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Esteller M, Dawson MA, Kadoch C, Rassool FV, Jones PA, Baylin SB. The Epigenetic Hallmarks of Cancer. Cancer Discov 2024; 14:1783-1809. [PMID: 39363741 DOI: 10.1158/2159-8290.cd-24-0296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 05/08/2024] [Accepted: 06/24/2024] [Indexed: 10/05/2024]
Abstract
Cancer is a complex disease in which several molecular and cellular pathways converge to foster the tumoral phenotype. Notably, in the latest iteration of the cancer hallmarks, "nonmutational epigenetic reprogramming" was newly added. However, epigenetics, much like genetics, is a broad scientific area that deserves further attention due to its multiple roles in cancer initiation, progression, and adaptive nature. Herein, we present a detailed examination of the epigenetic hallmarks affected in human cancer, elucidating the pathways and genes involved, and dissecting the disrupted landscapes for DNA methylation, histone modifications, and chromatin architecture that define the disease. Significance: Cancer is a disease characterized by constant evolution, spanning from its initial premalignant stages to the advanced invasive and disseminated stages. It is a pathology that is able to adapt and survive amidst hostile cellular microenvironments and diverse treatments implemented by medical professionals. The more fixed setup of the genetic structure cannot fully provide transformed cells with the tools to survive but the rapid and plastic nature of epigenetic changes is ready for the task. This review summarizes the epigenetic hallmarks that define the ecological success of cancer cells in our bodies.
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Affiliation(s)
- Manel Esteller
- Cancer Epigenetics Group, Josep Carreras Leukaemia Research Institute (IJC), Barcelona, Spain
- Centro de Investigacion Biomedica en Red Cancer (CIBERONC), Madrid, Spain
- Institucio Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
- Physiological Sciences Department, School of Medicine and Health Sciences, University of Barcelona (UB), Barcelona, Spain
| | - Mark A Dawson
- Peter MacCallum Cancer Centre, Melbourne, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
- Centre for Cancer Research, University of Melbourne, Melbourne, Australia
| | - Cigall Kadoch
- Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts
- Howard Hughes Medical Institute, Chevy Chase, Maryland
| | - Feyruz V Rassool
- Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, Maryland
- Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Peter A Jones
- Department of Epigenetics, Van Andel Institute, Grand Rapids, Michigan
| | - Stephen B Baylin
- Department of Epigenetics, Van Andel Institute, Grand Rapids, Michigan
- Department of Oncology, The Johns Hopkins School of Medicine, The Sidney Kimmel Comprehensive Cancer Center, Baltimore, Maryland
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2
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Alcalá-Vida R, Barco A. Keep calm and carry H3K27me1 off. Neuron 2024; 112:2829-2832. [PMID: 39236677 DOI: 10.1016/j.neuron.2024.07.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2024] [Revised: 07/19/2024] [Accepted: 07/19/2024] [Indexed: 09/07/2024]
Abstract
In this issue of Neuron, Torres-Berrío et al.1 show that stress-susceptible mice exhibit elevated H3K27me1 levels in nucleus accumbens neurons due to the action of the SUZ12 VEFS domain, strengthening the link between specific epigenetic changes and long-lasting stress-induced social, emotional, and cognitive alterations.
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Affiliation(s)
- Rafael Alcalá-Vida
- Instituto de Neurociencias, Universidad Miguel Hernández - Consejo Superior de Investigaciones Científicas, Av. Santiago Ramón y Cajal s/n. Sant Joan d'Alacant, 03550 Alicante, Spain
| | - Angel Barco
- Instituto de Neurociencias, Universidad Miguel Hernández - Consejo Superior de Investigaciones Científicas, Av. Santiago Ramón y Cajal s/n. Sant Joan d'Alacant, 03550 Alicante, Spain.
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3
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Guo Y, Li Z, Parsels LA, Wang Z, Parsels JD, Dalvi A, The S, Hu N, Valvo VM, Doherty R, Peterson E, Wang X, Venkataraman S, Agnihotri S, Venneti S, Wahl DR, Green MD, Lawrence TS, Koschmann C, Morgan MA, Zhang Q. H3K27M diffuse midline glioma is homologous recombination defective and sensitized to radiotherapy and NK cell-mediated antitumor immunity by PARP inhibition. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.08.26.609803. [PMID: 39253432 PMCID: PMC11383052 DOI: 10.1101/2024.08.26.609803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/11/2024]
Abstract
Background Radiotherapy (RT) is the primary treatment for diffuse midline glioma (DMG), a lethal pediatric malignancy defined by histone H3 lysine 27-to-methionine (H3K27M) mutation. Based on the loss of H3K27 trimethylation producing broad epigenomic alterations, we hypothesized that H3K27M causes a functional double-strand break (DSB) repair defect that could be leveraged therapeutically with PARP inhibitor and RT for selective radiosensitization and antitumor immune responses. Methods H3K27M isogenic DMG cells and orthotopic brainstem DMG tumors in immune deficient and syngeneic, immune competent mice were used to evaluate the efficacy and mechanisms of PARP1/2 inhibition by olaparib or PARP1 inhibition by AZD9574 with concurrent RT. Results H3K27M mutation caused an HRR defect characterized by impaired RT-induced K63-linked polyubiquitination of histone H1 and inhibition of HRR protein recruitment. H3K27M DMG cells were selectively radiosensitized by olaparib in comparison to isogenic controls, and this effect translated to efficacy in H3K27M orthotopic brainstem tumors. Olaparib and RT induced an innate immune response and induction of NK cell (NKG2D) activating ligands leading to increased NK cell-mediated lysis of DMG tumor cells. In immunocompetent syngeneic orthotopic DMG tumors, either olaparib or AZD9574 in combination with RT enhanced intratumoral NK cell infiltration and activity in association with NK cell-mediated therapeutic responses and favorable activity of AZD9574. Conclusions The HRR deficiency in H3K27M DMG can be therapeutically leveraged with PARP inhibitors to radiosensitize and induce an NK cell-mediated antitumor immune response selectively in H3K27M DMG, supporting the clinical investigation of best-in-class PARP inhibitors with RT in DMG patients. Key points H3K27M DMG are HRR defective and selectively radiosensitized by PARP inhibitor.PARP inhibitor with RT enhances NKG2D ligand expression and NK cell-mediated lysis.NK cells are required for the therapeutic efficacy of PARP inhibitor and RT. Importance of the Study Radiotherapy is the cornerstone of H3K27M-mutant diffuse midline glioma treatment, but almost all patients succumb to tumor recurrence with poor overall survival, underscoring the need for RT-based precision combination therapy. Here, we reveal HRR deficiency as an H3K27M-mediated vulnerability and identify a novel mechanism linking impaired RT-induced histone H1 polyubiquitination and the subsequent RNF168/BRCA1/RAD51 recruitment in H3K27M DMG. This model is supported by selective radiosensitization of H3K27M DMG by PARP inhibitor. Notably, the combination treatment results in NKG2D ligand expression that confers susceptibility to NK cell killing in H3K27M DMG. We also show that the novel brain penetrant, PARP1-selective inhibitor AZD9574 compares favorably to olaparib when combined with RT, prolonging survival in a syngeneic orthotopic model of H3K27M DMG. This study highlights the ability of PARP1 inhibition to radiosensitize and induce an NK cell-mediated antitumor immunity in H3K27M DMG and supports future clinical investigation.
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Algranati D, Oren R, Dassa B, Fellus-Alyagor L, Plotnikov A, Barr H, Harmelin A, London N, Ron G, Furth N, Shema E. Dual targeting of histone deacetylases and MYC as potential treatment strategy for H3-K27M pediatric gliomas. eLife 2024; 13:RP96257. [PMID: 39093942 PMCID: PMC11296706 DOI: 10.7554/elife.96257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2024] Open
Abstract
Diffuse midline gliomas (DMGs) are aggressive and fatal pediatric tumors of the central nervous system that are highly resistant to treatments. Lysine to methionine substitution of residue 27 on histone H3 (H3-K27M) is a driver mutation in DMGs, reshaping the epigenetic landscape of these cells to promote tumorigenesis. H3-K27M gliomas are characterized by deregulation of histone acetylation and methylation pathways, as well as the oncogenic MYC pathway. In search of effective treatment, we examined the therapeutic potential of dual targeting of histone deacetylases (HDACs) and MYC in these tumors. Treatment of H3-K27M patient-derived cells with Sulfopin, an inhibitor shown to block MYC-driven tumors in vivo, in combination with the HDAC inhibitor Vorinostat, resulted in substantial decrease in cell viability. Moreover, transcriptome and epigenome profiling revealed synergistic effect of this drug combination in downregulation of prominent oncogenic pathways such as mTOR. Finally, in vivo studies of patient-derived orthotopic xenograft models showed significant tumor growth reduction in mice treated with the drug combination. These results highlight the combined treatment with PIN1 and HDAC inhibitors as a promising therapeutic approach for these aggressive tumors.
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Affiliation(s)
- Danielle Algranati
- Department of Immunology and Regenerative Biology, Weizmann Institute of ScienceRehovotIsrael
| | - Roni Oren
- Department of Veterinary Resources, Weizmann Institute of ScienceRehovotIsrael
| | - Bareket Dassa
- Bioinformatics Unit, Department of Life Sciences Core Facilities, Faculty of Biochemistry, Weizmann Institute of ScienceRehovotIsrael
| | - Liat Fellus-Alyagor
- Department of Veterinary Resources, Weizmann Institute of ScienceRehovotIsrael
| | - Alexander Plotnikov
- Wohl Institute for Drug Discovery of the Nancy and Stephen Grand Israel National Center for Personalized Medicine, Weizmann Institute of ScienceRehovotIsrael
| | - Haim Barr
- Wohl Institute for Drug Discovery of the Nancy and Stephen Grand Israel National Center for Personalized Medicine, Weizmann Institute of ScienceRehovotIsrael
| | - Alon Harmelin
- Department of Veterinary Resources, Weizmann Institute of ScienceRehovotIsrael
| | - Nir London
- Department of Chemical and Structural Biology, Weizmann Institute of ScienceRehovotIsrael
| | - Guy Ron
- Racah Institute of Physics, Hebrew UniversityJerusalemIsrael
| | - Noa Furth
- Department of Immunology and Regenerative Biology, Weizmann Institute of ScienceRehovotIsrael
| | - Efrat Shema
- Department of Immunology and Regenerative Biology, Weizmann Institute of ScienceRehovotIsrael
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5
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Romero P, Richart L, Aflaki S, Petitalot A, Burton M, Michaud A, Masliah-Planchon J, Kuhnowski F, Le Cam S, Baliñas-Gavira C, Méaudre C, Luscan A, Hamza A, Legoix P, Vincent-Salomon A, Wassef M, Holoch D, Margueron R. EZH2 mutations in follicular lymphoma distort H3K27me3 profiles and alter transcriptional responses to PRC2 inhibition. Nat Commun 2024; 15:3452. [PMID: 38658543 PMCID: PMC11043461 DOI: 10.1038/s41467-024-47701-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 04/08/2024] [Indexed: 04/26/2024] Open
Abstract
Mutations in chromatin regulators are widespread in cancer. Among them, the histone H3 lysine 27 methyltransferase Polycomb Repressive Complex 2 (PRC2) shows distinct alterations according to tumor type. This specificity is poorly understood. Here, we model several PRC2 alterations in one isogenic system to reveal their comparative effects. Focusing then on lymphoma-associated EZH2 mutations, we show that Ezh2Y641F induces aberrant H3K27 methylation patterns even without wild-type Ezh2, which are alleviated by partial PRC2 inhibition. Remarkably, Ezh2Y641F rewires the response to PRC2 inhibition, leading to induction of antigen presentation genes. Using a unique longitudinal follicular lymphoma cohort, we further link EZH2 status to abnormal H3K27 methylation. We also uncover unexpected variability in the mutational landscape of successive biopsies, pointing to frequent co-existence of different clones and cautioning against stratifying patients based on single sampling. Our results clarify how oncogenic PRC2 mutations disrupt chromatin and transcription, and the therapeutic vulnerabilities this creates.
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Affiliation(s)
- Pierre Romero
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
- Institut Curie, Department of Pathology, Paris Sciences et Lettres Research University, Paris, France
| | - Laia Richart
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Setareh Aflaki
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Ambre Petitalot
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Megan Burton
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Audrey Michaud
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Julien Masliah-Planchon
- Institut Curie, Pharmacogenetics Unit, Department of Genetics, Paris Sciences et Lettres Research University, Paris, France
| | - Frédérique Kuhnowski
- Institut Curie, Department of Clinical Hematology, Paris Sciences et Lettres Research University, Paris, France
| | - Samuel Le Cam
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Carlos Baliñas-Gavira
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Céline Méaudre
- Institut Curie, Department of Pathology, Paris Sciences et Lettres Research University, Paris, France
| | - Armelle Luscan
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Abderaouf Hamza
- Institut Curie, Pharmacogenetics Unit, Department of Genetics, Paris Sciences et Lettres Research University, Paris, France
| | - Patricia Legoix
- Institut Curie, Genomics of Excellence (ICGex) Platform, Paris Sciences et Lettres Research University, Paris, France
| | - Anne Vincent-Salomon
- Institut Curie, Department of Pathology, Paris Sciences et Lettres Research University, Paris, France
| | - Michel Wassef
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Daniel Holoch
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France.
| | - Raphaël Margueron
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France.
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6
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Sussman JH, Oldridge DA, Yu W, Chen CH, Zellmer AM, Rong J, Parvaresh-Rizi A, Thadi A, Xu J, Bandyopadhyay S, Sun Y, Wu D, Emerson Hunter C, Brosius S, Ahn KJ, Baxter AE, Koptyra MP, Vanguri RS, McGrory S, Resnick AC, Storm PB, Amankulor NM, Santi M, Viaene AN, Zhang N, Raedt TD, Cole K, Tan K. A longitudinal single-cell and spatial multiomic atlas of pediatric high-grade glioma. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.06.583588. [PMID: 38496580 PMCID: PMC10942465 DOI: 10.1101/2024.03.06.583588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Pediatric high-grade glioma (pHGG) is an incurable central nervous system malignancy that is a leading cause of pediatric cancer death. While pHGG shares many similarities to adult glioma, it is increasingly recognized as a molecularly distinct, yet highly heterogeneous disease. In this study, we longitudinally profiled a molecularly diverse cohort of 16 pHGG patients before and after standard therapy through single-nucleus RNA and ATAC sequencing, whole-genome sequencing, and CODEX spatial proteomics to capture the evolution of the tumor microenvironment during progression following treatment. We found that the canonical neoplastic cell phenotypes of adult glioblastoma are insufficient to capture the range of tumor cell states in a pediatric cohort and observed differential tumor-myeloid interactions between malignant cell states. We identified key transcriptional regulators of pHGG cell states and did not observe the marked proneural to mesenchymal shift characteristic of adult glioblastoma. We showed that essential neuromodulators and the interferon response are upregulated post-therapy along with an increase in non-neoplastic oligodendrocytes. Through in vitro pharmacological perturbation, we demonstrated novel malignant cell-intrinsic targets. This multiomic atlas of longitudinal pHGG captures the key features of therapy response that support distinction from its adult counterpart and suggests therapeutic strategies which are targeted to pediatric gliomas.
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Affiliation(s)
- Jonathan H. Sussman
- Medical Scientist Training Program, Perelman School of Medicine,
University of Pennsylvania, Philadelphia, PA
- Graduate Group in Genomics and Computational Biology, Perelman
School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Derek A. Oldridge
- Department of Pathology and Laboratory Medicine, Perelman School
of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Wenbao Yu
- Center for Childhood Cancer Research, Children’s Hospital
of Philadelphia, Philadelphia, PA
- Department of Pediatrics, University of Pennsylvania Perelman
School of Medicine, Philadelphia, PA
| | - Chia-Hui Chen
- Center for Childhood Cancer Research, Children’s Hospital
of Philadelphia, Philadelphia, PA
| | - Abigail M. Zellmer
- Department of Pathology and Laboratory Medicine, Perelman School
of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Jiazhen Rong
- Graduate Group in Genomics and Computational Biology, Perelman
School of Medicine, University of Pennsylvania, Philadelphia, PA
- Department of Statistics and Data Science, University of
Pennsylvania, Philadelphia, PA
| | | | - Anusha Thadi
- Center for Childhood Cancer Research, Children’s Hospital
of Philadelphia, Philadelphia, PA
| | - Jason Xu
- Medical Scientist Training Program, Perelman School of Medicine,
University of Pennsylvania, Philadelphia, PA
- Graduate Group in Genomics and Computational Biology, Perelman
School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Shovik Bandyopadhyay
- Medical Scientist Training Program, Perelman School of Medicine,
University of Pennsylvania, Philadelphia, PA
- Cellular and Molecular Biology Graduate Group, Perelman School of
Medicine, University of Pennsylvania, PA
| | - Yusha Sun
- Medical Scientist Training Program, Perelman School of Medicine,
University of Pennsylvania, Philadelphia, PA
- Neuroscience Graduate Group, Perelman School of Medicine,
University of Pennsylvania, PA
| | - David Wu
- Medical Scientist Training Program, Perelman School of Medicine,
University of Pennsylvania, Philadelphia, PA
- Graduate Group in Genomics and Computational Biology, Perelman
School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - C. Emerson Hunter
- Medical Scientist Training Program, Perelman School of Medicine,
University of Pennsylvania, Philadelphia, PA
- Graduate Group in Genomics and Computational Biology, Perelman
School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Stephanie Brosius
- Graduate Group in Genomics and Computational Biology, Perelman
School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Kyung Jin Ahn
- Center for Childhood Cancer Research, Children’s Hospital
of Philadelphia, Philadelphia, PA
| | - Amy E. Baxter
- Department of Pathology and Laboratory Medicine, Perelman School
of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Mateusz P. Koptyra
- Department of Neurosurgery, Children’s Hospital of
Philadelphia, Philadelphia, PA
| | - Rami S. Vanguri
- Department of Pathology and Laboratory Medicine, Perelman School
of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Stephanie McGrory
- Center for Childhood Cancer Research, Children’s Hospital
of Philadelphia, Philadelphia, PA
| | - Adam C. Resnick
- Department of Neurosurgery, Children’s Hospital of
Philadelphia, Philadelphia, PA
| | - Phillip B. Storm
- Department of Neurosurgery, Children’s Hospital of
Philadelphia, Philadelphia, PA
| | - Nduka M. Amankulor
- Department of Neurosurgery, Perelman School of Medicine,
Philadelphia, PA
| | - Mariarita Santi
- Department of Pathology and Laboratory Medicine, Perelman School
of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Angela N. Viaene
- Department of Pathology and Laboratory Medicine, Perelman School
of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Nancy Zhang
- Department of Statistics and Data Science, University of
Pennsylvania, Philadelphia, PA
| | - Thomas De Raedt
- Department of Pathology and Laboratory Medicine, Perelman School
of Medicine at the University of Pennsylvania, Philadelphia, PA
- Center for Childhood Cancer Research, Children’s Hospital
of Philadelphia, Philadelphia, PA
| | - Kristina Cole
- Center for Childhood Cancer Research, Children’s Hospital
of Philadelphia, Philadelphia, PA
- Department of Pediatrics, University of Pennsylvania Perelman
School of Medicine, Philadelphia, PA
| | - Kai Tan
- Center for Childhood Cancer Research, Children’s Hospital
of Philadelphia, Philadelphia, PA
- Department of Pediatrics, University of Pennsylvania Perelman
School of Medicine, Philadelphia, PA
- Center for Single Cell Biology, Children’s Hospital of
Philadelphia, Philadelphia, PA
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7
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Erez N, Furth N, Fedyuk V, Wadden J, Aittaleb R, Schwark K, Niculcea M, Miclea M, Mody R, Franson A, Eze A, Nourmohammadi N, Nazarian J, Venneti S, Koschmann C, Shema E. Single-molecule systems for detection and monitoring of plasma circulating nucleosomes and oncoproteins in Diffuse Midline Glioma. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.21.568019. [PMID: 38045418 PMCID: PMC10690213 DOI: 10.1101/2023.11.21.568019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
The analysis of cell-free tumor DNA (ctDNA) and proteins in the blood of cancer patients potentiates a new generation of non-invasive diagnostics and treatment monitoring approaches. However, confident detection of these tumor-originating markers is challenging, especially in the context of brain tumors, in which extremely low amounts of these analytes circulate in the patient's plasma. Here, we applied a sensitive single-molecule technology to profile multiple histone modifications on millions of individual nucleosomes from the plasma of Diffuse Midline Glioma (DMG) patients. The system reveals epigenetic patterns that are unique to DMG, significantly differentiating this group of patients from healthy subjects or individuals diagnosed with other cancer types. We further develop a method to directly capture and quantify the tumor-originating oncoproteins, H3-K27M and mutant p53, from the plasma of children diagnosed with DMG. This single-molecule system allows for accurate molecular classification of patients, utilizing less than 1ml of liquid-biopsy material. Furthermore, we show that our simple and rapid detection strategy correlates with MRI measurements and droplet-digital PCR (ddPCR) measurements of ctDNA, highlighting the utility of this approach for non-invasive treatment monitoring of DMG patients. This work underscores the clinical potential of single-molecule-based, multi-parametric assays for DMG diagnosis and treatment monitoring.
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8
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Da-Veiga MA, Coppieters N, Lombard A, Rogister B, Neirinckx V, Piette C. Comprehensive profiling of stem-like features in pediatric glioma cell cultures and their relation to the subventricular zone. Acta Neuropathol Commun 2023; 11:96. [PMID: 37328883 PMCID: PMC10276389 DOI: 10.1186/s40478-023-01586-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 05/20/2023] [Indexed: 06/18/2023] Open
Abstract
Pediatric high-grade gliomas (pHGG) are brain tumors occurring in children and adolescents associated with a dismal prognosis despite existing treatments. Therapeutic failure in both adult and pHGG has been partially imputed to glioma stem cells (GSC), a subset of cancer cells endowed with stem-like cell potential and malignant, invasive, adaptative, and treatment-resistant capabilities. Whereas GSC have largely been portrayed in adult tumors, less information has been provided in pHGG. The aim of our study was to comprehensively document the stem-like capacities of seven in-use pediatric glioma cell cultures (Res259, UW479, SF188, KNS42, SF8628, HJSD-DIPG-007 and HJSD-DIPG-012) using parallel in vitro assays assessing stem cell-related protein expression, multipotency, self-renewal and proliferation/quiescence, and in vivo investigation of their tumorigenicity and invasiveness. Data obtained from in vitro experiments revealed glioma subtype-dependent expression of stem cell-related markers and varying abilities for differentiation, self-renewal, and proliferation/quiescence. Among tested cultures, DMG H3-K27 altered cultures displayed a particular pattern of stem-like markers expression and a higher fraction of cells with self-renewal potential. Four cultures displaying distinctive stem-like profiles were further tested for their ability to initiate tumors and invade the brain tissue in mouse orthotopic xenografts. The selected cell cultures all showed a great tumor formation capacity, but only DMG H3-K27 altered cells demonstrated a highly infiltrative phenotype. Interestingly, we detected DMG H3-K27 altered cells relocated in the subventricular zone (SVZ), which has been previously described as a neurogenic area, but also a potential niche for brain tumor cells. Finally, we observed an SVZ-induced phenotypic modulation of the glioma cells, as evidenced by their increased proliferation rate. In conclusion, this study recapitulated a systematic stem-like profiling of various pediatric glioma cell cultures and call to a deeper characterization of DMG H3-K27 altered cells nested in the SVZ.
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Affiliation(s)
- Marc-Antoine Da-Veiga
- Laboratory of Nervous System Diseases and Therapy, GIGA Neuroscience, GIGA Institute, University of Liège, Liège, Belgium
| | - Natacha Coppieters
- Laboratory of Nervous System Diseases and Therapy, GIGA Neuroscience, GIGA Institute, University of Liège, Liège, Belgium
| | - Arnaud Lombard
- Laboratory of Nervous System Diseases and Therapy, GIGA Neuroscience, GIGA Institute, University of Liège, Liège, Belgium
- Department of Neurosurgery, CHU Liège, Liège, Belgium
| | - Bernard Rogister
- Laboratory of Nervous System Diseases and Therapy, GIGA Neuroscience, GIGA Institute, University of Liège, Liège, Belgium
- Department of Neurology, CHU Liège, Liège, Belgium
| | - Virginie Neirinckx
- Laboratory of Nervous System Diseases and Therapy, GIGA Neuroscience, GIGA Institute, University of Liège, Liège, Belgium
| | - Caroline Piette
- Laboratory of Nervous System Diseases and Therapy, GIGA Neuroscience, GIGA Institute, University of Liège, Liège, Belgium
- Department of Pediatrics, Division of Hematology-Oncology, CHU Liège, Liège, Belgium
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9
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Park J, Chung C. Epigenetic and Metabolic Changes in Diffuse Intrinsic Pontine Glioma. Brain Tumor Res Treat 2023; 11:86-93. [PMID: 37151150 PMCID: PMC10172016 DOI: 10.14791/btrt.2023.0011] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/07/2023] [Accepted: 04/13/2023] [Indexed: 05/09/2023] Open
Abstract
Diffuse midline glioma (DMG), hitherto known as diffuse intrinsic pontine glioma (DIPG), is a rare and aggressive form of brain cancer that primarily affects children. Although the exact cause of DMG/DIPG is not known, a large proportion of DMG/DIPG tumors harbor mutations in the gene encoding the histone H3 protein, specifically the H3K27M mutation. This mutation decreases the level of H3K27me3, a histone modification that plays a vital role in regulating gene expression through epigenetic regulation. The mutation also alters the function of polycomb repressive complex 2 (PRC2), thereby preventing the repression of genes associated with cancer development. The decrease in H3K27me3 caused by the histone H3 mutation is accompanied by an increase in the level of H3K27ac, a post-translational modification related to active transcription. Dysregulation of histone modification markedly affects gene expression, contributing to cancer development and progression by promoting uncontrolled cell proliferation, tumor growth, and metabolism. DMG/DIPG alters the metabolism of methionine and the tricarboxylic acid cycle, as well as glucose and glutamine uptake. The role of epigenetic and metabolic changes in the development of DMG/DIPG has been studied extensively, and understanding these changes is critical to developing therapies targeting these pathways. Studies are currently underway to identify new therapeutic targets for DMG/DIPG, which may lead to the development of effective treatments for this devastating disease.
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Affiliation(s)
- Jiyoon Park
- Department of New Biology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Korea
- New Biology Research Center (NBRC), Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Korea
| | - Chan Chung
- Department of New Biology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Korea
- New Biology Research Center (NBRC), Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Korea.
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10
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Parsels LA, Wahl DR, Koschmann C, Morgan MA, Zhang Q. Developing H3K27M mutant selective radiosensitization strategies in diffuse intrinsic pontine glioma. Neoplasia 2023; 37:100881. [PMID: 36724689 PMCID: PMC9918797 DOI: 10.1016/j.neo.2023.100881] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 01/13/2023] [Accepted: 01/23/2023] [Indexed: 01/31/2023]
Abstract
Diffuse intrinsic pontine glioma (DIPG) is a rare but highly lethal pediatric and adolescent tumor located in the pons of the brainstem. DIPGs harbor unique and specific pathological and molecular alterations, such as the hallmark lysine 27-to-methionine (H3K27M) mutation in histone H3, which lead to global changes in the epigenetic landscape and drive tumorigenesis. While fractionated radiotherapy, the current standard of care, improves symptoms and delays tumor progression, DIPGs inevitably recur, and despite extensive efforts chemotherapy-driven radiosensitization strategies have failed to improve survival. Advances in our understanding of the role of epigenetics in the cellular response to radiation-induced DNA damage, however, offer new opportunities to develop combinational therapeutic strategies selective for DIPGs expressing H3K27M. In this review, we provide an overview of preclinical studies that explore potential radiosensitization strategies targeting the unique epigenetic landscape of H3K27M mutant DIPG. We further discuss opportunities to selectively radiosensitize DIPG through strategic inhibition of the radiation-induced DNA damage response. Finally, we discuss the potential for using radiation to induce anti-tumor immune responses that may be potentiated in DIPG by radiosensitizing-therapeutic strategies.
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Affiliation(s)
- Leslie A Parsels
- Department of Radiation Oncology, Rogel Cancer Center, University of Michigan Medical School, 1301 Catherine Street, Ann Arbor, MI, 48109, USA
| | - Daniel R Wahl
- Department of Radiation Oncology, Rogel Cancer Center, University of Michigan Medical School, 1301 Catherine Street, Ann Arbor, MI, 48109, USA
| | - Carl Koschmann
- Department of Pediatrics, Division of Pediatric Hematology-Oncology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Meredith A Morgan
- Department of Radiation Oncology, Rogel Cancer Center, University of Michigan Medical School, 1301 Catherine Street, Ann Arbor, MI, 48109, USA.
| | - Qiang Zhang
- Department of Radiation Oncology, Rogel Cancer Center, University of Michigan Medical School, 1301 Catherine Street, Ann Arbor, MI, 48109, USA.
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11
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Cohen LRZ, Kaffe B, Deri E, Leibson C, Nissim-Rafinia M, Maman M, Harpaz N, Ron G, Shema E, Meshorer E. PRC2-independent actions of H3.3K27M in embryonic stem cell differentiation. Nucleic Acids Res 2023; 51:1662-1673. [PMID: 36156096 PMCID: PMC9976889 DOI: 10.1093/nar/gkac800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 08/28/2022] [Accepted: 09/06/2022] [Indexed: 01/11/2023] Open
Abstract
The histone H3 variant, H3.3, is localized at specific regions in the genome, especially promoters and active enhancers, and has been shown to play important roles in development. A lysine to methionine substitution in position 27 (H3.3K27M) is a main cause of Diffuse Intrinsic Pontine Glioma (specifically Diffuse Midline Glioma, K27M-mutant), a lethal type of pediatric cancer. H3.3K27M has a dominant-negative effect by inhibiting the Polycomb Repressor Complex 2 (PRC2) activity. Here, we studied the immediate, genome-wide, consequences of the H3.3K27M mutation independent of PRC2 activity. We developed Doxycycline (Dox)-inducible mouse embryonic stem cells (ESCs) carrying a single extra copy of WT-H3.3, H3.3K27M and H3.3K27L, all fused to HA. We performed RNA-Seq and ChIP-Seq at different times following Dox induction in undifferentiated and differentiated ESCs. We find increased binding of H3.3 around transcription start sites in cells expressing both H3.3K27M and H3.3K27L compared with WT, but not in cells treated with PRC2 inhibitors. Differentiated cells carrying either H3.3K27M or H3.3K27L retain expression of ESC-active genes, in expense of expression of genes related to neuronal differentiation. Taken together, our data suggest that a modifiable H3.3K27 is required for proper histone incorporation and cellular maturation, independent of PRC2 activity.
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Affiliation(s)
- Lea R Z Cohen
- Department of Genetics, The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel.,The Edmond and Lily Safra Center for Brain Sciences (ELSC), The Hebrew University of Jerusalem, Jerusalem 9190401, Israel
| | - Binyamin Kaffe
- Department of Genetics, The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel
| | - Eden Deri
- Department of Genetics, The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel.,The Edmond and Lily Safra Center for Brain Sciences (ELSC), The Hebrew University of Jerusalem, Jerusalem 9190401, Israel
| | - Chen Leibson
- Department of Genetics, The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel
| | - Malka Nissim-Rafinia
- Department of Genetics, The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel
| | - Moria Maman
- Department of Genetics, The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel
| | - Nofar Harpaz
- Department of Immunology and Regenerative Biology, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Guy Ron
- The Racah Institute of Physics, The Center for Nanoscience and Nanotechnology, The Hebrew University, Jerusalem 9190401, Israel
| | - Efrat Shema
- Department of Immunology and Regenerative Biology, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Eran Meshorer
- Department of Genetics, The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel.,The Edmond and Lily Safra Center for Brain Sciences (ELSC), The Hebrew University of Jerusalem, Jerusalem 9190401, Israel
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12
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Tripathy A, John V, Wadden J, Kong S, Sharba S, Koschmann C. Liquid biopsy in pediatric brain tumors. Front Genet 2023; 13:1114762. [PMID: 36685825 PMCID: PMC9853427 DOI: 10.3389/fgene.2022.1114762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 12/23/2022] [Indexed: 01/09/2023] Open
Abstract
Malignant primary brain tumors are the most common cancer in children aged 0-14 years, and are the most common cause of death among pediatric cancer patients. Compared to other cancers, pediatric brain tumors have been difficult to diagnose and study given the high risk of intracranial biopsy penetrating through vital midline structures, where the majority of pediatric brain tumors originate (Ostrom et al., 2015). Furthermore, the vast majority of these tumors recur. With limitations in the ability to monitor using clinical and radiographic methods alone, minimally invasive methods such as liquid biopsy will be crucial to our understanding and treatment. Liquid biopsy of blood, urine, and cerebrospinal fluid (CSF) can be used to sample cfDNA, ctDNA, RNA, extracellular vesicles, and tumor-associated proteins. In the past year, four seminal papers have made significant advances in the use of liquid biopsy in pediatric brain tumor patients (Liu et al., 2021; Cantor et al., 2022; Miller et al., 2022; Pagès et al., 2022). In this review, we integrate the results of these studies and others to discuss how the newest technologies in liquid biopsy are being developed for molecular diagnosis and treatment response in pediatric brain tumors.
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Affiliation(s)
- Arushi Tripathy
- Department of Neurosurgery, Michigan Medicine, Ann Arbor, MI, United States
| | - Vishal John
- Department of Pediatrics, Michigan Medicine, Ann Arbor, MI, United States
| | - Jack Wadden
- Department of Pediatrics, Michigan Medicine, Ann Arbor, MI, United States
| | - Seongbae Kong
- Department of Pediatrics, Michigan Medicine, Ann Arbor, MI, United States
| | - Sana Sharba
- Department of Pediatrics, Michigan Medicine, Ann Arbor, MI, United States
| | - Carl Koschmann
- Department of Pediatrics, Michigan Medicine, Ann Arbor, MI, United States
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13
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Sussman JH, Xu J, Amankulor N, Tan K. Dissecting the tumor microenvironment of epigenetically driven gliomas: Opportunities for single-cell and spatial multiomics. Neurooncol Adv 2023; 5:vdad101. [PMID: 37706202 PMCID: PMC10496944 DOI: 10.1093/noajnl/vdad101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2023] Open
Abstract
Malignant gliomas are incurable brain neoplasms with dismal prognoses and near-universal fatality, with minimal therapeutic progress despite billions of dollars invested in research and clinical trials over the last 2 decades. Many glioma studies have utilized disparate histologic and genomic platforms to characterize the stunning genomic, transcriptomic, and immunologic heterogeneity found in gliomas. Single-cell and spatial omics technologies enable unprecedented characterization of heterogeneity in solid malignancies and provide a granular annotation of transcriptional, epigenetic, and microenvironmental states with limited resected tissue. Heterogeneity in gliomas may be defined, at the broadest levels, by tumors ostensibly driven by epigenetic alterations (IDH- and histone-mutant) versus non-epigenetic tumors (IDH-wild type). Epigenetically driven tumors are defined by remarkable transcriptional programs, immunologically distinct microenvironments, and incompletely understood topography (unique cellular neighborhoods and cell-cell interactions). Thus, these tumors are the ideal substrate for single-cell multiomic technologies to disentangle the complex intra-tumoral features, including differentiation trajectories, tumor-immune cell interactions, and chromatin dysregulation. The current review summarizes the applications of single-cell multiomics to existing datasets of epigenetically driven glioma. More importantly, we discuss future capabilities and applications of novel multiomic strategies to answer outstanding questions, enable the development of potent therapeutic strategies, and improve personalized diagnostics and treatment via digital pathology.
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Affiliation(s)
- Jonathan H Sussman
- Graduate Group in Genomics and Computational Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Medical Scientist Training Program, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Jason Xu
- Graduate Group in Genomics and Computational Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Medical Scientist Training Program, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Nduka Amankulor
- Department of Neurosurgery, Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Kai Tan
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Center for Childhood Cancer Research, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
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14
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Petrilli LL, Fuoco C, Palma A, Pasquini L, Pericoli G, Grabovska Y, Mackay A, Rossi S, Carcaboso AM, Carai A, Mastronuzzi A, Jones C, Cesareni G, Locatelli F, Vinci M. Inter and intra-tumor heterogeneity of paediatric type diffuse high-grade gliomas revealed by single-cell mass cytometry. Front Oncol 2022; 12:1016343. [PMID: 36568177 PMCID: PMC9773089 DOI: 10.3389/fonc.2022.1016343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 11/16/2022] [Indexed: 12/13/2022] Open
Abstract
Paediatric-type diffuse high-grade gliomas (PDHGG) are aggressive tumors affecting children and young adults, with no effective treatment. These highly heterogeneous malignancies arise in different sites of the Central Nervous System (CNS), carrying distinctive molecular alterations and clinical outcomes (inter-tumor heterogeneity). Moreover, deep cellular and molecular profiling studies highlighted the coexistence of genetically and phenotypically different subpopulations within the same tumor mass (intra-tumor heterogeneity). Despite the recent advances made in the field, the marked heterogeneity of PDHGGs still impedes the development of effective targeted therapies and the identification of suitable biomarkers. In order to fill the existing gap, we used mass cytometry to dissect PDHGG inter- and intra-heterogeneity. This is one of the most advanced technologies of the "-omics" era that, using antibodies conjugated to heavy metals, allows the simultaneous measurement of more than 40 markers at single-cell level. To this end, we analyzed eight PDHGG patient-derived cell lines from different locational and molecular subgroups. By using a panel of 15 antibodies, directly conjugated to metals or specifically customized to detect important histone variants, significant differences were highlighted in the expression of the considered antigens. The single-cell multiparametric approach realized has deepened our understanding of PDHGG, confirming a high degree of intra- and inter-tumoral heterogeneity and identifying some antigens that could represent useful biomarkers for the specific PDHGG locational or molecular subgroups.
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Affiliation(s)
- Lucia Lisa Petrilli
- Department of Onco-hematology, Gene and Cell Therapy, Bambino Gesù Children’s Hospital– IRCCS, Rome, Italy
| | - Claudia Fuoco
- Department of Biology, University of Rome “Tor Vergata”, Rome, Italy
| | - Alessandro Palma
- Department of Onco-hematology, Gene and Cell Therapy, Bambino Gesù Children’s Hospital– IRCCS, Rome, Italy
| | - Luca Pasquini
- Core Facilities, Istituto Superiore di Sanità, Rome, Italy
| | - Giulia Pericoli
- Department of Onco-hematology, Gene and Cell Therapy, Bambino Gesù Children’s Hospital– IRCCS, Rome, Italy
| | - Yura Grabovska
- Division of Molecular Pathology, Institute of Cancer Research, Sutton, United Kingdom
| | - Alan Mackay
- Division of Molecular Pathology, Institute of Cancer Research, Sutton, United Kingdom
| | - Sabrina Rossi
- Department of Laboratories-Pathology Unit, Bambino Gesù Children’s Hospital-IRCCS, Rome, Italy
| | - Angel M. Carcaboso
- Pediatric Hematology and Oncology, Hospital Sant Joan de Deu, Institut de Recerca Sant Joan de Deu, Barcelona, Spain
| | - Andrea Carai
- Department of Neuroscience and Neurorehabilitation, Bambino Gesù Children’s Hospital -IRCCS, Rome, Italy
| | - Angela Mastronuzzi
- Neuro-oncology Unit, Department of Onco-haematology, Gene and Cell Therapy, Bambino Gesù Children’s Hospital-IRCCS, Rome, Italy
| | - Chris Jones
- Division of Molecular Pathology, Institute of Cancer Research, Sutton, United Kingdom
| | - Gianni Cesareni
- Department of Biology, University of Rome “Tor Vergata”, Rome, Italy
| | - Franco Locatelli
- Department of Onco-hematology, Gene and Cell Therapy, Bambino Gesù Children’s Hospital– IRCCS, Rome, Italy
| | - Maria Vinci
- Department of Onco-hematology, Gene and Cell Therapy, Bambino Gesù Children’s Hospital– IRCCS, Rome, Italy
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15
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Daura E, Tegelberg S, Hakala P, Lehesjoki AE, Joensuu T. Cystatin B deficiency results in sustained histone H3 tail cleavage in postnatal mouse brain mediated by increased chromatin-associated cathepsin L activity. Front Mol Neurosci 2022; 15:1069122. [DOI: 10.3389/fnmol.2022.1069122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 11/14/2022] [Indexed: 12/05/2022] Open
Abstract
Cystatin B (CSTB) is a cysteine cathepsin inhibitor whose biallelic loss-of-function mutations in human result in defects in brain development and in neurodegeneration. The physiological function of CSTB is largely unknown, and the mechanisms underlying the human brain diseases remain poorly understood. We previously showed that CSTB modulates the proteolysis of the N-terminal tail of histone H3 (H3cs1) during in vitro neurogenesis. Here we investigated the significance of this mechanism in postnatal mouse brain. Spatiotemporal analysis of H3cs1 intensity showed that while H3cs1 in wild-type (wt) mice was found at varying levels during the first postnatal month, it was virtually absent in adult brain. We further showed that the high level of H3cs1 coincides with chromatin association of de novo synthesized cathepsin L suggesting a role for nuclear cathepsin L in brain development and maturation. On the contrary, the brains of Cstb–/– mice showed sustained H3cs1 proteolysis to adulthood with increased chromatin-associated cathepsin L activity, implying that CSTB regulates chromatin-associated cathepsin L activity in the postnatal mouse brain. As H3 tail proteolysis has been linked to cellular senescence in vitro, we explored the presence of several cellular senescence markers in the maturing Cstb–/– cerebellum, where we see increased levels of H3cs1. While several markers showed alterations in Cstb–/– mice, the results remained inconclusive regarding the association of deficient CSTB function with H3cs1-induced senescence. Together, we identify a molecular role for CSTB in brain with implications for brain development and disease.
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16
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Aylon Y, Furth N, Mallel G, Friedlander G, Nataraj NB, Dong M, Hassin O, Zoabi R, Cohen B, Drendel V, Salame TM, Mukherjee S, Harpaz N, Johnson R, Aulitzky WE, Yarden Y, Shema E, Oren M. Breast cancer plasticity is restricted by a LATS1-NCOR1 repressive axis. Nat Commun 2022; 13:7199. [PMID: 36443319 PMCID: PMC9705295 DOI: 10.1038/s41467-022-34863-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 11/10/2022] [Indexed: 11/29/2022] Open
Abstract
Breast cancer, the most frequent cancer in women, is generally classified into several distinct histological and molecular subtypes. However, single-cell technologies have revealed remarkable cellular and functional heterogeneity across subtypes and even within individual breast tumors. Much of this heterogeneity is attributable to dynamic alterations in the epigenetic landscape of the cancer cells, which promote phenotypic plasticity. Such plasticity, including transition from luminal to basal-like cell identity, can promote disease aggressiveness. We now report that the tumor suppressor LATS1, whose expression is often downregulated in human breast cancer, helps maintain luminal breast cancer cell identity by reducing the chromatin accessibility of genes that are characteristic of a "basal-like" state, preventing their spurious activation. This is achieved via interaction of LATS1 with the NCOR1 nuclear corepressor and recruitment of HDAC1, driving histone H3K27 deacetylation near NCOR1-repressed "basal-like" genes. Consequently, decreased expression of LATS1 elevates the expression of such genes and facilitates slippage towards a more basal-like phenotypic identity. We propose that by enforcing rigorous silencing of repressed genes, the LATS1-NCOR1 axis maintains luminal cell identity and restricts breast cancer progression.
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Affiliation(s)
- Yael Aylon
- grid.13992.300000 0004 0604 7563Department of Molecular Cell Biology, The Weizmann Institute of Science, 76100 Rehovot, Israel
| | - Noa Furth
- grid.13992.300000 0004 0604 7563Department of Immunology and Regenerative Biology, The Weizmann Institute of Science, 76100 Rehovot, Israel
| | - Giuseppe Mallel
- grid.13992.300000 0004 0604 7563Department of Molecular Cell Biology, The Weizmann Institute of Science, 76100 Rehovot, Israel
| | - Gilgi Friedlander
- grid.13992.300000 0004 0604 7563Department of Life Sciences Core Facilities, The Nancy & Stephen Grand Israel National Center for Personalized Medicine (G-INCPM), The Weizmann Institute of Science, 76100 Rehovot, Israel
| | - Nishanth Belugali Nataraj
- grid.13992.300000 0004 0604 7563Department of Immunology and Regenerative Biology, The Weizmann Institute of Science, 76100 Rehovot, Israel
| | - Meng Dong
- grid.502798.10000 0004 0561 903XDr. Margarete Fischer-Bosch-Institute of Clinical Pharmacology and University of Tuebingen, Stuttgart, Germany
| | - Ori Hassin
- grid.13992.300000 0004 0604 7563Department of Molecular Cell Biology, The Weizmann Institute of Science, 76100 Rehovot, Israel
| | - Rawan Zoabi
- grid.13992.300000 0004 0604 7563Department of Molecular Cell Biology, The Weizmann Institute of Science, 76100 Rehovot, Israel
| | - Benjamin Cohen
- grid.13992.300000 0004 0604 7563Department of Immunology, The Weizmann Institute of Science, 76100 Rehovot, Israel
| | - Vanessa Drendel
- grid.416008.b0000 0004 0603 4965Department of Pathology, Robert Bosch Hospital, Stuttgart, Germany
| | - Tomer Meir Salame
- grid.13992.300000 0004 0604 7563Flow Cytometry Unit, Department of Life Sciences Core Facilities, The Weizmann Institute of Science, 76100 Rehovot, Israel
| | - Saptaparna Mukherjee
- grid.13992.300000 0004 0604 7563Department of Molecular Cell Biology, The Weizmann Institute of Science, 76100 Rehovot, Israel
| | - Nofar Harpaz
- grid.13992.300000 0004 0604 7563Department of Immunology and Regenerative Biology, The Weizmann Institute of Science, 76100 Rehovot, Israel
| | - Randy Johnson
- grid.240145.60000 0001 2291 4776Department of Cancer Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77030 USA
| | - Walter E. Aulitzky
- grid.416008.b0000 0004 0603 4965Department of Hematology, Oncology and Palliative Medicine, Robert Bosch Hospital, Stuttgart, Germany
| | - Yosef Yarden
- grid.13992.300000 0004 0604 7563Department of Immunology and Regenerative Biology, The Weizmann Institute of Science, 76100 Rehovot, Israel
| | - Efrat Shema
- grid.13992.300000 0004 0604 7563Department of Immunology and Regenerative Biology, The Weizmann Institute of Science, 76100 Rehovot, Israel
| | - Moshe Oren
- grid.13992.300000 0004 0604 7563Department of Molecular Cell Biology, The Weizmann Institute of Science, 76100 Rehovot, Israel
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