News on immune checkpoint inhibitors as immunotherapy strategies in adult and pediatric solid tumors: Seminars in Cancer Biology

O. Melaiu, V. Lucarini, R. Giovannoni, D. Fruci, F. Gemignani

Research output: Contribution to journalArticlepeer-review

Abstract

Immune checkpoint inhibitors (ICIs) have shown unprecedented benefits in various adult cancers, and this success has prompted the exploration of ICI therapy even in childhood malignances. Although the use of ICIs as individual agents has achieved disappointing response rates, combinational therapies are likely to promise better results. However, only a subset of patients experienced prolonged clinical effects, thus suggesting the need to identify robust bio-markers that predict individual clinical response or resistance to ICI therapy as the main challenge. In this review, we focus on how the use of ICIs in adult cancers can be translated into pediatric malignances. We discuss the physiological mechanism of action of each IC, including PD-1, PD-L1 and CTLA-4 and the new emerging ones, LAG-3, TIM-3, TIGIT, B7-H3, BTLA and IDO-1, and evaluate their prognostic value in both adult and childhood tumors. Furthermore, we offer an overview of preclinical models and clinical trials currently under investigation to improve the effectiveness of cancer immunotherapies in these patients. Finally, we outline the main predictive factors that influence the efficacy of ICIs, in order to lay the basis for the development of a pan-cancer immunogenomic model, able to direct young patients towards more specific immunotherapy. © 2020
Original languageEnglish
JournalSemin. Cancer Biol.
DOIs
Publication statusPublished - 2020

Keywords

  • Adult cancers
  • Clinical trials
  • Immune checkpoint inhibitors
  • Immunotherapy
  • Pediatric cancers

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