ACVR1 R206H cooperates with H3.1K27M in promoting diffuse intrinsic pontine glioma pathogenesis

Nat Commun. 2019 Mar 4;10(1):1023. doi: 10.1038/s41467-019-08823-9.

Abstract

Diffuse intrinsic pontine glioma (DIPG) is an incurable pediatric brain tumor, with approximately 25% of DIPGs harboring activating ACVR1 mutations that commonly co-associate with H3.1K27M mutations. Here we show that in vitro expression of ACVR1 R206H with and without H3.1K27M upregulates mesenchymal markers and activates Stat3 signaling. In vivo expression of ACVR1 R206H or G328V with H3.1K27M and p53 deletion induces glioma-like lesions but is not sufficient for full gliomagenesis. However, in combination with PDGFA signaling, ACVR1 R206H and H3.1K27M significantly decrease survival and increase tumor incidence. Treatment of ACVR1 R206H mutant DIPGs with exogenous Noggin or the ACVR1 inhibitor LDN212854 significantly prolongs survival, with human ACVR1 mutant DIPG cell lines also being sensitive to LDN212854 treatment. Together, our results demonstrate that ACVR1 R206H and H3.1K27M promote tumor initiation, accelerate gliomagenesis, promote a mesenchymal profile partly due to Stat3 activation, and identify LDN212854 as a promising compound to treat DIPG.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Activin Receptors, Type I / genetics
  • Activin Receptors, Type I / metabolism*
  • Animals
  • Astrocytoma / drug therapy
  • Astrocytoma / genetics
  • Astrocytoma / metabolism*
  • Astrocytoma / pathology
  • Brain Stem Neoplasms / drug therapy
  • Brain Stem Neoplasms / genetics
  • Brain Stem Neoplasms / metabolism*
  • Brain Stem Neoplasms / pathology
  • Carrier Proteins / pharmacology
  • Cell Line, Tumor / drug effects
  • Cell Proliferation
  • Disease Models, Animal
  • Gene Expression Profiling
  • Gene Expression Regulation, Neoplastic / genetics
  • Genome, Human / genetics*
  • Glioma / drug therapy
  • Glioma / genetics
  • Glioma / metabolism*
  • Glioma / pathology
  • Histones / genetics
  • Histones / metabolism*
  • Humans
  • Mice
  • Mutation
  • Platelet-Derived Growth Factor / metabolism
  • Pyrazoles / pharmacology
  • Pyrimidines / pharmacology
  • Quinolines / pharmacology
  • STAT3 Transcription Factor / metabolism
  • Signal Transduction

Substances

  • Carrier Proteins
  • Histones
  • LDN-212854
  • Platelet-Derived Growth Factor
  • Pyrazoles
  • Pyrimidines
  • Quinolines
  • STAT3 Transcription Factor
  • STAT3 protein, human
  • platelet-derived growth factor A
  • noggin protein
  • ACVR1 protein, human
  • Activin Receptors, Type I