Nivolumab-induced synovitis is characterized by florid T cell infiltration and rapid resolution with synovial biopsy-guided therapy

Background Immune checkpoint inhibitors (ICIs) are associated with rheumatic and musculoskeletal immune-related adverse events (irAEs) in 5%–20% of patients. Currently, patients refractory to corticosteroids and conventional disease-modifying antirheumatic drugs (cDMARD) are treated with biological...

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Main Authors: Susanna Proudman, Sonja Klebe, William Murray-Brown, Tom D Wilsdon, Helen Weedon, Shawgi Sukumaran, Jennifer G Walker, Malcolm D Smith, Mihir D Wechalekar
Format: Article
Language:English
Published: BMJ Publishing Group 2020-05-01
Series:Journal for ImmunoTherapy of Cancer
Online Access:https://jitc.bmj.com/content/8/1/e000281.full
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author Susanna Proudman
Sonja Klebe
William Murray-Brown
Tom D Wilsdon
Helen Weedon
Shawgi Sukumaran
Jennifer G Walker
Malcolm D Smith
Mihir D Wechalekar
author_facet Susanna Proudman
Sonja Klebe
William Murray-Brown
Tom D Wilsdon
Helen Weedon
Shawgi Sukumaran
Jennifer G Walker
Malcolm D Smith
Mihir D Wechalekar
author_sort Susanna Proudman
collection DOAJ
description Background Immune checkpoint inhibitors (ICIs) are associated with rheumatic and musculoskeletal immune-related adverse events (irAEs) in 5%–20% of patients. Currently, patients refractory to corticosteroids and conventional disease-modifying antirheumatic drugs (cDMARD) are treated with biological DMARDs (bDMARDs) targeting tumor necrosis factor α (TNFα) and interleukin-6, although without a clear biological rationale. Synovial tissue (ST) biopsy presents a valuable opportunity to investigate irAE pathogenesis and appropriately stratify bDMARD use in refractory irAE patients.Case presentation We provide the first report of comparative, parallel ST and synovial fluid (SF) analyses of severe, cDMARD-refractory, seronegative polyarthritis, classified as a grade 3 irAE occurring in response to nivolumab treatment for metastatic squamous cell lung cancer, in comparison with ST and SF from patients with untreated rheumatoid arthritis (RA). We investigated immunohistochemical labeling of ST cytokine expression as a biological rationale for selecting therapy. Flow cytometric analysis of lymphocytes from ST, SF and blood collected before and after synovial biopsy-guided therapy, in comparison with RA, were evaluated for insights into the immunopathogenesis of irAE. Immunolabeling of ST demonstrated an excess of TNFα cytokine expression. Subsequent treatment with infliximab resulted in resolution of inflammatory symptoms and a significant reduction in C reactive protein levels. Flow cytometric analysis of synovial infiltrates indicated absence of programmed cell death protein-1 (PD-1) receptor positivity despite cessation of nivolumab approximately 200 days prior to the analyzes.Conclusions A deeper understanding of the immunopathogenetic basis of immune activation in irAEs is required in order to select therapy that is likely to be the most effective. This is the first report investigating parallel blood, ST and SF in ICI-induced severe rheumatic irAE. Use of a bDMARD directed by the dominant inflammatory cytokine achieved resolution of synovitis while maintaining cancer remission.
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spelling doaj-art-3ff420a1c1334dfdbe3137f84bc8f0e12024-11-09T01:50:08ZengBMJ Publishing GroupJournal for ImmunoTherapy of Cancer2051-14262020-05-018110.1136/jitc-2019-000281Nivolumab-induced synovitis is characterized by florid T cell infiltration and rapid resolution with synovial biopsy-guided therapySusanna Proudman0Sonja Klebe1William Murray-Brown2Tom D Wilsdon3Helen Weedon4Shawgi Sukumaran5Jennifer G Walker6Malcolm D Smith7Mihir D Wechalekar82Royal Adelaide Hospital, Rheumatology Unit, Adelaide, Australia6 Department of Anatomical Pathology, Flinders Medical Centre, Bedford Park, South Australia, Australia1 College of Medicine & Public Health, Flinders University, Adelaide, South Australia, Australia2 Rheumatology Department, Flinders Medical Centre, Adelaide, South Australia, Australia1 College of Medicine & Public Health, Flinders University, Adelaide, South Australia, Australia4 Oncology Department, Flinders Medical Centre, Adelaide, South Australia, Australia1 College of Medicine & Public Health, Flinders University, Adelaide, South Australia, Australia1 College of Medicine & Public Health, Flinders University, Adelaide, South Australia, Australia1 College of Medicine & Public Health, Flinders University, Adelaide, South Australia, AustraliaBackground Immune checkpoint inhibitors (ICIs) are associated with rheumatic and musculoskeletal immune-related adverse events (irAEs) in 5%–20% of patients. Currently, patients refractory to corticosteroids and conventional disease-modifying antirheumatic drugs (cDMARD) are treated with biological DMARDs (bDMARDs) targeting tumor necrosis factor α (TNFα) and interleukin-6, although without a clear biological rationale. Synovial tissue (ST) biopsy presents a valuable opportunity to investigate irAE pathogenesis and appropriately stratify bDMARD use in refractory irAE patients.Case presentation We provide the first report of comparative, parallel ST and synovial fluid (SF) analyses of severe, cDMARD-refractory, seronegative polyarthritis, classified as a grade 3 irAE occurring in response to nivolumab treatment for metastatic squamous cell lung cancer, in comparison with ST and SF from patients with untreated rheumatoid arthritis (RA). We investigated immunohistochemical labeling of ST cytokine expression as a biological rationale for selecting therapy. Flow cytometric analysis of lymphocytes from ST, SF and blood collected before and after synovial biopsy-guided therapy, in comparison with RA, were evaluated for insights into the immunopathogenesis of irAE. Immunolabeling of ST demonstrated an excess of TNFα cytokine expression. Subsequent treatment with infliximab resulted in resolution of inflammatory symptoms and a significant reduction in C reactive protein levels. Flow cytometric analysis of synovial infiltrates indicated absence of programmed cell death protein-1 (PD-1) receptor positivity despite cessation of nivolumab approximately 200 days prior to the analyzes.Conclusions A deeper understanding of the immunopathogenetic basis of immune activation in irAEs is required in order to select therapy that is likely to be the most effective. This is the first report investigating parallel blood, ST and SF in ICI-induced severe rheumatic irAE. Use of a bDMARD directed by the dominant inflammatory cytokine achieved resolution of synovitis while maintaining cancer remission.https://jitc.bmj.com/content/8/1/e000281.full
spellingShingle Susanna Proudman
Sonja Klebe
William Murray-Brown
Tom D Wilsdon
Helen Weedon
Shawgi Sukumaran
Jennifer G Walker
Malcolm D Smith
Mihir D Wechalekar
Nivolumab-induced synovitis is characterized by florid T cell infiltration and rapid resolution with synovial biopsy-guided therapy
Journal for ImmunoTherapy of Cancer
title Nivolumab-induced synovitis is characterized by florid T cell infiltration and rapid resolution with synovial biopsy-guided therapy
title_full Nivolumab-induced synovitis is characterized by florid T cell infiltration and rapid resolution with synovial biopsy-guided therapy
title_fullStr Nivolumab-induced synovitis is characterized by florid T cell infiltration and rapid resolution with synovial biopsy-guided therapy
title_full_unstemmed Nivolumab-induced synovitis is characterized by florid T cell infiltration and rapid resolution with synovial biopsy-guided therapy
title_short Nivolumab-induced synovitis is characterized by florid T cell infiltration and rapid resolution with synovial biopsy-guided therapy
title_sort nivolumab induced synovitis is characterized by florid t cell infiltration and rapid resolution with synovial biopsy guided therapy
url https://jitc.bmj.com/content/8/1/e000281.full
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