1
|
Trejo-Solís C, Serrano-García N, Castillo-Rodríguez RA, Robledo-Cadena DX, Jimenez-Farfan D, Marín-Hernández Á, Silva-Adaya D, Rodríguez-Pérez CE, Gallardo-Pérez JC. Metabolic dysregulation of tricarboxylic acid cycle and oxidative phosphorylation in glioblastoma. Rev Neurosci 2024; 0:revneuro-2024-0054. [PMID: 38841811 DOI: 10.1515/revneuro-2024-0054] [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: 04/16/2024] [Accepted: 05/21/2024] [Indexed: 06/07/2024]
Abstract
Glioblastoma multiforme (GBM) exhibits genetic alterations that induce the deregulation of oncogenic pathways, thus promoting metabolic adaptation. The modulation of metabolic enzyme activities is necessary to generate nucleotides, amino acids, and fatty acids, which provide energy and metabolic intermediates essential for fulfilling the biosynthetic needs of glioma cells. Moreover, the TCA cycle produces intermediates that play important roles in the metabolism of glucose, fatty acids, or non-essential amino acids, and act as signaling molecules associated with the activation of oncogenic pathways, transcriptional changes, and epigenetic modifications. In this review, we aim to explore how dysregulated metabolic enzymes from the TCA cycle and oxidative phosphorylation, along with their metabolites, modulate both catabolic and anabolic metabolic pathways, as well as pro-oncogenic signaling pathways, transcriptional changes, and epigenetic modifications in GBM cells, contributing to the formation, survival, growth, and invasion of glioma cells. Additionally, we discuss promising therapeutic strategies targeting key players in metabolic regulation. Therefore, understanding metabolic reprogramming is necessary to fully comprehend the biology of malignant gliomas and significantly improve patient survival.
Collapse
Affiliation(s)
- Cristina Trejo-Solís
- Laboratorio Experimental de Enfermedades Neurodegenerativas, Laboratorio de Neurobiología Molecular y Celular, Laboratorio de Neurofarmacología Molecular y Nanotecnología, Instituto Nacional de Neurología y Neurocirugía, Ciudad de Mexico 14269, Mexico
| | - Norma Serrano-García
- Laboratorio Experimental de Enfermedades Neurodegenerativas, Laboratorio de Neurobiología Molecular y Celular, Laboratorio de Neurofarmacología Molecular y Nanotecnología, Instituto Nacional de Neurología y Neurocirugía, Ciudad de Mexico 14269, Mexico
| | - Rosa Angelica Castillo-Rodríguez
- CICATA Unidad Morelos, Instituto Politécnico Nacional, Boulevard de la Tecnología, 1036 Z-1, P 2/2, Atlacholoaya, Xochitepec 62790, Mexico
| | - Diana Xochiquetzal Robledo-Cadena
- Departamento de Fisiopatología Cardio-Renal, Departamento de Bioquímica, Instituto Nacional de Cardiología, Ciudad de México 14080, Mexico
- Facultad de Ciencias, Universidad Nacional Autónoma de México, Coyoacán, 04510, Ciudad de México, Mexico
| | - Dolores Jimenez-Farfan
- Laboratorio de Inmunología, División de Estudios de Posgrado e Investigación, Facultad de Odontología, Universidad Nacional Autónoma de México, Ciudad de Mexico 04510, Mexico
| | - Álvaro Marín-Hernández
- Departamento de Fisiopatología Cardio-Renal, Departamento de Bioquímica, Instituto Nacional de Cardiología, Ciudad de México 14080, Mexico
- Facultad de Ciencias, Universidad Nacional Autónoma de México, Coyoacán, 04510, Ciudad de México, Mexico
| | - Daniela Silva-Adaya
- Laboratorio Experimental de Enfermedades Neurodegenerativas, Laboratorio de Neurobiología Molecular y Celular, Laboratorio de Neurofarmacología Molecular y Nanotecnología, Instituto Nacional de Neurología y Neurocirugía, Ciudad de Mexico 14269, Mexico
| | - Citlali Ekaterina Rodríguez-Pérez
- Laboratorio Experimental de Enfermedades Neurodegenerativas, Laboratorio de Neurobiología Molecular y Celular, Laboratorio de Neurofarmacología Molecular y Nanotecnología, Instituto Nacional de Neurología y Neurocirugía, Ciudad de Mexico 14269, Mexico
| | - Juan Carlos Gallardo-Pérez
- Departamento de Fisiopatología Cardio-Renal, Departamento de Bioquímica, Instituto Nacional de Cardiología, Ciudad de México 14080, Mexico
- Facultad de Ciencias, Universidad Nacional Autónoma de México, Coyoacán, 04510, Ciudad de México, Mexico
| |
Collapse
|
2
|
Zhang J, Hua R, Ma L, Liu C, Zhang Y, Lü X, Wang T, Wan N. Ovarian juvenile granulosa cell tumors with Ollier's disease in children with IDH1 gene somatic mutation. Front Endocrinol (Lausanne) 2023; 14:1093273. [PMID: 37324278 PMCID: PMC10265673 DOI: 10.3389/fendo.2023.1093273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 04/21/2023] [Indexed: 06/17/2023] Open
Abstract
Objective The aim of this study was to explore the symptoms, treatment, and pathogenesis of ovarian juvenile granulosa cell tumors with Ollier's disease in children. Methods From October 2019 to October 2020, clinical data were retrospectively analyzed for one case of ovarian juvenile granulosa cell tumors with Ollier's disease. Whole-exome sequencing and Sanger sequencing were used to detect gene mutation in ovarian tumor and chondroma tissue. NADP-dependent isocitrate dehydrogenase-1 (IDH1) and S6 ribosomal protein expression levels in cells transfected with wild-type or mutant plasmid were analyzed by Western blot. Results The 4-year-old female showed multiple skeletal deformities, bilateral breast development with chromatosis, and vulvar discharge. Sex hormone assay suggested that estradiol and prolactin were elevated, and the x-ray of limbs suggested enchondroma. Pelvic ultrasound and abdominal CT revealed a right ovarian solid mass. Pathologic examination of the right ovarian solid mass showed a juvenile granulosa cell type. A c.394C>T (p. Arg132Cys) mutation of the IDH1 gene was detected in both the ovarian juvenile granulosa cell tumors and enchondroma. Transfection of HeLa cells with either WT or Mut plasmid caused 4.46- or 3.77-fold overexpression of IDH1 gene compared to non-transfected control cells, respectively. R132C mutation inhibited the phosphorylation of S6 ribosomal protein, which is central to the mTOR pathway. Postoperatively, estradiol and prolactin levels fell to values normal for her age and bilateral breast gradual retraction. Conclusion The incidence of ovarian juvenile granulosa cell tumors with Ollier's disease in children may be caused by generalized mesodermal dysplasia; IDH1 gene mutation may play a facilitated role in this process. Surgical operation is the main treatment. We suggest that patients with ovarian juvenile granulosa cell tumors and Ollier's disease should undergo regular investigation.
Collapse
Affiliation(s)
- Jin Zhang
- Department of Pediatrics, Beijing Jishuitan Hospital, Beijing, China
| | - Renwu Hua
- Shenzhen Key Laboratory of Fertility Regulation, Reproductive Medicine Center, The University of Hong Kong-Shenzhen, Shenzhen, China
| | - Lishuang Ma
- Department of General Surgery, Capital Institute of Pediatrics, Beijing, China
| | - Chao Liu
- Department of General Surgery, Capital Institute of Pediatrics, Beijing, China
| | - Yanxia Zhang
- Department of General Surgery, Capital Institute of Pediatrics, Beijing, China
| | - Xuemin Lü
- Department of Pediatric Orthopedics, Beijing Jishuitan Hospital, Beijing, China
| | - Tianren Wang
- Shenzhen Key Laboratory of Fertility Regulation, Reproductive Medicine Center, The University of Hong Kong-Shenzhen, Shenzhen, China
| | - Naijun Wan
- Department of Pediatrics, Beijing Jishuitan Hospital, Beijing, China
| |
Collapse
|
3
|
Che J, DePalma TJ, Sivakumar H, Mezache LS, Tallman MM, Venere M, Swindle-Reilly K, Veeraraghavan R, Skardal A. αCT1 peptide sensitizes glioma cells to temozolomide in a glioblastoma organoid platform. Biotechnol Bioeng 2023; 120:1108-1119. [PMID: 36544242 DOI: 10.1002/bit.28313] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 12/05/2022] [Accepted: 12/13/2022] [Indexed: 12/24/2022]
Abstract
Glioblastoma (GBM) is the most common form of brain cancer. Even with aggressive treatment, tumor recurrence is almost universal and patient prognosis is poor because many GBM cell subpopulations, especially the mesenchymal and glioma stem cell populations, are resistant to temozolomide (TMZ), the most commonly used chemotherapeutic in GBM. For this reason, there is an urgent need for the development of new therapies that can more effectively treat GBM. Several recent studies have indicated that high expression of connexin 43 (Cx43) in GBM is associated with poor patient outcomes. It has been hypothesized that inhibition of the Cx43 hemichannels could prevent TMZ efflux and sensitize otherwise resistance cells to the treatment. In this study, we use a three-dimensional organoid model of GBM to demonstrate that combinatorial treatment with TMZ and αCT1, a Cx43 mimetic peptide, significantly improves treatment efficacy in certain populations of GBM. Confocal imaging was used to visualize changes in Cx43 expression in response to combinatorial treatment. These results indicate that Cx43 inhibition should be pursued further as an improved treatment for GBM.
Collapse
Affiliation(s)
- Jingru Che
- Department of Biomedical Engineering, The Ohio State University, Columbus, Ohio, USA
| | - Thomas J DePalma
- Department of Biomedical Engineering, The Ohio State University, Columbus, Ohio, USA
- The Ohio State University and Arthur G. James Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio, USA
| | | | - Louisa S Mezache
- Department of Biomedical Engineering, The Ohio State University, Columbus, Ohio, USA
- Biomedical Sciences Graduate Program, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Miranda M Tallman
- Dorothy M. Davis Hearth and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA
- Department of Radiation Oncology, James Cancer Hospital and Comprehensive Cancer Center, The Ohio State University College of Medicine, Columbus, Ohio, USA
| | - Monica Venere
- The Ohio State University and Arthur G. James Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio, USA
- Department of Radiation Oncology, James Cancer Hospital and Comprehensive Cancer Center, The Ohio State University College of Medicine, Columbus, Ohio, USA
| | - Katelyn Swindle-Reilly
- Department of Biomedical Engineering, The Ohio State University, Columbus, Ohio, USA
- Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio, USA
- Department of Ophthalmology and Visual Science, The Ohio State University, Columbus, Ohio, USA
| | - Rengasayee Veeraraghavan
- Department of Biomedical Engineering, The Ohio State University, Columbus, Ohio, USA
- Biomedical Sciences Graduate Program, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Aleksander Skardal
- Department of Biomedical Engineering, The Ohio State University, Columbus, Ohio, USA
- The Ohio State University and Arthur G. James Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio, USA
- Center for Cancer Engineering, The Ohio State University, Columbus, Ohio, USA
| |
Collapse
|
4
|
Liu Y, Xu W, Li M, Yang Y, Sun D, Chen L, Li H, Chen L. The regulatory mechanisms and inhibitors of isocitrate dehydrogenase 1 in cancer. Acta Pharm Sin B 2023; 13:1438-1466. [PMID: 37139412 PMCID: PMC10149907 DOI: 10.1016/j.apsb.2022.12.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/07/2022] [Accepted: 11/18/2022] [Indexed: 02/04/2023] Open
Abstract
Reprogramming of energy metabolism is one of the basic characteristics of cancer and has been proved to be an important cancer treatment strategy. Isocitrate dehydrogenases (IDHs) are a class of key proteins in energy metabolism, including IDH1, IDH2, and IDH3, which are involved in the oxidative decarboxylation of isocitrate to yield α-ketoglutarate (α-KG). Mutants of IDH1 or IDH2 can produce d-2-hydroxyglutarate (D-2HG) with α-KG as the substrate, and then mediate the occurrence and development of cancer. At present, no IDH3 mutation has been reported. The results of pan-cancer research showed that IDH1 has a higher mutation frequency and involves more cancer types than IDH2, implying IDH1 as a promising anti-cancer target. Therefore, in this review, we summarized the regulatory mechanisms of IDH1 on cancer from four aspects: metabolic reprogramming, epigenetics, immune microenvironment, and phenotypic changes, which will provide guidance for the understanding of IDH1 and exploring leading-edge targeted treatment strategies. In addition, we also reviewed available IDH1 inhibitors so far. The detailed clinical trial results and diverse structures of preclinical candidates illustrated here will provide a deep insight into the research for the treatment of IDH1-related cancers.
Collapse
|
5
|
Wu QJ, Zhang TN, Chen HH, Yu XF, Lv JL, Liu YY, Liu YS, Zheng G, Zhao JQ, Wei YF, Guo JY, Liu FH, Chang Q, Zhang YX, Liu CG, Zhao YH. The sirtuin family in health and disease. Signal Transduct Target Ther 2022; 7:402. [PMID: 36581622 PMCID: PMC9797940 DOI: 10.1038/s41392-022-01257-8] [Citation(s) in RCA: 136] [Impact Index Per Article: 68.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 11/10/2022] [Accepted: 11/18/2022] [Indexed: 12/30/2022] Open
Abstract
Sirtuins (SIRTs) are nicotine adenine dinucleotide(+)-dependent histone deacetylases regulating critical signaling pathways in prokaryotes and eukaryotes, and are involved in numerous biological processes. Currently, seven mammalian homologs of yeast Sir2 named SIRT1 to SIRT7 have been identified. Increasing evidence has suggested the vital roles of seven members of the SIRT family in health and disease conditions. Notably, this protein family plays a variety of important roles in cellular biology such as inflammation, metabolism, oxidative stress, and apoptosis, etc., thus, it is considered a potential therapeutic target for different kinds of pathologies including cancer, cardiovascular disease, respiratory disease, and other conditions. Moreover, identification of SIRT modulators and exploring the functions of these different modulators have prompted increased efforts to discover new small molecules, which can modify SIRT activity. Furthermore, several randomized controlled trials have indicated that different interventions might affect the expression of SIRT protein in human samples, and supplementation of SIRT modulators might have diverse impact on physiological function in different participants. In this review, we introduce the history and structure of the SIRT protein family, discuss the molecular mechanisms and biological functions of seven members of the SIRT protein family, elaborate on the regulatory roles of SIRTs in human disease, summarize SIRT inhibitors and activators, and review related clinical studies.
Collapse
Affiliation(s)
- Qi-Jun Wu
- grid.412467.20000 0004 1806 3501Liaoning Key Laboratory of Precision Medical Research on Major Chronic Disease, Shengjing Hospital of China Medical University, Shenyang, China ,grid.412467.20000 0004 1806 3501Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China ,grid.412467.20000 0004 1806 3501Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China ,grid.412467.20000 0004 1806 3501Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
| | - Tie-Ning Zhang
- grid.412467.20000 0004 1806 3501Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Huan-Huan Chen
- grid.412467.20000 0004 1806 3501Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xue-Fei Yu
- grid.412467.20000 0004 1806 3501Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China ,grid.412467.20000 0004 1806 3501Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Jia-Le Lv
- grid.412467.20000 0004 1806 3501Liaoning Key Laboratory of Precision Medical Research on Major Chronic Disease, Shengjing Hospital of China Medical University, Shenyang, China ,grid.412467.20000 0004 1806 3501Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China ,grid.412467.20000 0004 1806 3501Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yu-Yang Liu
- grid.412467.20000 0004 1806 3501Liaoning Key Laboratory of Precision Medical Research on Major Chronic Disease, Shengjing Hospital of China Medical University, Shenyang, China ,grid.412467.20000 0004 1806 3501Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China ,grid.412467.20000 0004 1806 3501Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
| | - Ya-Shu Liu
- grid.412467.20000 0004 1806 3501Liaoning Key Laboratory of Precision Medical Research on Major Chronic Disease, Shengjing Hospital of China Medical University, Shenyang, China ,grid.412467.20000 0004 1806 3501Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China ,grid.412467.20000 0004 1806 3501Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
| | - Gang Zheng
- grid.412467.20000 0004 1806 3501Liaoning Key Laboratory of Precision Medical Research on Major Chronic Disease, Shengjing Hospital of China Medical University, Shenyang, China ,grid.412467.20000 0004 1806 3501Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China ,grid.412467.20000 0004 1806 3501Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
| | - Jun-Qi Zhao
- grid.412467.20000 0004 1806 3501Liaoning Key Laboratory of Precision Medical Research on Major Chronic Disease, Shengjing Hospital of China Medical University, Shenyang, China ,grid.412467.20000 0004 1806 3501Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China ,grid.412467.20000 0004 1806 3501Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yi-Fan Wei
- grid.412467.20000 0004 1806 3501Liaoning Key Laboratory of Precision Medical Research on Major Chronic Disease, Shengjing Hospital of China Medical University, Shenyang, China ,grid.412467.20000 0004 1806 3501Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China ,grid.412467.20000 0004 1806 3501Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
| | - Jing-Yi Guo
- grid.412467.20000 0004 1806 3501Liaoning Key Laboratory of Precision Medical Research on Major Chronic Disease, Shengjing Hospital of China Medical University, Shenyang, China ,grid.412467.20000 0004 1806 3501Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China ,grid.412467.20000 0004 1806 3501Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
| | - Fang-Hua Liu
- grid.412467.20000 0004 1806 3501Liaoning Key Laboratory of Precision Medical Research on Major Chronic Disease, Shengjing Hospital of China Medical University, Shenyang, China ,grid.412467.20000 0004 1806 3501Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China ,grid.412467.20000 0004 1806 3501Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
| | - Qing Chang
- grid.412467.20000 0004 1806 3501Liaoning Key Laboratory of Precision Medical Research on Major Chronic Disease, Shengjing Hospital of China Medical University, Shenyang, China ,grid.412467.20000 0004 1806 3501Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China ,grid.412467.20000 0004 1806 3501Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yi-Xiao Zhang
- grid.412467.20000 0004 1806 3501Department of Urology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Cai-Gang Liu
- grid.412467.20000 0004 1806 3501Department of Cancer, Breast Cancer Center, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yu-Hong Zhao
- grid.412467.20000 0004 1806 3501Liaoning Key Laboratory of Precision Medical Research on Major Chronic Disease, Shengjing Hospital of China Medical University, Shenyang, China ,grid.412467.20000 0004 1806 3501Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China ,grid.412467.20000 0004 1806 3501Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
| |
Collapse
|
6
|
Song C, Zhu L, Gu J, Wang T, Shi L, Li C, Chen L, Xie S, Lu Y. A necroptosis-related lncRNA signature was identified to predict the prognosis and immune microenvironment of IDH-wild-type GBM. Front Oncol 2022; 12:1024208. [PMID: 36601479 PMCID: PMC9806237 DOI: 10.3389/fonc.2022.1024208] [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: 08/21/2022] [Accepted: 11/28/2022] [Indexed: 12/23/2022] Open
Abstract
Introduction Necroptosis-related genes are essential for the advancement of IDH-wild-type GBM. However, the putative effects of necroptosis-related lncRNAs (nrlncRNAs) in IDH-wild-type GBM remain unknown. Methods By using the TCGA and GTEx databases, a nrlncRNA prognostic signature was created using LASSO Cox regression. The median risk score was used to categorize the patients into low and high-risk groups. To confirm the validity, univariate, multivariate Cox regression and ROC curves were used. Furthermore, by enrichment analysis, immune correlation analysis, and drug sensitivity analysis, the targeted lncRNAs were selected for further verification. As the highest upregulated expression in tumor than peritumor specimens, RP11-131L12.4 was selected for phenotype and functional experiments in primary GBM cells. Results Six lncRNAs were proved to be closely related to necroptosis in IDH-1-wild-type GBM, which were used to create a new signature. For 1-, 2-, and 3-year OS, the AUCs were 0.709, 0.645 and 0.694, respectively. Patients in the low-risk group had a better prognosis, stronger immune function activity, and more immune cell infiltration. In contrast, enrichment analysis revealed that the malignant phenotype was more prevalent in the high-risk group. In vitro experiments indicated that RP11-131L12.4 increased the tumor proliferation, migration and invasion, but decreased the necroptosis. Moreover, this nrlncRNA was also proved to be negatively associated with patient prognosis. Conclusion The signature of nrlncRNAs may aid in the formulation of tailored and precise treatment for individuals with IDH-wild-type GBM. RP11-131L12.4 may play indispensable role in necroptosis suppression.
Collapse
Affiliation(s)
- 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
| | - Liwen Zhu
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Junwei Gu
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Tong Wang
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Linyong Shi
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Chiyang Li
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Lei Chen
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Sidi Xie
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China,Nanfang Neurology Research Institution, Nanfang Hospital, Southern Medical University, Guangzhou, China,Nanfang Glioma Center, Nanfang Hospital, Southern Medical University, Guangzhou, China,*Correspondence: Sidi Xie, ; Yuntao Lu,
| | - 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, Nanfang Hospital, Southern Medical University, Guangzhou, China,*Correspondence: Sidi Xie, ; Yuntao Lu,
| |
Collapse
|
7
|
Kostiuchenko O, Lushnikova I, Kowalczyk M, Skibo G. mTOR/α-ketoglutarate-mediated signaling pathways in the context of brain neurodegeneration and neuroprotection. BBA ADVANCES 2022; 2:100066. [PMID: 37082603 PMCID: PMC10074856 DOI: 10.1016/j.bbadva.2022.100066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 11/15/2022] [Indexed: 11/18/2022] Open
Abstract
Cerebral disorders are largely associated with impaired cellular metabolism, despite the regulatory mechanisms designed to ensure cell viability and adequate brain function. Mechanistic target of rapamycin (mTOR) signaling is one of the most crucial factors in the regulation of energy homeostasis and its imbalance is linked with a variety of neurodegenerative diseases. Recent advances in the metabolic pathways' modulation indicate the role of α-ketoglutarate (AKG) as a major signaling hub, additionally highlighting its anti-aging and neuroprotective properties, but the mechanisms of its action are not entirely clear. In this review, we analyzed the physiological and pathophysiological aspects of mTOR in the brain. We also discussed AKG's multifunctional properties, as well as mTOR/AKG-mediated functional communications in cellular metabolism. Thus, this article provides a broad overview of the mTOR/AKG-mediated signaling pathways, in the context of neurodegeneration and endogenous neuroprotection, with the aim to find novel therapeutic strategies.
Collapse
|
8
|
Shayanfar N, Zare-Mirzaie A, Mohammadpour M, Jafari E, Mehrtash A, Emtiazi N, Tajik F. Low expression of isocitrate dehydrogenase 1 (IDH1) R132H is associated with advanced pathological features in laryngeal squamous cell carcinoma. J Cancer Res Clin Oncol 2022:10.1007/s00432-022-04336-z. [PMID: 36063222 DOI: 10.1007/s00432-022-04336-z] [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: 07/22/2022] [Accepted: 08/26/2022] [Indexed: 10/14/2022]
Abstract
INTRODUCTION Recent developments in genomic sequencing have led to the identification of somatic mutations in isocitrate dehydrogenase 1 (IDH1) in various malignancies. IDH1 R132H is the most common mutation of IDH1, which affects codon 132 and results in the conversion of amino acid residue arginine (R) to histidine (H). This study is designed to evaluate the association between the expression of IDH1 R132H and clinicopathological characteristics in laryngeal squamous cell carcinoma (LSCC). METHODS The expression pattern and clinical significance of IDH1 R132H were investigated in tissue microarrays (TMAs) of 50 LSCC tumors as well as adjacent normal tissues using immunohistochemistry. Then the exons of the 12 tumor samples with negative/weak positive staining were sequenced by applying polymerase chain reaction (PCR). RESULTS The results demonstrated that the cytoplasmic expression of IDH1 R132H was downregulated in tumor cells compared to adjacent normal tissues. A statistically significant association was found between a low level of cytoplasmic expression of IDH1 R132H protein and an increase in histological grade (p < 0.001), perineural invasion (p = 0.019), and lymph node involvement (p < 0.001). The exon4 sequencing results showed that only one sample was positive for IDH1 R132H mutation. IDH1 R132H expression was observed in 39 (78.0%) LSCC samples. CONCLUSION These findings indicate that low cytoplasmic expression of IDH1 R132H may have clinical significance in LSCC patients and is associated with more aggressive tumor behavior and progression of the disease, which can help improve potential treatment in patients with LSCC. Further investigations are needed to understand the biological function of IDH1 R132H and larger sample size to confirm our findings.
Collapse
Affiliation(s)
- Nasrin Shayanfar
- Department of Pathology, Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Ali Zare-Mirzaie
- Department of Pathology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mahsa Mohammadpour
- Department of Medical School, Tehran University of Medical Sciences, Tehran, Iran
| | - Ensieh Jafari
- Department of Biology, Faculty of Basic Science, Noor Danesh University, Isfahan, Iran
| | - Amirhosein Mehrtash
- Molecular Medicine Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Nikoo Emtiazi
- Department of Pathology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Fatemeh Tajik
- Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
9
|
Avsar T, Kose TB, Oksal MD, Turan G, Kilic T. IDH1 mutation activates mTOR signaling pathway, promotes cell proliferation and invasion in glioma cells. Mol Biol Rep 2022; 49:9241-9249. [DOI: 10.1007/s11033-022-07750-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/29/2022] [Accepted: 06/24/2022] [Indexed: 11/24/2022]
|
10
|
Using AI-Based Evolutionary Algorithms to Elucidate Adult Brain Tumor (Glioma) Etiology Associated with IDH1 for Therapeutic Target Identification. Curr Issues Mol Biol 2022; 44:2982-3000. [PMID: 35877430 PMCID: PMC9323620 DOI: 10.3390/cimb44070206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 06/23/2022] [Accepted: 06/27/2022] [Indexed: 11/26/2022] Open
Abstract
Adult brain tumors (glioma) represent a cancer of unmet need where standard-of-care is non-curative; thus, new therapies are urgently needed. It is unclear whether isocitrate dehydrogenases (IDH1/2) when not mutated have any role in gliomagenesis or tumor growth. Nevertheless, IDH1 is overexpressed in glioblastoma (GBM), which could impact upon cellular metabolism and epigenetic reprogramming. This study characterizes IDH1 expression and associated genes and pathways. A novel biomarker discovery pipeline using artificial intelligence (evolutionary algorithms) was employed to analyze IDH-wildtype adult gliomas from the TCGA LGG-GBM cohort. Ninety genes whose expression correlated with IDH1 expression were identified from: (1) All gliomas, (2) primary GBM, and (3) recurrent GBM tumors. Genes were overrepresented in ubiquitin-mediated proteolysis, focal adhesion, mTOR signaling, and pyruvate metabolism pathways. Other non-enriched pathways included O-glycan biosynthesis, notch signaling, and signaling regulating stem cell pluripotency (PCGF3). Potential prognostic (TSPYL2, JAKMIP1, CIT, TMTC1) and two diagnostic (MINK1, PLEKHM3) biomarkers were downregulated in GBM. Their gene expression and methylation were negatively and positively correlated with IDH1 expression, respectively. Two diagnostic biomarkers (BZW1, RCF2) showed the opposite trend. Prognostic genes were not impacted by high frequencies of molecular alterations and only one (TMTC1) could be validated in another cohort. Genes with mechanistic links to IDH1 were involved in brain neuronal development, cell proliferation, cytokinesis, and O-mannosylation as well as tumor suppression and anaplerosis. Results highlight metabolic vulnerabilities and therapeutic targets for use in future clinical trials.
Collapse
|
11
|
Gamma-glutamyltransferase of Helicobacter pylori alters the proliferation, migration, and pluripotency of mesenchymal stem cells by affecting metabolism and methylation status. J Microbiol 2022; 60:627-639. [DOI: 10.1007/s12275-022-1575-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 03/02/2022] [Accepted: 03/07/2022] [Indexed: 02/07/2023]
|
12
|
Ying M, You D, Zhu X, Cai L, Zeng S, Hu X. Lactate and glutamine support NADPH generation in cancer cells under glucose deprived conditions. Redox Biol 2021; 46:102065. [PMID: 34293554 PMCID: PMC8321918 DOI: 10.1016/j.redox.2021.102065] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 07/05/2021] [Accepted: 07/06/2021] [Indexed: 11/18/2022] Open
Abstract
Although glucose, through pentose phosphate pathway (PPP), is the main source to generate NADPH, solid tumors are often deprived of glucose, hence alternative metabolic pathways to maintain NADPH homeostasis in cancer cells are required. Here, we report that lactate and glutamine support NADPH production via isocitrate dehydrogenase 1 (IDH1) and malic enzyme 1 (ME1), respectively, under glucose-deprived conditions. Isotopic tracing demonstrates that lactate participates in the formation of isocitrate. Malate derived from glutamine in mitochondria shuttles to cytosol to produce NADPH. In cells cultured in the absence of glucose, knockout of IDH1 and ME1 decreases NADPH/NADP+ and GSH/GSSG, increases ROS level and facilitates cell necrosis. In 4T1 murine breast tumors, knockout of ME1 retards tumor growth in vivo, with combined ME1/IDH1 knockout more strongly suppressing tumor growth. Our findings reveal two alternative NADPH-producing pathways that cancer cells use to resist glucose starvation, reflecting the metabolic plasticity and flexibility of cancer cells adapting to nutrition stress.
Collapse
Affiliation(s)
- Minfeng Ying
- Cancer Institute (Key Laboratory for Cancer Intervention and Prevention, China National Ministry of Education, Zhejiang Provincial Key Laboratory of Molecular Biology in Medical Sciences), The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, Zhejiang, China
| | - Duo You
- Cancer Institute (Key Laboratory for Cancer Intervention and Prevention, China National Ministry of Education, Zhejiang Provincial Key Laboratory of Molecular Biology in Medical Sciences), The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, Zhejiang, China
| | - Xiaobing Zhu
- Cancer Institute (Key Laboratory for Cancer Intervention and Prevention, China National Ministry of Education, Zhejiang Provincial Key Laboratory of Molecular Biology in Medical Sciences), The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, Zhejiang, China
| | - Limeng Cai
- Cancer Institute (Key Laboratory for Cancer Intervention and Prevention, China National Ministry of Education, Zhejiang Provincial Key Laboratory of Molecular Biology in Medical Sciences), The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, Zhejiang, China
| | - Siying Zeng
- Cancer Institute (Key Laboratory for Cancer Intervention and Prevention, China National Ministry of Education, Zhejiang Provincial Key Laboratory of Molecular Biology in Medical Sciences), The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, Zhejiang, China
| | - Xun Hu
- Cancer Institute (Key Laboratory for Cancer Intervention and Prevention, China National Ministry of Education, Zhejiang Provincial Key Laboratory of Molecular Biology in Medical Sciences), The Second Affiliated Hospital, Zhejiang University School of Medicine, 310009, Hangzhou, Zhejiang, China.
| |
Collapse
|
13
|
Coelho BP, Fernandes CFDL, Boccacino JM, Souza MCDS, Melo-Escobar MI, Alves RN, Prado MB, Iglesia RP, Cangiano G, Mazzaro GLR, Lopes MH. Multifaceted WNT Signaling at the Crossroads Between Epithelial-Mesenchymal Transition and Autophagy in Glioblastoma. Front Oncol 2020; 10:597743. [PMID: 33312955 PMCID: PMC7706883 DOI: 10.3389/fonc.2020.597743] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 10/19/2020] [Indexed: 12/17/2022] Open
Abstract
Tumor cells can employ epithelial-mesenchymal transition (EMT) or autophagy in reaction to microenvironmental stress. Importantly, EMT and autophagy negatively regulate each other, are able to interconvert, and both have been shown to contribute to drug-resistance in glioblastoma (GBM). EMT has been considered one of the mechanisms that confer invasive properties to GBM cells. Autophagy, on the other hand, may show dual roles as either a GBM-promoter or GBM-suppressor, depending on microenvironmental cues. The Wingless (WNT) signaling pathway regulates a plethora of developmental and biological processes such as cellular proliferation, adhesion and motility. As such, GBM demonstrates deregulation of WNT signaling in favor of tumor initiation, proliferation and invasion. In EMT, WNT signaling promotes induction and stabilization of different EMT activators. WNT activity also represses autophagy, while nutrient deprivation induces β-catenin degradation via autophagic machinery. Due to the importance of the WNT pathway to GBM, and the role of WNT signaling in EMT and autophagy, in this review we highlight the effects of the WNT signaling in the regulation of both processes in GBM, and discuss how the crosstalk between EMT and autophagy may ultimately affect tumor biology.
Collapse
Affiliation(s)
- Bárbara Paranhos Coelho
- Laboratory of Neurobiology and Stem Cells, Institute of Biomedical Sciences, Department of Cell and Developmental Biology, University of São Paulo, São Paulo, Brazil
| | - Camila Felix de Lima Fernandes
- Laboratory of Neurobiology and Stem Cells, Institute of Biomedical Sciences, Department of Cell and Developmental Biology, University of São Paulo, São Paulo, Brazil
| | - Jacqueline Marcia Boccacino
- Laboratory of Neurobiology and Stem Cells, Institute of Biomedical Sciences, Department of Cell and Developmental Biology, University of São Paulo, São Paulo, Brazil
| | - Maria Clara da Silva Souza
- Laboratory of Neurobiology and Stem Cells, Institute of Biomedical Sciences, Department of Cell and Developmental Biology, University of São Paulo, São Paulo, Brazil
| | - Maria Isabel Melo-Escobar
- Laboratory of Neurobiology and Stem Cells, Institute of Biomedical Sciences, Department of Cell and Developmental Biology, University of São Paulo, São Paulo, Brazil
| | - Rodrigo Nunes Alves
- Laboratory of Neurobiology and Stem Cells, Institute of Biomedical Sciences, Department of Cell and Developmental Biology, University of São Paulo, São Paulo, Brazil
| | - Mariana Brandão Prado
- Laboratory of Neurobiology and Stem Cells, Institute of Biomedical Sciences, Department of Cell and Developmental Biology, University of São Paulo, São Paulo, Brazil
| | - Rebeca Piatniczka Iglesia
- Laboratory of Neurobiology and Stem Cells, Institute of Biomedical Sciences, Department of Cell and Developmental Biology, University of São Paulo, São Paulo, Brazil
| | - Giovanni Cangiano
- Laboratory of Neurobiology and Stem Cells, Institute of Biomedical Sciences, Department of Cell and Developmental Biology, University of São Paulo, São Paulo, Brazil
| | - Giulia La Rocca Mazzaro
- Laboratory of Neurobiology and Stem Cells, Institute of Biomedical Sciences, Department of Cell and Developmental Biology, University of São Paulo, São Paulo, Brazil
| | - Marilene Hohmuth Lopes
- Laboratory of Neurobiology and Stem Cells, Institute of Biomedical Sciences, Department of Cell and Developmental Biology, University of São Paulo, São Paulo, Brazil
| |
Collapse
|
14
|
Whitehouse JP, Howlett M, Hii H, Mayoh C, Wong M, Barahona P, Ajuyah P, White CL, Buntine MK, Dyke JM, Lee S, Valvi S, Stanley J, Andradas C, Carline B, Kuchibhotla M, Ekert PG, Cowley MJ, Gottardo NG, Endersby R. A Novel Orthotopic Patient-Derived Xenograft Model of Radiation-Induced Glioma Following Medulloblastoma. Cancers (Basel) 2020; 12:cancers12102937. [PMID: 33053751 PMCID: PMC7600047 DOI: 10.3390/cancers12102937] [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: 09/21/2020] [Revised: 10/08/2020] [Accepted: 10/09/2020] [Indexed: 12/11/2022] Open
Abstract
Radiation-induced glioma (RIG) is a highly aggressive brain cancer arising as a consequence of radiation therapy. We report a case of RIG that arose in the brain stem following treatment for paediatric medulloblastoma, and the development and characterisation of a matched orthotopic patient-derived xenograft (PDX) model (TK-RIG915). Patient and PDX tumours were analysed using DNA methylation profiling, whole genome sequencing (WGS) and RNA sequencing. While initially thought to be a diffuse intrinsic pontine glioma (DIPG) based on disease location, results from methylation profiling and WGS were not consistent with this diagnosis. Furthermore, clustering analyses based on RNA expression suggested the tumours were distinct from primary DIPG. Additional gene expression analysis demonstrated concordance with a published RIG expression profile. Multiple genetic alterations that enhance PI3K/AKT and Ras/Raf/MEK/ERK signalling were discovered in TK-RIG915 including an activating mutation in PIK3CA, upregulation of PDGFRA and AKT2, inactivating mutations in NF1, and a gain-of-function mutation in PTPN11. Additionally, deletion of CDKN2A/B, increased IDH1 expression, and decreased ARID1A expression were observed. Detection of phosphorylated S6, 4EBP1 and ERK via immunohistochemistry confirmed PI3K pathway and ERK activation. Here, we report one of the first PDX models for RIG, which recapitulates the patient disease and is molecularly distinct from primary brain stem glioma. Genetic interrogation of this model has enabled the identification of potential therapeutic vulnerabilities in this currently incurable disease.
Collapse
Affiliation(s)
- Jacqueline P. Whitehouse
- Brain Tumour Research Program, Telethon Kids Institute, Nedlands 6009, Australia; (J.P.W.); (M.H.); (H.H.); (S.V.); (J.S.); (C.A.); (B.C.); (M.K.); (N.G.G.)
- Centre for Child Health Research, University of Western Australia, Nedlands 6009, Australia
| | - Meegan Howlett
- Brain Tumour Research Program, Telethon Kids Institute, Nedlands 6009, Australia; (J.P.W.); (M.H.); (H.H.); (S.V.); (J.S.); (C.A.); (B.C.); (M.K.); (N.G.G.)
- Centre for Child Health Research, University of Western Australia, Nedlands 6009, Australia
| | - Hilary Hii
- Brain Tumour Research Program, Telethon Kids Institute, Nedlands 6009, Australia; (J.P.W.); (M.H.); (H.H.); (S.V.); (J.S.); (C.A.); (B.C.); (M.K.); (N.G.G.)
| | - Chelsea Mayoh
- Children’s Cancer Institute, Lowy Cancer Centre, UNSW Sydney, Kensington 2033, Australia; (C.M.); (M.W.); (P.B.); (P.A.); (P.G.E.); (M.J.C.)
- School of Women’s and Children’s Health, UNSW Sydney, Kensington 2033, Australia
| | - Marie Wong
- Children’s Cancer Institute, Lowy Cancer Centre, UNSW Sydney, Kensington 2033, Australia; (C.M.); (M.W.); (P.B.); (P.A.); (P.G.E.); (M.J.C.)
- School of Women’s and Children’s Health, UNSW Sydney, Kensington 2033, Australia
| | - Paulette Barahona
- Children’s Cancer Institute, Lowy Cancer Centre, UNSW Sydney, Kensington 2033, Australia; (C.M.); (M.W.); (P.B.); (P.A.); (P.G.E.); (M.J.C.)
| | - Pamela Ajuyah
- Children’s Cancer Institute, Lowy Cancer Centre, UNSW Sydney, Kensington 2033, Australia; (C.M.); (M.W.); (P.B.); (P.A.); (P.G.E.); (M.J.C.)
| | - Christine L. White
- Genetics and Molecular Pathology Laboratory, Hudson Institute of Medical Research, Clayton 3168, Victoria, Australia; (C.L.W.); (M.K.B.)
- Department of Molecular and Translational Science, Monash University, Melbourne 3168, Victoria, Australia
| | - Molly K. Buntine
- Genetics and Molecular Pathology Laboratory, Hudson Institute of Medical Research, Clayton 3168, Victoria, Australia; (C.L.W.); (M.K.B.)
- Department of Molecular and Translational Science, Monash University, Melbourne 3168, Victoria, Australia
| | - Jason M. Dyke
- Department of Neuropathology, PathWest Laboratory Medicine, Royal Perth Hospital, Perth 6000, Australia;
- Pathology and Laboratory Medicine, University of Western Australia, Nedlands 6009, Australia
| | - Sharon Lee
- Department of Neurosurgery, Perth Children’s Hospital, Nedlands 6009, Australia;
| | - Santosh Valvi
- Brain Tumour Research Program, Telethon Kids Institute, Nedlands 6009, Australia; (J.P.W.); (M.H.); (H.H.); (S.V.); (J.S.); (C.A.); (B.C.); (M.K.); (N.G.G.)
- Department of Paediatric and Adolescent Oncology/Haematology, Perth Children’s Hospital, Nedlands 6009, Australia
- Division of Paediatrics, University of Western Australia Medical School, Nedlands 6009, Australia
| | - Jason Stanley
- Brain Tumour Research Program, Telethon Kids Institute, Nedlands 6009, Australia; (J.P.W.); (M.H.); (H.H.); (S.V.); (J.S.); (C.A.); (B.C.); (M.K.); (N.G.G.)
- Centre for Child Health Research, University of Western Australia, Nedlands 6009, Australia
| | - Clara Andradas
- Brain Tumour Research Program, Telethon Kids Institute, Nedlands 6009, Australia; (J.P.W.); (M.H.); (H.H.); (S.V.); (J.S.); (C.A.); (B.C.); (M.K.); (N.G.G.)
- Centre for Child Health Research, University of Western Australia, Nedlands 6009, Australia
| | - Brooke Carline
- Brain Tumour Research Program, Telethon Kids Institute, Nedlands 6009, Australia; (J.P.W.); (M.H.); (H.H.); (S.V.); (J.S.); (C.A.); (B.C.); (M.K.); (N.G.G.)
| | - Mani Kuchibhotla
- Brain Tumour Research Program, Telethon Kids Institute, Nedlands 6009, Australia; (J.P.W.); (M.H.); (H.H.); (S.V.); (J.S.); (C.A.); (B.C.); (M.K.); (N.G.G.)
| | - Paul G. Ekert
- Children’s Cancer Institute, Lowy Cancer Centre, UNSW Sydney, Kensington 2033, Australia; (C.M.); (M.W.); (P.B.); (P.A.); (P.G.E.); (M.J.C.)
- School of Women’s and Children’s Health, UNSW Sydney, Kensington 2033, Australia
- Murdoch Children’s Research Institute, Royal Children’s Hospital, Parkville 3052, Victoria, Australia
- Peter MacCallum Cancer Centre, Melbourne 3000, Victoria, Australia
| | - Mark J. Cowley
- Children’s Cancer Institute, Lowy Cancer Centre, UNSW Sydney, Kensington 2033, Australia; (C.M.); (M.W.); (P.B.); (P.A.); (P.G.E.); (M.J.C.)
- School of Women’s and Children’s Health, UNSW Sydney, Kensington 2033, Australia
| | - Nicholas G. Gottardo
- Brain Tumour Research Program, Telethon Kids Institute, Nedlands 6009, Australia; (J.P.W.); (M.H.); (H.H.); (S.V.); (J.S.); (C.A.); (B.C.); (M.K.); (N.G.G.)
- Centre for Child Health Research, University of Western Australia, Nedlands 6009, Australia
- Department of Paediatric and Adolescent Oncology/Haematology, Perth Children’s Hospital, Nedlands 6009, Australia
| | - Raelene Endersby
- Brain Tumour Research Program, Telethon Kids Institute, Nedlands 6009, Australia; (J.P.W.); (M.H.); (H.H.); (S.V.); (J.S.); (C.A.); (B.C.); (M.K.); (N.G.G.)
- Centre for Child Health Research, University of Western Australia, Nedlands 6009, Australia
- Correspondence:
| |
Collapse
|