Programmed death 1 expression in the peritumoral microenvironment is associated with a poorer prognosis in classical Hodgkin lymphoma

Young Wha Koh, Yoon Kyung Jeon, Dok Hyun Yoon, Cheolwon Suh, Jooryung Huh

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

Programmed cell death protein-1 (PD-1) inhibitor may be therapeutic in patients with relapsed or refractory classical Hodgkin’s lymphoma (cHL). This study examined the prognostic significance of PD-1 and two PD-1 ligands (PD-L1 and PD-L2) in uniformly treated cHL. Diagnostic tissues from 109 cHL patients treated with a doxorubicin, bleomycin, vinblastine, and dacarbazine regimen were evaluated retrospectively by immunohistochemical analysis of PD-L1, PD-L2, and PD-1 expressions. The median follow-up time was 4.91 years (range, 0.17–17.33 years). Thirteen patients (11 %) expressed PD-1 protein in the peritumoral microenvironment, which was associated with poor overall survival (OS) (P = 0.017). PD-L1 or PD-L2 expression was not associated with OS. There was no correlation between PD-L1 and PD-1 expression or between PD-L2 and PD-1 expression. Multivariate analysis identified PD-1 protein as an independent prognostic factor for OS (P = 0.019). Subgroup analysis according to the Ann Arbor stage of cHL showed that PD-1 protein expression had a prognostic value in limited-stage cHL (P = 0.048). PD-1 is an independent prognostic factor in cHL and may allow the identification of a subgroup of patients with limited-stage cHL who require more intensive therapy and who may benefit from anti-PD-1 agents.

Original languageEnglish (US)
Pages (from-to)7507-7514
Number of pages8
JournalTumor Biology
Volume37
Issue number6
DOIs
StatePublished - Jun 1 2016

Bibliographical note

Publisher Copyright:
© 2015, International Society of Oncology and BioMarkers (ISOBM).

Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.

Keywords

  • Hodgkin’s lymphoma
  • PD-1
  • PD-L1
  • PD-L2
  • Prognosis

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