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Chai X, Zhang Y, Zhang W, Feng K, Jiang Y, Zhu A, Chen X, Di L, Wang R. Tumor Metabolism: A New Field for the Treatment of Glioma. Bioconjug Chem 2024; 35:1116-1141. [PMID: 39013195 DOI: 10.1021/acs.bioconjchem.4c00287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2024]
Abstract
The clinical treatment of glioma remains relatively immature. Commonly used clinical treatments for gliomas are surgery combined with chemotherapy and radiotherapy, but there is a problem of drug resistance. In addition, immunotherapy and targeted therapies also suffer from the problem of immune evasion. The advent of metabolic therapy holds immense potential for advancing more efficacious and tolerable therapies against this aggressive disease. Metabolic therapy alters the metabolic processes of tumor cells at the molecular level to inhibit tumor growth and spread, and lead to better outcomes for patients with glioma that are insensitive to conventional treatments. Moreover, compared with conventional therapy, it has less impact on normal cells, less toxicity and side effects, and higher safety. The objective of this review is to examine the changes in metabolic characteristics throughout the development of glioma, enumerate the current methodologies employed for studying tumor metabolism, and highlight the metabolic reprogramming pathways of glioma along with their potential molecular mechanisms. Importantly, it seeks to elucidate potential metabolic targets for glioblastoma (GBM) therapy and summarize effective combination treatment strategies based on various studies.
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Affiliation(s)
- Xiaoqian Chai
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
- Jiangsu Provincial TCM Engineering Technology Research Center of High Efficient Drug Delivery System, Nanjing 210023, China
| | - Yingjie Zhang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
- Jiangsu Provincial TCM Engineering Technology Research Center of High Efficient Drug Delivery System, Nanjing 210023, China
| | - Wen Zhang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
- Jiangsu Provincial TCM Engineering Technology Research Center of High Efficient Drug Delivery System, Nanjing 210023, China
| | - Kuanhan Feng
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
- Jiangsu Provincial TCM Engineering Technology Research Center of High Efficient Drug Delivery System, Nanjing 210023, China
| | - Yingyu Jiang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
- Jiangsu Provincial TCM Engineering Technology Research Center of High Efficient Drug Delivery System, Nanjing 210023, China
| | - Anran Zhu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
- Jiangsu Provincial TCM Engineering Technology Research Center of High Efficient Drug Delivery System, Nanjing 210023, China
| | - Xiaojin Chen
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
- Jiangsu Provincial TCM Engineering Technology Research Center of High Efficient Drug Delivery System, Nanjing 210023, China
| | - Liuqing Di
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
- Jiangsu Provincial TCM Engineering Technology Research Center of High Efficient Drug Delivery System, Nanjing 210023, China
| | - Ruoning Wang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
- Jiangsu Provincial TCM Engineering Technology Research Center of High Efficient Drug Delivery System, Nanjing 210023, China
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Zou L, Wang W, Huang W, Ni X, Li W, Cheng Y, Tian Q, Liu L, Zhu F, Duan Q. FYN-mediated phosphorylation of BCKDK at Y151 promotes GBM proliferation by increasing the oncogenic metabolite N-acetyl-L-alanine. Heliyon 2024; 10:e33663. [PMID: 39170503 PMCID: PMC11336342 DOI: 10.1016/j.heliyon.2024.e33663] [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: 10/10/2023] [Revised: 06/20/2024] [Accepted: 06/25/2024] [Indexed: 08/23/2024] Open
Abstract
Branched chain α-keto acid dehydrogenase kinase (BCKDK) is a key enzyme involved in the metabolism of branched-chain amino acids (BCAAs). Its potential as a therapeutic target and prognostic factor for a variety of cancers has been widely reported. In this study, we investigated the expression of BCKDK in clinical glioma samples and found that BCKDK was significantly overexpressed in glioblastoma (GBM) and was associated with its poor prognosis. We further found that BCKDK is phosphorylated by tyrosine protein kinase Fyn at Y151, which increases its catalytic activity and stability, and demonstrate through in vivo and in vitro experiments that BCKDK phosphorylation promotes GBM cell proliferation. In addition, we found that the levels of the metabolite N-acetyl-L-alanine (NAAL) in GBM cells with high BCKDK were higher than those in the silencing group, and silencing or inhibition of BCKDK promotes the expression of ACY1, an enzyme that catalyzes the hydrolysis of NAAL into acetic acid and alanine. Exogenous addition of NAAL can activate the ERK signaling pathway and promote the proliferation of GBM cells. Taken together, we identified a novel mechanism of BCKDK activation and found NAAL is a novel oncogenic metabolite. Our study confirms the importance of the Fyn-BCKDK-ACY1-NAAL signalling axis in the development of GBM and suggests that p-BCKDK (Y151) and NAAL can serve as potential predictors of GBM progression and prognosis.
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Affiliation(s)
- Ling Zou
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- College of Biomedicine and Health and College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Wei Wang
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wenda Huang
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, China
| | - Xiaofang Ni
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wensheng Li
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yue Cheng
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Qin Tian
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Lin Liu
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Feng Zhu
- Translational Medicine Center, Huaihe Hospital of Henan University, Kaifeng, Henan, 475000, China
- The Zhongzhou Laboratory for Integrative Biology, Zhengzhou, Henan, 450000, China
| | - Qiuhong Duan
- Translational Medicine Center, Huaihe Hospital of Henan University, Kaifeng, Henan, 475000, China
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- The Zhongzhou Laboratory for Integrative Biology, Zhengzhou, Henan, 450000, China
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Chen K, Lin Z, Shen Y, Lin Y, Chen J, Eslick GD, Chen Y, Xu Y, Xin Y. A novel amino acid metabolism-related gene signature to predict the overall survival of esophageal squamous cell carcinoma patients. J Thorac Dis 2024; 16:3967-3989. [PMID: 38983159 PMCID: PMC11228740 DOI: 10.21037/jtd-24-818] [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: 05/17/2024] [Accepted: 06/24/2024] [Indexed: 07/11/2024]
Abstract
Background Esophageal squamous cell carcinoma (ESCC) has a poor early detection rate, prognosis, and survival rate. Effective prognostic markers are urgently needed to assist in the prediction of ESCC treatment outcomes. There is accumulating evidence of a strong relationship between cancer cell growth and amino acid metabolism. This study aims to determine the relationship between amino acid metabolism and ESCC prognosis. Methods This study comprehensively evaluates the association between amino acid metabolism-related gene (AAMRG) expression profiles and the prognosis of ESCC patients based on data from The Cancer Genome Atlas (TCGA) and the Gene Expression Omnibus (GEO) databases. Real-time quantitative polymerase chain reaction (RT-qPCR) was used to verify the expression of prognosis-related genes. Results A univariate Cox regression analysis of TCGA data identified 18 prognosis-related AAMRGs. The gene expression profiles of 90 ESCC tumor and normal tissues were obtained from the GSE20347 and GSE67269 datasets. Two differently expressed genes (DEGs) were considered as ESCC prognosis-related genes; and they were branched-chain amino acid transaminase 1 (BCAT1) and methylmalonic aciduria and homocystinuria type C protein (MMACHC). These two AAMRGs were used to develop a novel AAMRG-related gene signature to predict 1- and 2-year prognostic risk in ESCC patients. Both BCAT1 and MMACHC expression were verified by RT-qPCR. A prognostic nomogram that incorporated clinical factors and BCAT1 and MMACHC gene expression was constructed, and the calibration plots showed that it had good prognostic performance. Conclusions The AAMRG signature established in our study is efficient and could be used in clinical settings to predict the early prognosis of ESCC patients.
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Affiliation(s)
- Kebing Chen
- The First Clinical Medical College, Xuzhou Medical University, Xuzhou, China
| | - Zhizhong Lin
- Department of Radiation Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, China
| | - Yongshi Shen
- Department of Thoracic Surgery, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, China
| | - Yijin Lin
- Department of Thoracic Surgery, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, China
| | - Juhui Chen
- Department of Radiation Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, China
| | - Guy D. Eslick
- Australian Paediatric Surveillance Unit (APSU), The University of Sydney, The Children’s Hospital, Westmead, NSW, Australia
| | - Yuanmei Chen
- Department of Thoracic Surgery, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, China
| | - Yuanji Xu
- Department of Radiation Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, China
| | - Yong Xin
- Department of Radiation Oncology, Affiliated Hospital of Xuzhou Medical College, Xuzhou, China
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Wang W, Li Y, Tang L, Shi Y, Li W, Zou L, Zhang L, Cheng Y, Yuan Z, Zhu F, Duan Q. Cross-talk between BCKDK-mediated phosphorylation and STUB1-dependent ubiquitination degradation of BCAT1 promotes GBM progression. Cancer Lett 2024; 591:216849. [PMID: 38621458 DOI: 10.1016/j.canlet.2024.216849] [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: 01/15/2024] [Revised: 03/18/2024] [Accepted: 04/01/2024] [Indexed: 04/17/2024]
Abstract
Branched-chain amino acid transferase 1 (BCAT1) is highly expressed in multiple cancers and is associated with poor prognosis, particularly in glioblastoma (GBM). However, the post-translational modification (PTM) mechanism of BCAT1 is unknown. Here, we investigated the cross-talk mechanisms between phosphorylation and ubiquitination modifications in regulating BCAT1 activity and stability. We found that BCAT1 is phosphorylated by branched chain ketoacid dehydrogenase kinase (BCKDK) at S5, S9, and T312, which increases its catalytic and antioxidant activity and stability. STUB1 (STIP1 homology U-box-containing protein 1), the first we found and reported E3 ubiquitin ligase of BCAT1, can also be phosphorylated by BCKDK at the S19 site, which disrupts the interaction with BCAT1 and inhibits its degradation. In addition, we demonstrate through in vivo and in vitro experiments that BCAT1 phosphorylation inhibiting its ubiquitination at multiple sites is associated with GBM proliferation and that inhibition of the BCKDK-BCAT1 axis enhances the sensitivity to temozolomide (TMZ). Overall, we identified novel mechanisms for the regulation of BCAT1 modification and elucidated the importance of the BCKDK-STUB1-BCAT1 axis in GBM progression.
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Affiliation(s)
- Wei Wang
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China.
| | - Youwei Li
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China; Department of Pain Management, Affiliated ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, 210009, China.
| | - Liu Tang
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China.
| | - Yue Shi
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China.
| | - Wensheng Li
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China.
| | - Ling Zou
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China.
| | - Liyuan Zhang
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China.
| | - Yue Cheng
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China.
| | - Zheng Yuan
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China.
| | - Feng Zhu
- Translational Medicine Center, Huaihe Hospital of Henan University, Kaifeng, Henan, 475000, China; The Zhongzhou Laboratory for Integrative Biology, Zhengzhou, Henan, 450000, China; Medical and Industry Crossover Research Institute of Medical College, Henan University, Kaifeng, Henan, 475000, China.
| | - Qiuhong Duan
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China; Translational Medicine Center, Huaihe Hospital of Henan University, Kaifeng, Henan, 475000, China; The Zhongzhou Laboratory for Integrative Biology, Zhengzhou, Henan, 450000, China; Medical and Industry Crossover Research Institute of Medical College, Henan University, Kaifeng, Henan, 475000, China.
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Zhao J, Ma X, Gao P, Han X, Zhao P, Xie F, Liu M. Advancing glioblastoma treatment by targeting metabolism. Neoplasia 2024; 51:100985. [PMID: 38479191 PMCID: PMC10950892 DOI: 10.1016/j.neo.2024.100985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 03/04/2024] [Indexed: 03/24/2024]
Abstract
Alterations in cellular metabolism are important hallmarks of glioblastoma(GBM). Metabolic reprogramming is a critical feature as it meets the higher nutritional demand of tumor cells, including proliferation, growth, and survival. Many genes, proteins, and metabolites associated with GBM metabolism reprogramming have been found to be aberrantly expressed, which may provide potential targets for cancer treatment. Therefore, it is becoming increasingly important to explore the role of internal and external factors in metabolic regulation in order to identify more precise therapeutic targets and diagnostic markers for GBM. In this review, we define the metabolic characteristics of GBM, investigate metabolic specificities such as targetable vulnerabilities and therapeutic resistance, as well as present current efforts to target GBM metabolism to improve the standard of care.
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Affiliation(s)
- Jinyi Zhao
- College of Chemistry and Life Science, Beijing University of Technology, Beijing, China; Beijing Molecular Hydrogen Research Center, Beijing, China
| | - Xuemei Ma
- College of Chemistry and Life Science, Beijing University of Technology, Beijing, China; Beijing Molecular Hydrogen Research Center, Beijing, China
| | - Peixian Gao
- College of Chemistry and Life Science, Beijing University of Technology, Beijing, China; Beijing Molecular Hydrogen Research Center, Beijing, China
| | - Xueqi Han
- College of Chemistry and Life Science, Beijing University of Technology, Beijing, China; Beijing Molecular Hydrogen Research Center, Beijing, China
| | - Pengxiang Zhao
- College of Chemistry and Life Science, Beijing University of Technology, Beijing, China; Beijing Molecular Hydrogen Research Center, Beijing, China
| | - Fei Xie
- College of Chemistry and Life Science, Beijing University of Technology, Beijing, China; Beijing Molecular Hydrogen Research Center, Beijing, China
| | - Mengyu Liu
- College of Chemistry and Life Science, Beijing University of Technology, Beijing, China; Beijing Molecular Hydrogen Research Center, Beijing, China.
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Shin E, Kim B, Kang H, Lee H, Park J, Kang J, Park E, Jo S, Kim HY, Lee JS, Lee JM, Youn H, Youn B. Mitochondrial glutamate transporter SLC25A22 uni-directionally export glutamate for metabolic rewiring in radioresistant glioblastoma. Int J Biol Macromol 2023; 253:127511. [PMID: 37866557 DOI: 10.1016/j.ijbiomac.2023.127511] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/23/2023] [Accepted: 10/11/2023] [Indexed: 10/24/2023]
Abstract
Glioblastoma Multiforme (GBM) is a malignant primary brain tumor. Radiotherapy, one of the standard treatments for GBM patients, could induce GBM radioresistance via rewiring cellular metabolism. However, the precise mechanism attributing to GBM radioresistance or targeting strategies to overcome GBM radioresistance are lacking. Here, we demonstrate that SLC25A22, a mitochondrial bi-directional glutamate transporter, is upregulated and showed uni-directionality from mitochondria to cytosol in radioresistant GBM cells, resulting in accumulating cytosolic glutamate. However, mitochondrial glutaminolysis-mediated TCA cycle metabolites and OCR are maintained constantly. The accumulated cytosolic glutamate enhances the glutathione (GSH) production and proline synthesis in radioresistant GBM cells. Increased GSH protects cells against ionizing radiation (IR)-induced reactive oxygen species (ROS) whereas increased proline, a rate-limiting substrate for collagen biosynthesis, induces extracellular matrix (ECM) remodeling, leading to GBM invasive phenotypes. Finally, we discover that genetic inhibition of SLC25A22 using miR-184 mimic decreases GBM radioresistance and aggressiveness both in vitro and in vivo. Collectively, our study suggests that SLC25A22 upregulation confers GBM radioresistance by rewiring glutamate metabolism, and SLC25A22 could be a significant therapeutic target to overcome GBM radioresistance.
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Affiliation(s)
- Eunguk Shin
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Republic of Korea
| | - Byeongsoo Kim
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Republic of Korea
| | - Hyunkoo Kang
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Republic of Korea
| | - Haksoo Lee
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Republic of Korea
| | - Junhyung Park
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Republic of Korea
| | - JiHoon Kang
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory, Emory University School of Medicine, Atlanta, GA 30322, USA
| | | | - Sunmi Jo
- Department of Radiation Oncology, Haeundae Paik Hospital, Inje University School of Medicine, Busan 48108, Republic of Korea
| | - Hae Yu Kim
- Department of Neurosurgery, Haeundae Paik Hospital, Inje University College of Medicine, Busan 48108, Republic of Korea
| | - Jung Sub Lee
- Department of Orthopaedic Surgery, Biomedical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Busan 49241, Republic of Korea
| | - Jae-Myung Lee
- Department of Naval Architecture and Ocean Engineering, Pusan National University, Busan 46241, Republic of Korea
| | - HyeSook Youn
- Department of Integrative Bioscience and Biotechnology, Sejong University, Seoul 05006, Republic of Korea
| | - BuHyun Youn
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Republic of Korea; Nuclear Science Research Institute, Pusan National University, Busan 46241, Republic of Korea; Department of Biological Sciences, Pusan National University, Busan 46241, Republic of Korea.
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Jiao Y, Peng X, Wang Y, Hao Z, Chen L, Wu M, Zhang Y, Li J, Li W, Zhan X. Malignant ascites supernatant enhances the proliferation of gastric cancer cells partially via the upregulation of asparagine synthetase. Oncol Lett 2023; 26:418. [PMID: 37664666 PMCID: PMC10472050 DOI: 10.3892/ol.2023.14005] [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: 02/15/2023] [Accepted: 06/09/2023] [Indexed: 09/05/2023] Open
Abstract
Malignant ascites (MA) is a common manifestation of advanced gastric cancer (GC) with peritoneal metastasis (PM), which usually indicates a poor prognosis. The present study aimed to explore the effects of MA, a unique microenvironment of PM, on the proliferation of cancer cells and investigate the underlying mechanisms. Ex vivo experiments demonstrated that GC cells treated with MA exhibited enhanced proliferation. RNA sequencing indicated that asparagine synthetase (ASNS) was one of the differentially expressed genes in GC cells following incubation with MAs. Furthermore, the present study suggested that MA induced an upregulation of ASNS expression and the stimulatory effect of MA on cancer cell proliferation was alleviated upon ASNS downregulation. Activating transcription factor 4 (ATF4), a pivotal transcription factor regulating ASNS, was upregulated when cells were treated with MA supernatant. After ATF4 knockdown, the proliferation of MA-treated GC cells and the expression of ASNS decreased. In addition, the decline in the proliferation of the ATF4-downregulated AGS GC cell line was rescued by ASNS upregulation. The findings indicated that MA could promote the proliferation of GC cells via activation of the ATF4-ASNS axis. Hence, it may be a potential target for treating GC with PM and MA.
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Affiliation(s)
- Yuan Jiao
- Department of Oncology, Changhai Hospital, Naval Medical University, Shanghai 200433, P.R. China
| | - Xiaobo Peng
- Department of Oncology, Changhai Hospital, Naval Medical University, Shanghai 200433, P.R. China
| | - Yujie Wang
- Department of Oncology, Changhai Hospital, Naval Medical University, Shanghai 200433, P.R. China
| | - Zhibin Hao
- Department of Oncology, Changhai Hospital, Naval Medical University, Shanghai 200433, P.R. China
| | - Ling Chen
- Department of Oncology, Changhai Hospital, Naval Medical University, Shanghai 200433, P.R. China
| | - Meihong Wu
- Department of Oncology, Changhai Hospital, Naval Medical University, Shanghai 200433, P.R. China
| | - Yingyi Zhang
- Department of Oncology, Changhai Hospital, Naval Medical University, Shanghai 200433, P.R. China
| | - Jie Li
- Department of Oncology, Changhai Hospital, Naval Medical University, Shanghai 200433, P.R. China
| | - Wenlin Li
- Department of Cell Biology, Naval Medical University, Shanghai 200433, P.R. China
| | - Xianbao Zhan
- Department of Oncology, Changhai Hospital, Naval Medical University, Shanghai 200433, P.R. China
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Fan H, Zhang S, Yuan Y, Chen S, Li W, Wang Z, Xiang Y, Li J, Ma X, Liu Y. Glutamine metabolism-related genes predict prognosis and reshape tumor microenvironment immune characteristics in diffuse gliomas. Front Neurol 2023; 14:1104738. [PMID: 36970537 PMCID: PMC10036600 DOI: 10.3389/fneur.2023.1104738] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 02/15/2023] [Indexed: 03/12/2023] Open
Abstract
BackgroundDiffuse gliomas possess a kind of malignant brain tumor with high mortality. Glutamine represents the most abundant and versatile amino acid in the body. Glutamine not only plays an important role in cell metabolism but also involves in cell survival and malignancies progression. Recent studies indicate that glutamine could also affect the metabolism of immune cells in the tumor microenvironment (TME).Materials and methodsThe transcriptome data and clinicopathological information of patients with glioma were acquired from TCGA, CGGA, and West China Hospital (WCH). The glutamine metabolism-related genes (GMRGs) were retrieved from the Molecular Signature Database. Consensus clustering analysis was used to discover expression patterns of GMRGs, and glutamine metabolism risk scores (GMRSs) were established to model tumor aggressiveness-related GMRG expression signature. ESTIMATE and CIBERSORTx were applied to depict the TME immune landscape. The tumor immunological phenotype analysis and TIDE were utilized for predicting the therapeutic response of immunotherapy.ResultsA total of 106 GMRGs were retrieved. Two distinct clusters were established by consensus clustering analysis, which showed a close association with the IDH mutational status of gliomas. In both IDH-mutant and IDH-wildtype gliomas, cluster 2 had significantly shorter overall survival compared with cluster 1, and the differentially expressed genes between the two clusters enriched in pathways related to malignant transformation as well as immunity. In silico TME analysis of the two IDH subtypes revealed not only significantly different immune cell infiltrations and immune phenotypes between the GMRG expression clusters but also different predicted responses to immunotherapy. After the screening, a total of 10 GMRGs were selected to build the GMRS. Survival analysis demonstrated the independent prognostic role of GMRS. Prognostic nomograms were established to predict 1-, 2-, and 3-year survival rates in the four cohorts.ConclusionDifferent subtypes of glutamine metabolism could affect the aggressiveness and TME immune features of diffuse glioma, despite their IDH mutational status. The expression signature of GMRGs could not only predict the outcome of patients with glioma but also be combined into an accurate prognostic nomogram.
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Affiliation(s)
- Huanhuan Fan
- Psychiatric Laboratory and Mental Health Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Shuxin Zhang
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yunbo Yuan
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Siliang Chen
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Wenhao Li
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Zhihao Wang
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yufan Xiang
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Junhong Li
- Department of Neurosurgery, Chengdu Second People's Hospital, Chengdu, Sichuan, China
| | - Xiaohong Ma
- Psychiatric Laboratory and Mental Health Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- *Correspondence: Xiaohong Ma
| | - Yanhui Liu
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- Yanhui Liu
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Li GS, Huang HQ, Liang Y, Pang QY, Sun HJ, Huang ZG, Dang YW, Yang LJ, Chen G. BCAT1: A risk factor in multiple cancers based on a pan-cancer analysis. Cancer Med 2022; 11:1396-1412. [PMID: 34984849 PMCID: PMC8894718 DOI: 10.1002/cam4.4525] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 12/10/2021] [Accepted: 12/11/2021] [Indexed: 12/21/2022] Open
Abstract
Background Although branched chain amino acid transaminase 1 (BCAT1) has been identified to play an essential role in multiple tumors, no studies on its role in pan‐cancer have been consulted before. Methods The study comprehensively analyzes the expression, potential mechanisms, and clinical significance of BCAT1 in pan‐cancer through utilizing 16,847 samples, providing novel clues for the treatment of cancers. A Kruskal–Wallis test and the Wilcoxon rank‐sum and signed‐rank tests were applied to investigate diverse BCAT1 expression between various groups (e.g., cancer tissues versus normal tissues). Spearman’s rank correlation coefficient was used in all correlation analyses in the study. Cox analyses and Kaplan‐Meier curves were utilized to identify the prognosis significance of BCAT1 expression in cancers. The significance of BCAT1 expression in differentiating cancer and non‐cancer tissues was explored via the area under the receiver operating characteristic curves (AUC). Results The differential expression of BCAT1 was detected in various cancers (p < 0.05), which is relevant to some DNA methyltransferases expression. BCAT1 expression was associated with mismatch repair gene expression, immune checkpoint inhibitors expression, microsatellite instability, and tumor mutational burden in some cancers, indicating its potential in immunotherapy. BCAT1 expression showed prognosis significance and played a risk role in multiple cancers (hazard ratio > 0, p < 0.05). BCAT1 expression also demonstrated conspicuous ability to distinguish some cancers tissues from their normal tissues (AUC > 0.7), indicating its potential to detect cancers. Further analyses on head and neck squamous cell carcinoma certified upregulated BCAT1 expression at both mRNA and protein levels in this disease based on in‐house tissue microarrays and multicenter datasets. Conclusions For the first time, the research comprehensively demonstrates the overexpression of BCAT1 in pan‐cancer, which improves the understanding of the pathogenesis of BCAT1 in pan‐cancer. Upregulated BCAT1 expression represented a poor prognosis for cancers patients, and it serves as a potential marker for cancer immunotherapy.
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Affiliation(s)
- Guo-Sheng Li
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - He-Qing Huang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yao Liang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Qiu-Yu Pang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Hao-Jia Sun
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Zhi-Guang Huang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yi-Wu Dang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Lin-Jie Yang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Gang Chen
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
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10
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Koch K, Hartmann R, Suwala AK, Rios DH, Kamp MA, Sabel M, Steiger HJ, Willbold D, Sharma A, Kahlert UD, Maciaczyk J. Overexpression of Cystine/Glutamate Antiporter xCT Correlates with Nutrient Flexibility and ZEB1 Expression in Highly Clonogenic Glioblastoma Stem-like Cells (GSCs). Cancers (Basel) 2021; 13:cancers13236001. [PMID: 34885110 PMCID: PMC8672273 DOI: 10.3390/cancers13236001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/25/2021] [Accepted: 11/27/2021] [Indexed: 12/24/2022] Open
Abstract
Simple Summary Glioblastoma (GBM) is the most aggressive form of glioma (WHO grade IV), and mounting evidence suggests that glioblastoma stem-like cells (GSCs) play an important role in tumor growth and response to therapy. In the current study, we sought to understand the metabolic dependencies of GSCs using high-resolution proton magnetic resonance spectroscopy (1H-NMR). In a defined experimental setting, we stratified in vitro GSC models into two subtypes (Gln/GluHigh, Gln/GluLow) and used diverse molecular approaches to perform comprehensive analyses in GSC neurosphere cultures and primary GBM samples. Abstract Cancer stem-like cells mediate tumor initiation, progression, and therapy resistance; however, their identification and selective eradication remain challenging. Herein, we analyze the metabolic dependencies of glioblastoma stem-like cells (GSCs) with high-resolution proton nuclear magnetic resonance (1H-NMR) spectroscopy. We stratify our in vitro GSC models into two subtypes primarily based on their relative amount of glutamine in relationship to glutamate (Gln/Glu). Gln/GluHigh GSCs were found to be resistant to glutamine deprivation, whereas Gln/GluLow GSCs respond with significantly decreased in vitro clonogenicity and impaired cell growth. The starvation resistance appeared to be mediated by an increased expression of the glutamate/cystine antiporter SLC7A11/xCT and efficient cellular clearance of reactive oxygen species (ROS). Moreover, we were able to directly correlate xCT-dependent starvation resistance and high Gln/Glu ratios with in vitro clonogenicity, since targeted differentiation of GSCs with bone morphogenic protein 4 (BMP4) impaired xCT expression, decreased the Gln/Glu ratio, and restored the sensitivity to glutamine starvation. Moreover, significantly reduced levels of the oncometabolites lactate (Lac), phosphocholine (PC), total choline (tCho), myo-inositol (Myo-I), and glycine (Gly) were observed in differentiated GSCs. Furthermore, we found a strong association between high Gln/Glu ratios and increased expression of Zinc finger E-box-binding homeobox 1 (ZEB1) and xCT in primary GBM tumor tissues. Our analyses suggest that the inhibition of xCT represents a potential therapeutic target in glioblastoma; thus, we could further extend its importance in GSC biology and stress responses. We also propose that monitoring of the intracellular Gln/Glu ratio can be used to predict nutrient stress resistance.
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Affiliation(s)
- Katharina Koch
- Department of Neurosurgery, University Hospital Duesseldorf, 40225 Duesseldorf, Germany; (K.K.); (D.H.R.); (M.S.); (H.-J.S.); (U.D.K.)
- IUF—Leibniz Research Institute for Environmental Medicine, 40225 Duesseldorf, Germany
| | - Rudolf Hartmann
- Institute of Biological Information Processing (IBI-7) Structural Biochemistry, Forschungszentrum Juelich, 52425 Juelich, Germany; (R.H.); (D.W.)
| | - Abigail Kora Suwala
- Department of Neurological Surgery, Helen Diller Research Center, University of California San Francisco, San Francisco, CA 94158, USA;
- Department of Neuropathology, Institute of Pathology, Heidelberg University Hospital, 69120 Heidelberg, Germany
- Clinical Cooperation Unit Neuropathology, German Cancer Research Center (DKFZ), German Consortium for Translational Cancer Research (DKTK), 69120 Heidelberg, Germany
| | - Dayana Herrera Rios
- Department of Neurosurgery, University Hospital Duesseldorf, 40225 Duesseldorf, Germany; (K.K.); (D.H.R.); (M.S.); (H.-J.S.); (U.D.K.)
- Skin Cancer Unit of the Dermatology Department, West German Cancer Center, University Duisburg-Essen, 45147 Essen, Germany
| | - Marcel Alexander Kamp
- Department of Neurosurgery, Centre of Neuro-Oncology, Jena University Hospital, Friedrich-Schiller-University Jena, 07747 Jena, Germany;
| | - Michael Sabel
- Department of Neurosurgery, University Hospital Duesseldorf, 40225 Duesseldorf, Germany; (K.K.); (D.H.R.); (M.S.); (H.-J.S.); (U.D.K.)
| | - Hans-Jakob Steiger
- Department of Neurosurgery, University Hospital Duesseldorf, 40225 Duesseldorf, Germany; (K.K.); (D.H.R.); (M.S.); (H.-J.S.); (U.D.K.)
| | - Dieter Willbold
- Institute of Biological Information Processing (IBI-7) Structural Biochemistry, Forschungszentrum Juelich, 52425 Juelich, Germany; (R.H.); (D.W.)
- Institut für Physikalische Biologie, Heinrich-Heine-University Duesseldorf, 40225 Duesseldorf, Germany
| | - Amit Sharma
- Department of Neurosurgery, University Hospital Bonn, 53127 Bonn, Germany;
| | - Ulf Dietrich Kahlert
- Department of Neurosurgery, University Hospital Duesseldorf, 40225 Duesseldorf, Germany; (K.K.); (D.H.R.); (M.S.); (H.-J.S.); (U.D.K.)
- Department of Molecular and Experimental Surgery, Clinic of General, Visceral, Vascular and Transplant Surgery, Faculty of Medicine, Otto-von-Guericke University and University Hospital Magdeburg, 39120 Magdeburg, Germany
| | - Jarek Maciaczyk
- Department of Neurosurgery, University Hospital Bonn, 53127 Bonn, Germany;
- Department of Surgical Sciences, University of Otago, Dunedin 9054, New Zealand
- Correspondence: ; Tel.: +49-(0)228-287-16531
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11
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Campos-Sandoval JA, Gómez-García MC, Santos-Jiménez JDL, Matés JM, Alonso FJ, Márquez J. Antioxidant responses related to temozolomide resistance in glioblastoma. Neurochem Int 2021; 149:105136. [PMID: 34274381 DOI: 10.1016/j.neuint.2021.105136] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 06/20/2021] [Accepted: 07/08/2021] [Indexed: 10/20/2022]
Abstract
Glioblastoma remains one of the most challenging and devastating cancers, with only a very small proportion of patients achieving 5-year survival. The current standard of care consists of surgery, followed by radiation therapy with concurrent and maintenance chemotherapy with the alkylating agent temozolomide. To date, this drug is the only one that provides a significant survival benefit, albeit modest, as patients end up acquiring resistance to this drug. As a result, tumor progression and recurrence inevitably occur, leading to death. Several factors have been proposed to explain this resistance, including an upregulated antioxidant system to keep the elevated intracellular ROS levels, a hallmark of cancer cells, under control. In this review, we discuss the mechanisms of chemoresistance -including the important role of glioblastoma stem cells-with emphasis on antioxidant defenses and how agents that impair redox balance (i.e.: sulfasalazine, erastin, CB-839, withaferin, resveratrol, curcumin, chloroquine, and hydroxychloroquine) might be advantageous in combined therapies against this type of cancer.
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Affiliation(s)
- José A Campos-Sandoval
- Departamento de Biología Molecular y Bioquímica, Canceromics Lab. Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain, and Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain.
| | - María C Gómez-García
- Departamento de Biología Molecular y Bioquímica, Canceromics Lab. Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain, and Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
| | - Juan de Los Santos-Jiménez
- Departamento de Biología Molecular y Bioquímica, Canceromics Lab. Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain, and Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
| | - José M Matés
- Departamento de Biología Molecular y Bioquímica, Canceromics Lab. Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain, and Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
| | - Francisco J Alonso
- Departamento de Biología Molecular y Bioquímica, Canceromics Lab. Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain, and Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
| | - Javier Márquez
- Departamento de Biología Molecular y Bioquímica, Canceromics Lab. Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain, and Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
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12
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Thomas TM, Miyaguchi K, Edwards LA, Wang H, Wollebo H, Aiguo L, Murali R, Wang Y, Braas D, Michael JS, Andres AM, Zhang M, Khalili K, Gottlieb RA, Perez JM, Yu JS. Elevated Asparagine Biosynthesis Drives Brain Tumor Stem Cell Metabolic Plasticity and Resistance to Oxidative Stress. Mol Cancer Res 2021; 19:1375-1388. [PMID: 33863814 DOI: 10.1158/1541-7786.mcr-20-0086] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 02/26/2021] [Accepted: 04/14/2021] [Indexed: 12/12/2022]
Abstract
Asparagine synthetase (ASNS) is a gene on the long arm of chromosome 7 that is copy-number amplified in the majority of glioblastomas. ASNS copy-number amplification is associated with a significantly decreased survival. Using patient-derived glioma stem cells (GSC), we showed that significant metabolic alterations occur in gliomas when perturbing the expression of ASNS, which is not merely restricted to amino acid homeostasis. ASNS-high GSCs maintained a slower basal metabolic profile yet readily shifted to a greatly increased capacity for glycolysis and oxidative phosphorylation when needed. This led ASNS-high cells to a greater ability to proliferate and spread into brain tissue. Finally, we demonstrate that these changes confer resistance to cellular stress, notably oxidative stress, through adaptive redox homeostasis that led to radiotherapy resistance. Furthermore, ASNS overexpression led to modifications of the one-carbon metabolism to promote a more antioxidant tumor environment revealing a metabolic vulnerability that may be therapeutically exploited. IMPLICATIONS: This study reveals a new role for ASNS in metabolic control and redox homeostasis in glioma stem cells and proposes a new treatment strategy that attempts to exploit one vulnerable metabolic node within the larger multilayered tumor network.
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Affiliation(s)
- Tom M Thomas
- Department of Neurosurgery, Maxine-Dunitz Neurosurgical Institute, Cedars Sinai Medical Center, Los Angeles, California
| | - Ken Miyaguchi
- Department of Neurosurgery, Maxine-Dunitz Neurosurgical Institute, Cedars Sinai Medical Center, Los Angeles, California
| | - Lincoln A Edwards
- Department of Neurosurgery, Maxine-Dunitz Neurosurgical Institute, Cedars Sinai Medical Center, Los Angeles, California
| | - Hongqiang Wang
- Department of Neurosurgery, Maxine-Dunitz Neurosurgical Institute, Cedars Sinai Medical Center, Los Angeles, California
| | - Hassen Wollebo
- Department of Neuroscience, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
| | - Li Aiguo
- Neuro-Oncology Branch, National Cancer Institute, Bethesda, Maryland
| | - Ramachandran Murali
- Department of Biomedical Sciences, Cedars Sinai Medical Center, Los Angeles, California
| | - Yizhou Wang
- Genomics Core, Cedars Sinai Medical Center, Los Angeles, California
| | - Daniel Braas
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, UCLA, Los Angeles, California
| | - Justin S Michael
- Department of Neurosurgery, Maxine-Dunitz Neurosurgical Institute, Cedars Sinai Medical Center, Los Angeles, California
| | - Allen M Andres
- Mitochondria and Metabolism Core, Cedars Sinai Medical Center, Los Angeles, California
| | - Miqin Zhang
- Department of Materials Science and Engineering, University of Washington, Seattle, Washington
| | - Kamel Khalili
- Department of Neuroscience, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
| | - Roberta A Gottlieb
- Mitochondria and Metabolism Core, Cedars Sinai Medical Center, Los Angeles, California
| | - J Manuel Perez
- Department of Neurosurgery, and Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - John S Yu
- Department of Neurosurgery, Maxine-Dunitz Neurosurgical Institute, Cedars Sinai Medical Center, Los Angeles, California.
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13
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Yi L, Fan X, Li J, Yuan F, Zhao J, Nistér M, Yang X. Enrichment of branched chain amino acid transaminase 1 correlates with multiple biological processes and contributes to poor survival of IDH1 wild-type gliomas. Aging (Albany NY) 2021; 13:3645-3660. [PMID: 33493139 PMCID: PMC7906175 DOI: 10.18632/aging.202328] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 11/06/2020] [Indexed: 12/15/2022]
Abstract
Previous studies have reported the association between branched-chain amino acid trasaminase1 (BCAT1) and IDH1 wild-type gliomas. Nonetheless, as a promising target for treatment of primary glioblastoma, comprehensive reports on BCAT1 in gliomas are still lacking. In the present study, we accessed glioma patient cohorts and tissue microarray to evaluate the expression pattern of BCAT1 for determining its prognostic value and its relationship with IDH1 mutation status. Furthermore, we explored the potential regulatory mechanism of BCAT1 in gliomas by comparing the BCAT1 mRNA expression pattern with selected tumor biological signatures. The results showed that BCAT1 is highly expressed in GBM versus lower grade gliomas and could represent the poor survival of IDH1 wild-type gliomas. Moreover, BCAT1 is an independent prognostic factor for glioma patients, high BCAT1 expression is related to unfavorable clinical parameters including older age, IDH wildtype, no 1p/19q codeletion, ATRX wildtype and MGMT unmethylated. Additionally, BCAT1 correlated with apoptosis, hypoxia and angiogenesis processes in gliomas and high expression of BCAT1 revealed higher glycolysis level and increased immunosuppressive status in tumor progression. We concluded that BCAT1 is a strong prognostic factor for glioma patients and involved in the malignant progression of IDH1 wild-type gliomas.
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Affiliation(s)
- Li Yi
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China.,Tianjin Neurological Institute, Tianjin 300052, China.,Department of Oncology-Pathology, Karolinska Institutet, Karolinska University Hospital Solna, Solna 17164, Sweden
| | - Xiaoguang Fan
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China.,Tianjin Neurological Institute, Tianjin 300052, China
| | - Jiabo Li
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China.,Tianjin Neurological Institute, Tianjin 300052, China
| | - Feng Yuan
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China.,Tianjin Neurological Institute, Tianjin 300052, China
| | - Jian Zhao
- Department of Oncology-Pathology, Karolinska Institutet, Karolinska University Hospital Solna, Solna 17164, Sweden
| | - Monica Nistér
- Department of Oncology-Pathology, Karolinska Institutet, Karolinska University Hospital Solna, Solna 17164, Sweden
| | - Xuejun Yang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China.,Tianjin Neurological Institute, Tianjin 300052, China
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14
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Koch K, Hartmann R, Tsiampali J, Uhlmann C, Nickel AC, He X, Kamp MA, Sabel M, Barker RA, Steiger HJ, Hänggi D, Willbold D, Maciaczyk J, Kahlert UD. A comparative pharmaco-metabolomic study of glutaminase inhibitors in glioma stem-like cells confirms biological effectiveness but reveals differences in target-specificity. Cell Death Discov 2020; 6:20. [PMID: 32337072 PMCID: PMC7162917 DOI: 10.1038/s41420-020-0258-3] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 02/27/2020] [Accepted: 03/26/2020] [Indexed: 12/14/2022] Open
Abstract
Cancer cells upregulate anabolic processes to maintain high rates of cellular turnover. Limiting the supply of macromolecular precursors by targeting enzymes involved in biosynthesis is a promising strategy in cancer therapy. Several tumors excessively metabolize glutamine to generate precursors for nonessential amino acids, nucleotides, and lipids, in a process called glutaminolysis. Here we show that pharmacological inhibition of glutaminase (GLS) eradicates glioblastoma stem-like cells (GSCs), a small cell subpopulation in glioblastoma (GBM) responsible for therapy resistance and tumor recurrence. Treatment with small molecule inhibitors compound 968 and CB839 effectively diminished cell growth and in vitro clonogenicity of GSC neurosphere cultures. However, our pharmaco-metabolic studies revealed that only CB839 inhibited GLS enzymatic activity thereby limiting the influx of glutamine derivates into the TCA cycle. Nevertheless, the effects of both inhibitors were highly GLS specific, since treatment sensitivity markedly correlated with GLS protein expression. Strikingly, we found GLS overexpressed in in vitro GSC models as compared with neural stem cells (NSC). Moreover, our study demonstrates the usefulness of in vitro pharmaco-metabolomics to score target specificity of compounds thereby refining drug development and risk assessment.
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Affiliation(s)
- Katharina Koch
- Neurosurgery Department, University Hospital Duesseldorf, 40225 Duesseldorf, Germany
| | - Rudolf Hartmann
- Institute of Complex Systems (ICS-6) Structural Biochemistry and JuStruct: Juelich Center for Structural Biology, Forschungszentrum Juelich, 52425 Juelich, Germany
| | - Julia Tsiampali
- Neurosurgery Department, University Hospital Duesseldorf, 40225 Duesseldorf, Germany
| | - Constanze Uhlmann
- Neurosurgery Department, University Hospital Duesseldorf, 40225 Duesseldorf, Germany
| | - Ann-Christin Nickel
- Neurosurgery Department, University Hospital Duesseldorf, 40225 Duesseldorf, Germany
| | - Xiaoling He
- John van Geest Centre for Brain Repair and WT/MRC Cambridge Stem Cell Institute, Department of Clinical Neurosciences, University of Cambridge, CB2 0PY Cambridge, UK
| | - Marcel A. Kamp
- Neurosurgery Department, University Hospital Duesseldorf, 40225 Duesseldorf, Germany
| | - Michael Sabel
- Neurosurgery Department, University Hospital Duesseldorf, 40225 Duesseldorf, Germany
| | - Roger A. Barker
- John van Geest Centre for Brain Repair and WT/MRC Cambridge Stem Cell Institute, Department of Clinical Neurosciences, University of Cambridge, CB2 0PY Cambridge, UK
| | - Hans-Jakob Steiger
- Neurosurgery Department, University Hospital Duesseldorf, 40225 Duesseldorf, Germany
| | - Daniel Hänggi
- Neurosurgery Department, University Hospital Duesseldorf, 40225 Duesseldorf, Germany
| | - Dieter Willbold
- Institute of Complex Systems (ICS-6) Structural Biochemistry and JuStruct: Juelich Center for Structural Biology, Forschungszentrum Juelich, 52425 Juelich, Germany
- Institut für Physikalische Biologie, Heinrich Heine University Duesseldorf, 40225 Duesseldorf, Germany
| | - Jaroslaw Maciaczyk
- Neurosurgery Department, University Hospital Duesseldorf, 40225 Duesseldorf, Germany
- Neurosurgery Department, University Hospital Bonn, 53127 Bonn, Germany
| | - Ulf D. Kahlert
- Neurosurgery Department, University Hospital Duesseldorf, 40225 Duesseldorf, Germany
- German Cancer Consortium (DKTK), Essen/Duesseldorf, Germany
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15
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Coronarin D Induces Apoptotic Cell Death and Cell Cycle Arrest in Human Glioblastoma Cell Line. Molecules 2019; 24:molecules24244498. [PMID: 31818017 PMCID: PMC6943529 DOI: 10.3390/molecules24244498] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 11/18/2019] [Accepted: 11/21/2019] [Indexed: 12/25/2022] Open
Abstract
Glioblastoma (GBM) is the most frequent and highest-grade brain tumor in adults. The prognosis is still poor despite the use of combined therapy involving maximal surgical resection, radiotherapy, and chemotherapy. The development of more efficient drugs without noticeable side effects is urgent. Coronarin D is a diterpene obtained from the rhizome extract of Hedychium coronarium, classified as a labdane with several biological activities, principally anticancer potential. The aim of the present study was to determine the anti-cancer properties of Coronarin D in the glioblastoma cell line and further elucidate the underlying molecular mechanisms. Coronarin D potently suppressed cell viability in glioblastoma U-251 cell line, and also induced G1 arrest by reducing p21 protein and histone H2AX phosphorylation, leading to DNA damage and apoptosis. Further studies showed that Coronarin D increased the production of reactive oxygen species, lead to mitochondrial membrane potential depolarization, and subsequently activated caspases and ERK phosphorylation, major mechanisms involved in apoptosis. To our knowledge, this is the first analysis referring to this compound on the glioma cell line. These findings highlight the antiproliferative activity of Coronarin D against glioblastoma cell line U-251 and provide a basis for further investigation on its antineoplastic activity on brain cancer.
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16
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Li Y, Ren Z, Peng Y, Li K, Wang X, Huang G, Qi S, Liu Y. Classification of glioma based on prognostic alternative splicing. BMC Med Genomics 2019; 12:165. [PMID: 31729991 PMCID: PMC6858651 DOI: 10.1186/s12920-019-0603-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 10/16/2019] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Previously developed classifications of glioma have provided enormous advantages for the diagnosis and treatment of glioma. Although the role of alternative splicing (AS) in cancer, especially in glioma, has been validated, a comprehensive analysis of AS in glioma has not yet been conducted. In this study, we aimed at classifying glioma based on prognostic AS. METHODS Using the TCGA glioblastoma (GBM) and low-grade glioma (LGG) datasets, we analyzed prognostic splicing events. Consensus clustering analysis was conducted to classified glioma samples and correlation analysis was conducted to characterize regulatory network of splicing factors and splicing events. RESULTS We analyzed prognostic splicing events and proposed novel splicing classifications across pan-glioma samples (labeled pST1-7) and across GBM samples (labeled ST1-3). Distinct splicing profiles between GBM and LGG were observed, and the primary discriminator for the pan-glioma splicing classification was tumor grade. Subtype-specific splicing events were identified; one example is AS of zinc finger proteins, which is involved in glioma prognosis. Furthermore, correlation analysis of splicing factors and splicing events identified SNRPB and CELF2 as hub splicing factors that upregulated and downregulated oncogenic AS, respectively. CONCLUSION A comprehensive analysis of AS in glioma was conducted in this study, shedding new light on glioma heterogeneity and providing new insights into glioma diagnosis and treatment.
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Affiliation(s)
- Yaomin Li
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Dadao Bei Street 1838#, Guangzhou, People's Republic of China
- Laboratory for Precision Neurosurgery, Nanfang hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Zhonglu Ren
- College of Medical Information Engineering, Guangdong Pharmaceutical University, Guangzhou, 510515, Guangdong, China
| | - Yuping Peng
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Dadao Bei Street 1838#, Guangzhou, People's Republic of China
| | - Kaishu Li
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Dadao Bei Street 1838#, Guangzhou, People's Republic of China
- Laboratory for Precision Neurosurgery, Nanfang hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Xiran Wang
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Dadao Bei Street 1838#, Guangzhou, People's Republic of China
- Laboratory for Precision Neurosurgery, Nanfang hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Guanglong Huang
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Dadao Bei Street 1838#, Guangzhou, People's Republic of China
- Laboratory for Precision Neurosurgery, Nanfang hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Songtao Qi
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Dadao Bei Street 1838#, Guangzhou, People's Republic of China.
- Laboratory for Precision Neurosurgery, Nanfang hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China.
| | - Yawei Liu
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, Dadao Bei Street 1838#, Guangzhou, People's Republic of China.
- Laboratory for Precision Neurosurgery, Nanfang hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China.
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Chinopoulos C, Seyfried TN. Mitochondrial Substrate-Level Phosphorylation as Energy Source for Glioblastoma: Review and Hypothesis. ASN Neuro 2019; 10:1759091418818261. [PMID: 30909720 PMCID: PMC6311572 DOI: 10.1177/1759091418818261] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Glioblastoma multiforme (GBM) is the most common and malignant of the primary adult brain cancers. Ultrastructural and biochemical evidence shows that GBM cells exhibit mitochondrial abnormalities incompatible with energy production through oxidative phosphorylation (OxPhos). Under such conditions, the mitochondrial F0-F1 ATP synthase operates in reverse at the expense of ATP hydrolysis to maintain a moderate membrane potential. Moreover, expression of the dimeric M2 isoform of pyruvate kinase in GBM results in diminished ATP output, precluding a significant ATP production from glycolysis. If ATP synthesis through both glycolysis and OxPhos was impeded, then where would GBM cells obtain high-energy phosphates for growth and invasion? Literature is reviewed suggesting that the succinate-CoA ligase reaction in the tricarboxylic acid cycle can substantiate sufficient ATP through mitochondrial substrate-level phosphorylation (mSLP) to maintain GBM growth when OxPhos is impaired. Production of high-energy phosphates would be supported by glutaminolysis—a hallmark of GBM metabolism—through the sequential conversion of glutamine → glutamate → alpha-ketoglutarate → succinyl CoA → succinate. Equally important, provision of ATP through mSLP would maintain the adenine nucleotide translocase in forward mode, thus preventing the reverse-operating F0-F1 ATP synthase from depleting cytosolic ATP reserves. Because glucose and glutamine are the primary fuels driving the rapid growth of GBM and most tumors for that matter, simultaneous restriction of these two substrates or inhibition of mSLP should diminish cancer viability, growth, and invasion.
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Petővári G, Hujber Z, Krencz I, Dankó T, Nagy N, Tóth F, Raffay R, Mészáros K, Rajnai H, Vetlényi E, Takács-Vellai K, Jeney A, Sebestyén A. Targeting cellular metabolism using rapamycin and/or doxycycline enhances anti-tumour effects in human glioma cells. Cancer Cell Int 2018; 18:211. [PMID: 30574020 PMCID: PMC6300020 DOI: 10.1186/s12935-018-0710-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 12/14/2018] [Indexed: 12/16/2022] Open
Abstract
Background Glioma is the most common highly aggressive, primary adult brain tumour. Clinical data show that therapeutic approaches cannot reach the expectations in patients, thus gliomas are mainly incurable diseases. Tumour cells can adapt rapidly to alterations during therapeutic treatments related to their metabolic rewiring and profound heterogeneity in tissue environment. Renewed interests aim to develop effective treatments targeting angiogenesis, kinase activity and/or cellular metabolism. mTOR (mammalian target of rapamycin), whose hyper-activation is characteristic for many tumours, promotes metabolic alterations, macromolecule biosynthesis, cellular growth and survival. Unfortunately, mTOR inhibitors with their lower toxicity have not resulted in appreciable survival benefit. Analysing mTOR inhibitor sensitivity, other metabolism targeting treatments and their combinations could help to find potential agents and biomarkers for therapeutic development in glioma patients. Methods In vitro proliferation assays, protein expression and metabolite concentration analyses were used to study the effects of mTOR inhibitors, other metabolic treatments and their combinations in glioma cell lines. Furthermore, mTOR activity and cellular metabolism related protein expression patterns were also investigated by immunohistochemistry in human biopsies. Temozolomide and/or rapamycin treatments altered the expressions of enzymes related to lipid synthesis, glycolysis and mitochondrial functions as consequences of metabolic adaptation; therefore, other anti-metabolic drugs (chloroquine, etomoxir, doxycycline) were combined in vitro. Results Our results suggest that co-targeting metabolic pathways had tumour cell dependent additive/synergistic effects related to mTOR and metabolic protein expression patterns cell line dependently. Drug combinations, especially rapamycin + doxycycline may have promising anti-tumour effect in gliomas. Additionally, our immunohistochemistry results suggest that metabolic and mTOR activity alterations are not related to the recent glioma classification, and these protein expression profiles show individual differences in patients’ materials. Conclusions Based on these, combinations of different new/old drugs targeting cellular metabolism could be promising to inhibit high adaptation capacity of tumour cells depending on their metabolic shifts. Relating to this, such a development of current therapy needs to find special biomarkers to characterise metabolic heterogeneity of gliomas.
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Affiliation(s)
- Gábor Petővári
- 11st Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, Budapest, 1085 Hungary
| | - Zoltán Hujber
- 11st Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, Budapest, 1085 Hungary
| | - Ildikó Krencz
- 11st Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, Budapest, 1085 Hungary
| | - Titanilla Dankó
- 11st Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, Budapest, 1085 Hungary
| | - Noémi Nagy
- 11st Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, Budapest, 1085 Hungary
| | - Fanni Tóth
- 11st Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, Budapest, 1085 Hungary
| | - Regina Raffay
- 11st Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, Budapest, 1085 Hungary
| | - Katalin Mészáros
- 2Hungarian Academy of Sciences-Momentum Hereditary Endocrine Tumours Research Group, Semmelweis University-National Bionics Program Budapest, Üllői út 26, Budapest, 1085 Hungary
| | - Hajnalka Rajnai
- 11st Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, Budapest, 1085 Hungary
| | - Enikő Vetlényi
- 11st Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, Budapest, 1085 Hungary
| | - Krisztina Takács-Vellai
- 3Department of Biological Anthropology, Eötvös Loránd University, Pázmány Péter sétány 1/A, Budapest, 1117 Hungary
| | - András Jeney
- 11st Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, Budapest, 1085 Hungary
| | - Anna Sebestyén
- 11st Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, Budapest, 1085 Hungary
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Goldman DA, Hovinga K, Reiner AS, Esquenazi Y, Tabar V, Panageas KS. The relationship between repeat resection and overall survival in patients with glioblastoma: a time-dependent analysis. J Neurosurg 2018; 129:1231-1239. [PMID: 29303449 PMCID: PMC6392195 DOI: 10.3171/2017.6.jns17393] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 06/30/2017] [Indexed: 12/20/2022]
Abstract
OBJECTIVEPrevious studies assessed the relationship between repeat resection and overall survival (OS) in patients with glioblastoma, but ignoring the timing of repeat resection may have led to biased conclusions. Statistical methods that take time into account are well established and applied consistently in other medical fields. The goal of this study was to illustrate the change in the effect of repeat resection on OS in patients with glioblastoma once timing of resection is incorporated.METHODSThe authors conducted a retrospective study of patients initially diagnosed with glioblastoma between January 2005 and December 2014 who were treated at Memorial Sloan Kettering Cancer Center. Patients underwent at least 1 craniotomy with both pre- and postoperative MRI data available. The effect of repeat resection on OS was assessed with time-dependent extended Cox regression controlling for extent of resection, initial Karnofsky Performance Scale score, sex, age, multifocal status, eloquent status, and postoperative treatment.RESULTSEighty-nine (55%) of 163 patients underwent repeat resection with a median time between resections of 7.7 months (range 0.5-50.8 months). Median OS was 18.8 months (95% confidence interval [CI] 16.3-20.5 months) from initial resection. When timing of repeat resection was ignored, repeat resection was associated with a lower risk of death (hazard ratio [HR] 0.62, 95% CI 0.43-0.90, p = 0.01); however, when timing was taken into account, repeat resection was associated with a higher risk of death (HR 2.19, 95% CI 1.47-3.28, p < 0.001).CONCLUSIONSIn this study, accounting for timing of repeat resection reversed its protective effect on OS, suggesting repeat resection may not benefit OS in all patients. These findings establish a foundation for future work by accounting for timing of repeat resection using time-dependent methods in the evaluation of repeat resection on OS. Additional recommendations include improved data capture that includes mutational data, development of algorithms for determining eligibility for repeat resection, more rigorous statistical analyses, and the assessment of additional benefits of repeat resection, such as reduction of symptom burden and enhanced quality of life.
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Affiliation(s)
- Debra A. Goldman
- Department of Epidemiology & Biostatistics, Memorial Sloan Kettering Cancer Center, NY, NY USA
| | - Koos Hovinga
- Department of Neurosurgery, Memorial Sloan Kettering Cancer Center, NY, NY USA
- Department of Neurosurgery, Slotervaart Ziekenhuis, Amsterdam, The Netherlands
| | - Anne S. Reiner
- Department of Epidemiology & Biostatistics, Memorial Sloan Kettering Cancer Center, NY, NY USA
| | - Yoshua Esquenazi
- Department of Neurosurgery, Memorial Sloan Kettering Cancer Center, NY, NY USA
- Vivian L. Smith Department of Neurosurgery, The University of Texas Health Science Center at Houston, Houston, Texas USA
| | - Viviane Tabar
- Department of Neurosurgery, Memorial Sloan Kettering Cancer Center, NY, NY USA
| | - Katherine S. Panageas
- Department of Epidemiology & Biostatistics, Memorial Sloan Kettering Cancer Center, NY, NY USA
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Wegermann K, Henao R, Diehl AM, Murphy SK, Abdelmalek MF, Moylan CA. Branched chain amino acid transaminase 1 (BCAT1) is overexpressed and hypomethylated in patients with non-alcoholic fatty liver disease who experience adverse clinical events: A pilot study. PLoS One 2018; 13:e0204308. [PMID: 30265706 PMCID: PMC6161885 DOI: 10.1371/journal.pone.0204308] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 09/05/2018] [Indexed: 12/22/2022] Open
Abstract
Background and objectives Although the burden of non-alcoholic fatty liver disease (NAFLD) continues to increase worldwide, genetic factors predicting progression to cirrhosis and decompensation in NAFLD remain poorly understood. We sought to determine whether gene expression profiling was associated with clinical decompensation and death in patients with NAFLD, and to assess whether altered DNA methylation contributes to these changes in gene expression. Methods We performed a retrospective analysis of 86 patients in the Duke NAFLD Clinical Database and Biorepository with biopsy-proven NAFLD whose liver tissue was previously evaluated for gene expression and DNA methylation using array based technologies. We assessed the prospective development of liver and cardiovascular disease related outcomes, including hepatic decompensation as identified by the development of ascites, hepatic encephalopathy, hepatocellular carcinoma, or variceal bleeding as well as stroke and myocardial infarction via medical chart review. Results Of the 86 patients, 47 had F0-F1 fibrosis and 39 had F3-F4 fibrosis at index liver biopsy. Gene expression probe sets (n = 54,675) were analyzed; 42 genes showed significant differential expression (p<0.05) and a two-fold change in expression between patients with and without any outcome. Two expression probes of the branched chain amino-acid transaminase 1 (BCAT1) gene were upregulated (p = 0.02; fold change 2.1 and 2.2 respectively) in patients with a clinical outcome. Methylation of three of the 34 BCAT1 CpG methylation probes were significantly inversely correlated with BCAT1 expression specific to the probes predictive of clinical deterioration. Conclusion We found differential gene expression, correlated to changes in DNA methylation, at multiple BCAT1 loci in patients with cardiovascular outcomes and/or hepatic decompensation. BCAT1 catalyzes the transformation of alpha-ketoglutarate to glutamate and has been linked to the presence and severity of NAFLD, possibly through derangements in the balance between glutamate and alpha-ketoglutarate. Given the potential for BCAT1 to identify patients at risk for poor outcomes, and the potential therapeutic implications, these results should be validated in larger prospective studies.
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Affiliation(s)
- Kara Wegermann
- Division of Gastroenterology, Department of Medicine, Duke University Health System, Durham, NC, United States of America
| | - Ricardo Henao
- Biostatistics and Bioinformatics, Duke University, Durham, NC, United States of America
| | - Anna Mae Diehl
- Division of Gastroenterology, Department of Medicine, Duke University Health System, Durham, NC, United States of America
| | - Susan K. Murphy
- Department of Obstetrics and Gynecology, Duke University Health System, Durham, NC, United States of America
| | - Manal F. Abdelmalek
- Division of Gastroenterology, Department of Medicine, Duke University Health System, Durham, NC, United States of America
| | - Cynthia A. Moylan
- Division of Gastroenterology, Department of Medicine, Duke University Health System, Durham, NC, United States of America
- Department of Medicine, Durham Veterans Affairs Health System, Durham, NC, United States of America
- * E-mail:
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Tissue metabolite profiles for the characterisation of paediatric cerebellar tumours. Sci Rep 2018; 8:11992. [PMID: 30097636 PMCID: PMC6086878 DOI: 10.1038/s41598-018-30342-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 07/10/2018] [Indexed: 01/05/2023] Open
Abstract
Paediatric brain tumors are becoming well characterized due to large genomic and epigenomic studies. Metabolomics is a powerful analytical approach aiding in the characterization of tumors. This study shows that common cerebellar tumors have metabolite profiles sufficiently different to build accurate, robust diagnostic classifiers, and that the metabolite profiles can be used to assess differences in metabolism between the tumors. Tissue metabolite profiles were obtained from cerebellar ependymoma (n = 18), medulloblastoma (n = 36), pilocytic astrocytoma (n = 24) and atypical teratoid/rhabdoid tumors (n = 5) samples using HR-MAS. Quantified metabolites accurately discriminated the tumors; classification accuracies were 94% for ependymoma and medulloblastoma and 92% for pilocytic astrocytoma. Using current intraoperative examination the diagnostic accuracy was 72% for ependymoma, 90% for medulloblastoma and 89% for pilocytic astrocytoma. Elevated myo-inositol was characteristic of ependymoma whilst high taurine, phosphocholine and glycine distinguished medulloblastoma. Glutamine, hypotaurine and N-acetylaspartate (NAA) were increased in pilocytic astrocytoma. High lipids, phosphocholine and glutathione were important for separating ATRTs from medulloblastomas. This study demonstrates the ability of metabolic profiling by HR-MAS on small biopsy tissue samples to characterize these tumors. Analysis of tissue metabolite profiles has advantages in terms of minimal tissue pre-processing, short data acquisition time giving the potential to be used as part of a rapid diagnostic work-up.
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Schleinitz D, Seidel A, Stassart R, Klammt J, Hirrlinger PG, Winkler U, Köhler S, Heiker JT, Schönauer R, Bialek J, Krohn K, Hoffmann K, Kovacs P, Hirrlinger J. Novel Mutations in the Asparagine Synthetase Gene ( ASNS) Associated With Microcephaly. Front Genet 2018; 9:245. [PMID: 30057589 PMCID: PMC6053511 DOI: 10.3389/fgene.2018.00245] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 06/22/2018] [Indexed: 12/30/2022] Open
Abstract
Microcephaly is a devastating condition defined by a small head and small brain compared to the age- and sex-matched population. Mutations in a number of different genes causative for microcephaly have been identified, e.g., MCPH1, WDR62, and ASPM. Recently, mutations in the gene encoding the enzyme asparagine synthetase (ASNS) were associated to microcephaly and so far 24 different mutations in ASNS causing microcephaly have been described. In a family with two affected girls, we identified novel compound heterozygous variants in ASNS (c.1165G > C, p.E389Q and c.601delA, p.M201Wfs∗28). The first mutation (E389Q) is a missense mutation resulting in the replacement of a glutamate residue evolutionary conserved from Escherichia coli to Homo sapiens by glutamine. Protein modeling based on the known crystal structure of ASNS of E. coli predicted a destabilization of the protein by E389Q. The second mutation (p.M201Wfs∗28) results in a premature stop codon after amino acid 227, thereby truncating more than half of the protein. The novel variants expand the growing list of microcephaly causing mutations in ASNS.
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Affiliation(s)
- Dorit Schleinitz
- IFB AdiposityDiseases, Leipzig University Medical Center, University of Leipzig, Leipzig, Germany
| | - Anna Seidel
- Division of Nephrology, Department of Internal Medicine, Leipzig University Medical Center, University of Leipzig, Leipzig, Germany
| | - Ruth Stassart
- Division of Neuropathology, Department of Diagnostic, Leipzig University Medical Center, University of Leipzig, Leipzig, Germany
| | - Jürgen Klammt
- Hospital for Children and Adolescents, Faculty of Medicine, University of Leipzig, Leipzig, Germany
| | - Petra G Hirrlinger
- Medizinisch-Experimentelles Zentrum, Faculty of Medicine, University of Leipzig, Leipzig, Germany
| | - Ulrike Winkler
- Carl-Ludwig-Institute for Physiology, Faculty of Medicine, University of Leipzig, Leipzig, Germany
| | - Susanne Köhler
- Carl-Ludwig-Institute for Physiology, Faculty of Medicine, University of Leipzig, Leipzig, Germany
| | - John T Heiker
- IFB AdiposityDiseases, Leipzig University Medical Center, University of Leipzig, Leipzig, Germany.,Institute of Biochemistry, Faculty of Life Sciences, University of Leipzig, Leipzig, Germany
| | - Ria Schönauer
- Division of Nephrology, Department of Internal Medicine, Leipzig University Medical Center, University of Leipzig, Leipzig, Germany
| | - Joanna Bialek
- Institute of Human Genetics, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Knut Krohn
- Core Unit DNA Technologien, Faculty of Medicine, University of Leipzig, Leipzig, Germany
| | - Katrin Hoffmann
- Institute of Human Genetics, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Peter Kovacs
- IFB AdiposityDiseases, Leipzig University Medical Center, University of Leipzig, Leipzig, Germany
| | - Johannes Hirrlinger
- Carl-Ludwig-Institute for Physiology, Faculty of Medicine, University of Leipzig, Leipzig, Germany.,Department of Neurogenetics, Max-Planck-Institute for Experimental Medicine, Göttingen, Germany
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BCAT1 is a New MR Imaging-related Biomarker for Prognosis Prediction in IDH1-wildtype Glioblastoma Patients. Sci Rep 2017; 7:17740. [PMID: 29255149 PMCID: PMC5735129 DOI: 10.1038/s41598-017-17062-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 11/21/2017] [Indexed: 01/04/2023] Open
Abstract
Isocitrate dehydrogenase 1 (IDH1)-wildtype glioblastoma (GBM) has found to be accompanied with increased expression of branched-chain amino acid trasaminase1 (BCAT1), which is associated with tumor growth and disease progression. In this retrospective study, quantitative RT-PCR, immunohistochemistry, and western blot were performed with GBM patient tissues to evaluate the BCAT1 level. Quantitative MR imaging parameters were evaluated from DSC perfusion imaging, DWI, contrast-enhanced T1WI and FLAIR imaging using a 3T MR scanner. The level of BCAT1 was significantly higher in IDH1-wildtype patients than in IDH1-mutant patients obtained in immunohistochemistry and western blot. The BCAT1 level was significantly correlated with the mean and 95th percentile-normalized CBV as well as the mean ADC based on FLAIR images. In addition, the 95th percentile-normalized CBV from CE T1WI also had a significant correlation with the BCAT1 level. Moreover, the median PFS in patients with BCAT1 expression <100 was longer than in those with BCAT1 expression ≥100. Taken together, we found that a high BCAT1 level is correlated with high CBV and a low ADC value as well as the poor prognosis of BCAT1 expression is related to the aggressive nature of GBM.
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Role of ketogenic metabolic therapy in malignant glioma: A systematic review. Crit Rev Oncol Hematol 2017; 112:41-58. [DOI: 10.1016/j.critrevonc.2017.02.016] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Revised: 01/30/2017] [Accepted: 02/14/2017] [Indexed: 12/22/2022] Open
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Márquez J, Alonso FJ, Matés JM, Segura JA, Martín-Rufián M, Campos-Sandoval JA. Glutamine Addiction In Gliomas. Neurochem Res 2017; 42:1735-1746. [PMID: 28281102 DOI: 10.1007/s11064-017-2212-1] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 02/15/2017] [Accepted: 02/17/2017] [Indexed: 10/20/2022]
Abstract
Cancer cells develop and succeed by shifting to different metabolic programs compared with their normal cell counterparts. One of the classical hallmarks of cancer cells is their higher glycolysis rate and lactate production even in the presence of abundant O2 (Warburg effect). Another common metabolic feature of cancer cells is a high rate of glutamine (Gln) consumption normally exceeding their biosynthetic and energetic needs. The term Gln addiction is now widely used to reflect the strong dependence shown by most cancer cells for this essential nitrogen substrate after metabolic reprogramming. A Gln/glutamate (Glu) cycle occurs between host tissues and the tumor in order to maximize its growth and proliferation rates. The mechanistic basis for this deregulated tumor metabolism and how these changes are connected to oncogenic and tumor suppressor pathways are becoming increasingly understood. Based on these advances, new avenues of research have been initiated to find novel therapeutic targets and to explore strategies that interfere with glutamine metabolism as anticancer therapies. In this review, we provided an updated overview of glutamine addiction in glioma, the most prevalent type of brain tumor.
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Affiliation(s)
- Javier Márquez
- Canceromics lab, Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Instituto de Biomedicina de Málaga (IBIMA), Universidad de Málaga, 29071, Málaga, Spain.
| | - Francisco J Alonso
- Canceromics lab, Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Instituto de Biomedicina de Málaga (IBIMA), Universidad de Málaga, 29071, Málaga, Spain
| | - José M Matés
- Canceromics lab, Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Instituto de Biomedicina de Málaga (IBIMA), Universidad de Málaga, 29071, Málaga, Spain
| | - Juan A Segura
- Canceromics lab, Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Instituto de Biomedicina de Málaga (IBIMA), Universidad de Málaga, 29071, Málaga, Spain
| | - Mercedes Martín-Rufián
- Canceromics lab, Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Instituto de Biomedicina de Málaga (IBIMA), Universidad de Málaga, 29071, Málaga, Spain
| | - José A Campos-Sandoval
- Canceromics lab, Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Instituto de Biomedicina de Málaga (IBIMA), Universidad de Málaga, 29071, Málaga, Spain
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Panosyan EH, Lin HJ, Koster J, Lasky JL. In search of druggable targets for GBM amino acid metabolism. BMC Cancer 2017; 17:162. [PMID: 28245795 PMCID: PMC5331648 DOI: 10.1186/s12885-017-3148-1] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 02/16/2017] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Amino acid (AA) pathways may contain druggable targets for glioblastoma (GBM). Literature reviews and GBM database ( http://r2.amc.nl ) analyses were carried out to screen for such targets among 95 AA related enzymes. METHODS First, we identified the genes that were differentially expressed in GBMs (3 datasets) compared to non-GBM brain tissues (5 datasets), or were associated with survival differences. Further, protein expression for these enzymes was also analyzed in high grade gliomas (HGGs) (proteinatlas.org). Finally, AA enzyme and gene expression were compared among the 4 TCGA (The Cancer Genome Atlas) subtypes of GBMs. RESULTS We detected differences in enzymes involved in glutamate and urea cycle metabolism in GBM. For example, expression levels of BCAT1 (branched chain amino acid transferase 1) and ASL (argininosuccinate lyase) were high, but ASS1 (argininosuccinate synthase 1) was low in GBM. Proneural and neural TCGA subtypes had low expression of all three. High expression of all three correlated with worse outcome. ASL and ASS1 protein levels were mostly undetected in high grade gliomas, whereas BCAT1 was high. GSS (glutathione synthetase) was not differentially expressed, but higher levels were linked to poor progression free survival. ASPA (aspartoacylase) and GOT1 (glutamic-oxaloacetic transaminase 1) had lower expression in GBM (associated with poor outcomes). All three GABA related genes -- glutamate decarboxylase 1 (GAD1) and 2 (GAD2) and 4-aminobutyrate aminotransferase (ABAT) -- were lower in mesenchymal tumors, which in contrast showed higher IDO1 (indoleamine 2, 3-dioxygenase 1) and TDO2 (tryptophan 2, 3-diaxygenase). Expression of PRODH (proline dehydrogenase), a putative tumor suppressor, was lower in GBM. Higher levels predicted poor survival. CONCLUSIONS Several AA-metabolizing enzymes that are higher in GBM, are also linked to poor outcome (such as BCAT1), which makes them potential targets for therapeutic inhibition. Moreover, existing drugs that deplete asparagine and arginine may be effective against brain tumors, and should be studied in conjunction with chemotherapy. Last, AA metabolism is heterogeneous in TCGA subtypes of GBM (as well as medulloblastomas and other pediatric tumors), which may translate to variable responses to AA targeted therapies.
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Affiliation(s)
- Eduard H. Panosyan
- Los Angeles Biomedical Research Institute and Department of Pediatrics at Harbor-UCLA Medical Center, Box 468, 1000 W. Carson Street, N25, Torrance, CA 90509 USA
| | - Henry J. Lin
- Los Angeles Biomedical Research Institute and Department of Pediatrics at Harbor-UCLA Medical Center, Box 468, 1000 W. Carson Street, N25, Torrance, CA 90509 USA
| | - Jan Koster
- Department of Oncogenomics, Academic Medical Center of the University of Amsterdam, Amsterdam, The Netherlands
| | - Joseph L. Lasky
- Los Angeles Biomedical Research Institute and Department of Pediatrics at Harbor-UCLA Medical Center, Box 468, 1000 W. Carson Street, N25, Torrance, CA 90509 USA
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Keen JR, Swanger SA, Traynelis SF, Olson JJ. The role of glutamate transport and SLC7A11 expression in tumor-associate seizures and survival in patients with malignant gliomas. ANNALS OF TRANSLATIONAL MEDICINE 2016; 4:S18. [PMID: 27867986 DOI: 10.21037/atm.2016.10.23] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Joseph R Keen
- Department of Neurosurgery, Emory University, Atlanta, GA 30322, USA
| | - Sharon A Swanger
- Department of Pharmacology, Emory University, Atlanta, GA 30322, USA
| | | | - Jeffrey J Olson
- Department of Neurosurgery, Emory University, Atlanta, GA 30322, USA
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