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Noll A, Myers C, Biery MC, Meechan M, Tahiri S, Rajendran A, Berens ME, Paine D, Byron S, Zhang J, Winter C, Pakiam F, Leary SES, Cole BL, Jackson ER, Dun MD, Foster JB, Evans MK, Pattwell SS, Olson JM, Vitanza NA. Therapeutic HDAC inhibition in hypermutant diffuse intrinsic pontine glioma. Neoplasia 2023; 43:100921. [PMID: 37603953 PMCID: PMC10465940 DOI: 10.1016/j.neo.2023.100921] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 07/28/2023] [Accepted: 08/02/2023] [Indexed: 08/23/2023]
Abstract
Constitutional mismatch repair deficiency (CMMRD) is a cancer predisposition syndrome associated with the development of hypermutant pediatric high-grade glioma, and confers a poor prognosis. While therapeutic histone deacetylase (HDAC) inhibition of diffuse intrinsic pontine glioma (DIPG) has been reported; here, we use a clinically relevant biopsy-derived hypermutant DIPG model (PBT-24FH) and a CRISPR-Cas9 induced genetic model to evaluate the efficacy of HDAC inhibition against hypermutant DIPG. We screened PBT-24FH cells for sensitivity to a panel of HDAC inhibitors (HDACis) in vitro, identifying two HDACis associated with low nanomolar IC50s, quisinostat (27 nM) and romidepsin (2 nM). In vivo, quisinostat proved more efficacious, inducing near-complete tumor regression in a PBT-24FH flank model. RNA sequencing revealed significant quisinostat-driven changes in gene expression, including upregulation of neural and pro-inflammatory genes. To validate the observed potency of quisinostat in vivo against additional hypermutant DIPG models, we tested quisinostat in genetically-induced mismatch repair (MMR)-deficient DIPG flank tumors, demonstrating that loss of MMR function increases sensitivity to quisinostat in vivo. Here, we establish the preclinical efficacy of quisinostat against hypermutant DIPG, supporting further investigation of epigenetic targeting of hypermutant pediatric cancers with the potential for clinical translation. These findings support further investigation of HDAC inhibitors against pontine high-grade gliomas, beyond only those with histone mutations, as well as against other hypermutant central nervous system tumors.
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Affiliation(s)
- Alyssa Noll
- Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA, USA; Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, USA; Molecular and Cellular Biology Graduate Program and Medical Scientist Training Program, University of Washington, Seattle, WA, USA
| | - Carrie Myers
- Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA, USA; Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Matthew C Biery
- Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA, USA; Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Michael Meechan
- Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA, USA
| | - Sophie Tahiri
- Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA, USA; Molecular Mechanisms of Disease Graduate Program, University of Washington, Seattle, WA, USA
| | - Asmitha Rajendran
- Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA, USA; Biomedical Informatics and Medical Education Graduate Program, University of Washington, Seattle, WA, USA
| | - Michael E Berens
- Cancer & Cell Biology Division, Translational Genomics Research Institute (TGen), Phoenix, AZ, USA
| | - Danyelle Paine
- Cancer & Cell Biology Division, Translational Genomics Research Institute (TGen), Phoenix, AZ, USA
| | - Sara Byron
- Integrated Cancer Genomics Division, Translational Genomics Research Institute (TGen), Phoenix, AZ, USA
| | - Jiaming Zhang
- Integrated Cancer Genomics Division, Translational Genomics Research Institute (TGen), Phoenix, AZ, USA
| | - Conrad Winter
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Fiona Pakiam
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Sarah E S Leary
- Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA, USA; Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, USA; Department of Pediatrics, Seattle Children's Hospital, University of Washington, Seattle, WA, USA
| | - Bonnie L Cole
- Department of Laboratories, Seattle Children's Hospital, Seattle, WA, USA; Department of Laboratory Medicine and Pathology, University of Washington School of Medicine, Seattle, WA, USA
| | - Evangeline R Jackson
- Cancer Signalling Research Group, School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW, Australia; Precision Medicine Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Matthew D Dun
- Cancer Signalling Research Group, School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW, Australia; Precision Medicine Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia; Paediatric Program, Mark Hughes Foundation Centre for Brain Cancer Research, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW, Australia
| | - Jessica B Foster
- Division of Oncology, The Children's Hospital of Philadelphia, Philidelphia, PA, USA; Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Myron K Evans
- Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA, USA; Department of Pediatrics, Seattle Children's Hospital, University of Washington, Seattle, WA, USA
| | - Siobhan S Pattwell
- Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA, USA; Department of Pediatrics, Seattle Children's Hospital, University of Washington, Seattle, WA, USA
| | - James M Olson
- Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA, USA; Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, USA; Department of Pediatrics, Seattle Children's Hospital, University of Washington, Seattle, WA, USA
| | - Nicholas A Vitanza
- Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA, USA; Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, USA; Department of Pediatrics, Seattle Children's Hospital, University of Washington, Seattle, WA, USA; Department of Laboratory Medicine and Pathology, University of Washington School of Medicine, Seattle, WA, USA.
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