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Xu M, Gao X, Yue L, Li J, Feng X, Huang D, Cai H, Qi Y. Sensitivity of triple negative breast cancer cells to ATM-dependent ferroptosis induced by sodium selenite. Exp Cell Res 2024; 442:114222. [PMID: 39214329 DOI: 10.1016/j.yexcr.2024.114222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 07/31/2024] [Accepted: 08/23/2024] [Indexed: 09/04/2024]
Abstract
Targeting ferroptosis, a type of cell death elicited by Fe2+ and lipid reactive oxygen species (L-ROS), provides a novel strategy for cancer therapy. Selenium has the potential to treat cancers by acting as a pro-oxidative agent, thus leading to cancer cell death. Here, we found that the triple negative breast cancer (TNBC) MDA-MB-231 cells were more sensitive to ferroptosis induced by sodium selenite (Na2SeO3) than that of non-TNBC MCF-7 cells. Na2SeO3 significantly elevated the level of L-ROS, MDA and Fe2+, decreased the content of GSH and the enzyme activity of GPx, disrupted the expression of ferroptosis related proteins such as GPx4 and FTH1, as well as compromised mitochondrial morphology in MDA-MB-231 cells. Moreover, ATM was activated by Na2SeO3 in MDA-MB-231 cells. Notably, Na2SeO3-induced ferroptosis was inhibited by ATM kinase inhibitor KU55933 or siATM, suggesting that Na2SeO3-induced ferroptosis was mediated by ATM protein in MDA-MB-231 cells. Our findings suggest a therapeutic strategy by ferroptosis against TNBC and deepened our understanding of ATM function.
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Affiliation(s)
- Mengchen Xu
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Xu Gao
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Lu Yue
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Jinyu Li
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Xiaoya Feng
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Dejun Huang
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Hui Cai
- Key Laboratory of Molecular Diagnostics and Precision Medicine for Surgical Oncology in Gansu Province, Gansu Provincial Hospital, 222 South Tianshui R.D., Lanzhou, 730000, China.
| | - Yongmei Qi
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China.
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2
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Cui J, Li J, Zhao S, Fan L, Yin S, Zhao C, Hu H. Combination of Selenite and Butyrate Enhances Efficacy Against Colon Cancer by Targeting ASCT2-Mediated Amino Acid Metabolism. Biol Trace Elem Res 2024; 202:3565-3573. [PMID: 37897593 DOI: 10.1007/s12011-023-03927-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 10/22/2023] [Indexed: 10/30/2023]
Abstract
Drug combination is considered to be an effective approach to improve the efficacy of cancer therapy and chemoprevention. Selenite, a representative of inorganic form of selenium, and butyrate, a major short-chain fatty acid, are two well-documented colon cancer dietary chemopreventive agents with distinct molecular mechanisms. We hypothesized that combination of selenite and butyrate might produce improved outcome against colon cancer. This hypothesis was tested using both HCT116 human colon cancer cells and its xenograft mouse model in the present study. The in vitro study showed a synergistically inhibitory effect on HCT116 colon cancer cells but not on NCM460 normal human colon mucosal epithelial cells. Consistent with the in vitro study, results of the xenograft mouse model further demonstrated that combination of selenite and butyrate led to improved efficacy in comparison with each agent alone. Mechanistically, the induction of alanine-serine-cysteine transporter 2 (ASCT2) by selenite repressed its inhibitory effect on colon cancer cells, which was reversed by its co-treatment with butyrate. The findings of the present study denote the likely potential for developing selenite/butyrate combination remedy to combat against colon cancer.
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Affiliation(s)
- Jinling Cui
- College of Food Science and Nutritional Engineering, China Agricultural University, Haidian District, No.17 Qinghua East Road, Beijing, 100083, China
| | - Jingsi Li
- College of Food Science and Nutritional Engineering, China Agricultural University, Haidian District, No.17 Qinghua East Road, Beijing, 100083, China
| | - Shuang Zhao
- College of Food Science and Nutritional Engineering, China Agricultural University, Haidian District, No.17 Qinghua East Road, Beijing, 100083, China
| | - Lihong Fan
- College of Veterinary Medicine, China Agricultural University, Haidian District, No.2 Yunamingyuan West Road, Beijing, 100193, China.
| | - Shutao Yin
- College of Food Science and Nutritional Engineering, China Agricultural University, Haidian District, No.17 Qinghua East Road, Beijing, 100083, China
| | - Chong Zhao
- College of Food Science and Nutritional Engineering, China Agricultural University, Haidian District, No.17 Qinghua East Road, Beijing, 100083, China
| | - Hongbo Hu
- College of Food Science and Nutritional Engineering, China Agricultural University, Haidian District, No.17 Qinghua East Road, Beijing, 100083, China.
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3
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Yang M, Wei X, Yi X, Jiang DS. Mitophagy-related regulated cell death: molecular mechanisms and disease implications. Cell Death Dis 2024; 15:505. [PMID: 39013891 PMCID: PMC11252137 DOI: 10.1038/s41419-024-06804-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 05/26/2024] [Accepted: 06/03/2024] [Indexed: 07/18/2024]
Abstract
During oxidative phosphorylation, mitochondria continuously produce reactive oxygen species (ROS), and untimely ROS clearance can subject mitochondria to oxidative stress, ultimately resulting in mitochondrial damage. Mitophagy is essential for maintaining cellular mitochondrial quality control and homeostasis, with activation involving both ubiquitin-dependent and ubiquitin-independent pathways. Over the past decade, numerous studies have indicated that different forms of regulated cell death (RCD) are connected with mitophagy. These diverse forms of RCD have been shown to be regulated by mitophagy and are implicated in the pathogenesis of a variety of diseases, such as tumors, degenerative diseases, and ischemia‒reperfusion injury (IRI). Importantly, targeting mitophagy to regulate RCD has shown excellent therapeutic potential in preclinical trials, and is expected to be an effective strategy for the treatment of related diseases. Here, we present a summary of the role of mitophagy in different forms of RCD, with a focus on potential molecular mechanisms by which mitophagy regulates RCD. We also discuss the implications of mitophagy-related RCD in the context of various diseases.
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Affiliation(s)
- Molin Yang
- Division of Cardiovascular Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xiang Wei
- Division of Cardiovascular Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, Hubei, China
| | - Xin Yi
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China.
| | - Ding-Sheng Jiang
- Division of Cardiovascular Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
- Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, Hubei, China.
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4
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Ma W, Lu Y, Jin X, Lin N, Zhang L, Song Y. Targeting selective autophagy and beyond: From underlying mechanisms to potential therapies. J Adv Res 2024:S2090-1232(24)00199-1. [PMID: 38750694 DOI: 10.1016/j.jare.2024.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 04/26/2024] [Accepted: 05/08/2024] [Indexed: 05/21/2024] Open
Abstract
BACKGROUND Autophagy is an evolutionarily conserved turnover process for intracellular substances in eukaryotes, relying on lysosomal (in animals) or vacuolar (in yeast and plants) mechanisms. In the past two decades, emerging evidence suggests that, under specific conditions, autophagy can target particular macromolecules or organelles for degradation, a process termed selective autophagy. Recently, accumulating studies have demonstrated that the abnormality of selective autophagy is closely associated with the occurrence and progression of many human diseases, including neurodegenerative diseases, cancers, metabolic diseases, and cardiovascular diseases. AIM OF REVIEW This review aims at systematically and comprehensively introducing selective autophagy and its role in various diseases, while unravelling the molecular mechanisms of selective autophagy. By providing a theoretical basis for the development of related small-molecule drugs as well as treating related human diseases, this review seeks to contribute to the understanding of selective autophagy and its therapeutic potential. KEY SCIENTIFIC CONCEPTS OF REVIEW In this review, we systematically introduce and dissect the major categories of selective autophagy that have been discovered. We also focus on recent advances in understanding the molecular mechanisms underlying both classical and non-classical selective autophagy. Moreover, the current situation of small-molecule drugs targeting different types of selective autophagy is further summarized, providing valuable insights into the discovery of more candidate small-molecule drugs targeting selective autophagy in the future. On the other hand, we also reveal clinically relevant implementations that are potentially related to selective autophagy, such as predictive approaches and treatments tailored to individual patients.
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Affiliation(s)
- Wei Ma
- Department of Breast Surgery, Department of Ultrasound, Department of Hematology and Department of Radiation Oncology, The First Hospital of China Medical University, Shenyang 110001, China
| | - Yingying Lu
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Xin Jin
- Department of Breast Surgery, Department of Ultrasound, Department of Hematology and Department of Radiation Oncology, The First Hospital of China Medical University, Shenyang 110001, China
| | - Na Lin
- Department of Breast Surgery, Department of Ultrasound, Department of Hematology and Department of Radiation Oncology, The First Hospital of China Medical University, Shenyang 110001, China.
| | - Lan Zhang
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Yaowen Song
- Department of Breast Surgery, Department of Ultrasound, Department of Hematology and Department of Radiation Oncology, The First Hospital of China Medical University, Shenyang 110001, China.
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5
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Li X, Ma K, Tian T, Pang H, Liu T, Li M, Li J, Luo Z, Hu H, Hou S, Yu J, Hou Q, Song X, Zhao C, Du H, Li J, Du Z, Jin M. Methylmercury induces inflammatory response and autophagy in microglia through the activation of NLRP3 inflammasome. ENVIRONMENT INTERNATIONAL 2024; 186:108631. [PMID: 38588609 DOI: 10.1016/j.envint.2024.108631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/03/2024] [Accepted: 04/03/2024] [Indexed: 04/10/2024]
Abstract
Methylmercury (MeHg) is a global environmental pollutant with neurotoxicity, which can easily crosses the blood-brain barrier and cause irreversible damage to the human central nervous system (CNS). CNS inflammation and autophagy are known to be involved in the pathology of neurodegenerative diseases. Meanwhile, MeHg has the potential to induce microglia-mediated neuroinflammation as well as autophagy. This study aims to further explore the exact molecular mechanism of MeHg neurotoxicity. We conducted in vitro studies using BV2 microglial cell from the central nervous system of mice. The role of inflammation and autophagy in the damage of BV2 cells induced by MeHg was determined by detecting cell viability, cell morphology and structure, reactive oxygen species (ROS), antioxidant function, inflammatory factors, autophagosomes, inflammation and autophagy-related proteins. We further investigated the relationship between the inflammatory response and autophagy induced by MeHg by inhibiting them separately. The results indicated that MeHg could invade cells, change cell structure, activate NOD-like receptor thermal protein domain associated protein 3 (NLRP3) inflammasome and autophagosome, release a large amount of inflammatory factors and trigger the inflammatory response and autophagy. It was also found that MeHg could disrupt the antioxidant function of cells. In addition, the inhibition of NLRP3 inflammasome alleviated both cellular inflammation and autophagy, while inhibition of autophagy increased cellular inflammation. Our current research suggests that MeHg might induce BV2 cytotoxicity through inflammatory response and autophagy, which may be mediated by the NLRP3 inflammasome activated by oxidative stress.
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Affiliation(s)
- Xinyue Li
- School of Public Health Jilin University, Changchun, Jilin,130021, PR China
| | - Kai Ma
- School of Public Health Jilin University, Changchun, Jilin,130021, PR China
| | - Tiantian Tian
- School of Public Health Jilin University, Changchun, Jilin,130021, PR China
| | - Huan Pang
- School of Public Health Jilin University, Changchun, Jilin,130021, PR China
| | - Tianxiang Liu
- School of Public Health Jilin University, Changchun, Jilin,130021, PR China
| | - Meng Li
- School of Public Health Jilin University, Changchun, Jilin,130021, PR China
| | - Jiali Li
- School of Public Health Jilin University, Changchun, Jilin,130021, PR China
| | - Zhixuan Luo
- School of Public Health Jilin University, Changchun, Jilin,130021, PR China
| | - Huiyuan Hu
- School of Public Health Jilin University, Changchun, Jilin,130021, PR China
| | - Shanshan Hou
- School of Public Health Jilin University, Changchun, Jilin,130021, PR China
| | - Jing Yu
- School of Public Health Jilin University, Changchun, Jilin,130021, PR China
| | - Qiaohong Hou
- School of Public Health Jilin University, Changchun, Jilin,130021, PR China
| | - Xiuling Song
- School of Public Health Jilin University, Changchun, Jilin,130021, PR China
| | - Chao Zhao
- School of Public Health Jilin University, Changchun, Jilin,130021, PR China
| | - Haiying Du
- School of Public Health Jilin University, Changchun, Jilin,130021, PR China
| | - Jinhua Li
- School of Public Health Jilin University, Changchun, Jilin,130021, PR China.
| | - Zhongjun Du
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, 250062, PR China.
| | - Minghua Jin
- School of Public Health Jilin University, Changchun, Jilin,130021, PR China.
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6
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Tan S, Wang D, Fu Y, Zheng H, Liu Y, Lu B. Targeted clearance of mitochondria by an autophagy-tethering compound (ATTEC) and its potential therapeutic effects. Sci Bull (Beijing) 2023; 68:3013-3026. [PMID: 37940449 DOI: 10.1016/j.scib.2023.10.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/19/2023] [Accepted: 10/24/2023] [Indexed: 11/10/2023]
Abstract
Increased mitochondrial damage plays a critical role in many neurodegeneration-related diseases such as Parkinson's disease (PD) and Down syndrome (DS). Thus, enhancement of mitochondrial degradation by small molecule compounds may provide promising new strategies to tackle these diseases. Here, we explored the strategy to induce clearance of mitochondria by targeting them to the autophagy machinery by autophagy-tethering compounds (ATTECs). We provided the proof-of-concept evidence demonstrating that the bifunctional compound (mT1) binding to both the outer mitochondrial membrane protein TSPO and the autophagosome protein LC3B simultaneously may enhance the engulfment of damaged mitochondria by autophagosomes and subsequent autophagic degradation of them. In addition, preliminary experiments suggest that mT1 attenuated disease-relevant phenotypes in both a PD cellular model and a DS organoid model. Taken together, we demonstrate the possibility of degrading mitochondria by bifunctional ATTECs, which confirms the capability of degrading organelles by ATTECs and provides potential new strategies in the intervention of mitochondria-related disorders.
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Affiliation(s)
- Shuixia Tan
- Neurology Department at Huashan Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Da Wang
- Institute for Stem Cell and Neural Regeneration, School of Pharmacy, State Key Laboratory of Reproductive Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Yuhua Fu
- Neurology Department at Huashan Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Huiwen Zheng
- Neurology Department at Huashan Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Yan Liu
- Institute for Stem Cell and Neural Regeneration, School of Pharmacy, State Key Laboratory of Reproductive Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing 211166, China.
| | - Boxun Lu
- Neurology Department at Huashan Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, School of Life Sciences, Fudan University, Shanghai 200438, China.
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7
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Krakowiak A, Pietrasik S. New Insights into Oxidative and Reductive Stress Responses and Their Relation to the Anticancer Activity of Selenium-Containing Compounds as Hydrogen Selenide Donors. BIOLOGY 2023; 12:875. [PMID: 37372159 DOI: 10.3390/biology12060875] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 06/02/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023]
Abstract
Redox balance is important for the homeostasis of normal cells, but also for the proliferation, progression, and survival of cancer cells. Both oxidative and reductive stress can be harmful to cells. In contrast to oxidative stress, reductive stress and the therapeutic opportunities underlying the mechanisms of reductive stress in cancer, as well as how cancer cells respond to reductive stress, have received little attention and are not as well characterized. Therefore, there is recent interest in understanding how selective induction of reductive stress may influence therapeutic treatment and disease progression in cancer. There is also the question of how cancer cells respond to reductive stress. Selenium compounds have been shown to have chemotherapeutic effects against cancer, and their anticancer mechanism is thought to be related to the formation of their metabolites, including hydrogen selenide (H2Se), which is a highly reactive and reducing molecule. Here, we highlight recent reports on the molecular mechanism of how cells recognize and respond to oxidative and reductive stress (1) and the mechanisms through which different types of selenium compounds can generate H2Se (2) and thus selectively affect reductive stress under controlled conditions, which may be important for their anticancer effects.
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Affiliation(s)
- Agnieszka Krakowiak
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Sylwia Pietrasik
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
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8
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Moreno A, Taffet A, Tjahjono E, Anderson QL, Kirienko NV. Examining Sporadic Cancer Mutations Uncovers a Set of Genes Involved in Mitochondrial Maintenance. Genes (Basel) 2023; 14:1009. [PMID: 37239369 PMCID: PMC10218105 DOI: 10.3390/genes14051009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 04/25/2023] [Accepted: 04/27/2023] [Indexed: 05/28/2023] Open
Abstract
Mitochondria are key organelles for cellular health and metabolism and the activation of programmed cell death processes. Although pathways for regulating and re-establishing mitochondrial homeostasis have been identified over the past twenty years, the consequences of disrupting genes that regulate other cellular processes, such as division and proliferation, on affecting mitochondrial function remain unclear. In this study, we leveraged insights about increased sensitivity to mitochondrial damage in certain cancers, or genes that are frequently mutated in multiple cancer types, to compile a list of candidates for study. RNAi was used to disrupt orthologous genes in the model organism Caenorhabditis elegans, and a series of assays were used to evaluate these genes' importance for mitochondrial health. Iterative screening of ~1000 genes yielded a set of 139 genes predicted to play roles in mitochondrial maintenance or function. Bioinformatic analyses indicated that these genes are statistically interrelated. Functional validation of a sample of genes from this set indicated that disruption of each gene caused at least one phenotype consistent with mitochondrial dysfunction, including increased fragmentation of the mitochondrial network, abnormal steady-state levels of NADH or ROS, or altered oxygen consumption. Interestingly, RNAi-mediated knockdown of these genes often also exacerbated α-synuclein aggregation in a C. elegans model of Parkinson's disease. Additionally, human orthologs of the gene set showed enrichment for roles in human disorders. This gene set provides a foundation for identifying new mechanisms that support mitochondrial and cellular homeostasis.
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Affiliation(s)
| | | | | | | | - Natalia V. Kirienko
- Department of BioSciences, Rice University, 6100 Main St, MS140, Houston, TX 77005, USA; (A.M.); (A.T.); (E.T.); (Q.L.A.)
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9
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ARMS-NF-κB signaling regulates intracellular ROS to induce autophagy-associated cell death upon oxidative stress. iScience 2023; 26:106005. [PMID: 36798436 PMCID: PMC9926119 DOI: 10.1016/j.isci.2023.106005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 11/23/2022] [Accepted: 01/13/2023] [Indexed: 01/19/2023] Open
Abstract
Ankyrin repeat-rich membrane spanning (ARMS) plays roles in neural development, neuropathies, and tumor formation. Such pleiotropic function of ARMS is often attributed to diverse ARMS-interacting molecules in different cell context. However, it might be achieved by ARMS' effect on global biological mediator like reactive oxygen species (ROS). We established ARMS-knockdown in melanoma cells (siARMS) and in Drosophila eyes (GMR>dARMS RNAi ) and challenged them with H2O2. Decreased ARMS in both systems compromises nuclear translocation of NF-κB and induces ROS, which in turn augments autophagy flux and confers susceptibility to H2O2-triggered autophagic cell death. Resuming NF-κB activity or reducing ROS by antioxidants in siARMS cells and GMR>dARMS RNAi fly decreases intracellular peroxides level concurrent with reduced autophagy and attenuated cell death. Conversely, blocking NF-κB activity in wild-type flies/melanoma enhances ROS and induces autophagy with cell death. We thus uncover intracellular ROS modulated by ARMS-NFκB signaling primes autophagy for autophagic cell death upon oxidative stress.
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10
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Sehgal SA, Wu H, Sajid M, Sohail S, Ahsan M, Parveen G, Riaz M, Khan MS, Iqbal MN, Malik A. Pharmacological Progress of Mitophagy Regulation. Curr Neuropharmacol 2023; 21:1026-1041. [PMID: 36918785 PMCID: PMC10286582 DOI: 10.2174/1570159x21666230314140528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 01/12/2023] [Accepted: 01/13/2023] [Indexed: 03/16/2023] Open
Abstract
With the advancement in novel drug discovery, biologically active compounds are considered pharmacological tools to understand complex biological mechanisms and the identification of potent therapeutic agents. Mitochondria boast a central role in different integral biological processes and mitochondrial dysfunction is associated with multiple pathologies. It is, therefore, prudent to target mitochondrial quality control mechanisms by using pharmacological approaches. However, there is a scarcity of biologically active molecules, which can interact with mitochondria directly. Currently, the chemical compounds used to induce mitophagy include oligomycin and antimycin A for impaired respiration and acute dissipation of mitochondrial membrane potential by using CCCP/FCCP, the mitochondrial uncouplers. These chemical probes alter the homeostasis of the mitochondria and limit our understanding of the energy regulatory mechanisms. Efforts are underway to find molecules that can bring about selective removal of defective mitochondria without compromising normal mitochondrial respiration. In this report, we have tried to summarize and status of the recently reported modulators of mitophagy.
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Affiliation(s)
- Sheikh Arslan Sehgal
- Department of Bioinformatics, The Islamia University of Bahawalpur, Bahawalpur, Punjab, Pakistan
- Department of Bioinformatics, University of Okara, Okara, Pakistan
| | - Hao Wu
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, China
| | - Muhammad Sajid
- Department of Biotechnology, University of Okara, Okara, Pakistan
| | - Summar Sohail
- Department of Forestry, Kohsar University Murree, Pakistan
| | - Muhammad Ahsan
- Institute of Environmental and Agricultural Sciences, University of Okara, Okara, Punjab, Pakistan
| | | | - Mehreen Riaz
- Department of Zoology, Women University, Swabi, Pakistan
| | | | - Muhammad Nasir Iqbal
- Department of Bioinformatics, The Islamia University of Bahawalpur, Bahawalpur, Punjab, Pakistan
| | - Abbeha Malik
- Department of Bioinformatics, The Islamia University of Bahawalpur, Bahawalpur, Punjab, Pakistan
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11
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Tuli HS, Kaur J, Vashishth K, Sak K, Sharma U, Choudhary R, Behl T, Singh T, Sharma S, Saini AK, Dhama K, Varol M, Sethi G. Molecular mechanisms behind ROS regulation in cancer: A balancing act between augmented tumorigenesis and cell apoptosis. Arch Toxicol 2023; 97:103-120. [PMID: 36443493 DOI: 10.1007/s00204-022-03421-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 11/14/2022] [Indexed: 11/29/2022]
Abstract
ROS include hydroxyl radicals (HO.), superoxide (O2..), and hydrogen peroxide (H2O2). ROS are typically produced under physiological conditions and play crucial roles in living organisms. It is known that ROS, which are created spontaneously by cells through aerobic metabolism in mitochondria, can have either a beneficial or detrimental influence on biological systems. Moderate levels of ROS can cause oxidative damage to proteins, DNA and lipids, which can aid in the pathogenesis of many disorders, including cancer. However, excessive concentrations of ROS can initiate programmed cell death in cancer. Presently, a variety of chemotherapeutic drugs and herbal agents are being investigated to induce ROS-mediated cell death in cancer. Therefore, preserving ROS homeostasis is essential for ensuring normal cell development and survival. On account of a significant association of ROS levels at various concentrations with carcinogenesis in a number of malignancies, further studies are needed to determine the underlying molecular mechanisms and develop the possibilities for intervening in these processes.
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Affiliation(s)
- Hardeep Singh Tuli
- Department of Biotechnology, Maharishi Markandeshwar Engineering College, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana, 133207, India
| | - Jagjit Kaur
- Graduate School of Biomedical Engineering, Faculty of Engineering, The University of New South Wales, Sydney, 2052, Australia
| | - Kanupriya Vashishth
- Advance Cardiac Centre Department of Cardiology, PGIMER, Chandigarh, 160012, India
| | | | - Ujjawal Sharma
- Department of Biotechnology, Maharishi Markandeshwar Engineering College, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana, 133207, India.,Department of Human Genetics and Molecular Medicine, School of Health Sciences, Central University of Punjab, Bathinda, Punjab, 151401, India
| | - Renuka Choudhary
- Department of Biotechnology, Maharishi Markandeshwar Engineering College, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana, 133207, India
| | - Tapan Behl
- Department of Pharmacology, School of Health Sciences & Technology (SoHST), University of Petroleum and Energy Studies, Bidholi, Dehradun, Uttarakhand, 248007, India
| | - Tejveer Singh
- Translanatal Oncology Laboratory, Department of Zoology, Hansraj College, Delhi University, New Delhi, 110007, India
| | - Sheetu Sharma
- Department of Pharmacovigilace and Clinical Research, Chitkara University, Rajpura, 140401, India
| | - Adesh K Saini
- Department of Biotechnology, Maharishi Markandeshwar Engineering College, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana, 133207, India
| | - Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Bareilly, Uttar Pradesh, India
| | - Mehmet Varol
- Department of Molecular Biology and Genetics, Faculty of Science, Mugla Sitki Kocman University, Mugla, 48000, Turkey
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117600, Singapore.
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12
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ArulJothi KN, Kumaran K, Senthil S, Nidhu AB, Munaff N, Janitri VB, Kirubakaran R, Singh SK, Gupt G, Dua K, Krishnan A. Implications of reactive oxygen species in lung cancer and exploiting it for therapeutic interventions. Med Oncol 2023; 40:43. [PMID: 36472716 PMCID: PMC9734980 DOI: 10.1007/s12032-022-01900-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 11/15/2022] [Indexed: 12/12/2022]
Abstract
Lung cancer is the second (11.4%) most commonly diagnosed cancer and the first (18%) to cause cancer-related deaths worldwide. The incidence of lung cancer varies significantly among men, women, and high and low-middle-income countries. Air pollution, inhalable agents, and tobacco smoking are a few of the critical factors that determine lung cancer incidence and mortality worldwide. Reactive oxygen species are known factors of lung carcinogenesis resulting from the xenobiotics and their mechanistic paths are under critical investigation. Reactive oxygen species exhibit dual roles in cells, as a tumorigenic and anti-proliferative factor, depending on spatiotemporal context. During the precancerous state, ROS promotes cancer origination through oxidative stress and base-pair substitution mutations in pro-oncogenes and tumor suppressor genes. At later stages of tumor progression, they help the cancer cells in invasion, and metastases by activating the NF-kB and MAPK pathways. However, at advanced stages, when ROS exceeds the threshold, it promotes cell cycle arrest and induces apoptosis in cancer cells. ROS activates extrinsic apoptosis through death receptors and intrinsic apoptosis through mitochondrial pathways. Moreover, ROS upregulates the expression of beclin-1 which is a critical component to initiate autophagy, another form of programmed cell death. ROS is additionally involved in an intermediatory step in necroptosis, which catalyzes and accelerates this form of cell death. Various therapeutic interventions have been attempted to exploit this cytotoxic potential of ROS to treat different cancers. Growing body of evidence suggests that ROS is also associated with chemoresistance and cancer cell immunity. Considering the multiple roles of ROS, this review highlights the exploitation of ROS for various therapeutic interventions. However, there are still gaps in the literature on the dual roles of ROS and the involvement of ROS in cancer cell immunity and therapy resistance.
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Affiliation(s)
- K. N. ArulJothi
- grid.412742.60000 0004 0635 5080Department of Genetic Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Chennai, 603203 India
| | - K. Kumaran
- grid.412742.60000 0004 0635 5080Department of Genetic Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Chennai, 603203 India
| | - Sowmya Senthil
- grid.412742.60000 0004 0635 5080Department of Genetic Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Chennai, 603203 India
| | - A. B. Nidhu
- grid.412742.60000 0004 0635 5080Department of Genetic Engineering, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Chennai, 603203 India
| | - Nashita Munaff
- grid.412742.60000 0004 0635 5080Department of Biotechnology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Chennai, 603203 India
| | - V. B. Janitri
- grid.262613.20000 0001 2323 3518Rochester Institute of Technology, Rochester, NY USA
| | - Rangasamy Kirubakaran
- grid.444708.b0000 0004 1799 6895Department of Biotechnology, Vinayaka Mission’s Kirupananda Variyar Engineering College, Vinayaka Missions Research Foundation, Salem, Tamil Nadu India
| | - Sachin Kumar Singh
- grid.449005.cSchool of Pharmaceutical Sciences, Lovely Professional University, Jalandhar-Delhi G.T Road, Phagwara, Punjab India ,grid.117476.20000 0004 1936 7611Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW 2007 Australia
| | - Gaurav Gupt
- grid.448952.60000 0004 1767 7579School of Pharmacy, Suresh Gyan Vihar University, Jagatpura, Mahal Road, Jaipur, 302017 India ,grid.412431.10000 0004 0444 045XDepartment of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India ,grid.449906.60000 0004 4659 5193Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University, Dehradun, India
| | - Kamal Dua
- grid.117476.20000 0004 1936 7611Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW 2007 Australia ,grid.117476.20000 0004 1936 7611Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007 Australia
| | - Anand Krishnan
- grid.412219.d0000 0001 2284 638XDepartment of Chemical Pathology, School of Pathology, Faculty of Health Sciences, University of the Free State, Bloemfontein, 9300 South Africa
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13
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Afzal O, Altamimi ASA, Nadeem MS, Alzarea SI, Almalki WH, Tariq A, Mubeen B, Murtaza BN, Iftikhar S, Riaz N, Kazmi I. Nanoparticles in Drug Delivery: From History to Therapeutic Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12244494. [PMID: 36558344 PMCID: PMC9781272 DOI: 10.3390/nano12244494] [Citation(s) in RCA: 51] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/04/2022] [Accepted: 12/14/2022] [Indexed: 05/25/2023]
Abstract
Current research into the role of engineered nanoparticles in drug delivery systems (DDSs) for medical purposes has developed numerous fascinating nanocarriers. This paper reviews the various conventionally used and current used carriage system to deliver drugs. Due to numerous drawbacks of conventional DDSs, nanocarriers have gained immense interest. Nanocarriers like polymeric nanoparticles, mesoporous nanoparticles, nanomaterials, carbon nanotubes, dendrimers, liposomes, metallic nanoparticles, nanomedicine, and engineered nanomaterials are used as carriage systems for targeted delivery at specific sites of affected areas in the body. Nanomedicine has rapidly grown to treat certain diseases like brain cancer, lung cancer, breast cancer, cardiovascular diseases, and many others. These nanomedicines can improve drug bioavailability and drug absorption time, reduce release time, eliminate drug aggregation, and enhance drug solubility in the blood. Nanomedicine has introduced a new era for drug carriage by refining the therapeutic directories of the energetic pharmaceutical elements engineered within nanoparticles. In this context, the vital information on engineered nanoparticles was reviewed and conferred towards the role in drug carriage systems to treat many ailments. All these nanocarriers were tested in vitro and in vivo. In the coming years, nanomedicines can improve human health more effectively by adding more advanced techniques into the drug delivery system.
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Affiliation(s)
- Obaid Afzal
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al Kharj 11942, Saudi Arabia
| | - Abdulmalik S. A. Altamimi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al Kharj 11942, Saudi Arabia
| | - Muhammad Shahid Nadeem
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Sami I. Alzarea
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka 72341, Saudi Arabia
| | - Waleed Hassan Almalki
- Department of Pharmacology, College of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Aqsa Tariq
- Institute of Molecular Biology and Biotechnology (IMBB), The University of Lahore, Lahore 54000, Pakistan
| | - Bismillah Mubeen
- Institute of Molecular Biology and Biotechnology (IMBB), The University of Lahore, Lahore 54000, Pakistan
| | - Bibi Nazia Murtaza
- Department of Zoology, Abbottabad University of Science and Technology (AUST), Abbottabad 22310, Pakistan
| | - Saima Iftikhar
- School of Biological Sciences, University of Punjab, Lahore 54000, Pakistan
| | - Naeem Riaz
- Department of Pharmacy, COMSATS University, Abbottabad 22020, Pakistan
| | - Imran Kazmi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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14
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NEAT1 Confers Radioresistance to Hepatocellular Carcinoma Cells by Inducing PINK1/Parkin-Mediated Mitophagy. Int J Mol Sci 2022; 23:ijms232214397. [PMID: 36430876 PMCID: PMC9692527 DOI: 10.3390/ijms232214397] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/14/2022] [Accepted: 11/18/2022] [Indexed: 11/22/2022] Open
Abstract
A long noncoding RNA, nuclear paraspeckle assembly transcript 1 (NEAT1) variant 1 (NEAT1v1), confers radioresistance to hepatocellular carcinoma (HCC) cells by inducing autophagy via γ-aminobutyric acid A receptor-associated protein (GABARAP). Radiation induces oxidative stress to damage cellular components and organelles, but it remains unclear how NEAT1v1 protects HCC cells from radiation-induced oxidative stress via autophagy. To address this, we precisely investigated NEAT1v1-induced autophagy in irradiated HCC cell lines. X-ray irradiation significantly increased cellular and mitochondrial oxidative stress and mitochondrial DNA content in HCC cells while NEAT1v1 suppressed them. NEAT1v1 concomitantly induced the phosphatase and tensin homolog-induced kinase 1 (PINK1)/parkin-mediated mitophagy. Interestingly, parkin expression was constitutively upregulated in NEAT1v1-overexpressing HCC cells, leading to increased mitochondrial parkin levels. Superoxide dismutase 2 (SOD2) was also upregulated by NEAT1v1, and GABARAP or SOD2 knockdown in NEAT1v1-overexpressing cells increased mitochondrial oxidative stress and mitochondrial DNA content after irradiation. Moreover, it was suggested that SOD2 was involved in NEAT1v1-induced parkin expression, and that GABARAP promoted parkin degradation via mitophagy. This study highlights the unprecedented roles of NEAT1v1 in connecting radioresistance and mitophagy in HCC.
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15
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Zou HX, Qiu BQ, Zhang ZY, Hu T, Wan L, Liu JC, Huang H, Lai SQ. Dysregulated autophagy-related genes in septic cardiomyopathy: Comprehensive bioinformatics analysis based on the human transcriptomes and experimental validation. Front Cardiovasc Med 2022; 9:923066. [PMID: 35983185 PMCID: PMC9378994 DOI: 10.3389/fcvm.2022.923066] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 07/14/2022] [Indexed: 11/13/2022] Open
Abstract
Septic cardiomyopathy (SCM) is severe organ dysfunction caused by sepsis that is associated with poor prognosis, and its pathobiological mechanisms remain unclear. Autophagy is a biological process that has recently been focused on SCM, yet the current understanding of the role of dysregulated autophagy in the pathogenesis of SCM remains limited and uncertain. Exploring the molecular mechanisms of disease based on the transcriptomes of human pathological samples may bring the closest insights. In this study, we analyzed the differential expression of autophagy-related genes in SCM based on the transcriptomes of human septic hearts, and further explored their potential crosstalk and functional pathways. Key functional module and hub genes were identified by constructing a protein–protein interaction network. Eight key genes (CCL2, MYC, TP53, SOD2, HIF1A, CTNNB1, CAT, and ADIPOQ) that regulate autophagy in SCM were identified after validation in a lipopolysaccharide (LPS)-induced H9c2 cardiomyoblast injury model, as well as the autophagic characteristic features. Furthermore, we found that key genes were associated with abnormal immune infiltration in septic hearts and have the potential to serve as biomarkers. Finally, we predicted drugs that may play a protective role in SCM by regulating autophagy based on our results. Our study provides evidence and new insights into the role of autophagy in SCM based on human septic heart transcriptomes, which would be of great benefit to reveal the molecular pathological mechanisms and explore the diagnostic and therapeutic targets for SCM.
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Affiliation(s)
- Hua-Xi Zou
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Institute of Cardiovascular Diseases, Jiangxi Academy of Clinical Medical Sciences, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Cardiovascular Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Bai-Quan Qiu
- Institute of Cardiovascular Diseases, Jiangxi Academy of Clinical Medical Sciences, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Cardiovascular Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Ze-Yu Zhang
- Institute of Nanchang University Trauma Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Tie Hu
- Institute of Cardiovascular Diseases, Jiangxi Academy of Clinical Medical Sciences, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Cardiovascular Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Li Wan
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Institute of Cardiovascular Diseases, Jiangxi Academy of Clinical Medical Sciences, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Ji-Chun Liu
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Institute of Cardiovascular Diseases, Jiangxi Academy of Clinical Medical Sciences, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Cardiovascular Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Huang Huang
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Institute of Cardiovascular Diseases, Jiangxi Academy of Clinical Medical Sciences, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Huang Huang,
| | - Song-Qing Lai
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Institute of Cardiovascular Diseases, Jiangxi Academy of Clinical Medical Sciences, The First Affiliated Hospital of Nanchang University, Nanchang, China
- *Correspondence: Song-Qing Lai,
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16
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Panina SB, Pei J, Baran N, Tjahjono E, Patel S, Alatrash G, Konoplev S, Stolbov LA, Poroikov VV, Konopleva M, Kirienko NV. Novel mitochondria-targeting compounds selectively kill human leukemia cells. Leukemia 2022; 36:2009-2021. [PMID: 35672446 PMCID: PMC11088873 DOI: 10.1038/s41375-022-01614-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 05/19/2022] [Accepted: 05/23/2022] [Indexed: 11/09/2022]
Abstract
Acute myeloid leukemia (AML) is a heterogeneous group of aggressive hematological malignancies commonly associated with treatment resistance, high risk of relapse, and mitochondrial dysregulation. We identified six mitochondria-affecting compounds (PS compounds) that exhibit selective cytotoxicity against AML cells in vitro. Structure-activity relationship studies identified six analogs from two original scaffolds that had over an order of magnitude difference between LD50 in AML and healthy peripheral blood mononuclear cells. Mechanistically, all hit compounds reduced ATP and selectively impaired both basal and ATP-linked oxygen consumption in leukemic cells. Compounds derived from PS127 significantly upregulated production of reactive oxygen species (ROS) in AML cells and triggered ferroptotic, necroptotic, and/or apoptotic cell death in AML cell lines and refractory/relapsed AML primary samples. These compounds exhibited synergy with several anti-leukemia agents in AML, acute lymphoblastic leukemia (ALL), or chronic myelogenous leukemia (CML). Pilot in vivo efficacy studies indicate anti-leukemic efficacy in a MOLM14/GFP/LUC xenograft model, including extended survival in mice injected with leukemic cells pre-treated with PS127B or PS127E and in mice treated with PS127E at a dose of 5 mg/kg. These compounds are promising leads for development of future combinatorial therapeutic approaches for mitochondria-driven hematologic malignancies such as AML, ALL, and CML.
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Affiliation(s)
| | - Jingqi Pei
- Department of BioSciences, Rice University, Houston, TX, USA
| | - Natalia Baran
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Elissa Tjahjono
- Department of BioSciences, Rice University, Houston, TX, USA
| | - Shraddha Patel
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Gheath Alatrash
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Sergej Konoplev
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | | | - Marina Konopleva
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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17
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Lei Y, Huang Y, Wen X, Yin Z, Zhang Z, Klionsky DJ. How Cells Deal with the Fluctuating Environment: Autophagy Regulation under Stress in Yeast and Mammalian Systems. Antioxidants (Basel) 2022; 11:antiox11020304. [PMID: 35204187 PMCID: PMC8868404 DOI: 10.3390/antiox11020304] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 01/28/2022] [Accepted: 01/31/2022] [Indexed: 12/04/2022] Open
Abstract
Eukaryotic cells frequently experience fluctuations of the external and internal environments, such as changes in nutrient, energy and oxygen sources, and protein folding status, which, after reaching a particular threshold, become a type of stress. Cells develop several ways to deal with these various types of stress to maintain homeostasis and survival. Among the cellular survival mechanisms, autophagy is one of the most critical ways to mediate metabolic adaptation and clearance of damaged organelles. Autophagy is maintained at a basal level under normal growing conditions and gets stimulated by stress through different but connected mechanisms. In this review, we summarize the advances in understanding the autophagy regulation mechanisms under multiple types of stress including nutrient, energy, oxidative, and ER stress in both yeast and mammalian systems.
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Affiliation(s)
- Yuchen Lei
- Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA; (Y.L.); (Y.H.); (X.W.); (Z.Y.); (Z.Z.)
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Yuxiang Huang
- Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA; (Y.L.); (Y.H.); (X.W.); (Z.Y.); (Z.Z.)
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Xin Wen
- Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA; (Y.L.); (Y.H.); (X.W.); (Z.Y.); (Z.Z.)
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Zhangyuan Yin
- Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA; (Y.L.); (Y.H.); (X.W.); (Z.Y.); (Z.Z.)
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Zhihai Zhang
- Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA; (Y.L.); (Y.H.); (X.W.); (Z.Y.); (Z.Z.)
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Daniel J. Klionsky
- Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA; (Y.L.); (Y.H.); (X.W.); (Z.Y.); (Z.Z.)
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA
- Correspondence:
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18
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Chen H, Zhang H, Cao L, Cui J, Ma X, Zhao C, Yin S, Hu H. Glucose Limitation Sensitizes Cancer Cells to Selenite-Induced Cytotoxicity via SLC7A11-Mediated Redox Collapse. Cancers (Basel) 2022; 14:cancers14020345. [PMID: 35053507 PMCID: PMC8773648 DOI: 10.3390/cancers14020345] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 01/05/2022] [Accepted: 01/07/2022] [Indexed: 12/23/2022] Open
Abstract
Simple Summary Selenite, a representative inorganic form of selenium, is preferentially accumulated in tumors. The therapeutic potential of sodium selenite in tumors has received significant attention. However, the effect of sodium selenite in the treatment of established tumors is hampered by its systemic toxicities. In this study, we found selenite exerted a stronger lethality to the cancer cells under the condition of glucose limitation in vitro and an enhanced inhibitory effect on tumor growth when combined with intermittent fasting in vivo. In addition, this treatment showed no obvious toxicity to normal cells and mice. The findings of the present study provide an effective and practical approach for increasing the therapeutic window of selenite and imply that combination of selenite and fasting holds promising potential to be developed a clinically useful regimen for treating certain types of cancer. Abstract Combination of intermittent fasting and chemotherapy has been drawn an increasing attention because of the encouraging efficacy. In this study, we evaluated the anti-cancer effect of combination of glucose limitation and selenite (Se), a representative inorganic form of selenium, that is preferentially accumulated in tumors. Results showed that cytotoxic effect of selenite on cancer cells, but not on normal cells, was significantly enhanced in response to the combination of selenite and glucose limitation. Furthermore, in vivo therapeutic efficacy of combining selenite with fasting was dramatically improved in xenograft models of lung and colon cancer. Mechanistically, we found that SLC7A11 expression in cancer cells was up-regulated by selenite both in vitro and in vivo. The elevated SLC7A11 led to cystine accumulation, NADPH depletion and the conversion of cystine to cysteine inhibition, which in turn boosted selenite-mediated reactive oxygen species (ROS), followed by enhancement of selenite-mediated cytotoxic effect. The findings of the present study provide an effective and practical approach for increasing the therapeutic window of selenite and imply that combination of selenite and fasting holds promising potential to be developed a clinically useful regimen for treating certain types of cancer.
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19
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Denisenko TV, Gogvadze V, Zhivotovsky B. Mitophagy in carcinogenesis and cancer treatment. Discov Oncol 2021; 12:58. [PMID: 35201480 PMCID: PMC8777571 DOI: 10.1007/s12672-021-00454-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 11/17/2021] [Indexed: 02/07/2023] Open
Abstract
In order to maintain a functional mitochondrial network, cells have developed a quality control mechanism, namely mitophagy. This process can be induced through different pathways. The most studied is the so-called PINK1/Parkin pathway, which is associated with ubiquitylation of several mitochondrial proteins that were initially found to be related to Parkinson's disease. Another type of mitophagy is known as receptor-mediated mitophagy, which includes proteins, such as BNIP3 and BNIP3L, also known as Nix. Through these two mechanisms, mitophagy fulfills its functions and maintains cellular homeostasis. Here, we summarize the current knowledge about the mechanisms of mitophagy regulation and their interplay with cancer progression as well as anticancer treatment.
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Affiliation(s)
| | - Vladimir Gogvadze
- MV Lomonosov Moscow State University, 119991, Moscow, Russia
- Institute of Environmental Medicine, Division of Toxicology, Karolinska Institutet, Box 210, 171 77, Stockholm, Sweden
| | - Boris Zhivotovsky
- MV Lomonosov Moscow State University, 119991, Moscow, Russia.
- Institute of Environmental Medicine, Division of Toxicology, Karolinska Institutet, Box 210, 171 77, Stockholm, Sweden.
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20
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Mitochondria-affecting small molecules ameliorate proteostasis defects associated with neurodegenerative diseases. Sci Rep 2021; 11:17733. [PMID: 34489512 PMCID: PMC8421394 DOI: 10.1038/s41598-021-97148-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 08/12/2021] [Indexed: 02/06/2023] Open
Abstract
Macroautophagic recycling of dysfunctional mitochondria, known as mitophagy, is essential for mitochondrial homeostasis and cell viability. Accumulation of defective mitochondria and impaired mitophagy have been widely implicated in many neurodegenerative diseases, and loss-of-function mutations of PINK1 and Parkin, two key regulators of mitophagy, are amongst the most common causes of heritable parkinsonism. This has led to the hypothesis that pharmacological stimulation of mitophagy may be a feasible approach to combat neurodegeneration. Toward this end, we screened ~ 45,000 small molecules using a high-throughput, whole-organism, phenotypic screen that monitored accumulation of PINK-1 protein, a key event in mitophagic activation, in a Caenorhabditis elegans strain carrying a Ppink-1::PINK-1::GFP reporter. We obtained eight hits that increased mitochondrial fragmentation and autophagosome formation. Several of the compounds also reduced ATP production, oxygen consumption, mitochondrial mass, and/or mitochondrial membrane potential. Importantly, we found that treatment with two compounds, which we named PS83 and PS106 (more commonly known as sertraline) reduced neurodegenerative disease phenotypes, including delaying paralysis in a C. elegans β-amyloid aggregation model in a PINK-1-dependent manner. This report presents a promising step toward the identification of compounds that will stimulate mitochondrial turnover.
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21
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Hongprasit A, Okamoto Y, Toida T, Ogra Y. Comparison of quantification of selenocyanate and thiocyanate in cultured mammalian cells between HPLC-fluorescence detector and HPLC-inductively coupled plasma mass spectrometer. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1181:122924. [PMID: 34508979 DOI: 10.1016/j.jchromb.2021.122924] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 08/03/2021] [Accepted: 09/01/2021] [Indexed: 11/28/2022]
Abstract
The simultaneous detection of cyanide (CN), thiocyanate (SCN), and selenocyanate (SeCN) by a HPLC-fluorescence detector (FLD) with the post-column König reaction was recently reported. SCN and SeCN are also detectable by HPLC-inductively coupled plasma mass spectrometry (HPLC-ICP-MS) because sulfur and selenium can be detected, respectively, without any pre- or post-treatment. ICP-MS has high sensitivity for selenium and sulfur detection and is robust to sample matrices. In this study, we compared HPLC-FLD with the post-column König reaction and HPLC-ICP-MS in terms of SCN and SeCN detection sensitivity and linearity. The limit of detection (LOD) for SCN indicated that HPLC-FLD with the post-column König reaction was 354 times more sensitive than HPLC-ICP-MS. Likewise, the LOD for SeCN indicated that HPLC-FLD was 51 times more sensitive than HPLC-ICP-MS. These results demonstrated that HPLC-FLD was a more suitable technique for SeCN and SCN detection than HPLC-ICP-MS. We previously reported that SeCN was generated in selenite-exposed mammalian cells to detoxify excess selenite. HPLC-FLD with the post-column König reaction enabled good separation and detection for quantifying SCN and SeCN in mammalian cell lines exposed to selenite. The intracellular SCN and SeCN concentrations determined by this technique suggested differences in the metabolic capacity for selenite to form SeCN among the cell lines. In addition, since the amount of intracellular SCN and SeCN were significantly decreased by pretreatment of myeloperoxidase (MPO) inhibitors, SCN and SeCN were resulted from the interaction of sulfur and selenium with endogenous CN, respectively, generated with MPO.
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Affiliation(s)
- Aphinan Hongprasit
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba 260-8675, Japan
| | - Yusuke Okamoto
- Division of Foods, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa 210-9501, Japan
| | - Toshihiko Toida
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba 260-8675, Japan
| | - Yasumitsu Ogra
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba 260-8675, Japan.
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22
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Ahmadpour ST, Desquiret-Dumas V, Yikilmaz U, Dartier J, Domingo I, Wetterwald C, Orre C, Gueguen N, Brisson L, Mahéo K, Dumas JF. Doxorubicin-Induced Autophagolysosome Formation Is Partly Prevented by Mitochondrial ROS Elimination in DOX-Resistant Breast Cancer Cells. Int J Mol Sci 2021; 22:ijms22179283. [PMID: 34502189 PMCID: PMC8431121 DOI: 10.3390/ijms22179283] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 08/18/2021] [Accepted: 08/24/2021] [Indexed: 01/19/2023] Open
Abstract
Since its discovery, mitophagy has been viewed as a protective mechanism used by cancer cells to prevent the induction of mitochondrial apoptosis. Most cancer treatments directly or indirectly cause mitochondrial dysfunction in order to trigger signals for cell death. Elimination of these dysfunctional mitochondria by mitophagy could thus prevent the initiation of the apoptotic cascade. In breast cancer patients, resistance to doxorubicin (DOX), one of the most widely used cancer drugs, is an important cause of poor clinical outcomes. However, the role played by mitophagy in the context of DOX resistance in breast cancer cells is not well understood. We therefore tried to determine whether an increase in mitophagic flux was associated with the resistance of breast cancer cells to DOX. Our first objective was to explore whether DOX-resistant breast cancer cells were characterized by conditions that favor mitophagy induction. We next tried to determine whether mitophagic flux was increased in DOX-resistant cells in response to DOX treatment. For this purpose, the parental (MCF-7) and DOX-resistant (MCF-7dox) breast cancer cell lines were used. Our results show that mitochondrial reactive oxygen species (ROS) production and hypoxia-inducible factor-1 alpha (HIF-1 alpha) expression are higher in MCF-7dox in a basal condition compared to MCF-7, suggesting DOX-resistant breast cancer cells are prone to stimuli to induce a mitophagy-related event. Our results also showed that, in response to DOX, autophagolysosome formation is induced in DOX-resistant breast cancer cells. This mitophagic step following DOX treatment seems to be partly due to mitochondrial ROS production as autophagolysosome formation is moderately decreased by the mitochondrial antioxidant mitoTEMPO.
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Affiliation(s)
- Seyedeh Tayebeh Ahmadpour
- Inserm UMR1069 Nutrition, Croissance et Cancer, Université de Tours, 37032 Tours, France; (U.Y.); (J.D.); (I.D.); (L.B.); (K.M.)
- Correspondence: (S.T.A.); (J.-F.D.); Tel.: +33-247-366-059 (J.-F.D.); Fax: +33-247-366-226 (J.-F.D.)
| | - Valérie Desquiret-Dumas
- MitoLab Team, Institut MitoVasc, CNRS UMR6015, INSERM U1083, Angers University, 49933 Angers, France; (V.D.-D.); (C.O.); (N.G.)
- Department of Biochemistry and Molecular Biology, University Hospital Angers, 49933 Angers, France;
| | - Ulku Yikilmaz
- Inserm UMR1069 Nutrition, Croissance et Cancer, Université de Tours, 37032 Tours, France; (U.Y.); (J.D.); (I.D.); (L.B.); (K.M.)
| | - Julie Dartier
- Inserm UMR1069 Nutrition, Croissance et Cancer, Université de Tours, 37032 Tours, France; (U.Y.); (J.D.); (I.D.); (L.B.); (K.M.)
| | - Isabelle Domingo
- Inserm UMR1069 Nutrition, Croissance et Cancer, Université de Tours, 37032 Tours, France; (U.Y.); (J.D.); (I.D.); (L.B.); (K.M.)
| | - Celine Wetterwald
- Department of Biochemistry and Molecular Biology, University Hospital Angers, 49933 Angers, France;
| | - Charlotte Orre
- MitoLab Team, Institut MitoVasc, CNRS UMR6015, INSERM U1083, Angers University, 49933 Angers, France; (V.D.-D.); (C.O.); (N.G.)
| | - Naïg Gueguen
- MitoLab Team, Institut MitoVasc, CNRS UMR6015, INSERM U1083, Angers University, 49933 Angers, France; (V.D.-D.); (C.O.); (N.G.)
- Department of Biochemistry and Molecular Biology, University Hospital Angers, 49933 Angers, France;
| | - Lucie Brisson
- Inserm UMR1069 Nutrition, Croissance et Cancer, Université de Tours, 37032 Tours, France; (U.Y.); (J.D.); (I.D.); (L.B.); (K.M.)
| | - Karine Mahéo
- Inserm UMR1069 Nutrition, Croissance et Cancer, Université de Tours, 37032 Tours, France; (U.Y.); (J.D.); (I.D.); (L.B.); (K.M.)
| | - Jean-François Dumas
- Inserm UMR1069 Nutrition, Croissance et Cancer, Université de Tours, 37032 Tours, France; (U.Y.); (J.D.); (I.D.); (L.B.); (K.M.)
- Correspondence: (S.T.A.); (J.-F.D.); Tel.: +33-247-366-059 (J.-F.D.); Fax: +33-247-366-226 (J.-F.D.)
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23
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Cheng Z, Yu S, He W, Li J, Xu T, Xue J, Shi P, Chen S, Li Y, Hong S, Xiao H. Selenite Induces Cell Cycle Arrest and Apoptosis via Reactive Oxygen Species-Dependent Inhibition of the AKT/mTOR Pathway in Thyroid Cancer. Front Oncol 2021; 11:668424. [PMID: 34094961 PMCID: PMC8176115 DOI: 10.3389/fonc.2021.668424] [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: 02/16/2021] [Accepted: 03/29/2021] [Indexed: 01/11/2023] Open
Abstract
Thyroid cancer is the most common endocrine malignancy, and its incidence has increased in the past decades. Selenium has been shown to have therapeutic effects against several tumors. However, its role in thyroid cancer and its underlying molecular mechanism remains to be explored. In the present study, we demonstrated that sodium selenite significantly decreased cell viability and induced G0/G1 cell cycle arrest and apoptosis in thyroid cancer cells in a dose-dependent manner. Transcriptomics revealed that sodium selenite induced intracellular reactive oxygen species (ROS) by promoting oxidative phosphorylation. Increased intracellular ROS levels inhibited the AKT/mTOR signaling pathway and upregulated EIF4EBP3. Intracellular ROS inhibition by N-acetylcysteine (NAC) ameliorated the cellular effects of sodium selenite. The in vitro findings were reproduced in xenograft thyroid tumor models. Our data demonstrated that sodium selenite exhibits strong anticancer effects against thyroid cancer cells, which involved ROS-mediated inhibition of the AKT/mTOR pathway. This suggests that sodium selenite may serve as a therapeutic option for advanced thyroid cancer.
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Affiliation(s)
- Zhen Cheng
- Department of Endocrinology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Shuang Yu
- Department of Endocrinology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Weiman He
- Department of Endocrinology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jie Li
- Department of Breast and Thyroid Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Tianyi Xu
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Junyu Xue
- Department of Endocrinology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Peijie Shi
- Department of Endocrinology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Shuwei Chen
- Department of Head and Neck Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Yanbing Li
- Department of Endocrinology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Shubin Hong
- Department of Endocrinology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Haipeng Xiao
- Department of Endocrinology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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24
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Hu W, Zhao C, Hu H, Yin S. Food Sources of Selenium and Its Relationship with Chronic Diseases. Nutrients 2021; 13:nu13051739. [PMID: 34065478 PMCID: PMC8160805 DOI: 10.3390/nu13051739] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 05/18/2021] [Accepted: 05/18/2021] [Indexed: 12/16/2022] Open
Abstract
Selenium (Se) is an essential micronutrient for mammals, and its deficiency seriously threatens human health. A series of biofortification strategies have been developed to produce Se-enriched foods for combating Se deficiency. Although there have been some inconsistent results, extensive evidence has suggested that Se supplementation is beneficial for preventing and treating several chronic diseases. Understanding the association between Se and chronic diseases is essential for guiding clinical practice, developing effective public health policies, and ultimately counteracting health issues associated with Se deficiency. The current review will discuss the food sources of Se, biofortification strategies, metabolism and biological activities, clinical disorders and dietary reference intakes, as well as the relationship between Se and health outcomes, especially cardiovascular disease, diabetes, chronic inflammation, cancer, and fertility. Additionally, some concepts were proposed, there is a non-linear U-shaped dose-responsive relationship between Se status and health effects: subjects with a low baseline Se status can benefit from Se supplementation, while Se supplementation in populations with an adequate or high status may potentially increase the risk of some diseases. In addition, at supra-nutritional levels, methylated Se compounds exerted more promising cancer chemo-preventive efficacy in preclinical trials.
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25
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Naderi M, Puar P, Zonouzi-Marand M, Chivers DP, Niyogi S, Kwong RWM. A comprehensive review on the neuropathophysiology of selenium. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 767:144329. [PMID: 33445002 DOI: 10.1016/j.scitotenv.2020.144329] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 12/05/2020] [Accepted: 12/05/2020] [Indexed: 05/25/2023]
Abstract
As an essential micronutrient, selenium (Se) exerts its biological function as a catalytic entity in a variety of enzymes. From a toxicological perspective, however, Se can become extremely toxic at concentrations slightly above its nutritional levels. Over the last few decades, there has been a growing level of concern worldwide regarding the adverse effects of both inorganic and organic Se compounds on a broad spectrum of neurological functions. A wealth of evidence has shown that exposure to excess Se may compromise the normal functioning of various key proteins, neurotransmitter systems (the glutamatergic, dopaminergic, serotonergic, and cholinergic systems), and signaling molecules involved in the control and regulation of cognitive, behavioral, and neuroendocrine functions. Elevated Se exposure has also been suspected to be a risk factor for the development of several neurodegenerative and neuropsychiatric diseases. Nonetheless, despite the various deleterious effects of excess Se on the central nervous system (CNS), Se neurotoxicity and negative behavioral outcomes are still disregarded at the expense of its beneficial health effects. This review focuses on the current state of knowledge regarding the neurobehavioral effects of Se and discusses its potential mode of action on different aspects of the central and peripheral nervous systems. This review also provides a brief history of Se discovery and uses, its physicochemical properties, biological roles in the CNS, environmental occurrence, and toxicity. We also review potential links between exposure to different forms of Se compounds and aberrant neurobehavioral functions in humans and animals, and identify key knowledge gaps and hypotheses for future research.
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Affiliation(s)
- Mohammad Naderi
- Department of Biology, York University, Toronto, ON M3J 1P3, Canada.
| | - Pankaj Puar
- Department of Biology, York University, Toronto, ON M3J 1P3, Canada
| | | | - Douglas P Chivers
- Department of Biology, University of Saskatchewan, 112 Science Place, Saskatoon, SK S7N 5E2, Canada
| | - Som Niyogi
- Department of Biology, University of Saskatchewan, 112 Science Place, Saskatoon, SK S7N 5E2, Canada; Toxicology Centre, University of Saskatchewan, 44 Campus Drive, Saskatoon, SK S7N 5B3, Canada
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26
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Panina SB, Pei J, Kirienko NV. Mitochondrial metabolism as a target for acute myeloid leukemia treatment. Cancer Metab 2021; 9:17. [PMID: 33883040 PMCID: PMC8058979 DOI: 10.1186/s40170-021-00253-w] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 03/30/2021] [Indexed: 02/06/2023] Open
Abstract
Acute myeloid leukemias (AML) are a group of aggressive hematologic malignancies resulting from acquired genetic mutations in hematopoietic stem cells that affect patients of all ages. Despite decades of research, standard chemotherapy still remains ineffective for some AML subtypes and is often inappropriate for older patients or those with comorbidities. Recently, a number of studies have identified unique mitochondrial alterations that lead to metabolic vulnerabilities in AML cells that may present viable treatment targets. These include mtDNA, dependency on oxidative phosphorylation, mitochondrial metabolism, and pro-survival signaling, as well as reactive oxygen species generation and mitochondrial dynamics. Moreover, some mitochondria-targeting chemotherapeutics and their combinations with other compounds have been FDA-approved for AML treatment. Here, we review recent studies that illuminate the effects of drugs and synergistic drug combinations that target diverse biomolecules and metabolic pathways related to mitochondria and their promise in experimental studies, clinical trials, and existing chemotherapeutic regimens.
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Affiliation(s)
| | - Jingqi Pei
- Department of BioSciences, Rice University, Houston, TX, USA
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27
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Mechanism and effect of stress granule formation in cancer and its potential roles in breast cancer therapy. Genes Dis 2021; 9:659-667. [PMID: 35782985 PMCID: PMC9243343 DOI: 10.1016/j.gendis.2021.02.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 02/04/2021] [Accepted: 02/10/2021] [Indexed: 02/06/2023] Open
Abstract
Stress granules are non-membranous cytoplasmic foci induced by various stress conditions. It is a protective strategy used by cells to suppress overall translation during stress. In cancer cells, it was thought that the formation of stress granules could protect them from apoptosis and induces resistance towards anti-cancer drugs or radiation treatment which makes the stress granules a potential target for cancer treatment. However, most of our understanding of stress granules are still in the stage of molecular and cell biology, and a transitional gap for its actual effect on clinical settings remains. In this review, we summarize the mechanism and effect of stress granules formation in cancer and try to illuminate its potential applications in cancer therapy, using breast cancer as an example.
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28
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Wandt VK, Winkelbeiner N, Bornhorst J, Witt B, Raschke S, Simon L, Ebert F, Kipp AP, Schwerdtle T. A matter of concern - Trace element dyshomeostasis and genomic stability in neurons. Redox Biol 2021; 41:101877. [PMID: 33607499 PMCID: PMC7902532 DOI: 10.1016/j.redox.2021.101877] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 12/18/2020] [Accepted: 01/20/2021] [Indexed: 02/09/2023] Open
Abstract
Neurons are post-mitotic cells in the brain and their integrity is of central importance to avoid neurodegeneration. Yet, the inability of self-replenishment of post-mitotic cells results in the need to withstand challenges from numerous stressors during life. Neurons are exposed to oxidative stress due to high oxygen consumption during metabolic activity in the brain. Accordingly, DNA damage can occur and accumulate, resulting in genome instability. In this context, imbalances in brain trace element homeostasis are a matter of concern, especially regarding iron, copper, manganese, zinc, and selenium. Although trace elements are essential for brain physiology, excess and deficient conditions are considered to impair neuronal maintenance. Besides increasing oxidative stress, DNA damage response and repair of oxidative DNA damage are affected by trace elements. Hence, a balanced trace element homeostasis is of particular importance to safeguard neuronal genome integrity and prevent neuronal loss. This review summarises the current state of knowledge on the impact of deficient, as well as excessive iron, copper, manganese, zinc, and selenium levels on neuronal genome stability. Post-mitotic neurons show an increased vulnerability to oxidative stress. Trace element dyshomeostasis impairs neuronal genome maintenance, affecting DNA damage response as well as DNA repair. The review summarises the effects of excessive and deficient trace element levels neuronal genome stability maintenance.
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Affiliation(s)
- Viktoria K Wandt
- Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany; TraceAge - DFG Research Unit on Interactions of Essential Trace Elements in Healthy and Diseased Elderly (FOR 2558), Berlin-Potsdam-Jena-Wuppertal, Germany.
| | - Nicola Winkelbeiner
- Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany; TraceAge - DFG Research Unit on Interactions of Essential Trace Elements in Healthy and Diseased Elderly (FOR 2558), Berlin-Potsdam-Jena-Wuppertal, Germany.
| | - Julia Bornhorst
- TraceAge - DFG Research Unit on Interactions of Essential Trace Elements in Healthy and Diseased Elderly (FOR 2558), Berlin-Potsdam-Jena-Wuppertal, Germany; Food Chemistry, Faculty of Mathematics and Natural Sciences, University of Wuppertal, Gaußstr. 20, 42119, Wuppertal, Germany.
| | - Barbara Witt
- Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany.
| | - Stefanie Raschke
- Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany.
| | - Luise Simon
- Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany; TraceAge - DFG Research Unit on Interactions of Essential Trace Elements in Healthy and Diseased Elderly (FOR 2558), Berlin-Potsdam-Jena-Wuppertal, Germany.
| | - Franziska Ebert
- Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany; TraceAge - DFG Research Unit on Interactions of Essential Trace Elements in Healthy and Diseased Elderly (FOR 2558), Berlin-Potsdam-Jena-Wuppertal, Germany.
| | - Anna P Kipp
- TraceAge - DFG Research Unit on Interactions of Essential Trace Elements in Healthy and Diseased Elderly (FOR 2558), Berlin-Potsdam-Jena-Wuppertal, Germany; Department of Molecular Nutritional Physiology, Institute of Nutritional Sciences, Friedrich Schiller University Jena, Dornburger Str. 24, 07743, Jena, Germany.
| | - Tanja Schwerdtle
- Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany; TraceAge - DFG Research Unit on Interactions of Essential Trace Elements in Healthy and Diseased Elderly (FOR 2558), Berlin-Potsdam-Jena-Wuppertal, Germany; German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Str. 8-10, 10589, Berlin, Germany.
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29
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McCormick JJ, Dokladny K, Moseley PL, Kenny GP. Autophagy and heat: a potential role for heat therapy to improve autophagic function in health and disease. J Appl Physiol (1985) 2021; 130:1-9. [DOI: 10.1152/japplphysiol.00542.2020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Autophagy is a crucial cell survival mechanism that involves the degradation and recycling of old or damaged organelles and proteins to maintain cellular homeostasis. Impairments in autophagy are central to the pathogenesis of many conditions including metabolic and neurodegenerative disorders, cardiovascular and pulmonary diseases, diabetes, and aging. Although various pharmacological agents may be able to stimulate autophagic function, to our knowledge, few interventions exist that have been deemed safe and effective in humans. An emerging body of evidence suggests that targeting the autophagic pathway via passive heating (heat therapy) may stimulate autophagic function. Therefore, the primary focus of the present review is to analyze the mechanisms in which passive heating induces autophagy as defined by in vitro and in vivo (animal and human) models. Our secondary focus is to examine the implications of utilizing passive heating to restore dysfunctional autophagy in chronic disease and aging. Finally, we discuss potential therapeutic strategies to implement passive heating to stimulate autophagic function in humans.
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Affiliation(s)
- James J. McCormick
- Human and Environmental Physiology Research Unit, University of Ottawa, Ottawa, Ontario, Canada
| | - Karol Dokladny
- Department of Internal Medicine, The University of New Mexico, Albuquerque, New Mexico
| | - Pope L. Moseley
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Glen P. Kenny
- Human and Environmental Physiology Research Unit, University of Ottawa, Ottawa, Ontario, Canada
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30
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Zein L, Fulda S, Kögel D, van Wijk SJL. Organelle-specific mechanisms of drug-induced autophagy-dependent cell death. Matrix Biol 2020; 100-101:54-64. [PMID: 33321172 DOI: 10.1016/j.matbio.2020.12.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/07/2020] [Accepted: 12/10/2020] [Indexed: 12/12/2022]
Abstract
The conserved catabolic process of autophagy is an important control mechanism that degrades cellular organelles, debris and pathogens in autolysosomes. Although autophagy primarily protects against cellular insults, nutrient starvation or oxidative stress, hyper-activation of autophagy is also believed to cause autophagy-dependent cell death (ADCD). ADCD is a caspase-independent form of programmed cell death (PCD), characterized by an over-activation of autophagy, leading to prominent self-digestion of cellular material in autolysosomes beyond the point of cell survival. ADCD plays important roles in the development of lower organisms, but also in the response of cancer cells upon exposure of specific drugs or natural compounds. Importantly, the induction of ADCD as an alternative cell death pathway is of special interest in apoptosis-resistant cancer types and serves as an attractive and potential therapeutic option. Although the mechanisms of ADCD are diverse and not yet fully understood, both non-selective (bulk) autophagy and organelle-specific types of autophagy are believed to be involved in this type of cell death. Accordingly, several ADCD-inducing drugs are known to trigger severe mitochondrial damage and endoplasmic reticulum (ER) stress, whereas the contribution of other cell organelles, like ribosomes or peroxisomes, to the control of ADCD is not well understood. In this review, we highlight the general mechanisms of ADCD and discuss the current evidence for mitochondria- and ER-specific killing mechanisms of ADCD-inducing drugs.
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Affiliation(s)
- Laura Zein
- Institute for Experimental Cancer Research in Pediatrics, Goethe-University, Komturstrasse 3a, 60528 Frankfurt am Main, Germany
| | - Simone Fulda
- Institute for Experimental Cancer Research in Pediatrics, Goethe-University, Komturstrasse 3a, 60528 Frankfurt am Main, Germany
| | - Donat Kögel
- Experimental Neurosurgery, Goethe-University Hospital, Frankfurt, Germany; German Cancer Consortium (DKTK), Partner Site Frankfurt, Germany
| | - Sjoerd J L van Wijk
- Institute for Experimental Cancer Research in Pediatrics, Goethe-University, Komturstrasse 3a, 60528 Frankfurt am Main, Germany.
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31
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Manda K, Kriesen S, Hildebrandt G. The solvent and treatment regimen of sodium selenite cause its effects to vary on the radiation response of human bronchial cells from tumour and normal tissues. Med Oncol 2020; 37:115. [PMID: 33205219 PMCID: PMC7671986 DOI: 10.1007/s12032-020-01437-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 10/30/2020] [Indexed: 01/08/2023]
Abstract
Sodium selenite is often given to moderate the side effects of cancer therapy to enhance the cellular defence of non-cancerous cells. To determine whether sodium selenite during radiotherapy protects not only normal cells but also cancer cells, which would imply a reduction of the desired effect of irradiation on tumour during radiotherapy, the effect of the combined treatment of irradiation and sodium selenite was investigated. Human bronchial cells from carcinoma (A549) and normal tissue (BEAS-2B) were treated with sodium selenite and effects on growth and in combination with radiation on metabolic activity and cell cycle distribution were studied. The influence on radiosensitivity was determined via colony forming assays using different solvents of sodium selenite and treatment schedules. It was shown that sodium selenite inhibits growth and influences cell cycle distribution of both normal and tumour cells. Metabolic activity of normal cells decreased more rapidly compared to that of cancer cells. The influence of sodium selenite on radiation response depended on the different treatment schedules and was strongly affected by the solvent of the agent. It could be shown that the effect of sodium selenite on radiation response is strongly dependent on the respective experimental in vitro conditions and ranges from lead to an initially suspected but ultimately no real radioprotection to radiosensitizing up to no effect in one and the same cell line. This might be a reason for controversially described cell responses to radiation under the influence of sodium selenite in studies so far.
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Affiliation(s)
- Katrin Manda
- Department of Radiotherapy and Radiation Oncology, University Medical Center Rostock, Suedring 75, 18059 Rostock, Germany
| | - Stephan Kriesen
- Department of Radiotherapy and Radiation Oncology, University Medical Center Rostock, Suedring 75, 18059 Rostock, Germany
| | - Guido Hildebrandt
- Department of Radiotherapy and Radiation Oncology, University Medical Center Rostock, Suedring 75, 18059 Rostock, Germany
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32
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Coelho BP, Fernandes CFDL, Boccacino JM, Souza MCDS, Melo-Escobar MI, Alves RN, Prado MB, Iglesia RP, Cangiano G, Mazzaro GLR, Lopes MH. Multifaceted WNT Signaling at the Crossroads Between Epithelial-Mesenchymal Transition and Autophagy in Glioblastoma. Front Oncol 2020; 10:597743. [PMID: 33312955 PMCID: PMC7706883 DOI: 10.3389/fonc.2020.597743] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 10/19/2020] [Indexed: 12/17/2022] Open
Abstract
Tumor cells can employ epithelial-mesenchymal transition (EMT) or autophagy in reaction to microenvironmental stress. Importantly, EMT and autophagy negatively regulate each other, are able to interconvert, and both have been shown to contribute to drug-resistance in glioblastoma (GBM). EMT has been considered one of the mechanisms that confer invasive properties to GBM cells. Autophagy, on the other hand, may show dual roles as either a GBM-promoter or GBM-suppressor, depending on microenvironmental cues. The Wingless (WNT) signaling pathway regulates a plethora of developmental and biological processes such as cellular proliferation, adhesion and motility. As such, GBM demonstrates deregulation of WNT signaling in favor of tumor initiation, proliferation and invasion. In EMT, WNT signaling promotes induction and stabilization of different EMT activators. WNT activity also represses autophagy, while nutrient deprivation induces β-catenin degradation via autophagic machinery. Due to the importance of the WNT pathway to GBM, and the role of WNT signaling in EMT and autophagy, in this review we highlight the effects of the WNT signaling in the regulation of both processes in GBM, and discuss how the crosstalk between EMT and autophagy may ultimately affect tumor biology.
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Affiliation(s)
- Bárbara Paranhos Coelho
- Laboratory of Neurobiology and Stem Cells, Institute of Biomedical Sciences, Department of Cell and Developmental Biology, University of São Paulo, São Paulo, Brazil
| | - Camila Felix de Lima Fernandes
- Laboratory of Neurobiology and Stem Cells, Institute of Biomedical Sciences, Department of Cell and Developmental Biology, University of São Paulo, São Paulo, Brazil
| | - Jacqueline Marcia Boccacino
- Laboratory of Neurobiology and Stem Cells, Institute of Biomedical Sciences, Department of Cell and Developmental Biology, University of São Paulo, São Paulo, Brazil
| | - Maria Clara da Silva Souza
- Laboratory of Neurobiology and Stem Cells, Institute of Biomedical Sciences, Department of Cell and Developmental Biology, University of São Paulo, São Paulo, Brazil
| | - Maria Isabel Melo-Escobar
- Laboratory of Neurobiology and Stem Cells, Institute of Biomedical Sciences, Department of Cell and Developmental Biology, University of São Paulo, São Paulo, Brazil
| | - Rodrigo Nunes Alves
- Laboratory of Neurobiology and Stem Cells, Institute of Biomedical Sciences, Department of Cell and Developmental Biology, University of São Paulo, São Paulo, Brazil
| | - Mariana Brandão Prado
- Laboratory of Neurobiology and Stem Cells, Institute of Biomedical Sciences, Department of Cell and Developmental Biology, University of São Paulo, São Paulo, Brazil
| | - Rebeca Piatniczka Iglesia
- Laboratory of Neurobiology and Stem Cells, Institute of Biomedical Sciences, Department of Cell and Developmental Biology, University of São Paulo, São Paulo, Brazil
| | - Giovanni Cangiano
- Laboratory of Neurobiology and Stem Cells, Institute of Biomedical Sciences, Department of Cell and Developmental Biology, University of São Paulo, São Paulo, Brazil
| | - Giulia La Rocca Mazzaro
- Laboratory of Neurobiology and Stem Cells, Institute of Biomedical Sciences, Department of Cell and Developmental Biology, University of São Paulo, São Paulo, Brazil
| | - Marilene Hohmuth Lopes
- Laboratory of Neurobiology and Stem Cells, Institute of Biomedical Sciences, Department of Cell and Developmental Biology, University of São Paulo, São Paulo, Brazil
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Huang C, Yan S, Zhang Z. Maintaining the balance of TDP-43, mitochondria, and autophagy: a promising therapeutic strategy for neurodegenerative diseases. Transl Neurodegener 2020; 9:40. [PMID: 33126923 PMCID: PMC7597011 DOI: 10.1186/s40035-020-00219-w] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 10/14/2020] [Indexed: 02/06/2023] Open
Abstract
Mitochondria are the energy center of cell operations and are involved in physiological functions and maintenance of metabolic balance and homeostasis in the body. Alterations of mitochondrial function are associated with a variety of degenerative and acute diseases. As mitochondria age in cells, they gradually become inefficient and potentially toxic. Acute injury can trigger the permeability of mitochondrial membranes, which can lead to apoptosis or necrosis. Transactive response DNA-binding protein 43 kDa (TDP-43) is a protein widely present in cells. It can bind to RNA, regulate a variety of RNA processes, and play a role in the formation of multi-protein/RNA complexes. Thus, the normal physiological functions of TDP-43 are particularly important for cell survival. Normal TDP-43 is located in various subcellular structures including mitochondria, mitochondrial-associated membrane, RNA particles and stress granules to regulate the endoplasmic reticulum–mitochondrial binding, mitochondrial protein translation, and mRNA transport and translation. Importantly, TDP-43 is associated with a variety of neurodegenerative diseases, including amyotrophic lateral sclerosis, frontotemporal dementia and Alzheimer's disease, which are characterized by abnormal phosphorylation, ubiquitination, lysis or nuclear depletion of TDP-43 in neurons and glial cells. Although the pathogenesis of TDP-43 proteinopathy remains unknown, the presence of pathological TDP-43 inside or outside of mitochondria and the functional involvement of TDP-43 in the regulation of mitochondrial morphology, transport, and function suggest that mitochondria are associated with TDP-43-related diseases. Autophagy is a basic physiological process that maintains the homeostasis of cells, including targeted clearance of abnormally aggregated proteins and damaged organelles in the cytoplasm; therefore, it is considered protective against neurodegenerative diseases. However, the combination of abnormal TDP-43 aggregation, mitochondrial dysfunction, and insufficient autophagy can lead to a variety of aging-related pathologies. In this review, we describe the current knowledge on the associations of mitochondria with TDP-43 and the role of autophagy in the clearance of abnormally aggregated TDP-43 and dysfunctional mitochondria. Finally, we discuss a novel approach for neurodegenerative treatment based on the knowledge.
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Affiliation(s)
- Chunhui Huang
- Institute of New Drug Research, Guangdong Province Key Laboratory of Pharmacodynamic, Constituents of Traditional Chinese Medicine and New Drug Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China
| | - Sen Yan
- Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Guangdong-Hongkong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou, 510632, China.
| | - Zaijun Zhang
- Institute of New Drug Research, Guangdong Province Key Laboratory of Pharmacodynamic, Constituents of Traditional Chinese Medicine and New Drug Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China.
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34
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Li X, Wang Y, Chen Y, Zhou P, Wei K, Wang H, Wang J, Fang H, Zhang S. Hierarchically constructed selenium-doped bone-mimetic nanoparticles promote ROS-mediated autophagy and apoptosis for bone tumor inhibition. Biomaterials 2020; 257:120253. [DOI: 10.1016/j.biomaterials.2020.120253] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 07/15/2020] [Accepted: 07/19/2020] [Indexed: 02/08/2023]
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Zhang J, Chou X, Zhuang M, Zhu C, Hu Y, Cheng D, Liu Z. circKMT2D contributes to H 2O 2-attenuated osteosarcoma progression via the miR-210/autophagy pathway. Exp Ther Med 2020; 20:65. [PMID: 32963595 PMCID: PMC7490787 DOI: 10.3892/etm.2020.9193] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Accepted: 06/10/2020] [Indexed: 11/13/2022] Open
Abstract
Circular RNAs (circRNAs) have been demonstrated to be involved in osteosarcoma (OS) development; however, the underlying mechanism of circKMT2D in OS progression remains unclear. The present study aimed to elucidate how circKMT2D could affect hydrogen peroxide (H2O2)-induced OS progression. H2O2 (100 µmol/l) was used to treat MG63 and U2OS cells. The cell viability, invasive ability, apoptosis and circKMT2D expression were detected using Cell Counting Kit-8 assay, Transwell assay, flow cytometry and reverse transcription-quantitative PCR, respectively. Furthermore, MG63 and U2OS cells transfected with circKMT2D short hairpin RNA and negative control were treated with H2O2, and circKMT2D expression and cell phenotype were determined. Dual-luciferase reporter assay was conducted to determine the association between circKMT2D and miR-210 expression level. Rescue experiments were conducted to examine the mechanisms through which circKMT2D and miR-210 could affect H2O2-treated MG63 cells. In addition, the effects of miR-210 on the expression of the autophagy-related proteins Beclin1 and p62 in H2O2-treated MG63 cells were detected by western blotting. An autophagy inhibitor was used to treat the MG63 cells, and whether miR-210 could affect the H2O2-treated MG63 cell phenotype through autophagy was investigated. The results demonstrated that H2O2 treatment promoted cell apoptosis and decreased cell viability, invasive ability and circKMT2D expression in MG63 and U2OS cells. Furthermore, circKMT2D knockdown decreased the cell viability and invasive ability and enhanced the apoptosis of H2O2-treated MG63 and U2OS cells. circKMT2D possessed binding sites for miR-210 and inhibited miR-210 expression. In H2O2-treated MG63 cells, miR-210 silencing partially reversed the circKMT2D knockdown-induced cell viability inhibition and apoptosis promotion. In addition, miR-210 elevated Beclin1 expression and decreased p62 expression in H2O2-treated MG63 cells. The use of the autophagy inhibitor partially reversed the miR-210 overexpression-induced promotion of apoptosis and inhibition of the viability and invasive ability of H2O2-treated MG63 cells. Taken together, these findings indicated that circKMT2D knockdown may contribute to the inhibition of H2O2-attenuated OS progression via miR-210/autophagy pathway.
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Affiliation(s)
- Jun Zhang
- Department of Spine Surgery, The Third Affiliated Hospital of Soochow University, Changzhou 213001, P.R. China
| | - Xubin Chou
- Department of Spine Surgery, The Third Affiliated Hospital of Soochow University, Changzhou 213001, P.R. China
| | - Ming Zhuang
- Department of Spine Surgery, The Third Affiliated Hospital of Soochow University, Changzhou 213001, P.R. China
| | - Chenlei Zhu
- Department of Spine Surgery, The Third Affiliated Hospital of Soochow University, Changzhou 213001, P.R. China
| | - Yong Hu
- Department of Spine Surgery, The Third Affiliated Hospital of Soochow University, Changzhou 213001, P.R. China
| | - Dong Cheng
- Department of Spine Surgery, The Third Affiliated Hospital of Soochow University, Changzhou 213001, P.R. China
| | - Zhiwei Liu
- Department of Spine Surgery, The Third Affiliated Hospital of Soochow University, Changzhou 213001, P.R. China
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Schreckenberger ZJ, Wenceslau CF, Joe B, McCarthy CG. Mitophagy in Hypertension-Associated Premature Vascular Aging. Am J Hypertens 2020; 33:804-812. [PMID: 32533696 PMCID: PMC7481986 DOI: 10.1093/ajh/hpaa058] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 04/01/2020] [Accepted: 04/02/2020] [Indexed: 12/18/2022] Open
Abstract
Hypertension has been described as a condition of premature vascular aging, relative to actual chronological age. In fact, many factors that contribute to the deterioration of vascular function as we age are accelerated and exacerbated in hypertension. Nonetheless, the precise mechanisms that underlie the aged phenotype of arteries from hypertensive patients and animals remain elusive. Classically, the aged phenotype is the buildup of cellular debris and dysfunctional organelles. One means by which this can occur is insufficient degradation and cellular recycling. Mitophagy is the selective catabolism of damaged mitochondria. Mitochondria are organelles that contribute importantly to the determination of cellular age via their production of reactive oxygen species (ROS; Harman's free radical theory of aging). Therefore, the accumulation of dysfunctional and ROS-producing mitochondria could contribute to the acceleration of vascular age in hypertension. This review will address and critically evaluate the current literature on mitophagy in vascular physiology and hypertension.
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Affiliation(s)
- Zachary J Schreckenberger
- Center for Hypertension & Personalized Medicine, Department of Physiology & Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, Ohio, USA
| | - Camilla F Wenceslau
- Center for Hypertension & Personalized Medicine, Department of Physiology & Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, Ohio, USA
| | - Bina Joe
- Center for Hypertension & Personalized Medicine, Department of Physiology & Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, Ohio, USA
| | - Cameron G McCarthy
- Center for Hypertension & Personalized Medicine, Department of Physiology & Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, Ohio, USA
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Subburayan K, Thayyullathil F, Pallichankandy S, Cheratta AR, Galadari S. Superoxide-mediated ferroptosis in human cancer cells induced by sodium selenite. Transl Oncol 2020; 13:100843. [PMID: 32805675 PMCID: PMC7453065 DOI: 10.1016/j.tranon.2020.100843] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 07/22/2020] [Accepted: 07/23/2020] [Indexed: 12/23/2022] Open
Abstract
Ferroptosis is a novel form of programmed cell death characterized by an iron-dependent increase in reactive oxygen species (ROS). However, the role of ROS in the regulation of ferroptosis remains elusive. In this study, for the first time, we demonstrate that sodium selenite (SS), a well-established redox-active selenium compound, is a novel inducer of ferroptosis in a variety of human cancer cells. Potent ferroptosis inhibitors, such as ferrostatin-1 (Fer-1) and deferoxamine (DFO), rescue cells from SS-induced ferroptosis. Furthermore, SS down-regulates ferroptosis regulators; solute carrier family 7 member 11 (SLC7A11), glutathione (GSH), and glutathione peroxidase 4 (GPx4), while it up-regulates iron accumulation and lipid peroxidation (LPO). These SS-induced ferroptotic responses are achieved via ROS, in particular superoxide (O2•−) generation. Antioxidants such as superoxide dismutase (SOD) and Tiron not only scavenged O2•− production, but also markedly rescued SLC7A11 down-regulation, GSH depletion, GPx4 inactivation, iron accumulation, LPO, and ferroptosis. Moreover, iron chelator DFO significantly reduces the O2•− production, indicating a positive feedback regulation between O2•− production and iron accumulation. Taken together, we have identified SS as a novel ferroptosis inducing agent in various human cancer models. Sodium selenite selectively induces ferroptosis in multiple human cancer cells. Sodium selenite inhibits system Xc− function and altered GSH homeostasis. Superoxide is the ROS molecule responsible for the sodium selenite-induced ferroptosis. Sodium selenite induces iron accumulation via superoxide dependent mechanism.
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Affiliation(s)
- Karthikeyan Subburayan
- Cell Death Signaling Laboratory, Division of Science (Biology), Experimental Research Building, New York University Abu Dhabi, P.O. Box 129188, Saadiyat Island Campus, Abu Dhabi, United Arab Emirates.
| | - Faisal Thayyullathil
- Cell Death Signaling Laboratory, Division of Science (Biology), Experimental Research Building, New York University Abu Dhabi, P.O. Box 129188, Saadiyat Island Campus, Abu Dhabi, United Arab Emirates.
| | - Siraj Pallichankandy
- Cell Death Signaling Laboratory, Division of Science (Biology), Experimental Research Building, New York University Abu Dhabi, P.O. Box 129188, Saadiyat Island Campus, Abu Dhabi, United Arab Emirates.
| | - Anees Rahman Cheratta
- Cell Death Signaling Laboratory, Division of Science (Biology), Experimental Research Building, New York University Abu Dhabi, P.O. Box 129188, Saadiyat Island Campus, Abu Dhabi, United Arab Emirates.
| | - Sehamuddin Galadari
- Cell Death Signaling Laboratory, Division of Science (Biology), Experimental Research Building, New York University Abu Dhabi, P.O. Box 129188, Saadiyat Island Campus, Abu Dhabi, United Arab Emirates.
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38
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Zhang B, Liu Z, Cao K, Shan W, Liu J, Wen Q, Wang R. Circ-SPECC1 modulates TGFβ2 and autophagy under oxidative stress by sponging miR-33a to promote hepatocellular carcinoma tumorigenesis. Cancer Med 2020; 9:5999-6008. [PMID: 32627938 PMCID: PMC7433841 DOI: 10.1002/cam4.3219] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/14/2020] [Accepted: 05/18/2020] [Indexed: 12/12/2022] Open
Abstract
Circular RNAs (circRNAs) play vital roles in the pathogenesis and development of multiple cancers, including hepatocellular carcinoma (HCC). Nevertheless, the regulatory mechanisms of circ-SPECC1 in HCC remain poorly understood. In our study, we found that circ-SPECC1 was apparently downregulated in H2 O2 -treated HCC cells. Additionally, knockdown of circ-SPECC1 inhibited cell proliferation and promoted cell apoptosis of HCC cells under H2 O2 treatment. Moreover, circ-SPECC1 inhibited miR-33a expression by direct interaction, and miR-33a inhibitor partially reversed the effect of circ-SPECC1 knockdown on proliferation and apoptosis of H2 O2 -treated HCC cells. Furthermore, TGFβ2 was demonstrated to be a target gene of miR-33a and TGFβ2 overexpression rescued the phenotypes of HCC cells attenuated by miR-33a mimics. Meanwhile, autophagy inhibition by 3-methyladenine (3-MA) abrogated the effect of miR-33a mimics on proliferation and apoptosis of H2 O2 -treated HCC cells. Finally, knockdown of circ-SPECC1 hindered tumor growth in vivo. In conclusion, our study demonstrated that circ-SPECC1 regulated TGFβ2 and autophagy to promote HCC tumorigenesis under oxidative stress via miR-33a. These findings might provide potential treatment strategies for patients with HCC.
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Affiliation(s)
- Bin Zhang
- Institute of Digestive DiseasesXuzhou Medical UniversityXuzhouJiangsuChina
- Department of General SurgeryAffiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsuChina
| | - Zhiyi Liu
- Institute of Digestive DiseasesXuzhou Medical UniversityXuzhouJiangsuChina
- Department of General SurgeryAffiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsuChina
| | - Kuan Cao
- Institute of Digestive DiseasesXuzhou Medical UniversityXuzhouJiangsuChina
- Department of General SurgeryAffiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsuChina
| | - Wengang Shan
- Institute of Digestive DiseasesXuzhou Medical UniversityXuzhouJiangsuChina
- Department of General SurgeryAffiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsuChina
| | - Jin Liu
- Institute of Digestive DiseasesXuzhou Medical UniversityXuzhouJiangsuChina
- Department of General SurgeryAffiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsuChina
| | - Quan Wen
- Institute of Digestive DiseasesXuzhou Medical UniversityXuzhouJiangsuChina
- Department of General SurgeryAffiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsuChina
| | - Renhao Wang
- Institute of Digestive DiseasesXuzhou Medical UniversityXuzhouJiangsuChina
- Department of General SurgeryAffiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsuChina
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39
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Guo Y, Wang Y, Huang B. The acute toxicity effects of hexavalent chromium in antioxidant system and gonad development to male clam Geloina coaxans. THE EUROPEAN ZOOLOGICAL JOURNAL 2020. [DOI: 10.1080/24750263.2020.1775318] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- Y. Guo
- Ocean College, Hainan University, Haikou, Hainan, PR China
- A State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, Hainan, PR China
| | - Y. Wang
- Ocean College, Hainan University, Haikou, Hainan, PR China
- A State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, Hainan, PR China
| | - B. Huang
- Ocean College, Hainan University, Haikou, Hainan, PR China
- A State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, Hainan, PR China
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40
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Wang Y, Liu HH, Cao YT, Zhang LL, Huang F, Yi C. The Role of Mitochondrial Dynamics and Mitophagy in Carcinogenesis, Metastasis and Therapy. Front Cell Dev Biol 2020; 8:413. [PMID: 32587855 PMCID: PMC7297908 DOI: 10.3389/fcell.2020.00413] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 05/04/2020] [Indexed: 12/24/2022] Open
Abstract
Mitochondria are key cellular organelles and play vital roles in energy metabolism, apoptosis regulation and cellular homeostasis. Mitochondrial dynamics refers to the varying balance between mitochondrial fission and mitochondrial fusion that plays an important part in maintaining mitochondrial homeostasis and quality. Mitochondrial malfunction is involved in aging, metabolic disease, neurodegenerative disorders, and cancers. Mitophagy, a selective autophagy of mitochondria, can efficiently degrade, remove and recycle the malfunctioning or damaged mitochondria, and is crucial for quality control. In past decades, numerous studies have identified a series of factors that regulate mitophagy and are also involved in carcinogenesis, cancer cell migration and death. Therefore, it has become critically important to analyze signal pathways that regulate mitophagy to identify potential therapeutic targets. Here, we review recent progresses in mitochondrial dynamics, the mechanisms of mitophagy regulation, and the implications for understanding carcinogenesis, metastasis, treatment, and drug resistance.
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Affiliation(s)
- Yigang Wang
- Xinyuan Institute of Medicine and Biotechnology, School of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, China
| | - Hui-Hui Liu
- Xinyuan Institute of Medicine and Biotechnology, School of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, China
| | - Yu-Ting Cao
- Xinyuan Institute of Medicine and Biotechnology, School of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, China
| | - Lei-Lei Zhang
- Xinyuan Institute of Medicine and Biotechnology, School of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, China
| | - Fang Huang
- Department of Pathology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Cong Yi
- Department of Biochemistry, Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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41
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Pourhanifeh MH, Mahjoubin-Tehran M, Karimzadeh MR, Mirzaei HR, Razavi ZS, Sahebkar A, Hosseini N, Mirzaei H, Hamblin MR. Autophagy in cancers including brain tumors: role of MicroRNAs. Cell Commun Signal 2020; 18:88. [PMID: 32517694 PMCID: PMC7285723 DOI: 10.1186/s12964-020-00587-w] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Accepted: 04/27/2020] [Indexed: 12/14/2022] Open
Abstract
Autophagy has a crucial role in many cancers, including brain tumors. Several types of endogenous molecules (e.g. microRNAs, AKT, PTEN, p53, EGFR, and NF1) can modulate the process of autophagy. Recently miRNAs (small non-coding RNAs) have been found to play a vital role in the regulation of different cellular and molecular processes, such as autophagy. Deregulation of these molecules is associated with the development and progression of different pathological conditions, including brain tumors. It was found that miRNAs are epigenetic regulators, which influence the level of proteins coded by the targeted mRNAs with any modification of the genetic sequences. It has been revealed that various miRNAs (e.g., miR-7-1-3p, miR-340, miR-17, miR-30a, miR-224-3p, and miR-93), as epigenetic regulators, can modulate autophagy pathways within brain tumors. A deeper understanding of the underlying molecular targets of miRNAs, and their function in autophagy pathways could contribute to the development of new treatment methods for patients with brain tumors. In this review, we summarize the various miRNAs, which are involved in regulating autophagy in brain tumors. Moreover, we highlight the role of miRNAs in autophagy-related pathways in different cancers. Video abstract
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Affiliation(s)
| | - Maryam Mahjoubin-Tehran
- Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Medical Biotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Reza Karimzadeh
- Department of Medical Genetics, School of Medicine, Bam University of Medical Sciences, Bam, Iran
| | - Hamid Reza Mirzaei
- Department of Medical Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Sadat Razavi
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran.,School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - Amirhossein Sahebkar
- Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Nayyerehsadat Hosseini
- Medical Genetics Research Center, Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, 40 Blossom Street, Boston, MA, 02114, USA.
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42
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Liu L, Liao X, Wu H, Li Y, Zhu Y, Chen Q. Mitophagy and Its Contribution to Metabolic and Aging-Associated Disorders. Antioxid Redox Signal 2020; 32:906-927. [PMID: 31969001 DOI: 10.1089/ars.2019.8013] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Significance: Mitochondria are the cellular powerhouses for ATP synthesis through oxidative phosphorylation, and the centers for fatty acid β-oxidation, metabolite synthesis, reactive oxygen species production, innate immunity, and apoptosis. To fulfill these critical functions, mitochondrial quality and homeostasis must be well maintained. Abnormal mitochondrial quality contributes to aging and age-related disorders, such as metabolic syndrome, cancers, and neurodegenerative diseases. Recent Advances: Mitophagy is a cellular process that selectively removes damaged or superfluous mitochondria by autolysosomal degradation and is regarded as one of the major mechanisms responsible for mitochondrial quality control. Critical Issues: To date, distinct mitophagy pathways have been discovered, including receptor-mediated mitophagy and ubiquitin-dependent mitophagy. Emerging knowledge of these pathways shows that they play important roles in sensing mitochondrial stress and signaling for metabolic adaptations. Future Directions: Here, we provide a review on the molecular mechanisms for mitophagy and its interplay with cellular metabolism, with a particular focus on its role in metabolic and age-related disorders.
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Affiliation(s)
- Lei Liu
- The State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Xudong Liao
- The State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Hao Wu
- The State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Yanjun Li
- The State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Yushan Zhu
- The State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Quan Chen
- The State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
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43
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Binte Hossain KF, Rahman MM, Sikder MT, Hosokawa T, Saito T, Kurasaki M. Regulatory effects of dihydrolipoic acid against inorganic mercury-mediated cytotoxicity and intrinsic apoptosis in PC12 cells. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 192:110238. [PMID: 32036095 DOI: 10.1016/j.ecoenv.2020.110238] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 01/15/2020] [Accepted: 01/21/2020] [Indexed: 06/10/2023]
Abstract
Mercury (Hg) is an extremely dangerous environmental contaminant, responsible for human diseases including neurological disorders. However, the mechanisms of inorganic Hg (iHg)-induced cell death and toxicity are little known. Dihydrolipoic acid (DHLA) is the reduced form of a naturally occurring compound lipoic acid, which act as a potent antioxidant through multiple mechanisms. So we hypothesized that DHLA has an inhibitory role on iHg-cytotoxicity. The purposes of this research were to investigate mechanism/s of cytotoxicity of iHg, as well as, the cyto-protection of DHLA against iHg induced toxicity using PC12 cells. Treatment of PC12 cells with HgCl2 (Hg2+) (0-2.5 μM) for 48 h resulted in significant toxic effects, such as, cell viability loss, high level of lactate dehydrogenase (LDH) release, DNA damage, cellular glutathione (GSH) level decrease and increased Hg accumulation. In addition, protein level expressions of akt, p-akt, mTOR, GR, NFkB, ERK1, Nrf2 and HO-1 in cells were downregulated; and cleaved caspase 3 and cytochrome c release were upregulated after Hg2+ (2.5 μM) exposure and thus inducing apoptosis. Hg2+induced apoptosis was also confirmed by flow cytometry. However, pretreatment with DHLA (50 μM) for 3 h before Hg2+ (2.5 μM) exposure showed inhibition against iHg2+-induced cytotoxicity by reversing cell viability loss, LDH release, DNA damage, GSH decrease and inhibiting Hg accumulation. Moreover, DHLA pretreatment reversed the protein level expressions of akt, p-akt, mTOR, GR, NFkB, ERK1, Nrf2, HO-1, cleaved caspase 3 and cytochrome c. In conclusion, results showed that DHLA could attenuate Hg2+-induced cytotoxicity via limiting Hg accumulation, boosting up of antioxidant defense, and inhibition of apoptosis in cells.
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Affiliation(s)
| | - Md Mostafizur Rahman
- Faculty of Environmental Earth Science, Hokkaido University, Sapporo, 060-0810, Japan; Department of Environmental Science, Jahangirnagar University, Dhaka, 1342, Bangladesh
| | - Md Tajuddin Sikder
- Faculty of Environmental Earth Science, Hokkaido University, Sapporo, 060-0810, Japan; Department of Public Health and Informatics, Jahangirnagar University, Dhaka, 1342, Bangladesh
| | - Toshiyuki Hosokawa
- Institute for the Advancement of Higher Education, Hokkaido University, Sapporo, 060-0817, Japan
| | - Takeshi Saito
- Faculty of Health Science, Hokkaido University, Sapporo, 060-0812, Japan
| | - Masaaki Kurasaki
- Graduate School of Environmental Science, Hokkaido University, Sapporo, 060-0810, Japan; Faculty of Environmental Earth Science, Hokkaido University, Sapporo, 060-0810, Japan.
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44
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Dong Y, Xiao H, Xing L, Wu C, Zhou J, Zhou Z, Liu Y, Zhuo S, Li P. Two-photon fluorescence visualization of lysosomal pH changes during mitophagy and cell apoptosis. Talanta 2020; 209:120549. [DOI: 10.1016/j.talanta.2019.120549] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 10/28/2019] [Accepted: 11/09/2019] [Indexed: 01/24/2023]
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45
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Qi W, Li Z, Yang C, Jiangshan Dai J, Zhang Q, Wang D, Wu C, Xia L, Xu S. Inhibitory mechanism of muscone in liver cancer involves the induction of apoptosis and autophagy. Oncol Rep 2020; 43:839-850. [PMID: 32020222 PMCID: PMC7041171 DOI: 10.3892/or.2020.7484] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 01/10/2020] [Indexed: 12/22/2022] Open
Abstract
Traditionally, musk has been used as an analgesic to treat pain associated with cancer. Hepatocellular carcinoma (HCC) is an aggressive tumor; however, patients with liver cancer that received musk were reported to live longer and have a higher quality of life. Thus, the present study aimed to investigate whether muscone, a macrocyclic compound of musk, demonstrated potential as an anti-liver cancer drug for the non-surgical treatment of advanced liver cancer. Briefly, liver cancer cells were treated with muscone and the rates of cellular apoptosis and autophagy were investigated using staining techniques and western blotting. The underlying molecular mechanisms of muscone were evaluated using high-throughput sequencing and the in vitro effects of muscone were subsequently validated in vivo using a nude mouse model. Muscone increased the rates of apoptosis and autophagy in liver cancer cells; the increase in cellular apoptosis was observed to occur through endoplasmic reticulum stress responses, whereas muscone-induced autophagy was closely associated with the AMP kinase/mTOR complex 1 signaling pathway. These findings were verified in vivo. Notably, sestrin-2 expression levels were also significantly decreased in liver cancer tissues compared with paracancerous tissues. In conclusion, the present study suggests that muscone demonstrates potential as an anticancer drug, and the findings of the present study provide the basis for the development of effective anticancer drugs derived from natural compounds.
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Affiliation(s)
- Wenchuan Qi
- Key Laboratory of Bio‑Resource and Eco‑Environment of the Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, P.R. China
| | - Zhenhua Li
- Department of Orthopedics, Changchun University of Traditional Chinese Medicine, Changchun, Jilin 130021, P.R. China
| | - Chunlan Yang
- Key Laboratory of Bio‑Resource and Eco‑Environment of the Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, P.R. China
| | - Jiangshan Jiangshan Dai
- Key Laboratory of Bio‑Resource and Eco‑Environment of the Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, P.R. China
| | - Qiao Zhang
- Department of Orthopedics, China‑Japan Friendship Hospital Affiliated Jilin University, Changchun, Jilin 130021, P.R. China
| | - Di Wang
- Key Laboratory of Bio‑Resource and Eco‑Environment of the Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, P.R. China
| | - Chuanfang Wu
- Key Laboratory of Bio‑Resource and Eco‑Environment of the Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, P.R. China
| | - Longjiang Xia
- College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, P.R. China
| | - Si Xu
- Key Laboratory of Bio‑Resource and Eco‑Environment of the Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, P.R. China
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46
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Linder B, Kögel D. Autophagy in Cancer Cell Death. BIOLOGY 2019; 8:biology8040082. [PMID: 31671879 PMCID: PMC6956186 DOI: 10.3390/biology8040082] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 10/18/2019] [Accepted: 10/28/2019] [Indexed: 12/13/2022]
Abstract
Autophagy has important functions in maintaining energy metabolism under conditions of starvation and to alleviate stress by removal of damaged and potentially harmful cellular components. Therefore, autophagy represents a pro-survival stress response in the majority of cases. However, the role of autophagy in cell survival and cell death decisions is highly dependent on its extent, duration, and on the respective cellular context. An alternative pro-death function of autophagy has been consistently observed in different settings, in particular, in developmental cell death of lower organisms and in drug-induced cancer cell death. This cell death is referred to as autophagic cell death (ACD) or autophagy-dependent cell death (ADCD), a type of cellular demise that may act as a backup cell death program in apoptosis-deficient tumors. This pro-death function of autophagy may be exerted either via non-selective bulk autophagy or excessive (lethal) removal of mitochondria via selective mitophagy, opening new avenues for the therapeutic exploitation of autophagy/mitophagy in cancer treatment.
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Affiliation(s)
- Benedikt Linder
- Experimental Neurosurgery, Department of Neurosurgery, Neuroscience Center, Goethe University Hospital, 60528 Frankfurt am Main, Germany.
| | - Donat Kögel
- Experimental Neurosurgery, Department of Neurosurgery, Neuroscience Center, Goethe University Hospital, 60528 Frankfurt am Main, Germany.
- German Cancer Consortium (DKTK), Partner Site Frankfurt, 60590 Frankfurt am Main, Germany.
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Oh JM, Kim E, Chun S. Ginsenoside Compound K Induces Ros-Mediated Apoptosis and Autophagic Inhibition in Human Neuroblastoma Cells In Vitro and In Vivo. Int J Mol Sci 2019; 20:ijms20174279. [PMID: 31480534 PMCID: PMC6747534 DOI: 10.3390/ijms20174279] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/30/2019] [Accepted: 08/30/2019] [Indexed: 02/05/2023] Open
Abstract
Autophagy can result in cellular adaptation, as well as cell survival or cell death. Modulation of autophagy is increasingly regarded as a promising cancer therapeutic approach. Ginsenoside compound K (CK), an active metabolite of ginsenosides isolated from Panax ginseng C.A. Meyer, has been identified to inhibit growth of cancer cell lines. However, the molecular mechanisms of CK effects on autophagy and neuroblastoma cell death have not yet been investigated. In the present study, CK inhibited neuroblastoma cell proliferation in vitro and in vivo. Treatment by CK also induced the accumulation of sub-G1 population, and caspase-dependent apoptosis in neuroblastoma cells. In addition, CK promotes autophagosome accumulation by inducing early-stage autophagy but inhibits autophagic flux by blocking of autophagosome and lysosome fusion, the step of late-stage autophagy. This effect of CK appears to be mediated through the induction of intracellular reactive oxygen species (ROS) and mitochondria membrane potential loss. Moreover, chloroquine, an autophagy flux inhibitor, further promoted CK-induced apoptosis, mitochondrial ROS induction, and mitochondria damage. Interestingly, those promoted phenomena were rescued by co-treatment with a ROS scavenging agent and an autophagy inducer. Taken together, our findings suggest that ginsenoside CK induced ROS-mediated apoptosis and autophagic flux inhibition, and the combination of CK with chloroquine, a pharmacological inhibitor of autophagy, may be a novel therapeutic potential for the treatment of neuroblastoma.
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Affiliation(s)
- Jung-Mi Oh
- Department of Physiology, Chonbuk National University Medical School, Jeonju 54907, Korea
| | - Eunhee Kim
- School of Life Sciences, Ulsan National Institute of Science and Technology, Ulsan 44919, Korea
| | - Sungkun Chun
- Department of Physiology, Chonbuk National University Medical School, Jeonju 54907, Korea.
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48
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Choi EM, Suh KS, Jung WW, Yun S, Park SY, Chin SO, Rhee SY, Chon S. Catalpol protects against 2,3,7,8-tetrachlorodibenzo-p-dioxin-induced cytotoxicity in osteoblastic MC3T3-E1 cells. J Appl Toxicol 2019; 39:1710-1719. [PMID: 31429101 DOI: 10.1002/jat.3896] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 07/12/2019] [Accepted: 07/23/2019] [Indexed: 01/23/2023]
Abstract
2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) is a well-known environmental contaminant that produces a wide variety of adverse effects in humans. Catalpol, a major bioactive compound enriched in the dried root of Rehmannia glutinosa, is a major iridoid glycoside that alleviates bone loss. However, the detailed mechanisms underlying the effects of catalpol remain unclear. The present study evaluated the effects of catalpol on TCDD-induced cytotoxicity in osteoblastic MC3T3-E1 cells. Catalpol inhibited TCDD-induced reduction in cell viability and increases in apoptosis and autophagic activity in osteoblastic MC3T3-E1 cells. Additionally, pretreatment with catalpol significantly decreased the nitric oxide and nitrite levels compared with a control in TCDD-treated cells and significantly inhibited TCDD-induced increases in the levels of cytochrome P450 1A1 and extracellular signal-regulated kinase. Pretreatment with catalpol also effectively restored the expression of superoxide dismutase and extracellular signal-regulated kinase 1 and significantly enhanced the expression of glutathione peroxidase 4 and osteoblast differentiation markers, including alkaline phosphatase and osterix. Taken together, these findings demonstrate that catalpol has preventive effects against TCDD-induced damage in MC3T3-E1 osteoblastic cells.
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Affiliation(s)
- Eun Mi Choi
- Department of Endocrinology & Metabolism, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Kwang Sik Suh
- Department of Endocrinology & Metabolism, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Woon-Won Jung
- Department of Biomedical Laboratory Science, College of Health Sciences, Cheongju University, Cheongju-si, Chungcheongbuk-do, Republic of Korea
| | - Soojin Yun
- Department of Medicine, Graduate School, Kyung Hee University, Seoule, Republic of Korea.,Department of Endocrinology & Metabolism, Kyung Hee University Hospital, Seoul, Republic of Korea
| | - So Young Park
- Department of Endocrinology & Metabolism, College of Medicine, Kyung Hee University, Seoul, Republic of Korea.,Department of Endocrinology & Metabolism, Kyung Hee University Hospital, Seoul, Republic of Korea
| | - Sang Ouk Chin
- Department of Endocrinology & Metabolism, College of Medicine, Kyung Hee University, Seoul, Republic of Korea.,Department of Endocrinology & Metabolism, Kyung Hee University Hospital, Seoul, Republic of Korea
| | - Sang Youl Rhee
- Department of Endocrinology & Metabolism, College of Medicine, Kyung Hee University, Seoul, Republic of Korea.,Department of Endocrinology & Metabolism, Kyung Hee University Hospital, Seoul, Republic of Korea
| | - Suk Chon
- Department of Endocrinology & Metabolism, College of Medicine, Kyung Hee University, Seoul, Republic of Korea.,Department of Endocrinology & Metabolism, Kyung Hee University Hospital, Seoul, Republic of Korea
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Xia T, Zhang J, Zhou C, Li Y, Duan W, Zhang B, Wang M, Fang J. 20(S)-Ginsenoside Rh2 displays efficacy against T-cell acute lymphoblastic leukemia through the PI3K/Akt/mTOR signal pathway. J Ginseng Res 2019; 44:725-737. [PMID: 32913402 PMCID: PMC7471214 DOI: 10.1016/j.jgr.2019.07.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 06/20/2019] [Accepted: 07/24/2019] [Indexed: 02/07/2023] Open
Abstract
Background T-cell acute lymphoblastic leukemia (T-ALL) is a kind of aggressive hematological cancer, and the PI3K/Akt/mTOR signaling pathway is activated in most patients with T-ALL and responsible for poor prognosis. 20(S)-Ginsenoside Rh2 (20(S)-GRh2) is a major active compound extracted from ginseng, which exhibits anti-cancer effects. However, the underlying anticancer mechanisms of 20(S)-GRh2 targeting the PI3K/Akt/mTOR pathway in T-ALL have not been explored. Methods Cell growth and cell cycle were determined to investigate the effect of 20(S)-GRh2 on ALL cells. PI3K/Akt/mTOR pathway–related proteins were detected in 20(S)-GRh2–treated Jurkat cells by immunoblotting. Antitumor effect of 20(S)-GRh2 against T-ALL was investigated in xenograft mice. The mechanisms of 20(S)-GRh2 against T-ALL were examined by cell proliferation, apoptosis, and autophagy. Results In the present study, the results showed that 20(S)-GRh2 decreased cell growth and arrested cell cycle at the G1 phase in ALL cells. 20(S)-GRh2 induced apoptosis through enhancing reactive oxygen species generation and upregulating apoptosis-related proteins. 20(S)-GRh2 significantly elevated the levels of pEGFP-LC3 and autophagy-related proteins in Jurkat cells. Furthermore, the PI3K/Akt/mTOR signaling pathway was effectively blocked by 20(S)-GRh2. 20(S)-GRh2 suppressed cell proliferation and promoted apoptosis and autophagy by suppressing the PI3K/Akt/mTOR pathway in Jurkat cells. Finally, 20(S)-GRh2 alleviated symptoms of leukemia and reduced the number of white blood cells and CD3 staining in the spleen of xenograft mice, indicating antitumor effects against T-ALL invivo. Conclusion These findings indicate that 20(S)-GRh2 exhibits beneficial effects against T-ALL through the PI3K/Akt/mTOR pathway and could be a natural product of novel target for T-ALL therapy.
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Affiliation(s)
- Ting Xia
- State Key Laboratory of Food Nutrition and Safety, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, China
| | - Jin Zhang
- State Key Laboratory of Food Nutrition and Safety, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, China
| | - Chuanxin Zhou
- Department of Pediatrics, The Fifth Hospital of Sun Yat Sen University, Sun Yat sen University, Zhuhai, Guangdong, China
| | - Yu Li
- State Key Laboratory of Food Nutrition and Safety, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, China
| | - Wenhui Duan
- State Key Laboratory of Food Nutrition and Safety, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, China
| | - Bo Zhang
- State Key Laboratory of Food Nutrition and Safety, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, China
| | - Min Wang
- State Key Laboratory of Food Nutrition and Safety, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, China
| | - Jianpei Fang
- Department of Pediatrics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guang Dong, China.,Key Laboratory of Malignant Tumor Gene Regulation and Target Therapy of Guangdong Higher Education Institutes, Sun Yat-sen University, Guangzhou, Guang Dong, China
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50
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Panigrahi DP, Praharaj PP, Bhol CS, Mahapatra KK, Patra S, Behera BP, Mishra SR, Bhutia SK. The emerging, multifaceted role of mitophagy in cancer and cancer therapeutics. Semin Cancer Biol 2019; 66:45-58. [PMID: 31351198 DOI: 10.1016/j.semcancer.2019.07.015] [Citation(s) in RCA: 154] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 06/26/2019] [Accepted: 07/22/2019] [Indexed: 12/18/2022]
Abstract
Mitophagy is an evolutionarily conserved cellular process which selectively eliminates dysfunctional mitochondria by targeting them to the autophagosome for degradation. Dysregulated mitophagy results in the accumulation of damaged mitochondria, which plays an important role in carcinogenesis and tumor progression. The role of mitophagy receptors and adaptors including PINK1, Parkin, BNIP3, BNIP3L/NIX, and p62/SQSTM1, and the signaling pathways that govern mitophagy are impaired in cancer. Furthermore, the contribution of mitophagy in regulating the metabolic switch may establish a balance between aerobic glycolysis and oxidative phosphorylation for cancer cell survival. Moreover, ROS-driven mitophagy achieves different goals depending on the stage of tumorigenesis. Mitophagy promotes plasticity in the cancer stem cell through the metabolic reconfiguration for better adaption to the tumor microenvironment. In addition, the present review sheds some light on the role of mitophagy in stemness and differentiation during the transition of cell's fate, which could have a crucial role in cancer progression and metastasis. In conclusion, this review deals with the detailed molecular mechanisms underlying mitophagy, along with highlighting the dual role of mitophagy in different aspects of cancer, suggesting it as a possible target in the mitophagy-modulated cancer therapy.
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Affiliation(s)
- Debasna P Panigrahi
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology Rourkela, Odisha, India
| | - Prakash P Praharaj
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology Rourkela, Odisha, India
| | - Chandra S Bhol
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology Rourkela, Odisha, India
| | - Kewal K Mahapatra
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology Rourkela, Odisha, India
| | - Srimanta Patra
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology Rourkela, Odisha, India
| | - Bishnu P Behera
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology Rourkela, Odisha, India
| | - Soumya R Mishra
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology Rourkela, Odisha, India
| | - Sujit K Bhutia
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology Rourkela, Odisha, India.
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