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Skoczyńska A, Ołdakowska M, Dobosz A, Adamiec R, Gritskevich S, Jonkisz A, Lebioda A, Adamiec-Mroczek J, Małodobra-Mazur M, Dobosz T. PPARs in Clinical Experimental Medicine after 35 Years of Worldwide Scientific Investigations and Medical Experiments. Biomolecules 2024; 14:786. [PMID: 39062500 PMCID: PMC11275227 DOI: 10.3390/biom14070786] [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: 05/22/2024] [Revised: 06/27/2024] [Accepted: 06/28/2024] [Indexed: 07/28/2024] Open
Abstract
This year marks the 35th anniversary of Professor Walter Wahli's discovery of the PPARs (Peroxisome Proliferator-Activated Receptors) family of nuclear hormone receptors. To mark the occasion, the editors of the scientific periodical Biomolecules decided to publish a special issue in his honor. This paper summarizes what is known about PPARs and shows how trends have changed and how research on PPARs has evolved. The article also highlights the importance of PPARs and what role they play in various diseases and ailments. The paper is in a mixed form; essentially it is a review article, but it has been enriched with the results of our experiments. The selection of works was subjective, as there are more than 200,000 publications in the PubMed database alone. First, all papers done on an animal model were discarded at the outset. What remained was still far too large to describe directly. Therefore, only papers that were outstanding, groundbreaking, or simply interesting were described and briefly commented on.
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Affiliation(s)
- Anna Skoczyńska
- Department of Internal and Occupational Medicine and Hypertension, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland;
| | - Monika Ołdakowska
- Department of Forensic Medicine, Division of Molecular Techniques, Wroclaw Medical University, M. Sklodowskiej-Curie 52, 50-369 Wroclaw, Poland; (M.O.); (A.J.); (A.L.); (M.M.-M.); (T.D.)
| | - Agnieszka Dobosz
- Department of Basic Medical Sciences and Immunology, Division of Basic Medical Sciences, Wroclaw Medical University, Borowska 211, 50-556 Wrocław, Poland
| | - Rajmund Adamiec
- Department of Diabetology and Internal Medicine, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland;
- Department of Internal Medicine, Faculty of Medical and Technical Sciences, Karkonosze University of Applied Sciences, Lwówiecka 18, 58-506 Jelenia Góra, Poland
| | - Sofya Gritskevich
- Department of Forensic Medicine, Division of Molecular Techniques, Wroclaw Medical University, M. Sklodowskiej-Curie 52, 50-369 Wroclaw, Poland; (M.O.); (A.J.); (A.L.); (M.M.-M.); (T.D.)
| | - Anna Jonkisz
- Department of Forensic Medicine, Division of Molecular Techniques, Wroclaw Medical University, M. Sklodowskiej-Curie 52, 50-369 Wroclaw, Poland; (M.O.); (A.J.); (A.L.); (M.M.-M.); (T.D.)
| | - Arleta Lebioda
- Department of Forensic Medicine, Division of Molecular Techniques, Wroclaw Medical University, M. Sklodowskiej-Curie 52, 50-369 Wroclaw, Poland; (M.O.); (A.J.); (A.L.); (M.M.-M.); (T.D.)
| | - Joanna Adamiec-Mroczek
- Department of Ophthalmology, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland;
| | - Małgorzata Małodobra-Mazur
- Department of Forensic Medicine, Division of Molecular Techniques, Wroclaw Medical University, M. Sklodowskiej-Curie 52, 50-369 Wroclaw, Poland; (M.O.); (A.J.); (A.L.); (M.M.-M.); (T.D.)
| | - Tadeusz Dobosz
- Department of Forensic Medicine, Division of Molecular Techniques, Wroclaw Medical University, M. Sklodowskiej-Curie 52, 50-369 Wroclaw, Poland; (M.O.); (A.J.); (A.L.); (M.M.-M.); (T.D.)
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Liang G, Qin Z, Luo Y, Yin J, Shi Z, Wei R, Ma W. Exosomal microRNA-133b-3p from bone marrow mesenchymal stem cells inhibits angiogenesis and oxidative stress via FBN1 repression in diabetic retinopathy. Gene Ther 2022; 29:710-719. [PMID: 35125496 DOI: 10.1038/s41434-021-00310-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 11/28/2021] [Accepted: 12/07/2021] [Indexed: 01/09/2023]
Abstract
Diabetic retinopathy (DR) is a common microvascular complication. Many studies have focused on the role of microRNAs (miRNAs) in DR but not specifically on miR-133b-3p. Thus, this study is to unmask the mechanisms of miR-133b-3p in DR. KK/Upj-Ay mice (a spontaneous diabetic nephropathy model of DM, referred to as DR mice) were used in the study, and retinal tissues were collected. Bone marrow mesenchymal stem cells (BMSCs) were isolated and identified. High glucose (HG)-treated mouse retinal microvascular endothelial cells (mRMECs) were transfected or co-cultured with BMSCs-derived exosomes. Then, cell proliferation, migration, apoptosis, angiogenesis, and oxidative stress were observed. MiR-133b-3p and FBN1 expression in tissues and cells was detected. MiR-133b-3p expression was reduced, and FBN1 expression was increased in retinal tissues of DR mice and HG-treated mRMECs. Up-regulating miR-133b-3p or down-regulating FBN1 or BMSCs-derived exosomes impaired oxidative stress, angiogenesis, proliferation, migration, and promoted apoptosis of HG-treated mRMECs. This study has elucidated that exosomal miR-133b-3p from BMSCs suppresses angiogenesis and oxidative stress in DR via FBN1 repression.
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Affiliation(s)
- Gaohua Liang
- Department of Ophthalmology, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, Guangxi, China
| | - Zhiliang Qin
- Department of Ophthalmology, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, Guangxi, China
| | - Yanni Luo
- Department of Ophthalmology, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, Guangxi, China
| | - Jiayang Yin
- Department of Ophthalmology, The First Affiliated Hospital, Jinan University, Guangzhou, 510632, Guangdong, China
| | - Zhimin Shi
- Department of Ophthalmology, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, Guangxi, China
| | - Rizhang Wei
- Department of Ophthalmology, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, Guangxi, China
| | - Wenhao Ma
- Department of Ophthalmology, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, Guangxi, China.
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Fan X, Xu M, Ren Q, Fan Y, Liu B, Chen J, Wang Z, Sun X. Downregulation of fatty acid binding protein 4 alleviates lipid peroxidation and oxidative stress in diabetic retinopathy by regulating peroxisome proliferator-activated receptor γ-mediated ferroptosis. Bioengineered 2022; 13:10540-10551. [PMID: 35441580 PMCID: PMC9161966 DOI: 10.1080/21655979.2022.2062533] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
This study aims to explore the role of fatty acid binding protein 4 (FABP4) in diabetic retinopathy (DR), and to elucidate the potential regulatory mechanism. We firstly developed a mouse model of DR by injection with streptozocin (STZ) into C57BL/6 male mice and a cell model of DR by induction of high glucose (HG) to ARPE-19 cells. BMS309403, an inhibitor of FABP4, was employed for treatment. The blood glucose in vivo was monitored and the histological changes of retinal tissues were observed by hematoxylin and eosin staining and Evans blue assay. The expression level of FABP4 was detected by western blot and Immunohistochemical staining. The critical factors related to lipid peroxidation and oxidative stress were detected using their commercial kits, respectively. Prussian blue staining, iron content assay and thiobarbituric acid-reactive substances (TBARS) assay were conducted to evaluate ferroptosis. As a result, FABP4 was elevated in retina and serum of STZ-induced mice and in HG-induced ARPE-19 cells. BMS309403 treatment notably alleviated reduced blood glucose, reduced histological damage, and vascular permeability. In addition, BMS309403 treatment inhibited lipid peroxidation, oxidative stress, and ferroptosis both in vivo and in vitro. Furthermore, BMS309403 promoted the activation of peroxisome proliferator-activated receptor γ (PPARγ). GW9662 (an inhibitor of PPARγ) or Erastin (an inducer of ferroptosis) partially weakened the suppressive effects of BMS309403 on HG-induced lipid peroxidation, oxidative stress and ferroptosis. Taken together, FABP4 inhibition alleviates lipid peroxidation and oxidative stress in DR by regulating PPARγ-mediated ferroptosis.
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Affiliation(s)
- Xiao'e Fan
- Department of Ophthalmology, Jincheng People's Hospital, Jincheng, Shanxi Province, China
| | - Manhong Xu
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Qianfeng Ren
- Department of Pathology, Jincheng People's Hospital, Shanxi Province, China
| | - Yan Fan
- Department of Ophthalmology, Jincheng People's Hospital, Jincheng, Shanxi Province, China
| | - Boshi Liu
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Jiaqi Chen
- Department of Ophthalmology, Jincheng People's Hospital, Jincheng, Shanxi Province, China
| | - Zhengmin Wang
- Department of Ophthalmology, Jincheng People's Hospital, Jincheng, Shanxi Province, China
| | - Xiaoyan Sun
- Department of Ophthalmology, Jincheng People's Hospital, Jincheng, Shanxi Province, China
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Alaaeddine RA, Elzahhar PA, AlZaim I, Abou-Kheir W, Belal ASF, El-Yazbi AF. The Emerging Role of COX-2, 15-LOX and PPARγ in Metabolic Diseases and Cancer: An Introduction to Novel Multi-target Directed Ligands (MTDLs). Curr Med Chem 2021; 28:2260-2300. [PMID: 32867639 DOI: 10.2174/0929867327999200820173853] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 07/15/2020] [Accepted: 07/15/2020] [Indexed: 11/22/2022]
Abstract
Emerging evidence supports an intertwining framework for the involvement of different inflammatory pathways in a common pathological background for a number of disorders. Of importance are pathways involving arachidonic acid metabolism by cyclooxygenase-2 (COX-2) and 15-lipoxygenase (15-LOX). Both enzyme activities and their products are implicated in a range of pathophysiological processes encompassing metabolic impairment leading to adipose inflammation and the subsequent vascular and neurological disorders, in addition to various pro- and antitumorigenic effects. A further layer of complexity is encountered by the disparate, and often reciprocal, modulatory effect COX-2 and 15-LOX activities and metabolites exert on each other or on other cellular targets, the most prominent of which is peroxisome proliferator-activated receptor gamma (PPARγ). Thus, effective therapeutic intervention with such multifaceted disorders requires the simultaneous modulation of more than one target. Here, we describe the role of COX-2, 15-LOX, and PPARγ in cancer and complications of metabolic disorders, highlight the value of designing multi-target directed ligands (MTDLs) modifying their activity, and summarizing the available literature regarding the rationale and feasibility of design and synthesis of these ligands together with their known biological effects. We speculate on the potential impact of MTDLs in these disorders as well as emphasize the need for structured future effort to translate these early results facilitating the adoption of these, and similar, molecules in clinical research.
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Affiliation(s)
- Rana A Alaaeddine
- Department of Pharmacology and Toxicology, Faculty of Medicine, The American University of Beirut, Beirut, Lebanon
| | - Perihan A Elzahhar
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Ibrahim AlZaim
- Department of Pharmacology and Toxicology, Faculty of Medicine, The American University of Beirut, Beirut, Lebanon
| | - Wassim Abou-Kheir
- Department of Anatomy, Cell Biology, and Physiological Sciences, Faculty of Medicine, The American University of Beirut, Beirut, Lebanon
| | - Ahmed S F Belal
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Ahmed F El-Yazbi
- Department of Pharmacology and Toxicology, Faculty of Medicine, The American University of Beirut, Beirut, Lebanon
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Li XF, Jiang GB, Cheng SY, Song YF, Deng C, Niu YM, Cai JW. Association between PPAR-γ2 gene polymorphisms and diabetic retinopathy risk: a meta-analysis. Aging (Albany NY) 2021; 13:5136-5149. [PMID: 33535175 PMCID: PMC7950267 DOI: 10.18632/aging.202433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Accepted: 12/09/2020] [Indexed: 11/29/2022]
Abstract
A close association between peroxisome proliferator-activated receptor-γ2 (PPAR-γ2) and the development of diabetic retinopathy (DR) has been previously suggested. Herein, a meta-analysis was conducted to explore the association between PPAR-γ2 polymorphisms and DR risk by performing a systematic search and quantitative analysis. Overall, fourteen articles involving 10,527 subjects were included. The pooled results did not reveal an association between PPAR-γ2 rs1801282 C/G and DR susceptibility in the overall population (e.g., the dominant model: CG+GG vs. CC, OR=0.85, 95% CI=0.69-1.06, P=0.15, I2=62.9%). Furthermore, heterogeneity tests, cumulative analyses, sensitivity analyses, and publication bias analyses were conducted and showed that the results were robust. Similarly, race-based subgroup analyses and other subgroup analyses did not reveal an association between the rs1801282 C/G and DR susceptibility. In addition, no significant association was observed between PPAR-γ2 rs3856806 C/T polymorphism and DR risk (e.g., the dominant model: CT+TT vs. CC, OR=1.12, 95%CI=0.91-1.37, P=0.28, I2=27.0%). Overall, based on the current sample size and the level of evidence presented in the study, the results suggest that PPAR-γ2 gene polymorphisms are not associated with DR risk.
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Affiliation(s)
- Xue-Feng Li
- Department of Endocrinology, Taihe Hospital, Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan 442000, China
| | - Guang-Bin Jiang
- Department of Radiology, Suizhou Hospital, Hubei University of Medicine, Suizhou Central Hospital, Suizhou 441300, China
| | - Shi-Yan Cheng
- Department of Respiratory Medicine, Suizhou Hospital, Hubei University of Medicine, Suizhou Central Hospital, Suizhou 441300, China
| | - Ya-Feng Song
- The Personnel Section, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, China
| | - Cai Deng
- Department of Stomatology, Evidence-Based Medicine and Clinical Research, Taihe Hospital, Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan 442000, P.R. China
| | - Yu-Ming Niu
- Department of Endocrinology, Taihe Hospital, Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan 442000, China.,Department of Stomatology, Evidence-Based Medicine and Clinical Research, Taihe Hospital, Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan 442000, P.R. China
| | - Jun-Wei Cai
- Department of Endocrinology, Taihe Hospital, Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan 442000, China
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Aprile M, Cataldi S, Perfetto C, Ambrosio MR, Italiani P, Tatè R, Blüher M, Ciccodicola A, Costa V. In-Vitro-Generated Hypertrophic-Like Adipocytes Displaying PPARG Isoforms Unbalance Recapitulate Adipocyte Dysfunctions In Vivo. Cells 2020; 9:cells9051284. [PMID: 32455814 PMCID: PMC7290899 DOI: 10.3390/cells9051284] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/18/2020] [Accepted: 05/19/2020] [Indexed: 12/30/2022] Open
Abstract
Reduced neo-adipogenesis and dysfunctional lipid-overloaded adipocytes are hallmarks of hypertrophic obesity linked to insulin resistance. Identifying molecular features of hypertrophic adipocytes requires appropriate in vitro models. We describe the generation of a model of human hypertrophic-like adipocytes directly comparable to normal adipose cells and the pathologic evolution toward hypertrophic state. We generate in vitro hypertrophic cells from mature adipocytes, differentiated from human mesenchymal stem cells. Combining optical, confocal, and transmission electron microscopy with mRNA/protein quantification, we characterize this cellular model, confirming specific alterations also in subcutaneous adipose tissue. Specifically, we report the generation and morphological/molecular characterization of human normal and hypertrophic-like adipocytes. The latter displays altered morphology and unbalance between canonical and dominant negative (PPARGΔ5) transcripts of PPARG, paralleled by reduced expression of PPARγ targets, including GLUT4. Furthermore, the unbalance of PPARγ isoforms associates with GLUT4 down-regulation in subcutaneous adipose tissue of individuals with overweight/obesity or impaired glucose tolerance/type 2 diabetes, but not with normal weight or glucose tolerance. In conclusion, the hypertrophic-like cells described herein are an innovative tool for studying molecular dysfunctions in hypertrophic obesity and the unbalance between PPARγ isoforms associates with down-regulation of GLUT4 and other PPARγ targets, representing a new hallmark of hypertrophic adipocytes.
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Affiliation(s)
- Marianna Aprile
- Institute of Genetics and Biophysics “Adriano Buzzati-Traverso,” CNR, Via P. Castellino 111, 80131 Naples, Italy; (S.C.); (C.P.); (R.T.); (A.C.)
- Correspondence: (M.A.); (V.C.)
| | - Simona Cataldi
- Institute of Genetics and Biophysics “Adriano Buzzati-Traverso,” CNR, Via P. Castellino 111, 80131 Naples, Italy; (S.C.); (C.P.); (R.T.); (A.C.)
| | - Caterina Perfetto
- Institute of Genetics and Biophysics “Adriano Buzzati-Traverso,” CNR, Via P. Castellino 111, 80131 Naples, Italy; (S.C.); (C.P.); (R.T.); (A.C.)
| | - Maria Rosaria Ambrosio
- Department of Translational Medicine, University of Naples “Federico II” & URT “Genomic of Diabetes,” Institute of Experimental Endocrinology and Oncology “G. Salvatore,” CNR, Via Pansini 5, 80131 Naples, Italy;
| | - Paola Italiani
- Institute of Biochemistry and Cell Biology CNR, Via P. Castellino 111, 80131 Naples, Italy;
| | - Rosarita Tatè
- Institute of Genetics and Biophysics “Adriano Buzzati-Traverso,” CNR, Via P. Castellino 111, 80131 Naples, Italy; (S.C.); (C.P.); (R.T.); (A.C.)
| | - Matthias Blüher
- Department of Medicine, University of Leipzig, 4289 Leipzig, Germany;
| | - Alfredo Ciccodicola
- Institute of Genetics and Biophysics “Adriano Buzzati-Traverso,” CNR, Via P. Castellino 111, 80131 Naples, Italy; (S.C.); (C.P.); (R.T.); (A.C.)
- Department of Science and Technology, University of Naples “Parthenope,” 80131 Naples, Italy
| | - Valerio Costa
- Institute of Genetics and Biophysics “Adriano Buzzati-Traverso,” CNR, Via P. Castellino 111, 80131 Naples, Italy; (S.C.); (C.P.); (R.T.); (A.C.)
- Correspondence: (M.A.); (V.C.)
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Yao PL, Peavey J, Malek G. Leveraging Nuclear Receptors as Targets for Pathological Ocular Vascular Diseases. Int J Mol Sci 2020; 21:ijms21082889. [PMID: 32326149 PMCID: PMC7215709 DOI: 10.3390/ijms21082889] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 04/18/2020] [Accepted: 04/19/2020] [Indexed: 02/07/2023] Open
Abstract
Vasculogenesis and angiogenesis are physiological mechanisms occurring throughout the body. Any disruption to the precise balance of blood vessel growth necessary to support healthy tissue, and the inhibition of abnormal vessel sprouting has the potential to negatively impact stages of development and/or healing. Therefore, the identification of key regulators of these vascular processes is critical to identifying therapeutic means by which to target vascular-associated compromises and complications. Nuclear receptors are a family of transcription factors that have been shown to be involved in modulating different aspects of vascular biology in many tissues systems. Most recently, the role of nuclear receptors in ocular biology and vasculopathies has garnered interest. Herein, we review studies that have used in vitro assays and in vivo models to investigate nuclear receptor-driven pathways in two ocular vascular diseases associated with blindness, wet or exudative age-related macular degeneration, and proliferative diabetic retinopathy. The potential therapeutic targeting of nuclear receptors for ocular diseases is also discussed.
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Affiliation(s)
- Pei-Li Yao
- Duke Eye Center, Department of Ophthalmology, Duke University School of Medicine, Durham, NC 27503, USA; (P.-L.Y.); (J.P.)
| | - Jeremy Peavey
- Duke Eye Center, Department of Ophthalmology, Duke University School of Medicine, Durham, NC 27503, USA; (P.-L.Y.); (J.P.)
| | - Goldis Malek
- Duke Eye Center, Department of Ophthalmology, Duke University School of Medicine, Durham, NC 27503, USA; (P.-L.Y.); (J.P.)
- Department of Pathology, Duke University School of Medicine, Durham, NC 27503, USA
- Correspondence: ; Tel.: +919-684-0820
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Systems-Pharmacology-Based Identification of Antitumor Necrosis Factor Effect in Mimeng Flower Decoction for the Treatment of Diabetic Retinopathy. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:5107103. [PMID: 31827551 PMCID: PMC6885793 DOI: 10.1155/2019/5107103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 09/14/2019] [Accepted: 10/22/2019] [Indexed: 11/30/2022]
Abstract
The traditional Chinese medicine of Mimeng flower decoction (MFD) is effective in treating diabetic retinopathy (DR), but the mechanism is still unclear. This study aims at investigating the mechanism of MFD in treating DR. First, active compounds in MFD were filtered out by the systems pharmacology method and used as bait to fish potential targets. The common genes between the targets and DR-related genes were selected to construct the compound-target-disease network and identify the network hub gene as a key gene. Molecular docking was simulated to assess the binding affinity of active compounds towards the gene protein. Streptozotocin- (STZ-) induced diabetic rat model was administered to evaluate the efficacy of MFD in treating DR and its effects on retinal gene expression. Finally, 53 active compounds were screened out from the seven herbs in MFD, with a total of 136 targets. After intersecting with 210 DR-related genes, 21 common genes were applied to construct the network, and tumor necrosis factor (TNF) was identified as the hub gene. The active compounds of acacetin, kaempferol, luteolin, and quercetin showed a good binding affinity towards TNF (C-score ≥ 4). In diabetic rats, MFD treatment reversed the retinal impairment and decreased retinal TNF expression significantly. In conclusion, this study adopted the method of systems pharmacology to screen out active compounds and construct the compound-target-disease network and found that MFD could ameliorate DR by downregulating the network hub gene of TNF.
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Castelli V, d'Angelo M, Antonosante A, Catanesi M, Benedetti E, Desideri G, Cimini A. Physiology and Pathophysiology of PPARs in the Eye. NUCLEAR RECEPTOR RESEARCH 2018. [DOI: 10.11131/2018/101370] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Affiliation(s)
- Vanessa Castelli
- Department of Life, Health and Environmental Sciences, University of L'Aquila, Italy
| | - Michele d'Angelo
- Department of Life, Health and Environmental Sciences, University of L'Aquila, Italy
| | - Andrea Antonosante
- Department of Life, Health and Environmental Sciences, University of L'Aquila, Italy
| | - Mariano Catanesi
- Department of Life, Health and Environmental Sciences, University of L'Aquila, Italy
| | - Elisabetta Benedetti
- Department of Life, Health and Environmental Sciences, University of L'Aquila, Italy
| | | | - Annamaria Cimini
- Department of Life, Health and Environmental Sciences, University of L'Aquila, Italy
- Sbarro Institute for Cancer Research and Molecular Medicine, Department of Biology, Temple University, Philadelphia, USA
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Choudhary M, Malek G. Rethinking Nuclear Receptors as Potential Therapeutic Targets for Retinal Diseases. ACTA ACUST UNITED AC 2016; 21:1007-1018. [PMID: 27455994 DOI: 10.1177/1087057116659856] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Collectively, retinal diseases, including age-related macular degeneration, retinitis pigmentosa, and diabetic retinopathy, result in severe vision impairment worldwide. The absence and/or limited availability of successful drug therapies for these blinding disorders necessitates further understanding their pathobiology and identifying new targetable signaling pathways. Nuclear receptors are transcription regulators of many key aspects of human physiology, as well as pathophysiology, with reported roles in development, aging, and disease. Some of the pathways regulated by nuclear receptors include, but are not limited to, angiogenesis, inflammation, and lipid metabolic dysregulation, mechanisms also important in the initiation and development of several retinal diseases. Herein, we present an overview of the biology of three diseases affecting the posterior eye, summarize a growing body of evidence that suggests direct or indirect involvement of nuclear receptors in disease progression, and discuss the therapeutic potential of targeting nuclear receptors for treatment.
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Affiliation(s)
- Mayur Choudhary
- 1 Department of Ophthalmology, Duke University School of Medicine, Durham, NC, USA
| | - Goldis Malek
- 1 Department of Ophthalmology, Duke University School of Medicine, Durham, NC, USA.,2 Department of Pathology, Duke University School of Medicine, Durham, NC, USA
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Implications of the endogenous PPAR-gamma ligand, 15-deoxy-delta-12, 14-prostaglandin J2, in diabetic retinopathy. Life Sci 2016; 153:93-9. [PMID: 27060220 DOI: 10.1016/j.lfs.2016.03.054] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 03/24/2016] [Accepted: 03/29/2016] [Indexed: 01/09/2023]
Abstract
Diabetic retinopathy, a common secondary complication of diabetes mellitus, involves extensive damage to the retinal microvasculature. Retina, being a susceptible target, is highly prone to hyperglycemia-induced molecular damages. PPAR receptor, chiefly gamma subtype, mediates numerous responses related to glucose metabolism and hence is utilized, through its agonism, for the restoration of normal insulin sensitivity and glucose homeostasis in the body. Although a number of synthetic PPAR-gamma receptor agonists have been developed and are being employed for treatment purposes, the role of its endogenous ligand in the prevention of diabetic retinopathy is poorly acknowledged. Activation of PPAR-gamma receptor, via endogenous agents, provides a natural defensive shield against various hyperglycemia-induced pathological conditions. Although the biological levels of 15d-PGJ2 (an endogenous agonist of PPAR-gamma receptor) are found to be below the concentration required to trigger PPAR-gamma-mediated actions, employment of several advanced methods for the exogenous administration of this ligand might provide a beneficial option. Besides, 15d-PGJ2-induced defense is better than any of the newly developed alternative therapies, such as anti-inflammatory, anti-angiogenic or anti-apoptotic agents, of diabetic retinopathy, since it singularly provides, virtually, a complete protection package against all these pathological eventualities. Therefore, the physiology of this endogenous PPAR-gamma ligand might, possibly, be exploited to a great extent for the development of prophylactic agents, in order to restrict the progression of diabetic retinopathy.
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Wan TT, Li XF, Sun YM, Li YB, Su Y. Recent advances in understanding the biochemical and molecular mechanism of diabetic retinopathy. Biomed Pharmacother 2015; 74:145-7. [DOI: 10.1016/j.biopha.2015.08.002] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2015] [Accepted: 08/02/2015] [Indexed: 01/07/2023] Open
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Choe EY, Wang HJ, Kwon O, Kim KJ, Kim BS, Lee BW, Ahn CW, Cha BS, Lee HC, Kang ES, Mantzoros CS. Variants of the adiponectin gene and diabetic microvascular complications in patients with type 2 diabetes. Metabolism 2013; 62:677-85. [PMID: 23260797 DOI: 10.1016/j.metabol.2012.11.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Revised: 11/12/2012] [Accepted: 11/16/2012] [Indexed: 10/27/2022]
Abstract
OBJECTIVE The aim of this study was to examine the association between common polymorphisms of the adiponectin gene (ADIPOQ) and microvascular complications in patients with type 2 diabetes mellitus (T2DM). RESEARCH DESIGN AND METHODS Rs2241766 and rs1501299 of ADIPOQ were genotyped in 708 patients with T2DM. Fundus photography, nerve conducting velocity, and urine analysis were performed to check for the presence of microvascular complications including diabetic nephropathy, retinopathy and neuropathy. RESULTS The prevalence of diabetic nephropathy tended to be different according to rs2241766 genotype (p=0.057) and the GG genotype of rs2241766 was associated with diabetic nephropathy [urine albumin/creatinine ratio (UACR) greater than 30 mg/g] after adjusting for age, sex, body mass index, duration of diabetes, HDL-cholesterol, smoking status, and blood pressure (odds ratio=1.96; 95% confidence interval=1.01-3.82, p=0.049). Also, the G allele of rs2241766 demonstrated a trend to be associated with an increase in UACR (p=0.087). Rs2241766 genotype was not associated with diabetic retinopathy (p=0.955) and neuropathy (p=0.104) or any diabetic microvascular complications (p=0.104). There was no significant association between the rs1501299 genotype of ADIPOQ and the prevalence of diabetic retinopathy and neuropathy or any diabetic microvascular complications even after adjustment. CONCLUSION These data suggest that the GG genotype at rs2241766 is implicated in the pathogenesis of risk for diabetic nephropathy defined as UACR greater than 30 mg/day in patients with T2DM.
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Affiliation(s)
- Eun Yeong Choe
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Yonsei University College of Medicine, Seoul 120-752, Korea
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