Frontiers in Medicine (Jul 2023)

Autoimmune bullous dermatoses in cancer patients treated by immunotherapy: a literature review and Italian multicentric experience

  • Martina Merli,
  • Martina Accorinti,
  • Maurizio Romagnuolo,
  • Maurizio Romagnuolo,
  • Angelo Marzano,
  • Angelo Marzano,
  • Giovanni Di Zenzo,
  • Francesco Moro,
  • Emiliano Antiga,
  • Roberto Maglie,
  • Emanuele Cozzani,
  • Emanuele Cozzani,
  • Aurora Parodi,
  • Aurora Parodi,
  • Giulia Gasparini,
  • Giulia Gasparini,
  • Pietro Sollena,
  • Clara De Simone,
  • Clara De Simone,
  • Marzia Caproni,
  • Luigi Pisano,
  • Davide Fattore,
  • Riccardo Balestri,
  • Paolo Sena,
  • Pamela Vezzoli,
  • Miriam Teoli,
  • Marco Ardigò,
  • Camilla Vassallo,
  • Andrea Michelerio,
  • Andrea Michelerio,
  • Rosanna Rita Satta,
  • Emi Dika,
  • Emi Dika,
  • Barbara Melotti,
  • Simone Ribero,
  • Pietro Quaglino

DOI
https://doi.org/10.3389/fmed.2023.1208418
Journal volume & issue
Vol. 10

Abstract

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Cutaneous immune-related adverse events are frequently associated with immune checkpoint inhibitors (ICIs) administration in cancer patients. In fact, these monoclonal antibodies bind the cytotoxic T-lymphocyte antigen-4 and programmed cell death-1/ligand 1 leading to a non-specific activation of the immune system against both tumoral cells and self-antigens. The skin is the most frequently affected organ system appearing involved especially by inflammatory manifestations such as maculopapular, lichenoid, psoriatic, and eczematous eruptions. Although less common, ICI-induced autoimmune blistering diseases have also been reported, with an estimated overall incidence of less than 5%. Bullous pemphigoid-like eruption is the predominant phenotype, while lichen planus pemphigoides, pemphigus vulgaris, and mucous membrane pemphigoid have been described anecdotally. Overall, they have a wide range of clinical presentations and often overlap with each other leading to a delayed diagnosis. Achieving adequate control of skin toxicity in these cases often requires immunosuppressive systemic therapies and/or interruption of ICI treatment, presenting a therapeutic challenge in the context of cancer management. In this study, we present a case series from Italy based on a multicenter, retrospective, observational study, which included 45 patients treated with ICIs who developed ICI-induced bullous pemphigoid. In addition, we performed a comprehensive review to identify the cases reported in the literature on ICI-induced autoimmune bullous diseases. Several theories seeking their underlying pathogenesis have been reported and this work aims to better understand what is known so far on this issue.

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