistra Hospital, Jakarta, Indonesia
| | | | | | | | | | | | | | | | - Andi Utama
- Stem Cell and Cancer Institute, Jakarta, Indonesia
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19
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Abstract
Thymic malignancies are rare mediastinal cancers, classified according to the World Health Organization's histopathologic classification which distinguishes thymomas from thymic carcinomas. One key consideration when discussing immunotherapy for thymic epithelial tumors is that one-third of patients diagnosed with thymomas present at the time of diagnosis with autoimmune disorders, the most common being myasthenia gravis. The first step in the understanding of autoimmunity in thymic epithelial tumors is to distinguish true autoimmune disorders from paraneoplastic syndromes; besides pathophysiology, clinical correlates, impact on oncological management and survival may differ strongly. Autoimmune disorders are related to a deregulation in the physiological role of the thymus (i.e. to induce central tolerance to tissue self-antigens) through control of differentiation and subsequent positive and negative selection of immature T cells; from a clinical standpoint, in thymomas, once autoimmune disorders are present, they may not regress significantly after thymectomy. PD-L1 expression, while observed in more than 90% of epithelial cells of the normal thymus with a medullar tropism respecting Hassall's corpuscles, has also been identified in thymomas and thymic carcinomas using various immunohistochemistry protocols. Immune checkpoint inhibitors of the PD-1/PD-L1 axis have been assessed in advanced and metastatic thymic epithelial tumors, mainly thymic carcinomas. Several case reports have been published, and four trials have assessed the efficacy and safety of these inhibitors. Immunotherapy is not standard given the frequent occurrence of severe autoimmune disorders, and clinical trials are ongoing. Thymic malignancies are rare tumors. Advanced, metastatic and refractory thymic tumors may be treated with chemotherapy. Autoimmune disorders, such as myasthenia gravis, are observed in 30% of cases. PD-L1 expression is a hallmark of thymic epithelial cells. Immunotherapy is not standard, given the occurrence of autoimmune disorders.
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Affiliation(s)
- Nicolas Girard
- Correspondence to: Nicolas Girard, Institut Curie, 26 rue d’Ulm, 75248 Paris Cedex 05, France.
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Lozano MD, Abengozar-Muela M, Echeveste JI, Subtil JC, Bertó J, Gúrpide A, Calvo A, de Andrea CE. Programmed death-ligand 1 expression on direct Pap-stained cytology smears from non-small cell lung cancer: Comparison with cell blocks and surgical resection specimens. Cancer Cytopathol 2019; 127:470-480. [PMID: 31245924 DOI: 10.1002/cncy.22155] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 05/03/2019] [Accepted: 05/15/2019] [Indexed: 12/25/2022]
Abstract
BACKGROUND Programmed death-ligand 1 (PD-L1) expression, as assessed by immunohistochemistry (IHC), is used to select patients with non-small cell lung cancer (NSCLC) for anti-programmed cell death protein 1 (PD-1)/PD-L1 therapy. The current study evaluated the feasibility and efficacy of PD-L1 immunostaining and quantitation on direct Papanicolaou-stained cytological smears compared with formalin-fixed paraffin-embedded samples (cytological cell blocks and surgical resection specimens) in NSCLC cases using 2 commercially available assays: the PD-L1 IHC 22C3 pharmDx assay (Agilent Technologies/Dako, Carpinteria, CA, USA) and the Ventana SP263 Assay (Ventana Medical Systems Inc, Tucson, Arizona). METHODS PD-L1 immunostaining using either both or one of the assays was tested in 117 sets of paired samples obtained from 62 NSCLC cases. The tumor proportion score was reported in every case following the recommendations of the International Association for the Study of Lung Cancer (IASLC). RESULTS In 57 sets of samples, both PD-L1 assays were used. Due to the availability of samples, only 1 assay was performed in 3 sets of samples and in 2 cases, only cytology smears were used and tested for both assays. A total of 113 sets of paired samples finally were evaluated; 4 cases could not be studied due to intense nonspecific background staining. A significant concordance between the 2 assays on cytological smears was found. Concordance between paired cytological smears and formalin-fixed paraffin-embedded samples was observed in 97.3% of the cases. CONCLUSIONS The quantification of PD-L1 expression on direct Papanicolaou-stained cytology smears is feasible and reliable for both PD-L1 assays.
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Affiliation(s)
- Maria D Lozano
- Department of Pathology, University of Navarra Clinic, University of Navarra, Pamplona, Spain.,CIBERONC, Centro de Investigación Biomédica en Red de Cáncer, Madrid, Spain.,Health Research Institute of Navarra (IDISNA), Pamplona, Spain
| | - Marta Abengozar-Muela
- Department of Pathology, University of Navarra Clinic, University of Navarra, Pamplona, Spain
| | - José I Echeveste
- Department of Pathology, University of Navarra Clinic, University of Navarra, Pamplona, Spain
| | - José Carlos Subtil
- Department of Gastroenterology, University of Navarra Clinic, University of Navarra, Pamplona, Spain
| | - Juan Bertó
- Pulmonary Department, University of Navarra Clinic, University of Navarra, Pamplona, Spain
| | - Alfonso Gúrpide
- Department of Medical Oncology, University of Navarra Clinic, University of Navarra, Pamplona, Spain
| | - Alfonso Calvo
- Health Research Institute of Navarra (IDISNA), Pamplona, Spain.,Center for Applied Medical Research (CIMA), University of Navarra, Pamplona, Spain.,Department of Histology and Pathology, University of Navarra, Pamplona, Spain
| | - Carlos E de Andrea
- Department of Pathology, University of Navarra Clinic, University of Navarra, Pamplona, Spain.,CIBERONC, Centro de Investigación Biomédica en Red de Cáncer, Madrid, Spain.,Health Research Institute of Navarra (IDISNA), Pamplona, Spain.,Department of Histology and Pathology, University of Navarra, Pamplona, Spain
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