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Lamačová LJ, Trnka J. Chelating mitochondrial iron and copper: Recipes, pitfalls and promise. Mitochondrion 2024; 78:101903. [PMID: 38777220 DOI: 10.1016/j.mito.2024.101903] [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: 10/20/2023] [Revised: 05/10/2024] [Accepted: 05/15/2024] [Indexed: 05/25/2024]
Abstract
Iron and copper chelation therapy plays a crucial role in treating conditions associated with metal overload, such as hemochromatosis or Wilson's disease. However, conventional chelators face challenges in reaching the core of iron and copper metabolism - the mitochondria. Mitochondria-targeted chelators can specifically target and remove metal ions from mitochondria, showing promise in treating diseases linked to mitochondrial dysfunction, including neurodegenerative diseases and cancer. Additionally, they serve as specific mitochondrial metal sensors. However, designing these new molecules presents its own set of challenges. Depending on the chelator's intended use to prevent or to promote redox cycling of the metals, the chelating moiety must possess different donor atoms and an optimal value of the electrode potential of the chelator-metal complex. Various targeting moieties can be employed for selective delivery into the mitochondria. This review also provides an overview of the current progress in the design of mitochondria-targeted chelators and their biological activity investigation.
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Affiliation(s)
- Lucie J Lamačová
- Department of Biochemistry, Cell and Molecular Biology, Third Faculty of Medicine, Charles University, Ruská 87, 100 00 Praha, Czech Republic
| | - Jan Trnka
- Department of Biochemistry, Cell and Molecular Biology, Third Faculty of Medicine, Charles University, Ruská 87, 100 00 Praha, Czech Republic.
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Al-Suhaimi E, AlQuwaie R, AlSaqabi R, Winarni D, Dewi FRP, AlRubaish AA, Shehzad A, Elaissari A. Hormonal orchestra: mastering mitochondria's role in health and disease. Endocrine 2024:10.1007/s12020-024-03967-1. [PMID: 39172335 DOI: 10.1007/s12020-024-03967-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Accepted: 07/10/2024] [Indexed: 08/23/2024]
Abstract
Mitochondria is a subcellular organelle involved in the pathogenesis of cellular stress, immune responses, differentiation, metabolic disorders, aging, and death by regulating process of fission, fusion, mitophagy, and transport. However, an increased interest in mitochondria as powerhouse for ATP production, the mechanisms of mitochondria-mediated cellular dysfunction in response to hormonal interaction remains unknown. Mitochondrial matrix contains chaperones and proteases that regulate intrinsic apoptosis pathway through pro-apoptotic Bcl-2 family's proteins Bax/Bak, and Cyt C release, and induces caspase-dependent and independent cells death. Energy and growth regulators such as thyroid hormones have profound effect on mitochondrial inner membrane protein and lipid compositions, ATP production by regulating oxidative phosphorylation system. Mitochondria contain cholesterol side-chain cleavage enzyme, P450scc, ferredoxin, and ferredoxin reductase providing an essential site for steroid hormones biosynthesis. In line with this, neurohormones such as oxytocin, vasopressin, and melatonin are correlated with mitochondrial integrity, displaying therapeutic implications for inflammatory and immune responses. Melatonin's also displayed protective role against oxidative stress and mitochondrial synthesis of ROS, suggesting a defense mechanism against aging-related diseases. An imbalance in mitochondrial bioenergetics can cause neurodegenerative disorders, cardiovascular diseases, and cancers. Hormone-induced PGC-1α stimulates mitochondrial biogenesis via activation of NRF1 and NRF2, which in turn triggers mtTFA in brown adipose and cardiac myocytes. Mitochondria can be transferred through cells merging, exosome-mediated transfer, and tunneling through nanotubes. By delineating the underlying molecular mechanism of hormonal mitochondrial interaction, this study reviews the dynamics mechanisms of mitochondria and its effects on cellular level, health, diseases, and therapeutic strategies targeting mitochondrial diseases.
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Affiliation(s)
- Ebtesam Al-Suhaimi
- Vice presidency for Scientific Research and Innovation, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia.
- King Abdulaziz and his Companions Foundation for Giftedness and Creativity "Mawhiba", Riyadh, Saudi Arabia.
| | - Rahaf AlQuwaie
- Master Program of Biotechnology, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Reem AlSaqabi
- Master Program of Biotechnology, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Dwi Winarni
- Department of Biology, Faculty of Science and Technology, Universitas Airlangga, Surabaya, East Java, Indonesia
| | - Firli Rahmah Primula Dewi
- Department of Biology, Faculty of Science and Technology, Universitas Airlangga, Surabaya, East Java, Indonesia
| | - Abdullah A AlRubaish
- College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Adeeb Shehzad
- Biodiversity Unit, Research Center, Dhofar University, Salalah, Oman
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Kirsanov R, Khailova LS, Rokitskaya TI, Lyamzaev KG, Panteleeva AA, Nazarov PA, Firsov AM, Iaubasarova IR, Korshunova GA, Kotova EA, Antonenko YN. Synthesis of Triphenylphosphonium-Linked Derivative of 3,5-Di tert-butyl-4-hydroxybenzylidene-malononitrile (SF6847) via Knoevenagel Reaction Yields an Effective Mitochondria-Targeted Protonophoric Uncoupler. ACS OMEGA 2024; 9:11551-11561. [PMID: 38496966 PMCID: PMC10938414 DOI: 10.1021/acsomega.3c08621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 02/07/2024] [Accepted: 02/14/2024] [Indexed: 03/19/2024]
Abstract
Mitochondrial uncouplers are actively sought as potential therapeutics. Here, we report the first successful synthesis of mitochondria-targeted derivatives of the highly potent uncoupler 3,5-ditert-butyl-4-hydroxybenzylidene-malononitrile (SF6847), bearing a cationic alkyl(triphenyl)phosphonium (TPP) group. As a key step of the synthesis, we used condensation of a ketophenol with malononitrile via the Knoevenagel reaction. SF-C5-TPP with a pentamethylene linker between SF6847 and TPP, stimulating respiration and collapsing membrane potential of rat liver mitochondria at submicromolar concentrations, proved to be the most effective uncoupler of the series. SF-C5-TPP showed pronounced protonophoric activity on a model planar bilayer lipid membrane. Importantly, SF-C5-TPP exhibited rather low toxicity in fibroblast cell culture, causing mitochondrial depolarization in cells at concentrations that only slightly affected cell viability. SF-C5-TPP was more effective in decreasing the mitochondrial membrane potential in the cell culture than SF6847, in contrast to the case of isolated mitochondria. Like other zwitterionic uncouplers, SF-C5-TPP inhibited the growth of Bacillus subtilis in the micromolar concentration range.
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Affiliation(s)
- Roman
S. Kirsanov
- Belozersky
Institute of Physico-Chemical Biology, Lomonosov
Moscow State University, 119991 Moscow, Russia
| | - Ljudmila S. Khailova
- Belozersky
Institute of Physico-Chemical Biology, Lomonosov
Moscow State University, 119991 Moscow, Russia
| | - Tatyana I. Rokitskaya
- Belozersky
Institute of Physico-Chemical Biology, Lomonosov
Moscow State University, 119991 Moscow, Russia
| | - Konstantin G. Lyamzaev
- Belozersky
Institute of Physico-Chemical Biology, Lomonosov
Moscow State University, 119991 Moscow, Russia
- The
“Russian Clinical Research Center for Gerontology” of
the Ministry of Healthcare of the Russian Federation, Pirogov Russian National Research Medical University, 117997 Moscow, Russia
| | - Alisa A. Panteleeva
- Belozersky
Institute of Physico-Chemical Biology, Lomonosov
Moscow State University, 119991 Moscow, Russia
| | - Pavel A. Nazarov
- Belozersky
Institute of Physico-Chemical Biology, Lomonosov
Moscow State University, 119991 Moscow, Russia
| | - Alexander M. Firsov
- Belozersky
Institute of Physico-Chemical Biology, Lomonosov
Moscow State University, 119991 Moscow, Russia
| | - Iliuza R. Iaubasarova
- Belozersky
Institute of Physico-Chemical Biology, Lomonosov
Moscow State University, 119991 Moscow, Russia
| | - Galina A. Korshunova
- Belozersky
Institute of Physico-Chemical Biology, Lomonosov
Moscow State University, 119991 Moscow, Russia
| | - Elena A. Kotova
- Belozersky
Institute of Physico-Chemical Biology, Lomonosov
Moscow State University, 119991 Moscow, Russia
| | - Yuri N. Antonenko
- Belozersky
Institute of Physico-Chemical Biology, Lomonosov
Moscow State University, 119991 Moscow, Russia
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Romariz SAA, Sanabria V, da Silva KR, Quintella ML, de Melo BAG, Porcionatto M, de Almeida DC, Longo BM. High Concentrations of Cannabidiol Induce Neurotoxicity in Neurosphere Culture System. Neurotox Res 2024; 42:14. [PMID: 38349488 DOI: 10.1007/s12640-024-00692-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 12/30/2023] [Accepted: 01/30/2024] [Indexed: 02/15/2024]
Abstract
Recent studies have demonstrated that cannabinoids are potentially effective in the treatment of various neurological conditions, and cannabidiol (CBD), one of the most studied compounds, has been proposed as a non-toxic option. However, the adverse effects of CBD on neurodevelopmental processes have rarely been studied in cell culture systems. To better understand CBD's influence on neurodevelopment, we exposed neural progenitor cells (NPCs) to different concentrations of CBD (1 µM, 5 µM, and 10 µM). We assessed the morphology, migration, differentiation, cell death, and gene expression in 2D and 3D bioprinted models to stimulate physiological conditions more effectively. Our results showed that CBD was more toxic at higher concentrations (5 µM and 10 µM) and affected the viability of NPCs than at lower concentrations (1 µM), in both 2D and 3D models. Moreover, our study revealed that higher concentrations of CBD drastically reduced the size of neurospheres and the number of NPCs within neurospheres, impaired the morphology and mobility of neurons and astrocytes after differentiation, and reduced neurite sprouting. Interestingly, we also found that CBD alters cellular metabolism by influencing the expression of glycolytic and β-oxidative enzymes in the early and late stages of metabolic pathways. Therefore, our study demonstrated that higher concentrations of CBD promote important changes in cellular functions that are crucial during CNS development.
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Affiliation(s)
- Simone A A Romariz
- Department of Physiology, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Viviam Sanabria
- Department of Physiology, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Karina Ribeiro da Silva
- Department of Medicine, Nephrology Division, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Miguel L Quintella
- Department of Physiology, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Bruna A G de Melo
- Department of Biochemistry, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Marimélia Porcionatto
- Department of Biochemistry, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Danilo Candido de Almeida
- Department of Medicine, Nephrology Division, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Beatriz M Longo
- Department of Physiology, Universidade Federal de São Paulo, São Paulo, SP, Brazil.
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Stefàno E, Cossa LG, De Castro F, De Luca E, Vergaro V, My G, Rovito G, Migoni D, Muscella A, Marsigliante S, Benedetti M, Fanizzi FP. Evaluation of the Antitumor Effects of Platinum-Based [Pt( η1-C 2H 4-OR)(DMSO)(phen)] + (R = Me, Et) Cationic Organometallic Complexes on Chemoresistant Pancreatic Cancer Cell Lines. Bioinorg Chem Appl 2023; 2023:5564624. [PMID: 37727647 PMCID: PMC10506884 DOI: 10.1155/2023/5564624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/16/2023] [Accepted: 08/25/2023] [Indexed: 09/21/2023] Open
Abstract
Pancreatic cancer is one of the most lethal malignancies with an increasing incidence and a high mortality rate, due to its rapid progression, invasiveness, and resistance to anticancer therapies. In this work, we evaluated the antiproliferative and antimigratory activities of the two organometallic compounds, [Pt(η1-C2H4-OMe)(DMSO)(phen)]Cl (1) and [Pt(η1-C2H4-OEt)(DMSO)(phen)]Cl (2), on three human pancreatic ductal adenocarcinoma cell lines with different sensitivity to cisplatin (Mia PaCa-2, PANC-1, and YAPC). The two cationic analogues showed superimposable antiproliferative effects on the tested cells, without significant differences depending on alkyl chain length (Me or Et). On the other hand, they demonstrated to be more effective than cisplatin, especially on YAPC cancer cells. For the interesting cytotoxic activity observed on YAPC, further biological assays were performed, on this cancer cell line, to evaluate the apoptotic and antimetastatic properties of the considered platinum compounds (1 and 2). The cytotoxicity of 1 and 2 compounds appeared to be related to their intracellular accumulation, which was much faster than that of cisplatin. Both 1 and 2 compounds significantly induced apoptosis and cell cycle arrest, with a high accumulation of sub-G1 phase cells, compared to cisplatin. Moreover, phenanthroline-containing complexes caused a rapid loss of mitochondria membrane potential, ΔΨM, if compared to cisplatin, probably due to their cationic and lipophilic properties. On 3D tumor spheroids, 1 and 2 significantly reduced migrated area more than cisplatin, confirming an antimetastatic ability.
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Affiliation(s)
- Erika Stefàno
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Via Monteroni, I-73100 Lecce, Italy
| | - Luca Giulio Cossa
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Via Monteroni, I-73100 Lecce, Italy
| | - Federica De Castro
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Via Monteroni, I-73100 Lecce, Italy
| | - Erik De Luca
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Via Monteroni, I-73100 Lecce, Italy
| | - Viviana Vergaro
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Via Monteroni, I-73100 Lecce, Italy
| | - Giulia My
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Via Monteroni, I-73100 Lecce, Italy
| | - Gianluca Rovito
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Via Monteroni, I-73100 Lecce, Italy
| | - Danilo Migoni
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Via Monteroni, I-73100 Lecce, Italy
| | - Antonella Muscella
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Via Monteroni, I-73100 Lecce, Italy
| | - Santo Marsigliante
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Via Monteroni, I-73100 Lecce, Italy
| | - Michele Benedetti
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Via Monteroni, I-73100 Lecce, Italy
| | - Francesco Paolo Fanizzi
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Via Monteroni, I-73100 Lecce, Italy
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Cheng G, Karoui H, Hardy M, Kalyanaraman B. Redox-crippled MitoQ potently inhibits breast cancer and glioma cell proliferation: A negative control for verifying the antioxidant mechanism of MitoQ in cancer and other oxidative pathologies. Free Radic Biol Med 2023; 205:175-187. [PMID: 37321281 PMCID: PMC11129726 DOI: 10.1016/j.freeradbiomed.2023.06.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/01/2023] [Accepted: 06/13/2023] [Indexed: 06/17/2023]
Abstract
Mitochondria-targeted coenzyme Q10 (Mito-ubiquinone, Mito-quinone mesylate, or MitoQ) was shown to be an effective antimetastatic drug in patients with triple-negative breast cancer. MitoQ, sold as a nutritional supplement, prevents breast cancer recurrence. It potently inhibited tumor growth and tumor cell proliferation in preclinical xenograft models and in vitro breast cancer cells. The proposed mechanism of action involves the inhibition of reactive oxygen species by MitoQ via a redox-cycling mechanism between the oxidized form, MitoQ, and the fully reduced form, MitoQH2 (also called Mito-ubiquinol). To fully corroborate this antioxidant mechanism, we substituted the hydroquinone group (-OH) with the methoxy group (-OCH3). Unlike MitoQ, the modified form, dimethoxy MitoQ (DM-MitoQ), lacks redox-cycling between the quinone and hydroquinone forms. DM-MitoQ was not converted to MitoQ in MDA-MB-231 cells. We tested the antiproliferative effects of both MitoQ and DM-MitoQ in human breast cancer (MDA-MB-231), brain-homing cancer (MDA-MB-231BR), and glioma (U87MG) cells. Surprisingly, DM-MitoQ was slightly more potent than MitoQ (IC50 = 0.26 μM versus 0.38 μM) at inhibiting proliferation of these cells. Both MitoQ and DM-MitoQ potently inhibited mitochondrial complex I-dependent oxygen consumption (IC50 = 0.52 μM and 0.17 μM, respectively). This study also suggests that DM-MitoQ, which is a more hydrophobic analog of MitoQ (logP: 10.1 and 8.7) devoid of antioxidant function and reactive oxygen species scavenging ability, can inhibit cancer cell proliferation. We conclude that inhibition of mitochondrial oxidative phosphorylation by MitoQ is responsible for inhibition of breast cancer and glioma proliferation and metastasis. Blunting the antioxidant effect using the redox-crippled DM-MitoQ can serve as a useful negative control in corroborating the involvement of free radical-mediated processes (e.g., ferroptosis, protein oxidation/nitration) using MitoQ in other oxidative pathologies.
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Affiliation(s)
- Gang Cheng
- Department of Biophysics, 8701 Watertown Plank Road, Milwaukee, WI, 53226, United States
| | - Hakim Karoui
- Aix Marseille Univ, CNRS, ICR, UMR, 7273, Marseille, 13013, France
| | - Micael Hardy
- Aix Marseille Univ, CNRS, ICR, UMR, 7273, Marseille, 13013, France
| | - Balaraman Kalyanaraman
- Department of Biophysics, 8701 Watertown Plank Road, Milwaukee, WI, 53226, United States.
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