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Natallia L, Dama A, Gorica E, Darya K, Peña-Corona SI, Cortés H, Santini A, Büsselberg D, Leyva-Gómez G, Sharifi-Rad J. Genipin's potential as an anti-cancer agent: from phytochemical origins to clinical prospects. Med Oncol 2024; 41:186. [PMID: 38918260 DOI: 10.1007/s12032-024-02429-y] [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: 04/12/2024] [Accepted: 06/13/2024] [Indexed: 06/27/2024]
Abstract
This comprehensive review delves into the multifaceted aspects of genipin, a bioactive compound derived from medicinal plants, focusing on its anti-cancer potential. The review begins by detailing the sources and phytochemical properties of genipin, underscoring its significance in traditional medicine and its transition into contemporary cancer research. It then explores the intricate relationship between genipin's chemical structure and its observed anti-cancer activity, highlighting the molecular underpinnings contributing to its therapeutic potential. This is complemented by a thorough analysis of preclinical studies, which investigates genipin's efficacy against various cancer cell lines and its mechanisms of action at the cellular level. A crucial component of the review is the examination of genipin's bioavailability and pharmacokinetics, providing insights into how the compound is absorbed, distributed, metabolized, and excreted in the body. Then, this review offers a general and updated overview of the anti-cancer studies of genipin and its derivatives based on its basic molecular mechanisms, induction of apoptosis, inhibition of cell proliferation, and disruption of cancer cell signaling pathways. We include information that complements the genipin study, such as toxicity data, and we differentiate this review by including commercial status, disposition, and regulation. Also, this review of genipin stands out for incorporating information on proposals for a technological approach through its load in nanotechnology to improve its bioavailability. The culmination of this information positions genipin as a promising candidate for developing novel anti-cancer drugs capable of supplementing or enhancing current cancer therapies.
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Affiliation(s)
- Lapava Natallia
- Medicine Standardization Department of Vitebsk State Medical University, Vitebsk, Republic of Belarus.
| | - Aida Dama
- Department of Pharmacy, Faculty of Medical Sciences, Albanian University, Zogu I Blvd., 1001, Tirana, Albania
| | - Era Gorica
- Department of Pharmacy, Faculty of Medical Sciences, Albanian University, Zogu I Blvd., 1001, Tirana, Albania
- Center for Translational and Experimental Cardiology, University Hospital Zürich and University of Zürich, Wagistrasse 12, 8952, Schlieren, Zürich, Switzerland
| | - Karaliova Darya
- Medicine Standardization Department of Vitebsk State Medical University, Vitebsk, Republic of Belarus
| | - Sheila I Peña-Corona
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, 04510, Ciudad de Mexico, Mexico
| | - Hernán Cortés
- Laboratorio de Medicina Genómica, Departamento de Genómica, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de Mexico, Mexico
| | - Antonello Santini
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131, Napoli, Italy.
| | - Dietrich Büsselberg
- Weill Cornell Medicine-Qatar, Education City, Qatar Foundation, P.O. Box 24144, Doha, Qatar
| | - Gerardo Leyva-Gómez
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, 04510, Ciudad de Mexico, Mexico.
| | - Javad Sharifi-Rad
- Department of Biomedical Sciences, College of Medicine, Korea University, Seoul, Republic of Korea.
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2
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Caggiano EG, Taniguchi CM. UCP2 and pancreatic cancer: conscious uncoupling for therapeutic effect. Cancer Metastasis Rev 2024; 43:777-794. [PMID: 38194152 PMCID: PMC11156755 DOI: 10.1007/s10555-023-10157-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 11/13/2023] [Indexed: 01/10/2024]
Abstract
Pancreatic cancer has an exaggerated dependence on mitochondrial metabolism, but methods to specifically target the mitochondria without off target effects in normal tissues that rely on these organelles is a significant challenge. The mitochondrial uncoupling protein 2 (UCP2) has potential as a cancer-specific drug target, and thus, we will review the known biology of UCP2 and discuss its potential role in the pathobiology and future therapy of pancreatic cancer.
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Affiliation(s)
- Emily G Caggiano
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
- The University of Texas MD Anderson Cancer Center UTHealth Houston Graduate School of Biomedical Sciences, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
| | - Cullen M Taniguchi
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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3
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Hoogstraten CA, Schirris TJJ, Russel FGM. Unlocking mitochondrial drug targets: The importance of mitochondrial transport proteins. Acta Physiol (Oxf) 2024; 240:e14150. [PMID: 38666512 DOI: 10.1111/apha.14150] [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: 10/04/2023] [Revised: 03/02/2024] [Accepted: 04/12/2024] [Indexed: 05/12/2024]
Abstract
A disturbed mitochondrial function contributes to the pathology of many common diseases. These organelles are therefore important therapeutic targets. On the contrary, many adverse effects of drugs can be explained by a mitochondrial off-target effect, in particular, due to an interaction with carrier proteins in the inner membrane. Yet this class of transport proteins remains underappreciated and understudied. The aim of this review is to provide a deeper understanding of the role of mitochondrial carriers in health and disease and their significance as drug targets. We present literature-based evidence that mitochondrial carrier proteins are associated with prevalent diseases and emphasize their potential as drug (off-)target sites by summarizing known mitochondrial drug-transporter interactions. Studying these carriers will enhance our knowledge of mitochondrial drug on- and off-targets and provide opportunities to further improve the efficacy and safety of drugs.
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Affiliation(s)
- Charlotte A Hoogstraten
- Department of Pharmacy, Division of Pharmacology and Toxicology, Radboud University Medical Center, Nijmegen, the Netherlands
- Radboud Center for Mitochondrial Medicine, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Tom J J Schirris
- Department of Pharmacy, Division of Pharmacology and Toxicology, Radboud University Medical Center, Nijmegen, the Netherlands
- Radboud Center for Mitochondrial Medicine, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Frans G M Russel
- Department of Pharmacy, Division of Pharmacology and Toxicology, Radboud University Medical Center, Nijmegen, the Netherlands
- Radboud Center for Mitochondrial Medicine, Radboud University Medical Center, Nijmegen, the Netherlands
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4
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Ahmed R, Ul Ain Hira N, Wang M, Iqbal S, Yi J, Hemar Y. Genipin, a natural blue colorant precursor: Source, extraction, properties, and applications. Food Chem 2024; 434:137498. [PMID: 37741231 DOI: 10.1016/j.foodchem.2023.137498] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 09/12/2023] [Accepted: 09/13/2023] [Indexed: 09/25/2023]
Abstract
Natural cross-linkers are extensively employed due to their low toxicity and biocompatibility benefits. Genipin acts as a precursor for producing blue colorants. The formation of these colorants involves the cross-linking reaction between genipin and primary amines present in amino acids, peptides, and proteins. Genipin is extracted from Gardenia jasminoides and Genipa americana. This article explains the cross-linking mechanism of genipin with proteins/polysaccharides to provide an overall understanding of its properties. Furthermore, it explores new sources of genipin and innovative methodologies to make the genipin recovery process efficient. Genipin increases food products' texture, gel strength, stability, and shelf life. The antibacterial, anti-inflammatory, and antioxidant properties of chitosan, gelatin, alginate, and hyaluronic acid increased after genipin cross-linking. Lastly, drawbacks, toxicity, and directions regarding the genipin cross-linking have also been addressed. The review article covers how to recover and cross-link genipin with biopolymers for industrial applications.
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Affiliation(s)
- Rizwan Ahmed
- Department of Food Science and Engineering, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, China; Shenzhen Key Laboratory of Food Macromolecules Science and Processing, Shenzhen University, Shenzhen, Guangdong 518060, China; Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China; College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, China
| | - Noor Ul Ain Hira
- Department of Food Science and Engineering, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, China; Shenzhen Key Laboratory of Food Macromolecules Science and Processing, Shenzhen University, Shenzhen, Guangdong 518060, China
| | - Mingwei Wang
- State-Key Laboratory of Chemical Engineering and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Shahid Iqbal
- School of Chemical and Environmental Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu 215123, China
| | - Jiang Yi
- Department of Food Science and Engineering, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, China; Shenzhen Key Laboratory of Food Macromolecules Science and Processing, Shenzhen University, Shenzhen, Guangdong 518060, China.
| | - Yacine Hemar
- School of Natural Sciences, Massey University, Private Bag 11 222. Palmerston North, 4442, New Zealand
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Balakrishnan P, Arasu A, Velusamy T. Targeting altered calcium homeostasis and uncoupling protein-2 promotes sensitivity in drug-resistant breast cancer cells. J Biochem Mol Toxicol 2024; 38:e23575. [PMID: 37920924 DOI: 10.1002/jbt.23575] [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: 09/29/2022] [Revised: 10/15/2023] [Accepted: 10/18/2023] [Indexed: 11/04/2023]
Abstract
Metastatic breast cancer has the highest mortality rate among women owing to its poor clinical outcomes. Metastatic tumors pose challenges for treatment through conventional surgery or radiotherapy because of their diverse organ localization and resistance to various cytotoxic agents. Chemoresistance is a significant obstacle to effective breast cancer treatment owing to cancer's heterogeneous nature. Abnormalities in intracellular calcium signaling, coupled with altered mitochondrial metabolism, play a significant role in facilitating drug resistance and contribute to therapy resistance. Uncoupling protein-2 (UCP2) is considered as a marker of chemoresistance and is believed to play a major role in promoting metabolic shifts and tumor metastasis. In this context, it is imperative to understand the roles of altered calcium signaling and metabolic switching in the development of chemotherapeutic resistance. This study investigates the roles of UCP2 and intracellular calcium signaling (Ca2+ ) in promoting chemoresistance against cisplatin. Additionally, we explored the effectiveness of combining genipin (GP, a compound that reverses UCP2-mediated chemoresistance) and thapsigargin (TG, a calcium signaling modulator) in treating highly metastatic breast cancers. Our findings indicate that both aberrant Ca2+ signaling and metabolic shifts in cancer cells contribute to developing drug-resistant phenotypes, and the combination treatment of GP and TG significantly enhances drug sensitivity in these cells. Collectively, our study underscores the potential of these drug combinations as an effective approach to overcome drug resistance in chemoresistant cancers.
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Affiliation(s)
- Pavithra Balakrishnan
- Department of Biotechnology, School of Biotechnology and Genetic Engineering, Bharathiar University, Coimbatore, India
| | - Ashok Arasu
- Department of Biotechnology, School of Biotechnology and Genetic Engineering, Bharathiar University, Coimbatore, India
| | - Thirunavukkarasu Velusamy
- Department of Biotechnology, School of Biotechnology and Genetic Engineering, Bharathiar University, Coimbatore, India
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6
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Luby A, Alves-Guerra MC. UCP2 as a Cancer Target through Energy Metabolism and Oxidative Stress Control. Int J Mol Sci 2022; 23:ijms232315077. [PMID: 36499405 PMCID: PMC9735768 DOI: 10.3390/ijms232315077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 11/25/2022] [Accepted: 11/27/2022] [Indexed: 12/02/2022] Open
Abstract
Despite numerous therapies, cancer remains one of the leading causes of death worldwide due to the lack of markers for early detection and response to treatment in many patients. Technological advances in tumor screening and renewed interest in energy metabolism have allowed us to identify new cellular players in order to develop personalized treatments. Among the metabolic actors, the mitochondrial transporter uncoupling protein 2 (UCP2), whose expression is increased in many cancers, has been identified as an interesting target in tumor metabolic reprogramming. Over the past decade, a better understanding of its biochemical and physiological functions has established a role for UCP2 in (1) protecting cells from oxidative stress, (2) regulating tumor progression through changes in glycolytic, oxidative and calcium metabolism, and (3) increasing antitumor immunity in the tumor microenvironment to limit cancer development. With these pleiotropic roles, UCP2 can be considered as a potential tumor biomarker that may be interesting to target positively or negatively, depending on the type, metabolic status and stage of tumors, in combination with conventional chemotherapy or immunotherapy to control tumor development and increase response to treatment. This review provides an overview of the latest published science linking mitochondrial UCP2 activity to the tumor context.
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7
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Wang L, Chaudhari K, Winters A, Sun Y, Liu R, Yang SH. Characterizing region-specific glucose metabolic profile of the rodent brain using Seahorse XFe96 analyzer. J Cereb Blood Flow Metab 2022; 42:1259-1271. [PMID: 35078350 PMCID: PMC9207488 DOI: 10.1177/0271678x221077341] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The brain is highly complex with diverse structural characteristics in accordance with specific functions. Accordingly, differences in regional function, cellular compositions, and active metabolic pathways may link to differences in glucose metabolism at different brain regions. In the current study, we optimized an acute biopsy punching method and characterized region-specific glucose metabolism of rat and mouse brain by a Seahorse XFe96 analyzer. We demonstrated that 0.5 mm diameter tissue punches from 180-µm thick brain sections allow metabolic measurements of anatomically defined brain structures using Seahorse XFe96 analyzer. Our result indicated that the cerebellum displays a more quiescent phenotype of glucose metabolism than cerebral cortex, basal ganglia, and hippocampus. In addition, the cerebellum has higher AMPK activation than other brain regions evidenced by the expression of pAMPK, upstream pLKB1, and downstream pACC. Furthermore, rodent brain has relatively low mitochondrial oxidative phosphorylation efficiency with up to 30% of respiration linked to proton leak. In summary, our study discovered region-specific glucose metabolic profile and relative high proton leak coupled respiration in the brain. Our study warrants future research on spatial mapping of the brain glucose metabolism in physiological and pathological conditions and exploring the mechanisms and significance of mitochondrial uncoupling in the brain.
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Affiliation(s)
- Linshu Wang
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Kiran Chaudhari
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Ali Winters
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Yuanhong Sun
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Ran Liu
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Shao-Hua Yang
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, USA
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8
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Genipin, an Inhibitor of UCP2 as a Promising New Anticancer Agent: A Review of the Literature. Int J Mol Sci 2022; 23:ijms23105637. [PMID: 35628447 PMCID: PMC9147402 DOI: 10.3390/ijms23105637] [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: 04/08/2022] [Revised: 05/15/2022] [Accepted: 05/17/2022] [Indexed: 12/29/2022] Open
Abstract
Genipin is a protein cross-linking agent extracted from Gardenia (Gardenia jasminoides Ellis) fruits. This fruit has conventionally been used as a Chinese herbal medicine for the treatment of inflammation and jaundice and as an edible colorant in oriental countries. Uncoupling protein (UCP)-2 is a member of the family of uncoupling proteins, which are anion transporters positioned in the mitochondrial inner membrane. Genipin has been shown to have hepatoprotective activity, acting as an effective antioxidant and inhibitor of mitochondrial UCP2, and is also reported to exert significant anticancer effects. In this review, the author presents the latest progress of genipin as an anticancer agent and concisely describes its various mechanisms of action. In brief, genipin inhibits UCP2 to attenuate generation of reactive oxygen species (ROS), leading to ROS/c-Jun N-terminal kinase-dependent apoptosis of cancer cells. Genipin also increases the tissue inhibitors of matrix metalloproteases (MMP)-2, a kind of tumor promoter in a variety of cancers, as well as induces caspase-dependent apoptosis in in vitro and in vivo models. These findings suggest that genipin can serve as a promising novel antitumor agent that could be applicable for chemotherapy and/or chemoprevention for cancers.
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9
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Song L, Yin H, Han R, Li J, Ma N, Wang Y, Guo H. Metabolism of Du Zhong Formula in rats using UPLC-Q-TOF/MS. JOURNAL OF MASS SPECTROMETRY : JMS 2022; 57:e4795. [PMID: 34913224 DOI: 10.1002/jms.4795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 10/29/2021] [Accepted: 11/02/2021] [Indexed: 06/14/2023]
Abstract
Du Zhong Formula (DZF), a traditional Chinese medicine formula derived from BeiJiQianJinYaoFang, is used to treat kidney deficiency and lumbago. In this study, ultra-high-performance liquid chromatography quadrupole time-of-flight mass spectrometer (UPLC-Q-TOF/MS) technique combined with pattern recognition analysis was applied for analysis of metabolic profiles of the bioactive components of the DZF in rat biological samples. In this experiment, a total of 73 compounds, including 53 prototype components and 20 metabolites, were identified tentatively in vivo compared with blank urine, plasma, feces, and cerebrospinal fluid (CSF). The prototype ingredients in DZF include terpenoids, gingerols, phenylpropanoids, alkaloids, phenanthrenes, bibenzyls, organic acids, and other ingredients. The metabolic pathways of DZF involved reduction, demethylation, hydroxylation, desugarization, deoxygenation, glucuronidation, sulfation, and methylation. The proposed method could develop an integrated template approach to analyze screening and identification of the bioactive components in plasma, urine, feces, and CSF after oral administration of herb medicines. Additionally, this investigation might provide helpful chemical information for further pharmacology and activity mechanism of DZF.
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Affiliation(s)
- Lili Song
- School of Traditional Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Hongqing Yin
- School of Traditional Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Rui Han
- School of Traditional Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Jingfang Li
- School of Traditional Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Ningning Ma
- School of Traditional Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yan Wang
- College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Hong Guo
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Key Laboratory of Formula of Traditional Chinese Medicine, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
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10
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Mitochondrial Uncoupling Proteins (UCPs) as Key Modulators of ROS Homeostasis: A Crosstalk between Diabesity and Male Infertility? Antioxidants (Basel) 2021; 10:antiox10111746. [PMID: 34829617 PMCID: PMC8614977 DOI: 10.3390/antiox10111746] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/27/2021] [Accepted: 10/28/2021] [Indexed: 12/14/2022] Open
Abstract
Uncoupling proteins (UCPs) are transmembrane proteins members of the mitochondrial anion transporter family present in the mitochondrial inner membrane. Currently, six homologs have been identified (UCP1-6) in mammals, with ubiquitous tissue distribution and multiple physiological functions. UCPs are regulators of key events for cellular bioenergetic metabolism, such as membrane potential, metabolic efficiency, and energy dissipation also functioning as pivotal modulators of ROS production and general cellular redox state. UCPs can act as proton channels, leading to proton re-entry the mitochondrial matrix from the intermembrane space and thus collapsing the proton gradient and decreasing the membrane potential. Each homolog exhibits its specific functions, from thermogenesis to regulation of ROS production. The expression and function of UCPs are intimately linked to diabesity, with their dysregulation/dysfunction not only associated to diabesity onset, but also by exacerbating oxidative stress-related damage. Male infertility is one of the most overlooked diabesity-related comorbidities, where high oxidative stress takes a major role. In this review, we discuss in detail the expression and function of the different UCP homologs. In addition, the role of UCPs as key regulators of ROS production and redox homeostasis, as well as their influence on the pathophysiology of diabesity and potential role on diabesity-induced male infertility is debated.
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11
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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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12
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Li W, Li J, Xu Y, Huang Y, Xu S, Ou Z, Long X, Li X, Liu X, Xiao Z, Huang J, Chen W. Expression of heat-resistant β-glucosidase in Escherichia coli and its application in the production of gardenia blue. Synth Syst Biotechnol 2021; 6:216-223. [PMID: 34504963 PMCID: PMC8390534 DOI: 10.1016/j.synbio.2021.08.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/02/2021] [Accepted: 08/11/2021] [Indexed: 01/08/2023] Open
Abstract
Gardenia blue is a natural blue pigment that is environmentally friendly, non-toxic, and stable. The hydrolysis of geniposide, catalyzed by β-glucosidase, is a critical step in the production process of gardenia blue. However, β-glucosidase is not resistant to high temperatures, limiting the production of gardenia blue. In this study, we investigated the effectiveness of a heat-resistant glucosidase obtained from Thermotoga maritima in the production of gardenia blue. The enzyme exhibited a maximum activity of 10.60 U/mL at 90 °C. Single-factor and orthogonal analyses showed that exogenously expressed heat-resistant glucosidase reacted with 470.3 μg/mL geniposide and 13.5 μg/mL glycine at 94.2 °C, producing a maximum yield of 26.2857 μg/mL of gardenia blue after 156.6 min. When applied to the dyeing of denim, gardenia blue produced by this method yielded excellent results; the best color-fastness was achieved when an iron ion mordant was used. This study revealed the feasibility and application potential of microbial production of gardenia blue.
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Affiliation(s)
- Wenxi Li
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060, China
| | - Jielin Li
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060, China
| | - Ying Xu
- College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Yan Huang
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060, China
| | - Shuqi Xu
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060, China
| | - Zirui Ou
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060, China
| | - Xiaoli Long
- Health Science Center School of Biomedical Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Xinyu Li
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060, China
| | - Xinyu Liu
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060, China
| | - Zening Xiao
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060, China
| | - Jiaqi Huang
- College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Weizhao Chen
- Shenzhen Key Laboratory for Microbial Gene Engineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060, China
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13
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McGuirk S, Audet-Delage Y, Annis MG, Xue Y, Vernier M, Zhao K, St-Louis C, Minarrieta L, Patten DA, Morin G, Greenwood CM, Giguère V, Huang S, Siegel PM, St-Pierre J. Resistance to different anthracycline chemotherapeutics elicits distinct and actionable primary metabolic dependencies in breast cancer. eLife 2021; 10:65150. [PMID: 34181531 PMCID: PMC8238502 DOI: 10.7554/elife.65150] [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: 11/24/2020] [Accepted: 06/12/2021] [Indexed: 12/18/2022] Open
Abstract
Chemotherapy resistance is a critical barrier in cancer treatment. Metabolic adaptations have been shown to fuel therapy resistance; however, little is known regarding the generality of these changes and whether specific therapies elicit unique metabolic alterations. Using a combination of metabolomics, transcriptomics, and functional genomics, we show that two anthracyclines, doxorubicin and epirubicin, elicit distinct primary metabolic vulnerabilities in human breast cancer cells. Doxorubicin-resistant cells rely on glutamine to drive oxidative phosphorylation and de novo glutathione synthesis, while epirubicin-resistant cells display markedly increased bioenergetic capacity and mitochondrial ATP production. The dependence on these distinct metabolic adaptations is revealed by the increased sensitivity of doxorubicin-resistant cells and tumor xenografts to buthionine sulfoximine (BSO), a drug that interferes with glutathione synthesis, compared with epirubicin-resistant counterparts that are more sensitive to the biguanide phenformin. Overall, our work reveals that metabolic adaptations can vary with therapeutics and that these metabolic dependencies can be exploited as a targeted approach to treat chemotherapy-resistant breast cancer.
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Affiliation(s)
- Shawn McGuirk
- Department of Biochemistry, Faculty of Medicine, McGill University, Montreal, Canada.,Goodman Cancer Research Centre, McGill University, Montreal, Canada
| | - Yannick Audet-Delage
- Department of Biochemistry, Microbiology, and Immunology, University of Ottawa, Ottawa, Canada.,Ottawa Institute of Systems Biology, Ottawa, Canada
| | - Matthew G Annis
- Goodman Cancer Research Centre, McGill University, Montreal, Canada.,Department of Medicine, Faculty of Medicine, McGill University, Montreal, Canada
| | - Yibo Xue
- Department of Biochemistry, Faculty of Medicine, McGill University, Montreal, Canada.,Goodman Cancer Research Centre, McGill University, Montreal, Canada
| | - Mathieu Vernier
- Goodman Cancer Research Centre, McGill University, Montreal, Canada
| | - Kaiqiong Zhao
- Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, Canada.,Lady Davis Institute, Jewish General Hospital, Montreal, Canada
| | - Catherine St-Louis
- Department of Biochemistry, Microbiology, and Immunology, University of Ottawa, Ottawa, Canada.,Ottawa Institute of Systems Biology, Ottawa, Canada
| | - Lucía Minarrieta
- Department of Biochemistry, Microbiology, and Immunology, University of Ottawa, Ottawa, Canada.,Ottawa Institute of Systems Biology, Ottawa, Canada
| | - David A Patten
- Department of Biochemistry, Microbiology, and Immunology, University of Ottawa, Ottawa, Canada.,Ottawa Institute of Systems Biology, Ottawa, Canada
| | - Geneviève Morin
- Department of Biochemistry, Faculty of Medicine, McGill University, Montreal, Canada.,Goodman Cancer Research Centre, McGill University, Montreal, Canada
| | - Celia Mt Greenwood
- Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, Canada.,Lady Davis Institute, Jewish General Hospital, Montreal, Canada.,Department of Human Genetics, McGill University, Montreal, Canada.,Gerald Bronfman Department of Oncology, Montreal, Canada
| | - Vincent Giguère
- Department of Biochemistry, Faculty of Medicine, McGill University, Montreal, Canada.,Goodman Cancer Research Centre, McGill University, Montreal, Canada
| | - Sidong Huang
- Department of Biochemistry, Faculty of Medicine, McGill University, Montreal, Canada.,Goodman Cancer Research Centre, McGill University, Montreal, Canada
| | - Peter M Siegel
- Goodman Cancer Research Centre, McGill University, Montreal, Canada.,Department of Medicine, Faculty of Medicine, McGill University, Montreal, Canada
| | - Julie St-Pierre
- Department of Biochemistry, Faculty of Medicine, McGill University, Montreal, Canada.,Goodman Cancer Research Centre, McGill University, Montreal, Canada.,Department of Biochemistry, Microbiology, and Immunology, University of Ottawa, Ottawa, Canada.,Ottawa Institute of Systems Biology, Ottawa, Canada
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14
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Natural blue food colorants: Consumer acceptance, current alternatives, trends, challenges, and future strategies. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.03.023] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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15
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Natural blue food colorants: Consumer acceptance, current alternatives, trends, challenges, and future strategies. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.03.023%0a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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16
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Lee JH, Cho YS, Jung KH, Park JW, Lee KH. Genipin enhances the antitumor effect of elesclomol in A549 lung cancer cells by blocking uncoupling protein-2 and stimulating reactive oxygen species production. Oncol Lett 2020; 20:374. [PMID: 33154772 PMCID: PMC7608048 DOI: 10.3892/ol.2020.12237] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 09/28/2020] [Indexed: 01/09/2023] Open
Abstract
The uncoupling protein-2 (UCP2) serves a role in tumor aggressiveness and anticancer resistance, which is considered to be associated with its ability to attenuate reactive oxygen species (ROS) production. We hypothesized that UCP2 may protect cancer cells from elesclomol-induced cytotoxicity, and that this may be overcome by blocking UCP2 function with genipin. In A549 lung cancer cells that exhibited high UCP2 expression, treatment with elesclomol alone induced limited changes in glucose uptake, ROS production and cell survival. By contrast, both UCP2 knockdown and genipin treatment mildly reduced glucose uptake, increased ROS production and decreased cell survival. Combining genipin and elesclomol further reduced glucose uptake and increased cellular and mitochondrial ROS production. Moreover, co-treatment with genipin and elesclomol reduced the colony forming capacity to 50.6±7.4% and the cell survival to 42.0±3.4% of that in the control cells (both P<0.001). Suppression of cell survival by treatment with elesclomol and genipin was enhanced in the presence of an exogenous ROS inducer and attenuated by a ROS scavenger. The cytotoxic effects of combining genipin and elesclomol were accompanied by reduced mitochondrial membrane potential and occurred through apoptosis as demonstrated by Annexin V assay and increased protein cleavage of PARP and caspase-3. Finally, in an A549 ×enograft mouse model, tumor growth was only modestly retarded by treatment with elesclomol or genipin alone, but was markedly suppressed by combining the two drugs compared with that in the control group (P=0.008). Therefore, high UCP2 expression may limit the antitumor effect of elesclomol by attenuating ROS responses, and this may be overcome by co-treatment with genipin; combining elesclomol and genipin may be an effective strategy for treating cancers with high UCP2.
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Affiliation(s)
- Jin Hee Lee
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Republic of Korea.,Department of Health Sciences and Technology, Samsung Advanced Institute of Health Sciences and Technology, Sungkyunkwan University, Seoul 06351, Republic of Korea
| | - Young Seok Cho
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Republic of Korea
| | - Kyung-Ho Jung
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Republic of Korea.,Department of Health Sciences and Technology, Samsung Advanced Institute of Health Sciences and Technology, Sungkyunkwan University, Seoul 06351, Republic of Korea
| | - Jin Won Park
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Republic of Korea.,Department of Health Sciences and Technology, Samsung Advanced Institute of Health Sciences and Technology, Sungkyunkwan University, Seoul 06351, Republic of Korea
| | - Kyung-Han Lee
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Republic of Korea.,Department of Health Sciences and Technology, Samsung Advanced Institute of Health Sciences and Technology, Sungkyunkwan University, Seoul 06351, Republic of Korea
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17
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Aguilar E, Esteves P, Sancerni T, Lenoir V, Aparicio T, Bouillaud F, Dentin R, Prip-Buus C, Ricquier D, Pecqueur C, Guilmeau S, Alves-Guerra MC. UCP2 Deficiency Increases Colon Tumorigenesis by Promoting Lipid Synthesis and Depleting NADPH for Antioxidant Defenses. Cell Rep 2020; 28:2306-2316.e5. [PMID: 31461648 PMCID: PMC6718829 DOI: 10.1016/j.celrep.2019.07.097] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 07/01/2019] [Accepted: 07/25/2019] [Indexed: 12/16/2022] Open
Abstract
Colorectal cancer (CRC) is associated with metabolic and redox perturbation. The mitochondrial transporter uncoupling protein 2 (UCP2) controls cell proliferation in vitro through the modulation of cellular metabolism, but the underlying mechanism in tumors in vivo remains unexplored. Using murine intestinal cancer models and CRC patient samples, we find higher UCP2 protein levels in tumors compared to their non-tumoral counterparts. We reveal the tumor-suppressive role of UCP2 as its deletion enhances colon and small intestinal tumorigenesis in AOM/DSS-treated and ApcMin/+ mice, respectively, and correlates with poor survival in the latter model. Mechanistically, UCP2 loss increases levels of oxidized glutathione and proteins in tumors. UCP2 deficiency alters glycolytic pathways while promoting phospholipid synthesis, thereby limiting the availability of NADPH for buffering oxidative stress. We show that UCP2 loss renders colon cells more prone to malignant transformation through metabolic reprogramming and perturbation of redox homeostasis and could favor worse outcomes in CRC. UCP2 protein expression, but not mRNA, is increased in CRC in both mice and humans UCP2 loss promotes AOM/DSS-induced CAC and ApcMin-dependent intestinal cancer UCP2 loss-induced oxidative stress contributes to increased colon tumorigenesis UCP2 deficiency drives an imbalance between lipid metabolism and NADPH homeostasis
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Affiliation(s)
- Esther Aguilar
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France
| | - Pauline Esteves
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France
| | - Tiphaine Sancerni
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France; Université Paris Diderot, Sorbonne Paris Cité, 75205 Paris Cedex 13, France
| | - Véronique Lenoir
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France
| | - Thomas Aparicio
- Hôpital Avicenne, HUPSSD, APHP, Université Paris 13, 93000 Bobigny, France
| | - Frédéric Bouillaud
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France
| | - Renaud Dentin
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France
| | - Carina Prip-Buus
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France
| | - Daniel Ricquier
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France
| | - Claire Pecqueur
- CRCINA - INSERM U1232, Université de Nantes, 44007 Nantes, France
| | - Sandra Guilmeau
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France
| | - Marie-Clotilde Alves-Guerra
- INSERM U1016, Institut Cochin, 75014 Paris, France; CNRS UMR 8104, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France.
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18
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Novel Therapeutic Approaches of Ion Channels and Transporters in Cancer. Rev Physiol Biochem Pharmacol 2020; 183:45-101. [PMID: 32715321 DOI: 10.1007/112_2020_28] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The expression and function of many ion channels and transporters in cancer cells display major differences in comparison to those from healthy cells. These differences provide the cancer cells with advantages for tumor development. Accordingly, targeting ion channels and transporters have beneficial anticancer effects including inhibition of cancer cell proliferation, migration, invasion, metastasis, tumor vascularization, and chemotherapy resistance, as well as promoting apoptosis. Some of the molecular mechanisms associating ion channels and transporters with cancer include the participation of oxidative stress, immune response, metabolic pathways, drug synergism, as well as noncanonical functions of ion channels. This diversity of mechanisms offers an exciting possibility to suggest novel and more effective therapeutic approaches to fight cancer. Here, we review and discuss most of the current knowledge suggesting novel therapeutic approaches for cancer therapy targeting ion channels and transporters. The role and regulation of ion channels and transporters in cancer provide a plethora of exceptional opportunities in drug design, as well as novel and promising therapeutic approaches that may be used for the benefit of cancer patients.
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19
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Diaz-Vegas A, Sanchez-Aguilera P, Krycer JR, Morales PE, Monsalves-Alvarez M, Cifuentes M, Rothermel BA, Lavandero S. Is Mitochondrial Dysfunction a Common Root of Noncommunicable Chronic Diseases? Endocr Rev 2020; 41:5807952. [PMID: 32179913 PMCID: PMC7255501 DOI: 10.1210/endrev/bnaa005] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Accepted: 03/12/2020] [Indexed: 12/19/2022]
Abstract
Mitochondrial damage is implicated as a major contributing factor for a number of noncommunicable chronic diseases such as cardiovascular diseases, cancer, obesity, and insulin resistance/type 2 diabetes. Here, we discuss the role of mitochondria in maintaining cellular and whole-organism homeostasis, the mechanisms that promote mitochondrial dysfunction, and the role of this phenomenon in noncommunicable chronic diseases. We also review the state of the art regarding the preclinical evidence associated with the regulation of mitochondrial function and the development of current mitochondria-targeted therapeutics to treat noncommunicable chronic diseases. Finally, we give an integrated vision of how mitochondrial damage is implicated in these metabolic diseases.
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Affiliation(s)
- Alexis Diaz-Vegas
- Advanced Center for Chronic Diseases (ACCDiS), Facultad de Ciencias Químicas y Farmacéuticas & Facultad de Medicina, Universidad de Chile, Santiago, Chile.,Charles Perkins Centre, School of Life and Environmental Sciences, The University of Sydney, Camperdown, Sydney, NSW, Australia
| | - Pablo Sanchez-Aguilera
- Advanced Center for Chronic Diseases (ACCDiS), Facultad de Ciencias Químicas y Farmacéuticas & Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - James R Krycer
- Charles Perkins Centre, School of Life and Environmental Sciences, The University of Sydney, Camperdown, Sydney, NSW, Australia
| | - Pablo E Morales
- Advanced Center for Chronic Diseases (ACCDiS), Facultad de Ciencias Químicas y Farmacéuticas & Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Matías Monsalves-Alvarez
- Advanced Center for Chronic Diseases (ACCDiS), Facultad de Ciencias Químicas y Farmacéuticas & Facultad de Medicina, Universidad de Chile, Santiago, Chile.,Institute of Nutrition and Food Technology (INTA), Universidad de Chile, Santiago, Chile
| | - Mariana Cifuentes
- Advanced Center for Chronic Diseases (ACCDiS), Facultad de Ciencias Químicas y Farmacéuticas & Facultad de Medicina, Universidad de Chile, Santiago, Chile.,Institute of Nutrition and Food Technology (INTA), Universidad de Chile, Santiago, Chile.,Center for Studies of Exercise, Metabolism and Cancer (CEMC), Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Beverly A Rothermel
- Department of Internal Medicine (Cardiology Division), University of Texas Southwestern Medical Center, Dallas, Texas
| | - Sergio Lavandero
- Advanced Center for Chronic Diseases (ACCDiS), Facultad de Ciencias Químicas y Farmacéuticas & Facultad de Medicina, Universidad de Chile, Santiago, Chile.,Department of Internal Medicine (Cardiology Division), University of Texas Southwestern Medical Center, Dallas, Texas.,Center for Studies of Exercise, Metabolism and Cancer (CEMC), Facultad de Medicina, Universidad de Chile, Santiago, Chile
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20
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Robinson AJ, Hopkins GL, Rastogi N, Hodges M, Doyle M, Davies S, Hole PS, Omidvar N, Darley RL, Tonks A. Reactive Oxygen Species Drive Proliferation in Acute Myeloid Leukemia via the Glycolytic Regulator PFKFB3. Cancer Res 2020; 80:937-949. [PMID: 31862780 PMCID: PMC7611211 DOI: 10.1158/0008-5472.can-19-1920] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 11/15/2019] [Accepted: 12/17/2019] [Indexed: 02/07/2023]
Abstract
Acute myeloid leukemia (AML) is a heterogeneous clonal disorder with a poor clinical outcome. Previously, we showed that overproduction of reactive oxygen species (ROS), arising from constitutive activation of NOX2 oxidase, occurs in >60% of patients with AML and that ROS production promotes proliferation of AML cells. We show here that the process most significantly affected by ROS overproduction is glycolysis. Whole metabolome analysis of 20 human primary AML showed that blasts generating high levels of ROS have increased glucose uptake and correspondingly increased glucose metabolism. In support of this, exogenous ROS increased glucose consumption while inhibition of NOX2 oxidase decreased glucose consumption. Mechanistically, ROS promoted uncoupling protein 2 (UCP2) protein expression and phosphorylation of AMPK, upregulating the expression of a key regulatory glycolytic enzyme, 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase (PFKFB3). Overexpression of PFKFB3 promoted glucose uptake and cell proliferation, whereas downregulation of PFKFB3 strongly suppressed leukemia growth both in vitro and in vivo in the NSG model. These experiments provide direct evidence that oxidase-derived ROS promotes the growth of leukemia cells via the glycolytic regulator PFKFB3. Targeting PFKFB3 may therefore present a new mode of therapy for this disease with a poor outcome. SIGNIFICANCE: These findings show that ROS generated by NOX2 in AML cells promotes glycolysis by activating PFKFB3 and suggest PFKFB3 as a novel therapeutic target in AML.
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Affiliation(s)
- Andrew J Robinson
- Department of Haematology, Division of Cancer & Genetics, School of Medicine, Cardiff University, Wales, United Kingdom
| | - Goitseone L Hopkins
- Department of Haematology, Division of Cancer & Genetics, School of Medicine, Cardiff University, Wales, United Kingdom
| | - Namrata Rastogi
- Department of Haematology, Division of Cancer & Genetics, School of Medicine, Cardiff University, Wales, United Kingdom
| | - Marie Hodges
- Department of Haematology, Division of Cancer & Genetics, School of Medicine, Cardiff University, Wales, United Kingdom
- Cardiff Experimental and Cancer Medicine Centre (ECMC), School of Medicine, Cardiff University, Wales, United Kingdom
| | - Michelle Doyle
- Department of Haematology, Division of Cancer & Genetics, School of Medicine, Cardiff University, Wales, United Kingdom
- Cardiff Experimental and Cancer Medicine Centre (ECMC), School of Medicine, Cardiff University, Wales, United Kingdom
| | - Sara Davies
- Department of Haematology, Division of Cancer & Genetics, School of Medicine, Cardiff University, Wales, United Kingdom
| | - Paul S Hole
- Department of Haematology, Division of Cancer & Genetics, School of Medicine, Cardiff University, Wales, United Kingdom
| | - Nader Omidvar
- Department of Haematology, Division of Cancer & Genetics, School of Medicine, Cardiff University, Wales, United Kingdom
| | - Richard L Darley
- Department of Haematology, Division of Cancer & Genetics, School of Medicine, Cardiff University, Wales, United Kingdom
| | - Alex Tonks
- Department of Haematology, Division of Cancer & Genetics, School of Medicine, Cardiff University, Wales, United Kingdom.
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21
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In vitro bioactivity approach of unripe genipap (Genipa americana L., Rubiaceae) fruit extract and its solid lipid microparticle. Food Res Int 2019; 127:108720. [PMID: 31882083 DOI: 10.1016/j.foodres.2019.108720] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 09/23/2019] [Accepted: 09/28/2019] [Indexed: 11/23/2022]
Abstract
Growing awareness in favor of innovative and healthier alternatives is creating a noticeable shift from synthetic colorants to natural additives. And, such a swing in the consumer market is growing slowly but noticeably. In this context, genipap (Genipa americana L.) fruit represents an emerging source of blue colorants in Latin America with extensive application possibilities. This is despite the fact that there are few studies concerning its toxicity predictive factors. In this early-stage study we propose to investigate safety issues around genipap extract (IBBP); we also attempt to identify fingerprint profiling of both IBBP extract and solid lipid microparticles containing IBBP extract (SLM-IBBP) using in vitro assays. The main compounds identified were genipin, and genipin 1-β-gentiobioside. Results indicated that IBBP extract, at 25 µg/mL, was able to promote DNA damage in CHO-K1 cells, suggesting a genotoxic effect. On the other hand, the SLM-IBBP inhibited almost all cancer cell lines with GI50 ranging from 0.25 μg/mL to 43.5 μg/mL. Also, IBBP-SLM seems to exert a desirable apoptosis induction (at 25 µg/mL dosage). The next steps for our work, therefore, will focus on other nanoparticle formulation approaches, in particular with the use of natural Brazilian starch. An evaluation of the metabolism and distribution of microparticles, and their safety for food and pharmaceutical purposes, are also required.
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22
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Kumar GB, Nair BG, Perry JJP, Martin DBC. Recent insights into natural product inhibitors of matrix metalloproteinases. MEDCHEMCOMM 2019; 10:2024-2037. [PMID: 32904148 PMCID: PMC7451072 DOI: 10.1039/c9md00165d] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 09/11/2019] [Indexed: 12/19/2022]
Abstract
Members of the matrix metalloproteinase (MMP) family have biological functions that are central to human health and disease, and MMP inhibitors have been investigated for the treatment of cardiovascular disease, cancer and neurodegenerative disorders. The outcomes of initial clinical trials with the first generation of MMP inhibitors proved disappointing. However, our growing understanding of the complexities of the MMP function in disease, and an increased understanding of MMP protein architecture and control of activity now provide new opportunities and avenues to develop MMP-focused therapies. Natural products that affect MMP activities have been of strong interest as templates for drug discovery, and for their use as chemical tools to help delineate the roles of MMPs that still remain to be defined. Herein, we highlight the most recent discoveries of structurally diverse natural product inhibitors to these proteases.
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Affiliation(s)
- Geetha B Kumar
- School of Biotechnology , Amrita University , Kollam , Kerala , India
| | - Bipin G Nair
- School of Biotechnology , Amrita University , Kollam , Kerala , India
| | - J Jefferson P Perry
- School of Biotechnology , Amrita University , Kollam , Kerala , India
- Department of Biochemistry , University of California , Riverside , CA 92521 , USA .
| | - David B C Martin
- Department of Chemistry , University of California , Riverside , CA 92521 , USA
- Department of Chemistry , University of Iowa , Iowa City , IA 52242 , USA .
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23
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Kreiter J, Rupprecht A, Zimmermann L, Moschinger M, Rokitskaya TI, Antonenko YN, Gille L, Fedorova M, Pohl EE. Molecular Mechanisms Responsible for Pharmacological Effects of Genipin on Mitochondrial Proteins. Biophys J 2019; 117:1845-1857. [PMID: 31706565 PMCID: PMC7031773 DOI: 10.1016/j.bpj.2019.10.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 09/26/2019] [Accepted: 10/15/2019] [Indexed: 12/15/2022] Open
Abstract
Genipin, a natural compound from Gardenia jasminoides, is a well-known compound in Chinese medicine that is used for the treatment of cancer, inflammation, and diabetes. The use of genipin in classical medicine is hindered because of its unknown molecular mechanisms of action apart from its strong cross-linking ability. Genipin is increasingly applied as a specific inhibitor of proton transport mediated by mitochondrial uncoupling protein 2 (UCP2). However, its specificity for UCP2 is questionable, and the underlying mechanism behind its action is unknown. Here, we investigated the effect of genipin in different systems, including neuroblastoma cells, isolated mitochondria, isolated mitochondrial proteins, and planar lipid bilayer membranes reconstituted with recombinant proteins. We revealed that genipin activated dicarboxylate carrier and decreased the activity of UCP1, UCP3, and complex III of the respiratory chain alongside with UCP2 inhibition. Based on competitive inhibition experiments, the use of amino acid blockers, and site-directed mutagenesis of UCP1, we propose a mechanism of genipin’s action on UCPs. At low concentrations, genipin binds to arginine residues located in the UCP funnel, which leads to a decrease in UCP’s proton transporting function in the presence of long chain fatty acids. At concentrations above 200 μM, the inhibitory action of genipin on UCPs is overlaid by increased nonspecific membrane conductance due to the formation of protein-genipin aggregates. Understanding the concentration-dependent mechanism of genipin action in cells will allow its targeted application as a drug in the above-mentioned diseases.
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Affiliation(s)
- Jürgen Kreiter
- Institute of Physiology, Pathophysiology and Biophysics, Department of Biomedical Sciences, University of Veterinary Medicine, Vienna, Austria
| | - Anne Rupprecht
- Rostock University Medical Center, Rostock, Mecklenburg-Vorpommern, Germany
| | - Lars Zimmermann
- Institute of Physiology, Pathophysiology and Biophysics, Department of Biomedical Sciences, University of Veterinary Medicine, Vienna, Austria
| | - Michael Moschinger
- Institute of Physiology, Pathophysiology and Biophysics, Department of Biomedical Sciences, University of Veterinary Medicine, Vienna, Austria
| | - Tatyana I Rokitskaya
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Yuri N Antonenko
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Lars Gille
- Institute of Pharmacology and Toxicology, Department of Biomedical Sciences, University of Veterinary Medicine, Vienna, Austria
| | - Maria Fedorova
- Institute of Bioanalytical Chemistry, Faculty of Chemistry and Mineralogy, Center for Biotechnology and Biomedicine, University of Leipzig, Leipzig, Germany
| | - Elena E Pohl
- Institute of Physiology, Pathophysiology and Biophysics, Department of Biomedical Sciences, University of Veterinary Medicine, Vienna, Austria.
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24
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Bokil A, Sancho P. Mitochondrial determinants of chemoresistance. CANCER DRUG RESISTANCE (ALHAMBRA, CALIF.) 2019; 2:634-646. [PMID: 35582564 PMCID: PMC8992520 DOI: 10.20517/cdr.2019.46] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 07/10/2019] [Accepted: 07/17/2019] [Indexed: 12/17/2022]
Abstract
Chemoresistance constitute nowadays the major contributor to therapy failure in most cancers. There are main factors that mitigate cell response to therapy, such as target organ, inherent sensitivity to the administered compound, its metabolism, drug efflux and influx or alterations on specific cellular targets, among others. We now know that intrinsic properties of cancer cells, including metabolic features, substantially contribute to chemoresistance. In fact, during the last years, numerous reports indicate that cancer cells resistant to chemotherapy demonstrate significant alterations in mitochondrial metabolism, membrane polarization and mass. Metabolic activity and expression of several mitochondrial proteins are modulated under treatment to cope with stress, making these organelles central players in the development of resistance to therapies. Here, we review the role of mitochondria in chemoresistant cells in terms of metabolic rewiring and function of key mitochondria-related proteins.
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Affiliation(s)
- Ansooya Bokil
- IIS Aragon, Hospital Universitario Miguel Servet, Zaragoza 50009, Spain
| | - Patricia Sancho
- IIS Aragon, Hospital Universitario Miguel Servet, Zaragoza 50009, Spain
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25
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Jo MJ, Jeong S, Yun HK, Kim DY, Kim BR, Kim JL, Na YJ, Park SH, Jeong YA, Kim BG, Ashktorab H, Smoot DT, Heo JY, Han J, Lee DH, Oh SC. Genipin induces mitochondrial dysfunction and apoptosis via downregulation of Stat3/mcl-1 pathway in gastric cancer. BMC Cancer 2019; 19:739. [PMID: 31351462 PMCID: PMC6661087 DOI: 10.1186/s12885-019-5957-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 07/18/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Genipin is a compound derived from gardenia fruit extract. Although Genipin has anti-tumor effects in various cancers, its effect and mechanism in gastric cancer remain unclear. Here, we investigated the relationship between the anticancer effect of Genipin and signal transducer and activator of transcription (Stat3)/myeloid cell leukemia-1 (Mcl-1) in human gastric cancers. METHODS MTT assays were performed to determine the cell viability of gastric cancer and gastric epithelial cell lines (AGS, MKN45, SNU638, MKN74, HFE-145). A TUNEL assay and Western blotting were carried out to investigate apoptosis. Stat3 activity was measured by proteome profiler phospho kinase array, immunofluorescence and immunoblotting. Mitochondria function was monitored with an XF24 analyzer and by flow cytometry, confocal microscopy using fluorescent probes for general mitochondrial membrane potential (MMP). RESULTS Genipin induced apoptosis in gastric cancer cells, including AGS and MKN45 cells. Genipin also reduced Mcl-1 mRNA and protein levels. Furthermore, we found that phosphorylation of Stat3 is regulated by Genipin. Additionally, the protein level of phospho Janus kinase 2 (JAK2) was decreased by Genipin treatment, indicating that the Stat3/JAK2/Mcl-1 pathway is suppressed by Genipin treatment in gastric cancer cells. Mcl-1 is closely related to mitochondrial function. These findings suggest that Genipin contributes to the collapse of mitochondrial functions like MMP. CONCLUSIONS Genipin induced apoptosis by suppressing the Stat3/Mcl-1 pathway and led to mitochondrial dysfunction. Our results reveal a novel mechanism for the anti-cancer effect of Genipin in gastric cancer.
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Affiliation(s)
- Min Jee Jo
- 0000 0001 0840 2678grid.222754.4Graduate School of Medicine, College of Medicine, Korea University, Seoul, 08308 Republic of Korea
| | - Soyeon Jeong
- 0000 0004 0474 0479grid.411134.2Division of Oncology/Hematology, Department of Internal Medicine, Korea University Guro Hospital, 148, Gurodong-gil, Guro-gu, Seoul, 08308 Republic of Korea
| | - Hye Kyeong Yun
- 0000 0001 0840 2678grid.222754.4Graduate School of Medicine, College of Medicine, Korea University, Seoul, 08308 Republic of Korea
| | - Dae Yeong Kim
- 0000 0001 0840 2678grid.222754.4Graduate School of Medicine, College of Medicine, Korea University, Seoul, 08308 Republic of Korea
| | - Bo Ram Kim
- 0000 0004 0474 0479grid.411134.2Division of Oncology/Hematology, Department of Internal Medicine, Korea University Guro Hospital, 148, Gurodong-gil, Guro-gu, Seoul, 08308 Republic of Korea
| | - Jung Lim Kim
- 0000 0004 0474 0479grid.411134.2Division of Oncology/Hematology, Department of Internal Medicine, Korea University Guro Hospital, 148, Gurodong-gil, Guro-gu, Seoul, 08308 Republic of Korea
| | - Yoo Jin Na
- 0000 0001 0840 2678grid.222754.4Graduate School of Medicine, College of Medicine, Korea University, Seoul, 08308 Republic of Korea
| | - Seong Hye Park
- 0000 0001 0840 2678grid.222754.4Graduate School of Medicine, College of Medicine, Korea University, Seoul, 08308 Republic of Korea
| | - Yoon A. Jeong
- 0000 0001 0840 2678grid.222754.4Graduate School of Medicine, College of Medicine, Korea University, Seoul, 08308 Republic of Korea
| | - Bu Gyeom Kim
- 0000 0001 0840 2678grid.222754.4Graduate School of Medicine, College of Medicine, Korea University, Seoul, 08308 Republic of Korea
| | - Hassan Ashktorab
- 0000 0001 0547 4545grid.257127.4Department of Medicine, Howard University, Washington, DC 20060 USA
| | - Duane T. Smoot
- Department of Medicine, Meharry Medical Center, Nashville, TN 37208 USA
| | - Jun Young Heo
- 0000 0001 0722 6377grid.254230.2Department of Medical Science, School of Medicine, Chung-nam National University, Munhwa-dong, Jung-gu, Daejeon, 301-747 Republic of Korea
| | - Jeongsu Han
- 0000 0001 0722 6377grid.254230.2Department of Medical Science, School of Medicine, Chung-nam National University, Munhwa-dong, Jung-gu, Daejeon, 301-747 Republic of Korea
| | - Dae-Hee Lee
- Division of Oncology/Hematology, Department of Internal Medicine, Korea University Guro Hospital, 148, Gurodong-gil, Guro-gu, Seoul, 08308, Republic of Korea. .,Graduate School of Medicine, College of Medicine, Korea University, Seoul, 08308, Republic of Korea.
| | - Sang Cheul Oh
- Division of Oncology/Hematology, Department of Internal Medicine, Korea University Guro Hospital, 148, Gurodong-gil, Guro-gu, Seoul, 08308, Republic of Korea. .,Graduate School of Medicine, College of Medicine, Korea University, Seoul, 08308, Republic of Korea.
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Neri-Numa IA, Angolini CFF, Bicas JL, Ruiz ALTG, Pastore GM. Iridoid blue-based pigments of Genipa americana L. (Rubiaceae) extract: Influence of pH and temperature on color stability and antioxidant capacity during in vitro simulated digestion. Food Chem 2018; 263:300-306. [DOI: 10.1016/j.foodchem.2018.05.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 04/28/2018] [Accepted: 05/01/2018] [Indexed: 10/17/2022]
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Ježek P, Holendová B, Garlid KD, Jabůrek M. Mitochondrial Uncoupling Proteins: Subtle Regulators of Cellular Redox Signaling. Antioxid Redox Signal 2018; 29:667-714. [PMID: 29351723 PMCID: PMC6071544 DOI: 10.1089/ars.2017.7225] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
SIGNIFICANCE Mitochondria are the energetic, metabolic, redox, and information signaling centers of the cell. Substrate pressure, mitochondrial network dynamics, and cristae morphology state are integrated by the protonmotive force Δp or its potential component, ΔΨ, which are attenuated by proton backflux into the matrix, termed uncoupling. The mitochondrial uncoupling proteins (UCP1-5) play an eminent role in the regulation of each of the mentioned aspects, being involved in numerous physiological events including redox signaling. Recent Advances: UCP2 structure, including purine nucleotide and fatty acid (FA) binding sites, strongly support the FA cycling mechanism: UCP2 expels FA anions, whereas uncoupling is achieved by the membrane backflux of protonated FA. Nascent FAs, cleaved by phospholipases, are preferential. The resulting Δp dissipation decreases superoxide formation dependent on Δp. UCP-mediated antioxidant protection and its impairment are expected to play a major role in cell physiology and pathology. Moreover, UCP2-mediated aspartate, oxaloacetate, and malate antiport with phosphate is expected to alter metabolism of cancer cells. CRITICAL ISSUES A wide range of UCP antioxidant effects and participations in redox signaling have been reported; however, mechanisms of UCP activation are still debated. Switching off/on the UCP2 protonophoretic function might serve as redox signaling either by employing/releasing the extra capacity of cell antioxidant systems or by directly increasing/decreasing mitochondrial superoxide sources. Rapid UCP2 degradation, FA levels, elevation of purine nucleotides, decreased Mg2+, or increased pyruvate accumulation may initiate UCP-mediated redox signaling. FUTURE DIRECTIONS Issues such as UCP2 participation in glucose sensing, neuronal (synaptic) function, and immune cell activation should be elucidated. Antioxid. Redox Signal. 29, 667-714.
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Affiliation(s)
- Petr Ježek
- 1 Department of Mitochondrial Physiology, Institute of Physiology of the Czech Academy of Sciences , Prague, Czech Republic
| | - Blanka Holendová
- 1 Department of Mitochondrial Physiology, Institute of Physiology of the Czech Academy of Sciences , Prague, Czech Republic
| | - Keith D Garlid
- 2 UCLA Cardiovascular Research Laboratory, David Geffen School of Medicine at UCLA , Los Angeles, California
| | - Martin Jabůrek
- 1 Department of Mitochondrial Physiology, Institute of Physiology of the Czech Academy of Sciences , Prague, Czech Republic
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Shanmugam MK, Shen H, Tang FR, Arfuso F, Rajesh M, Wang L, Kumar AP, Bian J, Goh BC, Bishayee A, Sethi G. Potential role of genipin in cancer therapy. Pharmacol Res 2018; 133:195-200. [PMID: 29758279 DOI: 10.1016/j.phrs.2018.05.007] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 05/08/2018] [Accepted: 05/09/2018] [Indexed: 12/26/2022]
Abstract
Genipin, an aglycone derived from the iridoid glycoside, geniposide, is isolated and characterized from the extract of Gardenia jasminoides Ellis fruit (family Rubiaceae). It has long been used in traditional oriental medicine for the prevention and treatment of several inflammation driven diseases, including cancer. Genipin has been shown to have hepatoprotective activity acting as a potent antioxidant and inhibitor of mitochondrial uncoupling protein 2 (UCP2), and also reported to exert significant anticancer effects. It is an excellent crosslinking agent that helps to make novel sustained or delayed release nanoparticle formulations. In this review, we present the latest developments of genipin as an anticancer agent and briefly describe its diverse mechanism(s) of action. Several lines of evidence suggest that genipin is a potent inhibitor of UCP2, which functions as a tumor promoter in a variety of cancers, attenuates generation of reactive oxygen species and the expression of matrix metalloproteinase 2, as well as induces caspase-dependent apoptosis in vitro and in in vivo models. These finding suggests that genipin can serve as both a prominent anticancer agent as well as a potent crosslinking drug that may find useful application in several novel pharmaceutical formulations.
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Affiliation(s)
- Muthu K Shanmugam
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, 117600, Singapore
| | - Hongyuan Shen
- Singapore Nuclear Research and Safety Initiative, National University of Singapore, Singapore, 138602, Singapore
| | - Feng Ru Tang
- Singapore Nuclear Research and Safety Initiative, National University of Singapore, Singapore, 138602, Singapore
| | - Frank Arfuso
- Stem Cell and Cancer Biology Laboratory, School of Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, 6102, WA, Australia
| | - Mohanraj Rajesh
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, UAE University, Al Ain, 17666, United Arab Emirates
| | - Lingzhi Wang
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, 117600, Singapore; Cancer Science Institute of Singapore, National University of Singapore, Centre for Translational Medicine, Singapore, 117599, Singapore
| | - Alan Prem Kumar
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, 117600, Singapore; Cancer Science Institute of Singapore, National University of Singapore, Centre for Translational Medicine, Singapore, 117599, Singapore
| | - Jinsong Bian
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, 117600, Singapore
| | - Boon Cher Goh
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, 117600, Singapore; Stem Cell and Cancer Biology Laboratory, School of Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, 6102, WA, Australia; Department of Haematology-Oncology, National University Health System, Singapore, 119228, Singapore
| | - Anupam Bishayee
- Department of Pharmaceutical Sciences, College of Pharmacy, Larkin University, 18301 N. Miami Avenue, Miami, FL, 33169, United States of America
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, 117600, Singapore.
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Kawanishi M, Fukuda T, Shimomura M, Inoue Y, Wada T, Tasaka R, Yasui T, Sumi T. Expression of UCP2 is associated with sensitivity to platinum-based chemotherapy for ovarian serous carcinoma. Oncol Lett 2018; 15:9923-9928. [PMID: 29928365 DOI: 10.3892/ol.2018.8598] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Accepted: 04/16/2018] [Indexed: 01/05/2023] Open
Abstract
The standard treatment for ovarian serous carcinoma is maximum debulking surgery and platinum-based chemotherapy. Despite the high response rate for chemotherapy, the majority of patients will be resistant to first-line agents and the prognosis for these patients is particularly poor. Currently there are no reliable methods to determine or predict platinum resistance. Uncoupling protein 2 (UCP2) is widely expressed in cancer cells and regulates the production of mitochondrial reactive oxygen species (ROS). A reduction in ROS is associated with carcinogenesis and chemoresistance. Downregulation of UCP2 significantly causes increased cell death following chemotherapy. The present study investigated the association between UCP2 expression and platinum sensitivity. The study included 54 patients with ovarian serous carcinoma (FIGO stages III and IV) who were treated at Osaka City University Hospital between January 2005 and December 2012. Patients were divided into a platinum-sensitive group (n=27) and platinum-resistant group (n=27) based on the platinum-free interval, which was calculated from the time of last platinum administration to the time of recurrence. UCP2 expression in human ovarian serous carcinoma cells was inhibited by genipin, and changes in carboplatin sensitivity were examined. The UCP2 weighted score was lower in the platinum-sensitive group than in the platinum resistant-group (P=0.005). In addition, patients in the low UCP2 expression group were more sensitive to platinum-based chemotherapy than those in the high UCP2 expression group (P=0.001). Sensitivity to carboplatin was significantly increased when UCP2 was inhibited in human ovarian serous carcinoma cells in vitro. UCP2 expression may be a predictive marker of the efficacy of platinum-based chemotherapy for patients with ovarian serous carcinoma.
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Affiliation(s)
- Masaru Kawanishi
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Takeshi Fukuda
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Masahiro Shimomura
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Yuta Inoue
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Takuma Wada
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Reiko Tasaka
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Tomoyo Yasui
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Toshiyuki Sumi
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
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Plant-Derived Anticancer Agents: Lessons from the Pharmacology of Geniposide and Its Aglycone, Genipin. Biomedicines 2018; 6:biomedicines6020039. [PMID: 29587429 PMCID: PMC6027249 DOI: 10.3390/biomedicines6020039] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 03/21/2018] [Accepted: 03/22/2018] [Indexed: 12/24/2022] Open
Abstract
For centuries, plants have been exploited by mankind as sources of numerous cancer chemotherapeutic agents. Good examples of anticancer compounds of clinical significance today include the taxanes (e.g., taxol), vincristine, vinblastine, and the podophyllotoxin analogues that all trace their origin to higher plants. While all these drugs, along with the various other available therapeutic options, brought some relief in cancer management, a real breakthrough or cure has not yet been achieved. This critical review is a reflection on the lessons learnt from decades of research on the iridoid glycoside geniposide and its aglycone, genipin, which are currently used as gold standard reference compounds in cancer studies. Their effects on tumour development (carcinogenesis), cancer cell survival, and death, with particular emphasis on their mechanisms of actions, are discussed. Particular attention is also given to mechanisms related to the dual pro-oxidant and antioxidant effects of these compounds, the mitochondrial mechanism of cancer cell killing through reactive oxygen species (ROS), including that generated through the uncoupling protein-2 (UCP-2), the inflammatory mechanism, and cell cycle regulation. The implications of various studies for the evaluation of glycosidic and aglycone forms of natural products in vitro and in vivo through pharmacokinetic scrutiny are also addressed.
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Morton AB, Mor Huertas A, Hinkley JM, Ichinoseki-Sekine N, Christou DD, Smuder AJ. Mitochondrial accumulation of doxorubicin in cardiac and diaphragm muscle following exercise preconditioning. Mitochondrion 2018; 45:52-62. [PMID: 29474837 DOI: 10.1016/j.mito.2018.02.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 11/22/2017] [Accepted: 02/15/2018] [Indexed: 12/22/2022]
Abstract
Doxorubicin (DOX) is a highly effective anthracycline antibiotic. Unfortunately, the clinical use of DOX is limited by the risk of deleterious effects to cardiac and respiratory (i.e. diaphragm) muscle, resulting from mitochondrial reactive oxygen species (ROS) production. In this regard, exercise is demonstrated to protect against DOX-induced myotoxicity and prevent mitochondrial dysfunction. However, the protective mechanisms are currently unclear. We hypothesized that exercise may induce protection by increasing the expression of mitochondria-specific ATP-binding cassette (ABC) transporters and reducing mitochondrial DOX accumulation. Our results confirm this finding and demonstrate that two weeks of exercise preconditioning is sufficient to prevent cardiorespiratory dysfunction.
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Affiliation(s)
- Aaron B Morton
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, United States
| | - Andres Mor Huertas
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, United States
| | - J Matthew Hinkley
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, United States
| | | | - Demetra D Christou
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, United States
| | - Ashley J Smuder
- Department of Exercise Science, University of South Carolina, Columbia, SC, United States.
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Kane MS, Paris A, Codron P, Cassereau J, Procaccio V, Lenaers G, Reynier P, Chevrollier A. Current mechanistic insights into the CCCP-induced cell survival response. Biochem Pharmacol 2017; 148:100-110. [PMID: 29277693 DOI: 10.1016/j.bcp.2017.12.018] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 12/20/2017] [Indexed: 01/13/2023]
Abstract
The ring-substituted derivatives of carbonyl cyanide phenylhydrazone, CCCP and FCCP, are routinely used for the analysis of the mitochondrial function in living cells, tissues, and isolated mitochondrial preparations. CCCP and FCCP are now being increasingly used for investigating the mechanisms of autophagy by inducing mitochondrial degradation through the disruption of the mitochondrial membrane potential (ΔΨm). Sustained perturbation of ΔΨm, which is normally tightly controlled to ensure cell proliferation and survival, triggers various stress pathways as part of the cellular adaptive response, the main components of which are mitophagy and autophagy. We here review current mechanistic insights into the induction of mitophagy and autophagy by CCCP and FCCP. In particular, we analyze the cellular modifications produced by the activation of two major pathways involving the signaling of the nuclear factor erythroid 2-related factor 2 (Nrf2) and the transcription factor EB (TFEB), and discuss the contribution of these pathways to the integrated cellular stress response.
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Affiliation(s)
- Mariame Selma Kane
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Aurelien Paris
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Philippe Codron
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Julien Cassereau
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Vincent Procaccio
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Guy Lenaers
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Pascal Reynier
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Arnaud Chevrollier
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France.
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Sreedhar A, Petruska P, Miriyala S, Panchatcharam M, Zhao Y. UCP2 overexpression enhanced glycolysis via activation of PFKFB2 during skin cell transformation. Oncotarget 2017; 8:95504-95515. [PMID: 29221144 PMCID: PMC5707038 DOI: 10.18632/oncotarget.20762] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Accepted: 08/03/2017] [Indexed: 01/01/2023] Open
Abstract
Uncoupling protein 2 (UCP2) is an inner mitochondrial membrane transporter which is often upregulated in human cancers. However, how this anion transporter affects tumorigenesis is not well understood. Using the skin cell transformation JB6 model, we demonstrated that UCP2 overexpression activated phosphofructokinase 2/fructose-2,6-bisphosphatase 2 (PFKFB2), a key regulator of glycolysis. In conjunction, upregulation of PFKFB2 expression correlated with elevated fructose 2,6-bisphosphate (Fru-2,6-P2) levels, 6-phosphofructo-1-kinase (PFK-1) activity, glucose uptake, and lactate production. Inhibiting PFKFB2 expression suppressed UCP2-mediated skin cell transformation, decreased cell proliferation, and enhanced mitochondrial respiration, while dampening aerobic glycolysis. The AKT signaling pathway was activated in the UCP2 overexpressed cells; furthermore, the activated AKT signaling contributed to the activation of PFKFB2. Whereas AKT inactivation blocked PFKFB2 activation, suggesting that AKT activation is an important step in PFKFB2 activation. Collectively, our data suggest that UCP2 is a critical regulator of cellular metabolism during cell transformation. Our data also demonstrate a potentially novel mechanism to understand UCP2's tumor-promoting role, which is through the AKT-dependent activation of PFKFB2 and thereby, the metabolic shift to glycolysis (the Warburg effect).
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Affiliation(s)
- Annapoorna Sreedhar
- Department of Pharmacology, Toxicology & Neuroscience, LSU Health Sciences Center in Shreveport, Shreveport, LA 71130, USA
| | - Petra Petruska
- Department of Pharmacology, Toxicology & Neuroscience, LSU Health Sciences Center in Shreveport, Shreveport, LA 71130, USA
| | - Sumitra Miriyala
- Department of Anatomy and Cell Biology, LSU Health Sciences Center in Shreveport, Shreveport, LA 71130, USA
| | - Manikandan Panchatcharam
- Department of Anatomy and Cell Biology, LSU Health Sciences Center in Shreveport, Shreveport, LA 71130, USA
| | - Yunfeng Zhao
- Department of Pharmacology, Toxicology & Neuroscience, LSU Health Sciences Center in Shreveport, Shreveport, LA 71130, USA
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Neri-Numa IA, Pessoa MG, Paulino BN, Pastore GM. Genipin: A natural blue pigment for food and health purposes. Trends Food Sci Technol 2017. [DOI: 10.1016/j.tifs.2017.06.018] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Zhang Q, Wang SP, Li LL, Zhang Y. Effects of mitochondrial uncoupling protein 2 inhibition by Genipin on rat bone marrow mesenchymal stem cells under hypoxia and serum deprivation (H/SD) conditions. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2017; 10:10047-10055. [PMID: 31966895 PMCID: PMC6965974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 03/20/2017] [Indexed: 06/10/2023]
Abstract
Bone marrow-derived mesenchymal stem cells (BMSCs) have shown great promise for ischemic tissue repair. However, poor viability of transplanted BMSCs within ischemic tissues has limited their therapeutic potential. Numerous evidences suggested that reactive oxygen species (ROS) generated and apoptosis play an important role in regulation BMSCs loss at the ischemic site. Uncoupling protein 2 (UCP2), a member of the anion carrier superfamily of mitochondrial inner membrane and high expression in stem cells, has been reported to influence mitochondrial ROS production and regulate the energy metabolism. However the exact roles of UCP2 in regulation the BMSCs apoptosis are still not clear. In our study, we determined the functions of UCP2 in BMSCs from SD rats. Genipin, a special UCP2 inhibitor, was added into the cultural medium to reduce the UCP2 expression in BMSCs. Apoptosis was induced by the specific apoptotic insult hypoxia and serum deprivation (SD). There was no significant differences in ATP level in BMSCs from Genipin treatment group as compared with other treatment groups. But, the levels of Reactive oxygen species (ROS) and malondialdehyde (MDA) content in BMSCs treated with Genipin were significant higher than other groups (P<0.05). Furthermore, the level of BMSCs apoptosis was much higher in H/SD and 50 μM Genipin treatment group (31.93% ± 0.16) than H/SD treatment (17.59 ± 0.69) or control group (5.79 ± 0.04) (P<0.05). In addition, Bax and caspase3 activation were elevated after treatment with Genipin (P<0.05). However, the level of anti-apoptotic protein Bcl2 was significantly declined after treatment with Genipin (P<0.05). Taken together, our findings indicate that inhibitionof UCP2 by Genipin enhanced the BMSCs apoptosis under H/SD conditions.
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Affiliation(s)
- Qi Zhang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical UniversityHeilongjiang Province, China
- First Department of Cardiology, Central Hospital of Jiamusi CityHeilongjiang Province, China
| | - Shi-Peng Wang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical UniversityHeilongjiang Province, China
| | - Li-Li Li
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical UniversityHeilongjiang Province, China
| | - Yao Zhang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical UniversityHeilongjiang Province, China
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Mitochondrial uncoupling in cancer cells: Liabilities and opportunities. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2017; 1858:655-664. [DOI: 10.1016/j.bbabio.2017.01.005] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Revised: 12/16/2016] [Accepted: 01/05/2017] [Indexed: 12/12/2022]
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Kon N, Satoh A, Miyoshi N. A small-molecule DS44170716 inhibits Ca 2+-induced mitochondrial permeability transition. Sci Rep 2017. [PMID: 28634393 PMCID: PMC5478606 DOI: 10.1038/s41598-017-03651-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Mitochondria are involved in a variety of physiological and pathological processes. Ca2+ uptake is one of the important functions of the organelle for maintenance of cellular Ca2+ homeostasis. In pathological conditions such as ischemia reperfusion injury, Ca2+ overload into mitochondria induces mitochondrial permeability transition (MPT), a critical step for cell death. Because inhibition of MPT is a promising approach to protecting cells and organs, it is important for drug discovery to identify novel chemicals or mechanisms to inhibit MPT. Here we report upon a small-molecule compound DS44170716 that inhibits Ca2+-induced MPT in rat liver isolated mitochondria. DS44170716 protects human liver HepG2 cells from Ca2+-induced death with a level of protection similar to cyclosporin A (CsA). The inhibitory mechanism of DS44170716 against MPT is independent on PPIF, a target of CsA. DS44170716 blocks Ca2+ flux into the mitochondria by decreasing mitochondrial membrane potential, while potently inhibiting mitochondrial complex III activities and weakly inhibiting complex IV and V activities. Similarly, complex III inhibitor antimycin A, complex IV inhibitor KCN or complex V inhibitor oligomycin inhibits Ca2+ uptake of isolated mitochondria. These results show that DS44170716 is a novel class inhibitor of MPT by blocking of mitochondrial complexes and Ca2+-overload into mitochondria.
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Affiliation(s)
- Naohiro Kon
- Medical Science Department, Daiichi Sankyo Co., Ltd., Tokyo, Japan.
| | - Atsushi Satoh
- Manufacturing Department III, Kitasato Daiichi Sankyo Vaccine Co., Ltd., Saitama, Japan
| | - Naoki Miyoshi
- End-Organ Disease Laboratories, Daiichi Sankyo Co., Ltd., Tokyo, Japan
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Imai K, Fukuda T, Wada T, Kawanishi M, Tasaka R, Yasui T, Sumi T. UCP2 expression may represent a predictive marker of neoadjuvant chemotherapy effectiveness for locally advanced uterine cervical cancer. Oncol Lett 2017; 14:951-957. [PMID: 28693257 DOI: 10.3892/ol.2017.6212] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 03/24/2017] [Indexed: 01/08/2023] Open
Abstract
Concurrent chemoradiotherapy is the standard treatment for locally advanced uterine cervical cancer. However, effective neoadjuvant chemotherapy (NAC) can reduce tumor size and facilitate hysterectomy for locally advanced uterine cervical cancer. NAC treatment could improve the prognosis of patients with locally advanced cervical cancer. However, if NAC is ineffective, radiotherapy must be pursued. This causes a delay in initiating the core treatment and results in a worse prognosis. Therefore, the identification of predictive markers of whether NAC is likely to be effective for the treatment of locally advanced uterine cervical cancer could improve patient prognosis. Uncoupling protein 2 (UCP2) is broadly expressed in cancer cells, and suppresses mitochondrial reactive oxygen species (ROS) production. UCP2 contributes to both carcinogenesis and chemoresistance by reducing ROS. Downregulation of UCP2 results in significantly increased cell death following chemotherapy. The present study investigated the association between UCP2 expression and NAC effectiveness. A total of 58 patients with locally advanced uterine cervical cancer (stage IIIA or IIIB) treated at Osaka City University Hospital between April 1995 and March 2010 were examined. Tumor tissue samples were obtained by punch biopsy prior to NAC. UCP2 expression was examined immunohistochemically and scored using a weighted scoring system. Patients were divided into NAC effective (n=34) and ineffective (n=24) groups. Furthermore, UCP2 expression in human uterine cervical cancer cells was inhibited by genipin, and changes in cisplatin sensitivity were examined. UCP2 weighted score was higher in the NAC ineffective group than in the NAC effective group (P=0.038). Additionally, the low UCP2 expression group was more sensitive to NAC than the high UCP2 expression group (P=0.041). Sensitivity to cisplatin was significantly increased when UCP2 was inhibited in human uterine cervical cancer cells in vitro. UCP2 expression may become a predictive marker of whether NAC is effective for patients with locally advanced uterine cervical cancer, which could improve patient prognosis.
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Affiliation(s)
- Kenji Imai
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Takeshi Fukuda
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Takuma Wada
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Masaru Kawanishi
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Reiko Tasaka
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Tomoyo Yasui
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Toshiyuki Sumi
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
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Dumas JF, Brisson L, Chevalier S, Mahéo K, Fromont G, Moussata D, Besson P, Roger S. Metabolic reprogramming in cancer cells, consequences on pH and tumour progression: Integrated therapeutic perspectives with dietary lipids as adjuvant to anticancer treatment. Semin Cancer Biol 2017; 43:90-110. [DOI: 10.1016/j.semcancer.2017.03.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 03/10/2017] [Accepted: 03/13/2017] [Indexed: 02/07/2023]
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Cho M, Jung SW, Lee S, Son K, Park GH, Jung JW, Shin YS, Seo T, Kang H. Genipin Enhances Kaposi's Sarcoma-Associated Herpesvirus Genome Maintenance. PLoS One 2016; 11:e0163693. [PMID: 27736870 PMCID: PMC5063574 DOI: 10.1371/journal.pone.0163693] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 09/13/2016] [Indexed: 12/29/2022] Open
Abstract
Kaposi's sarcoma-associated herpesvirus (KSHV) is a Gammaherpesvirus that causes acute infection and establishes life-long latency. KSHV causes several human cancers, including Kaposi's sarcoma, an acquired immune deficiency syndrome (AIDS)-related form of non-Hodgkin lymphoma. Genipin, an aglycone derived from geniposide found in Gardenia jasminoides, is known to be an excellent natural cross-linker, strong apoptosis inducer, and antiviral agent. Although evidence suggests antiviral activity of genipin in several in vitro viral infection systems, no inhibitory effect of genipin on KSHV infection has been reported. Thus, our aim was to determine, using the iSLK-BAC16 KSHV infection system, whether genipin has inhibitory effects on KSHV infection. For this purpose, we evaluated biological effects of genipin on KSHV infection and finally determined the underlying mechanisms responsible for the bioactive effects of genipin. A cytotoxicity assay revealed that genipin caused 50% cytotoxicity at 49.5 μM in iSLK-puro (KSHV-negative) cells and at 72.5 μM in iSLK-BAC16 (KSHV-positive) cells. Caspase 3/7 activities were slightly suppressed by genipin treatment in iSLK-BAC16 cells while significantly induced in iSLK-puro cells. Production of the KSHV latency-associated nuclear antigen (LANA), but not that of the R-transactivator (RTA) protein, was significantly induced by genipin treatment at lower concentration. Consistent with the LANA upregulation, KSHV LANA transcripts, but not RTA transcripts, were expressed at a higher level. Furthermore, KSHV intracellular copy numbers were slightly increased at lower concentration of genipin, while KSHV extracellular copy numbers were significantly increased at higher concentration of genipin. Interestingly, genipin treatment at a lower concentration did induce the expression of DNA (cytosine-5)-methyltransferase 1 (DNMT1); however, a co-immunoprecipitation assay showed that the DNMT1 and LANA induced by genipin did not co-precipitate from iSLK-BAC16 cells. Moreover, a chromatin immunoprecipitation assay demonstrated that genipin treatment enhanced the binding of CCCTC-binding factor (CTCF) to the CTCF-binding site in the KSHV latency control region but suppressed the binding of structural maintenance of chromosomes protein 3 (SMC3) to this site. Genipin treatment also led to the recruitment of additional RNA polymerase to the majority of binding sites of some interesting proteins in the KSHV latency control region, which might be related to the extension of S phase in iSLK-BAC16 cells by genipin treatment. Finally, genipin treatment at lower concentration could promote the KSHV latent replication. In contrast, the treatment at higher concentration could induce the KSHV lytic replication. In conclusion, genipin was shown to be an interesting reagent, which we used to manipulate KSHV life cycle in KSHV latently infected cells.
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Affiliation(s)
- Miyeon Cho
- College of Pharmacy and Cancer Research Institute and Institute of Microorganism, Kyungpook National University, Daegu, Republic of Korea
| | - Seok Won Jung
- College of Pharmacy and Cancer Research Institute and Institute of Microorganism, Kyungpook National University, Daegu, Republic of Korea
| | - Soomin Lee
- College of Pharmacy and Cancer Research Institute and Institute of Microorganism, Kyungpook National University, Daegu, Republic of Korea
| | - Kuwon Son
- College of Pharmacy and Cancer Research Institute and Institute of Microorganism, Kyungpook National University, Daegu, Republic of Korea
| | - Gyu Hwan Park
- College of Pharmacy and Cancer Research Institute and Institute of Microorganism, Kyungpook National University, Daegu, Republic of Korea
| | - Jong-Wha Jung
- College of Pharmacy and Cancer Research Institute and Institute of Microorganism, Kyungpook National University, Daegu, Republic of Korea
| | - Yu Su Shin
- Department of Medicinal Crop Research, National Institute of Horticultural and Herbal Science, Rural Development Administration, Eumseong, Republic of Korea
| | - Taegun Seo
- Department of Life Science, Dongguk University, Goyang, Republic of Korea
| | - Hyojeung Kang
- College of Pharmacy and Cancer Research Institute and Institute of Microorganism, Kyungpook National University, Daegu, Republic of Korea
- * E-mail: (HK); (HC)
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Cho YS, Lee JH, Jung KH, Park JW, Moon SH, Choe YS, Lee KH. Molecular mechanism of (18)F-FDG uptake reduction induced by genipin in T47D cancer cell and role of uncoupling protein-2 in cancer cell glucose metabolism. Nucl Med Biol 2016; 43:587-92. [PMID: 27451963 DOI: 10.1016/j.nucmedbio.2016.06.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 05/25/2016] [Accepted: 06/04/2016] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Compounds that modulate cancer cell glucose metabolism could open new opportunities for antitumor therapy and for monitoring response using (18)F-FDG PET. Genipin, a natural dietary compound that blocks uncoupling protein 2 (UCP2)-mediated mitochondrial proton leakage, is a potential anticancer agent. We investigated the effect of genipin on glucose metabolism and the mitochondrial function of cancer cells. METHODS Breast and colon cancer cells were assessed for effects of genipin on (18)F-FDG uptake. T47D breast cancer cells were further evaluated for time-dependent and dose-dependent effects on (18)F-FDG uptake, lactate release, oxygen consumption rate (OCR), reactive oxygen species (ROS) production, and mitochondrial membrane potential. The effects of UCP2 knockdown were evaluated using specific siRNA. RESULTS Cancer cells displayed significant reductions in (18)F-FDG uptake by genipin. T47D cells showed the greatest reduction to 32.6±1.0% of controls by 250μM genipin. The effect occurred rapidly, reaching a plateau by 1h that lasted up to 24h. The effect was dose-dependent with a half-inhibitory concentration of 60.8μM. An accompanying decrease in lactate release was consistent with reduced glycolytic flux. OCR was significantly decreased by genipin to 82.2±11.4% of controls, and ROS generation was increased to 156.7±16.0%. These effects were largely reproduced by UCP2 knockdown with specific siRNA. CONCLUSIONS Genipin decreased cancer cell (18)F-FDG uptake by reducing both glycolytic flux and mitochondrial oxidative respiration. This effect appeared to occur by blocking the ability of UCP2 to dissipate energy and restrict ROS production through proton leakage.
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Affiliation(s)
- Young Seok Cho
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
| | - Jin Hee Lee
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Kyung-Ho Jung
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Jin-Won Park
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Seung Hwan Moon
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Yearn Seong Choe
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Kyung-Han Lee
- Department of Nuclear Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
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Dynamic regulation of uncoupling protein 2 expression by microRNA-214 in hepatocellular carcinoma. Biosci Rep 2016; 36:BSR20160062. [PMID: 27129291 PMCID: PMC5293557 DOI: 10.1042/bsr20160062] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Accepted: 04/07/2016] [Indexed: 12/31/2022] Open
Abstract
Gemcitabine (GEM), a commonly used chemotherapeutic agent in hepatocellular carcinoma (HCC) patients, uses oxidative stress induction as a common effector pathway. However, GEM alone or in combination with oxaliplatin hardly renders any survival benefits to HCC patients. We have recently shown that this is part due to the overexpression of the mitochondrial uncoupling protein 2 (UCP2) that in turn mediates resistance to GEM in HCC patients. However, not much is known about regulatory mechanisms underlying UCP2 overexpression in HCC. Differential protein expression in HCC cell lines did not show a concomitant change in UCP2 transcript level, indicating post-transcriptional or post-translational regulatory mechanism. In situ analysis revealed that UCP2 is a putative target of miR-214 miR-214 expression is significantly down-regulated in HCC patient samples as compared with normal adjacent tissues and in cell line, human hepatoblastoma cells (HuH6), with high UCP2 protein expression. We demonstrated using miR-214 mimic and antagomir that the miRNA targeted UCP2 expression by directly targeting the wild-type, but not a miR-214 seed mutant, 3' UTR of UCP2 Overexpression of miR-214 significantly attenuated cell proliferation. Finally, analysis in 20 HCC patients revealed an inverse correlation in expression of UCP2 and miR-214 (Pearson's correlation coefficient, r=-0.9792). Cumulatively, our data indicate that in the context of HCC, miR-214 acts as a putative tumour suppressor by targeting UCP2 and defines a novel mechanism of regulation of UCP2.
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β-Sitosterol increases mitochondrial electron transport by fluidizing mitochondrial membranes and enhances mitochondrial responsiveness to increasing energy demand by the induction of uncoupling in C2C12 myotubes. J Funct Foods 2016. [DOI: 10.1016/j.jff.2016.02.045] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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Protective effects of Brassica oleracea sprouts extract toward renal damage in high-salt-fed SHRSP: role of AMPK/PPARα/UCP2 axis. J Hypertens 2016; 33:1465-79. [PMID: 25807219 DOI: 10.1097/hjh.0000000000000562] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
OBJECTIVES Renal damage precedes occurrence of stroke in high-sodium/low-potassium-fed stroke-prone spontaneously hypertensive rat (SHRSP). We previously reported a marked suppression of uncoupling protein-2 (UCP2) upon high-salt Japanese-style diet in SHRSP kidneys. Vegetable compounds are known to exert protective effects in cardiovascular diseases. We aimed at evaluating the impact of Brassica oleracea sprouts juice toward renal damage in Japanese diet-fed SHRSP and exploring the role of 5'-adenosine monophosphate-activated protein kinase (AMPK)/NAD-dependent deacetylase sirtuin-1 (SIRT1)/peroxisome proliferator-activated receptor-γ coactivator-1α (PGC1α)/peroxisome proliferator-activated receptor-α (PPARα)/UCP2 axis. METHODS SHRSP received Japanese diet for 4 weeks. A group of SHRSP received Japanese diet and B. oleracea. A third group received Japanese diet, B. oleracea, and PPARα inhibitor (GW6471). A group of SHRSP fed with regular diet served as control. RESULTS Japanese diet induced marked increases of oxidative stress, inflammation, and proteinuria, along with glomerular and tubular damage, as compared with regular diet. A significant suppression of AMPK/UCP2 pathway was observed. Despite Japanese diet feeding, concomitant administration of B. oleracea prevented oxidative stress accumulation, inflammation, renal damage, and proteinuria. All components of the UCP2 regulatory pathway were significantly increased by B. oleracea. Superoxide dismutase 2 and phosphoendothelial nitric oxide synthase were also stimulated. Addition of PPARα inhibitor to B. oleracea and Japanese diet significantly reduced the B. oleracea beneficial effects. SBP levels were comparable among the different groups of rats.In vitro, UCP2 inhibition by genipin offset the antioxidant effect of B. oleracea in renal mesangial and proximal tubular cells. CONCLUSION B. oleracea administration prevented renal damage in salt-loaded SHRSP, independently from SBP, with parallel stimulation of AMPK/SIRT1/PGC1α/PPARα/UCP2 axis. Stimulation of the latter mechanism may provide relevant renal protective effect and play a therapeutic role in target organ damage progression in hypertension.
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Yang Y, Yang Y, Hou J, Ding Y, Zhang T, Zhang Y, Wang J, Shi C, Fu W, Cai Z. The Hydroxyl at Position C1 of Genipin Is the Active Inhibitory Group that Affects Mitochondrial Uncoupling Protein 2 in Panc-1 Cells. PLoS One 2016; 11:e0147026. [PMID: 26771380 PMCID: PMC4714807 DOI: 10.1371/journal.pone.0147026] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 12/27/2015] [Indexed: 12/14/2022] Open
Abstract
Genipin (GNP) effectively inhibits uncoupling protein 2 (UCP2), which regulates the leakage of protons across the inner mitochondrial membrane. UCP2 inhibition may induce pancreatic adenocarcinoma cell death by increasing reactive oxygen species (ROS) levels. In this study, the hydroxyls at positions C10 (10-OH) and C1 (1-OH) of GNP were hypothesized to be the active groups that cause these inhibitory effects. Four GNP derivatives in which the hydroxyl at position C10 or C1 was replaced with other chemical groups were synthesized and isolated. Differences in the inhibitory effects of GNP and its four derivatives on pancreatic carcinoma cell (Panc-1) proliferation were assessed. The effects of GNP and its derivatives on apoptosis, UCP2 inhibition and ROS production were also studied to explore the relationship between GNP’s activity and its structure. The derivatives with 1-OH substitutions, geniposide (1-GNP1) and 1-ethyl-genipin (1-GNP2) lacked cytotoxic effects, while the other derivatives that retained 1-OH, 10-piv-genipin (10-GNP1) and 10-acetic acid-genipin (10-GNP2) exerted biological effects similar to those of GNP, even in the absence of 10-OH. Thus, 1-OH is the key functional group in the structure of GNP that is responsible for GNP’s apoptotic effects. These cytotoxic effects involve the induction of Panc-1 cell apoptosis through UCP2 inhibition and subsequent ROS production.
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Affiliation(s)
- Yang Yang
- Laboratory of Immunology and Virology, Experiment Center For Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yifu Yang
- Laboratory of Immunology and Virology, Experiment Center For Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jianwei Hou
- Experiment Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yue Ding
- Experiment Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- * E-mail: (TZ); (YD)
| | - Tong Zhang
- Experiment Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- * E-mail: (TZ); (YD)
| | - Yong Zhang
- Experiment Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jianying Wang
- Experiment Center for Teaching and Learning, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Chenchen Shi
- Laboratory of Immunology and Virology, Experiment Center For Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Wenwei Fu
- Innovation of Traditional Chinese Medicine Laboratory, College of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhenzhen Cai
- Laboratory of Immunology and Virology, Experiment Center For Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Wang R, MoYung KC, Zhao YJ, Poon K. A Mechanism for the Temporal Potentiation of Genipin to the Cytotoxicity of Cisplatin in Colon Cancer Cells. Int J Med Sci 2016; 13:507-16. [PMID: 27429587 PMCID: PMC4946121 DOI: 10.7150/ijms.15449] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Accepted: 05/31/2016] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVES To investigate the potentiation effect of Genipin to Cisplatin induced cell senescence in HCT-116 colon cancer cells in vitro. METHODS Cell viability was estimated by Propidium iodide and Hoechst 3342, reactive oxygen species (ROS) with DHE, mitochondrial membrane potential (MMP) with JC-1 MMP assay Kit and electron current production with microbial fuel cells (MFC). RESULTS Genipin inhibited the UCP2 mediated anti-oxidative proton leak significantly promoted the Cisplatin induced ROS and subsequent cell death, which was similar to that of UCP2-siRNA. Cells treated with Cisplatin alone or combined with Genipin, ROS negatively, while MMP positively correlated with cell viability. Cisplatin induced ROS was significantly decreased by detouring electrons to MFC, or increased by Genipin combined treatment. Compensatory effects of UCP2 up-regulation with time against Genipin treatment were suggested. Shorter the Genipin treatment before Cisplatin better promoted the Cisplatin induced ROS and subsequent cell death. CONCLUSION The interaction of leaked electron with Cisplatin was important during ROS generation. Inhibition of UCP2-mediated proton leak with Genipin potentiated the cytotoxicity of Cisplatin. Owing to the compensatory effects against Genipin, shorter Genipin treatment before Cisplatin was recommended in order to achieve better potentiation effect.
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Affiliation(s)
- Ruihua Wang
- 1. Department of Gastroenterology, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong,China 518100
| | - K C MoYung
- 2. Program of Food Science and Technology, Division of Science and Technology, BNU-HKBU United International College, 28 Jinfeng Road, Tangjiawan, Zhuhai, Guangdong, China 519085
| | - Y J Zhao
- 2. Program of Food Science and Technology, Division of Science and Technology, BNU-HKBU United International College, 28 Jinfeng Road, Tangjiawan, Zhuhai, Guangdong, China 519085
| | - Karen Poon
- 2. Program of Food Science and Technology, Division of Science and Technology, BNU-HKBU United International College, 28 Jinfeng Road, Tangjiawan, Zhuhai, Guangdong, China 519085
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Abstract
A major barrier to achieving durable remission and a definitive cure in oncology patients is the emergence of tumor resistance, a common outcome of different disease types, and independent from the therapeutic approach undertaken. In recent years, subpopulations of slow-cycling cells endowed with enhanced tumorigenic potential and multidrug resistance have been isolated in different tumors, and mounting experimental evidence suggests these resistant cells are responsible for tumor relapse. An in-depth metabolic characterization of resistant tumor stem cells revealed that they rely more on mitochondrial respiration and less on glycolysis than other tumor cells, a finding that challenges the assumption that tumors have a primarily glycolytic metabolism and defective mitochondria. The demonstration of a metabolic program in resistant tumorigenic cells that may be present in the majority of tumors has important therapeutic implications and is a critical consideration as we address the challenge of identifying new vulnerabilities that might be exploited therapeutically.
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Affiliation(s)
- Andrea Viale
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA.
| | - Giulio F Draetta
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
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Pons DG, Nadal-Serrano M, Torrens-Mas M, Valle A, Oliver J, Roca P. UCP2 inhibition sensitizes breast cancer cells to therapeutic agents by increasing oxidative stress. Free Radic Biol Med 2015; 86:67-77. [PMID: 25960046 DOI: 10.1016/j.freeradbiomed.2015.04.032] [Citation(s) in RCA: 69] [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: 02/02/2015] [Revised: 03/27/2015] [Accepted: 04/28/2015] [Indexed: 02/06/2023]
Abstract
Modulation of oxidative stress in cancer cells plays an important role in the study of the resistance to anticancer therapies. Uncoupling protein 2 (UCP2) may play a dual role in cancer, acting as a protective mechanism in normal cells, while its overexpression in cancer cells could confer resistance to chemotherapy and a higher survival through downregulation of ROS production. Thus, our aim was to check whether the inhibition of UCP2 expression and function increases oxidative stress and could render breast cancer cells more sensitive to cisplatin (CDDP) or tamoxifen (TAM). For this purpose, we studied clonogenicity, mitochondrial membrane potential (ΔΨm), cell viability, ROS production, apoptosis, and autophagy in MCF-7 and T47D (only the last four determinations) breast cancer cells treated with CDDP or TAM, in combination or without a UCP2 knockdown (siRNA or genipin). Furthermore, survival curves were performed in order to check the impact of UCP2 expression in breast cancer patients. UCP2 inhibition and cytotoxic treatments produced a decrease in cell viability and clonogenicity, in addition to an increase in ΔΨm, ROS production, apoptosis, and autophagy. It is important to note that CDDP decreased UCP2 protein levels, so that the greatest effects produced by the UCP2 inhibition in combination with a cytotoxic treatment, with regard to treatment alone, were observed in TAM+UCP2siRNA-treated cells. Moreover, this UCP2 inhibition caused autophagic cell death, since apoptosis parameters barely increased after UCP2 knockdown. Finally, survival curves revealed that higher UCP2 expression corresponded with a poorer prognosis. In conclusion, UCP2 could be a therapeutic target in breast cancer, especially in those patients treated with tamoxifen.
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Affiliation(s)
- Daniel Gabriel Pons
- Grupo Multidisciplinar de Oncología Traslacional, Institut Universitari d'Investigació en Ciències de la Salut (IUNICS-IdISPa), Universitat de les Illes Balears, E07122 Palma de Mallorca, Illes Balears, Spain; Ciber Fisiopatología Obesidad y Nutrición (CB06/03), Instituto de Salud Carlos III, Spain
| | - Mercedes Nadal-Serrano
- Grupo Multidisciplinar de Oncología Traslacional, Institut Universitari d'Investigació en Ciències de la Salut (IUNICS-IdISPa), Universitat de les Illes Balears, E07122 Palma de Mallorca, Illes Balears, Spain; Ciber Fisiopatología Obesidad y Nutrición (CB06/03), Instituto de Salud Carlos III, Spain
| | - Margalida Torrens-Mas
- Grupo Multidisciplinar de Oncología Traslacional, Institut Universitari d'Investigació en Ciències de la Salut (IUNICS-IdISPa), Universitat de les Illes Balears, E07122 Palma de Mallorca, Illes Balears, Spain; Ciber Fisiopatología Obesidad y Nutrición (CB06/03), Instituto de Salud Carlos III, Spain
| | - Adamo Valle
- Grupo Multidisciplinar de Oncología Traslacional, Institut Universitari d'Investigació en Ciències de la Salut (IUNICS-IdISPa), Universitat de les Illes Balears, E07122 Palma de Mallorca, Illes Balears, Spain; Ciber Fisiopatología Obesidad y Nutrición (CB06/03), Instituto de Salud Carlos III, Spain
| | - Jordi Oliver
- Grupo Multidisciplinar de Oncología Traslacional, Institut Universitari d'Investigació en Ciències de la Salut (IUNICS-IdISPa), Universitat de les Illes Balears, E07122 Palma de Mallorca, Illes Balears, Spain; Ciber Fisiopatología Obesidad y Nutrición (CB06/03), Instituto de Salud Carlos III, Spain.
| | - Pilar Roca
- Grupo Multidisciplinar de Oncología Traslacional, Institut Universitari d'Investigació en Ciències de la Salut (IUNICS-IdISPa), Universitat de les Illes Balears, E07122 Palma de Mallorca, Illes Balears, Spain; Ciber Fisiopatología Obesidad y Nutrición (CB06/03), Instituto de Salud Carlos III, Spain
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49
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Uncoupling protein 2 mediates resistance to gemcitabine-induced apoptosis in hepatocellular carcinoma cell lines. Biosci Rep 2015; 35:BSR20150116. [PMID: 26181366 PMCID: PMC4613703 DOI: 10.1042/bsr20150116] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 06/03/2015] [Indexed: 12/24/2022] Open
Abstract
Our results suggest a critical role for mitochondrial uncoupling in gemcitabine (GEM) resistance in hepatocellular carcinoma (HCC) cell lines. Hence, synergistic targeting of uncoupling protein 2 (UCP2) in combination with other chemotherapeutic agents might be more potent in HCC patients. Oxidative stress induction is a common effector pathway for commonly used chemotherapeutic agents like gemcitabine (GEM) in hepatocellular carcinoma (HCC) patients. However, GEM alone or in combination with oxiplatin hardly renders any survival benefits to HCC patients. Mitochondrial uncoupling protein 2 (UCP2) is known to suppress mitochondrial reactive oxygen species (ROS) generation, thus mitigating oxidative stress-induced apoptosis. We demonstrate in the present study, using a panel of HCC cell lines that sensitivity to GEM in HCC well correlate with the endogenous level of UCP2 protein expression. Moreover, ectopic overexpression of UCP2 in a HCC cell line with low endogenous UCP2 expression, HLE, significantly decreased mitochondrial superoxide induction by the anti-cancer drug GEM. Conversely, UCP2 mRNA silencing by RNA interference in HCC cell lines with high endogenous UCP2 expression significantly enhanced GEM-induced mitochondrial superoxide generation and apoptosis. Cumulatively, our results suggest a critical role for mitochondrial uncoupling in GEM resistance in HCC cell lines. Hence, synergistic targeting of UCP2 in combination with other chemotherapeutic agents might be more potent in HCC patients.
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Rajanbabu V, Galam L, Fukumoto J, Enciso J, Tadikonda P, Lane TN, Bandyopadhyay S, Parthasarathy PT, Cho Y, Cho SH, Lee YC, Lockey RF, Kolliputi N. Genipin suppresses NLRP3 inflammasome activation through uncoupling protein-2. Cell Immunol 2015; 297:40-5. [PMID: 26123077 DOI: 10.1016/j.cellimm.2015.06.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 06/06/2015] [Accepted: 06/09/2015] [Indexed: 11/26/2022]
Abstract
Incomplete clearance of apoptotic cells and reactive oxygen species (ROS) release are known to trigger inflammasome activation causing severe inflammation in acute lung injury and various metabolic and autoimmune diseases. Moreover, it has been reported that apoptotic cell clearance and ROS-mediated apoptosis critically depend on mitochondrial uncoupling protein-2 (UCP2). However, the relationship between UCP2 and inflammasome activation has not been studied. This report investigates the role of UCP2 in the expression and activation of NACHT, LRR and PYD domains-containing protein 3 (NLRP3) inflammasome in human macrophages. We found that UCP2 overexpression significantly enhanced the expression levels of NLRP3. The NLRP3 expression levels were significantly suppressed in THP1 cells treated with genipin, a UCP2 inhibitor, compared to controls. In addition, genipin altered adenosine triphosphate (ATP)- and hydrogen peroxide (H2O2)-mediated interleukin-1 beta (IL-1β) secretion and significantly suppressed caspase-1 activity in inflammasome-activated human macrophages. Taken together, our results suggest that genipin modulates NLRP3 inflammasome activation and ATP- or H2O2-mediated IL-1β release.
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Affiliation(s)
- Venugopal Rajanbabu
- Division of Allergy and Immunology, Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Lakshmi Galam
- Division of Allergy and Immunology, Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Jutaro Fukumoto
- Division of Allergy and Immunology, Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Juan Enciso
- Division of Allergy and Immunology, Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Pratima Tadikonda
- Division of Allergy and Immunology, Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Troy N Lane
- Division of Allergy and Immunology, Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Sayantani Bandyopadhyay
- Division of Allergy and Immunology, Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Prasanna Tamarapu Parthasarathy
- Division of Allergy and Immunology, Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Young Cho
- Division of Allergy and Immunology, Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Seong Ho Cho
- Division of Allergy and Immunology, Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Yong Chul Lee
- Department of Internal Medicine, Research Center for Pulmonary Disorders, Chonbuk National University Medical School, Jeonju, South Korea
| | - Richard F Lockey
- Division of Allergy and Immunology, Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Narasaiah Kolliputi
- Division of Allergy and Immunology, Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA.
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