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Wang Y, Huang H, Weng H, Jia C, Liao B, Long Y, Yu F, Nie Y. Talin mechanotransduction in disease. Int J Biochem Cell Biol 2024; 166:106490. [PMID: 37914021 DOI: 10.1016/j.biocel.2023.106490] [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: 07/29/2023] [Revised: 10/26/2023] [Accepted: 10/26/2023] [Indexed: 11/03/2023]
Abstract
Talin protein (Talin 1/2) is a mechanosensitive cytoskeleton protein. The unique structure of the Talin plays a vital role in transmitting mechanical forces. Talin proteins connect the extracellular matrix to the cytoskeleton by linking to integrins and actin, thereby mediating the conversion of mechanical signals into biochemical signals and influencing disease progression as potential diagnostic indicators, therapeutic targets, and prognostic indicators of various diseases. Most studies in recent years have confirmed that mechanical forces also have a crucial role in the development of disease, and Talin has been found to play a role in several diseases. Still, more studies need to be done on how Talin is involved in mechanical signaling in disease. This review focuses on the mechanical signaling of Talin in disease, aiming to summarize the mechanisms by which Talin plays a role in disease and to provide references for further studies.
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Affiliation(s)
- Yingzi Wang
- Department of Cardiovascular Surgery, The Affiliated Hospital of Southwest Medical University, China
| | - Haozhong Huang
- Department of Cardiovascular Surgery, The Affiliated Hospital of Southwest Medical University, China
| | - Huimin Weng
- Department of Cardiovascular Surgery, The Affiliated Hospital of Southwest Medical University, China
| | - Chunsen Jia
- Department of Cardiovascular Surgery, The Affiliated Hospital of Southwest Medical University, China
| | - Bin Liao
- Department of Cardiovascular Surgery, The Affiliated Hospital of Southwest Medical University, China; Metabolic Vascular Disease Key Laboratory of Sichuan Province, China; Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, China; Key Laboratory of Cardiovascular Remodeling and Dysfunction, Luzhou, China
| | - Yang Long
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Southwest Medical University, Luzhou, China; Metabolic Vascular Disease Key Laboratory of Sichuan Province, Luzhou, China; Sichuan Clinical Research Center for Nephropathy, Luzhou, China
| | - Fengxu Yu
- Department of Cardiovascular Surgery, The Affiliated Hospital of Southwest Medical University, China; Metabolic Vascular Disease Key Laboratory of Sichuan Province, China; Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, China; Key Laboratory of Cardiovascular Remodeling and Dysfunction, Luzhou, China
| | - Yongmei Nie
- Department of Cardiovascular Surgery, The Affiliated Hospital of Southwest Medical University, China; Metabolic Vascular Disease Key Laboratory of Sichuan Province, China; Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, China; Key Laboratory of Cardiovascular Remodeling and Dysfunction, Luzhou, China.
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Luo D, Dai X, Tian H, Fan C, Xie H, Chen N, Wang J, Huang L, Wang H, Wang G, Zhang Y. Sophflarine A, a novel matrine-derived alkaloid from Sophora flavescens with therapeutic potential for non-small cell lung cancer through ROS-mediated pyroptosis and autophagy. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 116:154909. [PMID: 37269775 DOI: 10.1016/j.phymed.2023.154909] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 05/21/2023] [Accepted: 05/28/2023] [Indexed: 06/05/2023]
Abstract
BACKGROUND Novel compounds and more efficient treatment options are urgently needed for the treatment of non-small cell lung cancer (NSCLC). The decoction of Sophora flavescens has been used to treat NSCLC in the clinic, and matrine-type alkaloids are generally considered to be the key pharmacodynamic material basis. But the previous study showed that common matrine-type alkaloids exhibit significant cytotoxicity only when at concentrations close to the millimolar (mM) level. The key antitumor alkaloids in S. flavescens seem to have not yet been revealed. PURPOSE The aim of this study was to screen water-soluble matrine alkaloid with novel skeleton and enhanced activity from S. flavescens, and to reveal the pharmacological mechanism of its therapeutic effect on NSCLC. METHODS Alkaloid was obtained from S. flavescens by chromatographic separation methods. The structure of alkaloid was determined by spectroscopic methods, and single-crystal X-ray diffraction. The mechanism of anti-NSCLC in vitro with cellular models was evaluated by MTT assay, western blotting, cell migration and invasion assay, plate colony-formation assay, tube formation assay, immunohistochemistry assay, hematoxylin and eosin staining. The antitumor efficacy in vivo was test in NSCLC xenograft models. RESULTS A novel water-soluble matrine-derived alkaloid incorporating 6/8/6/6 tetracyclic ring system, named sophflarine A (SFA), was isolated from the roots of S. flavescens. SFA had significantly enhanced cytotoxicity compared with the common matrine-type alkaloids, having an IC50 value of 11.3 μM in A549 and 11.5 μM in H820 cells at 48 h. Mechanistically, SFA promoted NSCLC cell death by inducing pyroptosis via activating the NLRP3/caspase-1/GSDMD signaling pathway, and inhibited cancer cell proliferation by increasing the ROS production to activate autophagy via blocking the PI3K/AKT/mTOR signaling pathway. Additionally, SFA also inhibited NSCLC cell migration and invasion by suppressing EMT pathway, and inhibited cancer cell colony formation and human umbilical vein endothelial cell angiogenesis. In concordance with the above results, SFA treatment blocked tumor growth in an A549 cell-bearing orthotopic mouse model. CONCLUSION This study revealed a potential therapeutic mechanism of a novel matrine-derived alkaloid, which not only described a rational explanation for the clinical utilization of S. flavescens, but also provided a potential candidate compound for NSCLC treatment.
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Affiliation(s)
- Ding Luo
- Department of Anesthesiology, The First Affifiliated Hospital of Jinan University, Guangzhou 510000, PR China; Institute of Traditional Chinese Medicine & Natural Products, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, PR China; Guangdong Clinical Translational Center for Targeted Drug, Department of Pharmacology, School of Medicine, Jinan University, Guangzhou 510632, PR China
| | - Xiaoyong Dai
- Institute of Biopharmaceutical and Health Engineering, Shenzhen Key Laboratory of Gene and Antibody Therapy, State Key Laboratory of Chemical Oncogenomics, Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong 518055, PR China
| | - He Tian
- Department of Anesthesiology, The First Affifiliated Hospital of Jinan University, Guangzhou 510000, PR China
| | - Chunlin Fan
- Institute of Traditional Chinese Medicine & Natural Products, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, PR China.
| | - Huayan Xie
- Department of Anesthesiology, The First Affifiliated Hospital of Jinan University, Guangzhou 510000, PR China
| | - Nenghua Chen
- Department of Anesthesiology, The First Affifiliated Hospital of Jinan University, Guangzhou 510000, PR China
| | - Jinghao Wang
- Department of Anesthesiology, The First Affifiliated Hospital of Jinan University, Guangzhou 510000, PR China
| | - Laiqiang Huang
- Institute of Biopharmaceutical and Health Engineering, Shenzhen Key Laboratory of Gene and Antibody Therapy, State Key Laboratory of Chemical Oncogenomics, Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong 518055, PR China
| | - Hao Wang
- Department of Anesthesiology, The First Affifiliated Hospital of Jinan University, Guangzhou 510000, PR China.
| | - Guocai Wang
- Institute of Traditional Chinese Medicine & Natural Products, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, PR China.
| | - Yubo Zhang
- Institute of Traditional Chinese Medicine & Natural Products, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, PR China; Guangdong Clinical Translational Center for Targeted Drug, Department of Pharmacology, School of Medicine, Jinan University, Guangzhou 510632, PR China.
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Dai Y, Lin X, Liu N, Shi L, Zhuo F, Huang Q, Gu W, Zhao F, Zhang Y, Zhang Y, Pan Y, Zhang S. Integrative analysis of transcriptomic and metabolomic profiles reveals abnormal phosphatidylinositol metabolism in follicles from endometriosis‐associated infertility patients. J Pathol 2023. [PMID: 36992523 DOI: 10.1002/path.6079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 12/15/2022] [Accepted: 02/28/2023] [Indexed: 03/31/2023]
Abstract
Endometriosis is a common gynecological disorder that causes female infertility. Our recent research found that excessive oxidative stress in ovaries of endometriosis patients induced senescence of cumulus granulosa cells. Here, we analyzed the transcriptomic and metabolomics profiles of follicles in a mouse model of endometriosis and in patients with endometriosis and investigated the potential function of changed metabolites in granulosa cells. RNA-sequencing indicated that both endometriosis lesions and oxidative stress in mice induced abnormalities of reactive oxidative stress, steroid hormone biosynthesis, and lipid metabolism. The mouse model and women with endometriosis showed altered lipid metabolism. Nontargeted metabolite profiling of follicular fluid from endometriosis and male-factor infertility patients by liquid chromatography mass spectrometry identified 55 upregulated and 67 downregulated metabolites. These differential metabolites were mainly involved in steroid hormone biosynthesis and glycerophospholipid metabolism. Phosphatidylinositol (PI 16:0/18:2) was significantly elevated in follicular fluid from endometriosis patients compared with controls (p < 0.05), while lysophosphatidylinositol (LPI 18:2, 20:2, 18:1, 20:3 and 18:3) was reduced (p < 0.05). Upregulated PI and downregulated LPI correlated with oocyte retrieval number and mature oocyte number. LPI inhibited cellular reactive oxidative stress induced by hemin in granulosa cells. Cell proliferation inhibition, senescence, and apoptosis induced by hemin were partially reversed by LPI. Moreover, LPI administration rescued hemin blocking of cumulus-oocyte complex expansion and stimulated expression of ovulation-related genes. Transcriptomic Switching mechanism at 5' end of the RNA transcript sequencing and western blot revealed that LPI effects on granulosa cells were associated with its regulation of MAPK-ERK1/2 signaling, which was suppressed in the presence of hemin. In conclusion, our results revealed the dysregulation of lipid metabolism in endometriotic follicles. LPI may represent a novel agent for in vitro follicular culture that reverses the excessive oxidative stress from endometriotic lesions. © 2023 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Yongdong Dai
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, PR China
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, PR China
| | - Xiang Lin
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, PR China
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, PR China
| | - Na Liu
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, PR China
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, PR China
| | - Libing Shi
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, PR China
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, PR China
| | - Feng Zhuo
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, PR China
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, PR China
| | - Qianmeng Huang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, PR China
| | - Weijia Gu
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, PR China
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, PR China
| | - Fanxuan Zhao
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, PR China
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, PR China
| | - Yi Zhang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, PR China
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, PR China
| | - Yinli Zhang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, PR China
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, PR China
| | - Yinbin Pan
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, PR China
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, PR China
| | - Songying Zhang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, PR China
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, PR China
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Jakovljevic V, Vorobyev S, Bolevich S, Morozova E, Bolevich S, Saltykov A, Litvickiy P, Fisenko V, Tsymbal A, Orlova A, Sinelnikova T, Kruglova M, Silina E, Mikhaleva A, Milosavljevic I, Sretenovic J, Stojic V, Jeremic J, Nikolic Turnic T. Dose-dependent effects of perfluorocarbon-based blood substitute on cardiac function in myocardial ischemia-reperfusion injury. Mol Cell Biochem 2022; 477:2773-2786. [PMID: 35643877 DOI: 10.1007/s11010-022-04479-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 05/13/2022] [Indexed: 10/18/2022]
Abstract
The main goal of this study was to investigate the cardioprotective properties in terms of effects on cardiodynamics of perfluorocarbon emulsion (PFE) in ex vivo-induced ischemia-reperfusion injury of an isolated rat heart. The first part of the study aimed to determine the dose of 10% perfluoroemulsion (PFE) that would show the best cardioprotective effect in rats on ex vivo-induced ischemia-reperfusion injury of an isolated rat heart. Depending on whether the animals received saline or PFE, the animals were divided into a control or experimental group. They were also grouped depending on the applied dose (8, 12, 16 ml/kg body weight) of saline or PFE. We observed the huge changes in almost all parameters in the PFE groups in comparison with IR group without any pre-treatment. Calculated in percent, dp/dt max was the most changed parameter in group treated with 8 mg/kg, while the dp/dt min, SLVP, DLVP, HR, and CF were the most changed in group treated with 16 mg/kg 10 h before ischemia. The effects of 10% PFE are more pronounced if there is a longer period of time from application to ischemia, i.e., immediate application of PFE before ischemia (1 h) gave the weakest effects on the change of cardiodynamics of isolated rat heart. Therefore, the future of PFE use is in new indications and application methods, and PFE can also be referred to as antihypoxic and antiischemic blood substitute with mild membranotropic effects.
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Affiliation(s)
- Vladimir Jakovljevic
- Faculty of Medical Sciences, Department of Physiology, University of Kragujevac, Svetozara Markovića 69, 34000, Kragujevac, Serbia. .,Department of Human Pathology, First Moscow State Medical, University IM Sechenov, Trubetskaya Street 8, Str. 2 119991, Moscow, Russian Federation.
| | - Sergey Vorobyev
- Department of Human Pathology, First Moscow State Medical, University IM Sechenov, Trubetskaya Street 8, Str. 2 119991, Moscow, Russian Federation
| | - Sergey Bolevich
- Department of Human Pathology, First Moscow State Medical, University IM Sechenov, Trubetskaya Street 8, Str. 2 119991, Moscow, Russian Federation
| | - Elena Morozova
- Department of Human Pathology, First Moscow State Medical, University IM Sechenov, Trubetskaya Street 8, Str. 2 119991, Moscow, Russian Federation
| | - Stefani Bolevich
- Department of Pathophysiology, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation.,Department of Pharmacology, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | - Alexander Saltykov
- Department of Human Pathology, First Moscow State Medical, University IM Sechenov, Trubetskaya Street 8, Str. 2 119991, Moscow, Russian Federation
| | - Peter Litvickiy
- Department of Pathophysiology, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | - Vladimir Fisenko
- Department of Pharmacology, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | - Alexander Tsymbal
- Department of Pathophysiology, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | - Alexandra Orlova
- Department of Human Pathology, First Moscow State Medical, University IM Sechenov, Trubetskaya Street 8, Str. 2 119991, Moscow, Russian Federation
| | - Tatiana Sinelnikova
- Department of Human Pathology, First Moscow State Medical, University IM Sechenov, Trubetskaya Street 8, Str. 2 119991, Moscow, Russian Federation
| | - Maria Kruglova
- Department of Human Pathology, First Moscow State Medical, University IM Sechenov, Trubetskaya Street 8, Str. 2 119991, Moscow, Russian Federation
| | - Ekaterina Silina
- Department of Human Pathology, First Moscow State Medical, University IM Sechenov, Trubetskaya Street 8, Str. 2 119991, Moscow, Russian Federation
| | - Anastasia Mikhaleva
- Department of Human Pathology, First Moscow State Medical, University IM Sechenov, Trubetskaya Street 8, Str. 2 119991, Moscow, Russian Federation
| | - Isidora Milosavljevic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Jasmina Sretenovic
- Faculty of Medical Sciences, Department of Physiology, University of Kragujevac, Svetozara Markovića 69, 34000, Kragujevac, Serbia
| | - Vladislava Stojic
- Department of Statistics and Informatics, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Jovana Jeremic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Tamara Nikolic Turnic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia.,N.A.Semashko Public Health and Healthcare Department, F.F. Erismann Institute of Public Health, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation
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Function-guided proximity mapping unveils electrophilic-metabolite sensing by proteins not present in their canonical locales. Proc Natl Acad Sci U S A 2022; 119:2120687119. [PMID: 35082156 PMCID: PMC8812531 DOI: 10.1073/pnas.2120687119] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/14/2021] [Indexed: 11/18/2022] Open
Abstract
Enzyme-assisted posttranslational modifications (PTMs) constitute a major means of signaling across different cellular compartments. However, how nonenzymatic PTMs-despite their direct relevance to covalent drug development-impinge on cross-compartment signaling remains inaccessible as current target-identification (target-ID) technologies offer limited spatiotemporal resolution, and proximity mapping tools are also not guided by specific, biologically-relevant, ligand chemotypes. Here we establish a quantitative and direct profiling platform (Localis-rex) that ranks responsivity of compartmentalized subproteomes to nonenzymatic PTMs. In a setup that contrasts nucleus- vs. cytoplasm-specific responsivity to reactive-metabolite modification (hydroxynonenylation), ∼40% of the top-enriched protein sensors investigated respond in compartments of nonprimary origin or where the canonical activity of the protein sensor is inoperative. CDK9-a primarily nuclear-localized kinase-was hydroxynonenylated only in the cytoplasm. Site-specific CDK9 hydroxynonenylation-which we identified in untreated cells-drives its nuclear translocation, downregulating RNA-polymerase-II activity, through a mechanism distinct from that of commonly used CDK9 inhibitors. Taken together, this work documents an unmet approach to quantitatively profile and decode localized and context-specific signaling/signal-propagation programs orchestrated by reactive covalent ligands.
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Tang L, Zhang YH, Wang X, Zhang CC, Qin G, Lin Q. Effects of chronic exposure to environmental levels of tributyltin on the lined seahorse (Hippocampus erectus) liver: Analysis of bioaccumulation, antioxidant defense, and immune gene expression. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 801:149646. [PMID: 34416608 DOI: 10.1016/j.scitotenv.2021.149646] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 08/04/2021] [Accepted: 08/09/2021] [Indexed: 06/13/2023]
Abstract
Tributyltin (TBT), an organotin compound frequently detected in the coastal environments, poses a threat to aquatic organisms. The lined seahorse (Hippocampus erectus) is a vulnerable species found in nearshore water habitats. The mechanisms by which this fish responds to TBT exposure are not yet fully understood. Histological, biochemical, and transcriptional analyses were conducted, and the results showed that 60 days of exposure to 50 and 500 ng/L TBT caused significant tin accumulation and liver damage to seahorses. Antioxidant defenses and immune responses to TBT exposure in the livers of seahorses were further investigated. The enzymatic activity of superoxide dismutase and malondialdehyde content increased, while catalase activity decreased. Transcriptomic analysis revealed that a series of genes involved in the antioxidant defense system were highly induced to protect the hepatic cells from oxidative damage. TBT exposure also resulted in the induction of genes associated with immune and inflammatory processes, representing a stress response to combat the adverse environmental conditions in the exposed seahorses. Furthermore, seahorses showed an increased health risk, according to the elevation of the expression of genes with tumor-promoting effects, when exposed to TBT. These findings contribute to our understanding of the adverse effects of TBT exposure on seahorses, and their potential defense mechanisms.
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Affiliation(s)
- Lu Tang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Yan-Hong Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, PR China.
| | - Xin Wang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, PR China
| | - Can-Chuan Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Geng Qin
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, PR China
| | - Qiang Lin
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China.
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Moriel-Carretero M. The Many Faces of Lipids in Genome Stability (and How to Unmask Them). Int J Mol Sci 2021; 22:12930. [PMID: 34884734 PMCID: PMC8657548 DOI: 10.3390/ijms222312930] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 11/12/2021] [Accepted: 11/26/2021] [Indexed: 12/15/2022] Open
Abstract
Deep efforts have been devoted to studying the fundamental mechanisms ruling genome integrity preservation. A strong focus relies on our comprehension of nucleic acid and protein interactions. Comparatively, our exploration of whether lipids contribute to genome homeostasis and, if they do, how, is severely underdeveloped. This disequilibrium may be understood in historical terms, but also relates to the difficulty of applying classical lipid-related techniques to a territory such as a nucleus. The limited research in this domain translates into scarce and rarely gathered information, which with time further discourages new initiatives. In this review, the ways lipids have been demonstrated to, or very likely do, impact nuclear transactions, in general, and genome homeostasis, in particular, are explored. Moreover, a succinct yet exhaustive battery of available techniques is proposed to tackle the study of this topic while keeping in mind the feasibility and habits of "nucleus-centered" researchers.
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Affiliation(s)
- María Moriel-Carretero
- Centre de Recherche en Biologie Cellulaire de Montpellier (CRBM), Université de Montpellier, Centre National de la Recherche Scientifique, CEDEX 5, 34293 Montpellier, France
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Natural Exogenous Antioxidant Defense against Changes in Human Skin Fibroblast Proteome Disturbed by UVA Radiation. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:3216415. [PMID: 33204393 PMCID: PMC7661135 DOI: 10.1155/2020/3216415] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 10/15/2020] [Indexed: 12/16/2022]
Abstract
Daily exposure of the skin to UVA radiation causes oxidative modifications to cellular components and biomolecules. These include proteins involved in the metabolism and cytoprotection of fibroblasts, and their modification can contribute to the disruption of cell function and the development of skin disorders. Therefore, there remains a need for highly active cytoprotective compounds with antioxidant properties. The purpose of this study was to investigate the effect of ascorbic acid on the activity of rutin against UVA-induced changes in the proteome of human fibroblasts. All analyses were carried out on fibroblasts cultured in a three-dimensional system exposed to UVA radiation and incubated with rutin and ascorbic acid. Their proteomic profile was analyzed using nano-HPLC, which revealed 150 proteins whose expression was significantly altered between treatment conditions. UVA radiation led to changes in the expression of 82 proteins. However, some of these changes were mitigated by rutin and ascorbic acid separately (23 and 25 proteins, respectively) and rutin and ascorbic acid together (23 proteins). UVA radiation has led to the upregulation of proteins involved in gene expression, catalytic processes and antioxidant pathways, and downregulation of proteins with binding activity. Nevertheless, rutin and ascorbic acid used separately or together have countered these changes to varying degrees. Moreover, rutin and ascorbic acid stimulated fibroblasts irradiated by UVA to increase the expression of the signalling molecules responsible for the opening of the transmembrane channels. In the context of the results obtained, the observed cytoprotective effect of the cooperation of rutin and ascorbic acid results not only from the overlapping properties of the compounds. The effect of rutin alone is probably inhibited by its limited bioavailability. Therefore, its interaction with ascorbic acid increases membrane penetration and improves the cytoprotective effect on skin fibroblasts.
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Fuloria S, Subramaniyan V, Karupiah S, Kumari U, Sathasivam K, Meenakshi DU, Wu YS, Guad RM, Udupa K, Fuloria NK. A Comprehensive Review on Source, Types, Effects, Nanotechnology, Detection, and Therapeutic Management of Reactive Carbonyl Species Associated with Various Chronic Diseases. Antioxidants (Basel) 2020; 9:E1075. [PMID: 33147856 PMCID: PMC7692604 DOI: 10.3390/antiox9111075] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 10/26/2020] [Accepted: 10/28/2020] [Indexed: 12/12/2022] Open
Abstract
Continuous oxidation of carbohydrates, lipids, and amino acids generate extremely reactive carbonyl species (RCS). Human body comprises some important RCS namely hexanal, acrolein, 4-hydroxy-2-nonenal, methylglyoxal, malondialdehyde, isolevuglandins, and 4-oxo-2- nonenal etc. These RCS damage important cellular components including proteins, nucleic acids, and lipids, which manifests cytotoxicity, mutagenicity, multitude of adducts and crosslinks that are connected to ageing and various chronic diseases like inflammatory disease, atherosclerosis, cerebral ischemia, diabetes, cancer, neurodegenerative diseases and cardiovascular disease. The constant prevalence of RCS in living cells suggests their importance in signal transduction and gene expression. Extensive knowledge of RCS properties, metabolism and relation with metabolic diseases would assist in development of effective approach to prevent numerous chronic diseases. Treatment approaches for RCS associated diseases involve endogenous RCS metabolizers, carbonyl metabolizing enzyme inducers, and RCS scavengers. Limited bioavailability and bio efficacy of RCS sequesters suggest importance of nanoparticles and nanocarriers. Identification of RCS and screening of compounds ability to sequester RCS employ several bioassays and analytical techniques. Present review describes in-depth study of RCS sources, types, properties, identification techniques, therapeutic approaches, nanocarriers, and their role in various diseases. This study will give an idea for therapeutic development to combat the RCS associated chronic diseases.
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Affiliation(s)
- Shivkanya Fuloria
- Faculty of Pharmacy, AIMST University, Kedah, Bedong 08100, Malaysia;
| | - Vetriselvan Subramaniyan
- Faculty of Medicine, Bioscience and Nursing, MAHSA University, Kuala Lumpur 42610, Malaysia; (V.S.); (Y.S.W.)
| | - Sundram Karupiah
- Faculty of Pharmacy, AIMST University, Kedah, Bedong 08100, Malaysia;
| | - Usha Kumari
- Faculty of Medicine, AIMST University, Kedah, Bedong 08100, Malaysia;
| | | | | | - Yuan Seng Wu
- Faculty of Medicine, Bioscience and Nursing, MAHSA University, Kuala Lumpur 42610, Malaysia; (V.S.); (Y.S.W.)
| | - Rhanye Mac Guad
- Faculty of Medicine and Health Science, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia;
| | - Kaviraja Udupa
- Department of Neurophysiology, NIMHANS, Bangalore 560029, India;
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10
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Cytoprotective Effect of Ascorbic Acid and Rutin against Oxidative Changes in the Proteome of Skin Fibroblasts Cultured in a Three-Dimensional System. Nutrients 2020; 12:nu12041074. [PMID: 32294980 PMCID: PMC7230807 DOI: 10.3390/nu12041074] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 04/08/2020] [Accepted: 04/09/2020] [Indexed: 01/16/2023] Open
Abstract
The combination of ascorbic acid and rutin, commonly used in oral preparations for their antioxidant and anti-inflammatory properties, can also be used to protect skin cells from the effects of UV radiation in sunlight. Here, we tested the potential protective effect of ascorbic acid and rutin used together in UVB-irradiated human skin fibroblasts, and assessed the proteomic profile of these cells, grown in a three-dimensional (3D) system. Proteomic findings revealed a combined effect of ascorbic acid and rutin in UV-irradiated fibroblasts against overexpression of pro-inflammatory signaling proteins and DNA reorganization/expression. These effects were not observed when cells were treated with either compounds alone. The antioxidant effects of ascorbic acid and rutin also prevented protein modifications by lipid peroxidation products. Further, ascorbic acid stimulated rutin-protein adduct formation, which supports intra/extracellular signaling and the Nrf2/ARE antioxidant pathway, contributing to the protective effects against UV-induced oxidative stress. The combined effect of ascorbic acid and rutin suggests that this combination of compounds is potentially effective against skin damage caused by UV radiation.
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11
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Niu J, Yan T, Guo W, Wang W, Zhao Z. Insight Into the Role of Autophagy in Osteosarcoma and Its Therapeutic Implication. Front Oncol 2019; 9:1232. [PMID: 31803616 PMCID: PMC6873391 DOI: 10.3389/fonc.2019.01232] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 10/28/2019] [Indexed: 12/22/2022] Open
Abstract
Osteosarcoma is an aggressive bone cancer that frequently metastasizes to the lungs. The cytotoxicity of most chemotherapeutics and targeted drugs in the treatment of osteosarcoma is partially lessened. Furthermore, there is a poor response to current chemo- and radiotherapy for both primary lesions and pulmonary metastases of osteosarcoma. There is a clear need to explore promising drug candidates that could improve the efficacy of osteosarcoma treatment. Autophagy, a dynamic and highly conserved catabolic process, has dual roles in promoting cell survival as well as cell death. The role of autophagy has been investigated extensively in different tumor types, and a growing body of research has highlighted the potential value of using autophagy in clinical therapy. Here, we address significant aspects of autophagy in osteosarcoma, including its functions, modulation, and possible therapeutic applications.
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Affiliation(s)
- Jianfang Niu
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, China.,Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, China
| | - Taiqiang Yan
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, China.,Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, China
| | - Wei Guo
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, China.,Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, China
| | - Wei Wang
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, China.,Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, China
| | - Zhiqing Zhao
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, China.,Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, China
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12
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Gęgotek A, Skrzydlewska E. Biological effect of protein modifications by lipid peroxidation products. Chem Phys Lipids 2019; 221:46-52. [DOI: 10.1016/j.chemphyslip.2019.03.011] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 02/26/2019] [Accepted: 03/24/2019] [Indexed: 01/26/2023]
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13
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Cheng DL, Zhu N, Li CL, Lv WF, Fang WW, Liu Y, Li CT. Significance of malondialdehyde, superoxide dismutase and endotoxin levels in Budd-Chiari syndrome in patients and a rat model. Exp Ther Med 2018; 16:5227-5235. [PMID: 30542478 PMCID: PMC6257749 DOI: 10.3892/etm.2018.6835] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 10/02/2018] [Indexed: 12/13/2022] Open
Abstract
Budd-Chiari syndrome (BCS) is a rare clinical syndrome caused by the obstruction of hepatic venous outflow. In theory, hepatic congestion and hypoxia induce pathological damage and changes in the liver. However, at present, laboratory evidence supporting this theory is lacking. The aim of the present study was to assess the expression and significance of the hypoxia-associated indicators malondialdehyde (MDA), superoxide dismutase (SOD) and endotoxin (ET) in the liver and serum of subjects with BCS. An animal model of BCS was established by partial ligation of the inferior vena cava (IVC) in rats. The levels of MDA, SOD and ET in the serum of BCS patients, as well as in the liver and serum of rats with BCS, were detected and analyzed. In human patients with BCS, the serum levels of MDA, ET and SOD were significantly different from those in healthy control subjects. In the animal model, similar trends were observed regarding the MDA, ET and SOD levels in liver homogenate and serum (P<0.05), the degree of which was more pronounced in the liver homogenate than in the serum. At 6 weeks after the surgery, these indicators reached peak/valley levels in the experimental group and were at least partially restored by week 12. A negative correlation between MDA and SOD, a positive correlation between MDA and ET, and a negative correlation between SOD and ET was identified. In conclusion, the levels of hypoxia-associated indicators significantly changed with BCS progression, suggesting that hypoxia is a major factor in the pathogenesis of BCS.
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Affiliation(s)
- De-Lei Cheng
- Department of Magnetic Resonance Imaging, Shandong Medical Imaging Research Institute, Shandong University, Jinan, Shandong 250021, P.R. China
- Department of Interventional Radiology, Anhui Provincial Hospital, Hefei, Anhui 230001, P.R. China
| | - Nan Zhu
- Department of Radiology, People's Hospital of Wuhe County, Bengbu, Anhui 233300, P.R. China
| | - Cheng-Li Li
- Department of Magnetic Resonance Imaging, Shandong Medical Imaging Research Institute, Shandong University, Jinan, Shandong 250021, P.R. China
| | - Wei-Fu Lv
- Department of Interventional Radiology, Anhui Provincial Hospital, Hefei, Anhui 230001, P.R. China
| | - Wei-Wei Fang
- Department of Interventional Radiology, Anhui Provincial Hospital, Hefei, Anhui 230001, P.R. China
| | - Ya Liu
- Department of Interventional Radiology, The Third People's Hospital of Hefei, Hefei, Anhui 230022, P.R. China
| | - Chuan-Ting Li
- Department of Magnetic Resonance Imaging, Shandong Medical Imaging Research Institute, Shandong University, Jinan, Shandong 250021, P.R. China
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14
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Sun R, Fu L, Liu K, Tian C, Yang Y, Tallman KA, Porter NA, Liebler DC, Yang J. Chemoproteomics Reveals Chemical Diversity and Dynamics of 4-Oxo-2-nonenal Modifications in Cells. Mol Cell Proteomics 2017; 16:1789-1800. [PMID: 28814509 DOI: 10.1074/mcp.ra117.000116] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
4-Oxo-2-nonenal (ONE) derived from lipid peroxidation modifies nucleophiles and transduces redox signaling by its reactions with proteins. However, the molecular interactions between ONE and complex proteomes and their dynamics in situ remain largely unknown. Here we describe a quantitative chemoproteomic analysis of protein adduction by ONE in cells, in which the cellular target profile of ONE is mimicked by its alkynyl surrogate. The analyses reveal four types of ONE-derived modifications in cells, including ketoamide and Schiff-base adducts to lysine, Michael adducts to cysteine, and a novel pyrrole adduct to cysteine. ONE-derived adducts co-localize and exhibit crosstalk with many histone marks and redox sensitive sites. All four types of modifications derived from ONE can be reversed site-specifically in cells. Taken together, our study provides much-needed mechanistic insights into the cellular signaling and potential toxicities associated with this important lipid derived electrophile.
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Affiliation(s)
- Rui Sun
- From the ‡State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease, Center for New Drug Safety Evaluation and Research, China Pharmaceutical University, Nanjing 211198, China.,§State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences, Beijing Institute of Radiation Medicine, Beijing 102206, China
| | - Ling Fu
- §State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences, Beijing Institute of Radiation Medicine, Beijing 102206, China
| | - Keke Liu
- §State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences, Beijing Institute of Radiation Medicine, Beijing 102206, China
| | - Caiping Tian
- §State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences, Beijing Institute of Radiation Medicine, Beijing 102206, China
| | - Yong Yang
- From the ‡State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease, Center for New Drug Safety Evaluation and Research, China Pharmaceutical University, Nanjing 211198, China
| | - Keri A Tallman
- ¶Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37232
| | - Ned A Porter
- ¶Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37232
| | - Daniel C Liebler
- ‖Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee 37232
| | - Jing Yang
- §State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences, Beijing Institute of Radiation Medicine, Beijing 102206, China;
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15
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Cross-talk between lipid and protein carbonylation in a dynamic cardiomyocyte model of mild nitroxidative stress. Redox Biol 2016; 11:438-455. [PMID: 28086193 PMCID: PMC5226815 DOI: 10.1016/j.redox.2016.12.028] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 12/27/2016] [Indexed: 12/12/2022] Open
Abstract
Reactive oxygen and nitrogen species (ROS/RNS) play an important role in the regulation of cardiac function. Increase in ROS/RNS concentration results in lipid and protein oxidation and is often associated with onset and/or progression of many cardiovascular disorders. However, interplay between lipid and protein modifications has not been simultaneously studied in detail so far. Biomolecule carbonylation is one of the most common biomarkers of oxidative stress. Using a dynamic model of nitroxidative stress we demonstrated rapid changes in biomolecule carbonylation in rat cardiomyocytes. Levels of carbonylated species increased as early as 15min upon treatment with the peroxynitrite donor, 3-morpholinosydnonimine (SIN-1), and decreased to values close to control after 16h. Total (lipids+proteins) vs. protein-specific carbonylation showed different dynamics, with a significant increase in protein-bound carbonyls at later time points. Treatment with SIN-1 in combination with inhibitors of proteasomal and autophagy/lysosomal degradation pathways allowed confirmation of a significant role of the proteasome in the degradation of carbonylated proteins, whereas lipid carbonylation increased in the presence of autophagy/lysosomal inhibitors. Electrophilic aldehydes and ketones formed by lipid peroxidation were identified and relatively quantified using LC-MS/MS. Molecular identity of reactive species was used for data-driven analysis of their protein targets. Combination of different enrichment strategies with LC-MS/MS analysis allowed identification of more than 167 unique proteins with 332 sites modified by electrophilic lipid peroxidation products. Gene ontology analysis of modified proteins demonstrated enrichment of several functional categories including proteins involved in cytoskeleton, extracellular matrix, ion channels and their regulation. Using calcium mobilization assays, the effect of nitroxidative stress on the activity of several ion channels was further confirmed.
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16
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Abstract
Bioactive electrophiles generated from the oxidation of endogenous and exogenous compounds are a contributing factor in numerous disease states. Their toxicity is largely attributed to the covalent modification of cellular nucleophiles, including protein and DNA. With regard to protein modification, the side-chains of Cys, His, Lys, and Arg residues are critical targets. This results in the generation of undesired protein post-translational modifications (PTMs) that can trigger dire cellular consequences. Notably, histones are Lys- and Arg-rich proteins, providing a fertile source for adduction by both exogenous and endogenous electrophiles. The regulation of histone PTMs plays a critical role in the regulation of chromatin structure and thus gene expression. This perspective focuses on the role of electrophilic protein adduction within the context of chromatin and its potential consequences on cellular law and order.
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Affiliation(s)
- James J Galligan
- Department of Biochemistry, ‡Department of Chemistry, Vanderbilt University School of Medicine , Nashville, Tennessee 37232-0146, United States
| | - Lawrence J Marnett
- Department of Biochemistry, ‡Department of Chemistry, Vanderbilt University School of Medicine , Nashville, Tennessee 37232-0146, United States
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17
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Jeong HS, Cho YH, Kim KH, Kim Y, Kim KS, Na YC, Park J, Lee IS, Lee JH, Jang HJ. Anti-lipoapoptotic effects of Alisma orientalis extract on non-esterified fatty acid-induced HepG2 cells. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 16:239. [PMID: 27456850 PMCID: PMC4960791 DOI: 10.1186/s12906-016-1181-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 06/14/2016] [Indexed: 12/18/2022]
Abstract
BACKGROUND Liver steatosis was caused by lipid accumulation in the liver. Alisma orientale (AO) is recognized as a promising candidate with therapeutic efficacy for the treatment of nonalcoholic fatty liver disease (NAFLD). HepG2 hepatocyte cell line is commonly used for liver disease cell model. METHOD The HepG2 cells were cultured with the NEFAs mixture (oleic and palmitic acids, 2:1 ratio) for 24 h to induce hepatic steatosis. Then different doses of Alisma orientale extract (AOE) was treated to HepG2 for 24 h. Incubated cells were used for further experiments. RESULTS The AOE showed inhibitory effects on lipid accumulation in the Oil Red O staining and Nile red staining tests with no cytotoxicity at a concentration of 300 μg/mL. Fatty acid synthase (FASN) and acetyl-CoA carboxylase 1 (ACC1) mRNA and protein expression level were down-regulated after AOE treatment. Bcl-2 associated X protein (Bax) and c-Jun N-terminal kinase (JNK) mRNA expression level were decreased as well as p-JNK (activated form of JNK), Bax, cleaved caspase-9, caspase-3 protein expression level. Anti-apopototic B-cell lymphoma 2 (Bcl-2) protein level increased after AOE treatment. In addition, inflammatory protein expression including p-p65, p65, COX-2 and iNOS were inhibited by AOE treatment. CONCLUSION The results suggest that AOE has anti-steatosis effects that involve lipogenesis, anti-lipoapoptosis, and anti-inflammation in the NEFA-induced NAFLD pathological cell model.
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Affiliation(s)
- Hyeon-Soo Jeong
- College of Korean Medicine, Institute of Korean Medicine, Kyung Hee University, 1 Heogi-dong, Dongdaemun-gu, Seoul, 130-701, Republic of Korea
| | - Young-Hwan Cho
- College of Korean Medicine, Institute of Korean Medicine, Kyung Hee University, 1 Heogi-dong, Dongdaemun-gu, Seoul, 130-701, Republic of Korea
| | - Kang-Hoon Kim
- College of Korean Medicine, Institute of Korean Medicine, Kyung Hee University, 1 Heogi-dong, Dongdaemun-gu, Seoul, 130-701, Republic of Korea
| | - Yumi Kim
- College of Korean Medicine, Institute of Korean Medicine, Kyung Hee University, 1 Heogi-dong, Dongdaemun-gu, Seoul, 130-701, Republic of Korea
- Western Seoul Center, Korea Basic Science Institute, 150 Bugahyeon-ro, Seodaemun-gu, Seoul, 120-140, Republic of Korea
| | - Ki-Suk Kim
- College of Korean Medicine, Institute of Korean Medicine, Kyung Hee University, 1 Heogi-dong, Dongdaemun-gu, Seoul, 130-701, Republic of Korea
| | - Yun-Cheol Na
- Western Seoul Center, Korea Basic Science Institute, 150 Bugahyeon-ro, Seodaemun-gu, Seoul, 120-140, Republic of Korea
| | - Jiyoung Park
- College of Korean Medicine, Institute of Korean Medicine, Kyung Hee University, 1 Heogi-dong, Dongdaemun-gu, Seoul, 130-701, Republic of Korea
| | - In-Seung Lee
- College of Korean Medicine, Institute of Korean Medicine, Kyung Hee University, 1 Heogi-dong, Dongdaemun-gu, Seoul, 130-701, Republic of Korea
| | - Jang-Hoon Lee
- College of Korean Medicine, Institute of Korean Medicine, Kyung Hee University, 1 Heogi-dong, Dongdaemun-gu, Seoul, 130-701, Republic of Korea.
| | - Hyeung-Jin Jang
- College of Korean Medicine, Institute of Korean Medicine, Kyung Hee University, 1 Heogi-dong, Dongdaemun-gu, Seoul, 130-701, Republic of Korea.
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18
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Gao Q, Goodman JM. The lipid droplet-a well-connected organelle. Front Cell Dev Biol 2015; 3:49. [PMID: 26322308 PMCID: PMC4533013 DOI: 10.3389/fcell.2015.00049] [Citation(s) in RCA: 156] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 07/24/2015] [Indexed: 12/19/2022] Open
Abstract
Our knowledge of inter-organellar communication has grown exponentially in recent years. This review focuses on the interactions that cytoplasmic lipid droplets have with other organelles. Twenty-five years ago droplets were considered simply particles of coalesced fat. Ten years ago there were hints from proteomics studies that droplets might interact with other structures to share lipids and proteins. Now it is clear that the droplets interact with many if not most cellular structures to maintain cellular homeostasis and to buffer against insults such as starvation. The evidence for this statement, as well as probes to understand the nature and results of droplet interactions, are presented.
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Affiliation(s)
- Qiang Gao
- Department of Pharmacology, University of Texas Southwestern Medical Center Dallas, TX, USA
| | - Joel M Goodman
- Department of Pharmacology, University of Texas Southwestern Medical Center Dallas, TX, USA
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19
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Abstract
Liver fibrosis is the pathological consequence of chronic liver diseases, where an excessive deposition of extracellular matrix (ECM) proteins occurs, concomitantly with the processes of repair and regeneration. It is characterized by increased production of matrix proteins, in particular collagens, and decreased matrix remodelling. The principal source of ECM accumulation is myofibroblasts (MFB). Most fibrogenic MFB are endogenous to the liver, coming from hepatic stellate cells (HSC) and portal fibroblasts. Dysregulated inflammatory responses have been associated with most (if not all) hepatotoxic insults and chronic oxidative stress play a role during the initial liver inflammatory phase and its progression to fibrosis. Redox-regulated processes are responsible for activation of HSC to MFB, as well as maintenance of the MFB function. Increased oxidative stress also induces hepatocyte apoptosis, which contributes to increase the liver injury and to transdifferentiate HSC to MFB, favouring the fibrogenic process. Mitochondria and other redox-active enzymes can generate superoxide and hydrogen peroxide as a by-product in liver cells. Moreover, accumulating evidence indicates that NADPH oxidases (NOXs), which play a critical role in the inflammatory response, may contribute to reactive oxygen species (ROS) production during liver fibrosis, being important players in HSC activation and hepatocyte apoptosis. Based on the knowledge of the pathogenic role of ROS, different strategies to prevent or reverse the oxidative damage have been developed to be used as therapeutic tools in liver fibrosis. This review will update all these concepts, highlighting the relevance of redox biology in chronic fibrogenic liver pathologies. Oxidative stress is a major cause for initiation/progression of liver fibrosis. Redox-regulated processes activate hepatic stellate cells to myofibroblasts. Increased oxidative stress induces hepatocyte apoptosis. NOX inhibitors are considered as a new strategy to prevent/reverse liver fibrosis. NADPH oxidases (NOX) have been involved in liver fibrogenic responses.
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Affiliation(s)
- Eva Crosas-Molist
- Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet, Barcelona, Spain
| | - Isabel Fabregat
- Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet, Barcelona, Spain; Department of Physiological Sciences II, University of Barcelona, L'Hospitalet, Barcelona, Spain.
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20
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Aldini G, Domingues MR, Spickett CM, Domingues P, Altomare A, Sánchez-Gómez FJ, Oeste CL, Pérez-Sala D. Protein lipoxidation: Detection strategies and challenges. Redox Biol 2015; 5:253-266. [PMID: 26072467 PMCID: PMC4477048 DOI: 10.1016/j.redox.2015.05.003] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Revised: 05/14/2015] [Accepted: 05/19/2015] [Indexed: 12/21/2022] Open
Abstract
Enzymatic and non-enzymatic lipid metabolism can give rise to reactive species that may covalently modify cellular or plasma proteins through a process known as lipoxidation. Under basal conditions, protein lipoxidation can contribute to normal cell homeostasis and participate in signaling or adaptive mechanisms, as exemplified by lipoxidation of Ras proteins or of the cytoskeletal protein vimentin, both of which behave as sensors of electrophilic species. Nevertheless, increased lipoxidation under pathological conditions may lead to deleterious effects on protein structure or aggregation. This can result in impaired degradation and accumulation of abnormally folded proteins contributing to pathophysiology, as may occur in neurodegenerative diseases. Identification of the protein targets of lipoxidation and its functional consequences under pathophysiological situations can unveil the modification patterns associated with the various outcomes, as well as preventive strategies or potential therapeutic targets. Given the wide structural variability of lipid moieties involved in lipoxidation, highly sensitive and specific methods for its detection are required. Derivatization of reactive carbonyl species is instrumental in the detection of adducts retaining carbonyl groups. In addition, use of tagged derivatives of electrophilic lipids enables enrichment of lipoxidized proteins or peptides. Ultimate confirmation of lipoxidation requires high resolution mass spectrometry approaches to unequivocally identify the adduct and the targeted residue. Moreover, rigorous validation of the targets identified and assessment of the functional consequences of these modifications are essential. Here we present an update on methods to approach the complex field of lipoxidation along with validation strategies and functional assays illustrated with well-studied lipoxidation targets.
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Affiliation(s)
- Giancarlo Aldini
- Department of Pharmaceutical Sciences, Università degli Studi di Milano, Via Mangiagalli 25, 20133 Milan, Italy
| | - M Rosário Domingues
- Mass Spectrometry Centre, QOPNA, Department of Chemistry, University of Aveiro, Aveiro 3810-193, Portugal
| | - Corinne M Spickett
- School of Life and Health Sciences, Aston Triangle, Aston University, Birmingham B4 7ET, UK
| | - Pedro Domingues
- Mass Spectrometry Centre, QOPNA, Department of Chemistry, University of Aveiro, Aveiro 3810-193, Portugal
| | - Alessandra Altomare
- Department of Pharmaceutical Sciences, Università degli Studi di Milano, Via Mangiagalli 25, 20133 Milan, Italy
| | - Francisco J Sánchez-Gómez
- Department of Chemical and Physical Biology, Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu, 9, Madrid 28040, Spain
| | - Clara L Oeste
- Department of Chemical and Physical Biology, Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu, 9, Madrid 28040, Spain
| | - Dolores Pérez-Sala
- Department of Chemical and Physical Biology, Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu, 9, Madrid 28040, Spain.
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