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Piacenza L, Zeida A, Trujillo M, Radi R. The superoxide radical switch in the biology of nitric oxide and peroxynitrite. Physiol Rev 2022; 102:1881-1906. [PMID: 35605280 DOI: 10.1152/physrev.00005.2022] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Lucìa Piacenza
- Departamento de Bioquímica, Facultad de Medicina; Centro de Investigaciones Biomédicas (CEINBIO), Universidad de la República, Uruguay
| | - Ari Zeida
- Departamento de Bioquímica, Facultad de Medicina; Centro de Investigaciones Biomédicas (CEINBIO), Universidad de la República, Montevideo, Uruguay
| | - Madia Trujillo
- Departamento de Bioquímica, Facultad de Medicina; Centro de Investigaciones Biomédicas (CEINBIO), Universidad de la República, Montevideo, Uruguay
| | - Rafael Radi
- Departamento de Bioquímica, Facultad de Medicina; Centro de Investigaciones Biomédicas (CEINBIO), Universidad de la República, Montevideo, Uruguay
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Broome SC, Pham T, Braakhuis AJ, Narang R, Wang HW, Hickey AJR, Mitchell CJ, Merry TL. MitoQ supplementation augments acute exercise-induced increases in muscle PGC1α mRNA and improves training-induced increases in peak power independent of mitochondrial content and function in untrained middle-aged men. Redox Biol 2022; 53:102341. [PMID: 35623315 PMCID: PMC9142706 DOI: 10.1016/j.redox.2022.102341] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/10/2022] [Accepted: 05/14/2022] [Indexed: 10/27/2022] Open
Abstract
The role of mitochondrial ROS in signalling muscle adaptations to exercise training has not been explored in detail. We investigated the effect of supplementation with the mitochondria-targeted antioxidant MitoQ on a) the skeletal muscle mitochondrial and antioxidant gene transcriptional response to acute high-intensity exercise and b) skeletal muscle mitochondrial content and function following exercise training. In a randomised, double-blind, placebo-controlled, parallel design study, 23 untrained men (age: 44 ± 7 years, VO2peak: 39.6 ± 7.9 ml/kg/min) were randomised to receive either MitoQ (20 mg/d) or a placebo for 10 days before completing a bout of high-intensity interval exercise (cycle ergometer, 10 × 60 s at VO2peak workload with 75 s rest). Blood samples and vastus lateralis muscle biopsies were collected before exercise and immediately and 3 h after exercise. Participants then completed high-intensity interval training (HIIT; 3 sessions per week for 3 weeks) and another blood sample and muscle biopsy were collected. There was no effect of acute exercise or MitoQ on systemic (plasma protein carbonyls and reduced glutathione) or skeletal muscle (mtDNA damage and 4-HNE) oxidative stress biomarkers. Acute exercise-induced increases in skeletal muscle peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC1-α) mRNA expression were augmented in the MitoQ group. Despite this, training-induced increases in skeletal muscle mitochondrial content were similar between groups. HIIT-induced increases in VO2peak and 20 km time trial performance were also similar between groups while training-induced increases in peak power achieved during the VO2peak test were augmented in the MitoQ group. These data suggest that training-induced increases in peak power are enhanced following MitoQ supplementation, which may be related to the augmentation of skeletal muscle PGC1α expression following acute exercise. However, these effects do not appear to be related to an effect of MitoQ supplementation on exercise-induced oxidative stress or training-induced mitochondrial biogenesis in skeletal muscle.
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Affiliation(s)
- S C Broome
- Discipline of Nutrition, School of Medical Sciences, University of Auckland, Auckland, New Zealand.
| | - T Pham
- Discipline of Nutrition, School of Medical Sciences, University of Auckland, Auckland, New Zealand; Auckland Bioengineering Institute, Faculty of Science, The University of Auckland, Auckland, New Zealand
| | - A J Braakhuis
- Discipline of Nutrition, School of Medical Sciences, University of Auckland, Auckland, New Zealand
| | - R Narang
- School of Medicine, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
| | - H W Wang
- School of Medicine, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand; School of Biological Sciences, Faculty of Science, The University of Auckland, Auckland, New Zealand
| | - A J R Hickey
- School of Biological Sciences, Faculty of Science, The University of Auckland, Auckland, New Zealand
| | - C J Mitchell
- School of Kinesiology, University of British Columbia, Vancouver, Canada
| | - T L Merry
- Discipline of Nutrition, School of Medical Sciences, University of Auckland, Auckland, New Zealand; Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland, Auckland, New Zealand
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103
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Mechanisms of Mitochondrial Malfunction in Alzheimer’s Disease: New Therapeutic Hope. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:4759963. [PMID: 35607703 PMCID: PMC9124149 DOI: 10.1155/2022/4759963] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 04/08/2022] [Accepted: 04/16/2022] [Indexed: 02/05/2023]
Abstract
Mitochondria play a critical role in neuron viability or death as it regulates energy metabolism and cell death pathways. They are essential for cellular energy metabolism, reactive oxygen species production, apoptosis, Ca++ homeostasis, aging, and regeneration. Mitophagy and mitochondrial dynamics are thus essential processes in the quality control of mitochondria. Improvements in several fundamental features of mitochondrial biology in susceptible neurons of AD brains and the putative underlying mechanisms of such changes have made significant progress. AD's etiology has been reported by mitochondrial malfunction and oxidative damage. According to several recent articles, a continual fusion and fission balance of mitochondria is vital in their normal function maintenance. As a result, the shape and function of mitochondria are inextricably linked. This study examines evidence suggesting that mitochondrial dysfunction plays a significant early impact on AD pathology. Furthermore, the dynamics and roles of mitochondria are discussed with the link between mitochondrial malfunction and autophagy in AD has also been explored. In addition, recent research on mitochondrial dynamics and mitophagy in AD is also discussed in this review. It also goes into how these flaws affect mitochondrial quality control. Furthermore, advanced therapy techniques and lifestyle adjustments that lead to improved management of the dynamics have been demonstrated, hence improving the conditions that contribute to mitochondrial dysfunction in AD.
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Mohan Viswanathan T, Krishnakumar V, Senthilkumar D, Chitradevi K, Vijayabhaskar R, Rajesh Kannan V, Senthil Kumar N, Sundar K, Kunjiappan S, Babkiewicz E, Maszczyk P, Kathiresan T. Combinatorial Delivery of Gallium (III) Nitrate and Curcumin Complex-Loaded Hollow Mesoporous Silica Nanoparticles for Breast Cancer Treatment. NANOMATERIALS 2022; 12:nano12091472. [PMID: 35564180 PMCID: PMC9105406 DOI: 10.3390/nano12091472] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 04/13/2022] [Accepted: 04/20/2022] [Indexed: 12/15/2022]
Abstract
The main aims in the development of a novel drug delivery vehicle is to efficiently carry therapeutic drugs in the body's circulatory system and successfully deliver them to the targeted site as needed to safely achieve the desired therapeutic effect. In the present study, a passive targeted functionalised nanocarrier was fabricated or wrapped the hollow mesoporous silica nanoparticles with 3-aminopropyl triethoxysilane (APTES) to prepare APTES-coated hollow mesoporous silica nanoparticles (HMSNAP). A nitrogen sorption analysis confirmed that the shape of hysteresis loops is altered, and subsequently the pore volume and pore diameters of GaC-HMSNAP was reduced by around 56 and 37%, respectively, when compared with HMSNAP. The physico-chemical characterisation studies of fabricated HMSNAP, Ga-HMSNAP and GaC-HMSNAP have confirmed their stability. The drug release capacity of the fabricated Ga-HMSNAP and GaC-HMSNAP for delivery of gallium and curcumin was evaluated in the phosphate buffered saline (pH 3.0, 6.0 and 7.4). In an in silico molecular docking study of the gallium-curcumin complex in PDI, calnexin, HSP60, PDK, caspase 9, Akt1 and PTEN were found to be strong binding. In vitro antitumor activity of both Ga-HMSNAP and GaC-HMSNAP treated MCF-7 cells was investigated in a dose and time-dependent manner. The IC50 values of GaC-HMSNAP (25 µM) were significantly reduced when compared with free gallium concentration (40 µM). The mechanism of gallium-mediated apoptosis was analyzed through western blotting and GaC-HMSNAP has increased caspases 9, 6, cleaved caspase 6, PARP, and GSK 3β(S9) in MCF-7 cells. Similarly, GaC-HMSNAP is reduced mitochondrial proteins such as prohibitin1, HSP60, and SOD1. The phosphorylation of oncogenic proteins such as Akt (S473), c-Raf (S249) PDK1 (S241) and induced cell death in MCF-7 cells. Furthermore, the findings revealed that Ga-HMSNAP and GaC-HMSNAP provide a controlled release of loaded gallium, curcumin and their complex. Altogether, our results depicted that GaC-HMNSAP induced cell death through the mitochondrial intrinsic cell death pathway, which could lead to novel therapeutic strategies for breast adenocarcinoma therapy.
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Affiliation(s)
- Thimma Mohan Viswanathan
- Department of Biotechnology, Kalasalingam Academy of Research and Education, Krishnankoil 626126, India; (T.M.V.); (D.S.); (K.C.); (K.S.); (S.K.)
| | - Vaithilingam Krishnakumar
- Department of Microbiology, Bharathidasan University, Tiruchirappalli 620024, India; (V.K.); (V.R.K.)
| | - Dharmaraj Senthilkumar
- Department of Biotechnology, Kalasalingam Academy of Research and Education, Krishnankoil 626126, India; (T.M.V.); (D.S.); (K.C.); (K.S.); (S.K.)
| | - Kaniraja Chitradevi
- Department of Biotechnology, Kalasalingam Academy of Research and Education, Krishnankoil 626126, India; (T.M.V.); (D.S.); (K.C.); (K.S.); (S.K.)
| | | | - Velu Rajesh Kannan
- Department of Microbiology, Bharathidasan University, Tiruchirappalli 620024, India; (V.K.); (V.R.K.)
| | | | - Krishnan Sundar
- Department of Biotechnology, Kalasalingam Academy of Research and Education, Krishnankoil 626126, India; (T.M.V.); (D.S.); (K.C.); (K.S.); (S.K.)
| | - Selvaraj Kunjiappan
- Department of Biotechnology, Kalasalingam Academy of Research and Education, Krishnankoil 626126, India; (T.M.V.); (D.S.); (K.C.); (K.S.); (S.K.)
| | - Ewa Babkiewicz
- Department of Hydrobiology, Faculty of Biology, University of Warsaw, 02-089 Warsaw, Poland; (E.B.); (P.M.)
| | - Piotr Maszczyk
- Department of Hydrobiology, Faculty of Biology, University of Warsaw, 02-089 Warsaw, Poland; (E.B.); (P.M.)
| | - Thandavarayan Kathiresan
- Department of Biotechnology, Kalasalingam Academy of Research and Education, Krishnankoil 626126, India; (T.M.V.); (D.S.); (K.C.); (K.S.); (S.K.)
- Correspondence: ; Tel.: +91-4563-289042; Fax: +91-4563-289322
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105
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Arjun V, Kumar P, Dutt R, Kumar A, Bala R, Verma N, Jerome A, Virmani M, Patil CS, Bhardwaj S, Kumar D, Yadav PS. Effect of mitochondria-targeted antioxidant on the regulation of the mitochondrial function of sperm during cryopreservation. Andrologia 2022; 54:e14431. [PMID: 35451101 DOI: 10.1111/and.14431] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 03/08/2022] [Accepted: 03/23/2022] [Indexed: 01/18/2023] Open
Abstract
Sperm mitochondrion is one of the major susceptible organelles that get damaged during cryopreservation. The study aimed to minimize mitochondrial dysfunction and oxidative stress during sperm cryopreservation using mitochondria-specific antioxidants. For this, semen was collected from five buffalo bulls (3 ejaculates/bull). The ejaculates were diluted in an low-density lipoprotein-based extender and divided into four equal aliquots. Mitochondria-targeted antioxidant (MitoQ) was added at a final concentration of 0 (control), 0.02, 0.2 and 2 μM separately in each aliquotes and cryopreserved. The addition of MitoQ at a concentration of 0.02 μM improved post-thaw sperm motility, plasma membrane integrity and able to sustain sperm motility for a longer time. To investigate MitoQ's effects on mitochondrial function, we measured mitochondrial membrane potential (MMP) using JC-1 dye, superoxide production using Mitosox assay, and lipid peroxidation by TBARS assay. The supplementation of 0.02 μM MitoQ in the extender prevented the significant reduction of MMP and reduced superoxide production resulting in lower lipid peroxidation of sperm plasma membrane after cryopreservation. Further, we found that a higher concentration of MitoQ decreases MMP and increases mitochondrial superoxide production. In conclusion, MitoQ @ 0.02 μM can alleviate oxidative stress by regulating mitochondrial functionality in spermatozoa during cryopreservation.
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Affiliation(s)
- Venkateshappa Arjun
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, Haryana, India.,Department of Veterinary Gynaecology and Obstetrics, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana, India
| | - Pradeep Kumar
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, Haryana, India
| | - Ravi Dutt
- Department of Veterinary Gynaecology and Obstetrics, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana, India
| | - Amit Kumar
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, Haryana, India.,Department of Veterinary Gynaecology and Obstetrics, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana, India
| | - Renu Bala
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, Haryana, India
| | - Nisha Verma
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, Haryana, India
| | - Andonissamy Jerome
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, Haryana, India
| | - Meenakshi Virmani
- Department of Animal Physiology and Biochemistry, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana, India
| | - Chandra Shekhar Patil
- Department of Animal Genetics and Breeding, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana, India
| | - Shivani Bhardwaj
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, Haryana, India
| | - Dharmendra Kumar
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, Haryana, India
| | - Prem Singh Yadav
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, Haryana, India
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106
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Oxidative Stress and Ischemia/Reperfusion Injury in Kidney Transplantation: Focus on Ferroptosis, Mitophagy and New Antioxidants. Antioxidants (Basel) 2022; 11:antiox11040769. [PMID: 35453454 PMCID: PMC9024672 DOI: 10.3390/antiox11040769] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/06/2022] [Accepted: 04/08/2022] [Indexed: 12/11/2022] Open
Abstract
Although there has been technical and pharmacological progress in kidney transplant medicine, some patients may experience acute post-transplant complications. Among the mechanisms involved in these conditions, ischemia/reperfusion (I/R) injury may have a primary pathophysiological role since it is one of the leading causes of delayed graft function (DGF), a slow recovery of the renal function with the need for dialysis (generally during the first week after transplantation). DGF has a significant social and economic impact as it is associated with prolonged hospitalization and the development of severe complications (including acute rejection). During I/R injury, oxidative stress plays a major role activating several pathways including ferroptosis, an iron-driven cell death characterized by iron accumulation and excessive lipid peroxidation, and mitophagy, a selective degradation of damaged mitochondria by autophagy. Ferroptosis may contribute to the renal damage, while mitophagy can have a protective role by reducing the release of reactive oxygen species from dysfunctional mitochondria. Deep comprehension of both pathways may offer the possibility of identifying new early diagnostic noninvasive biomarkers of DGF and introducing new clinically employable pharmacological strategies. In this review we summarize all relevant knowledge in this field and discuss current antioxidant pharmacological strategies that could represent, in the next future, potential treatments for I/R injury.
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107
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Abstract
PURPOSE OF REVIEW We review therapeutic approaches aimed at restoring function of the failing heart by targeting mitochondrial reactive oxygen species (ROS), ion handling, and substrate utilization for adenosine triphosphate (ATP) production. RECENT FINDINGS Mitochondria-targeted therapies have been tested in animal models of and humans with heart failure (HF). Cardiac benefits of sodium/glucose cotransporter 2 inhibitors might be partly explained by their effects on ion handling and metabolism of cardiac myocytes. The large energy requirements of the heart are met by oxidative phosphorylation in mitochondria, which is tightly regulated by the turnover of ATP that fuels cardiac contraction and relaxation. In heart failure (HF), this mechano-energetic coupling is disrupted, leading to bioenergetic mismatch and production of ROS that drive the progression of cardiac dysfunction. Furthermore, HF is accompanied by changes in substrate uptake and oxidation that are considered detrimental for mitochondrial oxidative metabolism and negatively affect cardiac efficiency. Mitochondria lie at the crossroads of metabolic and energetic dysfunction in HF and represent ideal therapeutic targets.
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Affiliation(s)
- Julia Schwemmlein
- Department of Translational Research, Comprehensive Heart Failure Center, University Clinic Würzburg, Würzburg, Germany
| | - Christoph Maack
- Department of Translational Research, Comprehensive Heart Failure Center, University Clinic Würzburg, Würzburg, Germany
| | - Edoardo Bertero
- Department of Translational Research, Comprehensive Heart Failure Center, University Clinic Würzburg, Würzburg, Germany.
- Department of Internal Medicine and Specialties (Di.M.I.), University of Genoa, Genoa, Italy.
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108
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Shang Y, Xue W, Kong J, Chen Y, Qiu X, An X, Li Y, Wang H, An J. Ultrafine black carbon caused mitochondrial oxidative stress, mitochondrial dysfunction and mitophagy in SH-SY5Y cells. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 813:151899. [PMID: 34838543 DOI: 10.1016/j.scitotenv.2021.151899] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 09/02/2021] [Accepted: 11/19/2021] [Indexed: 06/13/2023]
Abstract
Exposure to ambient ultrafine black carbon (uBC, with aerodynamic diameter less than 100 nm) is associated with many neurodegenerative diseases. Oxidative stress is the predominantly reported neurotoxic effects caused by uBC exposure. Mitochondrion is responsible for production of majority of ROS in cells and mitochondrial dysfunction is closely related to adverse nervous outcomes. Mitophagy is an important cellular process to eliminate dysfunctional or damaged mitochondria. However, the mechanisms that modulate mitophagy and mitochondrial dysfunction initiated by uBC remain to be elucidated. The purpose of this study was to investigate how mitochondrial oxidative stress regulated mitochondrial dysfunction and mitophagy in human neuroblastoma cell line (SH-SY5Y) after uBC treatment. RNA interference was further applied to explore the roles of mitophagy in mitochondrial dysfunction. We found uBC triggered cell apoptosis via ROS-mitochondrial apoptotic pathway. The uBC also caused serious mitochondrial damage and respiratory dysfunction, indicated by the abnormalities in mitochondrial division and fusion related proteins, decreased mitochondria number and ATP level. Increased PTEN induced putative kinase 1 (PINK1) and Parkin protein levels and the autolysosome numbers suggested uBC could promote Pink1/Parkin-dependent mitophagy process in SH-SY5Y cells. Mitophagy inhibition could reserve mitochondria number and ATP activity, but not fusion and division related protein levels in SH-SY5Y cells exposed to uBC. Administration of a mitochondria-targeted antioxidant (mitoquinone) significantly eliminated uBC caused apoptosis, mitochondrial dysfunction and mitophagy. Our data suggested mitochondrial oxidative stress regulated uBC induced mitochondrial dysfunction and PINK1/Parkin-dependent mitophagy. PINK1/Parkin-dependent mitophagy probably participated in regulating uBC caused mitochondrial dysfunction but not by controlling mitochondrial fusion and division related proteins. Our results may provide some new insights and evidences to understand the mechanisms of neurotoxicity induced by uBC.
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Affiliation(s)
- Yu Shang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China; State Environmental Protection Key Laboratory of Formation and Prevention of Urban Air Pollution Complex, Shanghai Academy of Environment Sciences, Shanghai 200233, China
| | - Wanlei Xue
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Jiexing Kong
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Yingjun Chen
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
| | - Xinghua Qiu
- BIC-ESAT and SKL-ESPC, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Xingqin An
- State Key Laboratory of Severe Weather & Key Laboratory of Atmospheric Chemistry of CMA, Chinese Academy of Meteorological Sciences, Beijing 100081, China
| | - Yi Li
- State Key Laboratory of Severe Weather & Key Laboratory of Atmospheric Chemistry of CMA, Chinese Academy of Meteorological Sciences, Beijing 100081, China
| | - Hongli Wang
- State Environmental Protection Key Laboratory of Formation and Prevention of Urban Air Pollution Complex, Shanghai Academy of Environment Sciences, Shanghai 200233, China
| | - Jing An
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China.
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109
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Kievit B, Johnstone AD, Gibon J, Barker PA. Mitochondrial Reactive Oxygen Species Mediate Activation of TRPV1 and Calcium Entry Following Peripheral Sensory Axotomy. Front Mol Neurosci 2022; 15:852181. [PMID: 35370552 PMCID: PMC8973397 DOI: 10.3389/fnmol.2022.852181] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 02/17/2022] [Indexed: 12/03/2022] Open
Abstract
Axons that are physically separated from their soma activate a series of signaling events that results in axonal self-destruction. A critical element of this signaling pathway is an intra-axonal calcium rise that occurs just prior to axonal fragmentation. Previous studies have shown that preventing this calcium rise delays the onset of axon fragmentation, yet the ion channels responsible for the influx, and the mechanisms by which they are activated, are largely unknown. Axonal injury can be modeled in vitro by transecting murine dorsal root ganglia (DRG) sensory axons. We coupled transections with intra-axonal calcium imaging and found that Ca2+ influx is sharply reduced in axons lacking trpv1 (for transient receptor potential cation channel vanilloid 1) and in axons treated with capsazepine (CPZ), a TRPV1 antagonist. Sensory neurons from trpv1–/– mice were partially rescued from degeneration after transection, indicating that TRPV1 normally plays a pro-degenerative role after axonal injury. TRPV1 activity can be regulated by direct post-translational modification induced by reactive oxygen species (ROS). Here, we tested the hypothesis that mitochondrial ROS production induced by axotomy is required for TRPV1 activity and subsequent axonal degeneration. We found that reducing mitochondrial depolarization with NAD+ supplementation or scavenging ROS using NAC or MitoQ sharply attenuates TRPV1-dependent calcium influx induced by axotomy. This study shows that ROS-dependent TRPV1 activation is required for Ca2+ entry after axotomy.
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Affiliation(s)
- Bradley Kievit
- Department of Biology, University of British Columbia Okanagan, Kelowna, BC, Canada
| | - Aaron D. Johnstone
- Department of Neurology and Neurosurgery, Montreal Neurological Institute, McGill University, Montreal, QC, Canada
| | - Julien Gibon
- Department of Biology, University of British Columbia Okanagan, Kelowna, BC, Canada
- *Correspondence: Julien Gibon,
| | - Philip A. Barker
- Department of Biology, University of British Columbia Okanagan, Kelowna, BC, Canada
- Philip A. Barker,
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110
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Capeloa T, Krzystyniak J, d’Hose D, Canas Rodriguez A, Payen VL, Zampieri LX, Van de Velde JA, Benyahia Z, Pranzini E, Vazeille T, Fransolet M, Bouzin C, Brusa D, Michiels C, Gallez B, Murphy MP, Porporato PE, Sonveaux P. MitoQ Inhibits Human Breast Cancer Cell Migration, Invasion and Clonogenicity. Cancers (Basel) 2022; 14:cancers14061516. [PMID: 35326667 PMCID: PMC8946220 DOI: 10.3390/cancers14061516] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/09/2022] [Accepted: 03/10/2022] [Indexed: 01/31/2023] Open
Abstract
To successfully generate distant metastases, metastatic progenitor cells must simultaneously possess mesenchymal characteristics, resist to anoïkis, migrate and invade directionally, resist to redox and shear stresses in the systemic circulation, and possess stem cell characteristics. These cells primarily originate from metabolically hostile areas of the primary tumor, where oxygen and nutrient deprivation, together with metabolic waste accumulation, exert a strong selection pressure promoting evasion. Here, we followed the hypothesis according to which metastasis as a whole implies the existence of metabolic sensors. Among others, mitochondria are singled out as a major source of superoxide that supports the metastatic phenotype. Molecularly, stressed cancer cells increase mitochondrial superoxide production, which activates the transforming growth factor-β pathway through src directly within mitochondria, ultimately activating focal adhesion kinase Pyk2. The existence of mitochondria-targeted antioxidants constitutes an opportunity to interfere with the metastatic process. Here, using aggressive triple-negative and HER2-positive human breast cancer cell lines as models, we report that MitoQ inhibits all the metastatic traits that we tested in vitro. Compared to other mitochondria-targeted antioxidants, MitoQ already successfully passed Phase I safety clinical trials, which provides an important incentive for future preclinical and clinical evaluations of this drug for the prevention of breast cancer metastasis.
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Affiliation(s)
- Tania Capeloa
- Pole of Pharmacology and Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; (T.C.); (J.K.); (A.C.R.); (V.L.P.); (L.X.Z.); (J.A.V.d.V.); (Z.B.); (E.P.); (T.V.); (P.E.P.)
| | - Joanna Krzystyniak
- Pole of Pharmacology and Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; (T.C.); (J.K.); (A.C.R.); (V.L.P.); (L.X.Z.); (J.A.V.d.V.); (Z.B.); (E.P.); (T.V.); (P.E.P.)
| | - Donatienne d’Hose
- Biomedical Magnetic Resonance Unit, Louvain Drug Research Institute (LDRI), Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; (D.d.); (B.G.)
| | - Amanda Canas Rodriguez
- Pole of Pharmacology and Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; (T.C.); (J.K.); (A.C.R.); (V.L.P.); (L.X.Z.); (J.A.V.d.V.); (Z.B.); (E.P.); (T.V.); (P.E.P.)
| | - Valery L. Payen
- Pole of Pharmacology and Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; (T.C.); (J.K.); (A.C.R.); (V.L.P.); (L.X.Z.); (J.A.V.d.V.); (Z.B.); (E.P.); (T.V.); (P.E.P.)
| | - Luca X. Zampieri
- Pole of Pharmacology and Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; (T.C.); (J.K.); (A.C.R.); (V.L.P.); (L.X.Z.); (J.A.V.d.V.); (Z.B.); (E.P.); (T.V.); (P.E.P.)
| | - Justine A. Van de Velde
- Pole of Pharmacology and Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; (T.C.); (J.K.); (A.C.R.); (V.L.P.); (L.X.Z.); (J.A.V.d.V.); (Z.B.); (E.P.); (T.V.); (P.E.P.)
| | - Zohra Benyahia
- Pole of Pharmacology and Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; (T.C.); (J.K.); (A.C.R.); (V.L.P.); (L.X.Z.); (J.A.V.d.V.); (Z.B.); (E.P.); (T.V.); (P.E.P.)
| | - Erica Pranzini
- Pole of Pharmacology and Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; (T.C.); (J.K.); (A.C.R.); (V.L.P.); (L.X.Z.); (J.A.V.d.V.); (Z.B.); (E.P.); (T.V.); (P.E.P.)
- Department of Experimental and Clinical Biomedical Sciences Mario Serio, University of Florence, Via le Morgagni 50, 50134 Firenze, Italy
| | - Thibaut Vazeille
- Pole of Pharmacology and Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; (T.C.); (J.K.); (A.C.R.); (V.L.P.); (L.X.Z.); (J.A.V.d.V.); (Z.B.); (E.P.); (T.V.); (P.E.P.)
| | - Maude Fransolet
- Faculty of Sciences, Bology, Laboratoire de Biochimie et Biologie Cellulaire, University of Namur, Rue de Bruxelles 61, 5000 Namur, Belgium; (M.F.); (C.M.)
| | - Caroline Bouzin
- IREC Imaging Platform (2IP), Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium;
| | - Davide Brusa
- IREC Flow Cytometry and Cell Sorting Platform, Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium;
| | - Carine Michiels
- Faculty of Sciences, Bology, Laboratoire de Biochimie et Biologie Cellulaire, University of Namur, Rue de Bruxelles 61, 5000 Namur, Belgium; (M.F.); (C.M.)
| | - Bernard Gallez
- Biomedical Magnetic Resonance Unit, Louvain Drug Research Institute (LDRI), Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; (D.d.); (B.G.)
| | - Michael P. Murphy
- MRC Mitochondrial Biology Unit, Department of Medicine, University of Cambridge, Hills Road, Cambridge CB2 0XY, UK;
| | - Paolo E. Porporato
- Pole of Pharmacology and Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; (T.C.); (J.K.); (A.C.R.); (V.L.P.); (L.X.Z.); (J.A.V.d.V.); (Z.B.); (E.P.); (T.V.); (P.E.P.)
- Department of Molecular Biotechnology and Health Science, Molecular Biotechnology Center, University of Turin, Via Nizza 52, 10126 Turin, Italy
| | - Pierre Sonveaux
- Pole of Pharmacology and Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; (T.C.); (J.K.); (A.C.R.); (V.L.P.); (L.X.Z.); (J.A.V.d.V.); (Z.B.); (E.P.); (T.V.); (P.E.P.)
- Correspondence:
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Capeloa T, Krzystyniak J, Rodriguez AC, Payen VL, Zampieri LX, Pranzini E, Derouane F, Vazeille T, Bouzin C, Duhoux FP, Murphy MP, Porporato PE, Sonveaux P. MitoQ Prevents Human Breast Cancer Recurrence and Lung Metastasis in Mice. Cancers (Basel) 2022; 14:cancers14061488. [PMID: 35326639 PMCID: PMC8946761 DOI: 10.3390/cancers14061488] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 03/08/2022] [Indexed: 02/05/2023] Open
Abstract
Simple Summary Entry in the metastatic phase is often devastating for cancer patients. Metastases originate from metastatic progenitor cells that are selected in the primary tumor and which simultaneously possess several phenotypic capabilities, including migration, invasion, and clonogenicity. We previously provided in vitro evidence that these features are collectively enforced by mitochondrial superoxide in a paradigm where mitochondria act as metabolic sensors of the tumor microenvironment and produce subcytotoxic levels of superoxide to prime metastatic progenitor cells. We also showed that these metastatic traits can be collectively countered by MitoQ, a mitochondria-targeted antioxidant that selectively deactivates mitochondrial superoxide. Here, we further establish that MitoQ prevents primary tumor recurrence after surgery, tumor take and metastasis as a whole, notably in a model of human breast cancer in mice. Since MitoQ already successfully passed Phase I clinical trials, our findings support the development of this drug as a preventive treatment against breast cancer metastasis. Abstract In oncology, the occurrence of distant metastases often marks the transition from curative to palliative care. Such outcome is highly predictable for breast cancer patients, even if tumors are detected early, and there is no specific treatment to prevent metastasis. Previous observations indicated that cancer cell mitochondria are bioenergetic sensors of the tumor microenvironment that produce superoxide to promote evasion. Here, we tested whether mitochondria-targeted antioxidant MitoQ is capable to prevent metastasis in the MDA-MB-231 model of triple-negative human breast cancer in mice and in the MMTV-PyMT model of spontaneously metastatic mouse breast cancer. At clinically relevant doses, we report that MitoQ not only prevented metastatic take and dissemination, but also local recurrence after surgery. We further provide in vitro evidence that MitoQ does not interfere with conventional chemotherapies used to treat breast cancer patients. Since MitoQ already successfully passed Phase I safety clinical trials, our preclinical data collectively provide a strong incentive to test this drug for the prevention of cancer dissemination and relapse in clinical trials with breast cancer patients.
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Affiliation(s)
- Tania Capeloa
- Pole of Pharmacology and Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; (T.C.); (J.K.); (A.C.R.); (V.L.P.); (L.X.Z.); (T.V.)
| | - Joanna Krzystyniak
- Pole of Pharmacology and Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; (T.C.); (J.K.); (A.C.R.); (V.L.P.); (L.X.Z.); (T.V.)
| | - Amanda Canas Rodriguez
- Pole of Pharmacology and Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; (T.C.); (J.K.); (A.C.R.); (V.L.P.); (L.X.Z.); (T.V.)
| | - Valéry L. Payen
- Pole of Pharmacology and Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; (T.C.); (J.K.); (A.C.R.); (V.L.P.); (L.X.Z.); (T.V.)
| | - Luca X. Zampieri
- Pole of Pharmacology and Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; (T.C.); (J.K.); (A.C.R.); (V.L.P.); (L.X.Z.); (T.V.)
| | - Erica Pranzini
- Department of Experimental and Clinical Biomedical Sciences Mario Serio, University of Florence, 50134 Firenze, Italy;
| | - Françoise Derouane
- Pole of Medical Imaging, Radiotherapy and Oncology, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; (F.D.); (F.P.D.)
- Department of Medical Oncology, Institut Roi Albert II, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium
| | - Thibaut Vazeille
- Pole of Pharmacology and Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; (T.C.); (J.K.); (A.C.R.); (V.L.P.); (L.X.Z.); (T.V.)
| | - Caroline Bouzin
- IREC Imaging Platform (2IP), Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium;
| | - François P. Duhoux
- Pole of Medical Imaging, Radiotherapy and Oncology, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; (F.D.); (F.P.D.)
- Department of Medical Oncology, Institut Roi Albert II, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium
| | - Michael P. Murphy
- MRC Mitochondrial Biology Unit, Department of Medicine, University of Cambridge, Cambridge CB2 0XY, UK;
| | - Paolo E. Porporato
- Department of Molecular Biotechnology and Health Science, Molecular Biotechnology Center, University of Turin, 10126 Turin, Italy;
| | - Pierre Sonveaux
- Pole of Pharmacology and Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; (T.C.); (J.K.); (A.C.R.); (V.L.P.); (L.X.Z.); (T.V.)
- Correspondence:
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112
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Mongirdienė A, Skrodenis L, Varoneckaitė L, Mierkytė G, Gerulis J. Reactive Oxygen Species Induced Pathways in Heart Failure Pathogenesis and Potential Therapeutic Strategies. Biomedicines 2022; 10:602. [PMID: 35327404 PMCID: PMC8945343 DOI: 10.3390/biomedicines10030602] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 02/25/2022] [Accepted: 03/02/2022] [Indexed: 02/07/2023] Open
Abstract
With respect to structural and functional cardiac disorders, heart failure (HF) is divided into HF with reduced ejection fraction (HFrEF) and HF with preserved ejection fraction (HFpEF). Oxidative stress contributes to the development of both HFrEF and HFpEF. Identification of a broad spectrum of reactive oxygen species (ROS)-induced pathways in preclinical models has provided new insights about the importance of ROS in HFrEF and HFpEF development. While current treatment strategies mostly concern neuroendocrine inhibition, recent data on ROS-induced metabolic pathways in cardiomyocytes may offer additional treatment strategies and targets for both of the HF forms. The purpose of this article is to summarize the results achieved in the fields of: (1) ROS importance in HFrEF and HFpEF pathophysiology, and (2) treatments for inhibiting ROS-induced pathways in HFrEF and HFpEF patients. ROS-producing pathways in cardiomyocytes, ROS-activated pathways in different HF forms, and treatment options to inhibit their action are also discussed.
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Affiliation(s)
- Aušra Mongirdienė
- Department of Biochemistry, Medical Academy, Lithuanian University of Health Sciences, Eiveniu str. 4, LT-50161 Kaunas, Lithuania
| | - Laurynas Skrodenis
- Medical Academy, Lithuanian University of Health Sciences, Mickevičiaus str. 9, LT-44307 Kaunas, Lithuania
| | - Leila Varoneckaitė
- Medical Academy, Lithuanian University of Health Sciences, Mickevičiaus str. 9, LT-44307 Kaunas, Lithuania
| | - Gerda Mierkytė
- Medical Academy, Lithuanian University of Health Sciences, Mickevičiaus str. 9, LT-44307 Kaunas, Lithuania
| | - Justinas Gerulis
- Medical Academy, Lithuanian University of Health Sciences, Mickevičiaus str. 9, LT-44307 Kaunas, Lithuania
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113
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Wang T, Xu H. Multi-faced roles of reactive oxygen species in anti-tumor T cell immune responses and combination immunotherapy. EXPLORATION OF MEDICINE 2022. [DOI: 10.37349/emed.2022.00076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
Abstract
T cells play a central role in anti-tumor immunity, and reactive oxygen species (ROS) lie at the crossroad on the anti-tumor T cell responses. To activate efficient T cell immunity, a moderate level of ROS is needed, however, excessive ROS would cause toxicity to the T cells, because the improper level leads to the formation and maintenance of an immunosuppressive tumor microenvironment. Up to date, strategies that modulate ROS, either increasing or decreasing, have been widely investigated. Some of them are utilized in anti-tumor therapies, showing inevitable impacts on the anti-tumor T cell immunity with both obverse and reverse sides. Herein, the impacts of ROS-increasing and ROS-decreasing treatments on the T cell responses in the tumor microenvironment are reviewed and discussed. At the same time, outcomes of combination immunotherapies are introduced to put forward inspirations to unleash the potential of immunotherapies.
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Affiliation(s)
- Tao Wang
- Department of Biomedical Engineering, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China
| | - Haiyan Xu
- Department of Biomedical Engineering, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China
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114
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Analysis of Mitochondrial Function, Structure, and Intracellular Organization In Situ in Cardiomyocytes and Skeletal Muscles. Int J Mol Sci 2022; 23:ijms23042252. [PMID: 35216368 PMCID: PMC8876605 DOI: 10.3390/ijms23042252] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 01/31/2022] [Accepted: 02/07/2022] [Indexed: 01/27/2023] Open
Abstract
Analysis of the function, structure, and intracellular organization of mitochondria is important for elucidating energy metabolism and intracellular energy transfer. In addition, basic and clinically oriented studies that investigate organ/tissue/cell dysfunction in various human diseases, including myopathies, cardiac/brain ischemia-reperfusion injuries, neurodegenerative diseases, cancer, and aging, require precise estimation of mitochondrial function. It should be noted that the main metabolic and functional characteristics of mitochondria obtained in situ (in permeabilized cells and tissue samples) and in vitro (in isolated organelles) are quite different, thereby compromising interpretations of experimental and clinical data. These differences are explained by the existence of the mitochondrial network, which possesses multiple interactions between the cytoplasm and other subcellular organelles. Metabolic and functional crosstalk between mitochondria and extra-mitochondrial cellular environments plays a crucial role in the regulation of mitochondrial metabolism and physiology. Therefore, it is important to analyze mitochondria in vivo or in situ without their isolation from the natural cellular environment. This review summarizes previous studies and discusses existing approaches and methods for the analysis of mitochondrial function, structure, and intracellular organization in situ.
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115
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Vodičková A, Koren SA, Wojtovich AP. Site-specific mitochondrial dysfunction in neurodegeneration. Mitochondrion 2022; 64:1-18. [PMID: 35182728 PMCID: PMC9035127 DOI: 10.1016/j.mito.2022.02.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 01/18/2022] [Accepted: 02/14/2022] [Indexed: 02/07/2023]
Abstract
Mitochondria are essential for neuronal survival and mitochondrial dysfunction is a hallmark of neurodegeneration. The loss in mitochondrial energy production, oxidative stress, and changes in calcium handling are associated with neurodegenerative diseases; however, different sites and types of mitochondrial dysfunction are linked to distinct neuropathologies. Understanding the causal or correlative relationship between changes in mitochondria and neuropathology will lead to new therapeutic strategies. Here, we summarize the evidence of site-specific mitochondrial dysfunction and mitochondrial-related clinical trials for neurodegenerative diseases. We further discuss potential therapeutic approaches, such as mitochondrial transplantation, restoration of mitochondrial function, and pharmacological alleviation of mitochondrial dysfunction.
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Affiliation(s)
- Anežka Vodičková
- Department of Anesthesiology and Perioperative Medicine, University of Rochester Medical Center, Rochester, NY, USA.
| | - Shon A Koren
- Department of Anesthesiology and Perioperative Medicine, University of Rochester Medical Center, Rochester, NY, USA.
| | - Andrew P Wojtovich
- Department of Anesthesiology and Perioperative Medicine, University of Rochester Medical Center, Rochester, NY, USA; Department of Pharmacology and Physiology, University of Rochester Medical Center, Rochester, NY, USA.
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116
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Ayer A, Fazakerley DJ, James DE, Stocker R. The role of mitochondrial reactive oxygen species in insulin resistance. Free Radic Biol Med 2022; 179:339-362. [PMID: 34775001 DOI: 10.1016/j.freeradbiomed.2021.11.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 10/31/2021] [Accepted: 11/06/2021] [Indexed: 12/21/2022]
Abstract
Insulin resistance is one of the earliest pathological features of a suite of diseases including type 2 diabetes collectively referred to as metabolic syndrome. There is a growing body of evidence from both pre-clinical studies and human cohorts indicating that reactive oxygen species, such as the superoxide radical anion and hydrogen peroxide are key players in the development of insulin resistance. Here we review the evidence linking mitochondrial reactive oxygen species generated within mitochondria with insulin resistance in adipose tissue and skeletal muscle, two major insulin sensitive tissues. We outline the relevant mitochondria-derived reactive species, how the mitochondrial redox state is regulated, and methodologies available to measure mitochondrial reactive oxygen species. Importantly, we highlight key experimental issues to be considered when studying the role of mitochondrial reactive oxygen species in insulin resistance. Evaluating the available literature on both mitochondrial reactive oxygen species/redox state and insulin resistance in a variety of biological systems, we conclude that the weight of evidence suggests a likely role for mitochondrial reactive oxygen species in the etiology of insulin resistance in adipose tissue and skeletal muscle. However, major limitations in the methods used to study reactive oxygen species in insulin resistance as well as the lack of data linking mitochondrial reactive oxygen species and cytosolic insulin signaling pathways are significant obstacles in proving the mechanistic link between these two processes. We provide a framework to guide future studies to provide stronger mechanistic information on the link between mitochondrial reactive oxygen species and insulin resistance as understanding the source, localization, nature, and quantity of mitochondrial reactive oxygen species, their targets and downstream signaling pathways may pave the way for important new therapeutic strategies.
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Affiliation(s)
- Anita Ayer
- Heart Research Institute, The University of Sydney, Sydney, New South Wales, Australia
| | - Daniel J Fazakerley
- Metabolic Research Laboratory, Wellcome-Medical Research Council Institute of Metabolic Science, University of Cambridge, Cambridge, United Kingdom
| | - David E James
- Charles Perkins Centre, Sydney Medical School, The University of Sydney, Sydney, Australia; School of Life and Environmental Sciences, The University of Sydney, Sydney, Australia
| | - Roland Stocker
- Heart Research Institute, The University of Sydney, Sydney, New South Wales, Australia; School of Life and Environmental Sciences, The University of Sydney, Sydney, Australia.
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117
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Liu Y, Zhang J, Tu Y, Zhu L. Potential-Independent Intracellular Drug Delivery and Mitochondrial Targeting. ACS NANO 2022; 16:1409-1420. [PMID: 34920667 PMCID: PMC9623822 DOI: 10.1021/acsnano.1c09456] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
In this study, two types of the fluoroamphiphile analogs were synthesized and self-assembled into the "core-shell" micellar nanocarriers for intracellular delivery and organelle targeting. Using the fluorescent dyes or vitamin E succinate as the cargo, the drug delivery and targeting capabilities of the fluoroamphiphiles and their micelles were evaluated in the cell lines, tumor cell spheroids, and tumor-bearing mice. The "core-fluorinated" micelles exhibited favorable physicochemical properties and improved the cellular uptake of the cargo by around 20 times compared to their "shell-fluorinated" counterparts. The results also indicated that the core-fluorinated micelles underwent an efficient clathrin-mediated endocytosis and a rapid endosomal escape thereafter. Interestingly, the internalized fluoroamphiphile micelles preferentially accumulated in mitochondria, by which the efficacy of the loaded vitamin E succinate was boosted both in vitro and in vivo. Unlike the popularly used cationic mitochondrial targeting ligands, as a charge-neutral nanocarrier, the fluoroamphiphiles' mitochondrial targeting was potential independent. The mechanism study suggested that the strong binding affinity with the phospholipids, particularly the cardiolipin, played an important role in the fluoroamphiphiles' mitochondrial targeting. These charge-neutral fluoroamphiphiles might have great potential to be a simple and reliable tool for intracellular drug delivery and mitochondrial targeting.
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Affiliation(s)
- Yin Liu
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M University, College Station, Texas 77843, United States
- School of Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou, Zhejiang Province 330106, China
| | - Jian Zhang
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M University, College Station, Texas 77843, United States
| | - Ying Tu
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M University, College Station, Texas 77843, United States
| | - Lin Zhu
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M University, College Station, Texas 77843, United States
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118
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Bandaru LJM, Ayyalasomayajula N, Murumulla L, Challa S. Mechanisms associated with the dysregulation of mitochondrial function due to lead exposure and possible implications on the development of Alzheimer's disease. Biometals 2022; 35:1-25. [PMID: 35048237 DOI: 10.1007/s10534-021-00360-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 12/09/2021] [Indexed: 01/17/2023]
Abstract
Lead (Pb) is a multimedia contaminant with various pathophysiological consequences, including cognitive decline and neural abnormalities. Recent findings have reported an association of Pb toxicity with Alzheimer's disease (AD). Studies have revealed that mitochondrial dysfunction is a pathological characteristic of AD. According to toxicology reports, Pb promotes mitochondrial oxidative stress by lowering complex III activity in the electron transport chain, boosting reactive oxygen species formation, and reducing the cell's antioxidant defence system. Here, we review recent advances in the role of mitochondria in Pb-induced AD pathology, as well as the mechanisms associated with the mitochondrial dysfunction, such as the depolarisation of the mitochondrial membrane potential, mitochondrial permeability transition pore opening; mitochondrial biogenesis, bioenergetics and mitochondrial dynamics alterations; and mitophagy and apoptosis. We also discuss possible therapeutic options for mitochondrial-targeted neurodegenerative disease (AD).
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Affiliation(s)
- Lakshmi Jaya Madhuri Bandaru
- Department of Cell Biology, National Institute of Nutrition, Indian Council of Medical Research (ICMR), Hyderabad, Telangana, 500007, India
| | - Neelima Ayyalasomayajula
- Department of Cell Biology, National Institute of Nutrition, Indian Council of Medical Research (ICMR), Hyderabad, Telangana, 500007, India
| | - Lokesh Murumulla
- Department of Cell Biology, National Institute of Nutrition, Indian Council of Medical Research (ICMR), Hyderabad, Telangana, 500007, India
| | - Suresh Challa
- Department of Cell Biology, National Institute of Nutrition, Indian Council of Medical Research (ICMR), Hyderabad, Telangana, 500007, India.
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119
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Kim SR, Song JH, Ahn JH, Jeong MS, Yang YM, Cho J, Jeong JH, Cha Y, Kim KN, Kim HP, Chang SY, Ko HJ. Obesity Exacerbates Coxsackievirus Infection via Lipid-Induced Mitochondrial Reactive Oxygen Species Generation. Immune Netw 2022; 22:e19. [PMID: 35573153 PMCID: PMC9066006 DOI: 10.4110/in.2022.22.e19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 03/16/2022] [Accepted: 03/27/2022] [Indexed: 12/03/2022] Open
Abstract
Coxsackievirus B3 (CVB3) infection causes acute pancreatitis and myocarditis. However, its pathophysiological mechanism is unclear. Here, we investigated how lipid metabolism is associated with exacerbation of CVB3 pathology using high-fat diet (HFD)-induced obese mice. Mice were intraperitoneally inoculated with 1×106 pfu/mouse of CVB3 after being fed a control or HFD to induce obesity. Mice were treated with mitoquinone (MitoQ) to reduce the level of mitochondrial ROS (mtROS). In obese mice, lipotoxicity of white adipose tissue-induced inflammation caused increased replication of CVB3 and mortality. The coxsackievirus adenovirus receptor increased under obese conditions, facilitating CVB3 replication in vitro. However, lipid-treated cells with receptor-specific inhibitors did not reduce CVB3 replication. In addition, lipid treatment increased mitochondria-derived vesicle formation and the number of multivesicular bodies. Alternatively, we found that inhibition of lipid-induced mtROS decreased viral replication. Notably, HFD-fed mice were more susceptible to CVB3-induced mortality in association with increased levels of CVB3 replication in adipose tissue, which was ameliorated by administration of the mtROS inhibitor, MitoQ. These results suggest that mtROS inhibitors can be used as potential treatments for CVB3 infection.
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Affiliation(s)
- Seong-Ryeol Kim
- Department of Pharmacy, Kangwon National University, Chuncheon 24341, Korea
| | - Jae-Hyoung Song
- Department of Pharmacy, Kangwon National University, Chuncheon 24341, Korea
- Kangwon Institute of Inclusive Technology, Kangwon National University, Chuncheon 24341, Korea
| | - Jae-Hee Ahn
- Department of Pharmacy, Kangwon National University, Chuncheon 24341, Korea
| | - Myeong Seon Jeong
- Chuncheon Center, Korea Basic Science Institute (KBSI), Chuncheon 24341, Korea
| | - Yoon Mee Yang
- Department of Pharmacy, Kangwon National University, Chuncheon 24341, Korea
| | - Jaewon Cho
- Department of Pharmacy, Kangwon National University, Chuncheon 24341, Korea
| | - Jae-Hyeon Jeong
- Department of Pharmacy, Kangwon National University, Chuncheon 24341, Korea
| | - Younggil Cha
- Department of Pharmacy, Kangwon National University, Chuncheon 24341, Korea
| | - Kil-Nam Kim
- Chuncheon Center, Korea Basic Science Institute (KBSI), Chuncheon 24341, Korea
| | - Hong Pyo Kim
- College of Pharmacy, Ajou University, Suwon 16499, Korea
| | | | - Hyun-Jeong Ko
- Department of Pharmacy, Kangwon National University, Chuncheon 24341, Korea
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Matsumoto C, Sekine H, Nahata M, Mogami S, Ohbuchi K, Fujitsuka N, Takeda H. Role of mitochondrial dysfunction in the pathogenesis of cisplatin-induced myotube atrophy. Biol Pharm Bull 2022; 45:780-792. [DOI: 10.1248/bpb.b22-00171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | | | - Miwa Nahata
- Tsumura Kampo Research Laboratories, Tsumura & Co
| | | | - Katsuya Ohbuchi
- Tsumura Advanced Technology Research Laboratories, Tsumura & Co
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121
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Visioli F, Ingram A, Beckman JS, Magnusson KR, Hagen TM. Strategies to protect against age-related mitochondrial decay: Do natural products and their derivatives help? Free Radic Biol Med 2022; 178:330-346. [PMID: 34890770 DOI: 10.1016/j.freeradbiomed.2021.12.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/24/2021] [Accepted: 12/04/2021] [Indexed: 12/12/2022]
Abstract
Mitochondria serve vital roles critical for overall cellular function outside of energy transduction. Thus, mitochondrial decay is postulated to be a key factor in aging and in age-related diseases. Mitochondria may be targets of their own decay through oxidative damage. However, treating animals with antioxidants has been met with only limited success in rejuvenating mitochondrial function or in increasing lifespan. A host of nutritional strategies outside of using traditional antioxidants have been devised to promote mitochondrial function. Dietary compounds are under study that induce gene expression, enhance mitochondrial biogenesis, mitophagy, or replenish key metabolites that decline with age. Moreover, redox-active compounds may now be targeted to mitochondria which improve their effectiveness. Herein we review the evidence that representative dietary effectors modulate mitochondrial function by stimulating their renewal or reversing the age-related loss of key metabolites. While in vitro evidence continues to accumulate that many of these compounds benefit mitochondrial function and/or prevent their decay, the results using animal models and, in some instances human clinical trials, are more mixed and sometimes even contraindicated. Thus, further research on optimal dosage and age of intervention are warranted before recommending potential mitochondrial rejuvenating compounds for human use.
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Affiliation(s)
- Francesco Visioli
- Department of Molecular Medicine, University of Padova, Italy; IMDEA-Food, Madrid, Spain
| | - Avery Ingram
- Linus Pauling Institute, Oregon State University, Corvallis, OR, 97331, USA; Department of Biochemistry and Biophysics, Oregon State University, Corvallis, OR, 97331, USA
| | - Joseph S Beckman
- Linus Pauling Institute, Oregon State University, Corvallis, OR, 97331, USA; Department of Biochemistry and Biophysics, Oregon State University, Corvallis, OR, 97331, USA
| | - Kathy R Magnusson
- Linus Pauling Institute, Oregon State University, Corvallis, OR, 97331, USA
| | - Tory M Hagen
- Linus Pauling Institute, Oregon State University, Corvallis, OR, 97331, USA; Department of Biochemistry and Biophysics, Oregon State University, Corvallis, OR, 97331, USA.
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122
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Caldeira DDAF, Weiss DJ, Rocco PRM, Silva PL, Cruz FF. Mitochondria in Focus: From Function to Therapeutic Strategies in Chronic Lung Diseases. Front Immunol 2021; 12:782074. [PMID: 34887870 PMCID: PMC8649841 DOI: 10.3389/fimmu.2021.782074] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 10/29/2021] [Indexed: 01/14/2023] Open
Abstract
Mitochondria are essential organelles for cell metabolism, growth, and function. Mitochondria in lung cells have important roles in regulating surfactant production, mucociliary function, mucus secretion, senescence, immunologic defense, and regeneration. Disruption in mitochondrial physiology can be the central point in several pathophysiologic pathways of chronic lung diseases such as chronic obstructive pulmonary disease, idiopathic pulmonary fibrosis, and asthma. In this review, we summarize how mitochondria morphology, dynamics, redox signaling, mitophagy, and interaction with the endoplasmic reticulum are involved in chronic lung diseases and highlight strategies focused on mitochondrial therapy (mito-therapy) that could be tested as a potential therapeutic target for lung diseases.
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Affiliation(s)
- Dayene de Assis Fernandes Caldeira
- Laboratory of Pulmonary Investigation, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Daniel J Weiss
- Department of Medicine, College of Medicine, University of Vermont, Burlington, VT, United States
| | - Patricia Rieken Macêdo Rocco
- Laboratory of Pulmonary Investigation, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,National Institute of Science and Technology for Regenerative Medicine, Rio de Janeiro, Brazil.,Rio de Janeiro Innovation Network in Nanosystems for Health-NanoSAÚDE/FAPERJ, Rio de Janeiro, Brazil
| | - Pedro Leme Silva
- Laboratory of Pulmonary Investigation, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,National Institute of Science and Technology for Regenerative Medicine, Rio de Janeiro, Brazil.,Rio de Janeiro Innovation Network in Nanosystems for Health-NanoSAÚDE/FAPERJ, Rio de Janeiro, Brazil
| | - Fernanda Ferreira Cruz
- Laboratory of Pulmonary Investigation, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,National Institute of Science and Technology for Regenerative Medicine, Rio de Janeiro, Brazil.,Rio de Janeiro Innovation Network in Nanosystems for Health-NanoSAÚDE/FAPERJ, Rio de Janeiro, Brazil
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123
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Mito-TIPTP Increases Mitochondrial Function by Repressing the Rubicon-p22phox Interaction in Colitis-Induced Mice. Antioxidants (Basel) 2021; 10:antiox10121954. [PMID: 34943057 PMCID: PMC8750874 DOI: 10.3390/antiox10121954] [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: 10/28/2021] [Revised: 11/29/2021] [Accepted: 12/03/2021] [Indexed: 12/25/2022] Open
Abstract
The run/cysteine-rich-domain-containing Beclin1-interacting autophagy protein (Rubicon) is essential for the regulation of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase by interacting with p22phox to trigger the production of reactive oxygen species (ROS) in immune cells. In a previous study, we demonstrated that the interaction of Rubicon with p22phox increases cellular ROS levels. The correlation between Rubicon and mitochondrial ROS (mtROS) is poorly understood. Here, we report that Rubicon interacts with p22phox in the outer mitochondrial membrane in macrophages and patients with human ulcerative colitis. Upon lipopolysaccharide (LPS) activation, the binding of Rubicon to p22phox was elevated, and increased not only cellular ROS levels but also mtROS, with an impairment of mitochondrial complex III and mitochondrial biogenesis in macrophages. Furthermore, increased Rubicon decreases mitochondrial metabolic flux in macrophages. Mito-TIPTP, which is a p22phox inhibitor containing a mitochondrial translocation signal, enhances mitochondrial function by inhibiting the association between Rubicon and p22phox in LPS-primed bone-marrow-derived macrophages (BMDMs) treated with adenosine triphosphate (ATP) or dextran sulfate sodium (DSS). Remarkably, Mito-TIPTP exhibited a therapeutic effect by decreasing mtROS in DSS-induced acute or chronic colitis mouse models. Thus, our findings suggest that Mito-TIPTP is a potential therapeutic agent for colitis by inhibiting the interaction between Rubicon and p22phox to recover mitochondrial function.
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124
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Ong HC, Coimbra JTS, Kwek G, Ramos MJ, Xing B, Fernandes PA, García F. Alkyl vs. aryl modifications: a comparative study on modular modifications of triphenylphosphonium mitochondrial vectors. RSC Chem Biol 2021; 2:1643-1650. [PMID: 34977579 PMCID: PMC8637833 DOI: 10.1039/d1cb00099c] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 08/21/2021] [Indexed: 11/21/2022] Open
Abstract
Triphenylphosphonium (TPP+) moieties are commonly conjugated to drug molecules to confer mitochondrial selectivity due to their positive charge and high lipophilicity. Although optimisation of lipophilicity can be achieved by modifying the length of the alkyl linkers between the TPP+ moiety and the drug molecule, it is not always possible. While methylation of the TPP+ moiety is a viable alternative to increase lipophilicity and mitochondrial accumulation, there are no studies comparing these two separate modular approaches. Thus, we have systematically designed, synthesised and tested a range of TPP+ molecules with varying alkyl chain lengths and degree of aryl methylation to compare the two modular methodologies for modulating lipophilicity. The ability of aryl/alkyl modified TPP+ to deliver cargo to the mitochondria was also evaluated by confocal imaging with a TPP+-conjugated fluorescein-based fluorophore. Furthermore, we have employed molecular dynamics simulations to understand the translocation of these molecules through biological membrane model systems. These results provide further insights into the thermodynamics of this process and the effect of alkyl and aryl modular modifications. Alkyl chain extension and aryl methylation can be employed to enhance mitochondrial uptake in triphenylphosphonium vectors. Here we compare these complementary strategies and their mitochondrial-targeting effects using a modular synthetic approach.![]()
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Affiliation(s)
- How Chee Ong
- School of Physical and Mathematical Sciences, Division of Chemistry and Biological Chemistry, Nanyang Technological University 21 Nanyang Link 637371 Singapore
| | - João T S Coimbra
- LAQV, REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto Rua do Campo Alegre s/n 4169-007 Portugal
| | - Germain Kwek
- School of Physical and Mathematical Sciences, Division of Chemistry and Biological Chemistry, Nanyang Technological University 21 Nanyang Link 637371 Singapore
| | - Maria J Ramos
- LAQV, REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto Rua do Campo Alegre s/n 4169-007 Portugal
| | - Bengang Xing
- School of Physical and Mathematical Sciences, Division of Chemistry and Biological Chemistry, Nanyang Technological University 21 Nanyang Link 637371 Singapore
| | - Pedro A Fernandes
- LAQV, REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto Rua do Campo Alegre s/n 4169-007 Portugal
| | - Felipe García
- School of Physical and Mathematical Sciences, Division of Chemistry and Biological Chemistry, Nanyang Technological University 21 Nanyang Link 637371 Singapore
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125
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Luo Z, Gao Y, Duan Z, Yi Y, Wang H. Mitochondria-Targeted Self-Assembly of Peptide-Based Nanomaterials. Front Bioeng Biotechnol 2021; 9:782234. [PMID: 34900970 PMCID: PMC8664541 DOI: 10.3389/fbioe.2021.782234] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 11/01/2021] [Indexed: 12/18/2022] Open
Abstract
Mitochondria are well known to serve as the powerhouse for cells and also the initiator for some vital signaling pathways. A variety of diseases are discovered to be associated with the abnormalities of mitochondria, including cancers. Thus, targeting mitochondria and their metabolisms are recognized to be promising for cancer therapy. In recent years, great efforts have been devoted to developing mitochondria-targeted pharmaceuticals, including small molecular drugs, peptides, proteins, and genes, with several molecular drugs and peptides enrolled in clinical trials. Along with the advances of nanotechnology, self-assembled peptide-nanomaterials that integrate the biomarker-targeting, stimuli-response, self-assembly, and therapeutic effect, have been attracted increasing interest in the fields of biotechnology and nanomedicine. Particularly, in situ mitochondria-targeted self-assembling peptides that can assemble on the surface or inside mitochondria have opened another dimension for the mitochondria-targeted cancer therapy. Here, we highlight the recent progress of mitochondria-targeted peptide-nanomaterials, especially those in situ self-assembly systems in mitochondria, and their applications in cancer treatments.
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Affiliation(s)
- Zhen Luo
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, China
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), Beijing, China
| | - Yujuan Gao
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), Beijing, China
| | - Zhongyu Duan
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, China
| | - Yu Yi
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), Beijing, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Hao Wang
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), Beijing, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China
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126
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Unten Y, Murai M, Sakai K, Asami Y, Yamamoto T, Masuya T, Miyoshi H. Natural tetramic acids elicit multiple inhibitory actions against mitochondrial machineries presiding over oxidative phosphorylation. Biosci Biotechnol Biochem 2021; 85:2368-2377. [PMID: 34625801 DOI: 10.1093/bbb/zbab176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 10/04/2021] [Indexed: 11/14/2022]
Abstract
The mitochondrial machineries presiding over ATP synthesis via oxidative phosphorylation are promising druggable targets. Fusaramin, a 3-acyl tetramic acid isolated from Fusarium concentricum FKI-7550, is an inhibitor of oxidative phosphorylation in Saccharomyces cerevisiae mitochondria, although its target has yet to be identified. Fusaramin significantly interfered with [3H]ADP uptake by yeast mitochondria at the concentration range inhibiting oxidative phosphorylation. A photoreactive fusaramin derivative (pFS-5) specifically labeled voltage-dependent anion channel 1 (VDAC1), which facilitates trafficking of ADP/ATP across the outer mitochondrial membrane. These results strongly suggest that the inhibition of oxidative phosphorylation by fusaramin is predominantly attributable to the impairment of VDAC1 functions. Fusaramin also inhibited FoF1-ATP synthase and ubiquinol-cytochrome c oxidoreductase (complex III) at concentrations higher than those required for the VDAC inhibition. Considering that other tetramic acid derivatives are reported to inhibit FoF1-ATP synthase and complex III, natural tetramic acids were found to elicit multiple inhibitory actions against mitochondrial machineries.
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Affiliation(s)
- Yufu Unten
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Masatoshi Murai
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | | | - Yukihiro Asami
- Graduate School of Infection Control Sciences
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Takenori Yamamoto
- Division of Molecular Target and Gene Therapy Production, National Institute of Health Sciences, Kanagawa, Japan
| | - Takahiro Masuya
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Hideto Miyoshi
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
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127
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Mani S, Swargiary G, Singh M, Agarwal S, Dey A, Ojha S, Jha NK. Mitochondrial defects: An emerging theranostic avenue towards Alzheimer's associated dysregulations. Life Sci 2021; 285:119985. [PMID: 34592237 DOI: 10.1016/j.lfs.2021.119985] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 09/10/2021] [Accepted: 09/18/2021] [Indexed: 01/02/2023]
Abstract
Mitochondria play a crucial role in expediting the energy homeostasis under varying environmental conditions. As mitochondria are controllers of both energy production and apoptotic pathways, they are also distinctively involved in controlling the neuronal cell survival and/or death. Numerous factors are responsible for mitochondria to get degraded with aging and huge functional failures in mitochondria are also found to be associated with the commencement of numerous neurodegenerative conditions, including Alzheimer's disease (AD). A large number of existing literatures promote the pivotal role of mitochondrial damage and oxidative impairment in the pathogenesis of AD. Numerous mitochondria associated processes such as mitochondrial biogenesis, fission, fusion, mitophagy, transportation and bioenergetics are crucial for proper functioning of mitochondria but are reported to be defective in AD patients. Though, the knowledge on the precise and in-depth mechanisms of these actions is still in infancy. Based upon the outcome of various significant studies, mitochondria are also being considered as therapeutic targets for AD. Here, we review the current status of mitochondrial defects in AD and also summarize the possible role of these defects in the pathogenesis of AD. The various approaches for developing the mitochondria-targeted therapies are also discussed here in detail. Consequently, it is suggested that improving mitochondrial activity via pharmacological and/or non-pharmacological interventions could postpone the onset and slow the development of AD. Further research and consequences of ongoing clinical trials should extend our understanding and help to validate conclusions regarding the causation of AD.
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Affiliation(s)
- Shalini Mani
- Centre for Emerging Diseases, Department of Biotechnology, Jaypee Institute of Information Technology, A-10, Sector 62, Noida, UP 201307, India.
| | - Geeta Swargiary
- Centre for Emerging Diseases, Department of Biotechnology, Jaypee Institute of Information Technology, A-10, Sector 62, Noida, UP 201307, India
| | - Manisha Singh
- Centre for Emerging Diseases, Department of Biotechnology, Jaypee Institute of Information Technology, A-10, Sector 62, Noida, UP 201307, India
| | | | - Abhijit Dey
- Department of Life Sciences, Presidency University, College Street, Kolkata 700073, India
| | - Shreesh Ojha
- Department of Internal Medicine, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain 17666, United Arab Emirates
| | - Niraj Kumar Jha
- Department of Biotechnology, School of Engineering & Technology (SET), Sharda University, Greater Noida, Uttar Pradesh 201310, India
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128
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Song H, Xing W, Shi X, Zhang T, Lou H, Fan P. Antitumor and toxicity study of mitochondria-targeted triptolide derivatives using triphenylphosphine (TPP +) as a carrier. Bioorg Med Chem 2021; 50:116466. [PMID: 34700239 DOI: 10.1016/j.bmc.2021.116466] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 10/01/2021] [Accepted: 10/06/2021] [Indexed: 01/23/2023]
Abstract
Based on the higher mitochondrial membrane potential (Δψm) of tumor cells than normal cells, a mitochondria-targeting strategy using delocalized lipophilic cations as carriers is a promising way to improve the antitumor effect of small molecules and to reduce toxicity. Triptolide (TP) has a strong antitumor effect but is limited in the clinic due to high systemic toxicity. Mitochondria-targeted TP derivatives were designed and synthesized using triphenylphosphine cations as carriers. The optimal derivative not only maintained the antitumor activity of TP but also showed a tumor cell selectivity trend. Moreover, the optimal derivative increased the release of lactate dehydrogenase and the production of ROS, decreased Δψm, and arrested HepG2 cells in G0/G1 phase. In a zebrafish HepG2 xenograft tumor model, the inhibitory effect of the optimal derivative was comparable to that of TP, while it had no obvious toxic effect on multiple indicators in zebrafish at the test concentrations. This work provided some evidence to support the mitochondria-targeting strategy.
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Affiliation(s)
- Huina Song
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan 250012, PR China
| | - Wenlan Xing
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan 250012, PR China
| | - Xiaojia Shi
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan 250012, PR China
| | - Tao Zhang
- Shandong Qidu Pharmaceutical Co. Ltd., Neuroprotective Drugs, Zibo 255400, PR China
| | - Hongxiang Lou
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan 250012, PR China
| | - Peihong Fan
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan 250012, PR China.
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Shi S, Wang L, van der Laan LJW, Pan Q, Verstegen MMA. Mitochondrial Dysfunction and Oxidative Stress in Liver Transplantation and Underlying Diseases: New Insights and Therapeutics. Transplantation 2021; 105:2362-2373. [PMID: 33577251 PMCID: PMC9005104 DOI: 10.1097/tp.0000000000003691] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 01/09/2021] [Accepted: 01/16/2021] [Indexed: 12/06/2022]
Abstract
Mitochondria are essential organelles for cellular energy and metabolism. Like with any organ, the liver highly depends on the function of these cellular powerhouses. Hepatotoxic insults often lead to an impairment of mitochondrial activity and an increase in oxidative stress, thereby compromising the metabolic and synthetic functions. Mitochondria play a critical role in ATP synthesis and the production or scavenging of free radicals. Mitochondria orchestrate many cellular signaling pathways involved in the regulation of cell death, metabolism, cell division, and progenitor cell differentiation. Mitochondrial dysfunction and oxidative stress are closely associated with ischemia-reperfusion injury during organ transplantation and with different liver diseases, including cholestasis, steatosis, viral hepatitis, and drug-induced liver injury. To develop novel mitochondria-targeting therapies or interventions, a better understanding of mitochondrial dysfunction and oxidative stress in hepatic pathogenesis is very much needed. Therapies targeting mitochondria impairment and oxidative imbalance in liver diseases have been extensively studied in preclinical and clinical research. In this review, we provide an overview of how oxidative stress and mitochondrial dysfunction affect liver diseases and liver transplantation. Furthermore, we summarize recent developments of antioxidant and mitochondria-targeted interventions.
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Affiliation(s)
- Shaojun Shi
- Department of Surgery, Erasmus MC-University Medical Center, Rotterdam, the Netherlands
| | - Ling Wang
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, Rotterdam, the Netherlands
| | - Luc J W van der Laan
- Department of Surgery, Erasmus MC-University Medical Center, Rotterdam, the Netherlands
| | - Qiuwei Pan
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, Rotterdam, the Netherlands
| | - Monique M A Verstegen
- Department of Surgery, Erasmus MC-University Medical Center, Rotterdam, the Netherlands
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130
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Fernandes C, Videira AJC, Veloso CD, Benfeito S, Soares P, Martins JD, Gonçalves B, Duarte JFS, Santos AMS, Oliveira PJ, Borges F, Teixeira J, Silva FSG. Cytotoxicity and Mitochondrial Effects of Phenolic and Quinone-Based Mitochondria-Targeted and Untargeted Antioxidants on Human Neuronal and Hepatic Cell Lines: A Comparative Analysis. Biomolecules 2021; 11:1605. [PMID: 34827603 PMCID: PMC8615458 DOI: 10.3390/biom11111605] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/19/2021] [Accepted: 10/25/2021] [Indexed: 01/15/2023] Open
Abstract
Mitochondriotropic antioxidants (MC3, MC6.2, MC4 and MC7.2) based on dietary antioxidants and analogs (caffeic, hydrocaffeic, trihydroxyphenylpropanoic and trihydroxycinnamic acids) were developed. In this study, we evaluate and compare the cytotoxicity profile of novel mitochondria-targeted molecules (generally known as MitoCINs) on human HepG2 and differentiated SH-SY5Y cells with the quinone-based mitochondria-targeted antioxidants MitoQ and SkQ1 and with two non-targeted antioxidants, resveratrol and coenzyme Q10 (CoQ10). We further evaluate their effects on mitochondrial membrane potential, cellular oxygen consumption and extracellular acidification rates. Overall, MitoCINs derivatives reduced cell viability at concentrations about six times higher than those observed with MitoQ and SkQ1. A toxicity ranking for both cell lines was produced: MC4 < MC7.2 < MC3 < MC6.2. These results suggest that C-6 carbon linker and the presence of a pyrogallol group result in lower cytotoxicity. MC3 and MC6.2 affected the mitochondrial function more significantly relative to MitoQ, SkQ1, resveratrol and CoQ10, while MC4 and MC7.2 displayed around 100-1000 times less cytotoxicity than SkQ1 and MitoQ. Based on the mitochondrial and cytotoxicity cellular data, MC4 and MC7.2 are proposed as leads that can be optimized to develop safe drug candidates with therapeutic application in mitochondrial oxidative stress-related diseases.
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Affiliation(s)
- Carlos Fernandes
- Mitotag, Biocant Park, Parque Tecnológico de Cantanhede, Núcleo 04, Lote 4, 3060-197 Cantanhede, Portugal; (A.J.C.V.); (C.D.V.); (J.D.M.); (B.G.); (J.F.S.D.); (A.M.S.S.); (J.T.)
| | - Afonso J. C. Videira
- Mitotag, Biocant Park, Parque Tecnológico de Cantanhede, Núcleo 04, Lote 4, 3060-197 Cantanhede, Portugal; (A.J.C.V.); (C.D.V.); (J.D.M.); (B.G.); (J.F.S.D.); (A.M.S.S.); (J.T.)
| | - Caroline D. Veloso
- Mitotag, Biocant Park, Parque Tecnológico de Cantanhede, Núcleo 04, Lote 4, 3060-197 Cantanhede, Portugal; (A.J.C.V.); (C.D.V.); (J.D.M.); (B.G.); (J.F.S.D.); (A.M.S.S.); (J.T.)
| | - Sofia Benfeito
- CIQUP/Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal; (S.B.); (P.S.); (F.B.)
| | - Pedro Soares
- CIQUP/Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal; (S.B.); (P.S.); (F.B.)
| | - João D. Martins
- Mitotag, Biocant Park, Parque Tecnológico de Cantanhede, Núcleo 04, Lote 4, 3060-197 Cantanhede, Portugal; (A.J.C.V.); (C.D.V.); (J.D.M.); (B.G.); (J.F.S.D.); (A.M.S.S.); (J.T.)
| | - Beatriz Gonçalves
- Mitotag, Biocant Park, Parque Tecnológico de Cantanhede, Núcleo 04, Lote 4, 3060-197 Cantanhede, Portugal; (A.J.C.V.); (C.D.V.); (J.D.M.); (B.G.); (J.F.S.D.); (A.M.S.S.); (J.T.)
| | - José F. S. Duarte
- Mitotag, Biocant Park, Parque Tecnológico de Cantanhede, Núcleo 04, Lote 4, 3060-197 Cantanhede, Portugal; (A.J.C.V.); (C.D.V.); (J.D.M.); (B.G.); (J.F.S.D.); (A.M.S.S.); (J.T.)
| | - António M. S. Santos
- Mitotag, Biocant Park, Parque Tecnológico de Cantanhede, Núcleo 04, Lote 4, 3060-197 Cantanhede, Portugal; (A.J.C.V.); (C.D.V.); (J.D.M.); (B.G.); (J.F.S.D.); (A.M.S.S.); (J.T.)
| | - Paulo J. Oliveira
- CNC—Center for Neuroscience and Cell Biology, CIBB—Center for Innovative Biomedicine and Biotechnology, University of Coimbra, 3004-504 Coimbra, Portugal;
| | - Fernanda Borges
- CIQUP/Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal; (S.B.); (P.S.); (F.B.)
| | - José Teixeira
- Mitotag, Biocant Park, Parque Tecnológico de Cantanhede, Núcleo 04, Lote 4, 3060-197 Cantanhede, Portugal; (A.J.C.V.); (C.D.V.); (J.D.M.); (B.G.); (J.F.S.D.); (A.M.S.S.); (J.T.)
- CNC—Center for Neuroscience and Cell Biology, CIBB—Center for Innovative Biomedicine and Biotechnology, University of Coimbra, 3004-504 Coimbra, Portugal;
| | - Filomena S. G. Silva
- Mitotag, Biocant Park, Parque Tecnológico de Cantanhede, Núcleo 04, Lote 4, 3060-197 Cantanhede, Portugal; (A.J.C.V.); (C.D.V.); (J.D.M.); (B.G.); (J.F.S.D.); (A.M.S.S.); (J.T.)
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Parodi-Rullán RM, Javadov S, Fossati S. Dissecting the Crosstalk between Endothelial Mitochondrial Damage, Vascular Inflammation, and Neurodegeneration in Cerebral Amyloid Angiopathy and Alzheimer's Disease. Cells 2021; 10:cells10112903. [PMID: 34831125 PMCID: PMC8616424 DOI: 10.3390/cells10112903] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/22/2021] [Accepted: 10/24/2021] [Indexed: 12/25/2022] Open
Abstract
Alzheimer’s disease (AD) is the most prevalent cause of dementia and is pathologically characterized by the presence of parenchymal senile plaques composed of amyloid β (Aβ) and intraneuronal neurofibrillary tangles of hyperphosphorylated tau protein. The accumulation of Aβ also occurs within the cerebral vasculature in over 80% of AD patients and in non-demented individuals, a condition called cerebral amyloid angiopathy (CAA). The development of CAA is associated with neurovascular dysfunction, blood–brain barrier (BBB) leakage, and persistent vascular- and neuro-inflammation, eventually leading to neurodegeneration. Although pathologically AD and CAA are well characterized diseases, the chronology of molecular changes that lead to their development is still unclear. Substantial evidence demonstrates defects in mitochondrial function in various cells of the neurovascular unit as well as in the brain parenchyma during the early stages of AD and CAA. Dysfunctional mitochondria release danger-associated molecular patterns (DAMPs) that activate a wide range of inflammatory pathways. In this review, we gather evidence to postulate a crucial role of the mitochondria, specifically of cerebral endothelial cells, as sensors and initiators of Aβ-induced vascular inflammation. The activated vasculature recruits circulating immune cells into the brain parenchyma, leading to the development of neuroinflammation and neurodegeneration in AD and CAA.
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Affiliation(s)
- Rebecca M. Parodi-Rullán
- Alzheimer’s Center at Temple, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA;
| | - Sabzali Javadov
- Department of Physiology, University of Puerto Rico School of Medicine, San Juan, PR 00921, USA;
| | - Silvia Fossati
- Alzheimer’s Center at Temple, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA;
- Correspondence: ; Tel.: +1-215-707-6046
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132
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Disentangling Mitochondria in Alzheimer's Disease. Int J Mol Sci 2021; 22:ijms222111520. [PMID: 34768950 PMCID: PMC8583788 DOI: 10.3390/ijms222111520] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/21/2021] [Accepted: 10/22/2021] [Indexed: 12/12/2022] Open
Abstract
Alzheimer's disease (AD) is a major cause of dementia in older adults and is fast becoming a major societal and economic burden due to an increase in life expectancy. Age seems to be the major factor driving AD, and currently, only symptomatic treatments are available. AD has a complex etiology, although mitochondrial dysfunction, oxidative stress, inflammation, and metabolic abnormalities have been widely and deeply investigated as plausible mechanisms for its neuropathology. Aβ plaques and hyperphosphorylated tau aggregates, along with cognitive deficits and behavioral problems, are the hallmarks of the disease. Restoration of mitochondrial bioenergetics, prevention of oxidative stress, and diet and exercise seem to be effective in reducing Aβ and in ameliorating learning and memory problems. Many mitochondria-targeted antioxidants have been tested in AD and are currently in development. However, larger streamlined clinical studies are needed to provide hard evidence of benefits in AD. This review discusses the causative factors, as well as potential therapeutics employed in the treatment of AD.
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133
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Mironov VF, Nemtarev AV, Tsepaeva OV, Dimukhametov MN, Litvinov IA, Voloshina AD, Pashirova TN, Titov EA, Lyubina AP, Amerhanova SK, Gubaidullin AT, Islamov DR. Rational Design 2-Hydroxypropylphosphonium Salts as Cancer Cell Mitochondria-Targeted Vectors: Synthesis, Structure, and Biological Properties. Molecules 2021; 26:6350. [PMID: 34770759 PMCID: PMC8588467 DOI: 10.3390/molecules26216350] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 10/09/2021] [Accepted: 10/11/2021] [Indexed: 11/17/2022] Open
Abstract
It has been shown for a wide range of epoxy compounds that their interaction with triphenylphosphonium triflate occurs with a high chemoselectivity and leads to the formation of (2-hydroxypropyl)triphenylphosphonium triflates 3 substituted in the 3-position with an alkoxy, alkylcarboxyl group, or halogen, which were isolated in a high yield. Using the methodology for the disclosure of epichlorohydrin with alcohols in the presence of boron trifluoride etherate, followed by the substitution of iodine for chlorine and treatment with triphenylphosphine, 2-hydroxypropyltriphenylphosphonium iodides 4 were also obtained. The molecular and supramolecular structure of the obtained phosphonium salts was established, and their high antitumor activity was revealed in relation to duodenal adenocarcinoma. The formation of liposomal systems based on phosphonium salt 3 and L-α-phosphatidylcholine (PC) was employed for improving the bioavailability and reducing the toxicity. They were produced by the thin film rehydration method and exhibited cytotoxic properties. This rational design of phosphonium salts 3 and 4 has promising potential of new vectors for targeted delivery into mitochondria of tumor cells.
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Affiliation(s)
- Vladimir F. Mironov
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov St., 420088 Kazan, Russia; (A.V.N.); (O.V.T.); (M.N.D.); (I.A.L.); (A.D.V.); (T.N.P.); (A.P.L.); (S.K.A.); (A.T.G.); (D.R.I.)
| | - Andrey V. Nemtarev
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov St., 420088 Kazan, Russia; (A.V.N.); (O.V.T.); (M.N.D.); (I.A.L.); (A.D.V.); (T.N.P.); (A.P.L.); (S.K.A.); (A.T.G.); (D.R.I.)
| | - Olga V. Tsepaeva
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov St., 420088 Kazan, Russia; (A.V.N.); (O.V.T.); (M.N.D.); (I.A.L.); (A.D.V.); (T.N.P.); (A.P.L.); (S.K.A.); (A.T.G.); (D.R.I.)
| | - Mudaris N. Dimukhametov
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov St., 420088 Kazan, Russia; (A.V.N.); (O.V.T.); (M.N.D.); (I.A.L.); (A.D.V.); (T.N.P.); (A.P.L.); (S.K.A.); (A.T.G.); (D.R.I.)
| | - Igor A. Litvinov
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov St., 420088 Kazan, Russia; (A.V.N.); (O.V.T.); (M.N.D.); (I.A.L.); (A.D.V.); (T.N.P.); (A.P.L.); (S.K.A.); (A.T.G.); (D.R.I.)
| | - Alexandra D. Voloshina
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov St., 420088 Kazan, Russia; (A.V.N.); (O.V.T.); (M.N.D.); (I.A.L.); (A.D.V.); (T.N.P.); (A.P.L.); (S.K.A.); (A.T.G.); (D.R.I.)
| | - Tatiana N. Pashirova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov St., 420088 Kazan, Russia; (A.V.N.); (O.V.T.); (M.N.D.); (I.A.L.); (A.D.V.); (T.N.P.); (A.P.L.); (S.K.A.); (A.T.G.); (D.R.I.)
| | - Eugenii A. Titov
- Alexander Butlerov Institute of Chemistry, Kazan (Volga Region) Federal University, 18 Kremlevskaya St., 420008 Kazan, Russia;
| | - Anna P. Lyubina
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov St., 420088 Kazan, Russia; (A.V.N.); (O.V.T.); (M.N.D.); (I.A.L.); (A.D.V.); (T.N.P.); (A.P.L.); (S.K.A.); (A.T.G.); (D.R.I.)
| | - Syumbelya K. Amerhanova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov St., 420088 Kazan, Russia; (A.V.N.); (O.V.T.); (M.N.D.); (I.A.L.); (A.D.V.); (T.N.P.); (A.P.L.); (S.K.A.); (A.T.G.); (D.R.I.)
| | - Aidar T. Gubaidullin
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov St., 420088 Kazan, Russia; (A.V.N.); (O.V.T.); (M.N.D.); (I.A.L.); (A.D.V.); (T.N.P.); (A.P.L.); (S.K.A.); (A.T.G.); (D.R.I.)
| | - Daut R. Islamov
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov St., 420088 Kazan, Russia; (A.V.N.); (O.V.T.); (M.N.D.); (I.A.L.); (A.D.V.); (T.N.P.); (A.P.L.); (S.K.A.); (A.T.G.); (D.R.I.)
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134
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Yu G, Wang Y, Zhao J. Inhibitory effect of mitoquinone against the α-synuclein fibrillation and relevant neurotoxicity: possible role in inhibition of Parkinson's disease. Biol Chem 2021; 403:253-263. [PMID: 34653323 DOI: 10.1515/hsz-2021-0312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 09/16/2021] [Indexed: 02/07/2023]
Abstract
Extensive studies have reported that interaction of α-synuclein amyloid species with neurons is a crucial mechanistic characteristic of Parkinson's disease (PD) and small molecules can downregulate the neurotoxic effects induced by protein aggregation. However, the exact mechanism(s) of these neuroprotective effects by small molecules remain widely unknown. In the present study, α-synuclein samples in the amyloidogenic condition were aged for 120 h with or without different concentrations of mitoquinone (MitoQ) as a quinone derivative compound and the amyloid characteristics and the relevant neurotoxicity were evaluated by Thioflavin T (ThT)/Nile red fluorescence, Congo red absorption, circular dichroism (CD), transmission electron microscopy (TEM), cell viability, lactate dehydrogenase (LDH), reactive oxygen species (ROS), reactive nitrogen species (RNS), malondialdehyde (MDA), superoxide dismutase (SOD), and caspase-9/-3 activity assays. Results clearly showed the capacity of MitoQ on the inhibition of the formation of α-synuclein fibrillation products through modulation of the aggregation pathway by an effect on the kinetic parameters. Also, it was shown that α-synuclein samples aged for 120 h with MitoQ trigger less neurotoxic effects against SH-SY5Y cells than α-synuclein amyloid alone. Indeed, co-incubation of α-synuclein with MitoQ reduced the membrane leakage, oxidative and nitro-oxidative stress, modifications of macromolecules, and apoptosis.
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Affiliation(s)
- Gege Yu
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, 471009, China
| | - Yonghui Wang
- Department of Neurosurgery, Qingzhou Hospital Affiliated to Shandong First Medical University, Weifang, Shandong, 262500, China.,Department of Neurosurgery, Qingzhou People's Hospital, Weifang, 262500, China
| | - Jinhua Zhao
- Department of Neurology, The First People's Hospital of Xianyang, Xianyang, 712000, China
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135
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The Role of Mitochondria in Oocyte Maturation. Cells 2021; 10:cells10092484. [PMID: 34572133 PMCID: PMC8469615 DOI: 10.3390/cells10092484] [Citation(s) in RCA: 112] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 09/09/2021] [Accepted: 09/16/2021] [Indexed: 12/13/2022] Open
Abstract
With the nucleus as an exception, mitochondria are the only animal cell organelles containing their own genetic information, called mitochondrial DNA (mtDNA). During oocyte maturation, the mtDNA copy number dramatically increases and the distribution of mitochondria changes significantly. As oocyte maturation requires a large amount of ATP for continuous transcription and translation, the availability of the right number of functional mitochondria is crucial. There is a correlation between the quality of oocytes and both the amount of mtDNA and the amount of ATP. Suboptimal conditions of in vitro maturation (IVM) might lead to changes in the mitochondrial morphology as well as alternations in the expression of genes encoding proteins associated with mitochondrial function. Dysfunctional mitochondria have a lower ability to counteract reactive oxygen species (ROS) production which leads to oxidative stress. The mitochondrial function might be improved with the application of antioxidants and significant expectations are laid on the development of new IVM systems supplemented with mitochondria-targeted reagents. Different types of antioxidants have been tested already on animal models and human rescue IVM oocytes, showing promising results. This review focuses on the recent observations on oocytes’ intracellular mitochondrial distribution and on mitochondrial genomes during their maturation, both in vivo and in vitro. Recent mitochondrial supplementation studies, aiming to improve oocyte developmental potential, are summarized.
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136
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Shi Y, Fu L, Yang J, Carroll KS. Wittig reagents for chemoselective sulfenic acid ligation enables global site stoichiometry analysis and redox-controlled mitochondrial targeting. Nat Chem 2021; 13:1140-1150. [PMID: 34531572 DOI: 10.1038/s41557-021-00767-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 07/05/2021] [Indexed: 02/02/2023]
Abstract
Triphenylphosphonium ylides, known as Wittig reagents, are one of the most commonly used tools in synthetic chemistry. Despite their considerable versatility, Wittig reagents have not yet been explored for their utility in biological applications. Here we introduce a chemoselective ligation reaction that harnesses the reactivity of Wittig reagents and the unique chemical properties of sulfenic acid, a pivotal post-translational cysteine modification in redox biology. The reaction, which generates a covalent bond between the ylide nucleophilic α-carbon and electrophilic γ-sulfur, is highly selective, rapid and affords robust labelling under a range of biocompatible reaction conditions, which includes in living cells. We highlight the broad utility of this conjugation method to enable site-specific proteome-wide stoichiometry analysis of S-sulfenylation and to visualize redox-dependent changes in mitochondrial cysteine oxidation and redox-triggered triphenylphosphonium generation for the controlled delivery of small molecules to mitochondria.
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Affiliation(s)
- Yunlong Shi
- Department of Chemistry, The Scripps Research Institute, Jupiter, FL, USA
| | - Ling Fu
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing, China.,National Center for Protein Sciences-Beijing, Beijing, China.,Beijing Institute of Lifeomics, Beijing, China
| | - Jing Yang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing, China. .,National Center for Protein Sciences-Beijing, Beijing, China. .,Beijing Institute of Lifeomics, Beijing, China.
| | - Kate S Carroll
- Department of Chemistry, The Scripps Research Institute, Jupiter, FL, USA.
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137
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Nagase H, Watanabe T, Koshikawa N, Yamamoto S, Takenaga K, Lin J. Mitochondria: Endosymbiont bacteria DNA sequence as a target against cancer. Cancer Sci 2021; 112:4834-4843. [PMID: 34533888 PMCID: PMC8645765 DOI: 10.1111/cas.15143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/10/2021] [Accepted: 09/12/2021] [Indexed: 12/21/2022] Open
Abstract
As the energy factory for the cell, the mitochondrion, through its role of adenosine triphosphate production by oxidative phosphorylation, can be regarded as the guardian of well regulated cellular metabolism; the integrity of mitochondrial functions, however, is particularly vulnerable in cancer due to the lack of superstructures such as histone and lamina folds to protect the mitochondrial genome from unintended exposure, which consequently elevates risks of mutation. In cancer, mechanisms responsible for enforcing quality control surveillance for identifying and eliminating defective mitochondria are often poorly regulated, and certain uneliminated mitochondrial DNA (mtDNA) mutations and polymorphisms can be advantageous for the proliferation, progression, and metastasis of tumor cells. Such pathogenic mtDNA aberrations are likely to increase and occasionally be homoplasmic in cancer cells and, intriguingly, in normal cells in the proximity of tumor microenvironments as well. Distinct characteristics of these abnormalities in mtDNA may provide a new path for cancer therapy. Here we discuss a promising novel therapeutic strategy, using the sequence‐specific properties of pyrrole‐imidazole polyamide‐triphenylphosphonium conjugates, against cancer for clearing abnormal mtDNA by reactivating mitochondrial quality control surveillance.
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Affiliation(s)
- Hiroki Nagase
- Division of Cancer Genetics, Chiba Cancer Center Research Institute, Chiba, Japan
| | - Takayoshi Watanabe
- Division of Innovative Cancer Therapeutics, Chiba Cancer Center Research Institute, Chiba, Japan
| | - Nobuko Koshikawa
- Division of Cancer Genetics, Chiba Cancer Center Research Institute, Chiba, Japan
| | - Seigi Yamamoto
- Division of Cancer Genetics, Chiba Cancer Center Research Institute, Chiba, Japan
| | - Keizo Takenaga
- Division of Cancer Genetics, Chiba Cancer Center Research Institute, Chiba, Japan
| | - Jason Lin
- Division of Cancer Genetics, Chiba Cancer Center Research Institute, Chiba, Japan
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138
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Zhong L, Deng J, Gu C, Shen L, Ren Z, Ma X, Yan Q, Deng J, Zuo Z, Wang Y, Cao S, Yu S. Protective effect of MitoQ on oxidative stress-mediated senescence of canine bone marrow mesenchymal stem cells via activation of the Nrf2/ARE pathway. In Vitro Cell Dev Biol Anim 2021; 57:685-694. [PMID: 34518994 DOI: 10.1007/s11626-021-00605-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 06/26/2021] [Indexed: 10/20/2022]
Abstract
The destruction of biological activity such as senescence and apoptosis caused by oxidative stress could play a pivotal role in the poor therapeutic efficiency of bone marrow mesenchymal stem cells (BMSCs) transplantation. Mitoquinone (MitoQ) has a highly effective mitochondrial antioxidant effect, and has been widely used in many oxidative damage models. This study aimed to investigate the protective effect of MitoQ on the oxidative stress-mediated senescence of canine BMSCs and the underlying mechanism. The senescence of BMSCs was determined by senescence-associated β-galactosidase staining and quantitative real-time PCR. The expression of p-Nrf2 protein was detected by Western blotting. The results demonstrated that, as BMSCs were expanded in vitro, the senescent phenotype appeared. And the senescence of BMSCs may be caused by oxidative stress, manifested by increasing the level of ROS and decreasing the activity of antioxidant enzymes. Treatment of MitoQ down-regulated the mRNA levels of senescence-related and apoptosis-related genes, but up-regulated the mRNA levels of proliferation-related genes. Meanwhile, ROS generation and senescent activity were reduced in MitoQ-treated BMSCs. Further mechanism studies showed that MitoQ obviously promoted Nrf2 phosphorylation, and also facilitated the translocation of Nrf2 into the nucleus. Moreover, treatment of MitoQ increased the mRNA levels of downstream antioxidant genes and enhanced the activities of superoxide dismutase, catalase, and glutathione peroxidase. Thus, our study revealed that MitoQ, via the Nrf2/ARE signaling pathway, exerts an antioxidant effect as well as potentially delays OS-mediated senescence during BMSCs that were expanded in vitro, which may serve as a novel strategy to optimize the clinical application of BMSCs.
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Affiliation(s)
- Lijun Zhong
- College of Veterinary Medicine, Sichuan Agricultural University, 211 Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, China
| | - Jiaqiang Deng
- College of Veterinary Medicine, Sichuan Agricultural University, 211 Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, China
| | - Congwei Gu
- College of Veterinary Medicine, Sichuan Agricultural University, 211 Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, China.,Laboratory Animal Centre, Southwest Medical University, Luzhou, Sichuan, China
| | - Liuhong Shen
- College of Veterinary Medicine, Sichuan Agricultural University, 211 Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, China
| | - Zhihua Ren
- College of Veterinary Medicine, Sichuan Agricultural University, 211 Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, China
| | - Xiaoping Ma
- College of Veterinary Medicine, Sichuan Agricultural University, 211 Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, China
| | - Qigui Yan
- College of Veterinary Medicine, Sichuan Agricultural University, 211 Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, China
| | - Junliang Deng
- College of Veterinary Medicine, Sichuan Agricultural University, 211 Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, China
| | - Zhicai Zuo
- College of Veterinary Medicine, Sichuan Agricultural University, 211 Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, China
| | - Ya Wang
- College of Veterinary Medicine, Sichuan Agricultural University, 211 Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, China
| | - Suizhong Cao
- College of Veterinary Medicine, Sichuan Agricultural University, 211 Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, China
| | - Shumin Yu
- College of Veterinary Medicine, Sichuan Agricultural University, 211 Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, China.
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139
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Shyam R, Ogando DG, Choi M, Liton PB, Bonanno JA. Mitochondrial ROS Induced Lysosomal Dysfunction and Autophagy Impairment in an Animal Model of Congenital Hereditary Endothelial Dystrophy. Invest Ophthalmol Vis Sci 2021; 62:15. [PMID: 34533563 PMCID: PMC8458782 DOI: 10.1167/iovs.62.12.15] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 08/18/2021] [Indexed: 01/04/2023] Open
Abstract
Purpose The Slc4a11 knock out (KO) mouse model recapitulates the human disease phenotype associated with congenital hereditary endothelial dystrophy (CHED). Increased mitochondrial reactive oxygen species (ROS) in the Slc4a11 KO mouse model is a major cause of edema and endothelial cell loss. Here, we asked if autophagy was activated by ROS in the KO mice. Methods Immortalized cell lines and mouse corneal endothelia were used to measure autophagy and lysosome associated protein expressions using Protein Simple Wes immunoassay. Autophagy and lysosome functions were examined in wild type (WT) and KO cells as well as animals treated with the mitochondrial ROS quencher MitoQ. Results Even though autophagy activation was evident, autophagy flux was aberrant in Slc4a11 KO cells and corneal endothelium. Expression of lysosomal proteins and lysosomal mass were decreased along with reduced nuclear translocation of lysosomal master regulator, transcription factor EB (TFEB). MitoQ reversed aberrant lysosomal functions and TFEB nuclear localization in KO cells. MitoQ injections in KO animals reduced corneal edema and decreased the rate of endothelial cell loss. Conclusions Mitochondrial ROS disrupts TFEB signaling causing lysosomal dysfunction with impairment of autophagy in Slc4a11 KO corneal endothelium. Our study is the first to identify the presence as well as cause of lysosomal dysfunction in an animal model of CHED, and to identify a potential therapeutic approach.
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MESH Headings
- Animals
- Anion Transport Proteins/genetics
- Autophagy/physiology
- Basic Helix-Loop-Helix Leucine Zipper Transcription Factors/metabolism
- Blotting, Western
- Cathepsin L/metabolism
- Cells, Cultured
- Corneal Dystrophies, Hereditary/genetics
- Corneal Dystrophies, Hereditary/metabolism
- Corneal Dystrophies, Hereditary/pathology
- Disease Models, Animal
- Endothelium, Corneal/drug effects
- Endothelium, Corneal/metabolism
- Gene Expression Regulation
- Immunohistochemistry
- Injections, Intraperitoneal
- Lysosomes/metabolism
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Microscopy, Fluorescence
- Mitochondria/metabolism
- Organophosphorus Compounds/pharmacology
- Reactive Oxygen Species/metabolism
- Real-Time Polymerase Chain Reaction
- Symporters/genetics
- Transfection
- Ubiquinone/analogs & derivatives
- Ubiquinone/pharmacology
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Affiliation(s)
- Rajalekshmy Shyam
- Vision Science Program, School of Optometry, Indiana University, Bloomington, Indiana, United States
| | - Diego G. Ogando
- Vision Science Program, School of Optometry, Indiana University, Bloomington, Indiana, United States
| | - Moonjung Choi
- Vision Science Program, School of Optometry, Indiana University, Bloomington, Indiana, United States
| | - Paloma B. Liton
- Department of Ophthalmology, Duke University, Durham, North Carolina, United States
| | - Joseph A. Bonanno
- Vision Science Program, School of Optometry, Indiana University, Bloomington, Indiana, United States
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140
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Rodríguez-Varela C, Labarta E. Does Coenzyme Q10 Supplementation Improve Human Oocyte Quality? Int J Mol Sci 2021; 22:ijms22179541. [PMID: 34502447 PMCID: PMC8431086 DOI: 10.3390/ijms22179541] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/23/2021] [Accepted: 08/30/2021] [Indexed: 12/19/2022] Open
Abstract
Acquiring oocyte competence requires optimal mitochondrial function and adequate ATP levels. In this context, CoQ10 supplementation may improve human oocyte quality and subsequent reproductive performance given its role in ATP synthesis and mitochondrial protection from ROS oxidative damage. In infertility treatments, CoQ10 therapy can be orally supplied to promote a more favorable environment for oocyte development in vivo or by its addition to culture media in an attempt to improve its quality in vitro. Human clinical studies evaluating the impact of CoQ10 on reproductive performance are summarized in this review, although the available data do not clearly prove its ability to improve human oocyte quality. The main objective is to provide readers with a complete overview of this topic's current status as well as the keys for potential future research lines that may help to take this therapy to clinical practice. Indeed, further clinical trials are needed to confirm these results along with molecular studies to evaluate the impact of CoQ10 supplementation on oxidative stress status and mitochondrial function in human gametes.
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Affiliation(s)
| | - Elena Labarta
- IVI Foundation—IIS La Fe, 46026 Valencia, Spain;
- IVIRMA Valencia, 46015 Valencia, Spain
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141
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Papachristodoulou A, Rodriguez-Calero A, Panja S, Margolskee E, Virk RK, Milner TA, Martina LP, Kim JY, Di Bernardo M, Williams AB, Maliza EA, Caputo JM, Haas C, Wang V, De Castro GJ, Wenske S, Hibshoosh H, McKiernan JM, Shen MM, Rubin MA, Mitrofanova A, Dutta A, Abate-Shen C. NKX3.1 Localization to Mitochondria Suppresses Prostate Cancer Initiation. Cancer Discov 2021; 11:2316-2333. [PMID: 33893149 PMCID: PMC7611624 DOI: 10.1158/2159-8290.cd-20-1765] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 03/20/2021] [Accepted: 04/21/2021] [Indexed: 11/16/2022]
Abstract
Mitochondria provide the first line of defense against the tumor-promoting effects of oxidative stress. Here we show that the prostate-specific homeoprotein NKX3.1 suppresses prostate cancer initiation by protecting mitochondria from oxidative stress. Integrating analyses of genetically engineered mouse models, human prostate cancer cells, and human prostate cancer organotypic cultures, we find that, in response to oxidative stress, NKX3.1 is imported to mitochondria via the chaperone protein HSPA9, where it regulates transcription of mitochondrial-encoded electron transport chain (ETC) genes, thereby restoring oxidative phosphorylation and preventing cancer initiation. Germline polymorphisms of NKX3.1 associated with increased cancer risk fail to protect from oxidative stress or suppress tumorigenicity. Low expression levels of NKX3.1 combined with low expression of mitochondrial ETC genes are associated with adverse clinical outcome, whereas high levels of mitochondrial NKX3.1 protein are associated with favorable outcome. This work reveals an extranuclear role for NKX3.1 in suppression of prostate cancer by protecting mitochondrial function. SIGNIFICANCE: Our findings uncover a nonnuclear function for NKX3.1 that is a key mechanism for suppression of prostate cancer. Analyses of the expression levels and subcellular localization of NKX3.1 in patients at risk of cancer progression may improve risk assessment in a precision prevention paradigm, particularly for men undergoing active surveillance.See related commentary by Finch and Baena, p. 2132.This article is highlighted in the In This Issue feature, p. 2113.
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Affiliation(s)
- Alexandros Papachristodoulou
- Department of Molecular Pharmacology and Therapeutics, Columbia University Irving Medical Center, New York, New York
| | - Antonio Rodriguez-Calero
- Department of Biomedical Research, University of Bern, Bern, Switzerland
- Institute of Pathology, University of Bern and Inselspital, Bern, Switzerland
| | - Sukanya Panja
- Department of Health Informatics, Rutgers School of Health Professions, Rutgers Biomedical and Health Sciences, Newark, New Jersey
| | - Elizabeth Margolskee
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, New York
| | - Renu K Virk
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, New York
| | - Teresa A Milner
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, New York
| | - Luis Pina Martina
- Department of Molecular Pharmacology and Therapeutics, Columbia University Irving Medical Center, New York, New York
- Department of Urology, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York
| | - Jaime Y Kim
- Department of Molecular Pharmacology and Therapeutics, Columbia University Irving Medical Center, New York, New York
| | - Matteo Di Bernardo
- Department of Molecular Pharmacology and Therapeutics, Columbia University Irving Medical Center, New York, New York
| | - Alanna B Williams
- Department of Medicine, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York
| | - Elvis A Maliza
- Department of Molecular Pharmacology and Therapeutics, Columbia University Irving Medical Center, New York, New York
| | - Joseph M Caputo
- Department of Urology, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York
| | - Christopher Haas
- Department of Urology, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York
| | - Vinson Wang
- Department of Urology, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York
| | - Guarionex Joel De Castro
- Department of Urology, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York
| | - Sven Wenske
- Department of Urology, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York
- Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York
| | - Hanina Hibshoosh
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, New York
- Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York
| | - James M McKiernan
- Department of Urology, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York
- Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York
| | - Michael M Shen
- Department of Urology, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York
- Department of Medicine, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York
- Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York
- Department of Genetics and Development, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York
- Department of Systems Biology, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York
| | - Mark A Rubin
- Department of Biomedical Research, University of Bern, Bern, Switzerland
| | - Antonina Mitrofanova
- Department of Health Informatics, Rutgers School of Health Professions, Rutgers Biomedical and Health Sciences, Newark, New Jersey
| | - Aditya Dutta
- Department of Molecular Pharmacology and Therapeutics, Columbia University Irving Medical Center, New York, New York.
- Department of Urology, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York
| | - Cory Abate-Shen
- Department of Molecular Pharmacology and Therapeutics, Columbia University Irving Medical Center, New York, New York.
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, New York
- Department of Urology, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York
- Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York
- Department of Systems Biology, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York
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142
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Aguado J, Chaggar HK, Gómez‐Inclán C, Shaker MR, Leeson HC, Mackay‐Sim A, Wolvetang EJ. Inhibition of the cGAS-STING pathway ameliorates the premature senescence hallmarks of Ataxia-Telangiectasia brain organoids. Aging Cell 2021; 20:e13468. [PMID: 34459078 PMCID: PMC8441292 DOI: 10.1111/acel.13468] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 07/04/2021] [Accepted: 08/14/2021] [Indexed: 12/13/2022] Open
Abstract
Ataxia-telangiectasia (A-T) is a genetic disorder caused by the lack of functional ATM kinase. A-T is characterized by chronic inflammation, neurodegeneration and premature ageing features that are associated with increased genome instability, nuclear shape alterations, micronuclei accumulation, neuronal defects and premature entry into cellular senescence. The causal relationship between the detrimental inflammatory signature and the neurological deficiencies of A-T remains elusive. Here, we utilize human pluripotent stem cell-derived cortical brain organoids to study A-T neuropathology. Mechanistically, we show that the cGAS-STING pathway is required for the recognition of micronuclei and induction of a senescence-associated secretory phenotype (SASP) in A-T olfactory neurosphere-derived cells and brain organoids. We further demonstrate that cGAS and STING inhibition effectively suppresses self-DNA-triggered SASP expression in A-T brain organoids, inhibits astrocyte senescence and neurodegeneration, and ameliorates A-T brain organoid neuropathology. Our study thus reveals that increased cGAS and STING activity is an important contributor to chronic inflammation and premature senescence in the central nervous system of A-T and constitutes a novel therapeutic target for treating neuropathology in A-T patients.
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Affiliation(s)
- Julio Aguado
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSaint LuciaQueenslandAustralia
| | - Harman K. Chaggar
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSaint LuciaQueenslandAustralia
- Present address:
Cellesce Ltd, Cardiff MedicentreHeath ParkCardiffUK
| | - Cecilia Gómez‐Inclán
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSaint LuciaQueenslandAustralia
| | - Mohammed R. Shaker
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSaint LuciaQueenslandAustralia
| | - Hannah C. Leeson
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSaint LuciaQueenslandAustralia
| | - Alan Mackay‐Sim
- Department of NeurogeneticsKolling InstituteSydney Medical SchoolUniversity of SydneySydneyNew South WalesAustralia
- Griffith Institute for Drug DiscoveryGriffith UniversityNathanQueenslandAustralia
| | - Ernst J. Wolvetang
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSaint LuciaQueenslandAustralia
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143
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Mizuguchi S, Gotoh K, Nakashima Y, Setoyama D, Takata Y, Ohga S, Kang D. Mitochondrial Reactive Oxygen Species Are Essential for the Development of Psoriatic Inflammation. Front Immunol 2021; 12:714897. [PMID: 34421919 PMCID: PMC8378889 DOI: 10.3389/fimmu.2021.714897] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 07/16/2021] [Indexed: 12/13/2022] Open
Abstract
Psoriasis is a common immune-mediated, chronic, inflammatory skin disease that affects approximately 2-3% of the population worldwide. Although there is increasing evidence regarding the essential roles of the interleukin (IL)-23/IL-17 axis and dendritic cell (DC)-T cell crosstalk in the development of skin inflammation, the contributions of mitochondrial function to psoriasis are unclear. In a mouse model of imiquimod (IMQ)-induced psoriasiform skin inflammation, we found that hematopoietic cell-specific genetic deletion of p32/C1qbp, a regulator of mitochondrial protein synthesis and metabolism, protects mice from IMQ-induced psoriatic inflammation. Additionally, we demonstrate that p32/C1qbp is an important regulator of IMQ-induced DC activation, both in vivo and in vitro. We also found that p32/C1qbp-deficient DCs exhibited impaired production of IL-1β, IL-23, and mitochondrial reactive oxygen species (mtROS) after IMQ stimulation. Because the inhibition of mtROS suppressed IMQ-induced DC activation and psoriatic inflammation, we presume that p32/C1qbp and mtROS can serve as therapeutic targets in psoriasis.
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Affiliation(s)
- Soichi Mizuguchi
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kazuhito Gotoh
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yuya Nakashima
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Daiki Setoyama
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yurie Takata
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shouichi Ohga
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Dongchon Kang
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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144
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Targeted elimination of mutated mitochondrial DNA by a multi-functional conjugate capable of sequence-specific adenine alkylation. Cell Chem Biol 2021; 29:690-695.e5. [PMID: 34450110 DOI: 10.1016/j.chembiol.2021.08.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 06/07/2021] [Accepted: 08/06/2021] [Indexed: 11/21/2022]
Abstract
Mutations in mitochondrial DNA (mtDNA) cause mitochondrial diseases, characterized by abnormal mitochondrial function. Although eliminating mutated mtDNA has potential to cure mitochondrial diseases, no chemical-based drugs in clinical trials are capable of selective modulation of mtDNA mutations. Here, we construct a class of compounds encompassing pyrrole-imidazole polyamides (PIPs), mitochondria-penetrating peptide, and chlorambucil, an adenine-specific DNA-alkylating reagent. The sequence-selective DNA binding of PIPs allows chlorambucil to alkylate mutant adenine more efficiently than other sites in mtDNA. In vitro DNA alkylation assay shows that our compound 8950A-Chb(Cl/OH) targeting a nonpathogenic point mutation in HeLa S3 cells (m.8950G>A) can specifically alkylate the mutant adenine. Furthermore, the compound reduces the mtDNA possessing the target mutation in cultured HeLa S3 cells. The programmability of PIPs to target different sequences could allow this class of compounds to be developed as designer drugs targeting pathogenic mutations associated with mitochondrial diseases in future studies.
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145
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Sakai K, Unten Y, Kimishima A, Nonaka K, Chinen T, Sakai K, Usui T, Shiomi K, Iwatsuki M, Murai M, Miyoshi H, Asami Y, Ōmura S. Traminines A and B, produced by Fusarium concentricum, inhibit oxidative phosphorylation in Saccharomyces cerevisiae mitochondria. J Ind Microbiol Biotechnol 2021; 48:6338109. [PMID: 34343309 PMCID: PMC8788869 DOI: 10.1093/jimb/kuab051] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 07/29/2021] [Indexed: 11/13/2022]
Abstract
Two new tetramic acid derivatives, traminines A (1) and B (2), were isolated from a culture broth of Fusarium concentricum FKI-7550 by bioassay-guided fractionation using multidrug-sensitive Saccharomyces cerevisiae 12geneΔ0HSR-iERG6. The chemical structures of 1 and 2 were elucidated by NMR studies. Compounds 1 and 2 inhibited the growth of the multidrug-sensitive yeast strain on nonfermentable medium containing glycerol, but not on fermentable medium containing glucose. These results strongly suggest that they target mitochondrial machineries presiding over ATP production via oxidative phosphorylation. Throughout the assay monitoring overall ADP-uptake/ATP-release in yeast mitochondria, 1 and 2 were shown to inhibit one or more enzymes involving oxidative phosphorylation. Based on biochemical characterization, we found that the interference with oxidative phosphorylation by 1 is attributable to the dual inhibition of complex III and FoF1-ATPase, whereas that by 2 is solely due to the inhibition of complex III.
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Affiliation(s)
- Katsuyuki Sakai
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Yufu Unten
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Aoi Kimishima
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan.,Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1, shirokane Minato-ku, Tokyo 108-8641, Japan
| | - Kenichi Nonaka
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan.,Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1, shirokane Minato-ku, Tokyo 108-8641, Japan
| | - Takumi Chinen
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8572, Japan
| | - Kazunari Sakai
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan.,Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1, shirokane Minato-ku, Tokyo 108-8641, Japan
| | - Takeo Usui
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8572, Japan
| | - Kazuro Shiomi
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan.,Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1, shirokane Minato-ku, Tokyo 108-8641, Japan
| | - Masato Iwatsuki
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan.,Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1, shirokane Minato-ku, Tokyo 108-8641, Japan
| | - Masatoshi Murai
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Hideto Miyoshi
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Yukihiro Asami
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan.,Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1, shirokane Minato-ku, Tokyo 108-8641, Japan
| | - Satoshi Ōmura
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1, shirokane Minato-ku, Tokyo 108-8641, Japan
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146
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Weissman D, Maack C. Redox signaling in heart failure and therapeutic implications. Free Radic Biol Med 2021; 171:345-364. [PMID: 34019933 DOI: 10.1016/j.freeradbiomed.2021.05.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 04/17/2021] [Accepted: 05/03/2021] [Indexed: 12/13/2022]
Abstract
Heart failure is a growing health burden worldwide characterized by alterations in excitation-contraction coupling, cardiac energetic deficit and oxidative stress. While current treatments are mostly limited to antagonization of neuroendocrine activation, more recent data suggest that also targeting metabolism may provide substantial prognostic benefit. However, although in a broad spectrum of preclinical models, oxidative stress plays a causal role for the development and progression of heart failure, no treatment that targets reactive oxygen species (ROS) directly has entered the clinical arena yet. In the heart, ROS derive from various sources, such as NADPH oxidases, xanthine oxidase, uncoupled nitric oxide synthase and mitochondria. While mitochondria are the primary source of ROS in the heart, communication between different ROS sources may be relevant for physiological signalling events as well as pathologically elevated ROS that deteriorate excitation-contraction coupling, induce hypertrophy and/or trigger cell death. Here, we review the sources of ROS in the heart, the modes of pathological activation of ROS formation as well as therapeutic approaches that may target ROS specifically in mitochondria.
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Affiliation(s)
- David Weissman
- Comprehensive Heart Failure Center (CHFC), University Clinic Würzburg, Würzburg, Germany
| | - Christoph Maack
- Comprehensive Heart Failure Center (CHFC), University Clinic Würzburg, Würzburg, Germany; Department of Internal Medicine 1, University Clinic Würzburg, Würzburg, Germany.
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147
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Kumar P, Wang M, Isachenko E, Rahimi G, Mallmann P, Wang W, von Brandenstein M, Isachenko V. Unraveling Subcellular and Ultrastructural Changes During Vitrification of Human Spermatozoa: Effect of a Mitochondria-Targeted Antioxidant and a Permeable Cryoprotectant. Front Cell Dev Biol 2021; 9:672862. [PMID: 34277615 PMCID: PMC8284099 DOI: 10.3389/fcell.2021.672862] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 05/19/2021] [Indexed: 12/20/2022] Open
Abstract
Mitochondria-targeted antioxidants have great potential to counterbalance the generated reactive oxygen species (ROS) because they cross the inner membrane of the mitochondria. Still, their use was not reported in vitrified human spermatozoa. Our laboratory has successfully vitrified spermatozoa without the use of permeable cryoprotectants, but subcellular-level evidence was missing. Therefore, this study aimed to improve spermatozoa vitrification using a mitochondria-targeted antioxidant (mitoquinone, MitoQ), reveal ultrastructural changes in the spermatozoa due to the use of a permeable cryoprotectant, and report alterations of functional proteins during the spermatozoa vitrification process. For this, each of 20 swim-up-prepared ejaculates was divided into seven aliquots and diluted with a vitrification medium supplemented with varying concentrations of MitoQ (0.02 and 0.2 μM), glycerol (1, 4, and 6%), and a combination of MitoQ and glycerol. All aliquots were vitrified by the aseptic capillary method developed in our laboratory. The spermatozoa function assays revealed that the addition of either MitoQ (0.02 μM), glycerol (1%), or a combination of MitoQ (0.02 μM) and glycerol (1%) in the vitrification medium results in better or equivalent spermatozoa quality relative to the control. Transmission electron microscopy revealed that MitoQ protects the spermatozoa from undergoing ultrastructural alterations, but glycerol induced ultrastructural alterations during the vitrification process. Next, we performed label-free quantitative proteomics and identified 1,759 proteins, of which 69, 60, 90, and 81 were altered in the basal medium, 0.02 μM MitoQ, 1% glycerol, and Mito-glycerol groups, respectively. Actin, tubulins, and outer dense fiber proteins were not affected during the vitrification process. Some of the identified ubiquitinating enzymes were affected during spermatozoa vitrification. Only a few proteins responsible for phosphorylation were altered during vitrification. Similarly, several proteins involved in spermatozoa–egg fusion and fertilization (IZUMO1 and Tektin) were not affected during the vitrification process. In conclusion, MitoQ attenuates the vitrification-induced ultrastructural changes and alterations in the key proteins involved in spermatozoa functions and fertilization.
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Affiliation(s)
- Pradeep Kumar
- Department of Animal Physiology and Reproduction, ICAR-Central Institute for Research on Buffaloes, Hisar, India.,Department of Obstetrics and Gynaecology, Medical Faculty, Cologne University, Cologne, Germany
| | - Mengying Wang
- Department of Obstetrics and Gynaecology, Medical Faculty, Cologne University, Cologne, Germany
| | - Evgenia Isachenko
- Department of Obstetrics and Gynaecology, Medical Faculty, Cologne University, Cologne, Germany
| | - Gohar Rahimi
- Department of Obstetrics and Gynaecology, Medical Faculty, Cologne University, Cologne, Germany
| | - Peter Mallmann
- Department of Obstetrics and Gynaecology, Medical Faculty, Cologne University, Cologne, Germany
| | - Wanxue Wang
- Department of Obstetrics and Gynaecology, Medical Faculty, Cologne University, Cologne, Germany
| | | | - Vladimir Isachenko
- Department of Obstetrics and Gynaecology, Medical Faculty, Cologne University, Cologne, Germany
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148
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Federico M, De la Fuente S, Palomeque J, Sheu SS. The role of mitochondria in metabolic disease: a special emphasis on heart dysfunction. J Physiol 2021; 599:3477-3493. [PMID: 33932959 PMCID: PMC8424986 DOI: 10.1113/jp279376] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 03/18/2021] [Indexed: 01/10/2023] Open
Abstract
Metabolic diseases (MetDs) embrace a series of pathologies characterized by abnormal body glucose usage. The known diseases included in this group are metabolic syndrome, prediabetes and diabetes mellitus types 1 and 2. All of them are chronic pathologies that present metabolic disturbances and are classified as multi-organ diseases. Cardiomyopathy has been extensively described in diabetic patients without overt macrovascular complications. The heart is severely damaged during the progression of the disease; in fact, diabetic cardiomyopathies are the main cause of death in MetDs. Insulin resistance, hyperglycaemia and increased free fatty acid metabolism promote cardiac damage through mitochondria. These organelles supply most of the energy that the heart needs to beat and to control essential cellular functions, including Ca2+ signalling modulation, reactive oxygen species production and apoptotic cell death regulation. Several aspects of common mitochondrial functions have been described as being altered in diabetic cardiomyopathies, including impaired energy metabolism, compromised mitochondrial dynamics, deficiencies in Ca2+ handling, increases in reactive oxygen species production, and a higher probability of mitochondrial permeability transition pore opening. Therefore, the mitochondrial role in MetD-mediated heart dysfunction has been studied extensively to identify potential therapeutic targets for improving cardiac performance. Herein we review the cardiac pathology in metabolic syndrome, prediabetes and diabetes mellitus, focusing on the role of mitochondrial dysfunctions.
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Affiliation(s)
- Marilen Federico
- Centro de Investigaciones Cardiovasculares, CCT-La Plata-CONICET, Facultad de Cs. Medicas, UNLP, La Plata, Argentina
| | - Sergio De la Fuente
- Center for Translational Medicine, Department of Medicine, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA 19107 USA
| | - Julieta Palomeque
- Centro de Investigaciones Cardiovasculares, CCT-La Plata-CONICET, Facultad de Cs. Medicas, UNLP, La Plata, Argentina
- Centro de Altos Estudios en Ciencias Humanas y de la Salud, Universidad Abierta Interamericana, CABA, Argentina
| | - Shey-Shing Sheu
- Center for Translational Medicine, Department of Medicine, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA 19107 USA
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149
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Shi S, Liu Z, Wu Z, Zhou H, Lu J. Preparation and biological evaluation of radioiodine-labeled triphenylphosphine derivatives as mitochondrial targeting probes. J Labelled Comp Radiopharm 2021; 64:271-281. [PMID: 33870522 DOI: 10.1002/jlcr.3910] [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: 02/25/2021] [Revised: 04/12/2021] [Accepted: 04/13/2021] [Indexed: 11/08/2022]
Abstract
The positive-charged lipophilic triphenylphosphonium cations (TPPs+ ) have been served as mitochondrial targeting vehicles for the delivery of various probes. In this study, we developed a new method for the preparation of radioiodine-labeled TPPs+ . Four 125 I-labeled TPPs+ , [125 I] 9-[125 I] 12, were prepared from the corresponding triphenylphosphine phenylborate precursors of B 5-B 8 via an optimized copper-catalyzed one-step procedure in high radiochemical yield (>95%). After radio-HPLC purification, the final products could be obtained with high specific activity. Their physicochemical properties, in vitro cellular uptake, and ex vivo mice biodistribution were investigated. The results suggested the 125 I-labeled TPPs+ were lipophilic and could specifically accumulate in the mitochondrial-rich myocardial cells through the mitochondrial membrane potential.
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Affiliation(s)
- Shuyu Shi
- Key Laboratory of Radiopharmaceuticals, Beijing Normal University, Ministry of Education, Beijing, China
- College of Chemistry, Beijing Normal University, Beijing, China
| | - Zelan Liu
- Key Laboratory of Radiopharmaceuticals, Beijing Normal University, Ministry of Education, Beijing, China
- College of Chemistry, Beijing Normal University, Beijing, China
| | - Zhenmin Wu
- Key Laboratory of Radiopharmaceuticals, Beijing Normal University, Ministry of Education, Beijing, China
- College of Chemistry, Beijing Normal University, Beijing, China
| | - Hang Zhou
- Key Laboratory of Radiopharmaceuticals, Beijing Normal University, Ministry of Education, Beijing, China
- College of Chemistry, Beijing Normal University, Beijing, China
| | - Jie Lu
- Key Laboratory of Radiopharmaceuticals, Beijing Normal University, Ministry of Education, Beijing, China
- College of Chemistry, Beijing Normal University, Beijing, China
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150
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Szabo I, Zoratti M, Biasutto L. Targeting mitochondrial ion channels for cancer therapy. Redox Biol 2021; 42:101846. [PMID: 33419703 PMCID: PMC8113036 DOI: 10.1016/j.redox.2020.101846] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 12/19/2020] [Accepted: 12/21/2020] [Indexed: 12/12/2022] Open
Abstract
Pharmacological targeting of mitochondrial ion channels is emerging as a promising approach to eliminate cancer cells; as most of these channels are differentially expressed and/or regulated in cancer cells in comparison to healthy ones, this strategy may selectively eliminate the former. Perturbation of ion fluxes across the outer and inner membranes is linked to alterations of redox state, membrane potential and bioenergetic efficiency. This leads to indirect modulation of oxidative phosphorylation, which is/may be fundamental for both cancer and cancer stem cell survival. Furthermore, given the crucial contribution of mitochondria to intrinsic apoptosis, modulation of their ion channels leading to cytochrome c release may be of great advantage in case of resistance to drugs triggering apoptotic events upstream of the mitochondrial phase. In the present review, we give an overview of the known mitochondrial ion channels and of their modulators capable of killing cancer cells. In addition, we discuss state-of-the-art strategies using mitochondriotropic drugs or peptide-based approaches allowing a more efficient and selective targeting of mitochondrial ion channel-linked events.
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Affiliation(s)
- Ildiko Szabo
- Department of Biology, University of Padova, Italy; CNR Institute of Neurosciences, Padova, Italy.
| | | | - Lucia Biasutto
- CNR Institute of Neurosciences, Padova, Italy; Department of Biomedical Sciences, University of Padova, Italy
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