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Mechanism of Action of Ketogenic Diet Treatment: Impact of Decanoic Acid and Beta-Hydroxybutyrate on Sirtuins and Energy Metabolism in Hippocampal Murine Neurons. Nutrients 2020; 12:nu12082379. [PMID: 32784510 PMCID: PMC7468807 DOI: 10.3390/nu12082379] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 07/31/2020] [Accepted: 08/06/2020] [Indexed: 12/15/2022] Open
Abstract
The ketogenic diet (KD), a high-lipid and low-carbohydrate diet, has been used in the treatment of epilepsy, neurodegenerative disorders, inborn errors of metabolism and cancer; however, the exact mechanism/s of its therapeutic effect is not completely known. We hypothesized that sirtuins (SIRT)—a group of seven NAD-dependent enzymes and important regulators of energy metabolism may be altered under KD treatment. HT22 hippocampal murine neurons were incubated with two important KD metabolites–beta-hydroxybutyrate (BHB) (the predominant ketone body) and decanoic acid (C10), both accumulating under KD. Enzyme activity, protein, and gene expressions of SIRT 1-4, enzyme capacities of the mitochondrial respiratory chain complexes (MRC), citrate synthase (CS) and gene expression of monocarboxylate transporters were measured in control (untreated) and KD-treated cells. Incubation with both–BHB and C10 resulted in significant elevation of SIRT1 enzyme activity and an overall upregulation of the MRC. C10 incubation showed prominent increases in maximal activities of complexes I + III and complex IV of the MRC and ratios of their activities to that of CS, pointing towards a more efficient functioning of the mitochondria in C10-treated cells.
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202
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Mitochondrial biogenesis: a potential therapeutic target for osteoarthritis. Osteoarthritis Cartilage 2020; 28:1003-1006. [PMID: 32417558 DOI: 10.1016/j.joca.2020.03.018] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 03/30/2020] [Indexed: 02/02/2023]
Abstract
Mitochondrial dysfunction of human articular chondrocytes is considered a hallmark of cartilage degradation and OA pathogenesis. Due to the huge number of cellular processes in which mitochondria is implicated, even in the closed context of cellular respiration, the term mitochondrial function can refer to a variety of features which include fusion and fission, turnover (biogenesis and mitophagy), and plasticity. Mitochondrial biogenesis and mainly mitochondrial fusion and reduced mitophagy, contribute to the metabolic disorder and inflammation that occurs during OA. Reduced MFN2 and increased PARKIN expression represent potential therapeutic targets for the treatment of joint cartilage degradation during the OA process.
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203
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Gabrovsek L, Collins KB, Aggarwal S, Saunders LM, Lau HT, Suh D, Sancak Y, Trapnell C, Ong SE, Smith FD, Scott JD. A-kinase-anchoring protein 1 (dAKAP1)-based signaling complexes coordinate local protein synthesis at the mitochondrial surface. J Biol Chem 2020; 295:10749-10765. [PMID: 32482893 PMCID: PMC7397098 DOI: 10.1074/jbc.ra120.013454] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 05/20/2020] [Indexed: 12/30/2022] Open
Abstract
Compartmentalization of macromolecules is a ubiquitous molecular mechanism that drives numerous cellular functions. The appropriate organization of enzymes in space and time enables the precise transmission and integration of intracellular signals. Molecular scaffolds constrain signaling enzymes to influence the regional modulation of these physiological processes. Mitochondrial targeting of protein kinases and protein phosphatases provides a means to locally control the phosphorylation status and action of proteins on the surface of this organelle. Dual-specificity protein kinase A anchoring protein 1 (dAKAP1) is a multivalent binding protein that targets protein kinase A (PKA), RNAs, and other signaling enzymes to the outer mitochondrial membrane. Many AKAPs recruit a diverse set of binding partners that coordinate a broad range of cellular processes. Here, results of MS and biochemical analyses reveal that dAKAP1 anchors additional components, including the ribonucleoprotein granule components La-related protein 4 (LARP4) and polyadenylate-binding protein 1 (PABPC1). Local translation of mRNAs at organelles is a means to spatially control the synthesis of proteins. RNA-Seq data demonstrate that dAKAP1 binds mRNAs encoding proteins required for mitochondrial metabolism, including succinate dehydrogenase. Functional studies suggest that the loss of dAKAP1-RNA interactions reduces mitochondrial electron transport chain activity. Hence, dAKAP1 plays a previously unappreciated role as a molecular interface between second messenger signaling and local protein synthesis machinery.
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Affiliation(s)
- Laura Gabrovsek
- Department of Pharmacology, University of Washington, Seattle, Washington, USA
- Program in Molecular and Cellular Biology, University of Washington, Seattle, Washington, USA
| | - Kerrie B Collins
- Department of Pharmacology, University of Washington, Seattle, Washington, USA
| | - Stacey Aggarwal
- Department of Pharmacology, University of Washington, Seattle, Washington, USA
| | - Lauren M Saunders
- Program in Molecular and Cellular Biology, University of Washington, Seattle, Washington, USA
- Department of Genome Sciences, University of Washington, Seattle, Washington, USA
| | - Ho-Tak Lau
- Department of Pharmacology, University of Washington, Seattle, Washington, USA
| | - Danny Suh
- Department of Pharmacology, University of Washington, Seattle, Washington, USA
| | - Yasemin Sancak
- Department of Pharmacology, University of Washington, Seattle, Washington, USA
| | - Cole Trapnell
- Department of Genome Sciences, University of Washington, Seattle, Washington, USA
| | - Shao-En Ong
- Department of Pharmacology, University of Washington, Seattle, Washington, USA
| | - F Donelson Smith
- Department of Pharmacology, University of Washington, Seattle, Washington, USA
| | - John D Scott
- Department of Pharmacology, University of Washington, Seattle, Washington, USA
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204
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Yan X, Qu X, Tian R, Xu L, Jin X, Yu S, Zhao Y, Ma J, Liu Y, Sun L, Su J. Hypoxia-induced NAD + interventions promote tumor survival and metastasis by regulating mitochondrial dynamics. Life Sci 2020; 259:118171. [PMID: 32738362 DOI: 10.1016/j.lfs.2020.118171] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 07/16/2020] [Accepted: 07/27/2020] [Indexed: 02/08/2023]
Abstract
Hypoxia, an important feature of the tumor microenvironment, is responsible for the chemo-resistance and metastasis of malignant solid tumors. Recent studies indicated that mitochondria undergo morphological transitions as an adaptive response to maintain self-stability and connectivity under hypoxic conditions. NAD+ may not only provide reducing equivalents for biosynthetic reactions and in determining energy production, but also functions as a signaling molecule in mitochondrial dynamics regulation. In this review, we describe the upregulated KDAC deacetylase expression in the mitochondria and cytoplasm of tumor cells that results from sensing the changes in NAD+ to control mitochondrial dynamics and distribution, which is responsible for survival and metastasis in hypoxia.
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Affiliation(s)
- Xiaoyu Yan
- Key Laboratory of Pathobiology, Ministry of Education, Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Xianzhi Qu
- Department of Hepatobiliary & Pancreatic Surgery, The Second Hospital of Jilin University, Jilin University, Changchun, Jilin 130021, China
| | - Rui Tian
- Key Laboratory of Pathobiology, Ministry of Education, Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Long Xu
- Key Laboratory of Pathobiology, Ministry of Education, Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Xue Jin
- Key Laboratory of Pathobiology, Ministry of Education, Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Sihang Yu
- Key Laboratory of Pathobiology, Ministry of Education, Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Yuanxin Zhao
- Key Laboratory of Pathobiology, Ministry of Education, Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Jiaoyan Ma
- Key Laboratory of Pathobiology, Ministry of Education, Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Yanan Liu
- Key Laboratory of Pathobiology, Ministry of Education, Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Liankun Sun
- Key Laboratory of Pathobiology, Ministry of Education, Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, China.
| | - Jing Su
- Key Laboratory of Pathobiology, Ministry of Education, Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, China.
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205
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Mitochondria at the Crossroads of Physiology and Pathology. J Clin Med 2020; 9:jcm9061971. [PMID: 32599695 PMCID: PMC7355906 DOI: 10.3390/jcm9061971] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 06/22/2020] [Indexed: 12/27/2022] Open
Abstract
Mitochondria play a crucial role in cell life and death by regulating bioenergetic and biosynthetic pathways. They are able to adapt rapidly to different microenvironmental stressors by accommodating the metabolic and biosynthetic needs of the cell. Mounting evidence places mitochondrial dysfunction at the core of several diseases, notably in the context of pathologies of the cardiovascular and central nervous system. In addition, mutations in some mitochondrial proteins are bona fide cancer drivers. Better understanding of the functions of these multifaceted organelles and their components may finetune our knowledge on the molecular bases of certain diseases and suggest new therapeutic avenues.
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206
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Vivas-Ruiz DE, Sandoval GA, Gonzalez-Kozlova E, Zarria-Romero J, Lazo F, Rodríguez E, Magalhães HPB, Chávez-Olortegui C, Oliveira LS, Alvarenga VG, Urra FA, Toledo J, Yarlequé A, Eble JA, Sanchez EF. Fibrinogen-clotting enzyme, pictobin, from Bothrops pictus snake venom. Structural and functional characterization. Int J Biol Macromol 2020; 153:779-795. [PMID: 32169454 DOI: 10.1016/j.ijbiomac.2020.03.055] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 03/09/2020] [Accepted: 03/09/2020] [Indexed: 12/14/2022]
Abstract
A thrombin-like enzyme, pictobin, was purified from Bothrops pictus snake venom. It is a 41-kDa monomeric glycoprotein as showed by mass spectrometry and contains approx. 45% carbohydrate by mass which could be removed with N-glycosidase. Pictobin coagulates plasma and fibrinogen, releasing fibrinopeptide A and induces the formation of a friable/porous fibrin network as visualized by SEM. The enzyme promoted platelet aggregation in human PRP and defibrination in mouse model and showed catalytic activity on chromogenic substrates S-2266, S-2366, S-2160 and S-2238. Pictobin interacts with the plasma inhibitor α2-macroglobulin, which blocks its interaction with fibrinogen but not with the small substrate BApNA. Heparin does not affect its enzymatic activity. Pictobin cross reacted with polyvalent bothropic antivenom, and its deglycosylated form reduced its catalytic action and antivenom reaction. In breast and lung cancer cells, pictobin inhibits the fibronectin-stimulated migration. Moreover, it produces strong NADH oxidation, mitochondrial depolarization, ATP decrease and fragmentation of mitochondrial network. These results suggest by first time that a snake venom serinprotease produces mitochondrial dysfunction by affecting mitochondrial dynamics and bioenergetics. Structural model of pictobin reveals a conserved chymotrypsin fold β/β hydrolase. These data indicate that pictobin has therapeutic potential in the treatment of cardiovascular disorders and metastatic disease.
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Affiliation(s)
- Dan E Vivas-Ruiz
- Laboratorio de Biología Molecular, Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos, Lima, Perú, Av. Venezuela Cdra 34 S/N, Ciudad Universitaria, Lima 01, Lima, Peru.
| | - Gustavo A Sandoval
- Laboratorio de Biología Molecular, Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos, Lima, Perú, Av. Venezuela Cdra 34 S/N, Ciudad Universitaria, Lima 01, Lima, Peru
| | - Edgar Gonzalez-Kozlova
- Department of Genetics and Genomic Sciences, Icahn School for Data Science and Genomic Technology, New York, NYC, USA
| | - Jacquelyne Zarria-Romero
- Laboratorio de Reproducción y Biología del Desarrollo, Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos, Lima, Perú, Av. Venezuela ra 34 S/N, Ciudad Universitaria, Lima 01, Lima, Peru
| | - Fanny Lazo
- Laboratorio de Biología Molecular, Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos, Lima, Perú, Av. Venezuela Cdra 34 S/N, Ciudad Universitaria, Lima 01, Lima, Peru
| | - Edith Rodríguez
- Laboratorio de Biología Molecular, Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos, Lima, Perú, Av. Venezuela Cdra 34 S/N, Ciudad Universitaria, Lima 01, Lima, Peru
| | - Henrique P B Magalhães
- Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Minas Gerais, Brazil
| | - Carlos Chávez-Olortegui
- Departamento de Bioquímica-Inmunología, Instituto de Ciências Biologicas, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Minas Gerais, Brazil
| | - Luciana S Oliveira
- Research and Development Center, Ezequiel Dias Foundation, 30510-010 Belo Horizonte, MG, Brazil
| | - Valeria G Alvarenga
- Research and Development Center, Ezequiel Dias Foundation, 30510-010 Belo Horizonte, MG, Brazil
| | - Félix A Urra
- Programa de Farmacología Clínica y Molecular, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de Chile, Independencia 1027, Casilla 7, Santiago 7800003, Chile
| | - Jorge Toledo
- Instituto de Neurociencia Biomédica, Facultad de Medicina, Universidad de Chile, Independencia 1027, Santiago 8380453, Chile; Facultad de Ciencias de la Salud, Universidad San Sebastián, Lota 2465, Providencia, Santiago 7510157, Chile
| | - Armando Yarlequé
- Laboratorio de Biología Molecular, Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos, Lima, Perú, Av. Venezuela Cdra 34 S/N, Ciudad Universitaria, Lima 01, Lima, Peru
| | - Johannes A Eble
- Institute for Physiological Chemistry and Pathobiochemistry, University of Münster, 48149 Münster, Germany
| | - Eladio F Sanchez
- Research and Development Center, Ezequiel Dias Foundation, 30510-010 Belo Horizonte, MG, Brazil
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207
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Chang JC, Chang HS, Wu YC, Cheng WL, Lin TT, Chang HJ, Chen ST, Liu CS. Antitumor Actions of Intratumoral Delivery of Membrane-Fused Mitochondria in a Mouse Model of Triple-Negative Breast Cancers. Onco Targets Ther 2020; 13:5241-5255. [PMID: 32606744 PMCID: PMC7294573 DOI: 10.2147/ott.s238143] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 04/23/2020] [Indexed: 12/13/2022] Open
Abstract
Background The transfer of whole mitochondria has been demonstrated to be beneficial for treating breast cancer because it induces apoptosis and drug sensitivity; however, in vivo evidence of this benefit remains scant. The present study compared the transplantation of mitochondria with instinctive (Mito) and membrane-fused morphologies induced by Pep-1 conjugation (P-Mito) using a mouse model of triple-negative breast cancers. Materials and Methods Mice with advanced severe immunodeficiency received orthotopic implantation of MDA-MB-231 human breast cancer cells followed by transplants of 5-bromo-2'-deoxyuridine (BrdU)-labeled Mito or P-Mito (200 μg [10 μg/μL]) through intratumoral injection at multiple points once a week for 4 weeks. Results After 1 month of consecutive treatment, 8.2% and 14.2% of the BrdU-labeled mitochondria were preserved in tumors of the Mito and P-Mito groups, respectively. Both Pep-1 and P-Mito treatments reduced tumor weight (21.7% ± 2.43% vs 40.6% ± 2.28%) and led to marked inhibition of Ki67 staining and angiogenesis. However, only the P-Mito group exhibited obvious necrosis and DNA fragmentation accompanied by an altered tumor microenvironment, which included reduced oxidative stress and size of cancer-associated fibroblast populations and enhanced immune cell infiltration. Transmission electron microscopy images further revealed an elongated network of perinuclear mitochondria fused with a few peripheral mitochondria in the nonnecrotic area in the P-Mito group as well as increases in mitochondrial fusion proteins and parkin compared with mitochondrial fission proteins. Conclusion In this study, the results of mitochondrial transplantation emphasized that the facilitation of mitochondrial fusion is a critical regulator in breast cancer therapy.
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Affiliation(s)
- Jui-Chih Chang
- Vascular and Genomic Center, Changhua Christian Hospital, Changhua 50094, Taiwan
| | - Huei-Shin Chang
- Vascular and Genomic Center, Changhua Christian Hospital, Changhua 50094, Taiwan
| | - Yao-Chung Wu
- Department of Medicine, College of Medicine, China Medical University, Taichung 40447, Taiwan
| | - Wen-Ling Cheng
- Vascular and Genomic Center, Changhua Christian Hospital, Changhua 50094, Taiwan
| | - Ta-Tsung Lin
- Vascular and Genomic Center, Changhua Christian Hospital, Changhua 50094, Taiwan
| | - Hui-Ju Chang
- Vascular and Genomic Center, Changhua Christian Hospital, Changhua 50094, Taiwan
| | - Shou-Tung Chen
- Comprehensive Breast Cancer Center, Changhua Christian Hospital, Changhua 50094, Taiwan.,Department of Medical Research, Changhua Christian Hospital, Changhua 50094, Taiwan
| | - Chin-San Liu
- Vascular and Genomic Center, Changhua Christian Hospital, Changhua 50094, Taiwan.,Department of Neurology, Changhua Christian Hospital, Changhua 50094, Taiwan.,School of Chinese Medicine, Graduate Institute of Chinese Medicine, Graduate Institute of Integrated Medicine, College of Chinese Medicine, Research Center for Chinese Medicine and Acupuncture, China Medical University, Taichung 40447, Taiwan
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208
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Xie YJ, Gao WN, Wu QB, Yao XJ, Jiang ZB, Wang YW, Wang WJ, Li W, Hussain S, Liu L, Leung ELH, Fan XX. Chelidonine selectively inhibits the growth of gefitinib-resistant non-small cell lung cancer cells through the EGFR-AMPK pathway. Pharmacol Res 2020; 159:104934. [PMID: 32464330 DOI: 10.1016/j.phrs.2020.104934] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 05/14/2020] [Accepted: 05/14/2020] [Indexed: 02/08/2023]
Abstract
Tyrosine kinase inhibitors (TKIs) have been widely used for the clinical treatment of patients with non-small cell lung cancer (NSCLC) harboring mutations in the EGFR. Unfortunately, due to the secondary mutation in EGFR, eventual drug-resistance is inevitable. Therefore, to overcome the resistance, new agent is urgently required. Chelidonine, extracted from the roots of Chelidonium majus, was proved to effectively suppress the growth of NSCLC cells with EGFR double mutation. Proteomics analysis indicated that mitochondrial respiratory chain was significantly inhibited by chelidonine, and inhibitor of AMPK effectively blocked the apoptosis induced by chelidonine. Molecular dynamics simulations indicated that chelidonine could directly bind to EGFR and showed a much higher binding affinity to EGFRL858R/T790M than EGFRWT, which demonstrated that chelidonine could selectively inhibit the phosphorylation of EGFR in cells with EGFR double-mutation. In vivo study revealed that chelidonine has a similar inhibitory effect like second generation TKI Afatinib. In conclusion, targeting EGFR and inhibition of mitochondrial function is a promising anti-cancer therapeutic strategy for inhibiting NSCLC with EGFR mutation and TKI resistance.
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Affiliation(s)
- Ya-Jia Xie
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, SAR, PR China
| | - Wei-Na Gao
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, SAR, PR China; Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong, PR China
| | - Qi-Biao Wu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, SAR, PR China
| | - Xiao-Jun Yao
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, SAR, PR China
| | - Ze-Bo Jiang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, SAR, PR China
| | - Yu-Wei Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, SAR, PR China
| | - Wen-Jun Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, SAR, PR China
| | - Wei Li
- TianJin NanKai Hospital, TianJin, PR China
| | - Shahid Hussain
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, SAR, PR China
| | - Liang Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, SAR, PR China.
| | - Elaine Lai-Han Leung
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, SAR, PR China.
| | - Xing-Xing Fan
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, SAR, PR China.
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209
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Yang C, Song G, Lim W. Methiothepin mesylate causes apoptosis of human prostate cancer cells by mediating oxidative stress and mitochondrial dysfunction. Free Radic Biol Med 2020; 150:12-22. [PMID: 32035100 DOI: 10.1016/j.freeradbiomed.2020.01.187] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 01/30/2020] [Accepted: 01/31/2020] [Indexed: 12/27/2022]
Abstract
Prostate cancer is difficult to treat if it metastasizes to other organs. The development of prostate cancer independent of androgen is closely related to the action of neuroendocrine products. Serotonin promotes cell growth in various cancers, and antagonists for serotonin receptors are known to inhibit proliferation and induce cell death in various carcinomas. However, little is known about how antagonists for serotonin receptor function in prostate cancer. We verified apoptotic cell death in prostate cancer cell lines after treatment with methiothepin mesylate (MET), an antagonist for serotonin receptor 5-HT1. MET induced hydrogen peroxide (H2O2) production and mitochondrial Ca2+ overload. Moreover, MET induced changes in the expression of proteins associated with endoplasmic reticulum stress, autophagy, and mitochondrial membrane potential. MET also promoted phosphorylation of JNK, which induced cell death mediated by oxidant production, as evidenced by the JNK inhibitor and oxidant scavenger. Finally, MET has the potential to prevent metastasis by inhibiting the migration of prostate cancer cells. Thus, we show that MET is a potentially novel anticancer agent that can suppress the development of prostate cancer caused by neuroendocrine differentiation.
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Affiliation(s)
- Changwon Yang
- Institute of Animal Molecular Biotechnology and Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Republic of Korea
| | - Gwonhwa Song
- Institute of Animal Molecular Biotechnology and Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Republic of Korea.
| | - Whasun Lim
- Department of Food and Nutrition, Kookmin University, Seoul, 02707, Republic of Korea.
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210
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Ghosh A, Chatterjee K, Chowdhury AR, Barui A. Clinico-pathological significance of Drp1 dysregulation and its correlation to apoptosis in oral cancer patients. Mitochondrion 2020; 52:115-124. [PMID: 32169612 DOI: 10.1016/j.mito.2020.03.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 01/06/2020] [Accepted: 03/09/2020] [Indexed: 12/14/2022]
Abstract
Dysregulation in mitochondrial dynamics has been associated with several diseases including cancer. Present study assessed the alteration in mitochondrial fission protein (Drp1) in oral epithelial cells collected from clinically confirmed pre-cancer and cancer patients and further correlates it with the cellular apoptosis signaling. Results indicate the ROS accumulation in OSCC patients is accompanied by several changes including increase in mitochondrial mass, expression of mitochondrial fission protein (Drp1) and alteration in apoptotic signaling. The positive co-relation has been observed between the expressions of anti-apoptotic Bcl-2proteinswith mitochondrial fission protein Drp1. Higher mitochondrial fission in oral cancer cells was also correlated with the increased expression of cell cycle marker CyclinD1 indicating highly proliferative stage of oral cancer cells. The clinical correlation can be extended to develop biomarker for diagram and program in oral cancer management.
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Affiliation(s)
- Aritri Ghosh
- Centre for Healthcare Science and Technology, Indian Institute of Engineering, Science and Technology, P.O. Botanic Garden, Shibpur, Howrah 711103, WB, India
| | - Kabita Chatterjee
- Department of Oral and Maxillofacial Pathology, Buddha Institute of Dental Sciences, West of TV Tower, Gandhinagar, Kankarbagh, Patna 800020, Bihar, India
| | - Amit Roy Chowdhury
- Department of Aerospace and Applied Mechanics, Indian Institute of Engineering Science and Technology, Shibpur, P.O. Botanic Garden, Shibpur, Howrah 711103, WB, India
| | - Ananya Barui
- Centre for Healthcare Science and Technology, Indian Institute of Engineering, Science and Technology, P.O. Botanic Garden, Shibpur, Howrah 711103, WB, India.
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211
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Jiang XL, Liu JH, Que YT, Que YM, Hu PP, Huang CZ, Tong XY. Multifunctional Single-Layered Graphene Quantum Dots Used for Diagnosis of Mitochondrial Malfunction-Related Diseases. ACS Biomater Sci Eng 2020; 6:1727-1734. [PMID: 33455364 DOI: 10.1021/acsbiomaterials.9b01395] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Mitochondria are critical organelles in eukaryotes that efficiently generate adenosine 5'-triphosphate (ATP) for various biological activities, and any defect in the process of ATP synthesis may lead to mitochondrial dysfunction and directly link to a variety of medical disorders. Monitoring the ATP variations in cells is key for innovative early diagnosis of mitochondrial diseases. Herein, multifunctional single-layered graphene quantum dots (s-GQDs) with bright green emission were constructed, which exhibit strong binding affinity for ATP and good mitochondria targeting ability. Using the proposed s-GQDs, we successfully discriminated the primary smooth muscle cells isolated from the transgenic mouse (heterozygote sarco/endoplasmic reticulum Ca2+ ATPase (SERCA) 2 C674S knock-in mouse) with mitochondrial disorders or their littermate controls, indicating s-GQDs as promising probes for the study of cell metabolism and mitochondrial malfunction-related diseases, and targeting endoplasmic reticulum stress is an effective way to modulate metabolic pathways relevant to SERCA 2 inactivity mitochondrial dysfunction.
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Affiliation(s)
- Xiao Li Jiang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, PR China
| | - Jia Hui Liu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Yan Ting Que
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, PR China
| | - Yu Mei Que
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Ping Ping Hu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, PR China
| | - Cheng Zhi Huang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Xiao Yong Tong
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, PR China
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212
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Fenton SE, Birnbaum LS. CHDS: A national treasure that keeps on giving. Reprod Toxicol 2020; 92:11-13. [PMID: 32097706 PMCID: PMC7864627 DOI: 10.1016/j.reprotox.2020.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Suzanne E Fenton
- National Toxicology Program Laboratory, Division of the National Toxicology Program (DNTP), National Institute for Environmental Health Sciences (NIEHS), Research Triangle Park, NC, United States.
| | - Linda S Birnbaum
- National Toxicology Program Laboratory, Division of the National Toxicology Program (DNTP), National Institute for Environmental Health Sciences (NIEHS), Research Triangle Park, NC, United States
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213
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Su S, Wu J, Gao Y, Luo Y, Yang D, Wang P. The pharmacological properties of chrysophanol, the recent advances. Biomed Pharmacother 2020; 125:110002. [PMID: 32066044 DOI: 10.1016/j.biopha.2020.110002] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 01/16/2020] [Accepted: 02/06/2020] [Indexed: 12/11/2022] Open
Abstract
As a universal Chinese medicine, Rhei Radix et Rhizoma was used for centuries in different fields including pharmaceutical, health care and cosmetics. Chrysophanol (Chr) is one of the most important anthraquinone components isolated from plants of the Rheum genus. Current reports show that in Rheum officinale, Chr is the most abundant free anthraquinone compound [1] and exerts a number of beneficial effects, such as anti-inflammation, anti-cancer, and anti-depressive effects and offers neuroprotection. We collected information about Chr from the Internet databases PubMed, Web of Science, Europe PMC and CNKI with a combination of keywords including "Chr", "Pharmacology", and "Pharmacokinetics". All data about this ingredient in this review were extracted from articles published before September 2019. Based on the literature found, we concluded that (1) Chr exhibited potential anti-inflammation, anti-cardiovascular disease (CVD)and anti-cancer activities by regulating signaling pathway transduction (NF-κB, MAPK, PI3K/Akt, etc.); (2) compared with free Chr, pharmacokinetic studies revealed that other forms of Chr, such as nanoparticle-based and liposome-based Chr, showed high bioavailability. Nevertheless, we also found that the understanding of the exact differences in the regulation of multiple molecular signaling pathways is in a preliminary stage and needs to be clarified. Moreover, further studies are required to determine the apoptotic mechanism of Chr in cancer cells. Finally, we found that (3) structure modification studies demonstrated potential relationships between structure and drug activity. The purpose of this review is to summarize the pharmacological activities, intracorporal processes and structure-activity relationships of Chr and to provide an up-to-date reference for further research and clinical applications.
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Affiliation(s)
- Siyu Su
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Jiasi Wu
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Yue Gao
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Yu Luo
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Dong Yang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Ping Wang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China.
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214
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Wang X, Lai S, Ye Y, Hu Y, Pan D, Bai X, Shen J. Conditional knockout of pyruvate dehydrogenase in mouse pancreatic β‑cells causes morphological and functional changes. Mol Med Rep 2020; 21:1717-1726. [PMID: 32319629 PMCID: PMC7057776 DOI: 10.3892/mmr.2020.10993] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 08/12/2019] [Indexed: 12/14/2022] Open
Abstract
Diabetes mellitus is a metabolic disorder predominantly caused by the dysfunction of pancreatic β-cells. This dysfunction is partly caused by the dysregulation of pyruvate dehydrogenase (PDH), which acts as an important mediator of pyruvate oxidation after glycolysis and fuels the tricarboxylic acid cycle. Previous studies have reported decreased PDH expression in rodent models and humans with type 2 diabetes mellitus (T2DM), suggesting that PDH may play an important role in the development of T2DM. However, the mechanism by which PDH affects insulin secretion and β-cell development is poorly understood. Using immunofluorescence staining, the present study found that the expression of pyruvate dehydrogenase E1-α subunit (PDHA1; encoded by the PDHA1 gene) in the islets of type 2 diabetic mice (db/db mice) was lower than in wild-type mice, which indicated the possible association between PDHA1and diabetes. To further understand this mechanism, an inducible, islet-specific PDHA1 knockout mouse (βKO) model was established. The phenotype was authenticated, and the blood glucose levels and islet function between the βKO and control mice were compared. Though no changes were found in food intake, development status, fasting blood glucose or weight between the groups, the level of insulin secretion at 30 min after glucose injection in the βKO group was significantly lower compared with the control group. Furthermore, the performed of the βKO mice on the intraperitoneal glucose tolerance test was visibly impaired when compared with the control mice. Pancreatic tissues were collected for hematoxylin and eosin staining, immunohistochemical and confocal laser-scanning microscopy analysis. Examination of the islets from the βKO mouse model indicated that abolishing the expression of PDH caused a compensatory islet enlargement and impaired insulin secretion.
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Affiliation(s)
- Xiao Wang
- Shunde Hospital of Southern Medical University, Foshan, Guangdong 528308, P.R. China
| | - Shuchang Lai
- The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan 570100, P.R. China
| | - Yanshi Ye
- Department of Endocrinology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong 510000, P.R. China
| | - Yuanyuan Hu
- Shenzhen Nan Shan Hospital, Shenzhen, Guangdong 518052, P.R. China
| | - Daoyan Pan
- Department of Endocrinology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong 510000, P.R. China
| | - Xiaochun Bai
- Department of Endocrinology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong 510000, P.R. China
| | - Jie Shen
- Department of Endocrinology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong 510000, P.R. China
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215
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Hu J, Zhang H, Li J, Jiang X, Zhang Y, Wu Q, Shen L, Shi J, Gao N. ROCK1 activation-mediated mitochondrial translocation of Drp1 and cofilin are required for arnidiol-induced mitochondrial fission and apoptosis. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2020; 39:37. [PMID: 32075676 PMCID: PMC7031977 DOI: 10.1186/s13046-020-01545-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 02/14/2020] [Indexed: 01/11/2023]
Abstract
BACKGROUND Arnidiol is a pentacyclic triterpene diol that has multiple pharmacological activities. However, the apoptotic activities of arnidiol in human cancer cells have not yet been explored, nor has the mechanism by which arnidiol induces apoptosis been examined in depth. METHODS MDA-MB-231 cells and xenografted mice were treated with arnidiol. Mitochondrial fission and apoptosis were determined by immunofluorescence, flow cytometry and related molecular biological techniques. The interaction and colocalization of cofilin and Drp1 was determined by immunoprecipitation and immunofluorescence assays. RESULTS Arnidiol induces mitochondrial fission and apoptosis through mitochondrial translocation of Drp1 and cofilin. Importantly, the interaction of Drp1 and cofilin in mitochondria is involved in arnidiol-induced mitochondrial fission and apoptosis. Knockdown of either Drp1 or cofilin abrogated arnidiol-induced mitochondrial translocation, interaction of Drp1 and cofilin, mitochondrial fission and apoptosis. Only dephosphorylated Drp1 (Ser637) and cofilin (Ser3) were translocated to the mitochondria. Mutants of Drp1 S637A and cofilin S3A, which mimic the dephosphorylated forms, enhanced mitochondrial fission and apoptosis induced by arnidiol, whereas mutants of Drp1 S637D and cofilin S3E, which mimic the phosphorylated forms, suppressed mitochondrial fission and apoptosis induced by arnidiol. A mechanistic study revealed that ROCK1 activation plays an important role in the arnidiol-mediated Drp1 and cofilin dephosphorylation and mitochondrial translocation, mitochondrial fission, and apoptosis. CONCLUSIONS Our data reveal a novel role of both Drp1 and cofilin in the regulation of mitochondrial fission and apoptosis and suggest that arnidiol could be developed as a potential agent for the treatment of human cancer.
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Affiliation(s)
- Jinjiao Hu
- College of Pharmacy, Army Medical University, 30 Gaotanyan Street, Shapingba District, Chongqing, 400038, China
| | - Hongwei Zhang
- College of Pharmacy, Army Medical University, 30 Gaotanyan Street, Shapingba District, Chongqing, 400038, China
| | - Jie Li
- College of Pharmacy, Army Medical University, 30 Gaotanyan Street, Shapingba District, Chongqing, 400038, China
| | - Xiuxing Jiang
- College of Pharmacy, Army Medical University, 30 Gaotanyan Street, Shapingba District, Chongqing, 400038, China
| | - Yanhao Zhang
- College of Pharmacy, Army Medical University, 30 Gaotanyan Street, Shapingba District, Chongqing, 400038, China
| | - Qin Wu
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Liwen Shen
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Jingshan Shi
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China.
| | - Ning Gao
- College of Pharmacy, Army Medical University, 30 Gaotanyan Street, Shapingba District, Chongqing, 400038, China. .,Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China.
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216
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Metabolic reprogramming and disease progression in cancer patients. Biochim Biophys Acta Mol Basis Dis 2020; 1866:165721. [PMID: 32057942 DOI: 10.1016/j.bbadis.2020.165721] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 01/22/2020] [Accepted: 02/09/2020] [Indexed: 12/19/2022]
Abstract
Genomics has contributed to the treatment of a fraction of cancer patients. However, there is a need to profile the proteins that define the phenotype of cancer and its pathogenesis. The reprogramming of metabolism is a major trait of the cancer phenotype with great potential for prognosis and targeted therapy. This review overviews the major changes reported in the steady-state levels of proteins of metabolism in primary carcinomas, paying attention to those enzymes that correlate with patients' survival. The upregulation of enzymes of glycolysis, pentose phosphate pathway, lipogenesis, glutaminolysis and the antioxidant defense is concurrent with the downregulation of mitochondrial proteins involved in oxidative phosphorylation, emphasizing the potential of mitochondrial metabolism as a promising therapeutic target in cancer. We stress that high-throughput quantitative expression profiling of differentially expressed proteins in large cohorts of carcinomas paired with normal tissues will accelerate translation of metabolism to a successful personalized medicine in cancer.
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217
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Abstract
Significance: Mitochondria undergo constant morphological changes through fusion, fission, and mitophagy. As the key organelle in cells, mitochondria are responsible for numerous essential cellular functions such as metabolism, regulation of calcium (Ca2+), generation of reactive oxygen species, and initiation of apoptosis. Unsurprisingly, mitochondrial dysfunctions underlie many pathologies including cancer. Recent Advances: Currently, the gold standard for cancer treatment is chemotherapy, radiation, and surgery. However, the efficacy of these treatments varies across different cancer cells. It has been suggested that mitochondria may be at the center of these diverse responses. In the past decade, significant advances have been made in understanding distinct types of mitochondrial dysfunctions in cancer. Through investigations of underlying mechanisms, more effective treatment options are developed. Critical Issues: We summarize various mitochondria dysfunctions in cancer progression that have led to the development of therapeutic options. Current mitochondrial-targeted therapies and challenges are discussed. Future Directions: To address the "root" of cancer, utilization of mitochondrial-targeted therapy to target cancer stem cells may be valuable. Investigation of other areas such as mitochondrial trafficking may offer new insights into cancer therapy. Moreover, common antibiotics could be explored as mitocans, and synthetic lethality screens can be utilized to overcome the plasticity of cancer cells.
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Affiliation(s)
- Hsin Yao Chiu
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Emmy Xue Yun Tay
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Derrick Sek Tong Ong
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Reshma Taneja
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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218
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Kang L, Liu S, Li J, Tian Y, Xue Y, Liu X. The mitochondria-targeted anti-oxidant MitoQ protects against intervertebral disc degeneration by ameliorating mitochondrial dysfunction and redox imbalance. Cell Prolif 2020; 53:e12779. [PMID: 32020711 PMCID: PMC7106957 DOI: 10.1111/cpr.12779] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 01/03/2020] [Accepted: 01/20/2020] [Indexed: 12/17/2022] Open
Abstract
Objective Mitochondrial dysfunction, oxidative stress and nucleus pulposus (NP) cell apoptosis are important contributors to the development and pathogenesis of intervertebral disc degeneration (IDD). Here, we comprehensively evaluated the effects of mitochondrial dynamics, mitophagic flux and Nrf2 signalling on the mitochondrial quality control, ROS production and NP cell survival in in vitro and ex vivo compression models of IDD and explored the effects of the mitochondria‐targeted anti‐oxidant MitoQ and its mechanism. Material and methods Human NP cells were exposed to mechanical compression to mimic pathological conditions. Results Compression promoted oxidative stress, mitochondrial dysfunction and NP cell apoptosis. Mechanistically, compression disrupted the mitochondrial fission/fusion balance, inducing fatal fission. Concomitantly, PINK1/Parkin‐mediated mitophagy was activated, whereas mitophagic flux was blocked. Nrf2 anti‐oxidant pathway was insufficiently activated. These caused the damaged mitochondria accumulation and persistent oxidative damage. Moreover, MitoQ restored the mitochondrial dynamics balance, alleviated the impairment of mitophagosome‐lysosome fusion and lysosomal function and enhanced the Nrf2 activity. Consequently, damaged mitochondria were eliminated, redox balance was improved, and cell survival increased. Additionally, MitoQ alleviated IDD in an ex vivo rat compression model. Conclusions These findings suggest that comodulation of mitochondrial dynamics, mitophagic flux and Nrf2 signalling alleviates sustained mitochondrial dysfunction and oxidative stress and represents a promising therapeutic strategy for IDD; furthermore, our results provide evidence that MitoQ might serve as an effective therapeutic agent for this disorder.
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Affiliation(s)
- Liang Kang
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin, China
| | - Shiwei Liu
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin, China
| | - Jingchao Li
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin, China.,Department of Orthopedics, Tianjin Jinghai District Hospital, Tianjin, China
| | - Yueyang Tian
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin, China
| | - Yuan Xue
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin, China
| | - Xiaozhi Liu
- Central Laboratory, The Fifth Central Hospital of Tianjin, Tianjin, China
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219
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Wu D, Ma Y, Cao Y, Zhang T. Mitochondrial toxicity of nanomaterials. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 702:134994. [PMID: 31715400 DOI: 10.1016/j.scitotenv.2019.134994] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 10/11/2019] [Accepted: 10/14/2019] [Indexed: 05/11/2023]
Abstract
In recent years, nanomaterials have been widely applied in electronics, food, biomedicine and other fields, resulting in increased human exposure and consequent research focus on their biological and toxic effects. Mitochondria, the main target organelle for nanomaterials (NM), play a critical role in their toxic activities. Several studies to date have shown that nanomaterials cause alterations in mitochondrial morphology, mitochondrial membrane potential, opening of the mitochondrial permeability transition pore (MPTP) and mitochondrial respiratory function, and promote cytochrome C release. An earlier mitochondrial toxicity study of NMs additionally reported induction of mitochondrial dynamic changes. Here, we have reviewed the mitochondrial toxicity of NMs and provided a scientific basis for the contribution of mitochondria to the toxicological effects of different NMs along with approaches to reduce mitochondrial and, consequently, overall toxicity of NMs.
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Affiliation(s)
- Daming Wu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Ying Ma
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Yuna Cao
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Ting Zhang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China.
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220
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Dong Z, Pu L, Cui H. Mitoepigenetics and Its Emerging Roles in Cancer. Front Cell Dev Biol 2020; 8:4. [PMID: 32039210 PMCID: PMC6989428 DOI: 10.3389/fcell.2020.00004] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 01/08/2020] [Indexed: 12/11/2022] Open
Abstract
In human beings, there is a ∼16,569 bp circular mitochondrial DNA (mtDNA) encoding 22 tRNAs, 12S and 16S rRNAs, 13 polypeptides that constitute the central core of ETC/OxPhos complexes, and some non-coding RNAs. Recently, mtDNA has been shown to have some covalent modifications such as methylation or hydroxylmethylation, which play pivotal epigenetic roles in mtDNA replication and transcription. Post-translational modifications of proteins in mitochondrial nucleoids such as mitochondrial transcription factor A (TFAM) also emerge as essential epigenetic modulations in mtDNA replication and transcription. Post-transcriptional modifications of mitochondrial RNAs (mtRNAs) including mt-rRNAs, mt-tRNAs and mt-mRNAs are important epigenetic modulations. Besides, mtDNA or nuclear DNA (n-DNA)-derived non-coding RNAs also play important roles in the regulation of translation and function of mitochondrial genes. These evidences introduce a novel concept of mitoepigenetics that refers to the study of modulations in the mitochondria that alter heritable phenotype in mitochondria itself without changing the mtDNA sequence. Since mitochondrial dysfunction contributes to carcinogenesis and tumor development, mitoepigenetics is also essential for cancer. Understanding the mode of actions of mitoepigenetics in cancers may shade light on the clinical diagnosis and prevention of these diseases. In this review, we summarize the present study about modifications in mtDNA, mtRNA and nucleoids and modulations of mtDNA/nDNA-derived non-coding RNAs that affect mtDNA translation/function, and overview recent studies of mitoepigenetic alterations in cancer.
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Affiliation(s)
- Zhen Dong
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, Chongqing, China.,Cancer Center, Medical Research Institute, Southwest University, Chongqing, China.,Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing, China.,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Southwest University, Chongqing, China
| | - Longjun Pu
- Umeå Centre for Molecular Medicine, Umeå University, Umeå, Sweden
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, Chongqing, China.,Cancer Center, Medical Research Institute, Southwest University, Chongqing, China.,Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing, China.,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Southwest University, Chongqing, China
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221
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Li M, Wang L, Wang Y, Zhang S, Zhou G, Lieshout R, Ma B, Liu J, Qu C, Verstegen MMA, Sprengers D, Kwekkeboom J, van der Laan LJW, Cao W, Peppelenbosch MP, Pan Q. Mitochondrial Fusion Via OPA1 and MFN1 Supports Liver Tumor Cell Metabolism and Growth. Cells 2020; 9:cells9010121. [PMID: 31947947 PMCID: PMC7017104 DOI: 10.3390/cells9010121] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 01/02/2020] [Indexed: 12/24/2022] Open
Abstract
Metabolic reprogramming universally occurs in cancer. Mitochondria act as the hubs of bioenergetics and metabolism. The morphodynamics of mitochondria, comprised of fusion and fission processes, are closely associated with mitochondrial functions and are often dysregulated in cancer. In this study, we aim to investigate the mitochondrial morphodynamics and its functional consequences in human liver cancer. We observed excessive activation of mitochondrial fusion in tumor tissues from hepatocellular carcinoma (HCC) patients and in vitro cultured tumor organoids from cholangiocarcinoma (CCA). The knockdown of the fusion regulator genes, OPA1 (Optic atrophy 1) or MFN1 (Mitofusin 1), inhibited the fusion process in HCC cell lines and CCA tumor organoids. This resulted in inhibition of cell growth in vitro and tumor formation in vivo, after tumor cell engraftment in mice. This inhibitory effect is associated with the induction of cell apoptosis, but not related to cell cycle arrest. Genome-wide transcriptomic profiling revealed that the inhibition of fusion predominately affected cellular metabolic pathways. This was further confirmed by the blocking of mitochondrial fusion which attenuated oxygen consumption and cellular ATP production of tumor cells. In conclusion, increased mitochondrial fusion in liver cancer alters metabolism and fuels tumor cell growth.
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Affiliation(s)
- Meng Li
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, 3015 CE Rotterdam, The Netherlands; (M.L.); (L.W.); (S.Z.); (G.Z.); (B.M.); (J.L.); (C.Q.); (D.S.); (J.K.); (W.C.); (M.P.P.)
| | - Ling Wang
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, 3015 CE Rotterdam, The Netherlands; (M.L.); (L.W.); (S.Z.); (G.Z.); (B.M.); (J.L.); (C.Q.); (D.S.); (J.K.); (W.C.); (M.P.P.)
| | - Yijin Wang
- Department of Pathology and Hepatology, Beijing 302 Hospital, Beijing 100039, China;
| | - Shaoshi Zhang
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, 3015 CE Rotterdam, The Netherlands; (M.L.); (L.W.); (S.Z.); (G.Z.); (B.M.); (J.L.); (C.Q.); (D.S.); (J.K.); (W.C.); (M.P.P.)
| | - Guoying Zhou
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, 3015 CE Rotterdam, The Netherlands; (M.L.); (L.W.); (S.Z.); (G.Z.); (B.M.); (J.L.); (C.Q.); (D.S.); (J.K.); (W.C.); (M.P.P.)
| | - Ruby Lieshout
- Department of Surgery, Erasmus MC-University Medical Center, 3015 CE Rotterdam, The Netherlands; (R.L.); (M.M.A.V.); (L.J.W.v.d.L.)
| | - Buyun Ma
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, 3015 CE Rotterdam, The Netherlands; (M.L.); (L.W.); (S.Z.); (G.Z.); (B.M.); (J.L.); (C.Q.); (D.S.); (J.K.); (W.C.); (M.P.P.)
| | - Jiaye Liu
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, 3015 CE Rotterdam, The Netherlands; (M.L.); (L.W.); (S.Z.); (G.Z.); (B.M.); (J.L.); (C.Q.); (D.S.); (J.K.); (W.C.); (M.P.P.)
| | - Changbo Qu
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, 3015 CE Rotterdam, The Netherlands; (M.L.); (L.W.); (S.Z.); (G.Z.); (B.M.); (J.L.); (C.Q.); (D.S.); (J.K.); (W.C.); (M.P.P.)
| | - Monique M. A. Verstegen
- Department of Surgery, Erasmus MC-University Medical Center, 3015 CE Rotterdam, The Netherlands; (R.L.); (M.M.A.V.); (L.J.W.v.d.L.)
| | - Dave Sprengers
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, 3015 CE Rotterdam, The Netherlands; (M.L.); (L.W.); (S.Z.); (G.Z.); (B.M.); (J.L.); (C.Q.); (D.S.); (J.K.); (W.C.); (M.P.P.)
| | - Jaap Kwekkeboom
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, 3015 CE Rotterdam, The Netherlands; (M.L.); (L.W.); (S.Z.); (G.Z.); (B.M.); (J.L.); (C.Q.); (D.S.); (J.K.); (W.C.); (M.P.P.)
| | - Luc J. W. van der Laan
- Department of Surgery, Erasmus MC-University Medical Center, 3015 CE Rotterdam, The Netherlands; (R.L.); (M.M.A.V.); (L.J.W.v.d.L.)
| | - Wanlu Cao
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, 3015 CE Rotterdam, The Netherlands; (M.L.); (L.W.); (S.Z.); (G.Z.); (B.M.); (J.L.); (C.Q.); (D.S.); (J.K.); (W.C.); (M.P.P.)
| | - Maikel P. Peppelenbosch
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, 3015 CE Rotterdam, The Netherlands; (M.L.); (L.W.); (S.Z.); (G.Z.); (B.M.); (J.L.); (C.Q.); (D.S.); (J.K.); (W.C.); (M.P.P.)
| | - Qiuwei Pan
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, 3015 CE Rotterdam, The Netherlands; (M.L.); (L.W.); (S.Z.); (G.Z.); (B.M.); (J.L.); (C.Q.); (D.S.); (J.K.); (W.C.); (M.P.P.)
- Correspondence: ; Tel.: +31-107037502
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222
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Zimmerman MA, Wilkison S, Qi Q, Chen G, Li PA. Mitochondrial dysfunction contributes to Rapamycin-induced apoptosis of Human Glioblastoma Cells - A synergistic effect with Temozolomide. Int J Med Sci 2020; 17:2831-2843. [PMID: 33162811 PMCID: PMC7645350 DOI: 10.7150/ijms.40159] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 01/03/2020] [Indexed: 12/22/2022] Open
Abstract
Mammalian target of rapamycin (mTOR) is upregulated in a high percentage of glioblastomas. While a well-known mTOR inhibitor, rapamycin, has been shown to reduce glioblastoma survival, the role of mitochondria in achieving this therapeutic effect is less well known. Here, we examined mitochondrial dysfunction mechanisms that occur with the suppression of mTOR signaling. We found that, along with increased apoptosis, and a reduction in transformative potential, rapamycin treatment significantly affected mitochondrial health. Specifically, increased production of reactive oxygen species (ROS), depolarization of the mitochondrial membrane potential (MMP), and altered mitochondrial dynamics were observed. Furthermore, we verified the therapeutic potential of rapamycin-induced mitochondrial dysfunction through co-treatment with temzolomide (TMZ), the current standard of care for glioblastoma. Together these results demonstrate that the mitochondria remain a promising target for therapeutic intervention against human glioblastoma and that TMZ and rapamycin have a synergistic effect in suppressing glioblastoma viability, enhancing ROS production, and depolarizing MMP.
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Affiliation(s)
- Mary A Zimmerman
- Department of Pharmaceutical Sciences, Biomanufacturing Research Institute Biotechnology Enterprise (BRITE), North Carolina Central University, 1801 Fayetteville St, Durham, NC, 27707, USA.,Department of Biology, University of Wisconsin-La Crosse, 1725 State St, La Crosse, WI, 54601, USA
| | - Samantha Wilkison
- Department of Pharmaceutical Sciences, Biomanufacturing Research Institute Biotechnology Enterprise (BRITE), North Carolina Central University, 1801 Fayetteville St, Durham, NC, 27707, USA.,Department of Pharmacology and Cancer Biology, Duke University, Durham, NC, 27708, USA
| | - Qi Qi
- Department of Pharmaceutical Sciences, Biomanufacturing Research Institute Biotechnology Enterprise (BRITE), North Carolina Central University, 1801 Fayetteville St, Durham, NC, 27707, USA.,Department of Neurology, Neuroscience Center, General Hospital of Ningxia Medical University, and Key Laboratory of Craniocerebral Diseases of Ningxia Hui Autonomous Region, Yinchuan 750004, China
| | - Guisheng Chen
- Department of Neurology, Neuroscience Center, General Hospital of Ningxia Medical University, and Key Laboratory of Craniocerebral Diseases of Ningxia Hui Autonomous Region, Yinchuan 750004, China
| | - P Andy Li
- Department of Pharmaceutical Sciences, Biomanufacturing Research Institute Biotechnology Enterprise (BRITE), North Carolina Central University, 1801 Fayetteville St, Durham, NC, 27707, USA
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223
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Yuan P, Yang T, Mu J, Zhao J, Yang Y, Yan Z, Hou Y, Chen C, Xing J, Zhang H, Li J. Circadian clock gene NPAS2 promotes reprogramming of glucose metabolism in hepatocellular carcinoma cells. Cancer Lett 2020; 469:498-509. [DOI: 10.1016/j.canlet.2019.11.024] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 11/12/2019] [Accepted: 11/18/2019] [Indexed: 02/07/2023]
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224
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Denisenko TV, Gorbunova AS, Zhivotovsky B. Mitochondrial Involvement in Migration, Invasion and Metastasis. Front Cell Dev Biol 2019; 7:355. [PMID: 31921862 PMCID: PMC6932960 DOI: 10.3389/fcell.2019.00355] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 12/05/2019] [Indexed: 12/21/2022] Open
Abstract
Mitochondria in addition to be a main cellular power station, are involved in the regulation of many physiological processes, such as generation of reactive oxygen species, metabolite production and the maintenance of the intracellular Ca2+ homeostasis. Almost 100 years ago Otto Warburg presented evidence for the role of mitochondria in the development of cancer. During the past 20 years mitochondrial involvement in programmed cell death regulation has been clarified. Moreover, it has been shown that mitochondria may act as a switchboard between various cell death modalities. Recently, accumulated data have pointed to the role of mitochondria in the metastatic dissemination of cancer cells. Here we summarize the modern knowledge concerning the contribution of mitochondria to the invasion and dissemination of tumor cells and the possible mechanisms behind that and attempts to target metastatic cancers involving mitochondria.
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Affiliation(s)
| | - Anna S Gorbunova
- Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russia
| | - Boris Zhivotovsky
- Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russia.,Institute of Environmental Medicine, Division of Toxicology, Karolinska Institute, Stockholm, Sweden
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225
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Shao J, Li M, Guo Z, Jin C, Zhang F, Ou C, Xie Y, Tan S, Wang Z, Zheng S, Wang X. TPP-related mitochondrial targeting copper (II) complex induces p53-dependent apoptosis in hepatoma cells through ROS-mediated activation of Drp1. Cell Commun Signal 2019; 17:149. [PMID: 31744518 PMCID: PMC6862763 DOI: 10.1186/s12964-019-0468-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 10/22/2019] [Indexed: 12/19/2022] Open
Abstract
Background In recent years, copper complexes have gradually become the focus of potential anticancer drugs due to their available redox properties and low toxicity. In this study, a novel mitochondrion-targeting copper (II) complex, [Cu (ttpy-tpp)Br2] Br (simplified as CTB), is first synthesized by our group. CTB with tri-phenyl-phosphine (TPP), a targeting and lipophilic group, can cross the cytoplasmic and mitochondrial membranes of tumor cells. The present study aims to investigate how CTB affects mitochondrial functions and exerts its anti-tumor activity in hepatoma cells. Methods Multiple molecular experiments including Flow cytometry, Western blot, Immunofluorescence, Tracker staining, Transmission Electron Microscopy and Molecular docking simulation were used to elucidate the underlying mechanisms. Human hepatoma cells were subcutaneously injected into right armpit of male nude mice for evaluating the effects of CTB in vivo. Results CTB induced apoptosis via collapse of mitochondrial membrane potential (MMP), ROS production, Bax mitochondrial aggregation as well as cytochrome c release, indicating that CTB-induced apoptosis was associated with mitochondrial pathway in human hepatoma cells. Mechanistic study revealed that ROS-related mitochondrial translocation of p53 was involved in CTB-mediated apoptosis. Simultaneously, elevated mitochondrial Drp1 levels were also observed, and interruption of Drp1 activation played critical role in p53-dependent apoptosis. CTB also strongly suppressed the growth of liver cancer xenografts in vivo. Conclusion In human hepatoma cells, CTB primarily induces mitochondrial dysfunction and promotes accumulation of ROS, leading to activation of Drp1. These stimulation signals accelerate mitochondrial accumulation of p53 and lead to the eventual apoptosis. Our research shows that CTB merits further evaluation as a chemotherapeutic agent for the treatment of Hepatocellular carcinoma (HCC).
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Affiliation(s)
- Jiangjuan Shao
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China.,State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Mengmeng Li
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China.,Department of Pharmaceutical Technology, Xuzhou Pharmaceutical Vocational College, Xuzhou, 221116, China
| | - Zijian Guo
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Chun Jin
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Feng Zhang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Chunyan Ou
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Yaochen Xie
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Shanzhong Tan
- The Nanjing Hospital Affiliated to Nanjing University of Chinese Medicine, Nanjing, 210003, China
| | - Zhenyi Wang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Shizhong Zheng
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
| | - Xiaoyong Wang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China.
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226
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Mitochondrial Dysfunction in Aging and Cancer. J Clin Med 2019; 8:jcm8111983. [PMID: 31731601 PMCID: PMC6912717 DOI: 10.3390/jcm8111983] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 11/01/2019] [Accepted: 11/13/2019] [Indexed: 12/14/2022] Open
Abstract
Aging is a major risk factor for developing cancer, suggesting that these two events may represent two sides of the same coin. It is becoming clear that some mechanisms involved in the aging process are shared with tumorigenesis, through convergent or divergent pathways. Increasing evidence supports a role for mitochondrial dysfunction in promoting aging and in supporting tumorigenesis and cancer progression to a metastatic phenotype. Here, a summary of the current knowledge of three aspects of mitochondrial biology that link mitochondria to aging and cancer is presented. In particular, the focus is on mutations and changes in content of the mitochondrial genome, activation of mitochondria-to-nucleus signaling and the newly discovered mitochondria-telomere communication.
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227
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Zhao L, Chen X, Feng Y, Wang G, Nawaz I, Hu L, Liu P. COX7A1 suppresses the viability of human non-small cell lung cancer cells via regulating autophagy. Cancer Med 2019; 8:7762-7773. [PMID: 31663688 PMCID: PMC6912042 DOI: 10.1002/cam4.2659] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 10/02/2019] [Accepted: 10/15/2019] [Indexed: 12/12/2022] Open
Abstract
COX7A1 is a subunit of cytochrome c oxidase, and plays an important role in the super‐assembly that integrates peripherally into multi‐unit heteromeric complexes in the mitochondrial respiratory chain. In recent years, some researchers have identified that COX7A1 is implicated in human cancer cell metabolism and therapy. In this study, we mainly explored the effect of COX7A1 on the cell viability of lung cancer cells. COX7A1 overexpression was induced by vector transfection in NCI‐H838 cells. Cell proliferation, colony formation and cell apoptosis were evaluated in different groups. In addition, autophagy was analyzed by detecting the expression level of p62 and LC3, as well as the tandem mRFP‐GFP‐LC3 reporter assay respectively. Our results indicated that the overexpression of COX7A1 suppressed cell proliferation and colony formation ability, and promoted cell apoptosis in human non‐small cell lung cancer cells. Besides, the overexpression of COX7A1 blocked autophagic flux and resulted in the accumulation of autophagosome via downregulation of PGC‐1α and upregulation of NOX2. Further analysis showed that the effect of COX7A1 overexpression on cell viability was partly dependent of the inhibition of autophagy. Herein, we identified that COX7A1 holds a key position in regulating the development and progression of lung cancer by affecting autophagy. Although the crosstalk among COX7A1, PGC‐1α and NOX2 needs further investigation, our study provides a novel insight into the therapeutic action of COX7A1 against human non‐small cell lung cancer.
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Affiliation(s)
- Lei Zhao
- Department of Anesthesiology, The 2nd Clinical Medical College (Shenzhen People's Hospital) of Jinan University, The 1st Affiliated Hospitals of Southern University of Science and Technology, Shenzhen, China.,Integrated Chinese and Western Medicine Postdoctoral Research Station, Jinan University, Guangzhou, China
| | - Xin Chen
- Department of Laboratory Medicine, The 2nd Clinical Medicine College (Shenzhen People's Hospital) of Jinan University, The 1st Affiliated Hospitals of Southern University of Science and Technology, Shenzhen, China
| | - Yetong Feng
- Department of Medicine, College of Medicine, University of Arizona, Tucson, AZ, USA
| | - Guangsuo Wang
- Department of Thoracic Surgery, The 2nd Clinical Medicine College (Shenzhen People's Hospital) of Jinan University, The 1st Affiliated Hospitals of Southern University of Science and Technology, Shenzhen, China
| | - Imran Nawaz
- Department of Thoracic Surgery, The 2nd Clinical Medicine College (Shenzhen People's Hospital) of Jinan University, The 1st Affiliated Hospitals of Southern University of Science and Technology, Shenzhen, China.,Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Lifu Hu
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Pengfei Liu
- Department of Anesthesiology, The 2nd Clinical Medical College (Shenzhen People's Hospital) of Jinan University, The 1st Affiliated Hospitals of Southern University of Science and Technology, Shenzhen, China.,Integrated Chinese and Western Medicine Postdoctoral Research Station, Jinan University, Guangzhou, China
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228
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Guha M, Srinivasan S, Sheehan MM, Kijima T, Ruthel G, Whelan K, Tanaka K, Klein-Szanto A, Chandramouleeswaran PM, Nakagawa H, Avadhani NG. Esophageal 3D organoids of MPV17-/- mouse model of mitochondrial DNA depletion show epithelial cell plasticity and telomere attrition. Oncotarget 2019; 10:6245-6259. [PMID: 31692873 PMCID: PMC6817447 DOI: 10.18632/oncotarget.27264] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 10/04/2019] [Indexed: 02/07/2023] Open
Abstract
Esophageal squamous cell carcinoma (ESCC) is an aggressive cancer with late-stage detection and poor prognosis. This emphasizes the need to identify new markers for early diagnosis and treatment. Altered mitochondrial genome (mtDNA) content in primary tumors correlates with poor patient prognosis. Here we used three-dimensional (3D) organoids of esophageal epithelial cells (EECs) from the MPV17-/- mouse model of mtDNA depletion to investigate the contribution of reduced mtDNA content in ESCC oncogenicity. To test if mtDNA defects are a contributing factor in ESCC, we used oncogenic stimuli such as ESCC carcinogen 4-nitroquinoline oxide (4-NQO) treatment, or expressing p53R175H oncogenic driver mutation. We observed that EECs and 3D-organoids with mtDNA depletion had cellular, morphological and genetic alterations typical of an oncogenic transition. Furthermore, mitochondrial dysfunction induced cellular transformation is accompanied by elevated mitochondrial fission protein, DRP1 and pharmacologic inhibition of mitochondrial fission by mDivi-1 in the MPV17-/- organoids reversed the phenotype to that of normal EEC organoids. Our studies show that mtDNA copy number depletion, activates a mitochondrial retrograde response, potentiates telomere defects, and increases the oncogenic susceptibility towards ESCC. Furthermore, mtDNA depletion driven cellular plasticity is mediated via altered mitochondrial fission-fusion dynamics.
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Affiliation(s)
- Manti Guha
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY, USA
| | - Satish Srinivasan
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Maura M. Sheehan
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Takashi Kijima
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY, USA
| | - Gordon Ruthel
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Kelly Whelan
- Division of Gastroenterology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Koji Tanaka
- Division of Gastroenterology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Andres Klein-Szanto
- Histopathology Facility, Fox Chase Cancer Center, Temple University, Philadelphia, PA, USA
| | - Prasanna M. Chandramouleeswaran
- Division of Gastroenterology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Hiroshi Nakagawa
- Division of Gastroenterology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY, USA
| | - Narayan G. Avadhani
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
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229
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Mirzapoiazova T, Li H, Nathan A, Srivstava S, Nasser MW, Lennon F, Armstrong B, Mambetsariev I, Chu PG, Achuthan S, Batra SK, Kulkarni P, Salgia R. Monitoring and Determining Mitochondrial Network Parameters in Live Lung Cancer Cells. J Clin Med 2019; 8:jcm8101723. [PMID: 31635288 PMCID: PMC6832496 DOI: 10.3390/jcm8101723] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/10/2019] [Accepted: 10/16/2019] [Indexed: 02/06/2023] Open
Abstract
Mitochondria are dynamic organelles that constantly fuse and divide, forming dynamic tubular networks. Abnormalities in mitochondrial dynamics and morphology are linked to diverse pathological states, including cancer. Thus, alterations in mitochondrial parameters could indicate early events of disease manifestation or progression. However, finding reliable and quantitative tools for monitoring mitochondria and determining the network parameters, particularly in live cells, has proven challenging. Here, we present a 2D confocal imaging-based approach that combines automatic mitochondrial morphology and dynamics analysis with fractal analysis in live small cell lung cancer (SCLC) cells. We chose SCLC cells as a test case since they typically have very little cytoplasm, but an abundance of smaller mitochondria compared to many of the commonly used cell types. The 2D confocal images provide a robust approach to quantitatively measure mitochondrial dynamics and morphology in live cells. Furthermore, we performed 3D reconstruction of electron microscopic images and show that the 3D reconstruction of the electron microscopic images complements this approach to yield better resolution. The data also suggest that the parameters of mitochondrial dynamics and fractal dimensions are sensitive indicators of cellular response to subtle perturbations, and hence, may serve as potential markers of drug response in lung cancer.
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Affiliation(s)
- Tamara Mirzapoiazova
- Department of Medical Oncology and Therapeutics Research, City of Hope National Medical Center, Duarte, CA 91010, USA.
| | - Haiqing Li
- Center for Informatics, City of Hope National Medical Center, Duarte, CA 91010, USA.
- Department of Computational & Quantitative Medicine, Beckman Research Institute, City of Hope Medical Center, Duarte, CA 91010, USA.
| | - Anusha Nathan
- Department of Medical Oncology and Therapeutics Research, City of Hope National Medical Center, Duarte, CA 91010, USA.
| | - Saumya Srivstava
- Department of Medical Oncology and Therapeutics Research, City of Hope National Medical Center, Duarte, CA 91010, USA.
| | - Mohd W Nasser
- University of Nebraska, Medical Center, Nebraska, NE 68198, USA.
| | | | - Brian Armstrong
- Department of Developmental and Stem Cell Biology, City of Hope National Medical Center, Duarte, CA 91010, USA.
| | - Isa Mambetsariev
- Department of Medical Oncology and Therapeutics Research, City of Hope National Medical Center, Duarte, CA 91010, USA.
| | - Peiguo G Chu
- Department of Anatomic Pathology, City of Hope National Medical Center, Duarte, CA 91010, USA.
| | - Srisairam Achuthan
- Center for Informatics, City of Hope National Medical Center, Duarte, CA 91010, USA.
| | - Surinder K Batra
- University of Nebraska, Medical Center, Nebraska, NE 68198, USA.
| | - Prakash Kulkarni
- Department of Medical Oncology and Therapeutics Research, City of Hope National Medical Center, Duarte, CA 91010, USA.
| | - Ravi Salgia
- Department of Medical Oncology and Therapeutics Research, City of Hope National Medical Center, Duarte, CA 91010, USA.
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230
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Yang K, Niu L, Bai Y, Le W. Glioblastoma: Targeting the autophagy in tumorigenesis. Brain Res Bull 2019; 153:334-340. [PMID: 31580908 DOI: 10.1016/j.brainresbull.2019.09.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Accepted: 09/26/2019] [Indexed: 12/15/2022]
Abstract
Glioblastoma (GBM) is one of the most malignant and aggressive primary brain tumor, with a mean life expectancy of less than 15 months. The malignant nature of GBM prompts the need for further research on its tumorigenesis and novel treatments to improve its outcome. One of the promising research targets is autophagy, a fundamental metabolic process of degrading and recycling cellular components. Interventions to activate or inhibit autophagy have both been proposed as GBM therapies, suggesting a controversial, context-dependent role of autophagy in GBM tumorigenesis. In this review, we highlight the molecular links between GBM and autophagy with the focus on the effects of autophagy on the stemness maintenance, metabolism and proteostasis in GBM tumorigenesis. Understanding the molecular pathways involved in autophagy target is critical for GBM therapy.
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Affiliation(s)
- Kang Yang
- Department of Neurosurgery, The 2nd Hospital of Dalian Medical University, Dalian, PR China
| | - Long Niu
- Liaoning Provincial Center for Clinical Research on Neurological Diseases, The 1st Hospital of Dalian Medical University, Dalian, PR China; Liaoning Provincial Key Laboratory for Research on Pathogenic Mechanisms of Neurological Diseases, The 1st Hospital of Dalian Medical University, Dalian, PR China
| | - Yijing Bai
- Liaoning Provincial Center for Clinical Research on Neurological Diseases, The 1st Hospital of Dalian Medical University, Dalian, PR China; Liaoning Provincial Key Laboratory for Research on Pathogenic Mechanisms of Neurological Diseases, The 1st Hospital of Dalian Medical University, Dalian, PR China
| | - Weidong Le
- Liaoning Provincial Center for Clinical Research on Neurological Diseases, The 1st Hospital of Dalian Medical University, Dalian, PR China; Liaoning Provincial Key Laboratory for Research on Pathogenic Mechanisms of Neurological Diseases, The 1st Hospital of Dalian Medical University, Dalian, PR China.
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231
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Mitochondria Lysine Acetylation and Phenotypic Control. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1158:59-70. [PMID: 31452135 DOI: 10.1007/978-981-13-8367-0_4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Mitochondria have a central role in cellular metabolism and reversible post-translational modifications regulate activity of mitochondrial proteins. Thanks to advances in proteomics, lysine acetylation has arisen as an important post-translational modification in the mitochondrion. During acetylation an acetyl group is covalently attached to the epsilon amino group in the side chain of lysine residues using acetyl-CoA as the substrate donor. Therefore the positive charge is neutralized, and this can affect the function of proteins thereby regulating enzyme activity, protein interactions, and protein stability. The major deacetylase in mitochondria is SIRT3 whose activity regulates many mitochondrial enzymes. The method of choice for the analysis of acetylated proteins foresees the combination of mass spectrometry-based proteomics with affinity enrichment techniques. Beyond the identification of lysine-acetylated proteins, many studies are moving towards the characterization of acetylated patterns in different diseases. Indeed, modifications in lysine acetylation status can directly alter mitochondrial function and, therefore, be linked to human diseases such as metabolic diseases, cancer, myocardial injury and neurodegenerative diseases. Despite the progress in the characterization of different lysine acetylation sites, additional studies are needed to differentiate the specific changes with a significant biological relevance.
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232
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Human Ovarian Cancer Tissue Exhibits Increase of Mitochondrial Biogenesis and Cristae Remodeling. Cancers (Basel) 2019; 11:cancers11091350. [PMID: 31547300 PMCID: PMC6770021 DOI: 10.3390/cancers11091350] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 08/28/2019] [Accepted: 09/04/2019] [Indexed: 12/12/2022] Open
Abstract
Ovarian cancer (OC) is the most lethal gynecologic cancer characterized by an elevated apoptosis resistance that, potentially, leads to chemo-resistance in the recurrent disease. Mitochondrial oxidative phosphorylation was found altered in OC, and mitochondria were proposed as a target for therapy. Molecular evidence suggests that the deregulation of mitochondrial biogenesis, morphology, dynamics, and apoptosis is involved in carcinogenesis. However, these mitochondrial processes remain to be investigated in OC. Eighteen controls and 16 OC tissues (serous and mucinous) were collected. Enzymatic activities were performed spectrophotometrically, mitochondrial DNA (mtDNA) content was measured by real-time-PCR, protein levels were determined by Western blotting, and mitochondrial number and structure were measured by electron microscopy. Statistical analysis was performed using Student’s t-test, Mann-Whitney U test, and principal component analysis (PCA). We found, in OC, that increased mitochondrial number associated with increased peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC1α) and mitochondrial transcription factor A (TFAM) protein levels, as well as mtDNA content. The OC mitochondria presented an increased maximum length, as well as reduced cristae width and junction diameter, associated with increased optic atrophy 1 protein (OPA1) and prohibitin 2 (PHB2) protein levels. In addition, in OC tissues, augmented cAMP and sirtuin 3 (SIRT3) protein levels were observed. PCA of the 25 analyzed biochemical parameters classified OC patients in a distinct group from controls. We highlight a “mitochondrial signature” in OC that could result from cooperation of the cAMP pathway with the SIRT3, OPA1, and PHB2 proteins.
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233
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Moscheni C, Malucelli E, Castiglioni S, Procopio A, De Palma C, Sorrentino A, Sartori P, Locatelli L, Pereiro E, Maier JA, Iotti S. 3D Quantitative and Ultrastructural Analysis of Mitochondria in a Model of Doxorubicin Sensitive and Resistant Human Colon Carcinoma Cells. Cancers (Basel) 2019; 11:cancers11091254. [PMID: 31461915 PMCID: PMC6769783 DOI: 10.3390/cancers11091254] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 08/23/2019] [Accepted: 08/23/2019] [Indexed: 12/27/2022] Open
Abstract
Drug resistance remains a major obstacle in cancer treatment. Because mitochondria mediate metabolic reprogramming in cancer drug resistance, we focused on these organelles in doxorubicin sensitive and resistant colon carcinoma cells. We employed soft X-ray cryo nano-tomography to map three-dimensionally these cells at nanometer-resolution and investigate the correlation between mitochondrial morphology and drug resistance phenotype. We have identified significant structural differences in the morphology of mitochondria in the two strains of cancer cells, as well as lower amounts of Reactive oxygen species (ROS) in resistant than in sensitive cells. We speculate that these features could elicit an impaired mitochondrial communication in resistant cells, thus preventing the formation of the interconnected mitochondrial network as clearly detected in the sensitive cells. In fact, the qualitative and quantitative three-dimensional assessment of the mitochondrial morphology highlights a different structural organization in resistant cells, which reflects a metabolic cellular adaptation functional to survive to the offense exerted by the antineoplastic treatment.
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Affiliation(s)
- Claudia Moscheni
- Department of Biomedical and Clinical Sciences "Luigi Sacco", Università degli Studi di Milano, 20157 Milano, Italy
| | - Emil Malucelli
- Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy
| | - Sara Castiglioni
- Department of Biomedical and Clinical Sciences "Luigi Sacco", Università degli Studi di Milano, 20157 Milano, Italy.
| | - Alessandra Procopio
- Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy
| | - Clara De Palma
- Department of Biomedical and Clinical Sciences "Luigi Sacco", Università degli Studi di Milano, 20157 Milano, Italy
- Unit of Clinical Pharmacology, "Luigi Sacco" University Hospital, ASST Fatebenefratelli Sacco, 20157 Milan, Italy
| | - Andrea Sorrentino
- ALBA Synchrotron Light Facility, Carrer de la Llum 2-26, 08290 Cerdanyola del Vallès, Spain
| | - Patrizia Sartori
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, 20133 Milan, Italy
| | - Laura Locatelli
- Department of Biomedical and Clinical Sciences "Luigi Sacco", Università degli Studi di Milano, 20157 Milano, Italy
| | - Eva Pereiro
- ALBA Synchrotron Light Facility, Carrer de la Llum 2-26, 08290 Cerdanyola del Vallès, Spain
| | - Jeanette A Maier
- Department of Biomedical and Clinical Sciences "Luigi Sacco", Università degli Studi di Milano, 20157 Milano, Italy
| | - Stefano Iotti
- Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy
- National Institute of Biostructures and Biosystems, 00136 Roma, Italy
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234
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Cocetta V, Ragazzi E, Montopoli M. Mitochondrial Involvement in Cisplatin Resistance. Int J Mol Sci 2019; 20:ijms20143384. [PMID: 31295873 PMCID: PMC6678541 DOI: 10.3390/ijms20143384] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 07/03/2019] [Accepted: 07/08/2019] [Indexed: 12/25/2022] Open
Abstract
Cisplatin is one of the worldwide anticancer drugs and, despite its toxicity and frequent recurrence of resistance phenomena, it still remains the only therapeutic option for several tumors. Circumventing cisplatin resistance remains, therefore, a major goal for clinical therapy and represents a challenge for scientific research. Recent studies have brought to light the fundamental role of mitochondria in onset, progression, and metastasis of cancer, as well as its importance in the resistance to chemotherapy. The aim of this review is to give an overview of the current knowledge about the implication of mitochondria in cisplatin resistance and on the recent development in this research field. Recent studies have highlighted the role of mitochondrial DNA alterations in onset of resistance phenomena, being related both to redox balance alterations and to signal crosstalk with the nucleus, allowing a rewiring of cell metabolism. Moreover, an important role of the mitochondrial dynamics in the adaptation mechanism of cancer cells to challenging environment has been revealed. Giving bioenergetic plasticity to tumor cells, mitochondria allow cells to evade death pathways in stressful conditions, including chemotherapy. So far, even if the central role of mitochondria is recognized, little is known about the specific mechanisms implicated in the resistance. Nevertheless, mitochondria appear to be promising pharmacological targets for overcoming cisplatin resistance, but further studies are necessary.
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Affiliation(s)
- Veronica Cocetta
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Largo Egidio Meneghetti 2, 35131 Padua, Italy
| | - Eugenio Ragazzi
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Largo Egidio Meneghetti 2, 35131 Padua, Italy
| | - Monica Montopoli
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Largo Egidio Meneghetti 2, 35131 Padua, Italy.
- Venetian Institute of Molecular Medicine (VIMM), Via Orus 2, 35129 Padua, Italy.
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235
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Affiliation(s)
- David Pla-Martin
- Center for Physiology and Pathophysiology, Institute of Vegetative Physiology, University of Köln, Köln, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-associated Diseases (CECAD), University of Köln, Köln, Germany
| | - Rudolf J Wiesner
- Center for Physiology and Pathophysiology, Institute of Vegetative Physiology, University of Köln, Köln, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-associated Diseases (CECAD), University of Köln, Köln, Germany
- Center for Molecular Medicine Cologne, University of Köln, Köln, Germany
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236
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Zheng A, Zhang L, Song X, Wang Y, Wei M, Jin F. Clinical implications of a novel prognostic factor AIFM3 in breast cancer patients. BMC Cancer 2019; 19:451. [PMID: 31088422 PMCID: PMC6518782 DOI: 10.1186/s12885-019-5659-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 04/30/2019] [Indexed: 12/21/2022] Open
Abstract
Background In a time of increasing concerns over personalized and precision treatment in breast cancer (BC), filtering prognostic factors attracts more attention. Apoptosis-Inducing Factor Mitochondrion-associated 3 (AIFM3) is widely expressed in various tissues and aberrantly expressed in several cancers. However, clinical implication of AIFM3 has not been reported in BC. The aim of the study is to investigate the crystal structure, clinical and prognostic implications of AIFM3 in BC. Methods AIFM3 expression in 151 BC samples were assessed by immunohistochemistry (IHC). The Cancer Genome Atlas (TCGA) and Kaplan-Meier survival analysis were used to demonstrate expression and survival of AIFM3 signature. Gene Set Enrichment Analysis (GSEA) was performed to investigate the mechanisms related to AIFM3 expression in BC. Results AIFM3 was significantly more expressed in breast cancer tissues than in normal tissues. AIFM3 expression had a significant association with tumor size, lymph node metastasis, TNM stage and molecular typing. Higher AIFM3 expression was related to a shorter overall survival (OS) and disease-free survival (DFS). Lymph node metastasis and TNM stage were independent factors of AIFM3 expression. The study presented the crystal structure of AIFM3 successfully and predicted several binding sites when AIFM3 bonded to PTPN12 by Molecular Operating Environment software (MOE). Conclusions AIFM3 might be a potential biomarker for predicting prognosis in BC, adding to growing evidence that AIFM3 might interact with PTPN12. Electronic supplementary material The online version of this article (10.1186/s12885-019-5659-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ang Zheng
- Department of Breast Surgery, the First Affiliated Hospital of China Medical University, 110001, No.155 Nanjing Road, Heping Districrt, Shenyang, Liaoning Province, People's Republic of China
| | - Lin Zhang
- Department of Surgery, Huamei Hospital, University of Chinese Academy of Sciences (Ningbo No.2 Hospital), 315000, No.41 Xibei Road, Haishu District, NingBo, Zhejiang Province, People's Republic of China
| | - Xinyue Song
- Department of Pharmacology, School of Pharmacy, China Medical University, 110122, No.77 Puhe Road, Shenbei New District, Shenyang, Liaoning Province, People's Republic of China.,Liaoning Key Laboratory of molecular targeted anti-tumor drug development and evaluation, China Medical University, No.77 Puhe Road, Shenbei New District, Shenyang, 110122, Liaoning Province, People's Republic of China
| | - Yuying Wang
- Department of Breast Surgery, the First Affiliated Hospital of China Medical University, 110001, No.155 Nanjing Road, Heping Districrt, Shenyang, Liaoning Province, People's Republic of China.,Department of Breast Surgery, Liaoning Cancer Hospital and Institute, Cancer Hospital of China Medical University, 110042, No.44 Xiaoheyan Road, Dadong District, Shenyang, Liaoning Province, People's Republic of China
| | - Minjie Wei
- Department of Pharmacology, School of Pharmacy, China Medical University, 110122, No.77 Puhe Road, Shenbei New District, Shenyang, Liaoning Province, People's Republic of China.,Liaoning Key Laboratory of molecular targeted anti-tumor drug development and evaluation, China Medical University, No.77 Puhe Road, Shenbei New District, Shenyang, 110122, Liaoning Province, People's Republic of China
| | - Feng Jin
- Department of Breast Surgery, the First Affiliated Hospital of China Medical University, 110001, No.155 Nanjing Road, Heping Districrt, Shenyang, Liaoning Province, People's Republic of China.
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237
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Soares CD, de Lima Morais TM, Mariano FV, Altemani A, Corrêa MB, Reis RRDD, Amorim LS, Ferreira SMS, de Almeida OP, Carlos R, Jorge J. Expression of mitochondrial dynamics markers during melanoma progression: Comparative study of head and neck cutaneous and mucosal melanomas. J Oral Pathol Med 2019; 48:373-381. [PMID: 30916813 DOI: 10.1111/jop.12855] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 02/25/2019] [Accepted: 03/11/2019] [Indexed: 12/29/2022]
Abstract
BACKGROUND Head and neck mucosal melanomas (MMs) are rare tumors with adverse outcomes and poorer prognoses than their more common cutaneous counterparts (cutaneous melanomas-CMs). Few studies have compared the expression of mitochondrial dynamic markers in these tumors. This study aimed to assess the correlations of mitochondrial markers with melanoma progression and their potential as predictors of lymph node involvement and distant metastasis. METHODS Immunohistochemistry against anti-mitochondrial (AMT), dynamin-related protein 1 (DRP1), mitochondrial fission protein 1 (FIS1), mitofusin-1 (MFN1), and mitofusin-2 (MFN2) antibodies was performed in 112 cases of head and neck CM and MM. A Cox regression multivariate model was used to assess the correlation of AMT, FIS1, and MFN2 expressions considering the risk for nodal and distant metastasis. RESULTS All markers studied presented higher staining in tumor cells than normal adjacent tissues. Higher mitochondrial content was observed in MM than in CM, and it was significantly associated with nodal metastasis in oral melanomas. Both FIS1 and DRP1 expressions were related to advanced Clark's levels in CM, and they were overexpressed in oral melanomas. Moreover, increased immunoexpression of MFN2 was significantly associated with a higher risk of metastasis in CM, and it was also overexpressed in sinonasal melanomas. CONCLUSIONS Our results suggest that mitochondrial fission and fusion processes can play an important role during multiple stages of tumorigenesis and the development of nodal and distant metastasis in cutaneous and mucosal melanomas.
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Affiliation(s)
- Ciro Dantas Soares
- Department of Oral Diagnosis, Area of Pathology, Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil
| | - Thayná Melo de Lima Morais
- Department of Oral Diagnosis, Area of Pathology, Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil
| | - Fernanda Viviane Mariano
- Department of Oral Diagnosis, Area of Pathology, Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil.,Department of Pathology, Faculty of Medical Sciences, University of Campinas, Campinas, São Paulo, Brazil
| | - Albina Altemani
- Department of Oral Diagnosis, Area of Pathology, Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil.,Department of Pathology, Faculty of Medical Sciences, University of Campinas, Campinas, São Paulo, Brazil
| | - Marcelo Brum Corrêa
- Head and Neck Surgery Department, Oncology Center (CEON), Fornecedores de Cana Hospital, Piracicaba, São Paulo, Brazil
| | | | | | - Sonia Maria Soares Ferreira
- Infectious and Parasitic Diseases Unit, University Hospital of the Federal University of Alagoas, Maceió, Alagoas, Brazil.,Program of Research in Health, Centro Universitário Cesmac, Maceió, Alagoas, Brazil
| | - Oslei Paes de Almeida
- Department of Oral Diagnosis, Area of Pathology, Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil
| | - Roman Carlos
- Pathology Division, Centro Clínico de Cabeza y Cuello/Hospital Herrera Llerandi, Guatemala City, Guatemala
| | - Jacks Jorge
- Department of Oral Diagnosis, Area of Pathology, Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil
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238
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Liu AG, Xu KL, Wang WL, Zhou BK, Guo QG. Down-regulation of MRPS23 inhibits LPS-induced proliferation and invasion via regulation of the NF-κB signaling pathway in osteosarcoma cells. RSC Adv 2019; 9:10561-10568. [PMID: 35515333 PMCID: PMC9062464 DOI: 10.1039/c8ra08973f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 03/28/2019] [Indexed: 11/21/2022] Open
Abstract
Mitochondrial ribosomal protein S23 (MRPS23), encoded by a nuclear gene, is a participant in the translation of mitochondrial proteins. Recently, MRPS23 has been reported to be overexpressed in many types of cancers and have a close association with cancer progression. However, the specific roles of MRPS23 in osteosarcoma (OS) remain unknown. In this study, we investigated the expression pattern and biological functions of MRPS23 in OS cells. Our results demonstrated that MRPS23 was up-regulated in OS tissues and cell lines. Down-regulation of MRPS23 significantly inhibited OS cell proliferation and invasion induced by lipopolysaccharide (LPS) in vitro. Furthermore, the in vivo experiments showed that MRPS23 down-regulation markedly suppressed OS cell growth and metastasis induced by LPS. Mechanistically, down-regulation of MRPS23 inhibited the activity of NF-κB signaling pathway in OS cells. In conclusion, these findings indicated that MRPS23 may be a potential therapeutic target for OS treatment. Mitochondrial ribosomal protein S23 (MRPS23), encoded by a nuclear gene, is a participant in the translation of mitochondrial proteins.![]()
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Affiliation(s)
- Ai-Guo Liu
- Department of Orthopaedics, The First Affiliated Hospital of Henan University Kaifeng 475000 China
| | - Ke-Lin Xu
- Department of Orthopaedics and Traumatology, Wuxi Hospital Affiliated to Nanjing University of Chinese Medicine No. 8 Zhongnan West Road Wuxi 214000 China +86-510-88859999 +86-510-88859999
| | - Wei-Lin Wang
- Department of Orthopaedics, The First Affiliated Hospital of Henan University Kaifeng 475000 China
| | - Bing-Kang Zhou
- Department of Orthopaedics, The First Affiliated Hospital of Henan University Kaifeng 475000 China
| | - Qing-Gong Guo
- Department of Orthopaedics, The First Affiliated Hospital of Henan University Kaifeng 475000 China
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239
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Hou Y, Lan C, Kong Y, Zhu C, Peng W, Huang Z, Zhang C. Genetic ablation of TAZ induces HepG2 liver cancer cell apoptosis through activating the CaMKII/MIEF1 signaling pathway. Onco Targets Ther 2019; 12:1765-1779. [PMID: 30881030 PMCID: PMC6402445 DOI: 10.2147/ott.s196142] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Background and objective Transcriptional coactivator with PDZ-binding motif (TAZ) has been found to be associated with tumor progression. Mitochondrial homeostasis regulates cancer cell viability and metastasis. However, the roles of TAZ and mitochondrial homeostasis in liver cancer viability have not been explored. The aim of our study was to investigate the influence of TAZ on HepG2 liver cancer cell apoptosis. Materials and methods HepG2 liver cancer cell was used in the present study, and shRNA against TAZ was transfected into HepG2 cell to knockdown TAZ expression. Mitochondrial function was analyzed using Western blotting, immunofluorescence assay, and flow cytometry. Pathway blocker was used to confirm the role of CaMKII pathway in TAZ-mediated cancer cell death. Results Our results indicated that TAZ deletion induced death in HepG2 cell via apoptosis. Biological analysis demonstrated that mitochondrial stress, including mitochondrial bioenergetics disorder, mitochondrial oxidative stress, and mitochondrial apoptosis, were activated by TAZ deletion. Furthermore, we found that TAZ affected mitochondrial stress by triggering mitochondrial elongation factor 1 (MIEF1)-related mitochondrial dysfunction. The loss of MIEF1 sustained mitochondrial function and promoted cancer cell survival. Molecular investigation illustrated that TAZ regulated MIEF1 expression via the CaMKII signaling pathway. Blockade of the CaMKII pathway prevented TAZ-mediated MIEF1 upregulation and improved cancer cell survival. Conclusion Taken together, our results highlight the key role of TAZ as a master regulator of HepG2 liver cancer cell viability via the modulation of MIEF1-related mitochondrial stress and the CaMKII signaling pathway. These findings define TAZ and MIEF1-related mitochondrial dysfunction as tumor suppressors that act by promoting cancer apoptosis via the CaMKII signaling pathway, with potential implications for new approaches to liver cancer therapy.
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Affiliation(s)
- Yi Hou
- Department of Rehabilitation, Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China,
| | - Chunna Lan
- Department of Rehabilitation, Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China,
| | - Ying Kong
- Department of Rehabilitation, Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China,
| | - Chunjiao Zhu
- Department of Rehabilitation, Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China,
| | - Wenna Peng
- Department of Rehabilitation, Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China,
| | - Zhichao Huang
- Department of Rehabilitation, Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China,
| | - Changjie Zhang
- Department of Rehabilitation, Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China,
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240
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Zhang L, Lu P, Yan L, Yang L, Wang Y, Chen J, Dai J, Li Y, Kang Z, Bai T, Xi Y, Xu J, Sun G, Yang T. MRPL35 Is Up-Regulated in Colorectal Cancer and Regulates Colorectal Cancer Cell Growth and Apoptosis. THE AMERICAN JOURNAL OF PATHOLOGY 2019; 189:1105-1120. [PMID: 30862482 DOI: 10.1016/j.ajpath.2019.02.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Revised: 01/28/2019] [Accepted: 02/05/2019] [Indexed: 02/07/2023]
Abstract
Mitochondrial ribosome proteins (MRPs), which are encoded by the nuclear genomic DNA, are important for mitochondrial-encoded protein synthesis and mitochondrial function. Emerging evidence suggests that several MRPs also exhibit important extra-mitochondrial functions, such as involvement in apoptosis, protein biosynthesis, and signal transduction. In this study, we demonstrate a significant role of MRP L35 (MRPL35) in colorectal cancer (CRC). The expression of MRPL35 was higher in CRC tissues than in matched cancer-adjacent tissues and higher in CRC cells than in normal mucosal epithelial cells. Higher MRPL35 expression in CRC tissue correlated with shorter overall survival for CRC patients. In vitro, down-regulation of MRPL35 led to increased production of reactive oxygen species (ROS) together with DNA damage, loss of cell proliferation, G2/M arrest, a decrease in mitochondrial membrane potential, apoptosis, and autophagy induction. MRPL35 knockdown inhibited tumor proliferation in a CRC xenograft nude mouse model. Furthermore, overexpression of MRPL35 or treatment of cells with the ROS scavenger, N-acetyl cysteine, abrogated ROS production, cell cycle arrest, and apoptosis in vitro. These findings suggest that MRPL35 plays an essential role in the development of CRC and may be a potential therapeutic target for CRC.
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Affiliation(s)
- Litao Zhang
- Department of Biochemistry & Molecular Biology, Shanxi Medical University, Taiyuan, China
| | - Peifen Lu
- Department of Biochemistry & Molecular Biology, Shanxi Medical University, Taiyuan, China
| | - Lihong Yan
- Department of Biochemistry & Molecular Biology, Shanxi Medical University, Taiyuan, China
| | - Lijun Yang
- Department of Pharmacology, Shanxi Medical University, Taiyuan, China
| | - Yutao Wang
- Department of Biochemistry & Molecular Biology, Shanxi Medical University, Taiyuan, China
| | - Junjun Chen
- Department of Biochemistry & Molecular Biology, Shanxi Medical University, Taiyuan, China
| | - Jie Dai
- Department of Biochemistry & Molecular Biology, Shanxi Medical University, Taiyuan, China
| | - Yahui Li
- Department of Biochemistry & Molecular Biology, Shanxi Medical University, Taiyuan, China
| | - Zhiming Kang
- Department of Biochemistry & Molecular Biology, Shanxi Medical University, Taiyuan, China
| | - Tao Bai
- Department of Pathology, First Affiliated Hospital of Shanxi Medical University, Taiyuan, China
| | - Yanfeng Xi
- Department of Pathology, Shanxi Provincial Cancer Hospital, Taiyuan, China
| | - Jun Xu
- Department of General Surgery, Shanxi Grand Hospital, Taiyuan, China
| | - Gongqin Sun
- Department of Biochemistry & Molecular Biology, Shanxi Medical University, Taiyuan, China; Department of Cell and Molecular Biology, University of Rhode Island, Kingston, Rhode Island.
| | - Tao Yang
- Department of Biochemistry & Molecular Biology, Shanxi Medical University, Taiyuan, China.
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241
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Gao Y, Yang F, Yang X, Zhang L, Yu H, Cheng X, Xu S, Pan J, Wang K, Li P. Mitochondrial metabolism is inhibited by the
HIF
1α‐
MYC
‐
PGC
‐1β axis in
BRAF
V600E thyroid cancer. FEBS J 2019; 286:1420-1436. [DOI: 10.1111/febs.14786] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 11/17/2018] [Accepted: 02/13/2019] [Indexed: 12/27/2022]
Affiliation(s)
- Yanyan Gao
- Key Laboratory of Nuclear Medicine Ministry of Health Jiangsu Key Laboratory of Molecular Nuclear Medicine Jiangsu Institute of Nuclear Medicine Wuxi China
- Center for Vascular Biology Institute for Translational Medicine College of Medicine Qingdao University China
| | - Fang Yang
- Center of System Medicine Institute of Basic Medical Sciences Chinese Academy of Medical Sciences & Peking Union Medical College Beijing China
| | - Xiu‐An Yang
- School of Basic Medical Science Chengde Medical University China
| | - Li Zhang
- Key Laboratory of Nuclear Medicine Ministry of Health Jiangsu Key Laboratory of Molecular Nuclear Medicine Jiangsu Institute of Nuclear Medicine Wuxi China
| | - Huixin Yu
- Key Laboratory of Nuclear Medicine Ministry of Health Jiangsu Key Laboratory of Molecular Nuclear Medicine Jiangsu Institute of Nuclear Medicine Wuxi China
| | - Xian Cheng
- Key Laboratory of Nuclear Medicine Ministry of Health Jiangsu Key Laboratory of Molecular Nuclear Medicine Jiangsu Institute of Nuclear Medicine Wuxi China
| | - Shichen Xu
- State Key Laboratory of Food Science and Technology School of Food Science and Technology Jiangnan University Wuxi China
| | - Jie Pan
- State Key Laboratory of Food Science and Technology School of Food Science and Technology Jiangnan University Wuxi China
| | - Kun Wang
- Center for Developmental Cardiology Institute for Translational Medicine College of Medicine Qingdao University Qingdao China
| | - Peifeng Li
- Center for Vascular Biology Institute for Translational Medicine College of Medicine Qingdao University China
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242
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Ma B, Cheng H, Mu C, Geng G, Zhao T, Luo Q, Ma K, Chang R, Liu Q, Gao R, Nie J, Xie J, Han J, Chen L, Ma G, Zhu Y, Chen Q. The SIAH2-NRF1 axis spatially regulates tumor microenvironment remodeling for tumor progression. Nat Commun 2019; 10:1034. [PMID: 30833558 PMCID: PMC6399320 DOI: 10.1038/s41467-019-08618-y] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 01/22/2019] [Indexed: 02/07/2023] Open
Abstract
The interactions between tumor cells with their microenvironments, including hypoxia, acidosis and immune cells, lead to the tumor heterogeneity which promotes tumor progression. Here, we show that SIAH2-NRF1 axis remodels tumor microenvironment through regulating tumor mitochondrial function, tumor-associated macrophages (TAMs) polarization and cell death for tumor maintenance and progression. Mechanistically, low mitochondrial gene expression in breast cancers is associated with a poor clinical outcome. The hypoxia-activated E3 ligase SIAH2 spatially downregulates nuclear-encoded mitochondrial gene expression including pyruvate dehydrogenase beta via degrading NRF1 (Nuclear Respiratory Factor 1) through ubiquitination on lysine 230, resulting in enhanced Warburg effect, metabolic reprogramming and pro-tumor immune response. Dampening NRF1 degradation under hypoxia not only impairs the polarization of TAMs, but also promotes tumor cells to become more susceptible to apoptosis in a FADD-dependent fashion, resulting in secondary necrosis due to the impairment of efferocytosis. These data represent that inhibition of NRF1 degradation is a potential therapeutic strategy against cancer.
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Affiliation(s)
- Biao Ma
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, China.
| | - Hongcheng Cheng
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Chenglong Mu
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Guangfeng Geng
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Tian Zhao
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Qian Luo
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Kaili Ma
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Rui Chang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Qiangqiang Liu
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Ruize Gao
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Junli Nie
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Jiaying Xie
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Jinxue Han
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Linbo Chen
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Gui Ma
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Yushan Zhu
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, China.
| | - Quan Chen
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, China. .,State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China.
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243
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Cechová J, Lýsek J, Bartas M, Brázda V. Complex analyses of inverted repeats in mitochondrial genomes revealed their importance and variability. Bioinformatics 2019; 34:1081-1085. [PMID: 29126205 PMCID: PMC6030915 DOI: 10.1093/bioinformatics/btx729] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Accepted: 11/07/2017] [Indexed: 01/08/2023] Open
Abstract
Motivation The NCBI database contains mitochondrial DNA (mtDNA) genomes from numerous species. We investigated the presence and locations of inverted repeat sequences (IRs) in these mtDNA sequences, which are known to be important for regulating nuclear genomes. Results IRs were identified in mtDNA in all species. IR lengths and frequencies correlate with evolutionary age and the greatest variability was detected in subgroups of plants and fungi and the lowest variability in mammals. IR presence is non-random and evolutionary favoured. The frequency of IRs generally decreased with IR length, but not for IRs 24 or 30 bp long, which are 1.5 times more abundant. IRs are enriched in sequences from the replication origin, followed by D-loop, stem-loop and miscellaneous sequences, pointing to the importance of IRs in regulatory regions of mitochondrial DNA. Availability and implementation Data were produced using Palindrome analyser, freely available on the web at http://bioinformatics.ibp.cz. Supplementary information Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- Jana Cechová
- Department of Biophysical Chemistry and Molecular Oncology, Institute of Biophysics, The Czech Academy of Sciences, 612 65 Brno, Czech Republic
| | - Jirí Lýsek
- Department of Informatics, Mendel University in Brno, 613 00 Brno, Czech Republic
| | - Martin Bartas
- Department of Biophysical Chemistry and Molecular Oncology, Institute of Biophysics, The Czech Academy of Sciences, 612 65 Brno, Czech Republic.,Department of Biology and Ecology/Institute of Environmental Technologies, Faculty of Science, University of Ostrava, 701 03 Ostrava, Czech Republic
| | - Václav Brázda
- Department of Biophysical Chemistry and Molecular Oncology, Institute of Biophysics, The Czech Academy of Sciences, 612 65 Brno, Czech Republic
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244
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Tang H, Peng S, Dong Y, Yang X, Yang P, Yang L, Yang B, Bao G. MARCH5 overexpression contributes to tumor growth and metastasis and associates with poor survival in breast cancer. Cancer Manag Res 2018; 11:201-215. [PMID: 30636894 PMCID: PMC6307674 DOI: 10.2147/cmar.s190694] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Background Human MARCH5 is a mitochondrial localized E3 ubiquitin-protein ligase that is critical for the regulation of mitochondrial dynamics. A body of evidence has indicated the close links between unbalanced mitochondrial dynamics and cancers. However, the expression, biological functions, and prognostic significance of MARCH5 in breast cancer (BC) have not been determined. Materials and methods The mRNA and protein expressions of MARCH5 were evaluated by quantitative real-time PCR and Western blot analysis in BC cell lines and tumor tissues. Clinical prognostic significance of MARCH5 was assessed in 65 patients with BC. The biological functions of MARCH5 were determined by in vitro cell proliferation, apoptosis, cell cycle, migration and invasion assays, and in vivo tumor growth and metastasis assays through knockdown or overexpression of MARCH5 in BC cells. In addition, the underlying mechanisms by which MARCH5 regulated BC cell growth and metastasis were explored. Results MARCH5 was substantially upregulated in BC cells mainly due to the downregulation of miR-30a, which contributed to the poor survival of BC patients. MARCH5 promoted the growth and metastasis of BC cells both in vitro and in vivo by inducing G1-S cell cycle arrest and epithelial-mesenchymal transition. Mechanistic investigations revealed that the oncogenic effect of MARCH5 was mainly mediated by increased mitochondrial fission and subsequent ROS production in BC cells. Conclusion Our findings demonstrate that MARCH5 plays a critical oncogenic role in BC cells, which provides experimental evidence supporting MARCH5 as a potential therapeutic target in BC therapy.
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Affiliation(s)
- Haili Tang
- Department of General Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710038, China,
| | - Shujia Peng
- Department of General Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710038, China,
| | - Yanming Dong
- Department of General Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710038, China,
| | - Xiaojun Yang
- Department of General Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710038, China,
| | - Ping Yang
- Department of General Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710038, China,
| | - Lin Yang
- Department of General Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710038, China,
| | - Bing Yang
- Department of General Surgery, JingYang Country Hospital, XianYang, Shaanxi 713700, China
| | - Guoqiang Bao
- Department of General Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710038, China,
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245
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Jackson M, Serada N, Sheehan M, Srinivasan S, Mason N, Guha M, Avadhani N. Mitochondrial genome and functional defects in osteosarcoma are associated with their aggressive phenotype. PLoS One 2018; 13:e0209489. [PMID: 30576337 PMCID: PMC6303035 DOI: 10.1371/journal.pone.0209489] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 12/06/2018] [Indexed: 12/19/2022] Open
Abstract
Osteosarcoma (OSA) is an aggressive mesenchymal tumor of the bone that affects children and occurs spontaneously in dogs. Human and canine OSA share similar clinical, biological and genetic features, which make dogs an excellent comparative model to investigate the etiology and pathogenesis of OSA. Mitochondrial (mt) defects have been reported in many different cancers including OSA, although it is not known whether these defects contribute to OSA progression and metastasis. Taking a comparative approach using canine OSA cell lines and tumor tissues we investigated the effects of mtDNA content and dysfunction on OSA biology. OSA tumor tissues had low mtDNA contents compared to the matched non-tumor tissues. We observed mitochondrial heterogeneity among the OSA cell lines and the most invasive cells expressing increased levels of OSA metastasis genes contained the highest amount of mitochondrial defects (reduced mtDNA copies, mt respiration, and expression of electron transport chain proteins). While mitochondria maintain a filamentous network in healthy cells, the mitochondrial morphology in OSA cells were mostly "donut shaped", typical of "stressed" mitochondria. Moreover the expression levels of mitochondrial retrograde signaling proteins Akt1, IGF1R, hnRNPA2 and NFkB correlated with the invasiveness of the OSA cells. Furthermore, we demonstrate the causal role of mitochondrial defects in inducing the invasive phenotype by Ethidium Bromide induced-mtDNA depletion in OSA cells. Our data suggest that defects in mitochondrial genome and function are prevalent in OSA and that lower mtDNA content is associated with higher tumor cell invasiveness. We propose that mt defects in OSA might serve as a prognostic biomarker and a target for therapeutic intervention in OSA patients.
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Affiliation(s)
- Martina Jackson
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Nicole Serada
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Maura Sheehan
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Satish Srinivasan
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Nicola Mason
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Manti Guha
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Narayan Avadhani
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
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246
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Chen M, Ye K, Zhang B, Xin Q, Li P, Kong AN, Wen X, Yang J. Paris Saponin II inhibits colorectal carcinogenesis by regulating mitochondrial fission and NF-κB pathway. Pharmacol Res 2018; 139:273-285. [PMID: 30471409 DOI: 10.1016/j.phrs.2018.11.029] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 11/01/2018] [Accepted: 11/20/2018] [Indexed: 12/13/2022]
Abstract
Colorectal cancer (CRC) is one of the leading causes of cancer-related morbidity and mortality worldwide. Accumulating evidence suggests that mitochondrial dynamics are closely implicated in carcinogenesis including CRC. Paris Saponin II (PSII), a major steroidal saponin extracted from Rhizoma Paris polyphylla, has emerged as a potential anticancer agent. However, the effects of PSII on CRC and its underlying mechanisms remain unknown. In the present study, we found PSII induced apoptosis and inhibited colony formation in HT 29 and HCT 116 cells, and cell cycle arrest in G1 phase. PSII inhibited the phosphorylation of ERK1/2 and mitochondrial translocation of dynamin-related protein 1 (Drp1) by dephosphorylating Drp1 at Ser616, leading to the suppression of mitochondrial fission. PSII also suppressed NF-κB activation as a result of the inhibition of IKKβ and p65 translocation. Drp1 knockdown remarkably downregulated the nuclear expression of p65 and its target genes cyclin D1 and c-Myc in HCT 116 cell, confirming the link between mitochondrial fission and NF-κB pathway. Silencing of Drp 1 enhanced the inhibitory effects of PSII on p65 phosphorylation and the expressions of cyclin D1 and c-Myc, revealing that the inhibitory effects of PSII on cyclin D1 and c-Myc were relevant in the suppression of Drp1 and NF-κB activation. An in vivo study demonstrated PSII remarkably decreased the xenograft tumor size and suppressed the phosphorylation of ERK1/2 and Drp1 at Ser616. Taken together, our results suggested that PSII could inhibit colorectal carcinogenesis, at least in part, by regulating mitochondrial fission and NF-κB pathway.
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Affiliation(s)
- Meihong Chen
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Ke Ye
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Biying Zhang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Qiao Xin
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Ping Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Ah-Ng Kong
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, 08854, USA
| | - Xiaodong Wen
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China.
| | - Jie Yang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China.
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247
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Hwang IW, Kwon BN, Kim HJ, Han SH, Lee NR, Lim MH, Kwon HJ, Jin HJ. Assessment of associations between mitochondrial DNA haplogroups and attention deficit and hyperactivity disorder in Korean children. Mitochondrion 2018; 47:174-178. [PMID: 30423452 DOI: 10.1016/j.mito.2018.11.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 09/21/2018] [Accepted: 11/02/2018] [Indexed: 01/05/2023]
Abstract
Attention deficit hyperactivity disorder (ADHD) is a multifactorial disorder with multiple environmental and biological etiologies, including genetic factors. Until now, several genetic variants have been reported to be significantly associated with ADHD. Recently, the relationship between mitochondrial DNA (mtDNA) haplogroups and psychiatric disorders such as schizophrenia has also been reported. However, currently there are no reports pertaining to the genetic association between mtDNA haplogroups and ADHD. Therefore, we performed an mtDNA haplogroup analysis of a total of 472 Korean children (150 Children with ADHD and 322 controls). The 20 East Asian specific mtDNA haplogroups were determined using the SNaPshot assay. We also sequenced the displacement loop (D-loop) region, position 15,971-613. Our results showed that haplogroup B4 was significantly associated with ADHD (OR, 1.90; 95% CI, 1.055-3.429; p = 0.031). A marginally significant association was found in subjects with ADHD and haplogroup B5 (OR, 0.26; 95% CI, 0.059-1.139; p = 0.041). When stratified based on gender, an association was also observed between haplogroup B5 and boys diagnosed with ADHD (OR, 0.17; 95% CI, 0.022-1.340; p = 0.048). Compared with boys, girls with ADHD carried an excess of the haplogroup D4b (OR, 4.83; 95% CI, 1.352-17.272; p = 0.014). Stratified analysis of subtypes also showed significant results (combined: haplogroup B4, p = 0.007; inattentive: haplogroup F, p = 0.022). Our results showed a possible role of mtDNA haplogroups in the genetic etiology of ADHD and ADHD symptoms in Korean children.
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Affiliation(s)
- In Wook Hwang
- Department of Biological Sciences, College of Natural Science, Dankook University, Cheonan, South Korea
| | - Bit Na Kwon
- Department of Biological Sciences, College of Natural Science, Dankook University, Cheonan, South Korea
| | - Hyung Jun Kim
- Department of Biological Sciences, College of Natural Science, Dankook University, Cheonan, South Korea
| | - Seung Hun Han
- Department of Biological Sciences, College of Natural Science, Dankook University, Cheonan, South Korea
| | - Noo Ri Lee
- Department of Biological Sciences, College of Natural Science, Dankook University, Cheonan, South Korea
| | - Myung Ho Lim
- Department of Psychology and Psychotherapy, College of Health Sciences, Dankook University, Cheonan, South Korea
| | - Ho Jang Kwon
- Department of Preventive Medicine, College of Medicine, Dankook University, Cheonan, South Korea
| | - Han Jun Jin
- Department of Biological Sciences, College of Natural Science, Dankook University, Cheonan, South Korea.
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248
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Wang J, Mirzapoiazova T, Carol Tan YH, Pang KM, Pozhitkov A, Wang Y, Wang Y, Mambetsariev B, Wang E, Nasser MW, Batra SK, Raz D, Reckamp K, Kulkarni P, Zheng Y, Salgia R. Inhibiting crosstalk between MET signaling and mitochondrial dynamics and morphology: a novel therapeutic approach for lung cancer and mesothelioma. Cancer Biol Ther 2018; 19:1023-1032. [PMID: 30311833 PMCID: PMC6301806 DOI: 10.1080/15384047.2018.1472193] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The receptor tyrosine kinase MET is frequently involved in malignant transformation and inhibiting its activity in MET-dependent cancers is associated with improved clinical outcomes. Emerging evidence also suggests that mitochondria play an essential role in tumorigenesis and Dynamin Related Protein (DRP1), a key component of the mitochondrial fission machinery, has emerged as an attractive therapeutic target. Here, we report that inhibiting MET activity with the tyrosine kinase inhibitor MGCD516 attenuates viability, migration, and invasion of non-small cell lung cancer (NSCLC) and malignant pleural mesothelioma (MPM) cell lines in vitro, and significantly retards tumor growth in vivo. Interestingly, MGCD516 treatment also results in altered mitochondrial morphology in these cell lines. Furthermore, inhibiting MET pharmacologically or knocking down its expression using siRNA, decreases DRP1 activity alluding to possible crosstalk between them in these two cancers. Consistently, a combination of MGCD516 and mdivi-1, a quinazolinone reported to inhibit mitochondrial fission, is more effective in attenuating proliferation of NSCLC and MPM cell lines than either drug alone. Considered together, the present study has uncovered a novel mechanism underlying mitochondrial regulation by MET that involves crosstalk with DRP1, and suggests that a combination therapy targeting both MET and DRP1 could be a novel strategy for NSCLC and MPM.
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Affiliation(s)
- Jiale Wang
- a Department of Medical Oncology & Therapeutics Research , City of Hope National Medical Center , Duarte , CA , USA.,f Oncology Center, Zhujiang Hospital , Southern Medical University , Guangzhou , China
| | - Tamara Mirzapoiazova
- a Department of Medical Oncology & Therapeutics Research , City of Hope National Medical Center , Duarte , CA , USA
| | - Yi-Hung Carol Tan
- b Department of Medicine, Section of Hematology/ Oncology , University of Chicago Medicine and Biologic Sciences , Chicago , IL , USA
| | - Ka Ming Pang
- a Department of Medical Oncology & Therapeutics Research , City of Hope National Medical Center , Duarte , CA , USA
| | - Alex Pozhitkov
- c Center for Informatics , City of Hope National Medical Center , Duarte , CA , USA
| | - Yingyu Wang
- c Center for Informatics , City of Hope National Medical Center , Duarte , CA , USA
| | - Yang Wang
- a Department of Medical Oncology & Therapeutics Research , City of Hope National Medical Center , Duarte , CA , USA
| | - Bolot Mambetsariev
- a Department of Medical Oncology & Therapeutics Research , City of Hope National Medical Center , Duarte , CA , USA
| | - Edward Wang
- a Department of Medical Oncology & Therapeutics Research , City of Hope National Medical Center , Duarte , CA , USA
| | - Mohd W Nasser
- d Department of Biochemistry and Molecular Biology, Division of Thoracic Surgery , University of Nebraska College of Medicine , Omaha , NE , USA
| | - Surinder K Batra
- d Department of Biochemistry and Molecular Biology, Division of Thoracic Surgery , University of Nebraska College of Medicine , Omaha , NE , USA
| | - Dan Raz
- e Department of Surgery , City of Hope National Medical Center , Duarte , CA , USA
| | - Karen Reckamp
- a Department of Medical Oncology & Therapeutics Research , City of Hope National Medical Center , Duarte , CA , USA
| | - Prakash Kulkarni
- a Department of Medical Oncology & Therapeutics Research , City of Hope National Medical Center , Duarte , CA , USA
| | - Yanfang Zheng
- f Oncology Center, Zhujiang Hospital , Southern Medical University , Guangzhou , China
| | - Ravi Salgia
- a Department of Medical Oncology & Therapeutics Research , City of Hope National Medical Center , Duarte , CA , USA
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249
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Hepatoprotective effect of flavonoid-enriched fraction from Cyclocarya paliurus leaves on LPS/D-GalN-induced acute liver failure. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.07.031] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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250
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Hu WB, Ouyang KH, Wu GQ, Chen H, Xiong L, Liu X, Wang N, Wang WJ. Hepatoprotective effect of flavonoid-enriched fraction from Cyclocarya paliurus leaves on LPS/D-GalN-induced acute liver failure. J Funct Foods 2018. [DOI: https://doi.org/10.1016/j.jff.2018.07.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
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