151
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Adebayo M, Singh S, Singh AP, Dasgupta S. Mitochondrial fusion and fission: The fine-tune balance for cellular homeostasis. FASEB J 2021; 35:e21620. [PMID: 34048084 PMCID: PMC8415099 DOI: 10.1096/fj.202100067r] [Citation(s) in RCA: 159] [Impact Index Per Article: 53.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 04/06/2021] [Accepted: 04/10/2021] [Indexed: 12/13/2022]
Abstract
Mitochondria are highly dynamic, maternally inherited cytoplasmic organelles, which fulfill cellular energy demand through the oxidative phosphorylation system. Besides, they play an active role in calcium and damage-associated molecular patterns signaling, amino acid, and lipid metabolism, and apoptosis. Thus, the maintenance of mitochondrial integrity and homeostasis is extremely critical, which is achieved through continual fusion and fission. Mitochondrial fusion allows the transfer of gene products between mitochondria for optimal functioning, especially under metabolic and environmental stress. On the other hand, fission is crucial for mitochondrial division and quality control. The imbalance between these two processes is associated with various ailments such as cancer, neurodegenerative and cardiovascular diseases. This review discusses the molecular mechanisms that control mitochondrial fusion and fission and how the disruption of mitochondrial dynamics manifests into various disease conditions.
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Affiliation(s)
- Mary Adebayo
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604
- Department of Pathology, College of Medicine, University of South Alabama, Mobile, AL 36617
| | - Seema Singh
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604
- Department of Pathology, College of Medicine, University of South Alabama, Mobile, AL 36617
- Department of Biochemistry and Molecular Biology, University of South Alabama, Mobile, AL 36688
| | - Ajay Pratap Singh
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604
- Department of Pathology, College of Medicine, University of South Alabama, Mobile, AL 36617
- Department of Biochemistry and Molecular Biology, University of South Alabama, Mobile, AL 36688
| | - Santanu Dasgupta
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604
- Department of Pathology, College of Medicine, University of South Alabama, Mobile, AL 36617
- Department of Biochemistry and Molecular Biology, University of South Alabama, Mobile, AL 36688
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152
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Yang H, Li Y, Hu B. Potential role of mitochondria in gastric cancer detection: Fission and glycolysis. Oncol Lett 2021; 21:439. [PMID: 33868477 PMCID: PMC8045152 DOI: 10.3892/ol.2021.12700] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 03/22/2021] [Indexed: 02/06/2023] Open
Abstract
Gastric cancer (GC) is characterized by high morbidity and mortality rates worldwide. Helicobacter pylori infection, high salt intake, smoking, alcohol, low fiber intake, family history of GC, obesity and precancerous lesions, including chronic atrophic gastritis and intestinal metaplasia, are considered general risk factors for GC. Image enhancement endoscopy methods, which improve the visualization of mucosal structures and vascularity, may be used for the early diagnosis of GC, such as narrow band imaging, which can reveal fine details of subtle superficial abnormalities of early gastric cancer (EGC). Mitochondria are well-known for their role in producing ATP via the tricarboxylic acid cycle. In cancer cells, the energetic metabolism can be reprogrammed as anaerobic glycolysis for energy production and anabolic growth. In addition to their dominant metabolic functions, mitochondria participate in several central signaling pathways, such as the apoptotic pathway and NLRP3 inflammasome activation. Conversely, mitochondrial dynamics, including fission/fusion and mitophagy, can also contribute to the pathogenesis of cancer. The dysfunction and dysregulation of mitochondria have been associated with several ageing and degenerative diseases, as well as cancer. The present review focuses on energy metabolism and mitochondrial dynamics, and summarizes the changes in gastric carcinogenesis, the diagnosis of EGC and indicates potential targeted treatments.
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Affiliation(s)
- Hang Yang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yan Li
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Bing Hu
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
- Correspondence to: Professor Bing Hu, Department of Gastroenterology, West China Hospital, Sichuan University, 37 Guo Xue Xiang, Wu Hou, Chengdu, Sichuan 610041, P.R. China, E-mail:
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153
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Xue C, Li G, Bao Z, Zhou Z, Li L. Mitochondrial pyruvate carrier 1: a novel prognostic biomarker that predicts favourable patient survival in cancer. Cancer Cell Int 2021; 21:288. [PMID: 34059057 PMCID: PMC8166087 DOI: 10.1186/s12935-021-01996-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 05/26/2021] [Indexed: 12/14/2022] Open
Abstract
Mitochondrial pyruvate carrier 1 (MPC1) is a key metabolic protein that regulates the transport of pyruvate into the mitochondrial inner membrane. MPC1 deficiency may cause metabolic reprogramming. However, whether and how MPC1 controls mitochondrial oxidative capacity in cancer are still relatively unknown. MPC1 deficiency was recently found to be strongly associated with various diseases and cancer hallmarks. We utilized online databases and uncovered that MPC1 expression is lower in many cancer tissues than in adjacent normal tissues. In addition, MPC1 expression was found to be substantially altered in five cancer types: breast-invasive carcinoma (BRCA), kidney renal clear cell carcinoma (KIRC), lung adenocarcinoma (LUAD), pancreatic adenocarcinoma (PAAD), and prostate adenocarcinoma (PRAD). However, in KIRC, LUAD, PAAD, and PRAD, high MPC1 expression is closely associated with favourable prognosis. Low MPC1 expression in BRCA is significantly associated with shorter overall survival time. MPC1 expression shows strong positive and negative correlations with immune cell infiltration in thymoma (THYM) and thyroid carcinoma (THCA). Furthermore, we have comprehensively summarized the current literature regarding the metabolic reprogramming effects of MPC1 in various cancers. As shown in the literature, MPC1 expression is significantly decreased in cancer tissue and associated with poor prognosis. We discuss the potential metabolism-altering effects of MPC1 in cancer, including decreased pyruvate transport ability; impaired pyruvate-driven oxidative phosphorylation (OXPHOS); and increased lactate production, glucose consumption, and glycolytic capacity, and the underlying mechanisms. These activities facilitate tumour progression, migration, and invasion. MPC1 is a novel cancer biomarker and potentially powerful therapeutic target for cancer diagnosis and treatment. Further studies aimed at slowing cancer progression are in progress.
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Affiliation(s)
- Chen Xue
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79 Qingchun Road, Shangcheng District, Hangzhou, 310003, China
| | - Ganglei Li
- Department of Neurosurgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Zhengyi Bao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79 Qingchun Road, Shangcheng District, Hangzhou, 310003, China
| | - Ziyuan Zhou
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79 Qingchun Road, Shangcheng District, Hangzhou, 310003, China
| | - Lanjuan Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79 Qingchun Road, Shangcheng District, Hangzhou, 310003, China.
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154
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Li X, Wang M, Li S, Chen Y, Wang M, Wu Z, Sun X, Yao L, Dong H, Song Y, Xu Y. HIF-1-induced mitochondrial ribosome protein L52: a mechanism for breast cancer cellular adaptation and metastatic initiation in response to hypoxia. Am J Cancer Res 2021; 11:7337-7359. [PMID: 34158854 PMCID: PMC8210597 DOI: 10.7150/thno.57804] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 05/16/2021] [Indexed: 01/16/2023] Open
Abstract
Background: Hypoxia is a hallmark of the physical microenvironment of solid tumors. As a key factor that regulates tumor development and progression, hypoxia can reprogram the expression of multiple genes, whose biological function and molecular mechanism in cancer remain largely unclear. The mitochondrial ribosome protein family consists of nuclear-encoded mitochondrial proteins that are responsible for protein synthesis in the mitochondria. Methods: A high-throughput RNA sequencing assay was carried out to identify differentially expressed mRNAs between breast cancer tissues and adjacent normal tissues as well as breast tumors with metastasis and those without metastasis. Our clinical samples and TCGA database were analyzed to observe the clinical value of mitochondrial ribosome protein L52 (MRPL52) in human breast cancer. Potent hypoxia response elements in the promoter region of MRPL52 were identified and validated by chromatin immunoprecipitation and luciferase reporter assays. Functional experiments were performed using breast cancer cell lines with MRPL52 ectopic expression and knockdown cultured in a 20% or 1% O2 environment. Results: MRPL52 expression was upregulated in human breast cancer and was significantly associated with aggressive clinicopathological characteristics and a higher metastatic risk of breast cancer patients. We found that the overexpression of MRPL52 in breast cancer is induced by hypoxia-inducible factor-1 in response to hypoxic exposure. The role of MRPL52 in suppressing apoptosis and promoting migration and invasion of hypoxic breast cancer cells was demonstrated by our experimental evidence. Mechanistically, MRPL52 promoted PTEN-induced putative kinase 1 /Parkin-dependent mitophagy to remove oxidatively damaged mitochondria and prevent uncontrolled reactive oxygen species (ROS) generation, thus repressing activation of the mitochondrial apoptotic cascade. Additionally, MRPL52 augmented epithelial-mesenchymal transition, migration and invasion of hypoxic breast cancer cells by activating the ROS-Notch1-Snail signaling pathway. Benefited from this bidirectional regulatory mechanism, MRPL52 is responsible for maintaining ROS levels in a window that can induce tumorigenic signal transduction without causing cytotoxicity in hypoxic breast cancer cells. Conclusions: This work elucidates the molecular mechanism by which MRPL52 mediates hypoxia-induced apoptotic resistance and metastatic initiation of breast cancer, and provides new insights into the interplay between cancer and the tumor microenvironment.
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155
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Looprasertkul S, Sereemaspun A, Kitkumthorn N, Sooklert K, Sarachana T, Jindatip D. Gold Nanoparticles Affect Pericyte Biology and Capillary Tube Formation. Pharmaceutics 2021; 13:pharmaceutics13050738. [PMID: 34067883 PMCID: PMC8156556 DOI: 10.3390/pharmaceutics13050738] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/07/2021] [Accepted: 05/11/2021] [Indexed: 11/18/2022] Open
Abstract
Gold nanoparticles (AuNPs) are used for diagnostic and therapeutic purposes, especially antiangiogenesis, which are accomplished via inhibition of endothelial cell proliferation, migration, and tube formation. However, no research has been performed on the effects of AuNPs in pericytes, which play vital roles in endothelial cell functions and capillary tube formation during physiological and pathological processes. Therefore, the effects of AuNPs on the morphology and functions of pericytes need to be elucidated. This study treated human placental pericytes in monoculture with 20 nm AuNPs at a concentration of 30 ppm. Ki-67 and platelet-derived growth factor receptor-β (PDGFR-β) mRNA expression was measured using real-time reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Cell migration was assessed by Transwell migration assay. The fine structures of pericytes were observed by transmission electron microscopy. In addition, 30 ppm AuNP-treated pericytes and intact human umbilical vein endothelial cells were cocultured on Matrigel to form three-dimensional (3D) capillary tubes. The results demonstrated that AuNPs significantly inhibited proliferation, reduced PDGFR-β mRNA expression, and decreased migration in pericytes. Ultrastructural analysis of pericytes revealed AuNPs in late endosomes, autolysosomes, and mitochondria. Remarkably, many mitochondria were swollen or damaged. Additionally, capillary tube formation was reduced. We found that numerous pericytes on 3D capillary tubes were round and did not extend their processes along the tubes, which resulted in more incomplete tube formation in the treatment group compared with the control group. In summary, AuNPs can affect pericyte proliferation, PDGFR-β mRNA expression, migration, morphology, and capillary tube formation. The findings highlight the possible application of AuNPs in pericyte-targeted therapy for antiangiogenesis.
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Affiliation(s)
- Sasikarn Looprasertkul
- Department of Anatomy, Faculty of Medicine, Chulalongkorn University, 1873 Rama 4 Rd., Wangmai, Pathumwan, Bangkok 10330, Thailand; (S.L.); (A.S.); (K.S.)
| | - Amornpun Sereemaspun
- Department of Anatomy, Faculty of Medicine, Chulalongkorn University, 1873 Rama 4 Rd., Wangmai, Pathumwan, Bangkok 10330, Thailand; (S.L.); (A.S.); (K.S.)
- Nanomedicine Research Unit, Department of Anatomy, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
| | - Nakarin Kitkumthorn
- Department of Oral Biology, Faculty of Dentistry, Mahidol University, Payathai Rd., Ratchathewi, Bangkok 10400, Thailand;
| | - Kanidta Sooklert
- Department of Anatomy, Faculty of Medicine, Chulalongkorn University, 1873 Rama 4 Rd., Wangmai, Pathumwan, Bangkok 10330, Thailand; (S.L.); (A.S.); (K.S.)
- Nanomedicine Research Unit, Department of Anatomy, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
| | - Tewarit Sarachana
- Age-Related Inflammation and Degeneration Research Unit, Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, 154 Rama 1 Rd., Wangmai, Pathumwan, Bangkok 10330, Thailand;
- SYstems Neuroscience of Autism and PSychiatric Disorders (SYNAPS) Research Unit, Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - Depicha Jindatip
- Department of Anatomy, Faculty of Medicine, Chulalongkorn University, 1873 Rama 4 Rd., Wangmai, Pathumwan, Bangkok 10330, Thailand; (S.L.); (A.S.); (K.S.)
- Division of Histology and Cell Biology, Department of Anatomy, School of Medicine, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan
- Correspondence: ; Tel.: +66-2-256-4281
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156
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Coricovac D, Dehelean CA, Pinzaru I, Mioc A, Aburel OM, Macasoi I, Draghici GA, Petean C, Soica C, Boruga M, Vlaicu B, Muntean MD. Assessment of Betulinic Acid Cytotoxicity and Mitochondrial Metabolism Impairment in a Human Melanoma Cell Line. Int J Mol Sci 2021; 22:ijms22094870. [PMID: 34064489 PMCID: PMC8125295 DOI: 10.3390/ijms22094870] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/26/2021] [Accepted: 05/01/2021] [Indexed: 11/30/2022] Open
Abstract
Melanoma represents one of the most aggressive and drug resistant skin cancers with poor prognosis in its advanced stages. Despite the increasing number of targeted therapies, novel approaches are needed to counteract both therapeutic resistance and the side effects of classic therapy. Betulinic acid (BA) is a bioactive phytocompound that has been reported to induce apoptosis in several types of cancers including melanomas; however, its effects on mitochondrial bioenergetics are less investigated. The present study performed in A375 human melanoma cells was aimed to characterize the effects of BA on mitochondrial bioenergetics and cellular behavior. BA demonstrated a dose-dependent inhibitory effect in both mitochondrial respiration and glycolysis in A375 melanoma cells and at sub-toxic concentrations (10 μM) induced mitochondrial dysfunction by eliciting a decrease in the mitochondrial membrane potential and changes in mitochondria morphology and localization. In addition, BA triggered a dose-dependent cytotoxic effect characterized by apoptotic features: morphological alterations (nuclear fragmentation, apoptotic bodies) and the upregulation of pro-apoptotic markers mRNA expression (Bax, Bad and Bak). BA represents a viable therapeutic option via a complex modulatory effect on mitochondrial metabolism that might be useful in advanced melanoma or as reliable strategy to counteract resistance to standard therapy.
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Affiliation(s)
- Dorina Coricovac
- Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timișoara, Eftimie Murgu Square No. 2, RO-300041 Timișoara, Romania; (D.C.); (C.A.D.); (I.M.); (G.A.D.); (C.P.); (C.S.)
- Research Center for Pharmaco-toxicological Evaluations, Faculty of Pharmacy, “Victor Babes” University of Medicine and Pharmacy Timișoara, Eftimie Murgu Square No. 2, RO-300041 Timișoara, Romania
| | - Cristina Adriana Dehelean
- Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timișoara, Eftimie Murgu Square No. 2, RO-300041 Timișoara, Romania; (D.C.); (C.A.D.); (I.M.); (G.A.D.); (C.P.); (C.S.)
- Research Center for Pharmaco-toxicological Evaluations, Faculty of Pharmacy, “Victor Babes” University of Medicine and Pharmacy Timișoara, Eftimie Murgu Square No. 2, RO-300041 Timișoara, Romania
| | - Iulia Pinzaru
- Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timișoara, Eftimie Murgu Square No. 2, RO-300041 Timișoara, Romania; (D.C.); (C.A.D.); (I.M.); (G.A.D.); (C.P.); (C.S.)
- Research Center for Pharmaco-toxicological Evaluations, Faculty of Pharmacy, “Victor Babes” University of Medicine and Pharmacy Timișoara, Eftimie Murgu Square No. 2, RO-300041 Timișoara, Romania
- Correspondence: (I.P.); (A.M.); Tel.: +40-256-494-604
| | - Alexandra Mioc
- Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timișoara, Eftimie Murgu Square No. 2, RO-300041 Timișoara, Romania; (D.C.); (C.A.D.); (I.M.); (G.A.D.); (C.P.); (C.S.)
- Research Center for Pharmaco-toxicological Evaluations, Faculty of Pharmacy, “Victor Babes” University of Medicine and Pharmacy Timișoara, Eftimie Murgu Square No. 2, RO-300041 Timișoara, Romania
- Correspondence: (I.P.); (A.M.); Tel.: +40-256-494-604
| | - Oana-Maria Aburel
- Faculty of Medicine “Victor Babeș” University of Medicine and Pharmacy Timișoara, Eftimie Murgu Square No. 2, RO-300041 Timișoara, Romania; (O.-M.A.); (M.B.); (B.V.); (M.D.M.)
- Center for Translational Research and Systems Medicine, Faculty of Medicine,” Victor Babeș” University of Medicine and Pharmacy Timișoara, Eftimie Murgu Sq. no. 2, RO-300041 Timișoara, Romania
| | - Ioana Macasoi
- Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timișoara, Eftimie Murgu Square No. 2, RO-300041 Timișoara, Romania; (D.C.); (C.A.D.); (I.M.); (G.A.D.); (C.P.); (C.S.)
- Research Center for Pharmaco-toxicological Evaluations, Faculty of Pharmacy, “Victor Babes” University of Medicine and Pharmacy Timișoara, Eftimie Murgu Square No. 2, RO-300041 Timișoara, Romania
| | - George Andrei Draghici
- Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timișoara, Eftimie Murgu Square No. 2, RO-300041 Timișoara, Romania; (D.C.); (C.A.D.); (I.M.); (G.A.D.); (C.P.); (C.S.)
- Research Center for Pharmaco-toxicological Evaluations, Faculty of Pharmacy, “Victor Babes” University of Medicine and Pharmacy Timișoara, Eftimie Murgu Square No. 2, RO-300041 Timișoara, Romania
| | - Crina Petean
- Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timișoara, Eftimie Murgu Square No. 2, RO-300041 Timișoara, Romania; (D.C.); (C.A.D.); (I.M.); (G.A.D.); (C.P.); (C.S.)
| | - Codruta Soica
- Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timișoara, Eftimie Murgu Square No. 2, RO-300041 Timișoara, Romania; (D.C.); (C.A.D.); (I.M.); (G.A.D.); (C.P.); (C.S.)
- Research Center for Pharmaco-toxicological Evaluations, Faculty of Pharmacy, “Victor Babes” University of Medicine and Pharmacy Timișoara, Eftimie Murgu Square No. 2, RO-300041 Timișoara, Romania
| | - Madalina Boruga
- Faculty of Medicine “Victor Babeș” University of Medicine and Pharmacy Timișoara, Eftimie Murgu Square No. 2, RO-300041 Timișoara, Romania; (O.-M.A.); (M.B.); (B.V.); (M.D.M.)
| | - Brigitha Vlaicu
- Faculty of Medicine “Victor Babeș” University of Medicine and Pharmacy Timișoara, Eftimie Murgu Square No. 2, RO-300041 Timișoara, Romania; (O.-M.A.); (M.B.); (B.V.); (M.D.M.)
| | - Mirela Danina Muntean
- Faculty of Medicine “Victor Babeș” University of Medicine and Pharmacy Timișoara, Eftimie Murgu Square No. 2, RO-300041 Timișoara, Romania; (O.-M.A.); (M.B.); (B.V.); (M.D.M.)
- Center for Translational Research and Systems Medicine, Faculty of Medicine,” Victor Babeș” University of Medicine and Pharmacy Timișoara, Eftimie Murgu Sq. no. 2, RO-300041 Timișoara, Romania
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157
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Yapa NMB, Lisnyak V, Reljic B, Ryan MT. Mitochondrial dynamics in health and disease. FEBS Lett 2021; 595:1184-1204. [PMID: 33742459 DOI: 10.1002/1873-3468.14077] [Citation(s) in RCA: 129] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/08/2021] [Accepted: 03/09/2021] [Indexed: 12/11/2022]
Abstract
In animals, mitochondria are mainly organised into an interconnected tubular network extending across the cell along a cytoskeletal scaffold. Mitochondrial fission and fusion, as well as distribution along cytoskeletal tracks, are counterbalancing mechanisms acting in concert to maintain a mitochondrial network tuned to cellular function. Balanced mitochondrial dynamics permits quality control of the network including biogenesis and turnover, and distribution of mitochondrial DNA, and is linked to metabolic status. Cellular and organismal health relies on a delicate balance between fission and fusion, and large rearrangements in the mitochondrial network can be seen in response to cellular insults and disease. Indeed, dysfunction in the major components of the fission and fusion machineries including dynamin-related protein 1 (DRP1), mitofusins 1 and 2 (MFN1, MFN2) and optic atrophy protein 1 (OPA1) and ensuing imbalance of mitochondrial dynamics can lead to neurodegenerative disease. Altered mitochondrial dynamics is also seen in more common diseases. In this review, the machinery involved in mitochondrial dynamics and their dysfunction in disease will be discussed.
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Affiliation(s)
- Nethmi M B Yapa
- Department of Biochemistry and Molecular Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Vic, Australia
| | - Valerie Lisnyak
- Department of Biochemistry and Molecular Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Vic, Australia
| | - Boris Reljic
- Department of Biochemistry and Molecular Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Vic, Australia
| | - Michael T Ryan
- Department of Biochemistry and Molecular Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Vic, Australia
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158
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Adlimoghaddam A, Odero GG, Glazner G, Turner RS, Albensi BC. Nilotinib Improves Bioenergetic Profiling in Brain Astroglia in the 3xTg Mouse Model of Alzheimer's Disease. Aging Dis 2021; 12:441-465. [PMID: 33815876 PMCID: PMC7990369 DOI: 10.14336/ad.2020.0910] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 09/10/2020] [Indexed: 12/27/2022] Open
Abstract
Current treatments targeting amyloid beta in Alzheimer's disease (AD) have minimal efficacy, which results in a huge unmet medical need worldwide. Accumulating data suggest that brain mitochondrial dysfunction play a critical role in AD pathogenesis. Targeting cellular mechanisms associated with mitochondrial dysfunction in AD create a novel approach for drug development. This study investigated the effects of nilotinib, as a selective tyrosine kinase inhibitor, in astroglia derived from 3xTg-AD mice versus their C57BL/6-controls. Parameters included oxygen consumption rates (OCR), ATP, cytochrome c oxidase (COX), citrate synthase (CS) activity, alterations in oxidative phosphorylation (OXPHOS), nuclear factor kappa B (NF-κB), key regulators of mitochondrial dynamics (mitofusin (Mfn1), dynamin-related protein 1 (Drp1)), and mitochondrial biogenesis (peroxisome proliferator-activated receptor gamma coactivator1-alpha (PGC-1α), calcium/calmodulin-dependent protein kinase II (CaMKII), and nuclear factor (erythroid-derived 2)-like 2 (Nrf2)). Nilotinib increased OCR, ATP, COX, Mfn1, and OXPHOS levels in 3xTg astroglia. No significant differences were detected in levels of Drp1 protein and CS activity. Nilotinib enhanced mitochondrial numbers, potentially through a CaMKII-PGC1α-Nrf2 pathway in 3xTg astroglia. Additionally, nilotinib-induced OCR increases were reduced in the presence of the NF-κB inhibitor, Bay11-7082. The data suggest that NF-κB signaling is intimately involved in nilotinib-induced changes in bioenergetics in 3xTg brain astroglia. Nilotinib increased translocation of the NF-κB p50 subunit into the nucleus of 3xTg astroglia that correlates with an increased expression and activation of NF-κB. The current findings support a role for nilotinib in improving mitochondrial function and suggest that astroglia may be a key therapeutic target in treating AD.
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Affiliation(s)
- Aida Adlimoghaddam
- 1Division of Neurodegenerative Disorders, St. Boniface Hospital Research, Winnipeg, MB, Canada
| | - Gary G Odero
- 1Division of Neurodegenerative Disorders, St. Boniface Hospital Research, Winnipeg, MB, Canada
| | - Gordon Glazner
- 1Division of Neurodegenerative Disorders, St. Boniface Hospital Research, Winnipeg, MB, Canada.,2Department of Pharmacology & Therapeutics, University of Manitoba, Winnipeg, MB, Canada
| | - R Scott Turner
- 3Department of Neurology, Georgetown University, Washington, DC, USA
| | - Benedict C Albensi
- 1Division of Neurodegenerative Disorders, St. Boniface Hospital Research, Winnipeg, MB, Canada.,2Department of Pharmacology & Therapeutics, University of Manitoba, Winnipeg, MB, Canada
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159
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Silva CMS, Barros-Filho MC, Wong DVT, Mello JBH, Nobre LMS, Wanderley CWS, Lucetti LT, Muniz HA, Paiva IKD, Kuasne H, Ferreira DPP, Cunha MPSS, Hirth CG, Silva PGB, Sant’Ana RO, Souza MHLP, Quetz JS, Rogatto SR, Lima-Junior RCP. Circulating let-7e-5p, miR-106a-5p, miR-28-3p, and miR-542-5p as a Promising microRNA Signature for the Detection of Colorectal Cancer. Cancers (Basel) 2021; 13:cancers13071493. [PMID: 33804927 PMCID: PMC8037203 DOI: 10.3390/cancers13071493] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/16/2021] [Accepted: 03/22/2021] [Indexed: 02/06/2023] Open
Abstract
Simple Summary The detection of early-stage colorectal cancer increases the chance to prevent tumor progression and death by the disease. Colonoscopy is one sensitive screening test to detect malignant or potentially malignant lesions in the intestines. However, it has some disadvantages, including sedation requirements, increased risk of colon perforation, and bleeding. Circulating microRNAs (miRNAs) in plasma or serum from cancer patients have been investigated and described as potential diagnostic or prognostic markers. We conducted an miRNAs screening test in plasma samples from colorectal cancer patients and subjects without cancer, aiming to identify markers for the early detection of the disease. We identified and validated four miRNAs capable of distinguishing cancer from non-cancer cases. Our non-invasive diagnostic biomarkers presented high performance and are easily applicable to clinical practice. Abstract Colorectal cancer (CRC) is a disease with high incidence and mortality. Colonoscopy is a gold standard among tests used for CRC traceability. However, serious complications, such as colon perforation, may occur. Non-invasive diagnostic procedures are an unmet need. We aimed to identify a plasma microRNA (miRNA) signature for CRC detection. Plasma samples were obtained from subjects (n = 109) at different stages of colorectal carcinogenesis. The patients were stratified into a non-cancer (27 healthy volunteers, 17 patients with hyperplastic polyps, 24 with adenomas), and a cancer group (20 CRC and 21 metastatic CRC). miRNAs (381) were screened by TaqMan Low-Density Array. A classifier based on four differentially expressed miRNAs (miR-28-3p, let-7e-5p, miR-106a-5p, and miR-542-5p) was able to discriminate cancer versus non-cancer cases. The overexpression of these miRNAs was confirmed by RT-qPCR, and a cross-study validation step was implemented using eight data series retrieved from Gene Expression Omnibus (GEO). In addition, another external data validation using CRC surgical specimens from The Cancer Genome Atlas (TCGA) was carried out. The predictive model’s performance in the validation set was 76.5% accuracy, 59.4% sensitivity, and 86.8% specificity (area under the curve, AUC = 0.716). The employment of our model in the independent publicly available datasets confirmed a good discrimination performance in five of eight datasets (median AUC = 0.823). Applying this algorithm to the TCGA cohort, we found 99.5% accuracy, 99.7% sensitivity, and 90.9% specificity (AUC = 0.998) when the model was applied to solid colorectal tissues. Overall, we suggest a novel signature of four circulating miRNAs, i.e., miR-28-3p, let-7e-5p, miR-106a-5p, and miR-542-5p, as a predictive tool for the detection of CRC.
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Affiliation(s)
- Camila Meirelles S. Silva
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza 60430-270, Brazil; (L.M.S.N.); (C.W.S.W.); (L.T.L.); (H.A.M.); (I.K.D.P.)
- Correspondence: (C.M.S.S.); (S.R.R.); (R.C.P.L.-J.); Tel.: +55-85-3366-8585 (C.M.S.S. & R.C.P.L.-J.); +45-7940-6669 (S.R.R.)
| | - Mateus C. Barros-Filho
- International Research Center—CIPE, A.C. Camargo Cancer Center, Sao Paulo 01525-001, Brazil; (M.C.B.-F.); (H.K.)
- Department of Head and Neck Surgery, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo/LIM-28-São Paulo, Sao Paulo 05403-000, Brazil
| | - Deysi Viviana T. Wong
- Department of Pathology and Forensic Medicine, Faculty of Medicine, Federal University of Ceará, Fortaleza 60430-160, Brazil; or
- Haroldo Juaçaba Hospital—Cancer Institute of Ceará, Fortaleza 60430-230, Brazil; (M.P.S.S.C.); (C.G.H.); (P.G.B.S.); (R.O.S.); (J.S.Q.)
| | - Julia Bette H. Mello
- Molecular Carcinogenesis Program, Brazilian National Cancer Institute (INCA), Rio de Janeiro 20230-240, Brazil;
| | - Livia Maria S. Nobre
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza 60430-270, Brazil; (L.M.S.N.); (C.W.S.W.); (L.T.L.); (H.A.M.); (I.K.D.P.)
| | - Carlos Wagner S. Wanderley
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza 60430-270, Brazil; (L.M.S.N.); (C.W.S.W.); (L.T.L.); (H.A.M.); (I.K.D.P.)
| | - Larisse T. Lucetti
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza 60430-270, Brazil; (L.M.S.N.); (C.W.S.W.); (L.T.L.); (H.A.M.); (I.K.D.P.)
| | - Heitor A. Muniz
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza 60430-270, Brazil; (L.M.S.N.); (C.W.S.W.); (L.T.L.); (H.A.M.); (I.K.D.P.)
| | - Igor Kenned D. Paiva
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza 60430-270, Brazil; (L.M.S.N.); (C.W.S.W.); (L.T.L.); (H.A.M.); (I.K.D.P.)
| | - Hellen Kuasne
- International Research Center—CIPE, A.C. Camargo Cancer Center, Sao Paulo 01525-001, Brazil; (M.C.B.-F.); (H.K.)
| | | | - Maria Perpétuo S. S. Cunha
- Haroldo Juaçaba Hospital—Cancer Institute of Ceará, Fortaleza 60430-230, Brazil; (M.P.S.S.C.); (C.G.H.); (P.G.B.S.); (R.O.S.); (J.S.Q.)
| | - Carlos G. Hirth
- Haroldo Juaçaba Hospital—Cancer Institute of Ceará, Fortaleza 60430-230, Brazil; (M.P.S.S.C.); (C.G.H.); (P.G.B.S.); (R.O.S.); (J.S.Q.)
| | - Paulo Goberlânio B. Silva
- Haroldo Juaçaba Hospital—Cancer Institute of Ceará, Fortaleza 60430-230, Brazil; (M.P.S.S.C.); (C.G.H.); (P.G.B.S.); (R.O.S.); (J.S.Q.)
| | - Rosane O. Sant’Ana
- Haroldo Juaçaba Hospital—Cancer Institute of Ceará, Fortaleza 60430-230, Brazil; (M.P.S.S.C.); (C.G.H.); (P.G.B.S.); (R.O.S.); (J.S.Q.)
- School of Medicine, University of Fortaleza, Fortaleza 60811-905, Brazil
| | | | - Josiane S. Quetz
- Haroldo Juaçaba Hospital—Cancer Institute of Ceará, Fortaleza 60430-230, Brazil; (M.P.S.S.C.); (C.G.H.); (P.G.B.S.); (R.O.S.); (J.S.Q.)
| | - Silvia R. Rogatto
- Department of Clinical Genetics, University Hospital of Southern Denmark, 7100 Vejle, Denmark
- Institute of Regional Health Research, University of Southern Denmark, 5000 Odense, Denmark
- Danish Colorectal Cancer Center South, 7100 Vejle, Denmark
- Correspondence: (C.M.S.S.); (S.R.R.); (R.C.P.L.-J.); Tel.: +55-85-3366-8585 (C.M.S.S. & R.C.P.L.-J.); +45-7940-6669 (S.R.R.)
| | - Roberto César P. Lima-Junior
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza 60430-270, Brazil; (L.M.S.N.); (C.W.S.W.); (L.T.L.); (H.A.M.); (I.K.D.P.)
- Correspondence: (C.M.S.S.); (S.R.R.); (R.C.P.L.-J.); Tel.: +55-85-3366-8585 (C.M.S.S. & R.C.P.L.-J.); +45-7940-6669 (S.R.R.)
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160
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Epigenetic Regulation of Mitochondrial Quality Control Genes in Multiple Myeloma: A Sequenom MassARRAY Pilot Investigation on HMCLs. J Clin Med 2021; 10:jcm10061295. [PMID: 33801014 PMCID: PMC8004002 DOI: 10.3390/jcm10061295] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/15/2021] [Accepted: 03/18/2021] [Indexed: 01/11/2023] Open
Abstract
The mitochondrial quality control network includes several epigenetically-regulated genes involved in mitochondrial dynamics, mitophagy, and mitochondrial biogenesis under physiologic conditions. Dysregulated expression of such genes has been reported in various disease contexts, including cancer. However, their expression pattern and the possible underlying epigenetic modifications remain to be defined within plasma cell (PC) dyscrasias. Herein, we compared the mRNA expression of mitochondrial quality control genes from multiple myeloma, plasma cell leukemia patients and human myeloma cell lines (HMCLs) with healthy plasma cells; moreover, by applying the Sequenom MassARRAY EpiTYPER technology, we performed a pilot investigation of their CpG methylation status in HMCLs. Overall, the results provided indicate dysregulated expression of several mitochondrial network’s genes, and alteration of the CpG methylation profile, underscoring novel potential myeloma biomarkers deserving in-depth functional investigation in the future.
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161
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Skeie JM, Nishimura DY, Wang CL, Schmidt GA, Aldrich BT, Greiner MA. Mitophagy: An Emerging Target in Ocular Pathology. Invest Ophthalmol Vis Sci 2021; 62:22. [PMID: 33724294 PMCID: PMC7980050 DOI: 10.1167/iovs.62.3.22] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Mitochondrial function is essential for the viability of aerobic eukaryotic cells, as mitochondria provide energy through the generation of adenosine triphosphate (ATP), regulate cellular metabolism, provide redox balancing, participate in immune signaling, and can initiate apoptosis. Mitochondria are dynamic organelles that participate in a cyclical and ongoing process of regeneration and autophagy (clearance), termed mitophagy specifically for mitochondrial (macro)autophagy. An imbalance in mitochondrial function toward mitochondrial dysfunction can be catastrophic for cells and has been characterized in several common ophthalmic diseases. In this article, we review mitochondrial homeostasis in detail, focusing on the balance of mitochondrial dynamics including the processes of fission and fusion, and provide a description of the mechanisms involved in mitophagy. Furthermore, this article reviews investigations of ocular diseases with impaired mitophagy, including Fuchs endothelial corneal dystrophy, primary open-angle glaucoma, diabetic retinopathy, and age-related macular degeneration, as well as several primary mitochondrial diseases with ocular phenotypes that display impaired mitophagy, including mitochondrial encephalopathy lactic acidosis stroke, Leber hereditary optic neuropathy, and chronic progressive external ophthalmoplegia. The results of various studies using cell culture, animal, and human tissue models are presented and reflect a growing awareness of mitophagy impairment as an important feature of ophthalmic disease pathology. As this review indicates, it is imperative that mitophagy be investigated as a targetable mechanism in developing therapies for ocular diseases characterized by oxidative stress and mitochondrial dysfunction.
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Affiliation(s)
- Jessica M Skeie
- Department of Ophthalmology and Visual Sciences, University of Iowa Carver College of Medicine, Iowa City, Iowa, United States.,Iowa Lions Eye Bank, Coralville, Iowa, United States
| | - Darryl Y Nishimura
- Department of Ophthalmology and Visual Sciences, University of Iowa Carver College of Medicine, Iowa City, Iowa, United States.,Iowa Lions Eye Bank, Coralville, Iowa, United States
| | - Cheryl L Wang
- Department of Ophthalmology and Visual Sciences, University of Iowa Carver College of Medicine, Iowa City, Iowa, United States
| | | | - Benjamin T Aldrich
- Department of Ophthalmology and Visual Sciences, University of Iowa Carver College of Medicine, Iowa City, Iowa, United States.,Iowa Lions Eye Bank, Coralville, Iowa, United States
| | - Mark A Greiner
- Department of Ophthalmology and Visual Sciences, University of Iowa Carver College of Medicine, Iowa City, Iowa, United States.,Iowa Lions Eye Bank, Coralville, Iowa, United States
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Piao Z, Song L, Yao L, Zhang L, Lu Y. Schisandrin Restores the Amyloid β-Induced Impairments on Mitochondrial Function, Energy Metabolism, Biogenesis, and Dynamics in Rat Primary Hippocampal Neurons. Pharmacology 2021; 106:254-264. [PMID: 33691319 DOI: 10.1159/000507818] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 04/08/2020] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Schisandrin which is derived from Schisandra chinensis has shown multiple pharmacological effects on various diseases including Alzheimer's disease (AD). It is demonstrated that mitochondrial dysfunction plays an essential role in the pathogenesis of neurodegenerative disorders. OBJECTIVE Our study aims to investigate the effects of schisandrin on mitochondrial functions and metabolisms in primary hippocampal neurons. METHODS In our study, rat primary hippocampal neurons were isolated and treated with indicated dose of amyloid β1-42 (Aβ1-42) oligomer to establish a cell model of AD in vitro. Schisandrin (2 μg/mL) was further subjected to test its effects on mitochondrial function, energy metabolism, mitochondrial biogenesis, and dynamics in the Aβ1-42 oligomer-treated neurons. RESULTS AND CONCLUSIONS Our findings indicated that schisandrin significantly alleviated the Aβ1-42 oligomer-induced loss of mitochondrial membrane potential and impaired cytochrome c oxidase activity. Additionally, the opening of mitochondrial permeability transition pore and release of cytochrome c were highly restricted with schisandrin treatment. Alterations in cell viability, ATP production, citrate synthase activity, and the expressions of glycolysis-related enzymes demonstrated the relief of defective energy metabolism in Aβ-treated neurons after the treatment of schisandrin. For mitochondrial biogenesis, elevated expression of peroxisome proliferator-activated receptor γ coactivator along with promoted mitochondrial mass was found in schisandrin-treated cells. The imbalance in the cycle of fusion and fission was also remarkably restored by schisandrin. In summary, this study provides novel mechanisms for the protective effect of schisandrin on mitochondria-related functions.
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Affiliation(s)
- Zhongyuan Piao
- Department of Neurology, Huizhou Third People's Hospital, Guangzhou Medical University, Huizhou, China
| | - Lin Song
- School of Life Sciences, Huizhou University, Huizhou, China,
| | - Lifen Yao
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Limei Zhang
- Department of Obstetrics and Gynecology, Huizhou Third People's Hospital, Huizhou, China
| | - Yichan Lu
- Department of Chinese Medicine, Dalian Maternity and Child Health Care Hospital, Dalian, China
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163
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Mitochondria-targeted antioxidant, mito-TEMPO mitigates initiation phase of N-Nitrosodiethylamine-induced hepatocarcinogenesis. Mitochondrion 2021; 58:123-130. [PMID: 33711502 DOI: 10.1016/j.mito.2021.03.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 02/24/2021] [Accepted: 03/03/2021] [Indexed: 01/16/2023]
Abstract
Targeting mitochondrial oxidative stress during initial stages of hepatocarcinogenesis can be an effective and promising strategy to prevent hepatocellular carcinoma (HCC). In the present study, mitochondria targeted antioxidant, mito-TEMPO was administered to male BALB/c mice at a dosage 0.1 mg/kg b.w. (intraperitoneal) twice a week, followed by single N-Nitrosodiethylamine (NDEA) intraperitoneal injection (10 mg/kg b.w.). After 24 h of NDEA administration, animals were sacrificed, blood and liver tissue were collected. Liver injury markers, histoarchitecture, antioxidant defence status, mitochondrial reactive oxygen species (ROS), lipid peroxidation (LPO), mitochondrial dysfunction analysis, and mitochondrial membrane potential were investigated. Mito-TEMPO pre-treatment protected animals from the damaging effects of NDEA as observed by normalization of liver injury markers. NDEA metabolism resulted in a significantly increased intracellular and mitochondrial ROS generation with concomitant increase in LPO formation. The activity of mitochondrial complex I, complex II, malate dehydrogenase were significantly reduced and mitochondrial membrane potential was increased. Mito-TEMPO effectively scavenged NDEA-induced ROS generation and reduced LPO formation. A significant improvement was also observed in the activity of mitochondrial complex I, complex II, malate dehydrogenase and normalisation of mitochondrial membrane potential. Results suggested that mito-TEMPO had significant impact on the initiation phase of hepatocarcinogensis which could be one of the reason for its reported chemopreventive effect.
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164
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Mondet J, Lo Presti C, Chevalier S, Bertrand A, Tondeur S, Blanchet S, Mc Leer A, Pernet-Gallay K, Mossuz P. Mitochondria in human acute myeloid leukemia cell lines have ultrastructural alterations linked to deregulation of their respiratory profiles. Exp Hematol 2021; 98:53-62.e3. [PMID: 33689800 DOI: 10.1016/j.exphem.2021.03.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 02/16/2021] [Accepted: 03/02/2021] [Indexed: 11/19/2022]
Abstract
Mitochondria not only are essential for cell metabolism and energy supply but are also engaged in calcium homeostasis and reactive oxygen species generation and play a key role in apoptosis. As a consequence, functional mitochondrial disorders are involved in many human cancers including acute myeloid leukemia (AML). However, very few data are available on the deregulation of their number and/or shape in leukemic cells, despite the evident link between ultrastructure and function. In this context, we analyzed the ultrastructural mitochondrial parameters (number per cell, mitochondria area, number of cristae/mitochondria, cristal thickness) in five leukemia cell lines (HEL, HL60, K562, KG1, and OCI-AML3) together with the functional assay of their respiratory profile. First, we describe significant differences in basal respiration, maximal respiration, ATP production, and spare respiratory capacity between our cell lines, confirming the various respiratory profiles among leukemia subtypes. Second, we highlight that these variations are obviously associated with significant interleukemia heterogeneity of the number and/or shape of mitochondria. For instance, KG1, characterized by the smallest number of mitochondria together with reduced cristal diameter, had a particularly deficient respiratory profile. In comparison, the HEL and K562 cell lines, both with high respiratory profiles, harbored the largest number of mitochondria/cells with high cristal diameters. Moreover, we report that K562, carrying the ASXL1 mutation, presents significant mitochondria-endoplasmic reticulum deficiency reflected by decreases in the numbers of matrix granules and mitochondria-associated endoplasmic reticulum membrane (MAM) and mitochondrial-derived vesicle (MDV) precursors, which are implicated in the regulatory pathways of cell mortality via the processes of mitophagy and calcium homeostasis. Contrarily, HL60 carried high levels of matrix granules and MAMs and had a higher sensitivity to drugs targeting mitochondria (rotenone/antimycin). We confirm the implication of ASXL1 mutation in this mitochondria dysregulation through the study of transcript expression (from 415 patients with public data) involved in three mitochondrial pathways: (1) endoplasmic reticulum-mitochondria contacts (MAMs), (2) matrix granule homeostasis, and (3) MDV precursor production. Our study offers new and original data on mitochondria structural alterations linked to deregulation of respiration profiles in AMLs and some genetic characteristics, suggesting that modifications of mitochondrial shape and/or number in leukemic cells participate in chemoresistance and could be a targeted mechanism to regulate their proliferative potential.
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Affiliation(s)
- Julie Mondet
- Molecular Pathology Laboratory, Grenoble Alpes University Hospital, Grenoble, France; UGA/INSERM U1209/CNRS 5309, Institute for Advanced Biosciences, Grenoble, France.
| | - Caroline Lo Presti
- UGA/INSERM U1209/CNRS 5309, Institute for Advanced Biosciences, Grenoble, France; Laboratory of Hematology, Grenoble Alpes University Hospital, Grenoble, France
| | - Simon Chevalier
- UGA/INSERM U1209/CNRS 5309, Institute for Advanced Biosciences, Grenoble, France; Laboratory of Hematology, Grenoble Alpes University Hospital, Grenoble, France
| | - Anne Bertrand
- UGA/INSERM U1216, Grenoble Institute of Neurosciences, Grenoble, France
| | - Sylvie Tondeur
- Laboratory of Hematology, Grenoble Alpes University Hospital, Grenoble, France
| | - Sandrine Blanchet
- UGA/INSERM U1209/CNRS 5309, Institute for Advanced Biosciences, Grenoble, France
| | - Anne Mc Leer
- Molecular Pathology Laboratory, Grenoble Alpes University Hospital, Grenoble, France; UGA/INSERM U1209/CNRS 5309, Institute for Advanced Biosciences, Grenoble, France
| | | | - Pascal Mossuz
- UGA/INSERM U1209/CNRS 5309, Institute for Advanced Biosciences, Grenoble, France; Laboratory of Hematology, Grenoble Alpes University Hospital, Grenoble, France
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Mechanisms of Cisplatin in Combination with Repurposed Drugs against Human Endometrial Carcinoma Cells. Life (Basel) 2021; 11:life11020160. [PMID: 33669781 PMCID: PMC7922822 DOI: 10.3390/life11020160] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/10/2021] [Accepted: 02/16/2021] [Indexed: 12/18/2022] Open
Abstract
Although endometrial carcinoma is one of the most common gynecological malignancies worldwide, its precise etiology remains unknown. Moreover, no novel adjuvant and/or targeted therapies are currently being developed to achieve greater efficacy for endometrial cancer patients who develop chemotherapeutic drug resistance. In this study, we used three human endometrial cancer cell lines, RL95-2, HEC-1-A, and KLE, to investigate the responsiveness of cisplatin alone and in combination with potential repurposed drugs. We first found that RL95-2 cells were more sensitive to cisplatin than HEC-1-A or KLE cells. The cytotoxicity of cisplatin in RL95-2 cells may reflect its ability to perturb the cell cycle, reactive oxygen species production and autophagy as well as to induce senescence and DNA damage. Similar effects, although not DNA damage, were also observed in HEC-1-A and KLE cells. In addition, downregulation of p53 and/or cyclin D1 may also impact the responsiveness of HEC-1-A and KLE cells to cisplatin. We also observed that resveratrol, trichostatin A (TSA), caffeine, or digoxin increased the apoptotic process of cisplatin toward RL95-2 cells, while amiodarone or TSA increased its apoptotic process toward HEC-1-A cells. The combination index supported the assertion that the combination of cisplatin with caffeine, amiodarone, resveratrol, metformin, digoxin, or TSA increases the cytotoxicity of cisplatin in HEC-1-A cells. These findings suggest potential strategies for enhancing the efficacy of cisplatin to overcome drug resistance in endometrial carcinoma patients.
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Song Y, Wang J, Sun J, Chen X, Shi J, Wu Z, Yu D, Zhang F, Wang Z. Screening of Potential Biomarkers for Gastric Cancer with Diagnostic Value Using Label-free Global Proteome Analysis. GENOMICS PROTEOMICS & BIOINFORMATICS 2021; 18:679-695. [PMID: 33607292 PMCID: PMC8377014 DOI: 10.1016/j.gpb.2020.06.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 03/25/2020] [Accepted: 08/15/2020] [Indexed: 01/14/2023]
Abstract
Gastric cancer (GC) is known as a top malignant type of tumors worldwide. Despite the recent decrease in mortality rates, the prognosis remains poor. Therefore, it is necessary to find novel biomarkers with early diagnostic value for GC. In this study, we present a large-scale proteomic analysis of 30 GC tissues and 30 matched healthy tissues using label-free global proteome profiling. Our results identified 537 differentially expressed proteins, including 280 upregulated and 257 downregulated proteins. The ingenuity pathway analysis (IPA) results indicated that the sirtuin signaling pathway was the most activated pathway in GC tissues whereas oxidative phosphorylation was the most inhibited. Moreover, the most activated molecular function was cellular movement, including tissue invasion by tumor cell lines. Based on IPA results, 15 hub proteins were screened. Using the receiver operating characteristic curve, most of hub proteins showed a high diagnostic power in distinguishing between tumors and healthy controls. A four-protein (ATP5B-ATP5O-NDUFB4-NDUFB8) diagnostic signature was built using a random forest model. The area under the curve (AUC) values of this model were 0.996 and 0.886 for the training and testing sets, respectively, suggesting that the four-protein signature has a high diagnostic power. This signature was further tested with independent datasets using plasma enzyme-linked immune sorbent assays, resulting in an AUC value of 0.778 for distinguishing GC tissues from healthy controls, and using immunohistochemical tissue microarray analysis, resulting in an AUC value of 0.805. In conclusion, this study identifies potential biomarkers and improves our understanding of the pathogenesis, providing novel therapeutic targets for GC.
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Affiliation(s)
- Yongxi Song
- Department of Surgical Oncology and General Surgery, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, The First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - Jun Wang
- Department of Surgical Oncology and General Surgery, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, The First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - Jingxu Sun
- Department of Surgical Oncology and General Surgery, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, The First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - Xiaowan Chen
- Department of Surgical Oncology and General Surgery, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, The First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - Jinxin Shi
- Department of Surgical Oncology and General Surgery, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, The First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - Zhonghua Wu
- Department of Surgical Oncology and General Surgery, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, The First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - Dehao Yu
- Department of Surgical Oncology and General Surgery, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, The First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - Fei Zhang
- Department of Surgical Oncology and General Surgery, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, The First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - Zhenning Wang
- Department of Surgical Oncology and General Surgery, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, The First Affiliated Hospital of China Medical University, Shenyang 110001, China.
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Qiu M, Liu J, Su Y, Liu J, Wu C, Zhao B. Aloperine Induces Apoptosis by a Reactive Oxygen Species Activation Mechanism in Human Ovarian Cancer Cells. Protein Pept Lett 2021; 27:860-869. [PMID: 32196436 DOI: 10.2174/0929866527666200320094313] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 02/01/2020] [Accepted: 02/01/2020] [Indexed: 12/28/2022]
Abstract
BACKGROUND Ovarian cancer is the most lethal gynecologic malignancy worldwide with poor prognosis owing to chemotherapy resistance and cancer relapse. Hence, there is an urgent need to develop novel anticancer agents against ovarian cancer. OBJECTIVE The aim of this research is to investigate the possible anticancer activity of aloperine, an active ingredient from a traditional Chinese medicine Sophora alopecuroides, and to explore the possible Reactive Oxygen Species (ROS)-related mechanism. METHODS Cell viability, cytotoxicity, apoptosis, ROS generation, and oxidant stress indicators were analyzed. RESULTS Our results demonstrated that aloperine significantly induced inhibition of cell viability, promoted cytotoxicity and mitochondrial-related apoptosis, and increased ROS generation in ovarian cancer cells. Furthermore, the antioxidant α-lipoic acid reversed apoptosis in aloperinetreated cells. In addition, we identified hydrogen peroxide as the main type of ROS, and the antioxidant catalase suppressed the apoptotic inducing effect of aloperine whereas hydrogen peroxide supplement exacerbated the effect of aloperine in ovarian cancer cells. CONCLUSION Taken together, our results indicated that aloperine could exert anti-ovarian cancer cell activity through a reactive oxygen species activation mechanism and suggested aloperine as a potential agent against ovarian cancer.
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Affiliation(s)
- Mingning Qiu
- College of Veterinary Medicine, Northwest A&F University, Yangling, China.,Laboratory of Urology, Guangdong Medical University, Zhanjiang, China
| | - Jie Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling, China.,Laboratory of Urology, Guangdong Medical University, Zhanjiang, China
| | - Yongxia Su
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Jianjun Liu
- Laboratory of Urology, Guangdong Medical University, Zhanjiang, China
| | - Chenchen Wu
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Baoyu Zhao
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
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168
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Praharaj PP, Patro BS, Bhutia SK. Dysregulation of mitophagy and mitochondrial homeostasis in cancer stem cells: Novel mechanism for anti-cancer stem cell-targeted cancer therapy. Br J Pharmacol 2021; 179:5015-5035. [PMID: 33527371 DOI: 10.1111/bph.15401] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 01/11/2021] [Accepted: 01/28/2021] [Indexed: 12/13/2022] Open
Abstract
Despite the potential of cancer medicine, cancer stem cells (CSCs) associated with chemoresistance and disease recurrence are the significant challenges currently opposing the efficacy of available cancer treatment options. Mitochondrial dynamics involving the fission-fusion cycle and mitophagy are the major contributing factors to better adaptation, enabling CSCs to survive and grow better under tumour micro-environment-associated stress. Moreover, mitophagy is balanced with mitochondrial biogenesis to maintain mitochondrial homeostasis in CSCs, which are necessary for the growth and maintenance of CSCs and regulate metabolic switching from glycolysis to oxidative phosphorylation. In this review, we discuss different aspects of mitochondrial dynamics, mitophagy, and mitochondrial homeostasis and their effects on modulating CSCs behaviour during cancer development. Moreover, the efficacy of pharmacological targeting of these cellular processes using anti-CSC drugs in combination with currently available chemotherapeutic drugs improves the patient's survival of aggressive cancer types.
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Affiliation(s)
- Prakash Priyadarshi Praharaj
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology Rourkela, Rourkela, Odisha, 769008, India
| | | | - Sujit Kumar Bhutia
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology Rourkela, Rourkela, Odisha, 769008, India
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169
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Luo C, Sun H, Peng J, Gao C, Bao L, Ji R, Zhang C, Zhu W, Jin Y. Rosmarinic acid exerts an antagonistic effect on nonalcoholic fatty liver disease by regulating the YAP1/TAZ-PPARγ/PGC-1α signaling pathway. Phytother Res 2021; 35:1010-1022. [PMID: 32914480 DOI: 10.1002/ptr.6865] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 07/31/2020] [Accepted: 08/16/2020] [Indexed: 02/06/2023]
Abstract
Rosmarinic acid (RA) is a water-soluble phenolic compound extracted from Boraginaceae and Lamiaceae. This study was designed to investigate the role and mechanism of action of RA in improving nonalcoholic fatty liver disease (NAFLD). Male SD rats maintained on a high fat diet and L02 cells stimulated with oleic acid were treated with RA. Our results showed that RA significantly reduced total cholesterol, triglycerides, low-density lipoprotein cholesterol, alanine aminotransferase, aspartate aminotransferase, and malondialdehyde levels and increased high-density lipoprotein cholesterol, superoxide dismutase and adenosine triphosphate levels both in vivo and in vitro. Hematoxylin and eosin staining and oil red O staining showed that RA had a good lipid-lowering effect and substantial protective effects on liver injury. Transmission electron microscopy and JC-1 fluorescence results showed that RA could improve mitochondrial damage in hepatocytes. Additionally, flow cytometry results indicated that RA inhibited ROS generation and apoptosis in L02 cells. The impaired hepatocytes were restored by using RA in NAFLD models characterized by down-regulating YAP1 and TAZ, meanwhile up-regulating PPARγ and PGC-1α. When YAP1 was over-expressed, RA reduced the expression of YAP1; however, the action of RA was significantly blocked by silencing YAP1. The experimental results indicated that RA markedly alleviated NAFLD by repairing mitochondrial damage and regulating the YAP1/TAZ-PPARγ/PGC-1α signaling pathway.
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Affiliation(s)
- Chunxu Luo
- College of Pharmacy, Dalian Medical University, Dalian, China
| | - Huijun Sun
- College of Pharmacy, Dalian Medical University, Dalian, China
- Key Laboratory for Basic and Applied Research on Pharmacodynamic Substances of Traditional Chinese Medicine of Liaoning Province, Dalian Medical University, Dalian, China
| | - Jinyong Peng
- College of Pharmacy, Dalian Medical University, Dalian, China
- Key Laboratory for Basic and Applied Research on Pharmacodynamic Substances of Traditional Chinese Medicine of Liaoning Province, Dalian Medical University, Dalian, China
| | - Cong Gao
- College of Pharmacy, Dalian Medical University, Dalian, China
| | - Liuchi Bao
- College of Pharmacy, Dalian Medical University, Dalian, China
| | - Renpeng Ji
- College of Pharmacy, Dalian Medical University, Dalian, China
| | - Chi Zhang
- College of Pharmacy, Dalian Medical University, Dalian, China
| | - Wenhan Zhu
- College of Pharmacy, Dalian Medical University, Dalian, China
| | - Yue Jin
- College of Pharmacy, Dalian Medical University, Dalian, China
- Key Laboratory for Basic and Applied Research on Pharmacodynamic Substances of Traditional Chinese Medicine of Liaoning Province, Dalian Medical University, Dalian, China
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170
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Poiani SB, Pereira MC, Bueno OC. Transmission Electron Microscopy as a Tool to Study the Toxicological Effects of Thiamethoxam in Workers of Atta sexdens (Myrmicinae, Attini). MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2021; 27:170-186. [PMID: 33280633 DOI: 10.1017/s1431927620024733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Thiamethoxam is a neonicotinoid that has been used to control insect pests. The literature reports a few behavioral studies evaluating the toxic effect of thiamethoxam in ants; however, there are scarce studies at the cellular level. The present research evaluated the effects of thiamethoxam in labial (LG) and mandibular glands (MG), fat bodies (FB), and Malpighian tubules (MT) of workers of Atta sexdens, using transmission electron microscopy. The duct and secretory cells of LG were profoundly affected, then the production of saliva can be compromised, as well as its quality and subsequent use. In MG, reservoir and canaliculi cells presented slight alterations; however, MG secretory cells presented vacuoles containing lamellar structures, increased lipid production, and a large amount of mitochondria, which may lead to organ's malfunctioning. The FB cell alterations do not seem enough to cause significant changes that lead to cell death. Prominent changes in MT, such as loss of the electron-dense concentric ring, increased smooth endoplasmic reticulum, loss of basal infolds, vacuoles containing mineralized granules, and lamellar structures associated with mitochondria, suggest that their excretory function is compromised. In conclusion, thiamethoxam acts not only in the nervous system but also contributes to systemic toxicity on the target organism.
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Affiliation(s)
- Silvana B Poiani
- Department of Biology, Sao Paulo State University (UNESP), Institute of Biosciences - Campus Rio Claro, Center of Study of Social Insects, Avenida 24A, 1515, Bela Vista, Rio Claro, SP13506-900, Brazil
| | - Mayara C Pereira
- Department of Biology, Sao Paulo State University (UNESP), Institute of Biosciences - Campus Rio Claro, Center of Study of Social Insects, Avenida 24A, 1515, Bela Vista, Rio Claro, SP13506-900, Brazil
| | - Odair C Bueno
- Department of Biology, Sao Paulo State University (UNESP), Institute of Biosciences - Campus Rio Claro, Center of Study of Social Insects, Avenida 24A, 1515, Bela Vista, Rio Claro, SP13506-900, Brazil
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171
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Zhang X, Su Q, Zhou J, Yang Z, Liu Z, Ji L, Gao H, Jiang G. To betray or to fight? The dual identity of the mitochondria in cancer. Future Oncol 2021; 17:723-743. [DOI: 10.2217/fon-2020-0362] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Mitochondria are highly dynamic organelles that provide energy for oxidative phosphorylation in cells. Equally, they are the major sites for the metabolism of amino acids, lipids and iron. When cells become cancerous, the morphology, cellular location and metabolic mode of the mitochondria change accordingly. These mitochondrial changes can have two opposing effects on cancer: procancer and anticancer effects. Specifically, mitochondria play roles in the fight against cancer by participating in processes such as ferroptosis, mitophagy and antitumor immunity. Contrastingly, cancer cells can also enslave mitochondria to give them the conditions necessary for growth and metastasis. Moreover, through mitochondria, cancer cells can escape from immune surveillance, resulting in their immune escape and enhanced malignant transformation ability. At present, cancer-related studies of mitochondria are one-sided; therefore, we aim to provide a comprehensive understanding by systematically reviewing the two-sided cancer-related properties of mitochondria. Mitochondrial-targeted drugs are gradually emerging and showing significant advantages in cancer treatment; thus, our in-depth exploration of mitochondria in cancer will help to provide theoretical support for the future provision of efficient and low-toxicity cancer treatments.
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Affiliation(s)
- Xiaoyi Zhang
- Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, 266021, PR China
| | - Quanzhong Su
- Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, 266021, PR China
| | - Ji Zhou
- Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, 266021, PR China
| | - Zhihong Yang
- Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, 266021, PR China
| | - Zhantao Liu
- Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, 266021, PR China
| | - Lixia Ji
- Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, 266021, PR China
| | - Hui Gao
- Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, 266021, PR China
| | - Guohui Jiang
- Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, 266021, PR China
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172
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Frantz NL, Brakoniecki G, Chen D, Proshlyakov DA. Assessment of the Maximal Activity of Complex IV in the Inner Mitochondrial Membrane by Tandem Electrochemistry and Respirometry. Anal Chem 2021; 93:1360-1368. [PMID: 33319559 PMCID: PMC8772154 DOI: 10.1021/acs.analchem.0c02910] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Assessment of activities of mitochondrial electron transport enzymes is important for understanding mechanisms of metabolic diseases, but structural organization of mitochondria and low sample availability pose distinctive challenges for in situ functional studies. We report the development of a tandem microfluidic respirometer that simultaneously tracks both the reduction of mediators on the electrode and the ensuing reduction of O2 by complex IV in the inner mitochondrial membrane. The response time of O2 consumption to multiple alternating potential steps is of approximately 10 s for a 150 μm-thick sample. Steady O2 depletion shows good quantitative correlation with the supplied electric charge, Pearson's r = 0.994. Reduction of mediators on biocompatible gold electrodes modified with carbon ink or fumed silica can compete with the oxidation of mediators by mitochondria, yielding an overall respiratory activity comparable to that upon chemical reduction by ascorbate. The dependence of O2 consumption on mediator and mitochondrial suspension concentrations shows that mass transport between the electrode and mitochondria does not limit biological activity of the latter. The mediated electrochemical approach is validated by the radiometric measurements of simulated changes in the intrinsic mitochondrial activity upon partial inhibition of complex IV by NaN3. This approach enables the development of O2-independent, biomimetic electrochemical assays narrowly targeting components of the electron transport chains in their native environments.
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Affiliation(s)
- Nathan L Frantz
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824-1322, United States
| | - Gabrielle Brakoniecki
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824-1322, United States
| | - Dawei Chen
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824-1322, United States
| | - Denis A Proshlyakov
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824-1322, United States
- Department of Physiology, Michigan State University, 567 Wilson Rd, East Lansing, Michigan 48824-6405, United States
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173
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Schank M, Zhao J, Moorman JP, Yao ZQ. The Impact of HIV- and ART-Induced Mitochondrial Dysfunction in Cellular Senescence and Aging. Cells 2021; 10:cells10010174. [PMID: 33467074 PMCID: PMC7830696 DOI: 10.3390/cells10010174] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 01/12/2021] [Accepted: 01/14/2021] [Indexed: 02/07/2023] Open
Abstract
According to the WHO, 38 million individuals were living with human immunodeficiency virus (HIV), 25.4 million of which were using antiretroviral therapy (ART) at the end of 2019. Despite ART-mediated suppression of viral replication, ART is not a cure and is associated with viral persistence, residual inflammation, and metabolic disturbances. Indeed, due to the presence of viral reservoirs, lifelong ART therapy is required to control viremia and prevent disease progression into acquired immune deficiency syndrome (AIDS). Successful ART treatment allows people living with HIV (PLHIV) to achieve a similar life expectancy to uninfected individuals. However, recent studies have illustrated the presence of increased comorbidities, such as accelerated, premature immune aging, in ART-controlled PLHIV compared to uninfected individuals. Studies suggest that both HIV-infection and ART-treatment lead to mitochondrial dysfunction, ultimately resulting in cellular exhaustion, senescence, and apoptosis. Since mitochondria are essential cellular organelles for energy homeostasis and cellular metabolism, their compromise leads to decreased oxidative phosphorylation (OXPHOS), ATP synthesis, gluconeogenesis, and beta-oxidation, abnormal cell homeostasis, increased oxidative stress, depolarization of the mitochondrial membrane potential, and upregulation of mitochondrial DNA mutations and cellular apoptosis. The progressive mitochondrial damage induced by HIV-infection and ART-treatment likely contributes to accelerated aging, senescence, and cellular dysfunction in PLHIV. This review discusses the connections between mitochondrial compromise and cellular dysfunction associated with HIV- and ART-induced toxicities, providing new insights into how HIV and current ART directly impact mitochondrial functions and contribute to cellular senescence and aging in PLHIV. Identifying this nexus and potential mechanisms may be beneficial in developing improved therapeutics for treating PLHIV.
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Affiliation(s)
- Madison Schank
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA; (M.S.); (J.Z.); (J.P.M.)
- Division of Infectious, Inflammatory and Immunologic Diseases, Department of Internal Medicine, Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA
| | - Juan Zhao
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA; (M.S.); (J.Z.); (J.P.M.)
- Division of Infectious, Inflammatory and Immunologic Diseases, Department of Internal Medicine, Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA
| | - Jonathan P. Moorman
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA; (M.S.); (J.Z.); (J.P.M.)
- Division of Infectious, Inflammatory and Immunologic Diseases, Department of Internal Medicine, Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA
- Hepatitis (HCV/HBV/HIV) Program, James H. Quillen VA Medical Center, Department of Veterans Affairs, Johnson City, TN 37614, USA
| | - Zhi Q. Yao
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA; (M.S.); (J.Z.); (J.P.M.)
- Division of Infectious, Inflammatory and Immunologic Diseases, Department of Internal Medicine, Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA
- Hepatitis (HCV/HBV/HIV) Program, James H. Quillen VA Medical Center, Department of Veterans Affairs, Johnson City, TN 37614, USA
- Correspondence: ; Tel.: +423-439-8063; Fax: +423-439-7010
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174
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Rogov AG, Goleva TN, Epremyan KK, Kireev II, Zvyagilskaya RA. Propagation of Mitochondria-Derived Reactive Oxygen Species within the Dipodascus magnusii Cells. Antioxidants (Basel) 2021; 10:antiox10010120. [PMID: 33467672 PMCID: PMC7830518 DOI: 10.3390/antiox10010120] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 12/04/2022] Open
Abstract
Mitochondria are considered to be the main source of reactive oxygen species (ROS) in the cell. It was shown that in cardiac myocytes exposed to excessive oxidative stress, ROS-induced ROS release is triggered. However, cardiac myocytes have a network of densely packed organelles that do not move, which is not typical for the majority of eukaryotic cells. The purpose of this study was to trace the spatiotemporal development (propagation) of prooxidant-induced oxidative stress and its interplay with mitochondrial dynamics. We used Dipodascus magnusii yeast cells as a model, as they have advantages over other models, including a uniquely large size, mitochondria that are easy to visualize and freely moving, an ability to vigorously grow on well-defined low-cost substrates, and high responsibility. It was shown that prooxidant-induced oxidative stress was initiated in mitochondria, far preceding the appearance of generalized oxidative stress in the whole cell. For yeasts, these findings were obtained for the first time. Preincubation of yeast cells with SkQ1, a mitochondria-addressed antioxidant, substantially diminished production of mitochondrial ROS, while only slightly alleviating the generalized oxidative stress. This was expected, but had not yet been shown. Importantly, mitochondrial fragmentation was found to be primarily induced by mitochondrial ROS preceding the generalized oxidative stress development.
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Affiliation(s)
- Anton G. Rogov
- Bach Institute of Biochemistry, Federal Research Center “Fundamentals of Biotechnology” of the Russian Academy of Sciences 33, bld. 2 Leninsky Ave., Moscow 119071, Russia; (A.G.R.); (T.N.G.); (K.K.E.)
| | - Tatiana N. Goleva
- Bach Institute of Biochemistry, Federal Research Center “Fundamentals of Biotechnology” of the Russian Academy of Sciences 33, bld. 2 Leninsky Ave., Moscow 119071, Russia; (A.G.R.); (T.N.G.); (K.K.E.)
| | - Khoren K. Epremyan
- Bach Institute of Biochemistry, Federal Research Center “Fundamentals of Biotechnology” of the Russian Academy of Sciences 33, bld. 2 Leninsky Ave., Moscow 119071, Russia; (A.G.R.); (T.N.G.); (K.K.E.)
| | - Igor I. Kireev
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Vorobyevy Gory 1, Moscow 119992, Russia;
| | - Renata A. Zvyagilskaya
- Bach Institute of Biochemistry, Federal Research Center “Fundamentals of Biotechnology” of the Russian Academy of Sciences 33, bld. 2 Leninsky Ave., Moscow 119071, Russia; (A.G.R.); (T.N.G.); (K.K.E.)
- Correspondence:
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175
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Bressan C, Saghatelyan A. Intrinsic Mechanisms Regulating Neuronal Migration in the Postnatal Brain. Front Cell Neurosci 2021; 14:620379. [PMID: 33519385 PMCID: PMC7838331 DOI: 10.3389/fncel.2020.620379] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 12/08/2020] [Indexed: 01/19/2023] Open
Abstract
Neuronal migration is a fundamental brain development process that allows cells to move from their birthplaces to their sites of integration. Although neuronal migration largely ceases during embryonic and early postnatal development, neuroblasts continue to be produced and to migrate to a few regions of the adult brain such as the dentate gyrus and the subventricular zone (SVZ). In the SVZ, a large number of neuroblasts migrate into the olfactory bulb (OB) along the rostral migratory stream (RMS). Neuroblasts migrate in chains in a tightly organized micro-environment composed of astrocytes that ensheath the chains of neuroblasts and regulate their migration; the blood vessels that are used by neuroblasts as a physical scaffold and a source of molecular factors; and axons that modulate neuronal migration. In addition to diverse sets of extrinsic micro-environmental cues, long-distance neuronal migration involves a number of intrinsic mechanisms, including membrane and cytoskeleton remodeling, Ca2+ signaling, mitochondria dynamics, energy consumption, and autophagy. All these mechanisms are required to cope with the different micro-environment signals and maintain cellular homeostasis in order to sustain the proper dynamics of migrating neuroblasts and their faithful arrival in the target regions. Neuroblasts in the postnatal brain not only migrate into the OB but may also deviate from their normal path to migrate to a site of injury induced by a stroke or by certain neurodegenerative disorders. In this review, we will focus on the intrinsic mechanisms that regulate long-distance neuroblast migration in the adult brain and on how these pathways may be modulated to control the recruitment of neuroblasts to damaged/diseased brain areas.
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Affiliation(s)
- Cedric Bressan
- CERVO Brain Research Center, Quebec City, QC, Canada.,Department of Psychiatry and Neuroscience, Université Laval, Quebec City, QC, Canada
| | - Armen Saghatelyan
- CERVO Brain Research Center, Quebec City, QC, Canada.,Department of Psychiatry and Neuroscience, Université Laval, Quebec City, QC, Canada
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176
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Grieco JP, Allen ME, Perry JB, Wang Y, Song Y, Rohani A, Compton SLE, Smyth JW, Swami NS, Brown DA, Schmelz EM. Progression-Mediated Changes in Mitochondrial Morphology Promotes Adaptation to Hypoxic Peritoneal Conditions in Serous Ovarian Cancer. Front Oncol 2021; 10:600113. [PMID: 33520711 PMCID: PMC7838066 DOI: 10.3389/fonc.2020.600113] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 11/26/2020] [Indexed: 12/11/2022] Open
Abstract
Ovarian cancer is the deadliest gynecological cancer in women, with a survival rate of less than 30% when the cancer has spread throughout the peritoneal cavity. Aggregation of cancer cells increases their viability and metastatic potential; however, there are limited studies that correlate these functional changes to specific phenotypic alterations. In this study, we investigated changes in mitochondrial morphology and dynamics during malignant transition using our MOSE cell model for progressive serous ovarian cancer. Mitochondrial morphology was changed with increasing malignancy from a filamentous network to single, enlarged organelles due to an imbalance of mitochondrial dynamic proteins (fusion: MFN1/OPA1, fission: DRP1/FIS1). These phenotypic alterations aided the adaptation to hypoxia through the promotion of autophagy and were accompanied by changes in the mitochondrial ultrastructure, mitochondrial membrane potential, and the regulation of reactive oxygen species (ROS) levels. The tumor-initiating cells increased mitochondrial fragmentation after aggregation and exposure to hypoxia that correlated well with our previously observed reduced growth and respiration in spheroids, suggesting that these alterations promote viability in non-permissive conditions. Our identification of such mitochondrial phenotypic changes in malignancy provides a model in which to identify targets for interventions aimed at suppressing metastases.
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Affiliation(s)
- Joseph P Grieco
- Graduate Program in Translational Biology, Medicine, and Health, Virginia Tech, Blacksburg, VA, United States
| | - Mitchell E Allen
- Department of Human Nutrition, Foods and Exercise, Virginia Tech, Blacksburg, VA, United States
| | - Justin B Perry
- Department of Human Nutrition, Foods and Exercise, Virginia Tech, Blacksburg, VA, United States
| | - Yao Wang
- Department of Human Nutrition, Foods and Exercise, Virginia Tech, Blacksburg, VA, United States
| | - Yipei Song
- Electrical and Computer Engineering, University of Virginia, Charlottesville, VA, United States
| | - Ali Rohani
- Electrical and Computer Engineering, University of Virginia, Charlottesville, VA, United States
| | - Stephanie L E Compton
- Department of Human Nutrition, Foods and Exercise, Virginia Tech, Blacksburg, VA, United States
| | - James W Smyth
- Fralin Biomedical Research Institute at Virginia Tech Carillion (VTC), Roanoke, VA, United States.,Department of Biological Sciences, Virginia Tech, Blacksburg, VA, United States.,Virginia Tech Carilion School of Medicine, Roanoke, VA, United States
| | - Nathan S Swami
- Electrical and Computer Engineering, University of Virginia, Charlottesville, VA, United States
| | - David A Brown
- Department of Human Nutrition, Foods and Exercise, Virginia Tech, Blacksburg, VA, United States
| | - Eva M Schmelz
- Department of Human Nutrition, Foods and Exercise, Virginia Tech, Blacksburg, VA, United States
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177
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Zhao S, Cheng L, Shi Y, Li J, Yun Q, Yang H. MIEF2 reprograms lipid metabolism to drive progression of ovarian cancer through ROS/AKT/mTOR signaling pathway. Cell Death Dis 2021; 12:18. [PMID: 33414447 PMCID: PMC7791105 DOI: 10.1038/s41419-020-03336-6] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 12/10/2020] [Accepted: 12/11/2020] [Indexed: 12/11/2022]
Abstract
MIEF2 (mitochondrial elongation factor 2) is one of the key regulators of mitochondrial fission. Bioinformatics analysis indicated that high expression of MIEF2 predicted a poor prognosis in ovarian cancer patients. However, the relationship between MIEF2 and aberrant lipid metabolism in OC remains elusive. In this study, we demonstrated that MIEF2 significantly promoted lipid synthesis, while has no significant effect on fatty acid uptake and oxidation in OC cells. MIEF2 enhanced de novo fatty acid synthesis through up-regulating the expression of sterol regulatory element binding protein 1 (SREBP1) and its transcriptional target lipogenic genes ACC1, FASN and SCD1. Meanwhile, MIEF2-promoted cholesterol biosynthesis through up-regulating the expression of sterol regulatory element binding protein 2 (SREBP2) and its transcriptional target cholesterol biosynthesis genes HMGCS1 and HMGCR. Mechanistically, increased mitochondrial reactive oxygen species (ROS) production and subsequently activation of AKT/mTOR signaling pathway was found to be involved in the up-regulation of SREBP1 and SREBP2 in OC cells. Moreover, cell growth and metastasis assays indicated that MIEF2-regulated fatty acid synthesis and cholesterol biosynthesis played a critical role in the progression of OC. Taken together, our findings indicate that MIEF2 is a critical regulator of lipid synthesis in OC, which provides a strong line of evidence for this molecule to serve as a drug target in the treatment of this malignancy.
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Affiliation(s)
- Shuhua Zhao
- Department of Gynaecology and Obstetrics, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Lu Cheng
- Department of Gynaecology and Obstetrics, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yuan Shi
- Department of Gynaecology and Obstetrics, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Jia Li
- Department of Gynaecology and Obstetrics, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Qinghui Yun
- Department of medical equipment, Xijing Hospital, Fourth Military Medical University, Xi'an, China.
| | - Hong Yang
- Department of Gynaecology and Obstetrics, Xijing Hospital, Fourth Military Medical University, Xi'an, China.
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178
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Moro L. The Mitochondrial Proteome of Tumor Cells: A SnapShot on Methodological Approaches and New Biomarkers. BIOLOGY 2020; 9:biology9120479. [PMID: 33353059 PMCID: PMC7766083 DOI: 10.3390/biology9120479] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 12/12/2020] [Accepted: 12/16/2020] [Indexed: 12/12/2022]
Abstract
Simple Summary Mitochondria are central hubs of cellular signaling, energy metabolism, and redox balance. The plasticity of these cellular organelles is an essential requisite for the cells to cope with different stimuli and stress conditions. Cancer cells are characterized by changes in energy metabolism, mitochondrial signaling, and dynamics. These changes are driven by alterations in the mitochondrial proteome. For this reason, in the last years a focus of basic and cancer research has been the implementation and optimization of technologies to investigate changes in the mitochondrial proteome during cancer initiation and progression. This review presents an overview of the most used technologies to investigate the mitochondrial proteome and recent evidence on changes in the expression levels and delocalization of certain proteins in and out the mitochondria for shaping the functional properties of tumor cells. Abstract Mitochondria are highly dynamic and regulated organelles implicated in a variety of important functions in the cell, including energy production, fatty acid metabolism, iron homeostasis, programmed cell death, and cell signaling. Changes in mitochondrial metabolism, signaling and dynamics are hallmarks of cancer. Understanding whether these modifications are associated with alterations of the mitochondrial proteome is particularly relevant from a translational point of view because it may contribute to better understanding the molecular bases of cancer development and progression and may provide new potential prognostic and diagnostic biomarkers as well as novel molecular targets for anti-cancer treatment. Making an inventory of the mitochondrial proteins has been particularly challenging given that there is no unique consensus targeting sequence that directs protein import into mitochondria, some proteins are present at very low levels, while other proteins are expressed only in some cell types, in a particular developmental stage or under specific stress conditions. This review aims at providing the state-of-the-art on methodologies used to characterize the mitochondrial proteome in tumors and highlighting the biological relevance of changes in expression and delocalization of proteins in and out the mitochondria in cancer biology.
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Affiliation(s)
- Loredana Moro
- Institute of Biomembranes, Bioenergetic and Molecular Biotechnologies, National Research Council, Via Amendola 122/O, 70125 Bari, Italy
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179
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Adaptation of metabolism to multicellular aggregation, hypoxia and obese stromal cell incorporation as potential measure of survival of ovarian metastases. Exp Cell Res 2020; 399:112397. [PMID: 33338477 DOI: 10.1016/j.yexcr.2020.112397] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 11/20/2020] [Accepted: 11/22/2020] [Indexed: 12/18/2022]
Abstract
Ovarian metastases exfoliate from the primary tumor and it is thought that aggregation supports their survival in the peritoneal cavity during dissemination but the underlying mechanisms are not clearly identified. We have previously shown that ovarian cancer cells acquire an increasingly glycolytic and metabolic flexible phenotype during progression. In the present study, we investigated how hypoxia, aggregation, and the incorporation of the obese stromal vascular fraction (SVF) affect cellular metabolism and the response to common anti-cancer and anti-diabetic drugs. Our results show a reduction of glucose uptake, lactate secretion, cellular respiration and ATP synthesis in response to hypoxia and aggregation, suggesting that the observed reduced proliferation of cells aggregated into spheroids is the result of a down-regulation of respiration. Recruitment of SVF to spheroids increased the spheroids invasive capacity but reduced respiration only in the most aggressive cells. Further, aggregation and hypoxia reduced the response to the metabolic drugs AICAR and metformin, and the chemotherapeutic agents cisplatin and paclitaxel. Our results suggest that the adaptation of cellular metabolism may contribute to enhanced survival under non-permissive conditions, and that these metabolic alterations may provide targets for future interventions that aim to enhance the survival of women with metastatic ovarian cancer.
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180
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Wu S, Deng H, He H, Xu R, Wang Y, Zhu X, Zhang J, Zeng Q, Zhao X. The circ_0004463/miR-380-3p/FOXO1 axis modulates mitochondrial respiration and bladder cancer cell apoptosis. Cell Cycle 2020; 19:3563-3580. [PMID: 33283616 DOI: 10.1080/15384101.2020.1852746] [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: 12/31/2022] Open
Abstract
Bladder cancer is one of the most commonly diagnosed and fatal malignancies of the urinary tract. Noncoding RNAs have been reported to be new biomarkers and effective treatment targets for bladder cancer. In the present study, we identified a novel bladder cancer-related circRNA-miRNA-mRNA network, the circ_0004463/miR-380-3p/FOXO1 axis. circ_0004463 is significantly downregulated, whereas miR-380-3p is upregulated in bladder carcinoma tissue samples and cells. circ_0004463 acts as a tumor suppressor by inhibiting bladder cancer cell proliferation. Genes that negatively correlated with miR-380-3p and genes that miR-380-3p might target are enriched in mitochondrial respiration chain-related pathways. miR-380-3p promotes the proliferation of bladder cancer cells and mitochondrial respiration by acting as an oncogenic miRNA. circ_0004463 competes with FOXO1 for miR-380-3p binding to counteract miR-380-3p-mediated repression of FOXO1. Circ_0004463 overexpression inhibits cancer cell proliferation and mitochondrial respiration in bladder cancer cell lines, while miR-380-3p overexpression dramatically reverses the roles of circ_0004463 overexpression. In conclusion, the circ_0004463/miR-380-3p/FOXO1 axis could regulate mitochondrial respiration and bladder cancer cell apoptosis via FOXO1 signaling.
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Affiliation(s)
- Shuiqing Wu
- Department of Urology, The Second Xiangya Hospital, Central South University , Changsha, Hunan Province, People's Republic of China
| | - Huanghao Deng
- Department of Urology, The Second Xiangya Hospital, Central South University , Changsha, Hunan Province, People's Republic of China
| | - Haiqing He
- Department of Urology, The Second Xiangya Hospital, Central South University , Changsha, Hunan Province, People's Republic of China
| | - Ran Xu
- Department of Urology, The Second Xiangya Hospital, Central South University , Changsha, Hunan Province, People's Republic of China
| | - Yinhuai Wang
- Department of Urology, The Second Xiangya Hospital, Central South University , Changsha, Hunan Province, People's Republic of China
| | - Xuan Zhu
- Department of Urology, The Second Xiangya Hospital, Central South University , Changsha, Hunan Province, People's Republic of China
| | - Jinhua Zhang
- Department of Urology, The Second Xiangya Hospital, Central South University , Changsha, Hunan Province, People's Republic of China
| | - Qi Zeng
- Department of Urology, The Second Xiangya Hospital, Central South University , Changsha, Hunan Province, People's Republic of China
| | - Xiaokun Zhao
- Department of Urology, The Second Xiangya Hospital, Central South University , Changsha, Hunan Province, People's Republic of China
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181
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Liu W, Xu W, Li C, Xu J, Huang K, Hu R, Huang H, Liu X. Network pharmacological systems study of Huang-Lian-Tang in the treatment of glioblastoma multiforme. Oncol Lett 2020; 21:18. [PMID: 33240424 PMCID: PMC7681198 DOI: 10.3892/ol.2020.12279] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 08/18/2020] [Indexed: 02/06/2023] Open
Abstract
Glioblastoma multiforme (GBM) has a poor prognosis and its recurrence and mortality rates are high. At present, there is no effective clinical method to control its progression and recurrence. Traditional Chinese Medicine has a high status not only in China, but also in the world. Certain drugs are also used in the clinical treatment of tumor diseases. In clinical practice, Huang-Lian-Tang (HLT) has proven efficacy in treating brain diseases and preventing tumor recurrence. However, the mechanisms of action have remained elusive. The present study explored the potential mechanisms of HLT in the treatment of gliomas based on network pharmacology. First, information on the composition of HLT was obtained from the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform, and the composition and targets of the chemical substances contained in the herbs were analyzed. Subsequently, a pharmacological interaction network for HLT was built. Furthermore, the expressed genes of patients with GBM were obtained from Gene Expression Omnibus database and screened. A protein-protein interaction network was then constructed for both sets of data and they were combined with a topology method for analysis. Finally, the screened genes were subjected to enrichment analysis and pathway analysis. A total of 386 candidate targets and 7 Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways were screened, which were mainly associated with amino acid metabolism. Gene Ontology enrichment analysis and KEGG signal pathway analysis indicated that these targets are involved in anti-apoptosis, anti-oxidative stress, multicellular biological processes and other physiological and pathological processes related to the occurrence and development of GBM. In conclusion, the present results indicated that the mechanisms of action of HLT against GBM involve multiple targets and signaling pathways that are related to tumorigenesis and progression. The present study not only provided a novel theoretical basis for Traditional Chinese Medicine to treat tumors but also novel ideas for the treatment of GBM.
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Affiliation(s)
- Wangrui Liu
- Department of Neurosurgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi 533000, P.R. China.,Clinical College of Youjiang Medical University for Nationalities, Baise, Guangxi 533000, P.R. China
| | - Wenhao Xu
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai 20032, P.R. China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 20032, P.R. China
| | - Chuanyu Li
- Department of Neurosurgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi 533000, P.R. China.,Clinical College of Youjiang Medical University for Nationalities, Baise, Guangxi 533000, P.R. China
| | - Junfei Xu
- Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Ke Huang
- Department of Obstetrics and Gynecology, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing, Jiangsu 210004, P.R. China
| | - Renyue Hu
- Department of Endocrinology and Metabolism, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Haineng Huang
- Department of Neurosurgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi 533000, P.R. China.,Clinical College of Youjiang Medical University for Nationalities, Baise, Guangxi 533000, P.R. China
| | - Xiaojuan Liu
- Department of Pathogenic Biology, Medical College, Nantong University, Nantong, Jiangsu 226001, P.R. China
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182
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Angireddy R, Chowdhury AR, Zielonka J, Ruthel G, Kalyanaraman B, Avadhani NG. Alcohol-induced CYP2E1, mitochondrial dynamics and retrograde signaling in human hepatic 3D organoids. Free Radic Biol Med 2020; 159:1-14. [PMID: 32738395 DOI: 10.1016/j.freeradbiomed.2020.06.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 06/19/2020] [Accepted: 06/21/2020] [Indexed: 12/20/2022]
Abstract
Alcohol toxicity is a significant health problem with ~3 million estimated deaths per year globally. Alcohol is metabolized to the toxic metabolite, acetaldehyde by alcohol dehydrogenase or CYP2E1 in the hepatic tissue, and also induces reactive oxygen species (ROS), which together play a pivotal role in cell and tissue damage. Our previous studies with COS-7 cells transduced with unique human CYP2E1 variants that mostly localize to either microsomes or mitochondria revealed that mitochondrially-localized CYP2E1 drives alcohol toxicity through the generation of higher levels of ROS, which has a consequent effect on cytochrome c oxidase (CcO) and mitochondrial oxidative function. Alcohol treatment of human hepatocyte cell line, HepaRG, in monolayer cultures increased ROS, affected CcO activity/stability, and induced mitophagy. Alcohol treatment of 3D organoids of HepaRG cells induced higher levels of CYP2E1 mRNA and activated mitochondrial stress-induced retrograde signaling, and also induced markers of hepatic steatosis. Knock down of CYP2E1 mRNA using specific shRNA, FK506, a Calcineurin inhibitor, and Mdivi-1, a DRP1 inhibitor, ameliorated alcohol-induced mitochondrial retrograde signaling, and hepatic steatosis. These results for the first time present a mechanistic link between CYP2E1 function and alcohol mediated mitochondrial dysfunction, retrograde signaling, and activation of hepatic steatosis in a 3D organoid system that closely recapitulates the in vivo liver response.
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Affiliation(s)
- Rajesh Angireddy
- Department of Biomedical Sciences, School of Veterinary Medicine, 3800 Spruce Street, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Anindya Roy Chowdhury
- Department of Biomedical Sciences, School of Veterinary Medicine, 3800 Spruce Street, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Jacek Zielonka
- Department of Biophysics and, Free Radical Research Center, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Gordon Ruthel
- Department of Pathobiology, Veterinary Center for Imaging, Hill Pavilion, School of Veterinary Medicine, University of Pennsylvania, PA, 19104, USA
| | - Balaraman Kalyanaraman
- Department of Biophysics and, Free Radical Research Center, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Narayan G Avadhani
- Department of Biomedical Sciences, School of Veterinary Medicine, 3800 Spruce Street, University of Pennsylvania, Philadelphia, PA, 19104, USA.
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183
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English J, Son JM, Cardamone MD, Lee C, Perissi V. Decoding the rosetta stone of mitonuclear communication. Pharmacol Res 2020; 161:105161. [PMID: 32846213 PMCID: PMC7755734 DOI: 10.1016/j.phrs.2020.105161] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 08/04/2020] [Accepted: 08/14/2020] [Indexed: 12/12/2022]
Abstract
Cellular homeostasis in eukaryotic cells requires synchronized coordination of multiple organelles. A key role in this stage is played by mitochondria, which have recently emerged as highly interconnected and multifunctional hubs that process and coordinate diverse cellular functions. Beyond producing ATP, mitochondria generate key metabolites and are central to apoptotic and metabolic signaling pathways. Because most mitochondrial proteins are encoded in the nuclear genome, the biogenesis of new mitochondria and the maintenance of mitochondrial functions and flexibility critically depend upon effective mitonuclear communication. This review addresses the complex network of signaling molecules and pathways allowing mitochondria-nuclear communication and coordinated regulation of their independent but interconnected genomes, and discusses the extent to which dynamic communication between the two organelles has evolved for mutual benefit and for the overall maintenance of cellular and organismal fitness.
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Affiliation(s)
- Justin English
- Department of Biochemistry, Boston University, Boston, MA, 02115, USA; Graduate Program in Biomolecular Pharmacology, Department of Pharmacology and Experimental Therapeutics, Boston University, Boston, MA, 02115, USA
| | - Jyung Mean Son
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA 90089, USA
| | | | - Changhan Lee
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA 90089, USA; USC Norris Comprehensive Cancer Center, Los Angeles, CA, 90089, USA; Biomedical Sciences, Graduate School, Ajou University, Suwon, 16499, South Korea
| | - Valentina Perissi
- Department of Biochemistry, Boston University, Boston, MA, 02115, USA.
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184
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Chaiyarit S, Thongboonkerd V. Mitochondrial Dysfunction and Kidney Stone Disease. Front Physiol 2020; 11:566506. [PMID: 33192563 PMCID: PMC7606861 DOI: 10.3389/fphys.2020.566506] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 09/16/2020] [Indexed: 12/13/2022] Open
Abstract
Mitochondrion is a pivotal intracellular organelle that plays crucial roles in regulation of energy production, oxidative stress, calcium homeostasis, and apoptosis. Kidney stone disease (nephrolithiasis/urolithiasis), particularly calcium oxalate (CaOx; the most common type), has been shown to be associated with oxidative stress and tissue inflammation/injury. Recent evidence has demonstrated the involvement of mitochondrial dysfunction in CaOx crystal retention and aggregation as well as Randall’s plaque formation, all of which are the essential mechanisms for kidney stone formation. This review highlights the important roles of mitochondria in renal cell functions and provides the data obtained from previous investigations of mitochondria related to kidney stone disease. In addition, mechanisms for the involvement of mitochondrial dysfunction in the pathophysiology of kidney stone disease are summarized. Finally, future perspectives on the novel approach to prevent kidney stone formation by mitochondrial preservation are discussed.
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Affiliation(s)
- Sakdithep Chaiyarit
- Medical Proteomics Unit, Office for Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Visith Thongboonkerd
- Medical Proteomics Unit, Office for Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
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185
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Genovese I, Vezzani B, Danese A, Modesti L, Vitto VAM, Corazzi V, Pelucchi S, Pinton P, Giorgi C. Mitochondria as the decision makers for cancer cell fate: from signaling pathways to therapeutic strategies. Cell Calcium 2020; 92:102308. [PMID: 33096320 DOI: 10.1016/j.ceca.2020.102308] [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: 08/11/2020] [Revised: 10/05/2020] [Accepted: 10/05/2020] [Indexed: 02/06/2023]
Abstract
As pivotal players in cellular metabolism, mitochondria have a double-faceted role in the final decision of cell fate. This is true for all cell types, but it is even more important and intriguing in the cancer setting. Mitochondria regulate cell fate in many diverse ways: through metabolism, by producing ATP and other metabolites deemed vital or detrimental for cancer cells; through the regulation of Ca2+ homeostasis, especially by the joint participation of the endoplasmic reticulum in a membranous tethering system for Ca2+ signaling called mitochondria-ER associated membranes (MAMs); and by regulating signaling pathways involved in the survival of cancer cells such as mitophagy. Recent studies have shown that mitochondria can also play a role in the regulation of inflammatory pathways in cancer cells, for example, through the release of mitochondrial DNA (mtDNA) involved in the activation of the cGAS-cGAMP-STING pathway. In this review, we aim to explore the role of mitochondria as decision makers in fostering cancer cell death or survival depending on the tumor cell stage and describe novel anticancer therapeutic strategies targeting mitochondria.
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Affiliation(s)
- Ilaria Genovese
- Department of Medical Sciences, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, Ferrara, Italy
| | - Bianca Vezzani
- Department of Medical Sciences, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, Ferrara, Italy
| | - Alberto Danese
- Department of Medical Sciences, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, Ferrara, Italy
| | - Lorenzo Modesti
- Department of Medical Sciences, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, Ferrara, Italy
| | - Veronica Angela Maria Vitto
- Department of Medical Sciences, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, Ferrara, Italy
| | - Virginia Corazzi
- ENT & Audiology Department, University Hospital of Ferrara, Ferrara, Italy
| | - Stefano Pelucchi
- ENT & Audiology Department, University Hospital of Ferrara, Ferrara, Italy
| | - Paolo Pinton
- Department of Medical Sciences, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, Ferrara, Italy
| | - Carlotta Giorgi
- Department of Medical Sciences, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, Ferrara, Italy.
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186
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Involvement of Mitochondrial Mechanisms in the Cytostatic Effect of Desethylamiodarone in B16F10 Melanoma Cells. Int J Mol Sci 2020; 21:ijms21197346. [PMID: 33027919 PMCID: PMC7582344 DOI: 10.3390/ijms21197346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/29/2020] [Accepted: 10/01/2020] [Indexed: 12/24/2022] Open
Abstract
Previously, we showed that desethylamiodarone (DEA), a major metabolite of the widely used antiarrhythmic drug amiodarone, has direct mitochondrial effects. We hypothesized that these effects account for its observed cytotoxic properties and ability to limit in vivo metastasis. Accordingly, we examined DEA’s rapid (3–12 h) cytotoxicity and its early (3–6 h) effects on various mitochondrial processes in B16F10 melanoma cells. DEA did not affect cellular oxygen radical formation, as determined using two fluorescent dyes. However, it did decrease the mitochondrial transmembrane potential, as assessed by JC-1 dye and fluorescence microscopy. It also induced mitochondrial fragmentation, as visualized by confocal fluorescence microscopy. DEA decreased maximal respiration, ATP production, coupling efficiency, glycolysis, and non-mitochondrial oxygen consumption measured by a Seahorse cellular energy metabolism analyzer. In addition, it induced a cyclosporine A–independent mitochondrial permeability transition, as determined by Co2+-mediated calcein fluorescence quenching measured using a high-content imaging system. DEA also caused outer mitochondrial membrane permeabilization, as assessed by the immunoblot analysis of cytochrome C, apoptosis inducing factor, Akt, phospho-Akt, Bad, and phospho-Bad. All of these data supported our initial hypothesis.
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187
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Mettu A, Talla V, Naikal SJP. Novel anticancer Hsp90 inhibitor disubstituted pyrazolyl 2-aminopyrimidine compound 7t induces cell cycle arrest and apoptosis via mitochondrial pathway in MCF-7 cells. Bioorg Med Chem Lett 2020; 30:127470. [DOI: 10.1016/j.bmcl.2020.127470] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 07/03/2020] [Accepted: 08/04/2020] [Indexed: 12/16/2022]
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188
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Liu Y, Li X, Qin X. Saccharum Granorum ameliorated mitochondrial dysfunction in chronic atrophic gastritis rats using organelle-specific metabolomics and network pharmacology approaches. Food Res Int 2020; 136:109503. [DOI: 10.1016/j.foodres.2020.109503] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 06/24/2020] [Accepted: 06/24/2020] [Indexed: 01/06/2023]
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189
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Golbaz R, Khoei S, Khoee S, Shirvalilou S, Safa M, Mahdavi SR, Karimi MR. Apoptosis pathway in the combined treatment of x-ray and 5-FU-loaded triblock copolymer-coated magnetic nanoparticles. Nanomedicine (Lond) 2020; 15:2255-2270. [PMID: 32975155 DOI: 10.2217/nnm-2020-0119] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Aim: In this study, the effects of ionizing radiation and 5-fluorouracil (5-FU)-loaded triblock copolymer-coated magnetic nanoparticles (NPs) on the induction of apoptosis in HT-29 and HCT-116 were investigated. Materials & methods: The percentage of apoptotic cells and alteration of the expression of apoptotic-related proteins were evaluated in treated cells by flow cytometry and western blot analysis, respectively. Results: Combination treatment with 5-FU and radiation had a stronger effect on decreasing Bcl-2 expression and increasing expression of Bax, cleaved caspase-9, cleaved caspase-3, cleaved PARP compared with each treatment alone. Conclusion: The combination of radiation and triblock copolymer-coated magnetic NPs as 5-FU drug carriers works by triggering apoptosis to improve in vitro treatment efficacy. Additional study may present the NPs as an effective approach for the treatment of colon cancer.
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Affiliation(s)
- Rezvan Golbaz
- Student Research Committee, Iran University of Medical Sciences, Tehran, Iran.,Department of Medical Physics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Samideh Khoei
- Finetech in Medicine Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Medical Physics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Sepideh Khoee
- Department of Polymer Chemistry, School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Sakine Shirvalilou
- Finetech in Medicine Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Majid Safa
- Department of Hematology & Blood Transfusion, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Seied R Mahdavi
- Department of Medical Physics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad R Karimi
- Department of Polymer Chemistry, School of Chemistry, College of Science, University of Tehran, Tehran, Iran
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190
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Deletion of Bmal1 Impairs Pancreatic β-Cell Function via Mitochondrial Signaling Pathway. BIOMED RESEARCH INTERNATIONAL 2020; 2020:9803024. [PMID: 32964049 PMCID: PMC7492957 DOI: 10.1155/2020/9803024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 07/28/2020] [Indexed: 11/17/2022]
Abstract
Several studies have demonstrated that brain and muscle Arnt-like protein-1 (Bmal1) acts as a core clock gene for maintaining normal cell function, including hepatocytes and cardiomyocytes. Loss of Bmal1 is associated with type 2 diabetes due to pancreatic β-cell failure. However, little information is available about its role and mechanism in pancreatic β-cell. To address this, we investigated the consequences of Bmal1 inhibition in an insulinoma cell line (INS-1) by using small interfering RNA (siRNA). We observed that knockout of Bmal1 impaired glucose-stimulated insulin secretion in β-cell. Meanwhile, the depletion of Bmal1 in β-cell caused an adverse change in mitochondrial membrane potential and mitochondrial architecture. Deletion of Bmal1 attenuated mRNA and protein expression of mitofusin 1 (Mfn1) and mitofusin 2 (Mfn2) and enhanced the expression of fission 1 (Fis1). In summary, the deletion of Bmal1 impaired β-cell function may be via the mitochondrial signaling pathway in INS-1 cells.
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191
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Chapman J, Ng YS, Nicholls TJ. The Maintenance of Mitochondrial DNA Integrity and Dynamics by Mitochondrial Membranes. Life (Basel) 2020; 10:life10090164. [PMID: 32858900 PMCID: PMC7555930 DOI: 10.3390/life10090164] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 08/20/2020] [Accepted: 08/23/2020] [Indexed: 12/18/2022] Open
Abstract
Mitochondria are complex organelles that harbour their own genome. Mitochondrial DNA (mtDNA) exists in the form of a circular double-stranded DNA molecule that must be replicated, segregated and distributed around the mitochondrial network. Human cells typically possess between a few hundred and several thousand copies of the mitochondrial genome, located within the mitochondrial matrix in close association with the cristae ultrastructure. The organisation of mtDNA around the mitochondrial network requires mitochondria to be dynamic and undergo both fission and fusion events in coordination with the modulation of cristae architecture. The dysregulation of these processes has profound effects upon mtDNA replication, manifesting as a loss of mtDNA integrity and copy number, and upon the subsequent distribution of mtDNA around the mitochondrial network. Mutations within genes involved in mitochondrial dynamics or cristae modulation cause a wide range of neurological disorders frequently associated with defects in mtDNA maintenance. This review aims to provide an understanding of the biological mechanisms that link mitochondrial dynamics and mtDNA integrity, as well as examine the interplay that occurs between mtDNA, mitochondrial dynamics and cristae structure.
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Affiliation(s)
- James Chapman
- Wellcome Centre for Mitochondrial Research, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK;
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
- Correspondence: (J.C.); (T.J.N.)
| | - Yi Shiau Ng
- Wellcome Centre for Mitochondrial Research, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK;
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - Thomas J. Nicholls
- Wellcome Centre for Mitochondrial Research, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK;
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
- Correspondence: (J.C.); (T.J.N.)
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192
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Mitochondrial abnormalities in neurodegenerative models and possible interventions: Focus on Alzheimer's disease, Parkinson's disease, Huntington's disease. Mitochondrion 2020; 55:14-47. [PMID: 32828969 DOI: 10.1016/j.mito.2020.08.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 05/22/2020] [Accepted: 08/14/2020] [Indexed: 12/12/2022]
Abstract
Mitochondrial abnormalities in the brain are considered early pathological changes in neurogenerative diseases, such as Alzheimer's disease (AD), Parkinson's disease (PD) and Huntington's disease (HD). The mitochondrial dysfunction in the brain can be induced by toxic proteins, including amyloid-beta (Aβ), phosphorylated tau, alpha-synuclein (α-syn) and mutant huntingtin (mtHTT). These proteins cause mitochondrial genome damage, increased oxidative stress, decreased mitochondrial membrane permeability, and diminished ATP production. Consequently, synaptic dysfunction, synaptic loss, neuronal apoptosis, and ultimately cognitive impairment are exhibited. Therefore, the restoration of mitochondrial abnormalities in the brain is an alternative intervention to delay the progression of neurodegenerative diseases in addition to reducing the level of toxic proteins, especially Aβ, and restored synaptic dysfunction by interventions. Here we comprehensively review mitochondrial alterations in the brain of neurodegenerative models, specifically AD, PD and HD, from both in vitro and in vivo studies. Additionally, the correlation between mitochondrial changes, cognitive function, and disease progression from in vivo studies is described. This review also summarizes interventions that possibly attenuate mitochondrial abnormalities in AD, PD and HD models from both in vitro and in vivo studies. This may lead to the introduction of novel therapies that target on brain mitochondria to delay the progression of AD, PD and HD.
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193
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Missiroli S, Perrone M, Genovese I, Pinton P, Giorgi C. Cancer metabolism and mitochondria: Finding novel mechanisms to fight tumours. EBioMedicine 2020; 59:102943. [PMID: 32818805 PMCID: PMC7452656 DOI: 10.1016/j.ebiom.2020.102943] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 07/22/2020] [Accepted: 07/22/2020] [Indexed: 12/13/2022] Open
Abstract
Mitochondria are dynamic organelles that have essential metabolic activity and are regarded as signalling hubs with biosynthetic, bioenergetics and signalling functions that orchestrate key biological pathways. However, mitochondria can influence all processes linked to oncogenesis, starting from malignant transformation to metastatic dissemination. In this review, we describe how alterations in the mitochondrial metabolic status contribute to the acquisition of typical malignant traits, discussing the most recent discoveries and the many unanswered questions. We also highlight that expanding our understanding of mitochondrial regulation and function mechanisms in the context of cancer cell metabolism could be an important task in biomedical research, thus offering the possibility of targeting mitochondria for the treatment of cancer.
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Affiliation(s)
- Sonia Missiroli
- Department of Medical Sciences, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, Ferrara, Italy
| | - Mariasole Perrone
- Department of Medical Sciences, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, Ferrara, Italy
| | - Ilaria Genovese
- Department of Medical Sciences, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, Ferrara, Italy
| | - Paolo Pinton
- Department of Medical Sciences, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, Ferrara, Italy
| | - Carlotta Giorgi
- Department of Medical Sciences, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, Ferrara, Italy.
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194
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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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195
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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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196
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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: 5] [Impact Index Per Article: 1.3] [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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197
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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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198
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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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199
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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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200
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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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