Integrative immune transcriptomic classification improves patient selection for precision immunotherapy in advanced gastro-oesophageal adenocarcinoma.

Fecha de publicación: Fecha Ahead of Print:

Autores de INCLIVA

Participantes ajenos a INCLIVA

  • Gonzalez-Vilanova, A
  • Gil, M
  • Dura, A
  • Richart, P
  • Alonso, N

Grupos y Plataformas de I+D+i

Abstract

BACKGROUND: Advanced gastro-oesophageal cancer (GEA) treatment has been improved by the introduction of immune checkpoint inhibitors (CPIs), yet identifying predictive biomarkers remains a priority, particularly in patients with a combined positive score (CPS) < 5, where the benefit is less clear. Our study assesses certain immune microenvironment features related to sensitivity or resistance to CPIs with the aim of implementing a personalised approach across CPS < 5 GEA. DESIGN: Through integrative transcriptomic and clinicopathological analyses, we studied in both a retrospective and a prospective cohort, the immune tumour microenvironment features. We analysed the cell types composing the immune infiltrate highlighting their functional activity. RESULTS: This integrative study allowed the identification of four different groups across our patients. Among them, we identified a cluster whose tumours expressed the most gene signatures related to immunomodulatory pathways and immunotherapy response. These tumours presented an enriched immune infiltrate showing high immune function activity that could potentially achieve the best benefit from CPIs. Finally, our findings were proven in an external CPI-exposed population, where the use of our transcriptomic results combined with CPS helped better identify those patients who could benefit from immunotherapy than using CPS alone (p = 0.043). CONCLUSIONS: This transcriptomic classification could improve precision immunotherapy for GEA.

© 2022. The Author(s).

Datos de la publicación

ISSN/ISSNe:
0007-0920, 1532-1827

BRITISH JOURNAL OF CANCER  NATURE PUBLISHING GROUP

Tipo:
Article
Páginas:
2198-2206
PubMed:
36253523

Citas Recibidas en Web of Science: 5

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Financiación

Proyectos y Estudios Clínicos

CONTRATOS JUAN RODES

Investigador Principal: DESAMPARADOS RODA PEREZ

2016/197 . INSTITUTO SALUD CARLOS III . 2017

Plataformas biobancos PT17/0015/0049

Investigador Principal: ANTONIO FERRANDEZ IZQUIERDO

PT17/0015/0049 . INSTITUTO SALUD CARLOS III . 2018

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