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Yousefi Y, Nejati R, Eslahi A, Alizadeh F, Farrokhi S, Asoodeh A, Mojarrad M. Enhancing Temozolomide (TMZ) chemosensitivity using CRISPR-dCas9-mediated downregulation of O 6-methylguanine DNA methyltransferase (MGMT). J Neurooncol 2024; 169:129-135. [PMID: 38762829 DOI: 10.1007/s11060-024-04708-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Accepted: 05/02/2024] [Indexed: 05/20/2024]
Abstract
PURPOSE Glioblastoma (GBM) stands out as the most prevalent and aggressive intracranial tumor, notorious for its poor prognosis. The current standard-of-care for GBM patients involves surgical resection followed by radiotherapy, combined with concurrent and adjuvant chemotherapy using Temozolomide (TMZ). The effectiveness of TMZ primarily relies on the activity of O6-methylguanine DNA methyltransferase (MGMT), which removes alkyl adducts from the O6 position of guanine at the DNA level, thereby counteracting the toxic effects of TMZ. METHOD In this study, we employed fusions of catalytically-inactive Cas9 (dCas9) to DNA methyltransferases (dCas9-DNMT3A) to selectively downregulation MGMT transcription by inducing methylation at MGMT promoter and K-M enhancer. RESULT Our findings demonstrate a significant reduction in MGMT expression, leading to intensified TMZ sensitivity in the HEK293T cell line. CONCLUSION This study serves as a proof of concept for the utilization of CRISPR-based gene suppression to overcome TMZ resistance and enhance the lethal effect of TMZ in glioblastoma tumor cells.
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Affiliation(s)
- Yasamin Yousefi
- Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Reza Nejati
- Department of Pathology, Fox Chase Cancer Center, Temple University Health System, 19111, Philadelphia, PA, USA
| | - Atiye Eslahi
- Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Farzaneh Alizadeh
- Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Shima Farrokhi
- Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ahmad Asoodeh
- Department of chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.
| | - Majid Mojarrad
- Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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2
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Xu J, Lou X, Wang F, Zhang W, Xu X, Ye Z, Zhuo Q, Wang Y, Jing D, Fan G, Chen X, Zhang Y, Zhou C, Chen J, Qin Y, Yu X, Ji S. MEN1 Deficiency-Driven Activation of the β-Catenin-MGMT Axis Promotes Pancreatic Neuroendocrine Tumor Growth and Confers Temozolomide Resistance. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2308417. [PMID: 39041891 DOI: 10.1002/advs.202308417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 07/12/2024] [Indexed: 07/24/2024]
Abstract
O6-methylguanine DNA methyltransferase (MGMT) removes alkyl adducts from the guanine O6 position (O6-MG) and repairs DNA damage. High MGMT expression results in poor response to temozolomide (TMZ). However, the biological importance of MGMT and the mechanism underlying its high expression in pancreatic neuroendocrine tumors (PanNETs) remain elusive. Here, it is found that MGMT expression is highly elevated in PanNET tissues compared with paired normal tissues and negatively associated with progression-free survival (PFS) time in patients with PanNETs. Knocking out MGMT inhibits cancer cell growth in vitro and in vivo. Ectopic MEN1 expression suppresses MGMT transcription in a manner that depends on β-Catenin nuclear export and degradation. The Leucine 267 residue of MEN1 is crucial for regulating β-Catenin-MGMT axis activation and chemosensitivity to TMZ. Interference with β-Catenin re-sensitizes tumor cells to TMZ and significantly reduces the cytotoxic effects of high-dose TMZ treatment, and MGMT overexpression counteracts the effects of β-Catenin deficiency. This study reveals the biological importance of MGMT and a new mechanism by which MEN1 deficiency regulates its expression, thus providing a potential combinational strategy for treating patients with TMZ-resistant PanNETs.
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Affiliation(s)
- Junfeng Xu
- Center for Neuroendocrine Tumors, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Xin Lou
- Center for Neuroendocrine Tumors, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Fei Wang
- Center for Neuroendocrine Tumors, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Wuhu Zhang
- Center for Neuroendocrine Tumors, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Xiaowu Xu
- Center for Neuroendocrine Tumors, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Zeng Ye
- Center for Neuroendocrine Tumors, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Qifeng Zhuo
- Center for Neuroendocrine Tumors, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Yan Wang
- Center for Neuroendocrine Tumors, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Desheng Jing
- Center for Neuroendocrine Tumors, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Guixiong Fan
- Center for Neuroendocrine Tumors, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Xuemin Chen
- The First People's Hospital of Changzhou, The Third Affiliated Hospital of Soochow University, Changzhou, 213004, China
| | - Yue Zhang
- The First People's Hospital of Changzhou, The Third Affiliated Hospital of Soochow University, Changzhou, 213004, China
| | - Chenjie Zhou
- Center for Neuroendocrine Tumors, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Jie Chen
- Center for Neuroendocrine Tumors, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Yi Qin
- Center for Neuroendocrine Tumors, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Xianjun Yu
- Center for Neuroendocrine Tumors, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Shunrong Ji
- Center for Neuroendocrine Tumors, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
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3
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Constantinou M, Nicholson J, Zhang X, Maniati E, Lucchini S, Rosser G, Vinel C, Wang J, Lim YM, Brandner S, Nelander S, Badodi S, Marino S. Lineage specification in glioblastoma is regulated by METTL7B. Cell Rep 2024; 43:114309. [PMID: 38848215 PMCID: PMC11220825 DOI: 10.1016/j.celrep.2024.114309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 04/10/2024] [Accepted: 05/16/2024] [Indexed: 06/09/2024] Open
Abstract
Glioblastomas are the most common malignant brain tumors in adults; they are highly aggressive and heterogeneous and show a high degree of plasticity. Here, we show that methyltransferase-like 7B (METTL7B) is an essential regulator of lineage specification in glioblastoma, with an impact on both tumor size and invasiveness. Single-cell transcriptomic analysis of these tumors and of cerebral organoids derived from expanded potential stem cells overexpressing METTL7B reveal a regulatory role for the gene in the neural stem cell-to-astrocyte differentiation trajectory. Mechanistically, METTL7B downregulates the expression of key neuronal differentiation players, including SALL2, via post-translational modifications of histone marks.
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Affiliation(s)
- Myrianni Constantinou
- Brain Tumour Research Centre, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University London, London, UK
| | - James Nicholson
- Brain Tumour Research Centre, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University London, London, UK
| | - Xinyu Zhang
- Brain Tumour Research Centre, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University London, London, UK
| | - Eleni Maniati
- Barts Cancer Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London EC1M 6AS, UK
| | - Sara Lucchini
- Brain Tumour Research Centre, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University London, London, UK
| | - Gabriel Rosser
- Brain Tumour Research Centre, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University London, London, UK
| | - Claire Vinel
- Brain Tumour Research Centre, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University London, London, UK
| | - Jun Wang
- Barts Cancer Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London EC1M 6AS, UK
| | - Yau Mun Lim
- Division of Neuropathology, The National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, and Department of Neurodegenerative Disease, Queen Square, Institute of Neurology, University College London, Queen Square, London, UK
| | - Sebastian Brandner
- Division of Neuropathology, The National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, and Department of Neurodegenerative Disease, Queen Square, Institute of Neurology, University College London, Queen Square, London, UK
| | - Sven Nelander
- Department of Immunology Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Sara Badodi
- Brain Tumour Research Centre, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University London, London, UK
| | - Silvia Marino
- Brain Tumour Research Centre, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University London, London, UK.
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4
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Laverty DJ, Gupta SK, Bradshaw GA, Hunter AS, Carlson BL, Calmo NM, Chen J, Tian S, Sarkaria JN, Nagel ZD. ATM inhibition exploits checkpoint defects and ATM-dependent double strand break repair in TP53-mutant glioblastoma. Nat Commun 2024; 15:5294. [PMID: 38906885 PMCID: PMC11192742 DOI: 10.1038/s41467-024-49316-8] [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: 12/20/2022] [Accepted: 05/28/2024] [Indexed: 06/23/2024] Open
Abstract
Determining the balance between DNA double strand break repair (DSBR) pathways is essential for understanding treatment response in cancer. We report a method for simultaneously measuring non-homologous end joining (NHEJ), homologous recombination (HR), and microhomology-mediated end joining (MMEJ). Using this method, we show that patient-derived glioblastoma (GBM) samples with acquired temozolomide (TMZ) resistance display elevated HR and MMEJ activity, suggesting that these pathways contribute to treatment resistance. We screen clinically relevant small molecules for DSBR inhibition with the aim of identifying improved GBM combination therapy regimens. We identify the ATM kinase inhibitor, AZD1390, as a potent dual HR/MMEJ inhibitor that suppresses radiation-induced phosphorylation of DSBR proteins, blocks DSB end resection, and enhances the cytotoxic effects of TMZ in treatment-naïve and treatment-resistant GBMs with TP53 mutation. We further show that a combination of G2/M checkpoint deficiency and reliance upon ATM-dependent DSBR renders TP53 mutant GBMs hypersensitive to TMZ/AZD1390 and radiation/AZD1390 combinations. This report identifies ATM-dependent HR and MMEJ as targetable resistance mechanisms in TP53-mutant GBM and establishes an approach for simultaneously measuring multiple DSBR pathways in treatment selection and oncology research.
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Affiliation(s)
- Daniel J Laverty
- Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | | | | | | | | | | | - Jiajia Chen
- Mayo Clinic, Rochester, MN, 55905, USA
- Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | | | | | - Zachary D Nagel
- Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA.
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5
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Nguyen TTT, Greene LA, Mnatsakanyan H, Badr CE. Revolutionizing Brain Tumor Care: Emerging Technologies and Strategies. Biomedicines 2024; 12:1376. [PMID: 38927583 PMCID: PMC11202201 DOI: 10.3390/biomedicines12061376] [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] [Received: 05/09/2024] [Revised: 06/16/2024] [Accepted: 06/17/2024] [Indexed: 06/28/2024] Open
Abstract
Glioblastoma multiforme (GBM) is one of the most aggressive forms of brain tumor, characterized by a daunting prognosis with a life expectancy hovering around 12-16 months. Despite a century of relentless research, only a select few drugs have received approval for brain tumor treatment, largely due to the formidable barrier posed by the blood-brain barrier. The current standard of care involves a multifaceted approach combining surgery, irradiation, and chemotherapy. However, recurrence often occurs within months despite these interventions. The formidable challenges of drug delivery to the brain and overcoming therapeutic resistance have become focal points in the treatment of brain tumors and are deemed essential to overcoming tumor recurrence. In recent years, a promising wave of advanced treatments has emerged, offering a glimpse of hope to overcome the limitations of existing therapies. This review aims to highlight cutting-edge technologies in the current and ongoing stages of development, providing patients with valuable insights to guide their choices in brain tumor treatment.
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Affiliation(s)
- Trang T. T. Nguyen
- Ronald O. Perelman Department of Dermatology, Perlmutter Cancer Center, NYU Grossman School of Medicine, NYU Langone Health, New York, NY 10016, USA
| | - Lloyd A. Greene
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, NY 10032, USA;
| | - Hayk Mnatsakanyan
- Department of Neurology, Massachusetts General Hospital, Neuroscience Program, Harvard Medical School, Boston, MA 02129, USA; (H.M.); (C.E.B.)
| | - Christian E. Badr
- Department of Neurology, Massachusetts General Hospital, Neuroscience Program, Harvard Medical School, Boston, MA 02129, USA; (H.M.); (C.E.B.)
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6
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Blomquist MR, Eghlimi R, Beniwal A, Grief D, Nascari DG, Inge L, Sereduk CP, Tuncali S, Roos A, Inforzato H, Sharma R, Pirrotte P, Mehta S, Ensign SPF, Loftus JC, Tran NL. EGFRvIII Confers Sensitivity to Saracatinib in a STAT5-Dependent Manner in Glioblastoma. Int J Mol Sci 2024; 25:6279. [PMID: 38892466 PMCID: PMC11172708 DOI: 10.3390/ijms25116279] [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: 05/04/2024] [Revised: 05/29/2024] [Accepted: 06/03/2024] [Indexed: 06/21/2024] Open
Abstract
Glioblastoma (GBM) is the most common primary malignant brain tumor in adults, with few effective treatments. EGFR alterations, including expression of the truncated variant EGFRvIII, are among the most frequent genomic changes in these tumors. EGFRvIII is known to preferentially signal through STAT5 for oncogenic activation in GBM, yet targeting EGFRvIII has yielded limited clinical success to date. In this study, we employed patient-derived xenograft (PDX) models expressing EGFRvIII to determine the key points of therapeutic vulnerability within the EGFRvIII-STAT5 signaling axis in GBM. Our findings reveal that exogenous expression of paralogs STAT5A and STAT5B augments cell proliferation and that inhibition of STAT5 phosphorylation in vivo improves overall survival in combination with temozolomide (TMZ). STAT5 phosphorylation is independent of JAK1 and JAK2 signaling, instead requiring Src family kinase (SFK) activity. Saracatinib, an SFK inhibitor, attenuates phosphorylation of STAT5 and preferentially sensitizes EGFRvIII+ GBM cells to undergo apoptotic cell death relative to wild-type EGFR. Constitutively active STAT5A or STAT5B mitigates saracatinib sensitivity in EGFRvIII+ cells. In vivo, saracatinib treatment decreased survival in mice bearing EGFR WT tumors compared to the control, yet in EGFRvIII+ tumors, treatment with saracatinib in combination with TMZ preferentially improves survival.
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Affiliation(s)
- Mylan R. Blomquist
- Mayo Clinic Alix School of Medicine, Mayo Clinic Arizona, Phoenix, AZ 85054, USA; (M.R.B.); (D.G.N.)
- Department of Cancer Biology, Mayo Clinic Arizona, Scottsdale, AZ 85259, USA (S.T.); (A.R.); (H.I.)
| | - Ryan Eghlimi
- Mayo Clinic Alix School of Medicine, Mayo Clinic Arizona, Phoenix, AZ 85054, USA; (M.R.B.); (D.G.N.)
- Department of Cancer Biology, Mayo Clinic Arizona, Scottsdale, AZ 85259, USA (S.T.); (A.R.); (H.I.)
| | - Angad Beniwal
- Mayo Clinic Alix School of Medicine, Mayo Clinic Arizona, Phoenix, AZ 85054, USA; (M.R.B.); (D.G.N.)
- Department of Cancer Biology, Mayo Clinic Arizona, Scottsdale, AZ 85259, USA (S.T.); (A.R.); (H.I.)
| | - Dustin Grief
- Department of Cancer Biology, Mayo Clinic Arizona, Scottsdale, AZ 85259, USA (S.T.); (A.R.); (H.I.)
| | - David G. Nascari
- Mayo Clinic Alix School of Medicine, Mayo Clinic Arizona, Phoenix, AZ 85054, USA; (M.R.B.); (D.G.N.)
- Department of Cancer Biology, Mayo Clinic Arizona, Scottsdale, AZ 85259, USA (S.T.); (A.R.); (H.I.)
| | - Landon Inge
- Ventana Medical Systems, Roche Diagnostics, Tucson, AZ 85755, USA
| | - Christopher P. Sereduk
- Department of Cancer Biology, Mayo Clinic Arizona, Scottsdale, AZ 85259, USA (S.T.); (A.R.); (H.I.)
| | - Serdar Tuncali
- Department of Cancer Biology, Mayo Clinic Arizona, Scottsdale, AZ 85259, USA (S.T.); (A.R.); (H.I.)
| | - Alison Roos
- Department of Cancer Biology, Mayo Clinic Arizona, Scottsdale, AZ 85259, USA (S.T.); (A.R.); (H.I.)
| | - Hannah Inforzato
- Department of Cancer Biology, Mayo Clinic Arizona, Scottsdale, AZ 85259, USA (S.T.); (A.R.); (H.I.)
| | - Ritin Sharma
- Collaborative Center for Translational Mass Spectrometry, The Translational Genomics Research Institute, Phoenix, AZ 85004, USA; (R.S.)
| | - Patrick Pirrotte
- Collaborative Center for Translational Mass Spectrometry, The Translational Genomics Research Institute, Phoenix, AZ 85004, USA; (R.S.)
| | - Shwetal Mehta
- Department of Translational Neuroscience, Barrow Neurological Institute, St. Joseph’s Hospital and Medical Center, Phoenix, AZ 85013, USA
| | - Shannon P. Fortin Ensign
- Department of Cancer Biology, Mayo Clinic Arizona, Scottsdale, AZ 85259, USA (S.T.); (A.R.); (H.I.)
- Department of Hematology and Oncology, Mayo Clinic Arizona, Phoenix, AZ 85054, USA
| | - Joseph C. Loftus
- Department of Cancer Biology, Mayo Clinic Arizona, Scottsdale, AZ 85259, USA (S.T.); (A.R.); (H.I.)
| | - Nhan L. Tran
- Department of Cancer Biology, Mayo Clinic Arizona, Scottsdale, AZ 85259, USA (S.T.); (A.R.); (H.I.)
- Department of Neurological Surgery, Mayo Clinic Arizona, Phoenix, AZ 85013, USA
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7
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Ji J, Dragojevic S, Callaghan CM, Smith EJ, Talele S, Zhang W, Connors MA, Mladek AC, Hu Z, Bakken KK, Sarkaria PP, Carlson BL, Burgenske DM, Decker PA, Rashid MA, Jang MH, Gupta SK, Eckel-Passow JE, Elmquist WF, Sarkaria JN. Differential Distribution of the DNA-PKcs Inhibitor Peposertib Selectively Radiosensitizes Patient-derived Melanoma Brain Metastasis Xenografts. Mol Cancer Ther 2024; 23:662-671. [PMID: 38224566 PMCID: PMC11063760 DOI: 10.1158/1535-7163.mct-23-0552] [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: 08/22/2023] [Revised: 10/26/2023] [Accepted: 01/10/2024] [Indexed: 01/17/2024]
Abstract
Radioresistance of melanoma brain metastases limits the clinical utility of conventionally fractionated brain radiation in this disease, and strategies to improve radiation response could have significant clinical impact. The catalytic subunit of DNA-dependent protein kinase (DNA-PKcs) is critical for repair of radiation-induced DNA damage, and inhibitors of this kinase can have potent effects on radiation sensitivity. In this study, the radiosensitizing effects of the DNA-PKcs inhibitor peposertib were evaluated in patient-derived xenografts of melanoma brain metastases (M12, M15, M27). In clonogenic survival assays, peposertib augmented radiation-induced killing of M12 cells at concentrations ≥100 nmol/L, and a minimum of 16 hours exposure allowed maximal sensitization. This information was integrated with pharmacokinetic modeling to define an optimal dosing regimen for peposertib of 125 mpk dosed just prior to and 7 hours after irradiation. Using this drug dosing regimen in combination with 2.5 Gy × 5 fractions of radiation, significant prolongation in median survival was observed in M12-eGFP (104%; P = 0.0015) and M15 (50%; P = 0.03), while more limited effects were seen in M27 (16%, P = 0.04). These data support the concept of developing peposertib as a radiosensitizer for brain metastases and provide a paradigm for integrating in vitro and pharmacokinetic data to define an optimal radiosensitizing regimen for potent DNA repair inhibitors.
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Affiliation(s)
- Jianxiang Ji
- Department of Neurosurgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, P.R. China
| | - Sonja Dragojevic
- Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota
| | | | - Emily J. Smith
- Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota
| | - Surabhi Talele
- Brain Barriers Research Center, Department of Pharmaceutics, College of Pharmacy, University of Minnesota, Minneapolis, Minnesota
| | - Wenjuan Zhang
- Brain Barriers Research Center, Department of Pharmaceutics, College of Pharmacy, University of Minnesota, Minneapolis, Minnesota
| | | | - Ann C. Mladek
- Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota
| | - Zeng Hu
- Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota
| | | | | | - Brett L. Carlson
- Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota
| | | | - Paul A. Decker
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, Minnesota
| | - Mohammad Abdur Rashid
- RWJ-Neurosurgery, Rutgers, The State University of New Jersey, New Brunswick, New Jersey
| | - Mi-hyeon Jang
- RWJ-Neurosurgery, Rutgers, The State University of New Jersey, New Brunswick, New Jersey
| | - Shiv K. Gupta
- Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota
| | | | - William F. Elmquist
- Brain Barriers Research Center, Department of Pharmaceutics, College of Pharmacy, University of Minnesota, Minneapolis, Minnesota
| | - Jann N. Sarkaria
- Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota
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8
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Yang E, Hong B, Wang Y, Wang Q, Zhao J, Cui X, Wu Y, Yang S, Su D, Liu X, Kang C. EPIC-0628 abrogates HOTAIR/EZH2 interaction and enhances the temozolomide efficacy via promoting ATF3 expression and inhibiting DNA damage repair in glioblastoma. Cancer Lett 2024; 588:216812. [PMID: 38490327 DOI: 10.1016/j.canlet.2024.216812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 03/07/2024] [Accepted: 03/08/2024] [Indexed: 03/17/2024]
Abstract
The efficacy of temozolomide (TMZ) treatment in glioblastoma (GBM) is influenced by various mechanisms, mainly including the level of O6-methylguanine-DNA methyltransferase (MGMT) and the activity of DNA damage repair (DDR) pathways. In our previous study, we had proved that long non-coding RNA HOTAIR regulated the GBM progression and mediated DDR by interacting with EZH2, the catalytic subunit of PRC2. In this study, we developed a small-molecule inhibitor called EPIC-0628 that selectively disrupted the HOTAIR-EZH2 interaction and promoted ATF3 expression. The upregulation of ATF3 inhibited the recruitment of p300, p-p65, p-Stat3 and SP1 to the MGMT promoter. Hence, EPIC-0628 silenced MGMT expression. Besides, EPIC-0628 induced cell cycle arrest by increasing the expression of CDKN1A and impaired DNA double-strand break repair via suppressing the ATF3-p38-E2F1 pathway. Lastly, EPIC-0628 enhanced TMZ efficacy in GBM in vitro and vivo. Hence, this study provided evidence for the combination of epigenetic drugs EPIC-0628 with TMZ for GBM treatment through the above mechanisms.
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Affiliation(s)
- Eryan Yang
- Lab of Neuro- Oncology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China; Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, 300052, China; Tianjin Key Laboratory of Female Reproductive Health and Eugenics, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Biao Hong
- Lab of Neuro- Oncology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Yunfei Wang
- Lab of Neuro- Oncology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Qixue Wang
- Lab of Neuro- Oncology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Jixing Zhao
- Lab of Neuro- Oncology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Xiaoteng Cui
- Lab of Neuro- Oncology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Ye Wu
- Lab of Neuro- Oncology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Shixue Yang
- Lab of Neuro- Oncology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Dongyuan Su
- Lab of Neuro- Oncology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Xiaomin Liu
- Neuro-Oncology Center, Tianjin Huanhu Hospital, Nankai University, Tianjin, 300350, China
| | - Chunsheng Kang
- Lab of Neuro- Oncology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China.
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9
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Shaw R, Basu M, Karmakar S, Ghosh MK. MGMT in TMZ-based glioma therapy: Multifaceted insights and clinical trial perspectives. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024; 1871:119673. [PMID: 38242327 DOI: 10.1016/j.bbamcr.2024.119673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 01/05/2024] [Accepted: 01/10/2024] [Indexed: 01/21/2024]
Abstract
Temozolomide (TMZ) is the most preferred and approved chemotherapeutic drug for either first- or second-line chemotherapy for glioma patients across the globe. In glioma patients, resistance to treatment with alkylating drugs like TMZ is known to be conferred by exalted levels of MGMT gene expression. On the contrary, epigenetic silencing through MGMT gene promoter methylation leading to subsequent reduction in MGMT transcription and protein expression, is predicted to have a response favoring TMZ treatment. Thus, MGMT protein level in cancer cells is a crucial determining factor in indicating and predicting the choice of alkylating agents in chemotherapy or choosing glioma patients directly for a second line of treatment. Thus, in-depth research is necessary to achieve insights into MGMT gene regulation that has recently enticed a fascinating interest in epigenetic, transcriptional, post-transcriptional, and post-translational levels. Furthermore, MGMT promoter methylation, stability of MGMT protein, and related subsequent adaptive responses are also important contributors to strategic developments in glioma therapy. With applications to its identification as a prognostic biomarker, thus predicting response to advanced glioma therapy, this review aims to concentrate on the mechanistic role and regulation of MGMT gene expression at epigenetic, transcriptional, post-transcriptional, and post-translational levels functioning under the control of multiple signaling dynamics.
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Affiliation(s)
- Rajni Shaw
- Cancer Biology and Inflammatory Disorder Division, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology (CSIR-IICB), TRUE Campus, CN-6, Sector-V, Salt Lake, Kolkata-700091 & 4, Raja S.C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Malini Basu
- Department of Microbiology, Dhruba Chand Halder College, Dakshin Barasat, South 24, Paraganas 743372, India
| | - Subhajit Karmakar
- Cancer Biology and Inflammatory Disorder Division, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology (CSIR-IICB), TRUE Campus, CN-6, Sector-V, Salt Lake, Kolkata-700091 & 4, Raja S.C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Mrinal K Ghosh
- Cancer Biology and Inflammatory Disorder Division, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology (CSIR-IICB), TRUE Campus, CN-6, Sector-V, Salt Lake, Kolkata-700091 & 4, Raja S.C. Mullick Road, Jadavpur, Kolkata 700032, India.
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10
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Jiang LY, Wang GH, Xu JJ, Li XL, Lin XY, Fang X, Zhang HX, Feng M, Jiang CM. CREB-induced LINC00473 promotes chemoresistance to TMZ in glioblastoma by regulating O6-methylguanine-DNA-methyltransferase expression via CEBPα binding. Neuropharmacology 2024; 243:109790. [PMID: 37981063 DOI: 10.1016/j.neuropharm.2023.109790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 11/10/2023] [Accepted: 11/11/2023] [Indexed: 11/21/2023]
Abstract
Temozolomide (TMZ) offers substantial therapeutic benefits for glioblastoma (GB), yet its efficacy is hindered the development of chemoresistance. The role of long non-coding RNAs (lncRNAs) in tumorigenesis and chemoresistance has garnered great attention in studies on TMZ resistance. This study aimed to reveal the role of LINC00473 in TMZ chemoresistance and the underlying mechanism in GB. The expression of LINC00473 in TMZ-resistant and TMZ-sensitive GB cells was investigated using qPCR analysis. The role of LINC00473 in regulating TMZ resistance in GB cells was analyzed using the CCK-8 assay, colony formation assay, and flow cytometry. The next steps included assessing if LINC00473 is regulated by CREB and whether LINC00473 promotes chemoresistance through MGMT regulation via CEBPα. Further, chemoresistance delivery between cells via exosomal LINC00473 was validated in vitro and in vivo. Results showed that LINC00473 levels were elevated in TMZ-resistant cells upon CREB activation, and the lncRNA promoted the chemoresistance of GB cells through the upregulation of MGMT expression. Mechanistically, LINC00473 regulated the MGMT expression by binding to CEBPα. The highly-expressed LINC00473 packaged in exosomes transferred chemoresistance to the adjacent TMZ-sensitive GB cells. In conclusion, a novel CREB/LINC00473/CEBPα/MGMT pathway was revealed in the GB TMZ-resistance formation. In addition, an exosome-based mechanism of chemoresistance transmission was revealed, suggesting that LINC00473 could be used as a novel therapeutic target for GB.
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Affiliation(s)
- Li-Ya Jiang
- Zhejiang University School of Medicine, Hangzhou, 310058, Zhejiang Province, China; Department of Pediatrics, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang Province, China
| | - Guan-Hao Wang
- Department of Pediatrics, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang Province, China; The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang Province, China
| | - Jing-Jiao Xu
- Department of Pediatrics, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang Province, China; The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang Province, China
| | - Xiao-Li Li
- Department of Pediatrics, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang Province, China
| | - Xiao-Yan Lin
- Department of Pediatrics, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang Province, China
| | - Xiang Fang
- Department of Clinical Laboratory Center, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang Province, China
| | - Hong-Xu Zhang
- Department of Ophthalmology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang Province, China
| | - Mei Feng
- Department of Pediatrics, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang Province, China.
| | - Chun-Ming Jiang
- Department of Pediatrics, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang Province, China.
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11
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Merati A, Kotian S, Acton A, Placzek W, Smithberger E, Shelton AK, Miller CR, Stern JL. Glioma Stem Cells Are Sensitized to BCL-2 Family Inhibition by Compromising Histone Deacetylases. Int J Mol Sci 2023; 24:13688. [PMID: 37761989 PMCID: PMC10530722 DOI: 10.3390/ijms241813688] [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] [Received: 07/29/2023] [Revised: 08/14/2023] [Accepted: 08/25/2023] [Indexed: 09/29/2023] Open
Abstract
Glioblastoma (GBM) remains an incurable disease with an extremely high five-year recurrence rate. We studied apoptosis in glioma stem cells (GSCs) in response to HDAC inhibition (HDACi) combined with MEK1/2 inhibition (MEKi) or BCL-2 family inhibitors. MEKi effectively combined with HDACi to suppress growth, induce cell cycle defects, and apoptosis, as well as to rescue the expression of the pro-apoptotic BH3-only proteins BIM and BMF. A RNAseq analysis of GSCs revealed that HDACi repressed the pro-survival BCL-2 family genes MCL1 and BCL-XL. We therefore replaced MEKi with BCL-2 family inhibitors and observed enhanced apoptosis. Conversely, a ligand for the cancer stem cell receptor CD44 led to reductions in BMF, BIM, and apoptosis. Our data strongly support further testing of HDACi in combination with MEKi or BCL-2 family inhibitors in glioma.
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Affiliation(s)
- Aran Merati
- Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Spandana Kotian
- Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Alexus Acton
- Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - William Placzek
- Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Erin Smithberger
- O’Neal Comprehensive Cancer Center, Birmingham, AL 35294, USA
- Department of Pathology, Division of Neuropathology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Abigail K. Shelton
- O’Neal Comprehensive Cancer Center, Birmingham, AL 35294, USA
- Department of Pathology, Division of Neuropathology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - C. Ryan Miller
- O’Neal Comprehensive Cancer Center, Birmingham, AL 35294, USA
- Department of Pathology, Division of Neuropathology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Josh L. Stern
- Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- O’Neal Comprehensive Cancer Center, Birmingham, AL 35294, USA
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12
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Chang CM, Ramesh KK, Huang V, Gurbani S, Kleinberg LR, Weinberg BD, Shim H, Shu HKG. Mutant Isocitrate Dehydrogenase 1 Expression Enhances Response of Gliomas to the Histone Deacetylase Inhibitor Belinostat. Tomography 2023; 9:942-954. [PMID: 37218937 PMCID: PMC10204413 DOI: 10.3390/tomography9030077] [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: 01/31/2023] [Revised: 03/27/2023] [Accepted: 04/27/2023] [Indexed: 05/24/2023] Open
Abstract
Histone deacetylase inhibitors (HDACis) are drugs that target the epigenetic state of cells by modifying the compaction of chromatin through effects on histone acetylation. Gliomas often harbor a mutation of isocitrate dehydrogenase (IDH) 1 or 2 that leads to changes in their epigenetic state presenting a hypermethylator phenotype. We postulated that glioma cells with IDH mutation, due to the presence of epigenetic changes, will show increased sensitivity to HDACis. This hypothesis was tested by expressing mutant IDH1 with a point alteration-converting arginine 132 to histidine-within glioma cell lines that contain wild-type IDH1. Glioma cells engineered to express mutant IDH1 produced D-2-hydroxyglutarate as expected. When assessed for response to the pan-HDACi drug belinostat, mutant IDH1-expressing glioma cells were subjected to more potent inhibition of growth than the corresponding control cells. Increased sensitivity to belinostat correlated with the increased induction of apoptosis. Finally, a phase I trial assessing the addition of belinostat to standard-of-care therapy for newly diagnosed glioblastoma patients included one patient with a mutant IDH1 tumor. This mutant IDH1 tumor appeared to display greater sensitivity to the addition of belinostat than the other cases with wild-type IDH tumors based on both standard magnetic resonance imaging (MRI) and advanced spectroscopic MRI criteria. These data together suggest that IDH mutation status within gliomas may serve as a biomarker of response to HDACis.
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Affiliation(s)
- Chi-Ming Chang
- Department of Radiation Oncology, Emory University, Atlanta, GA 30322, USA
| | - Karthik K. Ramesh
- Department of Radiation Oncology, Emory University, Atlanta, GA 30322, USA
- Department of Biomedical Engineering, Emory University and Georgia Institute of Technology, Atlanta, GA 30322, USA
| | - Vicki Huang
- Department of Radiation Oncology, Emory University, Atlanta, GA 30322, USA
- Department of Biomedical Engineering, Emory University and Georgia Institute of Technology, Atlanta, GA 30322, USA
| | - Saumya Gurbani
- Department of Radiation Oncology, Emory University, Atlanta, GA 30322, USA
| | | | - Brent D. Weinberg
- Department of Radiology and Imaging Sciences, Emory University, Atlanta, GA 30322, USA
| | - Hyunsuk Shim
- Department of Radiation Oncology, Emory University, Atlanta, GA 30322, USA
- Department of Biomedical Engineering, Emory University and Georgia Institute of Technology, Atlanta, GA 30322, USA
- Department of Radiology and Imaging Sciences, Emory University, Atlanta, GA 30322, USA
| | - Hui-Kuo G. Shu
- Department of Radiation Oncology, Emory University, Atlanta, GA 30322, USA
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13
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Teraiya M, Perreault H, Chen VC. An overview of glioblastoma multiforme and temozolomide resistance: can LC-MS-based proteomics reveal the fundamental mechanism of temozolomide resistance? Front Oncol 2023; 13:1166207. [PMID: 37182181 PMCID: PMC10169742 DOI: 10.3389/fonc.2023.1166207] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 03/23/2023] [Indexed: 05/16/2023] Open
Abstract
Glioblastoma multiforme (GBM) is a primary type of lethal brain tumor. Over the last two decades, temozolomide (TMZ) has remained the primary chemotherapy for GBM. However, TMZ resistance in GBM constitutes an underlying factor contributing to high rates of mortality. Despite intense efforts to understand the mechanisms of therapeutic resistance, there is currently a poor understanding of the molecular processes of drug resistance. For TMZ, several mechanisms linked to therapeutic resistance have been proposed. In the past decade, significant progress in the field of mass spectrometry-based proteomics has been made. This review article discusses the molecular drivers of GBM, within the context of TMZ resistance with a particular emphasis on the potential benefits and insights of using global proteomic techniques.
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Affiliation(s)
- Milan Teraiya
- Chemistry Department, University of Manitoba, Winnipeg, MB, Canada
| | - Helene Perreault
- Chemistry Department, University of Manitoba, Winnipeg, MB, Canada
| | - Vincent C. Chen
- Chemistry Department, Brandon University, Brandon, MB, Canada
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14
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Lyu Y, Guo Y, Okeoma CM, Yan Z, Hu N, Li Z, Zhou S, Zhao X, Li J, Wang X. Engineered extracellular vesicles (EVs): Promising diagnostic/therapeutic tools for pediatric high-grade glioma. Biomed Pharmacother 2023; 163:114630. [PMID: 37094548 DOI: 10.1016/j.biopha.2023.114630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/29/2023] [Accepted: 03/29/2023] [Indexed: 04/26/2023] Open
Abstract
Diffuse intrinsic pontine glioma (DIPG) is a highly malignant brain tumor that mainly occurs in children with extremely low overall survival. Traditional therapeutic strategies, such as surgical resection and chemotherapy, are not feasible mostly due to the special location and highly diffused features. Radiotherapy turns out to be the standard treatment method but with limited benefits of overall survival. A broad search for novel and targeted therapies is in the progress of both preclinical investigations and clinical trials. Extracellular vesicles (EVs) emerged as a promising diagnostic and therapeutic candidate due to their distinct biocompatibility, excellent cargo-loading-delivery capacity, high biological barrier penetration efficiency, and ease of modification. The utilization of EVs in various diseases as biomarker diagnoses or therapeutic agents is revolutionizing modern medical research and practice. In this review, we will briefly talk about the research development of DIPG, and present a detailed description of EVs in medical applications, with a discussion on the application of engineered peptides on EVs. The possibility of applying EVs as a diagnostic tool and drug delivery system in DIPG is also discussed.
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Affiliation(s)
- Yuan Lyu
- Medical Research Center, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China; Henan Joint International Laboratory of Glioma Metabolism and Microenvironment Research, Henan Provincial Department of Science and Technology, Zhengzhou, Henan 450052, China; Institute of Neuroscience, Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Yupei Guo
- Henan Joint International Laboratory of Glioma Metabolism and Microenvironment Research, Henan Provincial Department of Science and Technology, Zhengzhou, Henan 450052, China; Institute of Neuroscience, Zhengzhou University, Zhengzhou, Henan 450052, China; Department of Neurosurgery, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Chioma M Okeoma
- Department of Pathology, Microbiology, and Immunology, New York Medical College, Valhalla, NY 10595-1524, USA
| | - Zhaoyue Yan
- Department of Neurosurgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - Nan Hu
- Henan Joint International Laboratory of Glioma Metabolism and Microenvironment Research, Henan Provincial Department of Science and Technology, Zhengzhou, Henan 450052, China; Institute of Neuroscience, Zhengzhou University, Zhengzhou, Henan 450052, China; Department of Neurosurgery, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Zian Li
- Henan Joint International Laboratory of Glioma Metabolism and Microenvironment Research, Henan Provincial Department of Science and Technology, Zhengzhou, Henan 450052, China; Institute of Neuroscience, Zhengzhou University, Zhengzhou, Henan 450052, China; Department of Neurosurgery, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Shaolong Zhou
- Henan Joint International Laboratory of Glioma Metabolism and Microenvironment Research, Henan Provincial Department of Science and Technology, Zhengzhou, Henan 450052, China; Institute of Neuroscience, Zhengzhou University, Zhengzhou, Henan 450052, China; Department of Neurosurgery, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Xin Zhao
- Department of Radiology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Junqi Li
- Medical Research Center, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China; Henan Joint International Laboratory of Glioma Metabolism and Microenvironment Research, Henan Provincial Department of Science and Technology, Zhengzhou, Henan 450052, China; Institute of Neuroscience, Zhengzhou University, Zhengzhou, Henan 450052, China.
| | - Xinjun Wang
- Henan Joint International Laboratory of Glioma Metabolism and Microenvironment Research, Henan Provincial Department of Science and Technology, Zhengzhou, Henan 450052, China; Institute of Neuroscience, Zhengzhou University, Zhengzhou, Henan 450052, China; Department of Neurosurgery, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China.
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15
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Li J, Song C, Gu J, Li C, Zang W, Shi L, Chen L, Zhu L, Zhou M, Wang T, Li H, Qi S, Lu Y. RBBP4 regulates the expression of the Mre11-Rad50-NBS1 (MRN) complex and promotes DNA double-strand break repair to mediate glioblastoma chemoradiotherapy resistance. Cancer Lett 2023; 557:216078. [PMID: 36736531 DOI: 10.1016/j.canlet.2023.216078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 12/27/2022] [Accepted: 01/28/2023] [Indexed: 02/05/2023]
Abstract
For treatment of glioblastoma (GBM), temozolomide (TMZ) and radiotherapy (RT) exert antitumor effects by inducing DNA double-strand breaks (DSBs), mainly via futile DNA mismatch repair (MMR) and inducing apoptosis. Here, we provide evidence that RBBP4 modulates glioblastoma resistance to chemotherapy and radiotherapy by recruiting transcription factors and epigenetic regulators that bind to their promoters to regulate the expression of the Mre11-Rad50-NBS1(MRN) complex and the level of DNA-DSB repair, which are closely associated with recovery from TMZ- and radiotherapy-induced DNA damage in U87MG and LN229 glioblastoma cells, which have negative MGMT expression. Disruption of RBBP4 induced GBM cell DNA damage and apoptosis in response to TMZ and radiotherapy and enhanced radiotherapy and chemotherapy sensitivity by the independent pathway of MGMT. These results displayed a possible chemo-radioresistant mechanism in MGMT negative GBM. In addition, the RBBP4-MRN complex regulation axis may provide an interesting target for developing therapy-sensitizing strategies for GBM.
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Affiliation(s)
- Junjie Li
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China; Nanfang Neurology Research Institution, Nanfang Hospital, Southern Medical University, Guangzhou, China; Nanfang Glioma Center, Guangzhou, China
| | - Chong Song
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Neurosurgery, The Central Hospital of Dalian University of Technology, Dalian, China
| | - Junwei Gu
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China; The First People's Hospital of Xiushui County, Jiujiang, Jiangxi Province, China
| | - Chiyang Li
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Wenrui Zang
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Linyong Shi
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Lei Chen
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Liwen Zhu
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Min Zhou
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Tong Wang
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Hong Li
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China; Nanfang Neurology Research Institution, Nanfang Hospital, Southern Medical University, Guangzhou, China; Nanfang Glioma Center, Guangzhou, China
| | - Songtao Qi
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China; Nanfang Neurology Research Institution, Nanfang Hospital, Southern Medical University, Guangzhou, China; Nanfang Glioma Center, Guangzhou, China
| | - Yuntao Lu
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China; Nanfang Neurology Research Institution, Nanfang Hospital, Southern Medical University, Guangzhou, China; Nanfang Glioma Center, Guangzhou, China.
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16
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Burko P, D’Amico G, Miltykh I, Scalia F, Conway de Macario E, Macario AJL, Giglia G, Cappello F, Caruso Bavisotto C. Molecular Pathways Implicated in Radioresistance of Glioblastoma Multiforme: What Is the Role of Extracellular Vesicles? Int J Mol Sci 2023; 24:ijms24054883. [PMID: 36902314 PMCID: PMC10003080 DOI: 10.3390/ijms24054883] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/16/2023] [Accepted: 02/28/2023] [Indexed: 03/06/2023] Open
Abstract
Glioblastoma multiforme (GBM) is a primary brain tumor that is very aggressive, resistant to treatment, and characterized by a high degree of anaplasia and proliferation. Routine treatment includes ablative surgery, chemotherapy, and radiotherapy. However, GMB rapidly relapses and develops radioresistance. Here, we briefly review the mechanisms underpinning radioresistance and discuss research to stop it and install anti-tumor defenses. Factors that participate in radioresistance are varied and include stem cells, tumor heterogeneity, tumor microenvironment, hypoxia, metabolic reprogramming, the chaperone system, non-coding RNAs, DNA repair, and extracellular vesicles (EVs). We direct our attention toward EVs because they are emerging as promising candidates as diagnostic and prognostication tools and as the basis for developing nanodevices for delivering anti-cancer agents directly into the tumor mass. EVs are relatively easy to obtain and manipulate to endow them with the desired anti-cancer properties and to administer them using minimally invasive procedures. Thus, isolating EVs from a GBM patient, supplying them with the necessary anti-cancer agent and the capability of recognizing a specified tissue-cell target, and reinjecting them into the original donor appears, at this time, as a reachable objective of personalized medicine.
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Affiliation(s)
- Pavel Burko
- Section of Human Anatomy, Department of Biomedicine, Neuroscience and Advanced Diagnostics (BIND), University of Palermo, 90133 Palermo, Italy
| | - Giuseppa D’Amico
- Section of Human Anatomy, Department of Biomedicine, Neuroscience and Advanced Diagnostics (BIND), University of Palermo, 90133 Palermo, Italy
| | - Ilia Miltykh
- Department of Human Anatomy, Institute of Medicine, Penza State University, 440026 Penza, Russia
| | - Federica Scalia
- Section of Human Anatomy, Department of Biomedicine, Neuroscience and Advanced Diagnostics (BIND), University of Palermo, 90133 Palermo, Italy
- Department of Microbiology and Immunology, School of Medicine, University of Maryland at Baltimore-Institute of Marine and Environmental Technology (IMET), Baltimore, MD 21202, USA
| | - Everly Conway de Macario
- Department of Microbiology and Immunology, School of Medicine, University of Maryland at Baltimore-Institute of Marine and Environmental Technology (IMET), Baltimore, MD 21202, USA
- Euro-Mediterranean Institute of Science and Technology (IEMEST), 90139 Palermo, Italy
| | - Alberto J. L. Macario
- Department of Microbiology and Immunology, School of Medicine, University of Maryland at Baltimore-Institute of Marine and Environmental Technology (IMET), Baltimore, MD 21202, USA
- Euro-Mediterranean Institute of Science and Technology (IEMEST), 90139 Palermo, Italy
| | - Giuseppe Giglia
- Euro-Mediterranean Institute of Science and Technology (IEMEST), 90139 Palermo, Italy
- Section of Human Physiology, Department of Biomedicine, Neuroscience and Advanced Diagnostics (BIND), University of Palermo, 90133 Palermo, Italy
| | - Francesco Cappello
- Section of Human Anatomy, Department of Biomedicine, Neuroscience and Advanced Diagnostics (BIND), University of Palermo, 90133 Palermo, Italy
- Euro-Mediterranean Institute of Science and Technology (IEMEST), 90139 Palermo, Italy
| | - Celeste Caruso Bavisotto
- Section of Human Anatomy, Department of Biomedicine, Neuroscience and Advanced Diagnostics (BIND), University of Palermo, 90133 Palermo, Italy
- Euro-Mediterranean Institute of Science and Technology (IEMEST), 90139 Palermo, Italy
- Correspondence: ; Tel.: +39-0916553501
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17
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Saini A, Ballesta A, Gallo JM. Cell state-directed therapy - epigenetic modulation of gene transcription demonstrated with a quantitative systems pharmacology model of temozolomide. CPT Pharmacometrics Syst Pharmacol 2023; 12:360-374. [PMID: 36642831 PMCID: PMC10014061 DOI: 10.1002/psp4.12916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 11/04/2022] [Accepted: 12/16/2022] [Indexed: 01/17/2023] Open
Abstract
Cancer therapy continues to be plagued by modest therapeutic advances. This is particularly evident in glioblastoma multiforme (GBM) wherein treatment failures are attributed to intratumoral heterogeneity (ITH), a dynamic process of cell state transitions or plasticity. To address ITH, we introduce the concept of cell state-directed (CSD) therapy through a quantitative systems pharmacology model of temozolomide (TMZ), a cornerstone of GBM drug therapy. The model consisting of multiple modules incorporated an epigenetic-based gene transcription-translation module that enabled CSD therapy. Numerous model simulations were conducted to demonstrate the potential impact of CSD therapy on TMZ activity. The simulations included those based on global sensitivity analyses to identify fragile nodes - MDM2 and XIAP - in the network, and also how an epigenetic modifier (birabresib) could overcome a mechanism of TMZ resistance. The positive results of CSD therapy on TMZ activity supports continued efforts to develop CSD therapy as a new anticancer approach.
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Affiliation(s)
- Anshul Saini
- Department of Pharmaceutical Sciences, University at Buffalo, Buffalo, New York, USA
| | - Annabelle Ballesta
- Inserm Unit 900, Institut Curie, MINES ParisTech CBIO - Centre for Computational Biology, PSL Research University, Saint-Cloud, France
| | - James M Gallo
- Department of Pharmaceutical Sciences, University at Buffalo, Buffalo, New York, USA
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18
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Al-Holou WN, Wang H, Ravikumar V, Shankar S, Oneka M, Fehmi Z, Verhaak RG, Kim H, Pratt D, Camelo-Piragua S, Speers C, Wahl DR, Hollon T, Sagher O, Heth JA, Muraszko KM, Lawrence TS, de Carvalho AC, Mikkelsen T, Rao A, Rehemtulla A. Subclonal evolution and expansion of spatially distinct THY1-positive cells is associated with recurrence in glioblastoma. Neoplasia 2023; 36:100872. [PMID: 36621024 PMCID: PMC9841165 DOI: 10.1016/j.neo.2022.100872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 12/22/2022] [Indexed: 01/07/2023]
Abstract
PURPOSE Glioblastoma(GBM) is a lethal disease characterized by inevitable recurrence. Here we investigate the molecular pathways mediating resistance, with the goal of identifying novel therapeutic opportunities. EXPERIMENTAL DESIGN We developed a longitudinal in vivo recurrence model utilizing patient-derived explants to produce paired specimens(pre- and post-recurrence) following temozolomide(TMZ) and radiation(IR). These specimens were evaluated for treatment response and to identify gene expression pathways driving treatment resistance. Findings were clinically validated using spatial transcriptomics of human GBMs. RESULTS These studies reveal in replicate cohorts, a gene expression profile characterized by upregulation of mesenchymal and stem-like genes at recurrence. Analyses of clinical databases revealed significant association of this transcriptional profile with worse overall survival and upregulation at recurrence. Notably, gene expression analyses identified upregulation of TGFβ signaling, and more than one-hundred-fold increase in THY1 levels at recurrence. Furthermore, THY1-positive cells represented <10% of cells in treatment-naïve tumors, compared to 75-96% in recurrent tumors. We then isolated THY1-positive cells from treatment-naïve patient samples and determined that they were inherently resistant to chemoradiation in orthotopic models. Additionally, using image-guided biopsies from treatment-naïve human GBM, we conducted spatial transcriptomic analyses. This revealed rare THY1+ regions characterized by mesenchymal/stem-like gene expression, analogous to our recurrent mouse model, which co-localized with macrophages within the perivascular niche. We then inhibited TGFBRI activity in vivo which decreased mesenchymal/stem-like protein levels, including THY1, and restored sensitivity to TMZ/IR in recurrent tumors. CONCLUSIONS These findings reveal that GBM recurrence may result from tumor repopulation by pre-existing, therapy-resistant, THY1-positive, mesenchymal cells within the perivascular niche.
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Affiliation(s)
- Wajd N Al-Holou
- Department of Neurosurgery, University of Michigan, Ann Arbor, MI 48109, United States
| | - Hanxiao Wang
- Department of Radiation Oncology, University of Michigan, NCRC 520, Room 1342, Ann Arbor, MI 48105, United States; AstraZeneca, United States
| | - Visweswaran Ravikumar
- Department of Computational Medicine & Bioinformatics, The University of Michigan Medical School, Ann Arbor, MI 48109, United States
| | - Sunita Shankar
- Department of Neurosurgery, University of Michigan, Ann Arbor, MI 48109, United States
| | - Morgan Oneka
- Department of Computational Medicine & Bioinformatics, The University of Michigan Medical School, Ann Arbor, MI 48109, United States
| | - Ziad Fehmi
- Department of Neurosurgery, University of Michigan, Ann Arbor, MI 48109, United States
| | | | - Hoon Kim
- The Jackson Laboratory, Farmington, CT 06032, United States; Department of Biopharmaceutical Convergence, Sungkyunkwan University, South Korea
| | - Drew Pratt
- Department of Pathology, University of Michigan, United States
| | | | - Corey Speers
- Department of Radiation Oncology, University of Michigan, NCRC 520, Room 1342, Ann Arbor, MI 48105, United States
| | - Daniel R Wahl
- Department of Radiation Oncology, University of Michigan, NCRC 520, Room 1342, Ann Arbor, MI 48105, United States
| | - Todd Hollon
- Department of Neurosurgery, University of Michigan, Ann Arbor, MI 48109, United States
| | - Oren Sagher
- Department of Neurosurgery, University of Michigan, Ann Arbor, MI 48109, United States
| | - Jason A Heth
- Department of Neurosurgery, University of Michigan, Ann Arbor, MI 48109, United States
| | - Karin M Muraszko
- Department of Neurosurgery, University of Michigan, Ann Arbor, MI 48109, United States
| | - Theodore S Lawrence
- Department of Radiation Oncology, University of Michigan, NCRC 520, Room 1342, Ann Arbor, MI 48105, United States
| | - Ana C de Carvalho
- Department of Neurosurgery, Henry Ford Hospital, Detroit, MI 48202, United States
| | - Tom Mikkelsen
- Department of Neurosurgery, Henry Ford Hospital, Detroit, MI 48202, United States
| | - Arvind Rao
- Department of Radiation Oncology, University of Michigan, NCRC 520, Room 1342, Ann Arbor, MI 48105, United States; Department of Computational Medicine & Bioinformatics, The University of Michigan Medical School, Ann Arbor, MI 48109, United States
| | - Alnawaz Rehemtulla
- Department of Radiation Oncology, University of Michigan, NCRC 520, Room 1342, Ann Arbor, MI 48105, United States.
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19
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Everix L, Seane EN, Ebenhan T, Goethals I, Bolcaen J. Introducing HDAC-Targeting Radiopharmaceuticals for Glioblastoma Imaging and Therapy. Pharmaceuticals (Basel) 2023; 16:227. [PMID: 37259375 PMCID: PMC9967489 DOI: 10.3390/ph16020227] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/24/2023] [Accepted: 01/26/2023] [Indexed: 09/29/2023] Open
Abstract
Despite recent advances in multimodality therapy for glioblastoma (GB) incorporating surgery, radiotherapy, chemotherapy and targeted therapy, the overall prognosis remains poor. One of the interesting targets for GB therapy is the histone deacetylase family (HDAC). Due to their pleiotropic effects on, e.g., DNA repair, cell proliferation, differentiation, apoptosis and cell cycle, HDAC inhibitors have gained a lot of attention in the last decade as anti-cancer agents. Despite their known underlying mechanism, their therapeutic activity is not well-defined. In this review, an extensive overview is given of the current status of HDAC inhibitors for GB therapy, followed by an overview of current HDAC-targeting radiopharmaceuticals. Imaging HDAC expression or activity could provide key insights regarding the role of HDAC enzymes in gliomagenesis, thus identifying patients likely to benefit from HDACi-targeted therapy.
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Affiliation(s)
- Liesbeth Everix
- Molecular Imaging Center Antwerp (MICA), University of Antwerp, 2610 Antwerpen, Belgium
| | - Elsie Neo Seane
- Department of Medical Imaging and Therapeutic Sciences, Cape Peninsula University of Technology, Cape Town 7530, South Africa
| | - Thomas Ebenhan
- Pre-Clinical Imaging Facility (PCIF), (NuMeRI) NPC, Pretoria 0001, South Africa
- Department of Science and Technology/Preclinical Drug Development Platform (PCDDP), North West University, Potchefstroom 2520, South Africa
- Nuclear Medicine, University of Pretoria, Pretoria 0001, South Africa
| | - Ingeborg Goethals
- Department of Nuclear Medicine, Ghent University Hospital, 9000 Ghent, Belgium
| | - Julie Bolcaen
- Radiation Biophysics Division, SSC laboratory, iThemba LABS, Cape Town 7131, South Africa
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20
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Defining a Correlative Transcriptional Signature Associated with Bulk Histone H3 Acetylation Levels in Adult Glioblastomas. Cells 2023; 12:cells12030374. [PMID: 36766715 PMCID: PMC9913072 DOI: 10.3390/cells12030374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 01/11/2023] [Accepted: 01/16/2023] [Indexed: 01/21/2023] Open
Abstract
Glioblastoma (GB) is the most prevalent primary brain cancer and the most aggressive form of glioma because of its poor prognosis and high recurrence. To confirm the importance of epigenetics in glioma, we explored The Cancer Gene Atlas (TCGA) database and we found that several histone/DNA modifications and chromatin remodeling factors were affected at transcriptional and genetic levels in GB compared to lower-grade gliomas. We associated these alterations in our own cohort of study with a significant reduction in the bulk levels of acetylated lysines 9 and 14 of histone H3 in high-grade compared to low-grade tumors. Within GB, we performed an RNA-seq analysis between samples exhibiting the lowest and highest levels of acetylated H3 in the cohort; these results are in general concordance with the transcriptional changes obtained after histone deacetylase (HDAC) inhibition of GB-derived cultures that affected relevant genes in glioma biology and treatment (e.g., A2ML1, CD83, SLC17A7, TNFSF18). Overall, we identified a transcriptional signature linked to histone acetylation that was potentially associated with good prognosis, i.e., high overall survival and low rate of somatic mutations in epigenetically related genes in GB. Our study identifies lysine acetylation as a key defective histone modification in adult high-grade glioma, and offers novel insights regarding the use of HDAC inhibitors in therapy.
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21
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Gong L, Yin Y, Chen C, Wan Q, Xia D, Wang M, Pu Z, Zhang B, Zou J. Characterization of EGFR-reprogrammable temozolomide-resistant cells in a model of glioblastoma. Cell Death Dis 2022; 8:438. [PMID: 36316307 PMCID: PMC9622861 DOI: 10.1038/s41420-022-01230-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 10/18/2022] [Accepted: 10/19/2022] [Indexed: 11/15/2022]
Abstract
Temozolomide (TMZ) resistance is a major clinical challenge for glioblastoma (GBM). O6-methylguanine-DNA methyltransferase (MGMT) mediated DNA damage repair is a key mechanism for TMZ resistance. However, MGMT-null GBM patients remain resistant to TMZ, and the process for resistance evolution is largely unknown. Here, we developed an acquired TMZ resistant xenograft model using serial implantation of MGMT-hypermethylated U87 cells, allowing the extraction of stable, TMZ resistant (TMZ-R) tumors and primary cells. The derived tumors and cells exhibited stable multidrug resistance both in vitro and in vivo. Functional experiments, as well as single-cell RNA sequencing (scRNA-seq), indicated that TMZ treatment induced cellular heterogeneity including quiescent cancer stem cells (CSCs) in TMZ-R tumors. A subset of these were labeled by NES+/SOX2+/CADM1+ and demonstrated significant advantages for drug resistance. Further study revealed that Epidermal Growth Factor Receptor (EGFR) deficiency and diminished downstream signaling may confer this triple positive CSCs subgroup’s quiescent phenotypes and chemoresistance. Continuous EGF treatment improved the chemosensitivity of TMZ-R cells both in vitro and in vivo, mechanically reversing cell cycle arrest and reduced drug uptake. Further, EGF treatment of TMZ-R tumors favorably normalized the response to TMZ in combination therapy. Here, we characterize a unique subgroup of CSCs in MGMT-null experimental glioblastoma, identifying EGF + TMZ therapy as a potential strategy to overcome cellular quiescence and TMZ resistance, likely endowed by deficient EGFR signaling.
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Affiliation(s)
- Lingli Gong
- grid.89957.3a0000 0000 9255 8984Department of Laboratory Medicine, The Affiliated Wuxi People’s Hospital of Nanjing Medical University, Wuxi, 214023 China ,grid.89957.3a0000 0000 9255 8984Center of Clinical Research, The Affiliated Wuxi People’s Hospital of Nanjing Medical University, Wuxi, 214023 China
| | - Ying Yin
- grid.89957.3a0000 0000 9255 8984Department of Laboratory Medicine, The Affiliated Wuxi People’s Hospital of Nanjing Medical University, Wuxi, 214023 China ,grid.89957.3a0000 0000 9255 8984Center of Clinical Research, The Affiliated Wuxi People’s Hospital of Nanjing Medical University, Wuxi, 214023 China
| | - Cheng Chen
- grid.89957.3a0000 0000 9255 8984Department of Laboratory Medicine, The Affiliated Wuxi People’s Hospital of Nanjing Medical University, Wuxi, 214023 China ,grid.89957.3a0000 0000 9255 8984Center of Clinical Research, The Affiliated Wuxi People’s Hospital of Nanjing Medical University, Wuxi, 214023 China
| | - Quan Wan
- grid.89957.3a0000 0000 9255 8984Department of Neurosurgery, The Affiliated Wuxi Second Hospital of Nanjing Medical University, Wuxi, Jiangsu 214002 China
| | - Die Xia
- grid.89957.3a0000 0000 9255 8984Department of Laboratory Medicine, The Affiliated Wuxi People’s Hospital of Nanjing Medical University, Wuxi, 214023 China ,grid.89957.3a0000 0000 9255 8984Center of Clinical Research, The Affiliated Wuxi People’s Hospital of Nanjing Medical University, Wuxi, 214023 China
| | - Mei Wang
- grid.89957.3a0000 0000 9255 8984Department of Laboratory Medicine, The Affiliated Wuxi People’s Hospital of Nanjing Medical University, Wuxi, 214023 China ,grid.89957.3a0000 0000 9255 8984Center of Clinical Research, The Affiliated Wuxi People’s Hospital of Nanjing Medical University, Wuxi, 214023 China
| | - Zhening Pu
- grid.89957.3a0000 0000 9255 8984Department of Laboratory Medicine, The Affiliated Wuxi People’s Hospital of Nanjing Medical University, Wuxi, 214023 China ,grid.89957.3a0000 0000 9255 8984Center of Clinical Research, The Affiliated Wuxi People’s Hospital of Nanjing Medical University, Wuxi, 214023 China
| | - Bo Zhang
- grid.89957.3a0000 0000 9255 8984Department of Laboratory Medicine, The Affiliated Wuxi People’s Hospital of Nanjing Medical University, Wuxi, 214023 China ,grid.89957.3a0000 0000 9255 8984Center of Clinical Research, The Affiliated Wuxi People’s Hospital of Nanjing Medical University, Wuxi, 214023 China
| | - Jian Zou
- grid.89957.3a0000 0000 9255 8984Department of Laboratory Medicine, The Affiliated Wuxi People’s Hospital of Nanjing Medical University, Wuxi, 214023 China ,grid.89957.3a0000 0000 9255 8984Center of Clinical Research, The Affiliated Wuxi People’s Hospital of Nanjing Medical University, Wuxi, 214023 China
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22
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Di Ruscio V, Del Baldo G, Fabozzi F, Vinci M, Cacchione A, de Billy E, Megaro G, Carai A, Mastronuzzi A. Pediatric Diffuse Midline Gliomas: An Unfinished Puzzle. Diagnostics (Basel) 2022; 12:diagnostics12092064. [PMID: 36140466 PMCID: PMC9497626 DOI: 10.3390/diagnostics12092064] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 08/22/2022] [Indexed: 11/15/2022] Open
Abstract
Diffuse midline glioma (DMG) is a heterogeneous group of aggressive pediatric brain tumors with a fatal prognosis. The biological hallmark in the major part of the cases is H3K27 alteration. Prognosis remains poor, with median survival ranging from 9 to 12 months from diagnosis. Clinical and radiological prognostic factors only partially change the progression-free survival but they do not improve the overall survival. Despite efforts, there is currently no curative therapy for DMG. Radiotherapy remains the standard treatment with only transitory benefits. No chemotherapeutic regimens were found to significantly improve the prognosis. In the new era of a deeper integration between histological and molecular findings, potential new approaches are currently under investigation. The entire international scientific community is trying to target DMG on different aspects. The therapeutic strategies involve targeting epigenetic alterations, such as methylation and acetylation status, as well as identifying new molecular pathways that regulate oncogenic proliferation; immunotherapy approaches too are an interesting point of research in the oncology field, and the possibility of driving the immune system against tumor cells has currently been evaluated in several clinical trials, with promising preliminary results. Moreover, thanks to nanotechnology amelioration, the development of innovative delivery approaches to overcross a hostile tumor microenvironment and an almost intact blood–brain barrier could potentially change tumor responses to different treatments. In this review, we provide a comprehensive overview of available and potential new treatments that are worldwide under investigation, with the intent that patient- and tumor-specific treatment could change the biological inauspicious history of this disease.
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Affiliation(s)
- Valentina Di Ruscio
- Department of Onco-Hematology, Cell and Gene Therapies, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy
| | - Giada Del Baldo
- Department of Onco-Hematology, Cell and Gene Therapies, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy
| | - Francesco Fabozzi
- Department of Onco-Hematology, Cell and Gene Therapies, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy
- Department of Pediatrics, University of Rome Tor Vergata, 00165 Rome, Italy
| | - Maria Vinci
- Department of Onco-Hematology, Cell and Gene Therapies, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy
| | - Antonella Cacchione
- Department of Onco-Hematology, Cell and Gene Therapies, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy
| | - Emmanuel de Billy
- Department of Onco-Hematology, Cell and Gene Therapies, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy
| | - Giacomina Megaro
- Department of Onco-Hematology, Cell and Gene Therapies, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy
| | - Andrea Carai
- Neurosurgery Unit, Department of Neurosciences, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy
| | - Angela Mastronuzzi
- Department of Onco-Hematology, Cell and Gene Therapies, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy
- Faculty of Medicine and Surgery, Saint Camillus International University of Health Sciences, 00131 Rome, Italy
- Correspondence:
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23
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Immunogenic Cell Death Enhances Immunotherapy of Diffuse Intrinsic Pontine Glioma: From Preclinical to Clinical Studies. Pharmaceutics 2022; 14:pharmaceutics14091762. [PMID: 36145510 PMCID: PMC9502387 DOI: 10.3390/pharmaceutics14091762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/02/2022] [Accepted: 08/20/2022] [Indexed: 11/16/2022] Open
Abstract
Diffuse intrinsic pontine glioma (DIPG) is the most lethal tumor involving the pediatric central nervous system. The median survival of children that are diagnosed with DIPG is only 9 to 11 months. More than 200 clinical trials have failed to increase the survival outcomes using conventional cytotoxic or myeloablative chemotherapy. Immunotherapy presents exciting therapeutic opportunities against DIPG that is characterized by unique and heterogeneous features. However, the non-inflammatory DIPG microenvironment greatly limits the role of immunotherapy in DIPG. Encouragingly, the induction of immunogenic cell death, accompanied by the release of damage-associated molecular patterns (DAMPs) shows satisfactory efficacy of immune stimulation and antitumor strategies. This review dwells on the dilemma and advances in immunotherapy for DIPG, and the potential efficacy of immunogenic cell death (ICD) in the immunotherapy of DIPG.
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24
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Stackhouse CT, Anderson JC, Yue Z, Nguyen T, Eustace NJ, Langford CP, Wang J, Rowland JR, Xing C, Mikhail FM, Cui X, Alrefai H, Bash RE, Lee KJ, Yang ES, Hjelmeland AB, Miller CR, Chen JY, Gillespie GY, Willey CD. An in vivo model of glioblastoma radiation resistance identifies long non-coding RNAs and targetable kinases. JCI Insight 2022; 7:148717. [PMID: 35852875 PMCID: PMC9462495 DOI: 10.1172/jci.insight.148717] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 07/07/2022] [Indexed: 12/03/2022] Open
Abstract
Key molecular regulators of acquired radiation resistance in recurrent glioblastoma (GBM) are largely unknown, with a dearth of accurate preclinical models. To address this, we generated 8 GBM patient-derived xenograft (PDX) models of acquired radiation therapy–selected (RTS) resistance compared with same-patient, treatment-naive (radiation-sensitive, unselected; RTU) PDXs. These likely unique models mimic the longitudinal evolution of patient recurrent tumors following serial radiation therapy. Indeed, while whole-exome sequencing showed retention of major genomic alterations in the RTS lines, we did detect a chromosome 12q14 amplification that was associated with clinical GBM recurrence in 2 RTS models. A potentially novel bioinformatics pipeline was applied to analyze phenotypic, transcriptomic, and kinomic alterations, which identified long noncoding RNAs (lncRNAs) and targetable, PDX-specific kinases. We observed differential transcriptional enrichment of DNA damage repair pathways in our RTS models, which correlated with several lncRNAs. Global kinomic profiling separated RTU and RTS models, but pairwise analyses indicated that there are multiple molecular routes to acquired radiation resistance. RTS model–specific kinases were identified and targeted with clinically relevant small molecule inhibitors. This cohort of in vivo RTS patient-derived models will enable future preclinical therapeutic testing to help overcome the treatment resistance seen in patients with GBM.
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Affiliation(s)
| | | | - Zongliang Yue
- Informatics Institute, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA. Birmingham, Alabama, USA
| | - Thanh Nguyen
- Informatics Institute, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA. Birmingham, Alabama, USA
| | | | | | - Jelai Wang
- Informatics Institute, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA. Birmingham, Alabama, USA
| | - James R. Rowland
- Department of Physics, The Ohio State University, Columbus, Ohio, USA
| | | | - Fady M. Mikhail
- Department of Genetics, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Xiangqin Cui
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | | | - Ryan E. Bash
- Division of Neuropathology, Department of Pathology, and
| | | | | | - Anita B. Hjelmeland
- Department of Cell, Developmental, and Integrative Biology, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - C. Ryan Miller
- Division of Neuropathology, Department of Pathology, and
| | - Jake Y. Chen
- Informatics Institute, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA. Birmingham, Alabama, USA
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25
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Huang W, Hao Z, Mao F, Guo D. Small Molecule Inhibitors in Adult High-Grade Glioma: From the Past to the Future. Front Oncol 2022; 12:911876. [PMID: 35785151 PMCID: PMC9247310 DOI: 10.3389/fonc.2022.911876] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 05/13/2022] [Indexed: 12/12/2022] Open
Abstract
Glioblastoma is the most common primary malignant tumor in the brain and has a dismal prognosis despite patients accepting standard therapies. Alternation of genes and deregulation of proteins, such as receptor tyrosine kinase, PI3K/Akt, PKC, Ras/Raf/MEK, histone deacetylases, poly (ADP-ribose) polymerase (PARP), CDK4/6, branched-chain amino acid transaminase 1 (BCAT1), and Isocitrate dehydrogenase (IDH), play pivotal roles in the pathogenesis and progression of glioma. Simultaneously, the abnormalities change the cellular biological behavior and microenvironment of tumor cells. The differences between tumor cells and normal tissue become the vulnerability of tumor, which can be taken advantage of using targeted therapies. Small molecule inhibitors, as an important part of modern treatment for cancers, have shown significant efficacy in hematologic cancers and some solid tumors. To date, in glioblastoma, there have been more than 200 clinical trials completed or ongoing in which trial designers used small molecules as monotherapy or combination regimens to correct the abnormalities. In this review, we summarize the dysfunctional molecular mechanisms and highlight the outcomes of relevant clinical trials associated with small-molecule targeted therapies. Based on the outcomes, the main findings were that small-molecule inhibitors did not bring more benefit to newly diagnosed glioblastoma, but the clinical studies involving progressive glioblastoma usually claimed “noninferiority” compared with historical results. However, as to the clinical inferiority trial, similar dosing regimens should be avoided in future clinical trials.
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Affiliation(s)
- Wenda Huang
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhaonian Hao
- Department of Neurosurgery, Beijing TianTan Hospital, Capital Medical University, Beijing, China
| | - Feng Mao
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Dongsheng Guo, ; Feng Mao,
| | - Dongsheng Guo
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Dongsheng Guo, ; Feng Mao,
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26
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A predictive microfluidic model of human glioblastoma to assess trafficking of blood-brain barrier-penetrant nanoparticles. Proc Natl Acad Sci U S A 2022; 119:e2118697119. [PMID: 35648828 PMCID: PMC9191661 DOI: 10.1073/pnas.2118697119] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
The blood–brain barrier represents a significant challenge for the treatment of high-grade gliomas, and our understanding of drug transport across this critical biointerface remains limited. To advance preclinical therapeutic development for gliomas, there is an urgent need for predictive in vitro models with realistic blood–brain-barrier vasculature. Here, we report a vascularized human glioblastoma multiforme (GBM) model in a microfluidic device that accurately recapitulates brain tumor vasculature with self-assembled endothelial cells, astrocytes, and pericytes to investigate the transport of targeted nanotherapeutics across the blood–brain barrier and into GBM cells. Using modular layer-by-layer assembly, we functionalized the surface of nanoparticles with GBM-targeting motifs to improve trafficking to tumors. We directly compared nanoparticle transport in our in vitro platform with transport across mouse brain capillaries using intravital imaging, validating the ability of the platform to model in vivo blood–brain-barrier transport. We investigated the therapeutic potential of functionalized nanoparticles by encapsulating cisplatin and showed improved efficacy of these GBM-targeted nanoparticles both in vitro and in an in vivo orthotopic xenograft model. Our vascularized GBM model represents a significant biomaterials advance, enabling in-depth investigation of brain tumor vasculature and accelerating the development of targeted nanotherapeutics.
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Daniel P, Meehan B, Sabri S, Jamali F, Sarkaria JN, Choi DS, Garnier D, Kitange G, Glennon KI, Paccard A, Karamchandani J, Riazalhosseini Y, Rak J, Abdulkarim B. Detection of Temozolomide-Induced Hypermutation and Response to PD-1 Checkpoint Inhibitor In Recurrent Glioblastoma. Neurooncol Adv 2022; 4:vdac076. [PMID: 35795471 PMCID: PMC9252128 DOI: 10.1093/noajnl/vdac076] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background Despite aggressive upfront treatment in glioblastoma (GBM), recurrence remains inevitable for most patients. Accumulating evidence has identified hypermutation induced by temozolomide (TMZ) as an emerging subtype of recurrent GBM. However, its biological and therapeutic significance has yet to be described. Methods We combined GBM patient and derive GBM stem cells (GSCs) from tumors following TMZ to explore response of hypermutant and non-hypermutant emergent phenotypes and explore the immune relevance of hypermutant and non-hypermutant states in vivo. Results Hypermutation emerges as one of two possible mutational subtypes following TMZ treatment in vivo and demonstrates distinct phenotypic features compared to non-hypermutant recurrent GBM. Hypermutant tumors elicited robust immune rejection in subcutaneous contexts which was accompanied by increased immune cell infiltration. In contrast, immune rejection of hypermutant tumors were stunted in orthotopic settings where we observe limited immune infiltration. Use of anti-PD-1 immunotherapy showed that immunosuppression in orthotopic contexts was independent from the PD-1/PD-L1 axis. Finally, we demonstrate that mutational burden can be estimated from DNA contained in extracellular vesicles (EVs). Conclusion Hypermutation post-TMZ are phenotypically distinct from non-hypermutant GBM and requires personalization for appropriate treatment. The brain microenvironment may be immunosuppressive and exploration of the mechanisms behind this may be key to improving immunotherapy response in this subtype of recurrent GBM.
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Affiliation(s)
- Paul Daniel
- McGill University, Research Institute of the McGill University Health Centre (Research Institute-MUHC), Montreal, Canada
| | - Brian Meehan
- McGill University, Research Institute of the McGill University Health Centre (Research Institute-MUHC), Montreal, Canada
| | - Siham Sabri
- McGill University, Research Institute of the McGill University Health Centre (Research Institute-MUHC), Montreal, Canada
| | - Fatemeh Jamali
- McGill University, Research Institute of the McGill University Health Centre (Research Institute-MUHC), Montreal, Canada
| | | | - Dong-sic Choi
- McGill University, Research Institute of the McGill University Health Centre (Research Institute-MUHC), Montreal, Canada
| | - Delphine Garnier
- McGill University, Research Institute of the McGill University Health Centre (Research Institute-MUHC), Montreal, Canada
| | | | | | | | - Jason Karamchandani
- McGill University, Research Institute of the McGill University Health Centre (Research Institute-MUHC), Montreal, Canada
| | | | - Janusz Rak
- McGill University, Research Institute of the McGill University Health Centre (Research Institute-MUHC), Montreal, Canada
| | - Bassam Abdulkarim
- McGill University, Research Institute of the McGill University Health Centre (Research Institute-MUHC), Montreal, Canada
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Mladek AC, Yan H, Tian S, Decker PA, Burgenske DM, Bakken K, Hu Z, He L, Connors MA, Carlson BL, Wilson J, Bommi-Reddy A, Conery A, Eckel-Passow JE, Sarkaria JN, Kitange GJ. RBBP4-p300 axis modulates expression of genes essential for cell survival and is a potential target for therapy in glioblastoma. Neuro Oncol 2022; 24:1261-1272. [PMID: 35231103 PMCID: PMC9340617 DOI: 10.1093/neuonc/noac051] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND RBBP4 activates transcription by histone acetylation, but the partner histone acetyltransferases are unknown. Thus, we investigated the hypothesis that RBBP4 interacts with p300 in a complex in glioblastoma (GBM). METHODS shRNA silencing of RBBP4 or p300 and RNAseq was used to identify genes co-regulated by RBBP4 and p300 in GBM43 patient-derived xenograft (PDX). RBBP4/p300 complex was demonstrated using proximity ligation assay (PLA) and ChIPseq delineated histone H3 acetylation and RBBP4/p300 complex binding in promoters/enhancers. Temozolomide (TMZ)-induced DNA double strand breaks (DSBs) were evaluated by γ-H2AX and proliferation by CyQuant and live cell monitoring assays. In vivo efficacy was based on survival of mice with orthotopic tumors. RESULTS shRBBP4 and shp300 downregulated 4768 genes among which 1485 (31%) were commonly downregulated by both shRNAs, while upregulated genes were 2484, including 863 (35%) common genes. The pro-survival genes were the top-ranked among the downregulated genes, including C-MYC. RBBP4/p300 complex was demonstrated in the nucleus, and shRBBP4 or shp300 significantly sensitized GBM cells to TMZ compared to the control shNT in vitro (P < .05). Moreover, TMZ significantly prolonged the survival of mice bearing GBM22-shRBBP4 orthotopic tumors compared with control shNT tumors (median shNT survival 52 days vs. median shRBBP4 319 days; P = .001). CREB-binding protein (CBP)/p300 inhibitor CPI-1612 suppressed H3K27Ac and RBBP4/p300 complex target proteins, including C-MYC, and synergistically sensitized TMZ in vitro. Pharmacodynamic evaluation confirmed brain penetration by CPI-1612 supporting further investigation to evaluate efficacy to sensitize TMZ. CONCLUSIONS RBBP4/p300 complex is present in GBM cells and is a potential therapeutic target.
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Affiliation(s)
- Ann C Mladek
- Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota, USA
| | - Huihuang Yan
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, Minnesota, USA
| | - Shulan Tian
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, Minnesota, USA
| | - Paul A Decker
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Katrina Bakken
- Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota, USA
| | - Zeng Hu
- Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota, USA
| | - Lihong He
- Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota, USA
| | - Margaret A Connors
- Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota, USA
| | - Brett L Carlson
- Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota, USA
| | - Jonathan Wilson
- Constellation Pharmaceuticals, Cambridge, Massachusetts, USA
| | | | - Andy Conery
- Constellation Pharmaceuticals, Cambridge, Massachusetts, USA
| | | | - Jann N Sarkaria
- Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota, USA
| | - Gaspar J Kitange
- Corresponding Author: Gaspar J. Kitange, MD, PhD, Department of Radiation Oncology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA (/)
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Zhao J, Jin W, Yi K, Wang Q, Zhou J, Tan Y, Xu C, Xiao M, Hong B, Xu F, Zhang K, Kang C. Combination LSD1 and HOTAIR-EZH2 inhibition disrupts cell cycle processes and induces apoptosis in glioblastoma cells. Pharmacol Res 2021; 171:105764. [PMID: 34246782 DOI: 10.1016/j.phrs.2021.105764] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 07/04/2021] [Accepted: 07/06/2021] [Indexed: 12/29/2022]
Abstract
Glioblastoma (GBM) is the most common primary central nervous system tumor and has a poor prognosis, with a median survival time of only 14 months from diagnosis. Abnormally expressed long noncoding RNAs (lncRNAs) are important epigenetic regulators of chromatin modification and gene expression regulation in tumors, including GBM. We previously showed that the lncRNA HOTAIR is related to the cell cycle progression and can be used as an independent predictor in GBM. Lysine-specific demethylase 1 (LSD1), binding to 3' domain of HOTAIR, specifically removes mono- and di-methyl marks from H3 lysine 4 (H3K4) and plays key roles during carcinogenesis. In this study, we combined a HOTAIR-EZH2 disrupting agent and an LSD1 inhibitor, AC1Q3QWB (AQB) and GSK-LSD1, respectively, to block the two functional domains of HOTAIR and potentially provide therapeutic benefit in the treatment of GBM. Using an Agilent Human ceRNA Microarray, we identified tumor suppressor genes upregulated by AQB and GSK-LSD1, followed by Chromatin immunoprecipitation (ChIP) assays to explore the epigenetic mechanisms of genes activation. Microarray analysis showed that AQB and GSK-LSD1 regulate cell cycle processes and induces apoptosis in GBM cell lines. Furthermore, we found that the combination of AQB and GSK-LSD1 showed a powerful effect of inhibiting cell cycle processes by targeting CDKN1A, whereas apoptosis promoting effects of combination therapy were mediated by BBC3 in vitro. ChIP assays revealed that GSK-LSD1 and AQB regulate P21 and PUMA, respectively via upregulating H3K4me2 and downregulating H3K27me3. Combination therapy with AQB and GSK-LSD1 on tumor malignancy in vitro and GBM patient-derived xenograft (PDX) models shows enhanced anti-tumor efficacy and appears to be a promising new strategy for GBM treatment through its effects on epigenetic regulation.
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Affiliation(s)
- Jixing Zhao
- Department of Neurosurgery, Tianjin Medical University General Hospital, Laboratory of Neuro-oncology, Tianjin Neurological Institute, Key Laboratory of Post-Neurotrauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, China
| | - Weili Jin
- Department of Neurosurgery, Tianjin Medical University General Hospital, Laboratory of Neuro-oncology, Tianjin Neurological Institute, Key Laboratory of Post-Neurotrauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, China
| | - Kaikai Yi
- Department of Neurosurgery, Tianjin Medical University General Hospital, Laboratory of Neuro-oncology, Tianjin Neurological Institute, Key Laboratory of Post-Neurotrauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, China
| | - Qixue Wang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Laboratory of Neuro-oncology, Tianjin Neurological Institute, Key Laboratory of Post-Neurotrauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, China
| | - Junhu Zhou
- Department of Neurosurgery, Tianjin Medical University General Hospital, Laboratory of Neuro-oncology, Tianjin Neurological Institute, Key Laboratory of Post-Neurotrauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, China
| | - Yanli Tan
- Department of Pathology, Affiliated Hospital of Hebei University, Baoding 071000, China
| | - Can Xu
- Department of Neurosurgery, Affiliated Hospital of Hebei University, Baoding 071000, China
| | - Menglin Xiao
- Department of Neurosurgery, Affiliated Hospital of Hebei University, Baoding 071000, China
| | - Biao Hong
- Department of Neurosurgery, Tianjin Medical University General Hospital, Laboratory of Neuro-oncology, Tianjin Neurological Institute, Key Laboratory of Post-Neurotrauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, China
| | - Fenfen Xu
- Department of Pediatrics, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250013, Shandong, China
| | - Kailiang Zhang
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan 250012, Shandong, China.
| | - Chunsheng Kang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Laboratory of Neuro-oncology, Tianjin Neurological Institute, Key Laboratory of Post-Neurotrauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, China.
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Li F, Chen S, Yu J, Gao Z, Sun Z, Yi Y, Long T, Zhang C, Li Y, Pan Y, Qin C, Long W, Liu Q, Zhao W. Interplay of m 6 A and histone modifications contributes to temozolomide resistance in glioblastoma. Clin Transl Med 2021; 11:e553. [PMID: 34586728 PMCID: PMC8441140 DOI: 10.1002/ctm2.553] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 08/08/2021] [Accepted: 08/12/2021] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND Despite the development of new treatment protocols for glioblastoma (GBM), temozolomide (TMZ) resistance remains a primary hindrance. Previous studies, including our study, have shown that aberrant N6-methyladenosine (m6 A) modification is implicated in GBM pathobiology. However, the roles and precise mechanisms of m6 A modification in the regulation of TMZ resistance in GBM remain unclear. METHODS m6 A individual-nucleotide-resolution cross-linking and immunoprecipitation sequencing (miCLIP-seq) was performed to identify m6 A modification of transcripts in TMZ-resistant and -sensitive tumors. To explore the role of METTL3 in TMZ resistance, TMZ-resistant GBM cells were transfected with METTL3 shRNA or overexpression lentivirus and then assessed by cell viability, tumor sphere formation, and apoptosis assays. An intracranial GBM xenograft model was developed to verify the effect of METTL3 depletion during TMZ treatment in vivo. ATAC-seq, ChIP-qPCR, and dual-luciferase reporter assays were carried out to verify the role of SOX4/EZH2 in the modulation of METTL3 expression upon TMZ treatment. RESULTS We demonstrated that TMZ treatment upregulated the expression of the m6 A methyltransferase METTL3, thereby increasing m6 A modification of histone modification-related gene transcripts. METTL3 is required to maintain the features of GBM stem cells. When combined with TMZ, METTL3 silencing suppressed orthotopic TMZ-resistant xenograft growth in a cooperative manner. Mechanistically, TMZ induced a SOX4-mediated increase in chromatin accessibility at the METTL3 locus by promoting H3K27ac levels and recruiting RNA polymerase II. Moreover, METTL3 depletion affected the deposition of m6 A on histone modification-related gene transcripts, such as EZH2, leading to nonsense-mediated mRNA decay. We revealed an important role of EZH2 in the regulation of METTL3 expression, which was via an H3K27me3 modification-independent manner. CONCLUSIONS Our findings uncover the fundamental mechanisms underlying the interplay of m6 A RNA modification and histone modification in TMZ resistance and emphasize the therapeutic potential of targeting the SOX4/EZH2/METTL3 axis in the treatment of TMZ-resistant GBM.
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Affiliation(s)
- Fuxi Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic CenterSun Yat‐sen UniversityGuangzhouChina
- Guangdong Provincial People's HospitalGuangdong Academy of Medical SciencesGuangzhouChina
- Key Laboratory of Stem Cells and Tissue Engineering, Sun Yat‐Sen University, Ministry of EducationGuangzhouChina
| | - Siyun Chen
- Key Laboratory of Stem Cells and Tissue Engineering, Sun Yat‐Sen University, Ministry of EducationGuangzhouChina
| | - Jiaming Yu
- Key Laboratory of Stem Cells and Tissue Engineering, Sun Yat‐Sen University, Ministry of EducationGuangzhouChina
| | - Zhuoxing Gao
- Guangdong Provincial People's HospitalGuangdong Academy of Medical SciencesGuangzhouChina
| | - Zhangyi Sun
- Key Laboratory of Stem Cells and Tissue Engineering, Sun Yat‐Sen University, Ministry of EducationGuangzhouChina
| | - Yang Yi
- Key Laboratory of Stem Cells and Tissue Engineering, Sun Yat‐Sen University, Ministry of EducationGuangzhouChina
| | - Teng Long
- Key Laboratory of Stem Cells and Tissue Engineering, Sun Yat‐Sen University, Ministry of EducationGuangzhouChina
| | - Chuanxia Zhang
- Guangdong Provincial People's HospitalGuangdong Academy of Medical SciencesGuangzhouChina
| | - Yuzhe Li
- Neurosurgery Department, Xiangya HospitalCentral South UniversityChangshaChina
| | - Yimin Pan
- Neurosurgery Department, Xiangya HospitalCentral South UniversityChangshaChina
| | - Chaoying Qin
- Neurosurgery Department, Xiangya HospitalCentral South UniversityChangshaChina
| | - Wenyong Long
- Neurosurgery Department, Xiangya HospitalCentral South UniversityChangshaChina
| | - Qing Liu
- Neurosurgery Department, Xiangya HospitalCentral South UniversityChangshaChina
| | - Wei Zhao
- Guangdong Provincial People's HospitalGuangdong Academy of Medical SciencesGuangzhouChina
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Saini A, Gallo JM. Epigenetic instability may alter cell state transitions and anticancer drug resistance. PLoS Comput Biol 2021; 17:e1009307. [PMID: 34424912 PMCID: PMC8412323 DOI: 10.1371/journal.pcbi.1009307] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 09/02/2021] [Accepted: 07/26/2021] [Indexed: 01/22/2023] Open
Abstract
Drug resistance is a significant obstacle to successful and durable anti-cancer therapy. Targeted therapy is often effective during early phases of treatment; however, eventually cancer cells adapt and transition to drug-resistant cells states rendering the treatment ineffective. It is proposed that cell state can be a determinant of drug efficacy and manipulated to affect the development of anticancer drug resistance. In this work, we developed two stochastic cell state models and an integrated stochastic-deterministic model referenced to brain tumors. The stochastic cell state models included transcriptionally-permissive and -restrictive states based on the underlying hypothesis that epigenetic instability mitigates lock-in of drug-resistant states. When moderate epigenetic instability was implemented the drug-resistant cell populations were reduced, on average, by 60%, whereas a high level of epigenetic disruption reduced them by about 90%. The stochastic-deterministic model utilized the stochastic cell state model to drive the dynamics of the DNA repair enzyme, methylguanine-methyltransferase (MGMT), that repairs temozolomide (TMZ)-induced O6-methylguanine (O6mG) adducts. In the presence of epigenetic instability, the production of MGMT decreased that coincided with an increase of O6mG adducts following a multiple-dose regimen of TMZ. Generation of epigenetic instability via epigenetic modifier therapy could be a viable strategy to mitigate anticancer drug resistance.
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Affiliation(s)
- Anshul Saini
- Department of Pharmaceutical Sciences, University at Buffalo, Buffalo, New York, United States of America
| | - James M. Gallo
- Department of Pharmaceutical Sciences, University at Buffalo, Buffalo, New York, United States of America
- * E-mail:
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Chromatin insulation dynamics in glioblastoma: challenges and future perspectives of precision oncology. Clin Epigenetics 2021; 13:150. [PMID: 34332627 PMCID: PMC8325855 DOI: 10.1186/s13148-021-01139-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Accepted: 07/23/2021] [Indexed: 12/13/2022] Open
Abstract
Glioblastoma (GBM) is the most aggressive primary brain tumor, having a poor prognosis and a median overall survival of less than two years. Over the last decade, numerous findings regarding the distinct molecular and genetic profiles of GBM have led to the emergence of several therapeutic approaches. Unfortunately, none of them has proven to be effective against GBM progression and recurrence. Epigenetic mechanisms underlying GBM tumor biology, including histone modifications, DNA methylation, and chromatin architecture, have become an attractive target for novel drug discovery strategies. Alterations on chromatin insulator elements (IEs) might lead to aberrant chromatin remodeling via DNA loop formation, causing oncogene reactivation in several types of cancer, including GBM. Importantly, it is shown that mutations affecting the isocitrate dehydrogenase (IDH) 1 and 2 genes, one of the most frequent genetic alterations in gliomas, lead to genome-wide DNA hypermethylation and the consequent IE dysfunction. The relevance of IEs has also been observed in a small population of cancer stem cells known as glioma stem cells (GSCs), which are thought to participate in GBM tumor initiation and drug resistance. Recent studies revealed that epigenomic alterations, specifically chromatin insulation and DNA loop formation, play a crucial role in establishing and maintaining the GSC transcriptional program. This review focuses on the relevance of IEs in GBM biology and their implementation as a potential theranostic target to stratify GBM patients and develop novel therapeutic approaches. We will also discuss the state-of-the-art emerging technologies using big data analysis and how they will settle the bases on future diagnosis and treatment strategies in GBM patients.
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Martinez-Useros J, Martin-Galan M, Florez-Cespedes M, Garcia-Foncillas J. Epigenetics of Most Aggressive Solid Tumors: Pathways, Targets and Treatments. Cancers (Basel) 2021; 13:3209. [PMID: 34198989 PMCID: PMC8267921 DOI: 10.3390/cancers13133209] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 06/22/2021] [Accepted: 06/24/2021] [Indexed: 02/06/2023] Open
Abstract
Highly aggressive tumors are characterized by a highly invasive phenotype, and they display chemoresistance. Furthermore, some of the tumors lack expression of biomarkers for target therapies. This is the case of small-cell lung cancer, triple-negative breast cancer, pancreatic ductal adenocarcinoma, glioblastoma, metastatic melanoma, and advanced ovarian cancer. Unfortunately, these patients show a low survival rate and most of the available drugs are ineffective. In this context, epigenetic modifications have emerged to provide the causes and potential treatments for such types of tumors. Methylation and hydroxymethylation of DNA, and histone modifications, are the most common targets of epigenetic therapy, to influence gene expression without altering the DNA sequence. These modifications could impact both oncogenes and tumor suppressor factors, which influence several molecular pathways such as epithelial-to-mesenchymal transition, WNT/β-catenin, PI3K-mTOR, MAPK, or mismatch repair machinery. However, epigenetic changes are inducible and reversible events that could be influenced by some environmental conditions, such as UV exposure, smoking habit, or diet. Changes in DNA methylation status and/or histone modification, such as acetylation, methylation or phosphorylation, among others, are the most important targets for epigenetic cancer therapy. Therefore, the present review aims to compile the basic information of epigenetic modifications, pathways and factors, and provide a rationale for the research and treatment of highly aggressive tumors with epigenetic drugs.
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Affiliation(s)
- Javier Martinez-Useros
- Translational Oncology Division, OncoHealth Institute, Fundacion Jimenez Diaz University Hospital, Avenida Reyes Catolicos 2, 28040 Madrid, Spain;
| | - Mario Martin-Galan
- Translational Oncology Division, OncoHealth Institute, Fundacion Jimenez Diaz University Hospital, Avenida Reyes Catolicos 2, 28040 Madrid, Spain;
| | | | - Jesus Garcia-Foncillas
- Translational Oncology Division, OncoHealth Institute, Fundacion Jimenez Diaz University Hospital, Avenida Reyes Catolicos 2, 28040 Madrid, Spain;
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Bacolod MD, Barany F. MGMT Epigenetics: The Influence of Gene Body Methylation and Other Insights Derived from Integrated Methylomic, Transcriptomic, and Chromatin Analyses in Various Cancer Types. Curr Cancer Drug Targets 2021; 21:360-374. [PMID: 33535955 DOI: 10.2174/1568009621666210203111620] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 12/03/2020] [Accepted: 12/03/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND MGMT (O6-methylguanine-DNA methyltransferase) is primarily responsible for limiting the activity of some widely used chemotherapeutic agents, including temozolomide (TMZ) and carmustine (BCNU). The gene encoding this protein is epigenetically regulated, and assessment of methylation at its promoter region is used to predict glioma patients' response to TMZ. METHODS In this report, we employed a bioinformatic approach to elucidate MGMT's epigenetic regulation. Integrated for the analysis were genome-wide methylation and transcription datasets for > 8,600 human tissue (representing 31 distinct cancer types) and 500 human cancer cell line samples. Also crucial to the interpretation of results were publicly available data from the ENCODE Project: tracks for histone modifications (via ChIP-seq) and DNase I hypersensitivity (via DNaseseq), as well as methylation and transcription data for representative cell lines (HeLa-S3, HMEC, K562). RESULTS AND DISCUSSION We were able to validate (perhaps more comprehensively) the contrasting influences of CpG methylation at promoter region and at gene body on MGMT transcription. While the MGMT promoter is populated by CpG sites whose methylation levels displayed high negative correlation (R) with MGMT mRNA counts, the gene body harbors CpG sites exhibiting high positive R values. The promoter CpG sites with very high negative R's across cancer types include cg12981137, cg12434587, and cg00618725. Among the notable gene body CpG sites (high positive R's across cancer types) are cg00198994 (Intron 1), cg04473030 (Intron 2), and cg07367735 (Intron 4). For certain cancer types, such as melanoma, gene body methylation appears to be a better predictor of MGMT transcription (compared to promoter methylation). In general, the CpG methylation v. MGMT expression R values are higher in cell lines relative to tissues. Also, these correlations are noticeably more prominent in certain cancer types such as colorectal, adrenocortical, esophageal, skin, and head and neck cancers, as well as glioblastoma. As expected, hypomethylation at the promoter region is associated with more open chromatin, and enrichment of histone marks H3K4m1, H3K4m2, H3K4m3, and H3K9ac. CONCLUSION Overall, our analysis illustrated the contrasting influence of promoter and gene body methylation on MGMT expression. These observations may help improve diagnostic assays for MGMT.
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Affiliation(s)
- Manny D Bacolod
- Department of Microbiology and Immunology, Weill Cornell Medicine, 1300 York Ave, New York, NY 10065, United States
| | - Francis Barany
- Department of Microbiology and Immunology, Weill Cornell Medicine, 1300 York Ave, New York, NY 10065, United States
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Wei X, Xiao B, Wang L, Zang L, Che F. Potential new targets and drugs related to histone modifications in glioma treatment. Bioorg Chem 2021; 112:104942. [PMID: 33965781 DOI: 10.1016/j.bioorg.2021.104942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 04/19/2021] [Accepted: 04/20/2021] [Indexed: 02/07/2023]
Abstract
Glioma accounts for 40-50% of craniocerebral tumors, whose outcome rarely improves after standard treatment. The development of new therapeutic targets for glioma treatment has important clinical significance. With the deepening of research on gliomas, recent researchers have found that the occurrence and development of gliomas is closely associated with histone modifications, including methylation, acetylation, phosphorylation, and ubiquitination. Additionally, evidence has confirmed the close relationship between histone modifications and temozolomide (TMZ) resistance. Therefore, histone modification-related proteins have been widely recognized as new therapeutic targets for glioma treatment. In this review, we summarize the potential histone modification-associated targets and related drugs for glioma treatment. We have further clarified how histone modifications regulate the pathogenesis of gliomas and the mechanism of drug action, providing novel insights for the current clinical glioma treatment. Herein, we have also highlighted the limitations of current clinical therapies and have suggested future research directions and expected advances in potential areas of disease prognosis. Due to the complicated glioma pathogenesis, in the present review, we have acknowledged the limitations of histone modification applications in the related clinical treatment.
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Affiliation(s)
- Xiuhong Wei
- Graduate School, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, China; Department of Neurology, Linyi People's Hospital, Shandong University, Linyi, Shandong, China
| | - Bolian Xiao
- Central Laboratory, Linyi People's Hospital, Shandong University, Linyi, Shandong, China; Key Laboratory of Neurophysiology, Key Laboratory of Tumor Biology, Linyi, Shandong, China
| | - Liying Wang
- Department of Neurology, Linyi People's Hospital, Shandong University, Linyi, Shandong, China; Department of Neurology, the Clinical Medical College of Weifang Medical College, Weifang, Shandong, China
| | - Lanlan Zang
- Central Laboratory, Linyi People's Hospital, Shandong University, Linyi, Shandong, China; Key Laboratory of Neurophysiology, Key Laboratory of Tumor Biology, Linyi, Shandong, China; Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, China.
| | - Fengyuan Che
- Graduate School, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, China; Department of Neurology, Linyi People's Hospital, Shandong University, Linyi, Shandong, China; Central Laboratory, Linyi People's Hospital, Shandong University, Linyi, Shandong, China; Key Laboratory of Neurophysiology, Key Laboratory of Tumor Biology, Linyi, Shandong, China.
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Lv W, Li Q, Jia B, He Y, Ru Y, Guo Q, Li X, Lin W. Differentiated embryonic chondrocyte-expressed gene 1 promotes temozolomide resistance by modulating the SP1-MGMT axis in glioblastoma. Am J Transl Res 2021; 13:2331-2349. [PMID: 34017393 PMCID: PMC8129344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 12/27/2020] [Indexed: 06/12/2023]
Abstract
Glioblastoma multiforme (GBM) is a malignant brain tumor with a high mortality rate and poor prognosis. Temozolomide (TMZ) is a first-line drug against GBM, but resistance limits its use. We previously reported that differentiated embryonic chondrocyte (DEC1) expression is associated with TMZ resistance and poor prognosis in GBM; however, the underlying mechanism remains unclear. By using glioma cell lines with stably overexpressed or silenced DEC1, we examined the effects of DEC1 on TMZ sensitivity using proliferation assays, Western blotting, and flow cytometry. We demonstrated that DEC1 overexpression suppressed, whereas DEC1 knockdown enhanced, TMZ-induced cell apoptosis in methylguanine methyltransferase (MGMT)-positive T98G and LN18 cells but not in MGMT-negative U251 cells. Mechanistically, DEC1 positively regulated MGMT through specificity protein 1 (SP1). MGMT silencing in DEC1-overexpressing cells or overexpression in DEC1-silenced cells abrogated DEC1's effects on TMZ sensitivity, and siRNA-mediated SP1 knockdown phenocopied TMZ sensitivity, which was rescued by MGMT overexpression. Thus, DEC1 may control TMZ resistance via the SP1-MGMT axis. Immunohistochemical staining of the human glioma tissue microarray revealed that the expression levels of DEC1 and MGMT were correlated. Therefore, DEC1 expression has a predictive value for TMZ resistance and poor outcome in glioma patients, and is a novel therapeutic target in TMZ-resistant glioma.
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Affiliation(s)
- Weifeng Lv
- Department of Neurosurgery, Xijing Hospital, Air Force Medical UniversityXi’an 710032, Shaanxi, China
| | - Qi Li
- The Air Force Hospital from Northern Theater of PLAShenyang 110000, China
| | - Bo Jia
- Department of Neurosurgery, Xijing Hospital, Air Force Medical UniversityXi’an 710032, Shaanxi, China
| | - Yalong He
- Department of Neurosurgery, Xijing Hospital, Air Force Medical UniversityXi’an 710032, Shaanxi, China
| | - Yi Ru
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Air Force Medical UniversityXi’an 710032, Shaanxi, China
| | - Qingdong Guo
- Department of Neurosurgery, Xijing Hospital, Air Force Medical UniversityXi’an 710032, Shaanxi, China
| | - Xia Li
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Air Force Medical UniversityXi’an 710032, Shaanxi, China
| | - Wei Lin
- Department of Neurosurgery, Xijing Hospital, Air Force Medical UniversityXi’an 710032, Shaanxi, China
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Lasri A, Sturrock M. The influence of methylation status on a stochastic model of MGMT dynamics in glioblastoma: Phenotypic selection can occur with and without a downshift in promoter methylation status. J Theor Biol 2021; 521:110662. [PMID: 33684406 DOI: 10.1016/j.jtbi.2021.110662] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 02/26/2021] [Accepted: 03/01/2021] [Indexed: 01/02/2023]
Abstract
Glioblastoma originates in the brain and is one of the most aggressive cancer types. Glioblastoma represents 15% of all brain tumours, with a median survival of 15 months. Although the current standard of care for such a tumour (the Stupp protocol) has shown positive results for the prognosis of patients, O-6-methylguanine-DNA methyltransferase (MGMT) driven drug resistance has been an issue of increasing concern and hence requires innovative approaches. In addition to the well established drug resistance factors such as tumour location and blood brain barriers, it is also important to understand how the genetic and epigenetic dynamics of the glioblastoma cells can play a role. One important aspect of this is the study of methylation status of MGMT following administration of temozolomide. In this paper, we extend our previously published model that simulated MGMT expression in glioblastoma cells to incorporate the promoter methylation status of MGMT. This methylation status has clinical significance and is used as a marker for patient outcomes. Using this model, we investigate the causative relationship between temozolomide treatment and the methylation status of the MGMT promoter in a population of cells. In addition by constraining the model to relevant biological data using Approximate Bayesian Computation, we were able to identify parameter regimes that yield different possible modes of resistances, namely, phenotypic selection of MGMT, a downshift in the methylation status of the MGMT promoter or both simultaneously. We analysed each of the parameter sets associated with the different modes of resistance, presenting representative solutions as well as discovering some similarities between them as well as unique requirements for each of them. Finally, we used them to devise optimal strategies for inhibiting MGMT expression with the aim of minimising live glioblastoma cell numbers.
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Affiliation(s)
- Ayoub Lasri
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, York house, Dublin, Ireland.
| | - Marc Sturrock
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, York house, Dublin, Ireland
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Goenka A, Tiek D, Song X, Huang T, Hu B, Cheng SY. The Many Facets of Therapy Resistance and Tumor Recurrence in Glioblastoma. Cells 2021; 10:cells10030484. [PMID: 33668200 PMCID: PMC7995978 DOI: 10.3390/cells10030484] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 02/19/2021] [Accepted: 02/19/2021] [Indexed: 12/14/2022] Open
Abstract
Glioblastoma (GBM) is the most lethal type of primary brain cancer. Standard care using chemo- and radio-therapy modestly increases the overall survival of patients; however, recurrence is inevitable, due to treatment resistance and lack of response to targeted therapies. GBM therapy resistance has been attributed to several extrinsic and intrinsic factors which affect the dynamics of tumor evolution and physiology thus creating clinical challenges. Tumor-intrinsic factors such as tumor heterogeneity, hypermutation, altered metabolomics and oncologically activated alternative splicing pathways change the tumor landscape to facilitate therapy failure and tumor progression. Moreover, tumor-extrinsic factors such as hypoxia and an immune-suppressive tumor microenvironment (TME) are the chief causes of immunotherapy failure in GBM. Amid the success of immunotherapy in other cancers, GBM has occurred as a model of resistance, thus focusing current efforts on not only alleviating the immunotolerance but also evading the escape mechanisms of tumor cells to therapy, caused by inter- and intra-tumoral heterogeneity. Here we review the various mechanisms of therapy resistance in GBM, caused by the continuously evolving tumor dynamics as well as the complex TME, which cumulatively contribute to GBM malignancy and therapy failure; in an attempt to understand and identify effective therapies for recurrent GBM.
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Affiliation(s)
| | | | | | | | | | - Shi-Yuan Cheng
- Correspondence: ; Tel.: +1-312-503-3043; Fax: +1-312-503-5603
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施 林, 李 宏, 辜 俊, 宋 憧, 李 俊, 陈 磊, 周 强, 漆 松, 陆 云. [Establishment of a mouse model bearing orthotopic temozolomide-resistant glioma]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2021; 41:69-74. [PMID: 33509755 PMCID: PMC7867486 DOI: 10.12122/j.issn.1673-4254.2021.01.09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To establish a mouse model bearing orthotopic temozolomide (TMZ)-resistant glioma that mimics the development of drug resistance in gliomas in vivo. METHODS Seventy-eight adult C57BL/6 mice were randomly divided into 6 groups (n=13), including 3 TMZ induced groups with low, medium and high doses (5, 25, and 50 mg/kg, respectively) and 3 control groups. In each group, 5 mice were used for evaluating tumor size, 5 for observing survival, and 3 for collecting tumor tissues for primary cell culture. In low-dose TMZ induced group, 3 mice bearing orthotopic murine glioma GL261 cell xenografts received intraperitoneal injections of 5 mg/kg TMZ for 5 days followed by a 10-day washout period before collecting glioma tissues. Tumor cell suspensions were prepared and injected in the mice in the medium-dose group, which were treated with the same protocol but with an increased TMZ dose, and the tumor cells harvested from 3 mice were injected in the high-dose group. The mice bearing GL261 cell xenografts in the 3 control groups received no treatment or were injected with medium- or high-dose TMZ. Cell colony forming assay was used to assess TMZ resistance of each generation of the tumor cells; CCK8 assay was used to determine drug resistance index of the cells. RESULTS The mouse models bearing TMZresistant glioma was successfully established. The cells from the high-dose induced group showed a significantly higher colony-forming rate than those from the high-dose control group (P < 0.05), and had a drug resistance 4.25 times higher than that of the cells from untreated control group. High-dose TMZ significantly reduced the tumor volume in the control group (P < 0.05) but not in the high-dose induced group (P < 0.01). The survival time of the tumor-bearing mice was significantly shortened in the high-dose induced group (P=0.0018). CONCLUSIONS Progressive increase of TMZ doses in mice bearing orthotopic gliomas can effectively induce TMZ resistance of the gliomas.
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Affiliation(s)
- 林勇 施
- />南方医科大学南方医院神经外科,广东 广州 510515Department of Neurosurgery, Nangfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 宏 李
- />南方医科大学南方医院神经外科,广东 广州 510515Department of Neurosurgery, Nangfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 俊伟 辜
- />南方医科大学南方医院神经外科,广东 广州 510515Department of Neurosurgery, Nangfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 憧 宋
- />南方医科大学南方医院神经外科,广东 广州 510515Department of Neurosurgery, Nangfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 俊杰 李
- />南方医科大学南方医院神经外科,广东 广州 510515Department of Neurosurgery, Nangfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 磊 陈
- />南方医科大学南方医院神经外科,广东 广州 510515Department of Neurosurgery, Nangfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 强 周
- />南方医科大学南方医院神经外科,广东 广州 510515Department of Neurosurgery, Nangfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 松涛 漆
- />南方医科大学南方医院神经外科,广东 广州 510515Department of Neurosurgery, Nangfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 云涛 陆
- />南方医科大学南方医院神经外科,广东 广州 510515Department of Neurosurgery, Nangfang Hospital, Southern Medical University, Guangzhou 510515, China
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Understanding the epigenetic landscape and cellular architecture of childhood brain tumors. Neurochem Int 2020; 144:104940. [PMID: 33333210 DOI: 10.1016/j.neuint.2020.104940] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 12/12/2020] [Indexed: 11/22/2022]
Abstract
Pediatric brain tumors are the leading cancer-related cause of death in children and adolescents in the United States, affecting on average 1 in 2000 children per year. Recent advances in cancer genomics have led to profound discoveries about the underlying molecular biology and ontogeny of these tumors. In particular, these studies have revealed epigenetic dysregulation to be one of the main hallmarks of pediatric brain tumorigenesis. In this review, we will highlight a number of important recent findings about the nature of this dysregulation in different types of pediatric brain tumors as well as examine their implications for preclinical research and clinical practice. Specifically, we discuss the emergence of methylation signatures as tools for tumor stratification/classification while also highlighting the importance of mutations that directly affect the epigenome and clarifying their impact on risk stratification and pediatric brain tumor biology. We then incorporate recent advances in our understanding of pediatric brain tumor cellular architecture and emphasize the link between epigenetic dysregulation and the "stalled" development seen in many of these malignant neoplasms. Lastly, we explore recentwork investigating the use of these mutated epigenomic regulators as therapeutic targets and extrapolate their utility in overcoming this "stalling" to halt tumor growth.
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Dong W, Li L, Teng X, Yang X, Si S, Chai J. End Processing Factor APLF Promotes NHEJ Efficiency and Contributes to TMZ- and Ionizing Radiation-Resistance in Glioblastoma Cells. Onco Targets Ther 2020; 13:10593-10605. [PMID: 33116637 PMCID: PMC7584509 DOI: 10.2147/ott.s254292] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 08/02/2020] [Indexed: 11/23/2022] Open
Abstract
Purpose Glioblastoma (GBM) is the most commonly diagnosed primary brain tumor in adults. Despite a variety of advances in the understanding of GBM cancer biology during recent decades, very few of them were applied into treatment, and the survival rate of GBM patients has not been improved majorly due to the low chemosensitivity to temozolomide (TMZ) or low radiosensitivity. Therefore, it is urgent to elucidate mechanisms of TMZ- and IR-resistance and develop novel therapeutic strategies to improve GBM treatment. Methods TMZ- and IR-resistant cell lines were acquired by continuous exposing parental GBM cells to TMZ or IR for 3 months. Cell viability was determined by using Sulforhodamine B (SRB) assay. Protein and mRNA expression were examined by Western blotting assay and quantitative polymerase chain reaction (qPCR) assay, respectively. Homologous recombination (HR) and nonhomologous end joining (NHEJ) efficiency were measured by HR and NHEJ reporter assay. Cell apoptosis was determined by Caspase3/7 activity. Autophagy was analyzed using CYTO-ID® Autophagy detection kit. Tumor growth was examined by U87 xenograft mice model. Results DNA repair efficiency of non-homologous end joining (NHEJ) pathway is significantly increased in TMZ- and IR-resistant GBM cells. Importantly, APLF, which is one of the DNA end processing factors in NHEJ, is upregulated in TMZ- and IR-resistant GBM cells and patients. APLF deficiency significantly decreases NHEJ efficiency and improves cell sensitivity to TMZ and IR both in vitro and in vivo. Conclusion Our study provides evidence for APLF serving as a promising, novel target in GBM chemo- and radio-therapy.
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Affiliation(s)
- Wei Dong
- Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academic Sciences, Jinan, Shandong, People's Republic of China
| | - Lanlan Li
- Binzhou Medical University Hospital, Binzhou, Shandong, People's Republic of China
| | - Xuepeng Teng
- Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academic Sciences, Jinan, Shandong, People's Republic of China
| | - Xinhua Yang
- Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academic Sciences, Jinan, Shandong, People's Republic of China
| | - Shujing Si
- Department of Oncology, Gaoqing People's Hospital, Zibo, Shandong, People's Republic of China
| | - Jie Chai
- Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academic Sciences, Jinan, Shandong, People's Republic of China
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Angom RS, Mondal SK, Wang F, Madamsetty VS, Wang E, Dutta SK, Gulani Y, Sarabia-Estrada R, Sarkaria JN, Quiñones-Hinojosa A, Mukhopadhyay D. Ablation of neuropilin-1 improves the therapeutic response in conventional drug-resistant glioblastoma multiforme. Oncogene 2020; 39:7114-7126. [PMID: 33005016 DOI: 10.1038/s41388-020-01462-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 08/25/2020] [Accepted: 09/10/2020] [Indexed: 12/18/2022]
Abstract
Glioblastoma multiforme (GBM) is a highly proliferative and locally invasive cancer with poor prognosis and a high recurrence rate. Although anti-VEGF (vascular endothelial growth factor) therapy offers short-term benefit to GBM patients, this approach fails as the tumor develops into a more invasive and drug-resistant phenotype and ultimately recurs. Recently, both glioma stemlike cells (GSCs) and brain tumor-initiating cells (BTICs) have been implicated in GBM recurrence and its resistance to therapy. We observed that patient-derived GBM cells expressing shRNAs of VEGF or neuropilin-1 (NRP-1) attenuate cancer stem cell markers, inhibit the tumor-initiating cell's neurosphere-forming capacity, and migration. Furthermore, both VEGF and NRP-1 knockdown inhibit the growth of patient-derived GBM xenografts in both zebrafish and mouse models. Interestingly, NRP-1-depleted patient-derived GBM xenografts substantially prolonged survival in mice compared to that of VEGF depletion. Our results also demonstrate that NRP-1 ablation of patient-derived GBM cells improves the sensitivity of TMZ and enhances the overall survival of the respective tumor-bearing mice. This improved outcome may provide insight into the inhibition of GBM progression and effective treatment strategies by targeting NRP-1 in addition to chemotherapy and radiotherapy.
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Affiliation(s)
- Ramcharan Singh Angom
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine and Science, Jacksonville, FL, USA
| | - Sujan Kumar Mondal
- Department of Neurosurgery, Mayo Clinic College of Medicine and Science, Jacksonville, FL, USA.,Department of Pathology, University of Pittsburgh Medical Center, UPMC Hillman Center, Pittsburgh, PA, USA
| | - Fei Wang
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine and Science, Jacksonville, FL, USA.,Department of Neurosurgery, Inner Mongolia Medical University Affiliated Hospital, 010050, Inner Mongolia, China
| | - Vijay Sagar Madamsetty
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine and Science, Jacksonville, FL, USA
| | - Enfeng Wang
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine and Science, Jacksonville, FL, USA
| | - Shamit K Dutta
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine and Science, Jacksonville, FL, USA
| | - Yash Gulani
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine and Science, Jacksonville, FL, USA
| | - Rachel Sarabia-Estrada
- Department of Neurosurgery, Mayo Clinic College of Medicine and Science, Jacksonville, FL, USA
| | - Jann N Sarkaria
- Department of Radiation Oncology, Mayo Clinic College of Medicine and Science, Rochester, MN, USA
| | | | - Debabrata Mukhopadhyay
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine and Science, Jacksonville, FL, USA.
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Escamilla-Ramírez A, Castillo-Rodríguez RA, Zavala-Vega S, Jimenez-Farfan D, Anaya-Rubio I, Briseño E, Palencia G, Guevara P, Cruz-Salgado A, Sotelo J, Trejo-Solís C. Autophagy as a Potential Therapy for Malignant Glioma. Pharmaceuticals (Basel) 2020; 13:ph13070156. [PMID: 32707662 PMCID: PMC7407942 DOI: 10.3390/ph13070156] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 07/01/2020] [Accepted: 07/14/2020] [Indexed: 02/06/2023] Open
Abstract
Glioma is the most frequent and aggressive type of brain neoplasm, being anaplastic astrocytoma (AA) and glioblastoma multiforme (GBM), its most malignant forms. The survival rate in patients with these neoplasms is 15 months after diagnosis, despite a diversity of treatments, including surgery, radiation, chemotherapy, and immunotherapy. The resistance of GBM to various therapies is due to a highly mutated genome; these genetic changes induce a de-regulation of several signaling pathways and result in higher cell proliferation rates, angiogenesis, invasion, and a marked resistance to apoptosis; this latter trait is a hallmark of highly invasive tumor cells, such as glioma cells. Due to a defective apoptosis in gliomas, induced autophagic death can be an alternative to remove tumor cells. Paradoxically, however, autophagy in cancer can promote either a cell death or survival. Modulating the autophagic pathway as a death mechanism for cancer cells has prompted the use of both inhibitors and autophagy inducers. The autophagic process, either as a cancer suppressing or inducing mechanism in high-grade gliomas is discussed in this review, along with therapeutic approaches to inhibit or induce autophagy in pre-clinical and clinical studies, aiming to increase the efficiency of conventional treatments to remove glioma neoplastic cells.
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Affiliation(s)
- Angel Escamilla-Ramírez
- Departamento de Neuroinmunología, Instituto Nacional de Neurología y Neurocirugía, Ciudad de México 14269, Mexico; (A.E.-R.); (I.A.-R.); (G.P.); (P.G.); (A.C.-S.); (J.S.)
| | - Rosa A. Castillo-Rodríguez
- Laboratorio de Oncología Experimental, CONACYT-Instituto Nacional de Pediatría, Ciudad de México 04530, Mexico;
| | - Sergio Zavala-Vega
- Departamento de Patología, Instituto Nacional de Neurología y Neurocirugía, Ciudad de México 14269, Mexico;
| | - Dolores Jimenez-Farfan
- Laboratorio de Inmunología, División de Estudios de Posgrado e Investigación, Facultad de Odontología, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico;
| | - Isabel Anaya-Rubio
- Departamento de Neuroinmunología, Instituto Nacional de Neurología y Neurocirugía, Ciudad de México 14269, Mexico; (A.E.-R.); (I.A.-R.); (G.P.); (P.G.); (A.C.-S.); (J.S.)
| | - Eduardo Briseño
- Clínica de Neurooncología, Instituto Nacional de Neurología y Neurocirugía, Ciudad de México 14269, Mexico;
| | - Guadalupe Palencia
- Departamento de Neuroinmunología, Instituto Nacional de Neurología y Neurocirugía, Ciudad de México 14269, Mexico; (A.E.-R.); (I.A.-R.); (G.P.); (P.G.); (A.C.-S.); (J.S.)
| | - Patricia Guevara
- Departamento de Neuroinmunología, Instituto Nacional de Neurología y Neurocirugía, Ciudad de México 14269, Mexico; (A.E.-R.); (I.A.-R.); (G.P.); (P.G.); (A.C.-S.); (J.S.)
| | - Arturo Cruz-Salgado
- Departamento de Neuroinmunología, Instituto Nacional de Neurología y Neurocirugía, Ciudad de México 14269, Mexico; (A.E.-R.); (I.A.-R.); (G.P.); (P.G.); (A.C.-S.); (J.S.)
| | - Julio Sotelo
- Departamento de Neuroinmunología, Instituto Nacional de Neurología y Neurocirugía, Ciudad de México 14269, Mexico; (A.E.-R.); (I.A.-R.); (G.P.); (P.G.); (A.C.-S.); (J.S.)
| | - Cristina Trejo-Solís
- Departamento de Neuroinmunología, Instituto Nacional de Neurología y Neurocirugía, Ciudad de México 14269, Mexico; (A.E.-R.); (I.A.-R.); (G.P.); (P.G.); (A.C.-S.); (J.S.)
- Correspondence: ; Tel.: +52-555-060-4040
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Steed TC, Treiber JM, Taha B, Engin HB, Carter H, Patel KS, Dale AM, Carter BS, Chen CC. Glioblastomas located in proximity to the subventricular zone (SVZ) exhibited enrichment of gene expression profiles associated with the cancer stem cell state. J Neurooncol 2020; 148:455-462. [PMID: 32556864 DOI: 10.1007/s11060-020-03550-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 05/29/2020] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Conflicting results have been reported in the association between glioblastoma proximity to the subventricular zone (SVZ) and enrichment of cancer stem cell properties. Here, we examined this hypothesis using magnetic resonance (MR) images derived from 217 The Cancer Imaging Archive (TCIA) glioblastoma subjects. METHODS Pre-operative MR images were segmented automatically into contrast enhancing (CE) tumor volumes using Iterative Probabilistic Voxel Labeling (IPVL). Distances were calculated from the centroid of CE tumor volumes to the SVZ and correlated with gene expression profiles of the corresponding glioblastomas. Correlative analyses were performed between SVZ distance, gene expression patterns, and clinical survival. RESULTS Glioblastoma located in proximity to the SVZ showed increased mRNA expression patterns associated with the cancer stem-cell state, including CD133 (P = 0.006). Consistent with the previous observations suggesting that glioblastoma stem cells exhibit increased DNA repair capacity, glioblastomas in proximity to the SVZ also showed increased expression of DNA repair genes, including MGMT (P = 0.018). Reflecting this enhanced DNA repair capacity, the genomes of glioblastomas in SVZ proximity harbored fewer single nucleotide polymorphisms relative to those located distant to the SVZ (P = 0.003). Concordant with the notion that glioblastoma stem cells are more aggressive and refractory to therapy, patients with glioblastoma in proximity to SVZ exhibited poorer progression free and overall survival (P < 0.01). CONCLUSION An unbiased analysis of TCIA suggests that glioblastomas located in proximity to the SVZ exhibited mRNA expression profiles associated with stem cell properties, increased DNA repair capacity, and is associated with poor clinical survival.
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Affiliation(s)
- Tyler C Steed
- Department of Neurosurgery, Emory School of Surgery, Atlanta, GA, USA
| | - Jeffrey M Treiber
- Department of Neurosurgery, Baylor College of Medicine, Houston, TX, USA
| | - Birra Taha
- Department of Neurosurgery, University of Minnesota, D429 Mayo Memorial Building, 420 Delaware St. S. E., MMC96, Minneapolis, MN, 55455, USA
| | - H Billur Engin
- Division of Medical Genetics, Department of Medicine, University of California, La Jolla, San Diego, CA, USA
| | - Hannah Carter
- Division of Medical Genetics, Department of Medicine, University of California, La Jolla, San Diego, CA, USA
| | - Kunal S Patel
- Department of Neurosurgery, University of California Los Angeles, Los Angeles, CA, USA
| | - Anders M Dale
- Multimodal Imaging Laboratory, University of California San Diego, La Jolla, San Diego, CA, USA
- Department of Radiology, University of California San Diego, La Jolla, San Diego, CA, USA
| | - Bob S Carter
- Department of Neurosurgery, Massachusetts General Hospital, Boston, MA, USA
| | - Clark C Chen
- Department of Neurosurgery, University of Minnesota, D429 Mayo Memorial Building, 420 Delaware St. S. E., MMC96, Minneapolis, MN, 55455, USA.
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Aziz-Bose R, Monje M. Diffuse intrinsic pontine glioma: molecular landscape and emerging therapeutic targets. Curr Opin Oncol 2020; 31:522-530. [PMID: 31464759 DOI: 10.1097/cco.0000000000000577] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
PURPOSE OF REVIEW Diffuse intrinsic pontine glioma (DIPG) is a fatal childhood brainstem malignancy. Despite advances in understanding of the molecular underpinnings of the tumor in the past decade, the dismal prognosis of DIPG has thus far remained unchanged. This review seeks to highlight promising therapeutic targets within three arenas: DIPG cell-intrinsic vulnerabilities, immunotherapeutic approaches to tumor clearance, and microenvironmental dependencies that promote tumor growth. RECENT FINDINGS Promising therapeutic strategies from recent studies include epigenetic modifying agents such as histone deacetylase inhibitors, bromodomain and extra-terminal motif (BET) protein inhibitors, and CDK7 inhibitors. Tumor-specific immunotherapies are emerging. Key interactions between DIPG and normal brain cells are coming to light, and targeting critical microenvironmental mechanisms driving DIPG growth in the developing childhood brain represents a new direction for therapy. SUMMARY Several DIPG treatment strategies are being evaluated in early clinical trials. Ultimately, we suspect that a multifaceted therapeutic approach utilizing cell-intrinsic, microenvironmental, and immunotherapeutic targets will be necessary for eradicating DIPG.
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Affiliation(s)
| | - Michelle Monje
- Department of Neurology and Neurological Sciences.,Stanford Institute for Stem Cell Biology and Regenerative Medicine.,Stanford Cancer Institute.,Department of Pediatrics.,Department of Psychiatry and Behavioral Sciences.,Department of Pathology, Stanford University School of Medicine, Stanford, California, USA
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Lu C, Wei Y, Wang X, Zhang Z, Yin J, Li W, Chen L, Lyu X, Shi Z, Yan W, You Y. DNA-methylation-mediated activating of lncRNA SNHG12 promotes temozolomide resistance in glioblastoma. Mol Cancer 2020; 19:28. [PMID: 32039732 PMCID: PMC7011291 DOI: 10.1186/s12943-020-1137-5] [Citation(s) in RCA: 148] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 01/16/2020] [Indexed: 12/27/2022] Open
Abstract
Background Accumulating evidence shows that long noncoding RNAs (lncRNAs) are important regulator molecules involved in diverse biological processes. Acquired drug resistance is a major challenge in the clinical treatment of glioblastoma (GBM), and lncRNAs have been shown to play a role in chemotherapy resistance. However, the underlying mechanisms by which lncRNA mediates TMZ resistance in GBM remain poorly characterized. Methods Quantitative reverse transcription PCR (qRT-PCR) and fluorescence in situ hybridization assays were used to detect small nucleolar RNA host gene 12 (SNHG12) levels in TMZ-sensitive and TMZ-resistant GBM cells and tissues. The effects of SNHG12 on TMZ resistance were investigated through in vitro assays (western blots, colony formation assays, flow cytometry assays, and TUNEL assays). The mechanism mediating the high expression of SNHG12 in TMZ-resistant cells and its relationships with miR-129-5p, mitogen-activated protein kinase 1 (MAPK1), and E2F transcription factor 7 (E2F7) were determined by bioinformatic analysis, bisulfite amplicon sequencing, methylation-specific PCR, dual luciferase reporter assays, chromatin immunoprecipitation assays, RNA immunoprecipitation assays, immunofluorescence, qRT-PCR, and western blot. For in vivo experiments, an intracranial xenograft tumor mouse model was used to investigate SNHG12 function. Results SNHG12 was upregulated in TMZ-resistant cells and tissues. Overexpression of SNHG12 led to the development of acquired TMZ resistance, while knockdown of SNHG12 restored TMZ sensitivity. An abnormally low level of DNA methylation was detected within the promoter region of SNHG12, and loss of DNA methylation made this region more accessible to the Sp1 transcription factor (SP1); this indicated that methylation and SP1 work together to regulate SNHG12 expression. In the cytoplasm, SNHG12 served as a sponge for miR-129-5p, leading to upregulation of MAPK1 and E2F7 and endowing the GBM cells with TMZ resistance. Disinhibition of MAPK1 regulated TMZ-induced cell apoptosis and the G1/S cell cycle transition by activating the MAPK/ERK pathway, while E2F7 dysregulation was primarily associated with G1/S cell cycle transition. Clinically, SNHG12 overexpression was associated with poor survival of GBM patients undergoing TMZ treatment. Conclusion Our results suggest that SNHG12 could serve as a promising therapeutic target to surmount TMZ resistance, thereby improving the clinical efficacy of TMZ chemotherapy.
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Affiliation(s)
- Chenfei Lu
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Yutian Wei
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Xiefeng Wang
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Zhuoran Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Jianxing Yin
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Wentao Li
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Lijiu Chen
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Xiao Lyu
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Zhumei Shi
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Wei Yan
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Yongping You
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China. .,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing, 211166, Jiangsu, China. .,Institute for Brain Tumors, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, 211166, Jiangsu, China.
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Inhibition of phosphatidylinositol 3-kinase by PX-866 suppresses temozolomide-induced autophagy and promotes apoptosis in glioblastoma cells. Mol Med 2019; 25:49. [PMID: 31726966 PMCID: PMC6854621 DOI: 10.1186/s10020-019-0116-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 10/18/2019] [Indexed: 12/16/2022] Open
Abstract
Background Temozolomide (TMZ) is the most commonly used chemotherapeutic agent used to treat glioblastoma (GBM), which causes significant DNA damage to highly proliferative cells. Our observations have added to accumulating evidence that TMZ induces stress-responsive cellular programs known to promote cell survival, including autophagy. As such, targeting these survival pathways may represent new vulnerabilities of GBM after treatment with TMZ. Methods Using the T98G human glioma cell line, we assessed the molecular signaling associated with TMZ treatment, the cellular consequences of using the pan-PI3K inhibitor PX-866, and performed clonogenic assays to determine the effect sequential treatment of TMZ and PX-866 had on colony formation. Additionally, we also use subcutaneous GBM patient derived xenograft (PDX) tumors to show relative LC3 protein expression and correlations between survival pathways and molecular markers which dictate clinical responsiveness to TMZ. Results Here, we report that TMZ can induce autophagic flux in T98G glioma cells. GBM patient-derived xenograft (PDX) tumors treated with TMZ also display an increase in the autophagosome marker LC3 II. Additionally, O6-methylguanine-DNA-methyltransferase (MGMT) expression correlates with PI3K/AKT activity, suggesting that patients with inherent resistance to TMZ (MGMT-high) would benefit from PI3K/AKT inhibitors in addition to TMZ. Accordingly, we have identified that the blood-brain barrier (BBB) penetrant pan-PI3K inhibitor, PX-866, is an early-stage inhibitor of autophagic flux, while maintaining its ability to inhibit PI3K/AKT signaling in glioma cells. Lastly, due to the induction of autophagic flux by TMZ, we provide evidence for sequential treatment of TMZ followed by PX-866, rather than combined co-treatment, as a means to shut down autophagy-induced survival in GBM cells and to enhance apoptosis. Conclusions The understanding of how TMZ induces survival pathways, such as autophagy, may offer new therapeutic vulnerabilities and opportunities to use sequential inhibition of alternate pro-survival pathways that regulate autophagy. As such, identification of additional ways to inhibit TMZ-induced autophagy could enhance the efficacy of TMZ.
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Hersh DS, Harder BG, Roos A, Peng S, Heath JE, Legesse T, Kim AJ, Woodworth GF, Tran NL, Winkles JA. The TNF receptor family member Fn14 is highly expressed in recurrent glioblastoma and in GBM patient-derived xenografts with acquired temozolomide resistance. Neuro Oncol 2019; 20:1321-1330. [PMID: 29897522 DOI: 10.1093/neuonc/noy063] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Background Glioblastoma (GBM) is a difficult to treat brain cancer that nearly uniformly recurs, and recurrent tumors are largely therapy resistant. Our prior work has demonstrated an important role for the tumor necrosis factor-like weak inducer of apoptosis (TWEAK) receptor fibroblast growth factor-inducible 14 (Fn14) in GBM pathobiology. In this study, we investigated Fn14 expression in recurrent GBM and in the setting of temozolomide (TMZ) resistance. Methods Fn14 mRNA expression levels in nonneoplastic brain, primary (newly diagnosed) GBM, and recurrent GBM (post-chemotherapy and radiation) specimens were obtained from The Cancer Genome Atlas data portal. Immunohistochemistry was performed using nonneoplastic brain, patient-matched primary and recurrent GBM, and gliosarcoma (GSM) specimens to examine Fn14 protein levels. Western blot analysis was used to compare Fn14 expression in parental TMZ-sensitive or matched TMZ-resistant patient-derived xenografts (PDXs) established from primary or recurrent tumor samples. The migratory capacity of control and Fn14-depleted TMZ-resistant GBM cells was assessed using the transwell migration assay. Results We found that Fn14 is more highly expressed in recurrent GBM tumors than their matched primary GBM counterparts. Fn14 expression is also significantly elevated in GSM tumors. GBM PDX cells with acquired TMZ resistance have higher Fn14 levels and greater migratory capacity than their corresponding parental TMZ-sensitive cells, and the migratory difference is due, at least in part, to Fn14 expression in the TMZ-resistant cells. Conclusions This study demonstrates that the Fn14 gene is highly expressed in recurrent GBM, GSM, and TMZ-resistant GBM PDX tumors. These findings suggest that Fn14 may be a valuable therapeutic target or drug delivery portal for treatment of recurrent GBM and GSM patients.
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Affiliation(s)
- David S Hersh
- Department of Neurosurgery, University of Maryland School of Medicine, Baltimore, Maryland
| | - Bryan G Harder
- Departments of Cancer Biology and Neurosurgery, Mayo Clinic Arizona, Scottsdale, Arizona
| | - Alison Roos
- Departments of Cancer Biology and Neurosurgery, Mayo Clinic Arizona, Scottsdale, Arizona
| | - Sen Peng
- Cancer and Cell Biology Division, Translational Genomics Research Institute, Phoenix, Arizona
| | - Jonathan E Heath
- Department of Pathology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Teklu Legesse
- Department of Pathology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Anthony J Kim
- Department of Neurosurgery, University of Maryland School of Medicine, Baltimore, Maryland.,University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, Maryland
| | - Graeme F Woodworth
- Department of Neurosurgery, University of Maryland School of Medicine, Baltimore, Maryland.,University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, Maryland
| | - Nhan L Tran
- Departments of Cancer Biology and Neurosurgery, Mayo Clinic Arizona, Scottsdale, Arizona
| | - Jeffrey A Winkles
- University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, Maryland.,Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland.,Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, Maryland
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Targeting of Histone Demethylases KDM5A and KDM6B Inhibits the Proliferation of Temozolomide-Resistant Glioblastoma Cells. Cancers (Basel) 2019; 11:cancers11060878. [PMID: 31238504 PMCID: PMC6627323 DOI: 10.3390/cancers11060878] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 06/03/2019] [Accepted: 06/17/2019] [Indexed: 01/25/2023] Open
Abstract
Lysine histone demethylases (KDMs) are considered potential therapeutic targets in several tumors, including glioblastoma (GB). In particular, KDM5A is involved in the acquisition of temozolomide (TMZ) resistance in adult GB cells and UDX/KDM6B regulates H3K27 methylation, which is involved in the pediatric diffuse intrinsic pontine glioma (DIPG). Synthetic inhibitors of KDM5A (JIB 04 and CPI-455) efficiently block the proliferation of native and TMZ-resistant cells and the KDM6B inhibitor GSK J4 improves survival in a model of DIPG. The aim of our work was to determine if GSK J4 could be effective against GB cells that have acquired TMZ resistance and if it could synergize with TMZ or JIB 04 to increase the clinical utility of these molecules. Standard functional and pharmacological analytical procedures were utilized to determine the efficacy of the molecules under study when used alone or in combination against native GB cells and in a model of drug resistance. The results of this study indicated that although GSK J4 is active against native and TMZ-resistant cells, it does so at a lower efficacy than JIB 04. Drug combination studies revealed that GSK J4, differently from JIB 04, does not synergize with TMZ. Interestingly, GSK J4 and JIB 04 strongly synergize and are a potent combination against TMZ-resistant cells. Further studies in animal models will be necessary to determine if this combination of molecules might foster the development of novel therapeutic approaches for glioblastoma.
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Wu P, Cai J, Chen Q, Han B, Meng X, Li Y, Li Z, Wang R, Lin L, Duan C, Kang C, Jiang C. Lnc-TALC promotes O 6-methylguanine-DNA methyltransferase expression via regulating the c-Met pathway by competitively binding with miR-20b-3p. Nat Commun 2019; 10:2045. [PMID: 31053733 PMCID: PMC6499807 DOI: 10.1038/s41467-019-10025-2] [Citation(s) in RCA: 119] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 04/12/2019] [Indexed: 12/15/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) have emerged as new regulatory molecules implicated in diverse biological processes, including therapeutic resistance. However, the mechanisms underlying lncRNA-mediated temozolomide (TMZ) resistance in glioblastoma (GBM) remain largely unknown. To illustrate the role of lncRNA in TMZ resistance, we induce TMZ-resistant GBM cells, perform a lncRNA microarray of the parental and TMZ-resistant cells, and find an unreported lncRNA in GBM, lnc-TALC (temozolomide-associated lncRNA in glioblastoma recurrence), correlated with TMZ resistance via competitively binding miR-20b-3p to facilitate c-Met expression. A phosphorylated AKT/FOXO3 axis regulated lnc-TALC expression in TMZ-resistant GBM cells. Furthermore, lnc-TALC increased MGMT expression by mediating the acetylation of H3K9, H3K27 and H3K36 in MGMT promoter regions through the c-Met/Stat3/p300 axis. In clinical patients, lnc-TALC is required for TMZ resistance and GBM recurrence. Our results reveal that lnc-TALC in GBM could serve as a therapeutic target to overcome TMZ resistance, enhancing the clinical benefits of TMZ chemotherapy. Temozolomide resistance in glioblastoma is associated with MGMT overexpression. Here, the authors identify a lncRNA that is a competitive endogenous RNA for miR-20b-3p, which causes c-Met activation to modulate acetylation of histone H3 on MGMT promoter through Stat3/p300 complex to increase MGMT expression and temozolomide resistance.
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Affiliation(s)
- Pengfei Wu
- Department of Neurosurgery, the Second Affiliated Hospital of Harbin Medical University, Neuroscience Institute, Heilongjiang Academy of Medical Sciences, 150086, Harbin, China
| | - Jinquan Cai
- Department of Neurosurgery, the Second Affiliated Hospital of Harbin Medical University, Neuroscience Institute, Heilongjiang Academy of Medical Sciences, 150086, Harbin, China.
| | - Qun Chen
- Department of Neurosurgery, the Second Affiliated Hospital of Harbin Medical University, Neuroscience Institute, Heilongjiang Academy of Medical Sciences, 150086, Harbin, China
| | - Bo Han
- Department of Neurosurgery, the Second Affiliated Hospital of Harbin Medical University, Neuroscience Institute, Heilongjiang Academy of Medical Sciences, 150086, Harbin, China
| | - Xiangqi Meng
- Department of Neurosurgery, the Second Affiliated Hospital of Harbin Medical University, Neuroscience Institute, Heilongjiang Academy of Medical Sciences, 150086, Harbin, China
| | - Yansheng Li
- Department of Neurosurgery, Tianjin Medical University General Hospital, Lab of Neuro-oncology, Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neuro-repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, 300052, Tianjin, China
| | - Ziwei Li
- Department of Neurosurgery, the Second Affiliated Hospital of Harbin Medical University, Neuroscience Institute, Heilongjiang Academy of Medical Sciences, 150086, Harbin, China
| | - Ruijia Wang
- Department of Neurosurgery, the Second Affiliated Hospital of Harbin Medical University, Neuroscience Institute, Heilongjiang Academy of Medical Sciences, 150086, Harbin, China
| | - Lin Lin
- Department of Neurosurgery, the Second Affiliated Hospital of Harbin Medical University, Neuroscience Institute, Heilongjiang Academy of Medical Sciences, 150086, Harbin, China
| | - Chunbin Duan
- Department of Neurosurgery, the Second Affiliated Hospital of Harbin Medical University, Neuroscience Institute, Heilongjiang Academy of Medical Sciences, 150086, Harbin, China
| | - Chunsheng Kang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Lab of Neuro-oncology, Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neuro-repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, 300052, Tianjin, China.
| | - Chuanlu Jiang
- Department of Neurosurgery, the Second Affiliated Hospital of Harbin Medical University, Neuroscience Institute, Heilongjiang Academy of Medical Sciences, 150086, Harbin, China.
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