Mutant TP53 switches therapeutic vulnerability during gastric cancer progression within interleukin-6 family cytokines

Anne Huber, Amr H. Allam, Christine Dijkstra, Stefan Thiem, Jennifer Huynh, Ashleigh R. Poh, Joshua Konecnik, Saumya P. Jacob, Rita Busuttil, Yang Liao, David Chisanga, Wei Shi, Mariah G. Alorro, Stephen Forrow, Daniele V.F. Tauriello, Eduard Batlle, Alex Boussioutas, David S. Williams, Michael Buchert, Matthias ErnstMoritz F. Eissmann

Research output: Contribution to journalArticleResearchpeer-review

3 Citations (Scopus)

Abstract

Although aberrant activation of the KRAS and PI3K pathway alongside TP53 mutations account for frequent aberrations in human gastric cancers, neither the sequence nor the individual contributions of these mutations have been clarified. Here, we establish an allelic series of mice to afford conditional expression in the glandular epithelium of KrasG12D;Pik3caH1047R or Trp53R172H and/or ablation of Pten or Trp53. We find that KrasG12D;Pik3caH1047R is sufficient to induce adenomas and that lesions progress to carcinoma when also harboring Pten deletions. An additional challenge with either Trp53 loss- or gain-of-function alleles further accelerated tumor progression and triggered metastatic disease. While tumor-intrinsic STAT3 signaling in response to gp130 family cytokines remained as a gatekeeper for all stages of tumor development, metastatic progression required a mutant Trp53-induced interleukin (IL)-11 to IL-6 dependency switch. Consistent with the poorer survival of patients with high IL-6 expression, we identify IL-6/STAT3 signaling as a therapeutic vulnerability for TP53-mutant gastric cancer.

Original languageEnglish
Article number114616
Number of pages21
JournalCell Reports
Volume43
Issue number8
DOIs
Publication statusPublished - 27 Aug 2024

Keywords

  • animal model
  • CP: Cancer
  • cytokine signaling
  • gastric carcinoma
  • interleukin-11
  • interleukin-6
  • metastasis
  • organoids
  • STAT3
  • TP53
  • WNT
  • Dissecting the role of group 2 innate lymphoid cells in gastric cancer

    Buchert, M. (Primary Chief Investigator (PCI)), Eissman, M. F. (Chief Investigator (CI)), Locksley, R. (Chief Investigator (CI)), Ernst, M. (Associate Investigator (AI)), Li, X. (Associate Investigator (AI)), Boussioutas, A. (Associate Investigator (AI)), Shi, W. (Associate Investigator (AI)), Lee, J. (Associate Investigator (AI)) & Pal, B. (Associate Investigator (AI))

    1/01/2331/12/26

    Project: Research

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