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Gardner JJ, Cushen SC, Oliveira da Silva RDN, Bradshaw JL, Hula N, Gorham IK, Tucker SM, Zhou Z, Cunningham RL, Phillips NR, Goulopoulou S. Oxidative stress induces release of mitochondrial DNA into the extracellular space in human placental villous trophoblast BeWo cells. Am J Physiol Cell Physiol 2024; 326:C1776-C1788. [PMID: 38738304 DOI: 10.1152/ajpcell.00091.2024] [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: 02/06/2024] [Revised: 04/26/2024] [Accepted: 04/26/2024] [Indexed: 05/14/2024]
Abstract
Circulating cell-free mitochondrial DNA (ccf-mtDNA) is an indicator of cell death, inflammation, and oxidative stress. ccf-mtDNA in pregnancies with placental dysfunction differs from that in healthy pregnancies, and the direction of this difference depends on gestational age and method of mtDNA quantification. Reactive oxygen species (ROS) trigger release of mtDNA, yet it is unknown whether trophoblast cells release mtDNA in response to oxidative stress, a common feature of pregnancies with placental pathology. We hypothesized that oxidative stress would induce cell death and release of mtDNA from trophoblast cells. BeWo cells were treated with antimycin A (10-320 µM) or rotenone (0.2-50 µM) to induce oxidative stress. A multiplex real-time quantitative PCR (qPCR) assay was used to quantify mtDNA and nuclear DNA in membrane-bound, non-membrane-bound, and vesicle-bound forms in cell culture supernatants and cell lysates. Treatment with antimycin A increased ROS (P < 0.0001), induced cell necrosis (P = 0.0004) but not apoptosis (P = 0.6471), and was positively associated with release of membrane-bound and non-membrane-bound mtDNA (P < 0.0001). Antimycin A increased mtDNA content in exosome-like extracellular vesicles (vesicle-bound form; P = 0.0019) and reduced autophagy marker expression (LC3A/B, P = 0.0002; p62, P < 0.001). Rotenone treatment did not influence mtDNA release or cell death (P > 0.05). Oxidative stress induces release of mtDNA into the extracellular space and causes nonapoptotic cell death and a reduction in autophagy markers in BeWo cells, an established in vitro model of human trophoblast cells. Intersection between autophagy and necrosis may mediate the release of mtDNA from the placenta in pregnancies exposed to oxidative stress.NEW & NOTEWORTHY This is the first study to test whether trophoblast cells release mitochondrial (mt)DNA in response to oxidative stress and to identify mechanisms of release and biological forms of mtDNA from this cellular type. This research identifies potential cellular mechanisms that can be used in future investigations to establish the source and biomarker potential of circulating mtDNA in preclinical experimental models and humans.
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Affiliation(s)
- Jennifer J Gardner
- Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, Texas, United States
| | - Spencer C Cushen
- Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, Texas, United States
- Texas College of Osteopathic Medicine, University of North Texas Health Science Center, Fort Worth, Texas, United States
| | - Reneé de Nazaré Oliveira da Silva
- Lawrence D. Longo, MD Center for Perinatal Biology, Departments of Basic Sciences, Gynecology, and Obstetrics, Loma Linda University School of Medicine, Loma Linda, California, United States
| | - Jessica L Bradshaw
- Department of Pharmaceutical Sciences, System College of Pharmacy, University of North Texas Health Science Center, Fort Worth, Texas, United States
| | - Nataliia Hula
- Lawrence D. Longo, MD Center for Perinatal Biology, Departments of Basic Sciences, Gynecology, and Obstetrics, Loma Linda University School of Medicine, Loma Linda, California, United States
| | - Isabelle K Gorham
- Department of Microbiology, Immunology, and Genetics, University of North Texas Health Science Center, Fort Worth, Texas, United States
| | - Selina M Tucker
- Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, Texas, United States
| | - Zhengyang Zhou
- Department of Population & Community Health, University of North Texas Health Science Center, Fort Worth, Texas, United States
| | - Rebecca L Cunningham
- Department of Pharmaceutical Sciences, System College of Pharmacy, University of North Texas Health Science Center, Fort Worth, Texas, United States
| | - Nicole R Phillips
- Department of Microbiology, Immunology, and Genetics, University of North Texas Health Science Center, Fort Worth, Texas, United States
| | - Styliani Goulopoulou
- Lawrence D. Longo, MD Center for Perinatal Biology, Departments of Basic Sciences, Gynecology, and Obstetrics, Loma Linda University School of Medicine, Loma Linda, California, United States
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Takahashi K, Tanaka T, Ishihara A, Ohta T. Strobilurin X acts as an anticancer drug by inhibiting protein synthesis and suppressing mitochondrial respiratory chain activity. Discov Oncol 2024; 15:177. [PMID: 38769217 PMCID: PMC11106052 DOI: 10.1007/s12672-024-01041-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 05/17/2024] [Indexed: 05/22/2024] Open
Abstract
PURPOSE Strobilurins act as antifungal agents by inhibiting the mitochondrial respiratory chain. The cytotoxic activity of strobilurins, focusing on its anticancer activities, has been reported. However, the mechanisms involved in these activities remain unclear. METHODS The cytotoxic effects of strobilurin X isolated from the mycelium of Mucidula. venosolamellata were examined in human cancer cell lines (A549 and HeLa) and normal fibroblasts (WI-38). RESULTS Strobilurin X significantly decreased the viability of A549 and HeLa cells compared to that in the WI-38 cells after 48 h of exposure. The EC50 values for cytotoxicity in the A549, HeLa, and WI-38 cells were 3.4, 5.4, and 16.8 μg/mL, respectively. Strobilurin X inhibited the mitochondrial respiratory chain and enhanced the release of lactate in the A549 cells. The IC50 value of strobilurin X against the mitochondrial respiratory chain complex III activity was 139.8 ng/mL. The cytotoxicity induced by strobilurin X was not completely rescued after adding uridine, methyl pyruvate, or N-acetyl cysteine. Furthermore, pharmacological approaches demonstrated that strobilurin X failed to modulate the mitogen-activated protein kinase family and phosphoinositide 3-kinase-Akt pathways; alternatively, it suppressed protein synthesis independent of uridine. CONCLUSION Strobilurin X induced cytotoxicity by blocking the mitochondrial respiratory chain and suppressing protein synthesis. These findings may aid in the development of novel anticancer drugs using strobilurins.
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Affiliation(s)
- Kenji Takahashi
- Department of Veterinary Pharmacology, Faculty of Agriculture, Tottori University, Tottori, 680-8553, Japan
- Division of Functional Fungal Physiology and Pharmacology, Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University, Tottori, 680-8553, Japan
| | - Tomoya Tanaka
- Graduate School of Sustainability Sciences, Tottori University, Tottori, 680-8553, Japan
| | - Atsushi Ishihara
- Division of Applied Fungal Chemistry, Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University, Tottori, 680-8553, Japan
| | - Toshio Ohta
- Department of Veterinary Pharmacology, Faculty of Agriculture, Tottori University, Tottori, 680-8553, Japan.
- Division of Functional Fungal Physiology and Pharmacology, Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University, Tottori, 680-8553, Japan.
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Jia L, Yang Y, Sun F, Tao H, Lu C, Yang JJ. Mitochondrial quality control in liver fibrosis: Epigenetic hallmarks and therapeutic strategies. Cell Signal 2024; 115:111035. [PMID: 38182067 DOI: 10.1016/j.cellsig.2024.111035] [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: 12/06/2023] [Revised: 12/29/2023] [Accepted: 01/01/2024] [Indexed: 01/07/2024]
Abstract
BACKGROUND AND AIM Mitochondrial quality control (MQC) plays a significant role in the progression of liver fibrosis, with key processes such as mitochondrial fission, fusion, mitophagy and biogenesis maintaining mitochondrial homeostasis. To understand the molecular mechanisms underlying epigenetic regulation of mitochondrial quality control in liver fibrosis, with the aim of uncovering novel therapeutic targets for treating, mitigating, and potentially reversing liver fibrosis, in light of the most recent advances in this field. METHODS We searched PubMed, Web of Science, and Scopus for published manuscripts using terms "mitochondrial quality control" "mitochondrial fission" "mitochondrial fusion" "mitochondrial biogenesis" "mitophagy" "liver fibrosis" "epigenetic regulation" "DNA methylation" "RNA methylation" "histone modification" and "non-coding RNA". Manuscripts were collated, studied and carried forward for discussion where appropriate. RESULTS Mitochondrial fission, fusion, biogenesis, and mitophagy regulate the homeostasis of mitochondria, and the imbalance of mitochondrial homeostasis can induce liver fibrosis. Epigenetic regulation, including DNA methylation, RNA methylation, histone modifications, and non-coding RNAs, plays a significant role in regulating the processes of mitochondrial homeostasis. CONCLUSION Mitochondrial quality control and epigenetic mechanisms are intricately linked to the pathogenesis of liver fibrosis. Understanding these molecular interactions provides insight into potential therapeutic strategies. Further research is necessary to translate these findings into clinical applications, with a focus on developing epigenetic drugs to ameliorate liver fibrosis by modulating MQC and epigenetic pathways.
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Affiliation(s)
- Lin Jia
- Department of Clinical Pharmacology, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China; School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Yang Yang
- Department of General Surgery, Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou 215153, China
| | - Feng Sun
- Department of Clinical Pharmacology, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China; School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Hui Tao
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, PR China.
| | - Chao Lu
- School of Pharmacy, Anhui Medical University, Hefei 230032, China; First Affiliated Hospital, Anhui University of Science & Technology, Huainan 232001, China.
| | - Jing-Jing Yang
- Department of Clinical Pharmacology, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China.
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Zhu J, Tao Q, Du G, Huang L, Li M, Wang M, Wang Q. Mitochondrial dynamics disruption: Unraveling Dinotefuran's impact on cardiotoxicity. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 343:123238. [PMID: 38159629 DOI: 10.1016/j.envpol.2023.123238] [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: 10/13/2023] [Revised: 12/10/2023] [Accepted: 12/25/2023] [Indexed: 01/03/2024]
Abstract
Exposure to pesticides has been associated with several cardiovascular complications in animal models. Neonicotinoids are now the most widely used insecticide globally, while the impact of neonicotinoids on cardiovascular function and the role of mitochondrial dynamics in neonicotinoids-induced cardiotoxicity is unclear. In the present study, Xenopus laevis tadpoles were exposed to environmental related concentrations (0, 5, and 50 μg/L) of typical neonicotinoid dinotefuran, with two enantiomers, for 21 days. We evaluated the changes in heart rate and cardiomyocyte apoptosis in exposed tadpoles. Then, we performed the transcriptome, metabolomics, transmission electron microscopy (TEM), and protein immunoblot to investigate the potential adverse impact of two enantiomers of dinotefuran on cardiotoxicity associated with mitochondrial dynamics. We observed changes in heart rate and increased cardiomyocyte apoptosis in exposed tadpoles, indicating that dinotefuran had a cardiotoxic effect. We further found that the cardiac contractile function pathway was significantly enriched, while the glucose metabolism-related pathways were also disturbed significantly. TEM observation revealed that the mitochondrial morphology of cardiomyocytes in exposed tadpoles was swollen, and mitophagy was increased. Mitochondria fusion was excessively manifested in the enhanced mitochondrial fusion protein. The mitochondrial respiratory chain was also disturbed, which led to an increase in ROS production and a decrease in ATP content. Therefore, our results suggested that dinotefuran exposure can induce cardiac disease associated mitochondrial disorders by interfering with the functionality and dynamics of mitochondria. In addition, both two enantiomers of dinotefuran have certain toxicity to tadpole cardiomyocytes, while R-dinotefuran exhibited higher toxicity than S-enantiomer, which may be attributed to disparities in the activation capacities of the respiratory chain.
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Affiliation(s)
- Jiaping Zhu
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou, 310058, China
| | - Qiao Tao
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou, 310058, China
| | - Gaoyi Du
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou, 310058, China
| | - Lei Huang
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou, 310058, China
| | - Meng Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Mengcen Wang
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou, 310058, China
| | - Qiangwei Wang
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou, 310058, China.
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5
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Gardner JJ, Cushen SC, Oliveira da Silva RDN, Bradshaw JL, Hula N, Gorham IK, Tucker SM, Zhou Z, Cunningham RL, Phillips NR, Goulopoulou S. Oxidative stress induces release of mitochondrial DNA into the extracellular space in human placental villous trophoblast BeWo cells. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.02.578433. [PMID: 38352590 PMCID: PMC10862877 DOI: 10.1101/2024.02.02.578433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2024]
Abstract
Circulating cell-free mitochondrial DNA (ccf-mtDNA) is an indicator of cell death, inflammation, and oxidative stress. ccf-mtDNA differs in pregnancies with placental dysfunction from healthy pregnancies and the direction of this difference depends on gestational age and method of mtDNA quantification. Reactive oxygen species (ROS) trigger release of mtDNA from non-placental cells; yet it is unknown whether trophoblast cells release mtDNA in response to oxidative stress, a common feature of pregnancies with placental pathology. We hypothesized that oxidative stress would induce cell death and release of mtDNA from trophoblast cells. BeWo cells were treated with antimycin A (10-320 μM) or rotenone (0.2-50 μM) to induce oxidative stress. A multiplex real-time quantitative PCR (qPCR) assay was used to quantify mtDNA and nuclear DNA in membrane bound, non-membrane bound, and vesicular-bound forms in cell culture supernatants and cell lysates. Treatment with antimycin A increased ROS (p<0.0001), induced cell necrosis (p=0.0004) but not apoptosis (p=0.6471) and was positively associated with release of membrane-bound and non-membrane bound mtDNA (p<0.0001). Antimycin A increased mtDNA content in exosome-like extracellular vesicles (vesicular-bound form; p=0.0019) and reduced autophagy marker expression (LC3A/B, p=0.0002; p62, p<0.001). Rotenone treatment did not influence mtDNA release or cell death (p>0.05). Oxidative stress induces release of mtDNA into the extracellular space and causes non-apoptotic cell death and a reduction in autophagy markers in BeWo cells, an established in vitro model of human trophoblast cells. Intersection between autophagy and necrosis may mediate the release of mtDNA from the placenta in pregnancies exposed to oxidative stress. NEW & NOTEWORTHY This is the first study to test whether trophoblast cells release mitochondrial DNA in response to oxidative stress and to identify mechanisms of release and biological forms of mtDNA from this cellular type. This research identifies potential cellular mechanisms that can be used in future investigations to establish the source and biomarker potential of circulating mitochondrial DNA in preclinical experimental models and humans.
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6
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Li A, Qin Y, Zhang Y, Zhen X, Gong G. Evaluation of Oxygen Consumption Rates In Situ. Methods Mol Biol 2024; 2755:215-226. [PMID: 38319581 DOI: 10.1007/978-1-0716-3633-6_16] [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] [Indexed: 02/07/2024]
Abstract
An analysis of the mitochondrial respiration function represented by the oxygen consumption rate is necessary to assess mitochondrial bioenergetics and redox function. This protocol describes two alternative techniques to evaluate mitochondrial respiration function in situ: (1) measure oxygen consumption rates via an electrode; (2) measure oxygen consumption rates via a seahorse instrument. These in situ approaches provide more physiological access to mitochondria to evaluate mitochondrial respiration function in a relatively integrated cellular system.
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Affiliation(s)
- Anqi Li
- Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
- Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Yuan Qin
- Department of Pharmacy, Shanghai East Hospital, Tongji University, Shanghai, China
| | - Ying Zhang
- Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Xiaoqun Zhen
- Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
- Department of Clinical Laboratory, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Guohua Gong
- Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
- Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
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7
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Li H, Zhang R, Hu Y, Li J, Yang Y, Wu D, Gu X, Zhang F, Zhou H, Yang C. Axitinib attenuates the progression of liver fibrosis by restoring mitochondrial function. Int Immunopharmacol 2023; 122:110555. [PMID: 37399607 DOI: 10.1016/j.intimp.2023.110555] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 06/21/2023] [Accepted: 06/21/2023] [Indexed: 07/05/2023]
Abstract
Liver fibrosis can progress to cirrhosis and hepatocellular carcinoma, which may eventually lead to liver failure and even death. No direct anti-fibrosis drugs are available at present. Axitinib is a new generation of potent multitarget tyrosine kinase receptor inhibitors, but its role in liver fibrosis remains unclear. In this study, a CCl4-induced hepatic fibrosis mouse model and a TGF-β1-induced hepatic stellate cell model were used to explore the effect and mechanism of axitinib on hepatic fibrosis. Results confirmed that axitinib could alleviate the pathological damage of liver tissue induced by CCl4 and inhibit the production of glutamic-oxalacetic transaminase and glutamic-pyruvic transaminase. It also inhibited collagen and hydroxyproline deposition and the protein expression of Col-1 and α-SMA in CCl4-induced liver fibrosis. In addition, axitinib inhibited the expression of CTGF and α-SMA in TGF-β1-induced hepatic stellate cells. Further studies showed that axitinib inhibited mitochondrial damage and reduced oxidative stress and NLRP3 maturation. The use of rotenone and antimycin A confirmed that axitinib could restore the activity of mitochondrial complexes I and III, thereby inhibiting the maturation of NLRP3. In summary, axitinib inhibits the activation of HSCs by enhancing the activity of mitochondrial complexes I and III, thereby alleviating the progression of liver fibrosis. This study reveals the strong potential of axitinib in the treatment of liver fibrosis.
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Affiliation(s)
- Hailong Li
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, China
| | - Ruotong Zhang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, China; High-throughput Molecular Drug Screening Centre, Tianjin International Joint Academy of Biomedicine, Tianjin 300350, China
| | - Yayue Hu
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, China; High-throughput Molecular Drug Screening Centre, Tianjin International Joint Academy of Biomedicine, Tianjin 300350, China
| | - Jinhe Li
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, China; High-throughput Molecular Drug Screening Centre, Tianjin International Joint Academy of Biomedicine, Tianjin 300350, China
| | - Ying Yang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, China
| | - Dan Wu
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, China
| | - Xiaoting Gu
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, China
| | - Fubo Zhang
- Organ Transplantation Center, Tianjin First Central Hospital, No. 24 Fukang Road, Nankai District, Tianjin 300192, China.
| | - Honggang Zhou
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, China; High-throughput Molecular Drug Screening Centre, Tianjin International Joint Academy of Biomedicine, Tianjin 300350, China.
| | - Cheng Yang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, China; High-throughput Molecular Drug Screening Centre, Tianjin International Joint Academy of Biomedicine, Tianjin 300350, China.
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Perez-Abshana LP, Mendivil-Perez M, Velez-Pardo C, Jimenez-Del-Rio M. Rotenone Blocks the Glucocerebrosidase Enzyme and Induces the Accumulation of Lysosomes and Autophagolysosomes Independently of LRRK2 Kinase in HEK-293 Cells. Int J Mol Sci 2023; 24:10589. [PMID: 37445771 DOI: 10.3390/ijms241310589] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/18/2023] [Accepted: 06/19/2023] [Indexed: 07/15/2023] Open
Abstract
Parkinson's disease (PD) is a neurodegenerative disorder caused by the progressive loss of dopaminergic (DAergic) neurons in the substantia nigra and the intraneuronal presence of Lewy bodies (LBs), composed of aggregates of phosphorylated alpha-synuclein at residue Ser129 (p-Ser129α-Syn). Unfortunately, no curative treatment is available yet. To aggravate matters further, the etiopathogenesis of the disorder is still unresolved. However, the neurotoxin rotenone (ROT) has been implicated in PD. Therefore, it has been widely used to understand the molecular mechanism of neuronal cell death. In the present investigation, we show that ROT induces two convergent pathways in HEK-293 cells. First, ROT generates H2O2, which, in turn, either oxidizes the stress sensor protein DJ-Cys106-SH into DJ-1Cys106SO3 or induces the phosphorylation of the protein LRRK2 kinase at residue Ser395 (p-Ser395 LRRK2). Once active, the kinase phosphorylates α-Syn (at Ser129), induces the loss of mitochondrial membrane potential (ΔΨm), and triggers the production of cleaved caspase 3 (CC3), resulting in signs of apoptotic cell death. ROT also reduces glucocerebrosidase (GCase) activity concomitant with the accumulation of lysosomes and autophagolysosomes reflected by the increase in LC3-II (microtubule-associated protein 1A/1B-light chain 3-phosphatidylethanolamine conjugate II) markers in HEK-293 cells. Second, the exposure of HEK-293 LRRK2 knockout (KO) cells to ROT displays an almost-normal phenotype. Indeed, KO cells showed neither H2O2, DJ-1Cys106SO3, p-Ser395 LRRK2, p-Ser129α-Syn, nor CC3 but displayed high ΔΨm, reduced GCase activity, and the accumulation of lysosomes and autophagolysosomes. Similar observations are obtained when HEK-293 LRRK2 wild-type (WT) cells are exposed to the inhibitor GCase conduritol-β-epoxide (CBE). Taken together, these observations imply that the combined development of LRRK2 inhibitors and compounds for recovering GCase activity might be promising therapeutic agents for PD.
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Affiliation(s)
- Laura Patricia Perez-Abshana
- Neuroscience Research Group, Institute of Medical Research, Faculty of Medicine, University of Antioquia, University Research Headquarters, Calle 62#52-59, Building 1, Laboratory 411/412, Medellin 050010, Colombia
| | - Miguel Mendivil-Perez
- Neuroscience Research Group, Institute of Medical Research, Faculty of Medicine, University of Antioquia, University Research Headquarters, Calle 62#52-59, Building 1, Laboratory 411/412, Medellin 050010, Colombia
| | - Carlos Velez-Pardo
- Neuroscience Research Group, Institute of Medical Research, Faculty of Medicine, University of Antioquia, University Research Headquarters, Calle 62#52-59, Building 1, Laboratory 411/412, Medellin 050010, Colombia
| | - Marlene Jimenez-Del-Rio
- Neuroscience Research Group, Institute of Medical Research, Faculty of Medicine, University of Antioquia, University Research Headquarters, Calle 62#52-59, Building 1, Laboratory 411/412, Medellin 050010, Colombia
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9
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Solan ME, Koperski CP, Senthilkumar S, Lavado R. Short-chain per- and polyfluoralkyl substances (PFAS) effects on oxidative stress biomarkers in human liver, kidney, muscle, and microglia cell lines. ENVIRONMENTAL RESEARCH 2023; 223:115424. [PMID: 36740157 DOI: 10.1016/j.envres.2023.115424] [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: 12/02/2022] [Revised: 01/28/2023] [Accepted: 02/02/2023] [Indexed: 06/18/2023]
Abstract
Long-chain per- and polyfluoralkyl substances (PFAS) are ubiquitous contaminants implicated in the induction of intracellular reactive oxygen species (ROS), compromising antioxidant defense mechanisms in vitro and in vivo. While a handful of studies have assessed oxidative stress effects by PFAS, few specifically address short-chain PFAS. We conducted an evaluation of oxidative stress biomarkers in vitro following exposures to low (1 nM) and high (1 μM) concentrations of five short-chain PFAS compounds: perfluorobutanesulfonic acid (PFBS), perfluorohexanoic acid (PFHxA), [undecafluoro-2-methyl-3-oxahexanoic acid (HFPO-DA)], 6:2 fluorotelomer alcohol (6:2 FTOH) and perfluorohexanesulfonic acid (PFHxS). We conducted experiments in human kidney (HEK293-hTLR2), liver (HepaRG), microglia (HMC-3), and muscle (RMS-13) cell lines. Fluorescence microscopy measurements in HepaRG cells indicated ROS generation in cells exposed to PFBS and PFHxA for 24 h. Antioxidant enzyme activities were determined following 24 h short-chain PFAS exposures in HepaRG, HEK293-hTLR2, HMC-3, and RMS-13. Notably, exposure to PFBS for 24 h increased the activity of GPX in all four cell types at 1 μM and 1 nM in HepaRG and RMS-13 cells. Every short-chain PFAS evaluated, except for PFHxS, increased the activity of at least one antioxidant enzyme. To our knowledge, this is the first study of its kind to explore antioxidant defense alterations to microglia and muscle cell lines by PFAS. The findings of this study hold great potential to contribute to the limited understanding of short-chain PFAS mechanisms of toxicity and provide data necessary to inform the human health risk assessment process.
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Affiliation(s)
- Megan E Solan
- Department of Environmental Science, Baylor University, Waco, TX, 76798, USA
| | - Camryn P Koperski
- Department of Environmental Science, Baylor University, Waco, TX, 76798, USA
| | | | - Ramon Lavado
- Department of Environmental Science, Baylor University, Waco, TX, 76798, USA.
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Jin Q, Zhang Y, Cui Y, Shi M, Shi J, Zhu S, Shi T, Zhang R, Chen X, Zong X, Wang C, Li L. PGC 1α-Mediates Mitochondrial Damage in the Liver by Inhibiting the Mitochondrial Respiratory Chain as a Non-cholinergic Mechanism of Repeated Low-Level Soman Exposure. Biol Pharm Bull 2023; 46:563-573. [PMID: 37005300 DOI: 10.1248/bpb.b22-00633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
Abstract
This work aimed to assess whether mitochondrial damage in the liver induced by subacute soman exposure is caused by peroxisome proliferator-activated receptor-gamma coactivator 1 alpha (PGC-1α) and whether PGC-1α regulates mitochondrial respiratory chain damage. Toxicity mechanism research may provide theoretical support for developing anti-toxic drugs in the future. First, a soman animal model was established in male Sprague-Dawley (SD) rats by subcutaneous soman injection. Then, liver damage was biochemically evaluated, and acetylcholinesterase (AChE) activity was also determined. Transmission electron microscopy (TEM) was performed to examine liver mitochondrial damage, and high-resolution respirometry was carried out for assessing mitochondrial respiration function. In addition, complex I-IV levels were quantitatively evaluated in isolated liver mitochondria by enzyme-linked immunosorbent assay (ELISA). PGC-1α levels were detected with a Jess capillary-based immunoassay device. Finally, oxidative stress was analyzed by quantifying superoxide dismutase (SOD), malondialdehyde (MDA), glutathione (GSH), oxidized glutathione (GSSG), and reactive oxygen species (ROS) levels. Repeated low-level soman exposure did not alter AChE activity, while increasing morphological damage of liver mitochondria and liver enzyme levels in rat homogenates. Complex I, II and I + II activities were 2.33, 4.95, and 5.22 times lower after treatment compared with the control group, respectively. Among complexes I-IV, I-III decreased significantly (p < 0.05), and PGC-1α levels were 1.82 times lower after soman exposure than in the control group. Subacute soman exposure significantly increased mitochondrial ROS production, which may cause oxidate stress. These findings indicated dysregulated mitochondrial energy metabolism involves PGC-1α protein expression imbalance, revealing non-cholinergic mechanisms for soman toxicity.
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Affiliation(s)
- Qian Jin
- State Key Laboratory of NBC Protection for Civilian
| | - Yi Zhang
- State Key Laboratory of NBC Protection for Civilian
| | - Yalan Cui
- State Key Laboratory of NBC Protection for Civilian
| | - Meng Shi
- State Key Laboratory of NBC Protection for Civilian
| | - Jingjing Shi
- State Key Laboratory of NBC Protection for Civilian
| | - Siqing Zhu
- State Key Laboratory of NBC Protection for Civilian
| | - Tong Shi
- State Key Laboratory of NBC Protection for Civilian
| | - Ruihua Zhang
- State Key Laboratory of NBC Protection for Civilian
| | - Xuejun Chen
- State Key Laboratory of NBC Protection for Civilian
| | | | - Chen Wang
- State Key Laboratory of NBC Protection for Civilian
| | - Liqin Li
- State Key Laboratory of NBC Protection for Civilian
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11
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Development of an Endoscopic Auto-Fluorescent Sensing Device to Aid in the Detection of Breast Cancer and Inform Photodynamic Therapy. Metabolites 2022; 12:metabo12111097. [PMID: 36422237 PMCID: PMC9697641 DOI: 10.3390/metabo12111097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 10/31/2022] [Accepted: 10/31/2022] [Indexed: 11/16/2022] Open
Abstract
Breast cancer is the most diagnosed cancer type in women, with it being the second most deadly cancer in terms of total yearly mortality. Due to the prevalence of this disease, better methods are needed for both detection and treatment. Reduced nicotinamide adenine dinucleotide (NADH) and flavin adenine dinucleotide (FAD) are autofluorescent biomarkers that lend insight into cell and tissue metabolism. As such, we developed an endoscopic device to measure these metabolites in tissue to differentiate between malignant tumors and normal tissue. We performed initial validations in liquid phantoms as well as compared to a previously validated redox imaging system. We also imaged ex vivo tissue samples after modulation with carbonyl cyanide 4-(trifluoromethoxy) phenylhydrazone (FCCP) and a combination of rotenone and antimycin A. We then imaged the rim and the core of MDA-MB-231 breast cancer tumors, with our results showing that the core of a cancerous lesion has a significantly higher optical redox ratio ([FAD]/([FAD] + [NADH])) than the rim, which agrees with previously published results. The mouse muscle tissues exhibited a significantly lower FAD, higher NADH, and lower redox ratio compared to the tumor core or rim. We also used the endoscope to measure NADH and FAD after photodynamic therapy treatment, a light-activated treatment methodology. Our results found that the NADH signal increases in the malignancy rim and core, while the core of cancers demonstrated a significant increase in the FAD signal.
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12
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Wu T, Tong M, Chu A, Wu K, Niu X, Zhang Z. PM2.5-Induced Programmed Myocardial Cell Death via mPTP Opening Results in Deteriorated Cardiac Function in HFpEF Mice. Cardiovasc Toxicol 2022; 22:746-762. [PMID: 35593990 DOI: 10.1007/s12012-022-09753-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 05/06/2022] [Indexed: 11/03/2022]
Abstract
PM2.5 exposure can induce or exacerbate heart failure and is associated with an increased risk of heart failure hospitalization and mortality; however, the underlying mechanisms remain unclear. This study focuses on the potential mechanisms underlying PM2.5 induction of cardiomyocyte programmed necrosis as well as its promotion of cardiac function impairment in a mouse model of heart failure with preserved ejection fraction (HFpEF). HFpEF mice were exposed to concentrated ambient PM2.5 (CAP) (CAP group) or filtered air (FA) (FA group) for 6 weeks. Changes in myocardial pathology and cardiac function were documented for comparisons between the two groups. In vitro experiments were performed to measure oxidative stress and mitochondrial permeability transition pore (mPTP) dynamics in H9C2 cells following 24 h exposure to PM2.5. Additionally, co-immunoprecipitation was conducted to detect p53 and cyclophilin D (CypD) interactions. The results showed exposure to CAP promoted cardiac function impairment in HFpEF mice. Myocardial pathology analysis and in vitro experiments demonstrated that PM2.5 led to mitochondrial damage in cardiomyocytes and, eventually, their necrosis. Moreover, our experiments also suggested that PM2.5 increases mitochondrial reactive oxygen species (ROS), induces DNA oxidative damage, and decreases the inner mitochondrial membrane potential (ΔΨm). This indicates the presence of mPTP opening. Co-immunoprecipitation results showed a p53/CypD interaction in the myocardial tissue of HFpEF mice in the CAP group. Inhibition of CypD by cyclosporin A was found to reverse PM2.5-induced mPTP opening and H9C2 cell death. In conclusion, PM2.5 induces mPTP opening to stimulate mitochondria-mediated programmed necrosis of cardiomyocytes, and it might exacerbate cardiac function impairment in HFpEF mice.
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Affiliation(s)
- Tingting Wu
- The First Clinical Medical College of Lanzhou University, Lanzhou, 730000, China
- The Second Hospital of Lanzhou University, Lanzhou, 730030, China
| | - Minghui Tong
- The Second Hospital of Lanzhou University, Lanzhou, 730030, China
| | - Aiai Chu
- Department of Cardiology, Gansu Provincial Hospital, Lanzhou, 730000, China
| | - Kaiyue Wu
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200030, China
| | - Xiaowei Niu
- Heart Center, The First Hospital of Lanzhou University, Lanzhou, 730000, China
| | - Zheng Zhang
- Heart Center, The First Hospital of Lanzhou University, Lanzhou, 730000, China.
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13
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Chenna S, Koopman WJH, Prehn JHM, Connolly NMC. Mechanisms and mathematical modelling of ROS production by the mitochondrial electron transport chain. Am J Physiol Cell Physiol 2022; 323:C69-C83. [PMID: 35613354 DOI: 10.1152/ajpcell.00455.2021] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Reactive oxygen species (ROS) are recognised both as damaging molecules and intracellular signalling entities. In addition to its role in ATP generation, the mitochondrial electron transport chain (ETC) constitutes a relevant source of mitochondrial ROS, in particular during pathological conditions. Mitochondrial ROS homeostasis depends on species- and site-dependent ROS production, their bioreactivity, diffusion, and scavenging. However, our quantitative understanding of mitochondrial ROS homeostasis has thus far been hampered by technical limitations, including lack of truly site- and/or ROS-specific reporter molecules. In this context, the use of computational models is of great value to complement and interpret empirical data, as well as to predict variables that are difficult to assess experimentally. During the last decades, various mechanistic models of ETC-mediated ROS production have been developed. Although these often-complex models have generated novel insights, their parameterisation, analysis, and integration with other computational models is not straightforward. In contrast, phenomenological (sometimes termed "minimal") models use a relatively small set of equations to describe empirical relationship(s) between ROS-related and other parameters, and generally aim to explore system behaviour and generate hypotheses for experimental validation. In this review, we first discuss ETC-linked ROS homeostasis and introduce various detailed mechanistic models. Next, we present how bioenergetic parameters (e.g. NADH/NAD+ ratio, mitochondrial membrane potential) relate to site-specific ROS production within the ETC and how these relationships can be used to design minimal models of ROS homeostasis. Finally, we illustrate how minimal models have been applied to explore pathophysiological aspects of ROS.
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Affiliation(s)
- Sandeep Chenna
- Centre for Systems Medicine, Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Werner J H Koopman
- Department of Pediatrics, Amalia Children's Hospital, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud Center for Mitochondrial Disorders (RCMM), Radboud University Medical Center (Radboudumc), Nijmegen, The Netherlands.,Human and Animal Physiology, Wageningen University, Wageningen, The Netherlands
| | - Jochen H M Prehn
- Centre for Systems Medicine, Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, Ireland.,SFI FutureNeuro Research Centre, Dublin, Ireland
| | - Niamh M C Connolly
- Centre for Systems Medicine, Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, Ireland
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14
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Hambardikar V, Guitart-Mampel M, Scoma ER, Urquiza P, Nagana GGA, Raftery D, Collins JA, Solesio ME. Enzymatic Depletion of Mitochondrial Inorganic Polyphosphate (polyP) Increases the Generation of Reactive Oxygen Species (ROS) and the Activity of the Pentose Phosphate Pathway (PPP) in Mammalian Cells. Antioxidants (Basel) 2022; 11:685. [PMID: 35453370 PMCID: PMC9029763 DOI: 10.3390/antiox11040685] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/21/2022] [Accepted: 03/23/2022] [Indexed: 01/27/2023] Open
Abstract
Inorganic polyphosphate (polyP) is an ancient biopolymer that is well preserved throughout evolution and present in all studied organisms. In mammals, it shows a high co-localization with mitochondria, and it has been demonstrated to be involved in the homeostasis of key processes within the organelle, including mitochondrial bioenergetics. However, the exact extent of the effects of polyP on the regulation of cellular bioenergetics, as well as the mechanisms explaining these effects, still remain poorly understood. Here, using HEK293 mammalian cells under Wild-type (Wt) and MitoPPX (cells enzymatically depleted of mitochondrial polyP) conditions, we show that depletion of polyP within mitochondria increased oxidative stress conditions. This is characterized by enhanced mitochondrial O2- and intracellular H2O2 levels, which may be a consequence of the dysregulation of oxidative phosphorylation (OXPHOS) that we have demonstrated in MitoPPX cells in our previous work. These findings were associated with an increase in basal peroxiredoxin-1 (Prx1), superoxide dismutase-2 (SOD2), and thioredoxin (Trx) antioxidant protein levels. Using 13C-NMR and immunoblotting, we assayed the status of glycolysis and the pentose phosphate pathway (PPP) in Wt and MitoPPX cells. Our results show that MitoPPX cells display a significant increase in the activity of the PPP and an increase in the protein levels of transaldolase (TAL), which is a crucial component of the non-oxidative phase of the PPP and is involved in the regulation of oxidative stress. In addition, we observed a trend towards increased glycolysis in MitoPPX cells, which corroborates our prior work. Here, for the first time, we show the crucial role played by mitochondrial polyP in the regulation of mammalian redox homeostasis. Moreover, we demonstrate a significant effect of mitochondrial polyP on the regulation of global cellular bioenergetics in these cells.
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Affiliation(s)
- Vedangi Hambardikar
- Department of Biology and Center for Computational and Integrative Biology (CCIB), College of Arts and Sciences, Rutgers University, Camden, NJ 08103, USA; (V.H.); (M.G.-M.); (E.R.S.); (P.U.)
| | - Mariona Guitart-Mampel
- Department of Biology and Center for Computational and Integrative Biology (CCIB), College of Arts and Sciences, Rutgers University, Camden, NJ 08103, USA; (V.H.); (M.G.-M.); (E.R.S.); (P.U.)
| | - Ernest R. Scoma
- Department of Biology and Center for Computational and Integrative Biology (CCIB), College of Arts and Sciences, Rutgers University, Camden, NJ 08103, USA; (V.H.); (M.G.-M.); (E.R.S.); (P.U.)
| | - Pedro Urquiza
- Department of Biology and Center for Computational and Integrative Biology (CCIB), College of Arts and Sciences, Rutgers University, Camden, NJ 08103, USA; (V.H.); (M.G.-M.); (E.R.S.); (P.U.)
| | - Gowda G. A. Nagana
- Mitochondrial and Metabolism Center, University of Washington, Seattle, WA 98109, USA; (G.G.A.N.); (D.R.)
| | - Daniel Raftery
- Mitochondrial and Metabolism Center, University of Washington, Seattle, WA 98109, USA; (G.G.A.N.); (D.R.)
| | - John A. Collins
- Department of Orthopedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA 19107, USA;
| | - Maria E. Solesio
- Department of Biology and Center for Computational and Integrative Biology (CCIB), College of Arts and Sciences, Rutgers University, Camden, NJ 08103, USA; (V.H.); (M.G.-M.); (E.R.S.); (P.U.)
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15
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Liu J, Ren Z, Yang L, Zhu L, li Y, Bie C, Liu H, Ji Y, Chen D, Zhu M, Kuang W. The NSUN5-FTH1/FTL pathway mediates ferroptosis in bone marrow-derived mesenchymal stem cells. Cell Death Dis 2022; 8:99. [PMID: 35249107 PMCID: PMC8898311 DOI: 10.1038/s41420-022-00902-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 12/16/2021] [Accepted: 02/01/2022] [Indexed: 12/11/2022]
Abstract
AbstractFerroptosis is a type of cell death induced by the iron-dependent accumulation of lipid hydroperoxides and reactive oxygen species (ROS) in cells. Inhibiting ferroptosis is important for improving the survival of transplanted bone marrow-derived mesenchymal stem cells (BMSCs). Although it is known that NOP2/Sun RNA methyltransferase 5 (NSUN5) post-transcriptionally regulates ferroptosis in BMSCs through RNA methylation, the precise mechanisms underlying these effects have not been reported. In this study, we demonstrate that NSUN5 is downregulated in erastin-induced ferroptosis in BMSCs. Ferroptosis was inhibited by the overexpression of NSUN5 or ferritin heavy chain/light-chain (FTH1/FTL) and was enhanced by NSUN5 knockdown. RNA immunoprecipitation experiments revealed that NSUN5 binds to FTH1/FTL, while NSUN5 depletion reduced the levels of 5-methylcytosine in FTH1/FTL RNA and increased intracellular iron concentrations, resulting in the downregulation of glutathione peroxidase 4 (GPX4) and the accumulation of ROS and lipid peroxidation products. Co-immunoprecipitation experiments demonstrated that the recognition of FTH1 and FTL by NSUN5 is dependent on the recruitment of tumor necrosis factor receptor-associated protein 1 (TRAP1). These results suggested that the NSUN5-FTH1/FTL pathway mediates ferroptosis in BMSCs and that the therapeutic targeting of components of this pathway may promote resistance to ferroptosis and improve the survival of transplanted BMSCs.
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16
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Nguyen T, Gronauer TF, Nast‐Kolb T, Sieber SA, Lang K. Substrate Profiling of Mitochondrial Caseinolytic Protease P via a Site‐Specific Photocrosslinking Approach. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202111085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Tuan‐Anh Nguyen
- Department of Chemistry Group of Synthetic Biochemistry Technical University of Munich Lichtenbergstr. 4 85748 Garching Germany
| | - Thomas F. Gronauer
- Center for Protein Assemblies (CPA) Department of Chemistry Chair of Organic Chemistry II Technical University of Munich Lichtenbergstr. 4 85748 Garching Germany
| | - Timon Nast‐Kolb
- Center for Protein Assemblies (CPA) and Lehrstuhl für Biophysik (E27) Physics Department Technical University of Munich Lichtenbergstr. 4 85748 Garching Germany
| | - Stephan A. Sieber
- Center for Protein Assemblies (CPA) Department of Chemistry Chair of Organic Chemistry II Technical University of Munich Lichtenbergstr. 4 85748 Garching Germany
| | - Kathrin Lang
- Department of Chemistry Group of Synthetic Biochemistry Technical University of Munich Lichtenbergstr. 4 85748 Garching Germany
- Laboratory of Organic Chemistry Department of Chemistry and Applied Biosciences Chair of Chemical Biology ETH Zürich Vladimir-Prelog-Weg 3 8093 Zurich Switzerland
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17
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Nguyen TA, Gronauer T, Nast-Kolb T, Sieber S, Lang K. Substrate profiling of mitochondrial caseinolytic protease P via a site-specific photocrosslinking approach. Angew Chem Int Ed Engl 2021; 61:e202111085. [PMID: 34847623 PMCID: PMC9306725 DOI: 10.1002/anie.202111085] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Indexed: 11/17/2022]
Abstract
Approaches for profiling protease substrates are critical for defining protease functions, but remain challenging tasks. We combine genetic code expansion, photocrosslinking and proteomics to identify substrates of the mitochondrial (mt) human caseinolytic protease P (hClpP). Site‐specific incorporation of the diazirine‐bearing amino acid DiazK into the inner proteolytic chamber of hClpP, followed by UV‐irradiation of cells, allows to covalently trap substrate proteins of hClpP and to substantiate hClpP's major involvement in maintaining overall mt homeostasis. In addition to confirming many of the previously annotated hClpP substrates, our approach adds a diverse set of new proteins to the hClpP interactome. Importantly, our workflow allows identifying substrate dynamics upon application of external cues in an unbiased manner. Identification of unique hClpP‐substrate proteins upon induction of mt oxidative stress, suggests that hClpP counteracts oxidative stress by processing of proteins that are involved in respiratory chain complex synthesis and maturation as well as in catabolic pathways.
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Affiliation(s)
- Tuan-Anh Nguyen
- Technical University of Munich: Technische Universitat Munchen, Chemistry, Lichtenbergstr. 4, 85748, Garching, GERMANY
| | - Thomas Gronauer
- Technical University of Munich: Technische Universitat Munchen, Chemistry, Lichtenbergstr. 4, 85748, Garching, GERMANY
| | - Timon Nast-Kolb
- Technische Universität München: Technische Universitat Munchen, Physics, GERMANY
| | - Stephan Sieber
- Technical University of Munich: Technische Universitat Munchen, Chemistry, Lichtenbergstr. 4, 85748, Garching, GERMANY
| | - Kathrin Lang
- ETH-Zürich LOC: Eidgenossische Technische Hochschule Zurich Laboratorium fur Organische Chemie, Chemistry and Applied Biosciences, Vladimir-Prelog-Weg. 3, 8093, Zürich, SWITZERLAND
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18
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Li W, Thian ES, Wang M, Wang Z, Ren L. Surface Design for Antibacterial Materials: From Fundamentals to Advanced Strategies. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2100368. [PMID: 34351704 PMCID: PMC8498904 DOI: 10.1002/advs.202100368] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 05/27/2021] [Indexed: 05/14/2023]
Abstract
Healthcare-acquired infections as well as increasing antimicrobial resistance have become an urgent global challenge, thus smart alternative solutions are needed to tackle bacterial infections. Antibacterial materials in biomedical applications and hospital hygiene have attracted great interest, in particular, the emergence of surface design strategies offer an effective alternative to antibiotics, thereby preventing the possible development of bacterial resistance. In this review, recent progress on advanced surface modifications to prevent bacterial infections are addressed comprehensively, starting with the key factors against bacterial adhesion, followed by varying strategies that can inhibit biofilm formation effectively. Furthermore, "super antibacterial systems" through pre-treatment defense and targeted bactericidal system, are proposed with increasing evidence of clinical potential. Finally, the advantages and future challenges of surface strategies to resist healthcare-associated infections are discussed, with promising prospects of developing novel antimicrobial materials.
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Affiliation(s)
- Wenlong Li
- Department of BiomaterialsState Key Lab of Physical Chemistry of Solid SurfaceCollege of MaterialsXiamen UniversityXiamen361005P. R. China
| | - Eng San Thian
- Department of Mechanical EngineeringNational University of SingaporeSingapore117576Singapore
| | - Miao Wang
- Department of BiomaterialsState Key Lab of Physical Chemistry of Solid SurfaceCollege of MaterialsXiamen UniversityXiamen361005P. R. China
| | - Zuyong Wang
- College of Materials Science and EngineeringHunan UniversityChangsha410082P. R. China
| | - Lei Ren
- Department of BiomaterialsState Key Lab of Physical Chemistry of Solid SurfaceCollege of MaterialsXiamen UniversityXiamen361005P. R. China
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19
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Yoast RE, Emrich SM, Zhang X, Xin P, Arige V, Pathak T, Benson JC, Johnson MT, Abdelnaby AE, Lakomski N, Hempel N, Han JM, Dupont G, Yule DI, Sneyd J, Trebak M. The Mitochondrial Ca 2+ uniporter is a central regulator of interorganellar Ca 2+ transfer and NFAT activation. J Biol Chem 2021; 297:101174. [PMID: 34499925 PMCID: PMC8496184 DOI: 10.1016/j.jbc.2021.101174] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 08/31/2021] [Accepted: 09/03/2021] [Indexed: 12/12/2022] Open
Abstract
Mitochondrial Ca2+ uptake tailors the strength of stimulation of plasma membrane phospholipase C–coupled receptors to that of cellular bioenergetics. However, how Ca2+ uptake by the mitochondrial Ca2+ uniporter (MCU) shapes receptor-evoked interorganellar Ca2+ signaling is unknown. Here, we used CRISPR/Cas9 gene knockout, subcellular Ca2+ imaging, and mathematical modeling to show that MCU is a universal regulator of intracellular Ca2+ signaling across mammalian cell types. MCU activity sustains cytosolic Ca2+ signaling by preventing Ca2+-dependent inactivation of store-operated Ca2+ release–activated Ca2+ channels and by inhibiting Ca2+ extrusion. Paradoxically, MCU knockout (MCU-KO) enhanced cytosolic Ca2+ responses to store depletion. Physiological agonist stimulation in MCU-KO cells led to enhanced frequency of cytosolic Ca2+ oscillations, endoplasmic reticulum Ca2+ refilling, nuclear translocation of nuclear factor for activated T cells transcription factors, and cell proliferation, without altering inositol-1,4,5-trisphosphate receptor activity. Our data show that MCU has dual counterbalancing functions at the cytosol–mitochondria interface, whereby the cell-specific MCU-dependent cytosolic Ca2+ clearance and buffering capacity of mitochondria reciprocally regulate interorganellar Ca2+ transfer and nuclear factor for activated T cells nuclear translocation during receptor-evoked signaling. These findings highlight the critical dual function of the MCU not only in the acute Ca2+ buffering by mitochondria but also in shaping endoplasmic reticulum and cytosolic Ca2+ signals that regulate cellular transcription and function.
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Affiliation(s)
- Ryan E Yoast
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA
| | - Scott M Emrich
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA
| | - Xuexin Zhang
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA
| | - Ping Xin
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA; Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA; Vascular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Vikas Arige
- Department of Pharmacology and Physiology, University of Rochester, Rochester, New York, USA
| | - Trayambak Pathak
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA; Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA; Vascular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - J Cory Benson
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA; Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA; Vascular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Martin T Johnson
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA
| | - Ahmed Emam Abdelnaby
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA; Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA; Vascular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Natalia Lakomski
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA
| | - Nadine Hempel
- Department of Pharmacology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA
| | - Jung Min Han
- Laboratory of Biological Modeling, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Geneviève Dupont
- Unité de Chronobiologie Théorique, Université Libre de Bruxelles, Brussels, Belgium
| | - David I Yule
- Department of Pharmacology and Physiology, University of Rochester, Rochester, New York, USA
| | - James Sneyd
- Department of Mathematics, The University of Auckland, Auckland, New Zealand
| | - Mohamed Trebak
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA; Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA; Vascular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.
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20
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oxLDL-Induced Trained Immunity Is Dependent on Mitochondrial Metabolic Reprogramming. IMMUNOMETABOLISM 2021; 3:e210025. [PMID: 34267957 PMCID: PMC7611242 DOI: 10.20900/immunometab20210025] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Following brief exposure to endogenous atherogenic particles, such as oxidized low-density lipoprotein (oxLDL), monocytes/macrophages can adopt a long-term pro-inflammatory phenotype, which is called trained immunity. This mechanism might contribute to the chronic low-grade inflammation that characterizes atherosclerosis. In this study, we aim to elucidate immunometabolic pathways that drive oxLDL-induced trained immunity. Primary isolated human monocytes were exposed to oxLDL for 24 h, and after five days stimulated with LPS to measure the cytokine production capacity. RNA-sequencing revealed broad increases in genes enriched in mitochondrial pathways after 24 h of oxLDL exposure. Further omics profiling of oxLDL-trained macrophages via intracellular metabolomics showed an enrichment for tricarboxylic acid (TCA) cycle metabolites. Single cell analysis revealed that oxLDL-trained macrophages contain larger mitochondria, potentially likely linked to increased oxidative phosphorylation (OXPHOS) activity. Co-incubation with pharmacological blockers of OXPHOS inhibited oxLDL-induced trained immunity. The relevance of OXPHOS was confirmed in a cohort of 243 healthy subjects showing that genetic variation in genes coding for enzymes relevant to OXPHOS correlated with the capacity of monocytes to be trained with oxLDL. Interestingly, OXPHOS appears to play an important role in the increased cytokine hyperresponsiveness by oxLDL-trained macrophages. The TCA-cycle can also be fuelled by glutamine and free fatty acids, and pharmacological blockade of these pathways could prevent oxLDL-induced trained immunity. This study demonstrates that the mitochondria of oxLDL-trained macrophages undergo changes to their function and form with OXPHOS being an important mechanism for trained immunity, which could unveil novel pharmacological targets to prevent atherogenesis.
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21
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Bustos G, Ahumada-Castro U, Silva-Pavez E, Puebla A, Lovy A, Cesar Cardenas J. The ER-mitochondria Ca 2+ signaling in cancer progression: Fueling the monster. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2021; 363:49-121. [PMID: 34392932 DOI: 10.1016/bs.ircmb.2021.03.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Cancer is a leading cause of death worldwide. All major tumor suppressors and oncogenes are now recognized to have fundamental connections with metabolic pathways. A hallmark feature of cancer cells is a reprogramming of their metabolism even when nutrients are available. Increasing evidence indicates that most cancer cells rely on mitochondrial metabolism to sustain their energetic and biosynthetic demands. Mitochondria are functionally and physically coupled to the endoplasmic reticulum (ER), the major calcium (Ca2+) storage organelle in mammalian cells, through special domains known as mitochondria-ER contact sites (MERCS). In this domain, the release of Ca2+ from the ER is mainly regulated by inositol 1,4,5-trisphosphate (IP3) receptors (IP3Rs), a family of Ca2+ release channels activated by the ligand IP3. IP3R mediated Ca2+ release is transferred to mitochondria through the mitochondrial Ca2+ uniporter (MCU). Once in the mitochondrial matrix, Ca2+ activates several proteins that stimulate mitochondrial performance. The role of IP3R and MCU in cancer, as well as the other proteins that enable the Ca2+ communication between these two organelles is just beginning to be understood. Here, we describe the function of the main players of the ER mitochondrial Ca2+ communication and discuss how this particular signal may contribute to the rise and development of cancer traits.
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Affiliation(s)
- Galdo Bustos
- Faculty of Sciences, Universidad Mayor, Center for Integrative Biology, Santiago, Chile; Geroscience Center for Brain Health and Metabolism, Santiago, Chile
| | - Ulises Ahumada-Castro
- Faculty of Sciences, Universidad Mayor, Center for Integrative Biology, Santiago, Chile; Geroscience Center for Brain Health and Metabolism, Santiago, Chile
| | - Eduardo Silva-Pavez
- Faculty of Sciences, Universidad Mayor, Center for Integrative Biology, Santiago, Chile; Geroscience Center for Brain Health and Metabolism, Santiago, Chile
| | - Andrea Puebla
- Faculty of Sciences, Universidad Mayor, Center for Integrative Biology, Santiago, Chile; Geroscience Center for Brain Health and Metabolism, Santiago, Chile
| | - Alenka Lovy
- Faculty of Sciences, Universidad Mayor, Center for Integrative Biology, Santiago, Chile; Geroscience Center for Brain Health and Metabolism, Santiago, Chile; Department of Neuroscience, Center for Neuroscience Research, Tufts School of Medicine, Boston, MA, United States.
| | - J Cesar Cardenas
- Faculty of Sciences, Universidad Mayor, Center for Integrative Biology, Santiago, Chile; Geroscience Center for Brain Health and Metabolism, Santiago, Chile; Buck Institute for Research on Aging, Novato, CA, United States; Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA, United States.
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22
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Ko HJ, Tsai CY, Chiou SJ, Lai YL, Wang CH, Cheng JT, Chuang TH, Huang CYF, Kwan AL, Loh JK, Hong YR. The Phosphorylation Status of Drp1-Ser637 by PKA in Mitochondrial Fission Modulates Mitophagy via PINK1/Parkin to Exert Multipolar Spindles Assembly during Mitosis. Biomolecules 2021; 11:424. [PMID: 33805672 PMCID: PMC7998912 DOI: 10.3390/biom11030424] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/09/2021] [Accepted: 03/10/2021] [Indexed: 12/11/2022] Open
Abstract
Mitochondrial fission and fusion cycles are integrated with cell cycle progression. Here we first re-visited how mitochondrial ETC inhibition disturbed mitosis progression, resulting in multipolar spindles formation in HeLa cells. Inhibitors of ETC complex I (rotenone, ROT) and complex III (antimycin A, AA) decreased the phosphorylation of Plk1 T210 and Aurora A T288 in the mitotic phase (M-phase), especially ROT, affecting the dynamic phosphorylation status of fission protein dynamin-related protein 1 (Drp1) and the Ser637/Ser616 ratio. We then tested whether specific Drp1 inhibitors, Mdivi-1 or Dynasore, affected the dynamic phosphorylation status of Drp1. Similar to the effects of ROT and AA, our results showed that Mdivi-1 but not Dynasore influenced the dynamic phosphorylation status of Ser637 and Ser616 in Drp1, which converged with mitotic kinases (Cdk1, Plk1, Aurora A) and centrosome-associated proteins to significantly accelerate mitotic defects. Moreover, our data also indicated that evoking mito-Drp1-Ser637 by protein kinase A (PKA) rather than Drp1-Ser616 by Cdk1/Cyclin B resulted in mitochondrial fission via the PINK1/Parkin pathway to promote more efficient mitophagy and simultaneously caused multipolar spindles. Collectively, this study is the first to uncover that mito-Drp1-Ser637 by PKA, but not Drp1-Ser616, drives mitophagy to exert multipolar spindles formation during M-phase.
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Affiliation(s)
- Huey-Jiun Ko
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807378, Taiwan; (H.-J.K.); (Y.-L.L.); (A.-L.K.)
- Department of Biochemistry, College of Medicine, Kaohsiung Medical University, Kaohsiung 807378, Taiwan; (S.-J.C.); (C.-Y.F.H.)
| | - Cheng-Yu Tsai
- Ph.D. Program in Environmental and Occupational Medicine, College of Medicine, Kaohsiung Medical University and National Health Research Institutes, Kaohsiung 80708, Taiwan; (C.-Y.T.); (T.-H.C.)
- Department of Neurosurgery, Kaohsiung Medical University Hospital, Kaohsiung 807378, Taiwan
| | - Shean-Jaw Chiou
- Department of Biochemistry, College of Medicine, Kaohsiung Medical University, Kaohsiung 807378, Taiwan; (S.-J.C.); (C.-Y.F.H.)
| | - Yun-Ling Lai
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807378, Taiwan; (H.-J.K.); (Y.-L.L.); (A.-L.K.)
- Department of Biochemistry, College of Medicine, Kaohsiung Medical University, Kaohsiung 807378, Taiwan; (S.-J.C.); (C.-Y.F.H.)
| | - Chi-Huei Wang
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung 807378, Taiwan;
| | - Jiin-Tsuey Cheng
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan;
| | - Tsung-Hsien Chuang
- Ph.D. Program in Environmental and Occupational Medicine, College of Medicine, Kaohsiung Medical University and National Health Research Institutes, Kaohsiung 80708, Taiwan; (C.-Y.T.); (T.-H.C.)
- Immunology Research Center, National Health Research Institutes, Miaoli 35053, Taiwan
| | - Chi-Ying F. Huang
- Department of Biochemistry, College of Medicine, Kaohsiung Medical University, Kaohsiung 807378, Taiwan; (S.-J.C.); (C.-Y.F.H.)
- Department of Biotechnology and Laboratory Science in Medicine, Institute of Biopharmaceutical Sciences, National Yang-Ming University, Taipei 11221, Taiwan
| | - Aij-Lie Kwan
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807378, Taiwan; (H.-J.K.); (Y.-L.L.); (A.-L.K.)
- Ph.D. Program in Environmental and Occupational Medicine, College of Medicine, Kaohsiung Medical University and National Health Research Institutes, Kaohsiung 80708, Taiwan; (C.-Y.T.); (T.-H.C.)
- Department of Neurosurgery, Kaohsiung Medical University Hospital, Kaohsiung 807378, Taiwan
| | - Joon-Khim Loh
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807378, Taiwan; (H.-J.K.); (Y.-L.L.); (A.-L.K.)
- Department of Neurosurgery, Kaohsiung Medical University Hospital, Kaohsiung 807378, Taiwan
| | - Yi-Ren Hong
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807378, Taiwan; (H.-J.K.); (Y.-L.L.); (A.-L.K.)
- Department of Biochemistry, College of Medicine, Kaohsiung Medical University, Kaohsiung 807378, Taiwan; (S.-J.C.); (C.-Y.F.H.)
- Ph.D. Program in Environmental and Occupational Medicine, College of Medicine, Kaohsiung Medical University and National Health Research Institutes, Kaohsiung 80708, Taiwan; (C.-Y.T.); (T.-H.C.)
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan;
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807378, Taiwan
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23
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Teixeira J, Basit F, Willems PHGM, Wagenaars JA, van de Westerlo E, Amorim R, Cagide F, Benfeito S, Oliveira C, Borges F, Oliveira PJ, Koopman WJH. Mitochondria-targeted phenolic antioxidants induce ROS-protective pathways in primary human skin fibroblasts. Free Radic Biol Med 2021; 163:314-324. [PMID: 33359686 DOI: 10.1016/j.freeradbiomed.2020.12.023] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/10/2020] [Accepted: 12/11/2020] [Indexed: 02/07/2023]
Abstract
Phytochemical antioxidants like gallic and caffeic acid are constituents of the normal human diet that display beneficial health effects, potentially via activating stress response pathways. Using primary human skin fibroblasts (PHSFs) as a model, we here investigated whether such pathways were induced by novel mitochondria-targeted variants of gallic acid (AntiOxBEN2) and caffeic acid (AntiOxCIN4). Both molecules reduced cell viability with similar kinetics and potency (72 h incubation, IC50 ~23 μM). At a relatively high but non-toxic concentration (12.5 μM), AntiOxBEN2 and AntiOxCIN4 increased ROS levels (at 24 h), followed by a decline (at 72 h). Further analysis at the 72 h timepoint demonstrated that AntiOxBEN2 and AntiOxCIN4 did not alter mitochondrial membrane potential (Δψ), but increased cellular glutathione (GSH) levels, mitochondrial NAD(P)H autofluorescence, and mitochondrial superoxide dismutase 2 (SOD2) protein levels. In contrast, cytosolic SOD1 protein levels were not affected. AntiOxBEN2 and AntiOxCIN4 both stimulated the gene expression of Nuclear factor erythroid 2-related factor 2 (NRF2; a master regulator of the cellular antioxidant response toward oxidative stress). AntiOxBEN2 and ANtiOxCIN4 differentially affected the gene expression of the antioxidants Heme oxygenase 1 (HMOX1) and NAD(P)H dehydrogenase (quinone) 1 (NQO1). Both antioxidants did not protect from cell death induced by GSH depletion and AntiOxBEN2 (but not AntiOxCIN4) antagonized hydrogen peroxide-induced cell death. We conclude that AntiOxBEN2 and AntiOxCIN4 increase ROS levels, which stimulates NRF2 expression and, as a consequence, SOD2 and GSH levels. This highlights that AntiOxBEN2 and AntiOxCIN4 can act as prooxidants thereby activating endogenous ROS-protective pathways.
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Affiliation(s)
- José Teixeira
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, UC-Biotech, Biocant Park, 3060-197, Cantanhede, Portugal; CIQUP/Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto (UP), 4169-007, Porto, Portugal; Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands.
| | - Farhan Basit
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands
| | - Peter H G M Willems
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands
| | - Jori A Wagenaars
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands
| | - Els van de Westerlo
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands
| | - Ricardo Amorim
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, UC-Biotech, Biocant Park, 3060-197, Cantanhede, Portugal; CIQUP/Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto (UP), 4169-007, Porto, Portugal
| | - Fernando Cagide
- CIQUP/Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto (UP), 4169-007, Porto, Portugal
| | - Sofia Benfeito
- CIQUP/Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto (UP), 4169-007, Porto, Portugal
| | - Catarina Oliveira
- CIQUP/Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto (UP), 4169-007, Porto, Portugal
| | - Fernanda Borges
- CIQUP/Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto (UP), 4169-007, Porto, Portugal
| | - Paulo J Oliveira
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, UC-Biotech, Biocant Park, 3060-197, Cantanhede, Portugal
| | - Werner J H Koopman
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands.
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24
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Mármol F, Sanchez J, Martínez-Pinteño A. Effects of uric acid on oxidative and nitrosative stress and other related parameters in SH-SY5Y human neuroblastoma cells. Prostaglandins Leukot Essent Fatty Acids 2021; 165:102237. [PMID: 33429354 DOI: 10.1016/j.plefa.2020.102237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 12/23/2020] [Accepted: 12/29/2020] [Indexed: 11/16/2022]
Abstract
Uric acid (UA) comprises about 65% of the total antioxidant capacity of plasma. In patients with acute ischemic stroke, UA reduces the incidence of early clinical worsening and improves patient outcomes compared with placebo. It also reduces infarct growth and improves functional outcomes in some patient subgroups, such as those with hyperglycemia pretreatment. Although UA is widely recognized as an important antioxidant in blood, its precise mechanism of action on the CNS is still unclear. Here, we assess how UA produces an antioxidant effect in neuroblastoma cells subjected to oxidative/nitrosative stress. We also evaluate its action on mitochondrial complexes I and III, as well as the capacity of UA to modify cell death induced by oxidative stress. Other related parameters such as BDNF and PGE2 were also determined. We observed that UA is a very powerful antioxidant which efficiently reduces ROS/RNS stress signaling and cell death during oxidative/nitrosative neurotoxicity. This providing evidence that UA could be used to improve disorders in which ROS and RNS play important role, such as ischemic stroke and chronic neurodegeneration, as confirmed by BDNF results. PGE2 results indicate that UA does not modify the inflammation in control neuroblastoma cells despite an increased in PGE2 levels in ischemic situations.
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Affiliation(s)
- Frederic Mármol
- Departament de Fonaments Clínics. Unitat de Farmacologia. Facultat de Medicina. Universitat de Barcelona, c/Casanova, 143, 08036 Barcelona, Spain.
| | - Juan Sanchez
- Departament de Fonaments Clínics. Unitat de Farmacologia. Facultat de Medicina. Universitat de Barcelona, c/Casanova, 143, 08036 Barcelona, Spain
| | - Albert Martínez-Pinteño
- Departament de Fonaments Clínics. Unitat de Farmacologia. Facultat de Medicina. Universitat de Barcelona, c/Casanova, 143, 08036 Barcelona, Spain
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25
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Kent AC, El Baradie KBY, Hamrick MW. Targeting the Mitochondrial Permeability Transition Pore to Prevent Age-Associated Cell Damage and Neurodegeneration. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6626484. [PMID: 33574977 PMCID: PMC7861926 DOI: 10.1155/2021/6626484] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 01/19/2021] [Accepted: 01/21/2021] [Indexed: 02/07/2023]
Abstract
The aging process is associated with significant alterations in mitochondrial function. These changes in mitochondrial function are thought to involve increased production of reactive oxygen species (ROS), which over time contribute to cell death, senescence, tissue degeneration, and impaired tissue repair. The mitochondrial permeability transition pore (mPTP) is likely to play a critical role in these processes, as increased ROS activates mPTP opening, which further increases ROS production. Injury and inflammation are also thought to increase mPTP opening, and chronic, low-grade inflammation is a hallmark of aging. Nicotinamide adenine dinucleotide (NAD+) can suppress the frequency and duration of mPTP opening; however, NAD+ levels are known to decline with age, further stimulating mPTP opening and increasing ROS release. Research on neurodegenerative diseases, particularly on Parkinson's disease (PD) and Alzheimer's disease (AD), has uncovered significant findings regarding mPTP openings and aging. Parkinson's disease is associated with a reduction in mitochondrial complex I activity and increased oxidative damage of DNA, both of which are linked to mPTP opening and subsequent ROS release. Similarly, AD is associated with increased mPTP openings, as evidenced by amyloid-beta (Aβ) interaction with the pore regulator cyclophilin D (CypD). Targeted therapies that can reduce the frequency and duration of mPTP opening may therefore have the potential to prevent age-related declines in cell and tissue function in various systems including the central nervous system.
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Affiliation(s)
- Andrew C. Kent
- Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- University of Georgia, Athens, GA, USA
| | | | - Mark W. Hamrick
- Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
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26
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Schirris TJJ, Rossell S, de Haas R, Frambach SJCM, Hoogstraten CA, Renkema GH, Beyrath JD, Willems PHGM, Huynen MA, Smeitink JAM, Russel FGM, Notebaart RA. Stimulation of cholesterol biosynthesis in mitochondrial complex I-deficiency lowers reductive stress and improves motor function and survival in mice. Biochim Biophys Acta Mol Basis Dis 2021; 1867:166062. [PMID: 33385517 DOI: 10.1016/j.bbadis.2020.166062] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 12/16/2020] [Accepted: 12/21/2020] [Indexed: 12/27/2022]
Abstract
The majority of cellular energy is produced by the mitochondrial oxidative phosphorylation (OXPHOS) system. Failure of the first OXPHOS enzyme complex, NADH:ubiquinone oxidoreductase or complex I (CI), is associated with multiple signs and symptoms presenting at variable ages of onset. There is no approved drug treatment yet to slow or reverse the progression of CI-deficient disorders. Here, we present a comprehensive human metabolic network model of genetically characterized CI-deficient patient-derived fibroblasts. Model calculations predicted that increased cholesterol production, export, and utilization can counterbalance the surplus of reducing equivalents in patient-derived fibroblasts, as these pathways consume considerable amounts of NAD(P)H. We show that fibrates attenuated increased NAD(P)H levels and improved CI-deficient fibroblast growth by stimulating the production of cholesterol via enhancement of its cellular efflux. In CI-deficient (Ndufs4-/-) mice, fibrate treatment resulted in prolonged survival and improved motor function, which was accompanied by an increased cholesterol efflux from peritoneal macrophages. Our results shine a new light on the use of compensatory biological pathways in mitochondrial dysfunction, which may lead to novel therapeutic interventions for mitochondrial diseases for which currently no cure exists.
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Affiliation(s)
- Tom J J Schirris
- Department of Pharmacology and Toxicology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands; Radboud Center for Mitochondrial Medicine, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands
| | - Sergio Rossell
- Radboud Center for Mitochondrial Medicine, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands; Center for Molecular and Biomolecular Informatics, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands
| | - Ria de Haas
- Radboud Center for Mitochondrial Medicine, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands; Department of Pediatrics, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands
| | - Sanne J C M Frambach
- Department of Pharmacology and Toxicology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands; Radboud Center for Mitochondrial Medicine, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands
| | - Charlotte A Hoogstraten
- Department of Pharmacology and Toxicology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands; Radboud Center for Mitochondrial Medicine, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands
| | - G Herma Renkema
- Radboud Center for Mitochondrial Medicine, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands; Department of Pediatrics, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands
| | - Julien D Beyrath
- Department of Pharmacology and Toxicology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands; Radboud Center for Mitochondrial Medicine, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands
| | - Peter H G M Willems
- Radboud Center for Mitochondrial Medicine, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands; Department of Biochemistry, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands
| | - Martijn A Huynen
- Radboud Center for Mitochondrial Medicine, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands; Center for Molecular and Biomolecular Informatics, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands
| | - Jan A M Smeitink
- Radboud Center for Mitochondrial Medicine, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands; Department of Pediatrics, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands
| | - Frans G M Russel
- Department of Pharmacology and Toxicology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands; Radboud Center for Mitochondrial Medicine, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands.
| | - Richard A Notebaart
- Radboud Center for Mitochondrial Medicine, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands; Center for Molecular and Biomolecular Informatics, Radboud University Medical Center, 6500HB Nijmegen, the Netherlands; Food Microbiology, Wageningen University & Research, 6708WG Wageningen, the Netherlands.
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27
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The redox language in neurodegenerative diseases: oxidative post-translational modifications by hydrogen peroxide. Cell Death Dis 2021; 12:58. [PMID: 33431811 PMCID: PMC7801447 DOI: 10.1038/s41419-020-03355-3] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 12/07/2020] [Indexed: 01/29/2023]
Abstract
Neurodegenerative diseases, a subset of age-driven diseases, have been known to exhibit increased oxidative stress. The resultant increase in reactive oxygen species (ROS) has long been viewed as a detrimental byproduct of many cellular processes. Despite this, therapeutic approaches using antioxidants were deemed unsuccessful in circumventing neurodegenerative diseases. In recent times, it is widely accepted that these toxic by-products could act as secondary messengers, such as hydrogen peroxide (H2O2), to drive important signaling pathways. Notably, mitochondria are considered one of the major producers of ROS, especially in the production of mitochondrial H2O2. As a secondary messenger, cellular H2O2 can initiate redox signaling through oxidative post-translational modifications (oxPTMs) on the thiol group of the amino acid cysteine. With the current consensus that cellular ROS could drive important biological signaling pathways through redox signaling, researchers have started to investigate the role of cellular ROS in the pathogenesis of neurodegenerative diseases. Moreover, mitochondrial dysfunction has been linked to various neurodegenerative diseases, and recent studies have started to focus on the implications of mitochondrial ROS from dysfunctional mitochondria on the dysregulation of redox signaling. Henceforth, in this review, we will focus our attention on the redox signaling of mitochondrial ROS, particularly on mitochondrial H2O2, and its potential implications with neurodegenerative diseases.
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28
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Alspaugh G, Roarke B, Chand A, Penjweini R, Andreoni A, Knutson JR. Developing Analysis Protocols for Monitoring Intracellular Oxygenation Using Fluorescence Lifetime Imaging of Myoglobin-mCherry. Methods Mol Biol 2021; 2304:315-337. [PMID: 34028725 PMCID: PMC8813554 DOI: 10.1007/978-1-0716-1402-0_17] [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] [Indexed: 06/12/2023]
Abstract
Oxygen (O2) is a critical metabolite for cellular function as it fuels aerobic cellular metabolism; further, it is a known regulator of gene expression. Monitoring oxygenation within cells and organelles can provide valuable insights into how O2, or lack thereof, both influences and responds to cell processes. In recent years, fluorescence lifetime imaging microscopy (FLIM) has been used to track several probe concentration independent intracellular phenomena, such as pH, viscosity, and, in conjunction with Förster resonance energy transfer (FRET), protein-protein interactions. Here, we describe methods for synthesizing and expressing the novel FLIM-FRET intracellular O2 probe Myoglobin-mCherry (Myo-mCherry) in cultured cell lines, as well as acquiring FLIM images using a laser scanning confocal microscope configured for two-photon excitation and a time-correlated single photon counting (TCSPC) module. Finally, we provide step-by-step protocols for FLIM analysis of Myo-mCherry using the commercial software SPCImage and conversion of fluorescence lifetime values in each pixel to apparent intracellular oxygen partial pressures (pO2).
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Affiliation(s)
- Greg Alspaugh
- Laboratory of Advanced Microscopy and Biophotonics, National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Branden Roarke
- Laboratory of Advanced Microscopy and Biophotonics, National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Alexandra Chand
- Laboratory of Advanced Microscopy and Biophotonics, National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Rozhin Penjweini
- Laboratory of Advanced Microscopy and Biophotonics, National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Alessio Andreoni
- Laboratory of Advanced Microscopy and Biophotonics, National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Jay R Knutson
- Laboratory of Advanced Microscopy and Biophotonics, National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD, USA.
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29
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Li Y, Wei Z, Huang S, Yang B. mRNA expression and DNA methylation analysis of the inhibitory mechanism of H 2O 2 on the proliferation of A549 cells. Oncol Lett 2020; 20:288. [PMID: 33014166 PMCID: PMC7520746 DOI: 10.3892/ol.2020.12151] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 08/18/2020] [Indexed: 01/29/2023] Open
Abstract
Reactive oxygen species, particularly hydrogen peroxide (H2O2), can induce proliferation inhibition and death of A549 cells via oxidative stress. Oxidative stress has effect on DNA methylation. Oxidative stress and DNA methylation feature a common denominator: The one carbon cycle. To explore the inhibitory mechanism of H2O2 on the proliferation of lung cancer cells, the present study analysed the mRNA expression and methylation profiles in A549 cells treated with H2O2 for 24 h, as adenocarcinoma is the most common pathological type of lung cancer. The DNA methylation profile was constructed using reduced representation bisulphite sequencing, which identified 29,755 differentially methylated sites (15,365 upregulated and 14,390 downregulated), and 1,575 differentially methylated regions located in the gene promoters were identified using the methylKit. Analysis of the assocaition between gene expression and methylation levels revealed that several genes were downregulated and hypermethylated, including cyclin-dependent kinase inhibitor 3, denticleless E3 ubiquitin protein ligase homolog, centromere protein (CENP)F, kinesin family member (KIF)20A, CENPA, KIF11, PCNA clamp-associated factor and GINS complex subunit 2, which may be involved in the inhibitory process of H2O2 on the proliferation of A549 cells.
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Affiliation(s)
- Yepeng Li
- Department of Oncology, Biomedical Research Center, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi Zhuang Autonomous Region 533000, P.R. China
| | - Zhongheng Wei
- Department of Oncology, Biomedical Research Center, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi Zhuang Autonomous Region 533000, P.R. China
| | - Shiqing Huang
- Department of Oncology, Biomedical Research Center, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi Zhuang Autonomous Region 533000, P.R. China
| | - Bo Yang
- Key Laboratory of Guangxi College and Universities, Biomedical Research Center, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi Zhuang Autonomous Region 533000, P.R. China
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Lee HY, Kim HK, Hoang TH, Yang S, Kim HR, Chae HJ. The correlation of IRE1α oxidation with Nox4 activation in aging-associated vascular dysfunction. Redox Biol 2020; 37:101727. [PMID: 33010578 PMCID: PMC7530295 DOI: 10.1016/j.redox.2020.101727] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 09/10/2020] [Accepted: 09/11/2020] [Indexed: 02/07/2023] Open
Abstract
Oxidative stress attributable to the activation of a Nox4-containing NADPH oxidase is involved in aging-associated vascular dysfunction. However, the Nox4-induced signaling mechanism for the vascular alteration in aging remains unclear. In an aged aorta, the expression of Nox4 mRNA and protein by Nox family of genes was markedly increased compared with a young aorta. Nox4 localization mainly to ER was also established. In the aorta of Nox4 WT mice aged 23–24 months (aged), reactive oxygen species (ROS) and endoplasmic reticulum (ER)/oxidative stress were markedly increased compared with the counter KO mice. Furthermore, endothelial functions including eNOS coupling process and acetylcholine-induced vasodilation were significantly disturbed in the aged WT, slightly affected in the counter KO aorta. Consistently, in d-galactose-induced in vitro aging condition, ER-ROS and its associated ER Nox4 expression and activity were highly increased. Also, in chronic d-galactose-treated condition, IRE1α phosphorylation and XBP-1 splicing and were transiently increased, but IRE1α sulfonation was robustly increased in the aging Nox4 WT condition when compared to the counter KO condition. In vitro D-gal-induced aging study, the phenomenon were abrogated with Nox4 knock-down condition and was significantly decreased in GKT, Nox4 inhibitor and 4-PBA, ER chemical chaperone-treated human umbilical vein endothelial cells. The state of Nox4-based ER redox imbalance/ROS accumulation is suggested to determine the pathway “the UPR; IRE1α phosphorylation and XBP-1 splicing and the UPR failure; IRE1α cysteine-based oxidation, especially sulfonation, finally controlling aging-associated vascular dysfunction.
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Affiliation(s)
- Hwa-Young Lee
- Department of Pharmacology and Institute of New Drug Development, Jeonbuk National University Medical School, Jeonju, Jeonbuk, 54907, Republic of Korea; Non-Clinical Evaluation Center Biomedical Research Institute, Jeonbuk National University Hospital, Jeonju, Jeonbuk, 54907, South Korea
| | - Hyun-Kyoung Kim
- School of Pharmacy, Jeonbuk National University, Jeonju, Jeonbuk, 54907, Republic of Korea
| | - The-Hiep Hoang
- Department of Pharmacology and Institute of New Drug Development, Jeonbuk National University Medical School, Jeonju, Jeonbuk, 54907, Republic of Korea; Non-Clinical Evaluation Center Biomedical Research Institute, Jeonbuk National University Hospital, Jeonju, Jeonbuk, 54907, South Korea
| | - Siyoung Yang
- Department of Pharmacology, Ajou University School of Medicine, Suwon, 16499, Republic of Korea
| | - Hyung-Ryong Kim
- College of Dentistry, Dankook University, Cheonan, 152, Republic of Korea
| | - Han-Jung Chae
- Non-Clinical Evaluation Center Biomedical Research Institute, Jeonbuk National University Hospital, Jeonju, Jeonbuk, 54907, South Korea; School of Pharmacy, Jeonbuk National University, Jeonju, Jeonbuk, 54907, Republic of Korea.
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Aparicio-Trejo OE, Rojas-Morales P, Avila-Rojas SH, León-Contreras JC, Hernández-Pando R, Jiménez-Uribe AP, Prieto-Carrasco R, Sánchez-Lozada LG, Pedraza-Chaverri J, Tapia E. Temporal Alterations in Mitochondrial β-Oxidation and Oxidative Stress Aggravate Chronic Kidney Disease Development in 5/6 Nephrectomy Induced Renal Damage. Int J Mol Sci 2020; 21:ijms21186512. [PMID: 32899919 PMCID: PMC7555424 DOI: 10.3390/ijms21186512] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 09/04/2020] [Accepted: 09/04/2020] [Indexed: 12/17/2022] Open
Abstract
Five-sixths nephrectomy (5/6Nx) model is widely used for studying the mechanisms involved in chronic kidney disease (CKD) progression, a kidney pathology that has increased dramatically in recent years. Mitochondrial impairment is a key mechanism that aggravates CKD progression; however, the information on mitochondrial bioenergetics and redox alterations along a time course in a 5/6Nx model is still limited and in some cases contradictory. Therefore, we performed for the first time a time-course study of mitochondrial alterations by high-resolution respirometry in the 5/6Nx model. Our results show a decrease in mitochondrial β-oxidation at early times, as well as a permanent impairment in adenosine triphosphate (ATP) production in CI-linked respiration, a permanent oxidative state in mitochondria and decoupling of these organelles. These pathological alterations are linked to the early decrease in complex I and ATP synthase activities and to the further decrease in complex III activity. Therefore, our results may suggest that mitochondrial bioenergetics impairment is an early event in renal damage, whose persistence in time aggravates CKD development in the 5/6Nx model.
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Affiliation(s)
- Omar Emiliano Aparicio-Trejo
- Department of Cardio-Renal Pathophysiology, National Institute of Cardiology “Ignacio Chávez”, Mexico City 14080, Mexico; (O.E.A.-T.); (P.R.-M.); (L.G.S.-L.)
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City 04510, Mexico; (S.H.A.-R.); (A.P.J.-U.); (R.P.-C.); (J.P.-C.)
| | - Pedro Rojas-Morales
- Department of Cardio-Renal Pathophysiology, National Institute of Cardiology “Ignacio Chávez”, Mexico City 14080, Mexico; (O.E.A.-T.); (P.R.-M.); (L.G.S.-L.)
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City 04510, Mexico; (S.H.A.-R.); (A.P.J.-U.); (R.P.-C.); (J.P.-C.)
| | - Sabino Hazael Avila-Rojas
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City 04510, Mexico; (S.H.A.-R.); (A.P.J.-U.); (R.P.-C.); (J.P.-C.)
| | - Juan Carlos León-Contreras
- Experimental Pathology Section, National Institute of Medical Sciences and Nutrition “Salvador Zubirán”, Mexico City 14000, Mexico; (J.C.L.-C.); (R.H.-P.)
| | - Rogelio Hernández-Pando
- Experimental Pathology Section, National Institute of Medical Sciences and Nutrition “Salvador Zubirán”, Mexico City 14000, Mexico; (J.C.L.-C.); (R.H.-P.)
| | - Alexis Paulina Jiménez-Uribe
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City 04510, Mexico; (S.H.A.-R.); (A.P.J.-U.); (R.P.-C.); (J.P.-C.)
| | - Rodrigo Prieto-Carrasco
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City 04510, Mexico; (S.H.A.-R.); (A.P.J.-U.); (R.P.-C.); (J.P.-C.)
| | - Laura Gabriela Sánchez-Lozada
- Department of Cardio-Renal Pathophysiology, National Institute of Cardiology “Ignacio Chávez”, Mexico City 14080, Mexico; (O.E.A.-T.); (P.R.-M.); (L.G.S.-L.)
| | - José Pedraza-Chaverri
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City 04510, Mexico; (S.H.A.-R.); (A.P.J.-U.); (R.P.-C.); (J.P.-C.)
| | - Edilia Tapia
- Department of Cardio-Renal Pathophysiology, National Institute of Cardiology “Ignacio Chávez”, Mexico City 14080, Mexico; (O.E.A.-T.); (P.R.-M.); (L.G.S.-L.)
- Correspondence:
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Aparicio-Trejo OE, Avila-Rojas SH, Tapia E, Rojas-Morales P, León-Contreras JC, Martínez-Klimova E, Hernández-Pando R, Sánchez-Lozada LG, Pedraza-Chaverri J. Chronic impairment of mitochondrial bioenergetics and β-oxidation promotes experimental AKI-to-CKD transition induced by folic acid. Free Radic Biol Med 2020; 154:18-32. [PMID: 32360615 DOI: 10.1016/j.freeradbiomed.2020.04.016] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/27/2020] [Accepted: 04/17/2020] [Indexed: 12/13/2022]
Abstract
Recent studies suggest that mitochondrial bioenergetics and oxidative stress alterations may be common mechanisms involved in the progression of renal damage. However, the evolution of the mitochondrial alterations over time and the possible effects that their prevention could have in the progression of renal damage are not clear. Folic acid (FA)-induced kidney damage is a widely used experimental model to induce acute kidney injury (AKI), which can evolve to chronic kidney disease (CKD). Therefore, it has been extensively applied to study the mechanisms involved in AKI-to-CKD transition. We previously demonstrated that one day after FA administration, N-acetyl-cysteine (NAC) pre-administration prevented the development of AKI induced by FA. Such therapeutic effect was related to mitochondrial preservation. In the present study, we characterized the temporal course of mitochondrial bioenergetics and redox state alterations along the progression of renal damage induced by FA. Mitochondrial function was studied at different time points and showed a sustained impairment in oxidative phosphorylation capacity and a decrease in β-oxidation, decoupling, mitochondrial membrane potential depolarization and a pro-oxidative state, attributed to the reduction in activity of complexes I and III and mitochondrial cristae effacement, thus favoring the transition from AKI to CKD. Furthermore, the mitochondrial protection by NAC administration before AKI prevented not only the long-term deterioration of mitochondrial function at the chronic stage, but also CKD development. Taken together, our results support the idea that the prevention of mitochondrial dysfunction during an AKI event can be a useful strategy to prevent the transition to CKD.
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Affiliation(s)
- Omar Emiliano Aparicio-Trejo
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City, 04510, Mexico
| | - Sabino Hazael Avila-Rojas
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City, 04510, Mexico
| | - Edilia Tapia
- Department of Cardio-Renal Physiopathology, National Institute of Cardiology "Ignacio Chávez", Mexico City, 14080, Mexico
| | - Pedro Rojas-Morales
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City, 04510, Mexico
| | - Juan Carlos León-Contreras
- Experimental Pathology Section, National Institute of Medical Sciences and Nutrition ''Salvador Zubirán'', 14000, Mexico, Mexico City, Mexico
| | - Elena Martínez-Klimova
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City, 04510, Mexico
| | - Rogelio Hernández-Pando
- Experimental Pathology Section, National Institute of Medical Sciences and Nutrition ''Salvador Zubirán'', 14000, Mexico, Mexico City, Mexico
| | - Laura Gabriela Sánchez-Lozada
- Department of Cardio-Renal Physiopathology, National Institute of Cardiology "Ignacio Chávez", Mexico City, 14080, Mexico
| | - José Pedraza-Chaverri
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City, 04510, Mexico.
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Study of Eosinophil Apoptosis Induced by Fasciola hepatica Excretory-Secretory Products. Methods Mol Biol 2020. [PMID: 32399926 DOI: 10.1007/978-1-0716-0475-5_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
The excretory-secretory products released by the liver fluke Fasciola hepatica (FhESP) are in close contact with the immune system and have different immunomodulatory effects associated with the parasite virulence. The control of the early immune response is crucial for the establishment of the fluke in the host. Related to this, eosinophils (Eo) are implicated as effector cells in helminthic infections, and the induction of Eo apoptosis has been demonstrated to be a remarkable immunoevasion mechanism induced by the parasite. In this chapter, we describe different techniques to assay Eo apoptosis triggered by FhESP as well as the mechanisms involved in this phenomenon.
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Pak VV, Ezeriņa D, Lyublinskaya OG, Pedre B, Tyurin-Kuzmin PA, Mishina NM, Thauvin M, Young D, Wahni K, Martínez Gache SA, Demidovich AD, Ermakova YG, Maslova YD, Shokhina AG, Eroglu E, Bilan DS, Bogeski I, Michel T, Vriz S, Messens J, Belousov VV. Ultrasensitive Genetically Encoded Indicator for Hydrogen Peroxide Identifies Roles for the Oxidant in Cell Migration and Mitochondrial Function. Cell Metab 2020; 31:642-653.e6. [PMID: 32130885 PMCID: PMC7088435 DOI: 10.1016/j.cmet.2020.02.003] [Citation(s) in RCA: 176] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 11/18/2019] [Accepted: 02/07/2020] [Indexed: 11/19/2022]
Abstract
Hydrogen peroxide (H2O2) is a key redox intermediate generated within cells. Existing probes for H2O2 have not solved the problem of detection of the ultra-low concentrations of the oxidant: these reporters are not sensitive enough, or pH-dependent, or insufficiently bright, or not functional in mammalian cells, or have poor dynamic range. Here we present HyPer7, the first bright, pH-stable, ultrafast, and ultrasensitive ratiometric H2O2 probe. HyPer7 is fully functional in mammalian cells and in other higher eukaryotes. The probe consists of a circularly permuted GFP integrated into the ultrasensitive OxyR domain from Neisseria meningitidis. Using HyPer7, we were able to uncover the details of H2O2 diffusion from the mitochondrial matrix, to find a functional output of H2O2 gradients in polarized cells, and to prove the existence of H2O2 gradients in wounded tissue in vivo. Overall, HyPer7 is a probe of choice for real-time H2O2 imaging in various biological contexts.
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Affiliation(s)
- Valeriy V Pak
- Department of Metabolism and Redox Biology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow 117997, Russia; Institute for Cardiovascular Physiology, Georg August University Göttingen, Göttingen 37073, Germany
| | - Daria Ezeriņa
- VIB-VUB Center for Structural Biology, Vlaams Instituut voor Biotechnologie - Vrije Universiteit Brussel, B-1050 Brussels, Belgium; Brussels Center for Redox Biology, Vrije Universiteit Brussel, B-1050 Brussels, Belgium; Structural Biology Brussels, Vrije Universiteit Brussel, B-1050 Brussels, Belgium
| | - Olga G Lyublinskaya
- Department of Intracellular Signaling and Transport, Institute of Cytology, Russian Academy of Sciences, St. Petersburg 194064, Russia
| | - Brandán Pedre
- VIB-VUB Center for Structural Biology, Vlaams Instituut voor Biotechnologie - Vrije Universiteit Brussel, B-1050 Brussels, Belgium; Brussels Center for Redox Biology, Vrije Universiteit Brussel, B-1050 Brussels, Belgium; Structural Biology Brussels, Vrije Universiteit Brussel, B-1050 Brussels, Belgium
| | | | - Natalie M Mishina
- Department of Metabolism and Redox Biology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow 117997, Russia
| | - Marion Thauvin
- Center for Interdisciplinary Research in Biology (CIRB), Collège de France, CNRS, INSERM, PSL Research University, Paris 75231, France; Sorbonne Université, Collège Doctoral, Paris 75005, France
| | - David Young
- VIB-VUB Center for Structural Biology, Vlaams Instituut voor Biotechnologie - Vrije Universiteit Brussel, B-1050 Brussels, Belgium; Brussels Center for Redox Biology, Vrije Universiteit Brussel, B-1050 Brussels, Belgium; Structural Biology Brussels, Vrije Universiteit Brussel, B-1050 Brussels, Belgium
| | - Khadija Wahni
- VIB-VUB Center for Structural Biology, Vlaams Instituut voor Biotechnologie - Vrije Universiteit Brussel, B-1050 Brussels, Belgium; Brussels Center for Redox Biology, Vrije Universiteit Brussel, B-1050 Brussels, Belgium; Structural Biology Brussels, Vrije Universiteit Brussel, B-1050 Brussels, Belgium
| | - Santiago Agustín Martínez Gache
- VIB-VUB Center for Structural Biology, Vlaams Instituut voor Biotechnologie - Vrije Universiteit Brussel, B-1050 Brussels, Belgium; Brussels Center for Redox Biology, Vrije Universiteit Brussel, B-1050 Brussels, Belgium; Structural Biology Brussels, Vrije Universiteit Brussel, B-1050 Brussels, Belgium
| | - Alexandra D Demidovich
- Department of Metabolism and Redox Biology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow 117997, Russia
| | - Yulia G Ermakova
- Department of Metabolism and Redox Biology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow 117997, Russia; European Molecular Biology Laboratory, Heidelberg 69117, Germany
| | - Yulia D Maslova
- Department of Metabolism and Redox Biology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow 117997, Russia
| | - Arina G Shokhina
- Department of Metabolism and Redox Biology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow 117997, Russia
| | - Emrah Eroglu
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Dmitry S Bilan
- Department of Metabolism and Redox Biology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow 117997, Russia; Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Pirogov Russian National Research Medical University, Moscow 117997, Russia
| | - Ivan Bogeski
- Institute for Cardiovascular Physiology, Georg August University Göttingen, Göttingen 37073, Germany
| | - Thomas Michel
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Sophie Vriz
- Center for Interdisciplinary Research in Biology (CIRB), Collège de France, CNRS, INSERM, PSL Research University, Paris 75231, France; University Paris-Diderot, Paris 75006, France
| | - Joris Messens
- VIB-VUB Center for Structural Biology, Vlaams Instituut voor Biotechnologie - Vrije Universiteit Brussel, B-1050 Brussels, Belgium; Brussels Center for Redox Biology, Vrije Universiteit Brussel, B-1050 Brussels, Belgium; Structural Biology Brussels, Vrije Universiteit Brussel, B-1050 Brussels, Belgium
| | - Vsevolod V Belousov
- Department of Metabolism and Redox Biology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow 117997, Russia; Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Pirogov Russian National Research Medical University, Moscow 117997, Russia; Institute for Cardiovascular Physiology, Georg August University Göttingen, Göttingen 37073, Germany; Federal Center for Cerebrovascular Pathology and Stroke, Moscow 117997, Russia.
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35
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Liu J, Li X, Cai R, Ren Z, Zhang A, Deng F, Chen D. Simultaneous Study of Anti-Ferroptosis and Antioxidant Mechanisms of Butein and ( S)-Butin. Molecules 2020; 25:E674. [PMID: 32033283 PMCID: PMC7036861 DOI: 10.3390/molecules25030674] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 02/04/2020] [Accepted: 02/04/2020] [Indexed: 12/14/2022] Open
Abstract
To elucidate the mechanism of anti-ferroptosis and examine structural optimization in natural phenolics, cellular and chemical assays were performed with 2'-hydroxy chalcone butein and dihydroflavone (S)-butin. C11-BODIPY staining and flow cytometric assays suggest that butein more effectively inhibits ferroptosis in erastin-treated bone marrow-derived mesenchymal stem cells than (S)-butin. Butein also exhibited higher antioxidant percentages than (S)-butin in five antioxidant assays: linoleic acid emulsion assay, Fe3+-reducing antioxidant power assay, Cu2+-reducing antioxidant power assay, 2-phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl 3-oxide radical (PTIO•)-trapping assay, and α,α-diphenyl-β-picrylhydrazyl radical (DPPH•)-trapping assay. Their reaction products with DPPH• were further analyzed using ultra-performance liquid chromatography coupled with electrospray ionization quadrupole time-of-flight tandem mass spectrometry (UPLC-ESI-Q-TOF-MS). Butein and (S)-butin produced a butein 5,5-dimer (m/z 542, 271, 253, 225, 135, and 91) and a (S)-butin 5',5'-dimer (m/z 542, 389, 269, 253, and 151), respectively. Interestingly, butein forms a cross dimer with (S)-butin (m/z 542, 523, 433, 419, 415, 406, and 375). Therefore, we conclude that butein and (S)-butin exert anti-ferroptotic action via an antioxidant pathway (especially the hydrogen atom transfer pathway). Following this pathway, butein and (S)-butin yield both self-dimers and cross dimers. Butein displays superior antioxidant or anti-ferroptosis action to (S)-butin. This can be attributed the decrease in π-π conjugation in butein due to saturation of its α,β-double bond and loss of its 2'-hydroxy group upon biocatalytical isomerization.
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Affiliation(s)
- Jie Liu
- School of Basic Medical Science, Guangzhou University of Chinese Medicine, Guangzhou 510006, China;
- The Research Center of Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Xican Li
- School of Chinese Herbal Medicine, Guangzhou University of Chinese Medicine, Waihuan East Road No. 232, Guangzhou Higher Education Mega Center, Guangzhou 510006, China; (R.C.); (Z.R.); (A.Z.); (F.D.)
| | - Rongxin Cai
- School of Chinese Herbal Medicine, Guangzhou University of Chinese Medicine, Waihuan East Road No. 232, Guangzhou Higher Education Mega Center, Guangzhou 510006, China; (R.C.); (Z.R.); (A.Z.); (F.D.)
| | - Ziwei Ren
- School of Chinese Herbal Medicine, Guangzhou University of Chinese Medicine, Waihuan East Road No. 232, Guangzhou Higher Education Mega Center, Guangzhou 510006, China; (R.C.); (Z.R.); (A.Z.); (F.D.)
| | - Aizhen Zhang
- School of Chinese Herbal Medicine, Guangzhou University of Chinese Medicine, Waihuan East Road No. 232, Guangzhou Higher Education Mega Center, Guangzhou 510006, China; (R.C.); (Z.R.); (A.Z.); (F.D.)
| | - Fangdan Deng
- School of Chinese Herbal Medicine, Guangzhou University of Chinese Medicine, Waihuan East Road No. 232, Guangzhou Higher Education Mega Center, Guangzhou 510006, China; (R.C.); (Z.R.); (A.Z.); (F.D.)
| | - Dongfeng Chen
- School of Basic Medical Science, Guangzhou University of Chinese Medicine, Guangzhou 510006, China;
- The Research Center of Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
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Ouyang X, Li X, Liu J, Liu Y, Xie Y, Du Z, Xie H, Chen B, Lu W, Chen D. Structure–activity relationship and mechanism of four monostilbenes with respect to ferroptosis inhibition. RSC Adv 2020; 10:31171-31179. [PMID: 35520676 PMCID: PMC9056428 DOI: 10.1039/d0ra04896h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 08/08/2020] [Indexed: 12/20/2022] Open
Abstract
Erastin-treated bone marrow-derived mesenchymal stem cells (bmMSCs) were prepared and used to compare the ferroptosis inhibitory bioactivities of four monostilbenes, including rhapontigenin (1a), isorhapontigenin (1b), piceatannol-3′-O-glucoside (1c), and rhapontin (1d). Their relative levels were 1c ≈ 1b > 1a ≈ 1d in 4,4-difluoro-5-(4-phenyl-1,3-butadienyl)-4-bora-3a,4a-diaza-s-indacene-3-undecanoic acid (C11-BODIPY), 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), and flow cytometric assays. The comparison highlighted two 4′-OH-containing monostilbenes (1c and 1b) in ferroptosis inhibitory bioactivity. Similar structure–activity relationships were also observed in antioxidant assays, including 1,1-diphenyl-2-picryl-hydrazl radical (DPPH˙)-trapping, 2-phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl 3-oxide radical (PTIO˙)-trapping, and Fe3+-reducing assays. UPLC-ESI-Q-TOF-MS analysis of the DPPH˙-trapping reaction of the monostilbenes revealed that they can inhibit ferroptosis in erastin-treated bmMSCs through a hydrogen donation-based antioxidant pathway. After hydrogen donation, these monostilbenes usually produce the corresponding stable dimers; additionally, the hydrogen donation potential was enhanced by the 4′-OH. The enhancement by 4′-OH can be attributed to the transannular resonance effect. This effect can be used to predict the inhibition potential of other π–π conjugative phenolics. Erastin-treated bone marrow-derived mesenchymal stem cells (bmMSCs) were prepared and used to compare the ferroptosis inhibitory bioactivities of four monostilbenes, including rhapontigenin (1a), isorhapontigenin (1b), piceatannol-3′-O-glucoside (1c), and rhapontin (1d).![]()
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Affiliation(s)
- Xiaojian Ouyang
- School of Chinese Herbal Medicine
- Guangzhou University of Chinese Medicine
- Guangzhou 510006
- China
| | - Xican Li
- School of Chinese Herbal Medicine
- Guangzhou University of Chinese Medicine
- Guangzhou 510006
- China
| | - Jie Liu
- School of Basic Medical Science
- Guangzhou University of Chinese Medicine
- Guangzhou 510006
- China
- The Research Center of Basic Integrative Medicine
| | - Yangping Liu
- School of Basic Medical Science
- Guangzhou University of Chinese Medicine
- Guangzhou 510006
- China
- The Research Center of Basic Integrative Medicine
| | - Yulu Xie
- School of Chinese Herbal Medicine
- Guangzhou University of Chinese Medicine
- Guangzhou 510006
- China
| | - Zhongcun Du
- School of Chinese Herbal Medicine
- Guangzhou University of Chinese Medicine
- Guangzhou 510006
- China
| | - Hong Xie
- School of Chinese Herbal Medicine
- Guangzhou University of Chinese Medicine
- Guangzhou 510006
- China
| | - Ban Chen
- School of Chinese Herbal Medicine
- Guangzhou University of Chinese Medicine
- Guangzhou 510006
- China
| | - Wenbiao Lu
- School of Chinese Herbal Medicine
- Guangzhou University of Chinese Medicine
- Guangzhou 510006
- China
| | - Dongfeng Chen
- School of Basic Medical Science
- Guangzhou University of Chinese Medicine
- Guangzhou 510006
- China
- The Research Center of Basic Integrative Medicine
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37
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Costa R, Peruzzo R, Bachmann M, Montà GD, Vicario M, Santinon G, Mattarei A, Moro E, Quintana-Cabrera R, Scorrano L, Zeviani M, Vallese F, Zoratti M, Paradisi C, Argenton F, Brini M, Calì T, Dupont S, Szabò I, Leanza L. Impaired Mitochondrial ATP Production Downregulates Wnt Signaling via ER Stress Induction. Cell Rep 2019; 28:1949-1960.e6. [PMID: 31433973 DOI: 10.1016/j.celrep.2019.07.050] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 03/01/2019] [Accepted: 07/16/2019] [Indexed: 02/02/2023] Open
Abstract
Wnt signaling affects fundamental development pathways and, if aberrantly activated, promotes the development of cancers. Wnt signaling is modulated by different factors, but whether the mitochondrial energetic state affects Wnt signaling is unknown. Here, we show that sublethal concentrations of different compounds that decrease mitochondrial ATP production specifically downregulate Wnt/β-catenin signaling in vitro in colon cancer cells and in vivo in zebrafish reporter lines. Accordingly, fibroblasts from a GRACILE syndrome patient and a generated zebrafish model lead to reduced Wnt signaling. We identify a mitochondria-Wnt signaling axis whereby a decrease in mitochondrial ATP reduces calcium uptake into the endoplasmic reticulum (ER), leading to endoplasmic reticulum stress and to impaired Wnt signaling. In turn, the recovery of the ATP level or the inhibition of endoplasmic reticulum stress restores Wnt activity. These findings reveal a mechanism that links mitochondrial energetic metabolism to the control of the Wnt pathway that may be beneficial against several pathologies.
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Affiliation(s)
- Roberto Costa
- Department of Biology, University of Padova, Padova, Italy
| | | | | | | | - Mattia Vicario
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Giulia Santinon
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Andrea Mattarei
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Padova, Italy
| | - Enrico Moro
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Rubén Quintana-Cabrera
- Department of Biology, University of Padova, Padova, Italy; Venetian Institute of Molecular Medicine, Padova, Padova, Italy
| | - Luca Scorrano
- Department of Biology, University of Padova, Padova, Italy; Venetian Institute of Molecular Medicine, Padova, Padova, Italy
| | - Massimo Zeviani
- MRC Mitochondrial Biology Unit, University of Cambridge, Cambridge, UK
| | - Francesca Vallese
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Mario Zoratti
- Department of Biomedical Sciences, University of Padova, Padova, Italy; CNR Institute of Neuroscience, Padova, Italy
| | - Cristina Paradisi
- Department of Chemical Sciences, University of Padova, Padova, Italy
| | | | - Marisa Brini
- Department of Biology, University of Padova, Padova, Italy
| | - Tito Calì
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Sirio Dupont
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Ildikò Szabò
- Department of Biology, University of Padova, Padova, Italy; CNR Institute of Neuroscience, Padova, Italy.
| | - Luigi Leanza
- Department of Biology, University of Padova, Padova, Italy.
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Dong P, Ji X, Han W, Han H. Oxymatrine attenuates amyloid beta 42 (Aβ1–42)-induced neurotoxicity in primary neuronal cells and memory impairment in rats. Can J Physiol Pharmacol 2019; 97:99-106. [DOI: 10.1139/cjpp-2018-0299] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Amyloid beta 42 (Aβ1–42)-induced oxidative stress causes the death of neuronal cells and is involved in the development of Alzheimer’s disease. Oxymatrine (OMT) inhibits oxidative stress. In this study, we investigated the effect of OMT on Aβ1–42-induced neurotoxicity in vivo and in vitro. In the Morris water maze test, OMT significantly decreased escape latency and increased the number of platform crossings. In vitro, OMT markedly increased cell viability and superoxide dismutase activity. Moreover, OMT decreased lactate dehydrogenase leakage, malondialdehyde content, and reactive oxygen species in a dose-dependent manner. OMT upregulated the ratio of Bcl-2/Bax and downregulated the level of caspase-3. Furthermore, OMT inhibited the activation of MAP kinase (ERK 1/2, JNK) and nuclear factor κB. In summary, OMT may potentially be used in the treatment of Alzheimer’s disease.
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Affiliation(s)
- Peiliang Dong
- Institute of Traditional Chinese Medicine, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Xiaomeng Ji
- School of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Wei Han
- Key Laboratory of Chinese Materia, Ministry of Education of Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Hua Han
- School of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin 150040, China
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Aparicio-Trejo OE, Reyes-Fermín LM, Briones-Herrera A, Tapia E, León-Contreras JC, Hernández-Pando R, Sánchez-Lozada LG, Pedraza-Chaverri J. Protective effects of N-acetyl-cysteine in mitochondria bioenergetics, oxidative stress, dynamics and S-glutathionylation alterations in acute kidney damage induced by folic acid. Free Radic Biol Med 2019; 130:379-396. [PMID: 30439416 DOI: 10.1016/j.freeradbiomed.2018.11.005] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 10/06/2018] [Accepted: 11/06/2018] [Indexed: 12/20/2022]
Abstract
Folic acid (FA)-induced acute kidney injury (AKI) is a widely used model for studies of the renal damage and its progression to chronic state. However, the molecular mechanisms by which FA induces AKI remain poorly understood. Since renal function depends on mitochondrial homeostasis, it has been suggested that mitochondrial alterations contribute to AKI development. Additionally, N-acetyl-cysteine (NAC) can be a protective agent to prevent mitochondrial and renal dysfunction in this model, given its ability to increase mitochondrial glutathione (GSH) and to control the S-glutathionylation levels, a reversible post-translational modification that has emerged as a mechanism able to link mitochondrial energy metabolism and redox homeostasis. However, this hypothesis has not been explored. The present study demonstrates for the first time that, at 24 h, FA induced mitochondrial bioenergetics, redox state, dynamics and mitophagy alterations, which are involved in the mechanisms responsible for the AKI development. On the other hand, NAC preadministration was able to prevent mitochondrial bioenergetics, redox state and dynamics alterations as well as renal damage. The protective effects of NAC on mitochondria and renal function could be related to its observed capacity to preserve the S-glutathionylation process and GSH levels in mitochondria. Taken together, our results support the idea that these mitochondrial processes can be targets for the prevention of the renal damage and its progression in FA-induced AKI model.
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Affiliation(s)
- Omar Emiliano Aparicio-Trejo
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City 04510, Mexico
| | - Laura María Reyes-Fermín
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City 04510, Mexico
| | - Alfredo Briones-Herrera
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City 04510, Mexico
| | - Edilia Tapia
- Department of Nephrology and Laboratory of Renal Pathophysiology, National Institute of Cardiology "Ignacio Chávez", Mexico City 14080, Mexico
| | - Juan Carlos León-Contreras
- Experimental Pathology Section, National Institute of Medical Sciences and Nutrition ''Salvador Zubirán'', 14000 Mexico City, Mexico
| | - Rogelio Hernández-Pando
- Experimental Pathology Section, National Institute of Medical Sciences and Nutrition ''Salvador Zubirán'', 14000 Mexico City, Mexico
| | - Laura Gabriela Sánchez-Lozada
- Department of Nephrology and Laboratory of Renal Pathophysiology, National Institute of Cardiology "Ignacio Chávez", Mexico City 14080, Mexico
| | - José Pedraza-Chaverri
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City 04510, Mexico.
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Targeting Mitochondria to Counteract Age-Related Cellular Dysfunction. Genes (Basel) 2018; 9:genes9030165. [PMID: 29547561 PMCID: PMC5867886 DOI: 10.3390/genes9030165] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 03/02/2018] [Accepted: 03/15/2018] [Indexed: 02/08/2023] Open
Abstract
Senescence is related to the loss of cellular homeostasis and functions, which leads to a progressive decline in physiological ability and to aging-associated diseases. Since mitochondria are essential to energy supply, cell differentiation, cell cycle control, intracellular signaling and Ca2+ sequestration, fine-tuning mitochondrial activity appropriately, is a tightrope walk during aging. For instance, the mitochondrial oxidative phosphorylation (OXPHOS) ensures a supply of adenosine triphosphate (ATP), but is also the main source of potentially harmful levels of reactive oxygen species (ROS). Moreover, mitochondrial function is strongly linked to mitochondrial Ca2+ homeostasis and mitochondrial shape, which undergo various alterations during aging. Since mitochondria play such a critical role in an organism’s process of aging, they also offer promising targets for manipulation of senescent cellular functions. Accordingly, interventions delaying the onset of age-associated disorders involve the manipulation of mitochondrial function, including caloric restriction (CR) or exercise, as well as drugs, such as metformin, aspirin, and polyphenols. In this review, we discuss mitochondria’s role in and impact on cellular aging and their potential to serve as a target for therapeutic interventions against age-related cellular dysfunction.
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Sumi C, Okamoto A, Tanaka H, Nishi K, Kusunoki M, Shoji T, Uba T, Matsuo Y, Adachi T, Hayashi JI, Takenaga K, Hirota K. Propofol induces a metabolic switch to glycolysis and cell death in a mitochondrial electron transport chain-dependent manner. PLoS One 2018; 13:e0192796. [PMID: 29447230 PMCID: PMC5813975 DOI: 10.1371/journal.pone.0192796] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 01/30/2018] [Indexed: 12/14/2022] Open
Abstract
The intravenous anesthetic propofol (2,6-diisopropylphenol) has been used for the induction and maintenance of anesthesia and sedation in critical patient care. However, the rare but severe complication propofol infusion syndrome (PRIS) can occur, especially in patients receiving high doses of propofol for prolonged periods. In vivo and in vitro evidence suggests that the propofol toxicity is related to the impaired mitochondrial function. However, underlying molecular mechanisms remain unknown. Therefore, we investigated effects of propofol on cell metabolism and death using a series of established cell lines of various origins, including neurons, myocytes, and trans-mitochondrial cybrids, with defined mitochondrial DNA deficits. We demonstrated that supraclinical concentrations of propofol in not less than 50 μM disturbed the mitochondrial function and induced a metabolic switch, from oxidative phosphorylation to glycolysis, by targeting mitochondrial complexes I, II and III. This disturbance in mitochondrial electron transport caused the generation of reactive oxygen species, resulting in apoptosis. We also found that a predisposition to mitochondrial dysfunction, caused by a genetic mutation or pharmacological suppression of the electron transport chain by biguanides such as metformin and phenformin, promoted propofol-induced caspase activation and cell death induced by clinical relevant concentrations of propofol in not more than 25 μM. With further experiments with appropriate in vivo model, it is possible that the processes to constitute the molecular basis of PRIS are identified.
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Affiliation(s)
- Chisato Sumi
- Department of Anesthesiology, Kansai Medical University, Hirakata, Japan
- Department of Human Stress Response Science, Institute of Biomedical Science, Kansai Medical University, Hirakata, Japan
| | - Akihisa Okamoto
- Department of Human Stress Response Science, Institute of Biomedical Science, Kansai Medical University, Hirakata, Japan
| | - Hiromasa Tanaka
- Department of Human Stress Response Science, Institute of Biomedical Science, Kansai Medical University, Hirakata, Japan
| | - Kenichiro Nishi
- Department of Human Stress Response Science, Institute of Biomedical Science, Kansai Medical University, Hirakata, Japan
| | - Munenori Kusunoki
- Department of Anesthesiology, Kansai Medical University, Hirakata, Japan
- Department of Human Stress Response Science, Institute of Biomedical Science, Kansai Medical University, Hirakata, Japan
| | - Tomohiro Shoji
- Department of Anesthesiology, Kansai Medical University, Hirakata, Japan
- Department of Human Stress Response Science, Institute of Biomedical Science, Kansai Medical University, Hirakata, Japan
| | - Takeo Uba
- Department of Anesthesiology, Kansai Medical University, Hirakata, Japan
- Department of Human Stress Response Science, Institute of Biomedical Science, Kansai Medical University, Hirakata, Japan
| | - Yoshiyuki Matsuo
- Department of Human Stress Response Science, Institute of Biomedical Science, Kansai Medical University, Hirakata, Japan
| | - Takehiko Adachi
- Department of Anesthesiology, Tazuke Kofukai Medical Institute Kitano Hospital, Osaka, Japan
| | | | - Keizo Takenaga
- Department of Life Science, Shimane University Faculty of Medicine, Izumo, Japan
| | - Kiichi Hirota
- Department of Human Stress Response Science, Institute of Biomedical Science, Kansai Medical University, Hirakata, Japan
- * E-mail:
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Extracellular acidification induces ROS- and mPTP-mediated death in HEK293 cells. Redox Biol 2017; 15:394-404. [PMID: 29331741 PMCID: PMC5767902 DOI: 10.1016/j.redox.2017.12.018] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 12/27/2017] [Accepted: 12/28/2017] [Indexed: 12/20/2022] Open
Abstract
The extracellular pH (pHe) is a key determinant of the cellular (micro)environment and needs to be maintained within strict boundaries to allow normal cell function. Here we used HEK293 cells to study the effects of pHe acidification (24 h), induced by mitochondrial inhibitors (rotenone, antimycin A) and/or extracellular HCl addition. Lowering pHe from 7.2 to 5.8 reduced cell viability by 70% and was paralleled by a decrease in cytosolic pH (pHc), hyperpolarization of the mitochondrial membrane potential (Δψ), increased levels of hydroethidine-oxidizing ROS and stimulation of protein carbonylation. Co-treatment with the antioxidant α-tocopherol, the mitochondrial permeability transition pore (mPTP) desensitizer cyclosporin A and Necrostatin-1, a combined inhibitor of Receptor-interacting serine/threonine-protein kinase 1 (RIPK1) and Indoleamine 2,3-dioxygenase (IDO), prevented acidification-induced cell death. In contrast, the caspase inhibitor zVAD.fmk and the ferroptosis inhibitor Ferrostatin-1 were ineffective. We conclude that extracellular acidification induces necroptotic cell death in HEK293 cells and that the latter involves intracellular acidification, mitochondrial functional impairment, increased ROS levels, mPTP opening and protein carbonylation. These findings suggest that acidosis of the extracellular environment (as observed in mitochondrial disorders, ischemia, acute inflammation and cancer) can induce cell death via a ROS- and mPTP opening-mediated pathogenic mechanism. Extracellular acidification induces mitochondrial dysfunction. Extracellular acidification increases intracellular ROS levels. Extracellular acidification stimulates protein carbonylation. Extracellular acidification induces mPTP opening- and ROS-dependent cell death. Acidosis-induced oxidative stress likely contributes to various pathologies.
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43
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Madreiter-Sokolowski CT, Sokolowski AA, Graier WF. Dosis Facit Sanitatem-Concentration-Dependent Effects of Resveratrol on Mitochondria. Nutrients 2017; 9:nu9101117. [PMID: 29027961 PMCID: PMC5691733 DOI: 10.3390/nu9101117] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 09/20/2017] [Accepted: 10/07/2017] [Indexed: 01/04/2023] Open
Abstract
The naturally occurring polyphenol, resveratrol (RSV), is known for a broad range of actions. These include a positive impact on lifespan and health, but also pro-apoptotic anti-cancer properties. Interestingly, cell culture experiments have revealed a strong impact of RSV on mitochondrial function. The compound was demonstrated to affect mitochondrial respiration, structure and mass of mitochondria as well as mitochondrial membrane potential and, ultimately, mitochondria-associated cell death pathways. Notably, the mitochondrial effects of RSV show a very strict and remarkable concentration dependency: At low concentrations, RSV (<50 μM) fosters cellular antioxidant defense mechanisms, activates AMP-activated protein kinase (AMPK)- and sirtuin 1 (SIRT1)-linked pathways and enhances mitochondrial network formation. These mechanisms crucially contribute to the cytoprotective effects of RSV against toxins and disease-related damage, in vitro and in vivo. However, at higher concentrations, RSV (>50 μM) triggers changes in (sub-)cellular Ca2+ homeostasis, disruption of mitochondrial membrane potential and activation of caspases selectively yielding apoptotic cancer cell death, in vitro and in vivo. In this review, we discuss the promising therapeutic potential of RSV, which is most probably related to the compound’s concentration-dependent manipulation of mitochondrial function and structure.
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Affiliation(s)
- Corina T Madreiter-Sokolowski
- Institute of Molecular Biology and Biochemistry, Medical University of Graz, Neue Stiftingtalstraße 6/6, 8010 Graz, Austria.
| | - Armin A Sokolowski
- Department of Dentistry and Maxillofacial Surgery, Medical University of Graz, Billrothgasse 4, 8010 Graz, Austria.
| | - Wolfgang F Graier
- Institute of Molecular Biology and Biochemistry, Medical University of Graz, Neue Stiftingtalstraße 6/6, 8010 Graz, Austria.
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Rottenberg H, Hoek JB. The path from mitochondrial ROS to aging runs through the mitochondrial permeability transition pore. Aging Cell 2017; 16:943-955. [PMID: 28758328 PMCID: PMC5595682 DOI: 10.1111/acel.12650] [Citation(s) in RCA: 155] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/21/2017] [Indexed: 12/23/2022] Open
Abstract
Excessive production of mitochondrial reactive oxygen species (mROS) is strongly associated with mitochondrial and cellular oxidative damage, aging, and degenerative diseases. However, mROS also induces pathways of protection of mitochondria that slow aging, inhibit cell death, and increase lifespan. Recent studies show that the activation of the mitochondrial permeability transition pore (mPTP), which is triggered by mROS and mitochondrial calcium overloading, is enhanced in aged animals and humans and in aging-related degenerative diseases. mPTP opening initiates further production and release of mROS that damage both mitochondrial and nuclear DNA, proteins, and phospholipids, and also releases matrix NAD that is hydrolyzed in the intermembrane space, thus contributing to the depletion of cellular NAD that accelerates aging. Oxidative damage to calcium transporters leads to calcium overload and more frequent opening of mPTP. Because aging enhances the opening of the mPTP and mPTP opening accelerates aging, we suggest that mPTP opening drives the progression of aging. Activation of the mPTP is regulated, directly and indirectly, not only by the mitochondrial protection pathways that are induced by mROS, but also by pro-apoptotic signals that are induced by DNA damage. We suggest that the integration of these contrasting signals by the mPTP largely determines the rate of cell aging and the initiation of cell death, and thus animal lifespan. The suggestion that the control of mPTP activation is critical for the progression of aging can explain the conflicting and confusing evidence regarding the beneficial and deleterious effects of mROS on health and lifespan.
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Affiliation(s)
- Hagai Rottenberg
- New Hope Biomedical R&D; 23 W. Bridge Street New Hope PA 18038 USA
| | - Jan B. Hoek
- Department of Anatomy, Pathology and Cell Biology; MitoCare Center; Thomas Jefferson University; Philadelphia PA 19107 USA
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Koopman WJ, Beyrath J, Fung CW, Koene S, Rodenburg RJ, Willems PH, Smeitink JA. Mitochondrial disorders in children: toward development of small-molecule treatment strategies. EMBO Mol Med 2017; 8:311-27. [PMID: 26951622 PMCID: PMC4818752 DOI: 10.15252/emmm.201506131] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
This review presents our current understanding of the pathophysiology and potential treatment strategies with respect to mitochondrial disease in children. We focus on pathologies due to mutations in nuclear DNA‐encoded structural and assembly factors of the mitochondrial oxidative phosphorylation (OXPHOS) system, with a particular emphasis on isolated mitochondrial complex I deficiency. Following a brief introduction into mitochondrial disease and OXPHOS function, an overview is provided of the diagnostic process in children with mitochondrial disorders. This includes the impact of whole‐exome sequencing and relevance of cellular complementation studies. Next, we briefly present how OXPHOS mutations can affect cellular parameters, primarily based on studies in patient‐derived fibroblasts, and how this information can be used for the rational design of small‐molecule treatment strategies. Finally, we discuss clinical trial design and provide an overview of small molecules that are currently being developed for treatment of mitochondrial disease.
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Affiliation(s)
- Werner Jh Koopman
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands Centre for Systems Biology and Bioenergetics, Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - Cheuk-Wing Fung
- Department of Pediatrics, Radboud Center for Mitochondrial Medicine, Radboud University Medical Center, Nijmegen, The Netherlands Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, Queen Mary Hospital, University of Hong Kong, Hong Kong
| | - Saskia Koene
- Department of Pediatrics, Radboud Center for Mitochondrial Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Richard J Rodenburg
- Department of Pediatrics, Radboud Center for Mitochondrial Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Peter Hgm Willems
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands Centre for Systems Biology and Bioenergetics, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Jan Am Smeitink
- Centre for Systems Biology and Bioenergetics, Radboud University Medical Center, Nijmegen, The Netherlands Khondrion BV, Nijmegen, The Netherlands Department of Pediatrics, Radboud Center for Mitochondrial Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
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Sun C, Jin W, Shi H. Oligomeric proanthocyanidins protects A549 cells against H2O2-induced oxidative stress via the Nrf2-ARE pathway. Int J Mol Med 2017; 39:1548-1554. [DOI: 10.3892/ijmm.2017.2971] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2016] [Accepted: 04/07/2017] [Indexed: 11/05/2022] Open
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Aparicio-Trejo OE, Tapia E, Molina-Jijón E, Medina-Campos ON, Macías-Ruvalcaba NA, León-Contreras JC, Hernández-Pando R, García-Arroyo FE, Cristóbal M, Sánchez-Lozada LG, Pedraza-Chaverri J. Curcumin prevents mitochondrial dynamics disturbances in early 5/6 nephrectomy: Relation to oxidative stress and mitochondrial bioenergetics. Biofactors 2017; 43:293-310. [PMID: 27801955 DOI: 10.1002/biof.1338] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 09/13/2016] [Accepted: 10/04/2016] [Indexed: 12/20/2022]
Abstract
Five-sixths nephrectomy (5/6NX) is a widely used model to study the mechanisms leading to renal damage in chronic kidney disease (CKD). However, early alterations on renal function, mitochondrial dynamics, and oxidative stress have not been explored yet. Curcumin is an antioxidant that has shown nephroprotection in 5/6NX-induced renal damage. The aim of this study was to explore the effect of curcumin on early mitochondrial alterations induced by 5/6NX in rats. In isolated mitochondria, 5/6NX-induced hydrogen peroxide production was associated with decreased activity of complexes I and V, decreased activity of antioxidant enzymes, alterations in oxygen consumption and increased MDA-protein adducts. In addition, it was found that 5/6NX shifted mitochondrial dynamics to fusion, which was evidenced by increased optic atrophy 1 and mitofusin 1 (Mfn1) and decreased fission 1 and dynamin-related protein 1 expressions. These data were confirmed by morphological analysis and immunoelectron microscopy of Mfn-1. All the above-described mechanisms were prevented by curcumin. Also, it was found that curcumin prevented renal dysfunction by improving renal blood flow and the total antioxidant capacity induced by 5/6NX. Moreover, in glomeruli and proximal tubules 5/6NX-induced superoxide anion production by uncoupled nitric oxide synthase (NOS) and nicotinamide adenine dinucleotide phosphate oxidase (NOX) dependent way, this latter was associated with increased phosphorylation of serine 304 of p47phox subunit of NOX. In conclusion, this study shows that curcumin pretreatment decreases early 5/6NX-induced altered mitochondrial dynamics, bioenergetics, and oxidative stress, which may be associated with the preservation of renal function. © 2016 BioFactors, 43(2):293-310, 2017.
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Affiliation(s)
- Omar Emiliano Aparicio-Trejo
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City, 04510, Mexico
| | - Edilia Tapia
- Department of Nephrology and Laboratory of Renal Pathophysiology, National Institute of Cardiology "Ignacio Chávez", Mexico City, 14080, Mexico
| | - Eduardo Molina-Jijón
- Departamento de Biociencias e Ingeniería, Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo del Instituto Politécnico Nacional (CIIEMAD-IPN), Ciudad de México, 07340, México
| | - Omar Noel Medina-Campos
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City, 04510, Mexico
| | - Norma Angélica Macías-Ruvalcaba
- Department of Physical Chemistry, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City, 04510, Mexico
| | - Juan Carlos León-Contreras
- Experimental Pathology Section, National Institute of Medical Sciences and Nutrition "Salvador Zubirán", Mexico City, 14000, Mexico
| | - Rogelio Hernández-Pando
- Experimental Pathology Section, National Institute of Medical Sciences and Nutrition "Salvador Zubirán", Mexico City, 14000, Mexico
| | - Fernando E García-Arroyo
- Department of Nephrology and Laboratory of Renal Pathophysiology, National Institute of Cardiology "Ignacio Chávez", Mexico City, 14080, Mexico
| | - Magdalena Cristóbal
- Department of Nephrology and Laboratory of Renal Pathophysiology, National Institute of Cardiology "Ignacio Chávez", Mexico City, 14080, Mexico
| | - Laura Gabriela Sánchez-Lozada
- Department of Nephrology and Laboratory of Renal Pathophysiology, National Institute of Cardiology "Ignacio Chávez", Mexico City, 14080, Mexico
| | - José Pedraza-Chaverri
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City, 04510, Mexico
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Huang BK, Stein KT, Sikes HD. Modulating and Measuring Intracellular H 2O 2 Using Genetically Encoded Tools to Study Its Toxicity to Human Cells. ACS Synth Biol 2016; 5:1389-1395. [PMID: 27428287 DOI: 10.1021/acssynbio.6b00120] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Reactive oxygen species (ROS) such as H2O2 play paradoxical roles in mammalian physiology. It is hypothesized that low, baseline levels of H2O2 are necessary for growth and differentiation, while increased intracellular H2O2 concentrations are associated with pathological phenotypes and genetic instability, eventually reaching a toxic threshold that causes cell death. However, the quantities of intracellular H2O2 that lead to these different responses remain an unanswered question in the field. To address this question, we used genetically encoded constructs that both generate and quantify H2O2 in a dose-response study of H2O2-mediated toxicity. We found that, rather than a simple concentration-response relationship, a combination of intracellular concentration and the cumulative metric of H2O2 concentration multiplied by time (i.e., the area under the curve) determined the occurrence and level of cell death. Establishing the quantitative relationship between H2O2 and cell toxicity promotes a deeper understanding of the intracellular effects of H2O2 specifically as an individual reactive oxygen species, and it contributes to an understanding of its role in various redox-related diseases.
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Affiliation(s)
- Beijing K. Huang
- Department
of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Kassi T. Stein
- Department
of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Hadley D. Sikes
- Department
of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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Liemburg-Apers DC, Wagenaars JAL, Smeitink JAM, Willems PHGM, Koopman WJH. Acute stimulation of glucose influx upon mitoenergetic dysfunction requires LKB1, AMPK, Sirt2 and mTOR-RAPTOR. J Cell Sci 2016; 129:4411-4423. [PMID: 27793977 DOI: 10.1242/jcs.194480] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 10/24/2016] [Indexed: 12/20/2022] Open
Abstract
Mitochondria play a central role in cellular energy production, and their dysfunction can trigger a compensatory increase in glycolytic flux to sustain cellular ATP levels. Here, we studied the mechanism of this homeostatic phenomenon in C2C12 myoblasts. Acute (30 min) mitoenergetic dysfunction induced by the mitochondrial inhibitors piericidin A and antimycin A stimulated Glut1-mediated glucose uptake without altering Glut1 (also known as SLC2A1) mRNA or plasma membrane levels. The serine/threonine liver kinase B1 (LKB1; also known as STK11) and AMP-activated protein kinase (AMPK) played a central role in this stimulation. In contrast, ataxia-telangiectasia mutated (ATM; a potential AMPK kinase) and hydroethidium (HEt)-oxidizing reactive oxygen species (ROS; increased in piericidin-A- and antimycin-A-treated cells) appeared not to be involved in the stimulation of glucose uptake. Treatment with mitochondrial inhibitors increased NAD+ and NADH levels (associated with a lower NAD+:NADH ratio) but did not affect the level of Glut1 acetylation. Stimulation of glucose uptake was greatly reduced by chemical inhibition of Sirt2 or mTOR-RAPTOR. We propose that mitochondrial dysfunction triggers LKB1-mediated AMPK activation, which stimulates Sirt2 phosphorylation, leading to activation of mTOR-RAPTOR and Glut1-mediated glucose uptake.
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Affiliation(s)
- Dania C Liemburg-Apers
- Department of Biochemistry (286), Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500HB, Nijmegen, The Netherlands.,Centre for Systems Biology and Bioenergetics, Radboud University and Radboud University Medical Center, 6500HB, Nijmegen, The Netherlands.,Department of Pediatrics, Radboud Center for Mitochondrial Medicine, Radboud University Medical Center, 6525GA, Nijmegen, The Netherlands
| | - Jori A L Wagenaars
- Department of Biochemistry (286), Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500HB, Nijmegen, The Netherlands.,Centre for Systems Biology and Bioenergetics, Radboud University and Radboud University Medical Center, 6500HB, Nijmegen, The Netherlands.,Department of Pediatrics, Radboud Center for Mitochondrial Medicine, Radboud University Medical Center, 6525GA, Nijmegen, The Netherlands
| | - Jan A M Smeitink
- Centre for Systems Biology and Bioenergetics, Radboud University and Radboud University Medical Center, 6500HB, Nijmegen, The Netherlands.,Department of Pediatrics, Radboud Center for Mitochondrial Medicine, Radboud University Medical Center, 6525GA, Nijmegen, The Netherlands
| | - Peter H G M Willems
- Department of Biochemistry (286), Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500HB, Nijmegen, The Netherlands.,Centre for Systems Biology and Bioenergetics, Radboud University and Radboud University Medical Center, 6500HB, Nijmegen, The Netherlands.,Department of Pediatrics, Radboud Center for Mitochondrial Medicine, Radboud University Medical Center, 6525GA, Nijmegen, The Netherlands
| | - Werner J H Koopman
- Department of Biochemistry (286), Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500HB, Nijmegen, The Netherlands .,Centre for Systems Biology and Bioenergetics, Radboud University and Radboud University Medical Center, 6500HB, Nijmegen, The Netherlands.,Department of Pediatrics, Radboud Center for Mitochondrial Medicine, Radboud University Medical Center, 6525GA, Nijmegen, The Netherlands
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Okamoto A, Tanaka M, Sumi C, Oku K, Kusunoki M, Nishi K, Matsuo Y, Takenaga K, Shingu K, Hirota K. The antioxidant N-acetyl cysteine suppresses lidocaine-induced intracellular reactive oxygen species production and cell death in neuronal SH-SY5Y cells. BMC Anesthesiol 2016; 16:104. [PMID: 27776485 PMCID: PMC5078905 DOI: 10.1186/s12871-016-0273-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 10/14/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The local anesthetic lidocaine can affect intra- and extra-cellular signaling pathways in both neuronal and non-neuronal cells, resulting in long-term modulation of biological functions, including cell growth and death. Indeed, lidocaine was shown to induce necrosis and apoptosis in vitro. While several studies have suggested that lidocaine-induced apoptosis is mitochondrial pathway-dependent, it remains unclear whether reactive oxygen species (ROS) are involved in this process and whether the observed cell death can be prevented by antioxidant treatment. METHODS The effects of lidocaine and antioxidants on cell viability and death were evaluated using SH-SY5Y cells, HeLa cells, and HeLa cell derivatives. Cell viability was examined via MTS/PES ([3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium, inner salt]/phenazine ethosulfate) assay. Meanwhile, cell apoptosis and necrosis were evaluated using a cell death detection assay with Annexin V-FITC and PI staining, as well as by assaying for caspase-3/7 and caspase-9 activity, and by measuring the release of lactate dehydrogenase, respectively. Mitochondrial transmembrane potential (ΔΨm) was assessed using the fluorescent probe tetramethylrhodamine ethyl ester. RESULTS Lidocaine treatment resulted in suppression of the mitochondrial electron transport chain and subsequent attenuation of mitochondrial membrane potential, as well as enhanced ROS production, activation of caspase-3/7 and caspase-9, and induction of apoptosis and necrosis in SH-SY5Y cells in a dose- and time-dependent manner. Likewise, the anesthetics mepivacaine and bupivacaine also induced apoptosis in SH-SY5Y cells. Notably, the antioxidants N-acetyl cysteine (NAC) and Trolox successfully scavenged the mitochondria-derived ROS and suppressed local lidocaine-induced cell death. CONCLUSIONS Our findings demonstrate that the local anesthetics lidocaine, mepivacaine, and bupivacaine inhibited the activity of mitochondria and induced apoptosis and necrosis in a dose-dependent manner. Furthermore, they demonstrate that treatment with the antioxidants NAC, Trolox, and GGA resulted in preservation of mitochondrial voltage and inhibition of apoptosis via suppression of caspase activation.
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Affiliation(s)
- Akihisa Okamoto
- Department of Anesthesiology, Kansai Medical University, Hirakata, Japan
| | - Masahiro Tanaka
- Department of Anesthesiology, Kansai Medical University, Hirakata, Japan
| | - Chisato Sumi
- Department of Anesthesiology, Kansai Medical University, Hirakata, Japan
| | - Kanako Oku
- Department of Anesthesiology, Kansai Medical University, Hirakata, Japan
| | - Munenori Kusunoki
- Department of Anesthesiology, Kansai Medical University, Hirakata, Japan
| | - Kenichiro Nishi
- Department of Anesthesiology, Kansai Medical University, Hirakata, Japan
| | - Yoshiyuki Matsuo
- Department of Anesthesiology, Kansai Medical University, Hirakata, Japan
| | - Keizo Takenaga
- Department of Life Science, Shimane University School of Medicine, Izumo, Japan
| | - Koh Shingu
- Department of Anesthesiology, Kansai Medical University, Hirakata, Japan
| | - Kiichi Hirota
- Department of Anesthesiology, Kansai Medical University, Hirakata, Japan.
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