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Wang HJ, Ma L, Yu Q. Cited2 inhibited hypoxia-induced proliferation and migration of PASMCs via the TGF-β1/Cited2/PPARγ pathway. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2024; 27:509-517. [PMID: 38419888 PMCID: PMC10897560 DOI: 10.22038/ijbms.2023.74455.16178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Accepted: 11/08/2023] [Indexed: 03/02/2024]
Abstract
Objectives Proliferation and migration of pulmonary artery smooth muscle cells (PASMCs) contribute to hypoxia-induced pulmonary hypertension (HPH). The transcription factor Cbp/p300-interacting transactivator with Glu/Asp-rich carboxy-terminal domain 2 (Cited2) has been implicated in the control of tumor cells and mesenchymal stem cell (MSC) and cardiomyocyte growth or migration. Whether Cited2 is involved in the proliferation and migration of PASMCs and the underlying mechanisms deserve to be explored. Materials and Methods Cited2 expression was detected in rat PASMCs under hypoxia conditions and HPH rat models. The effect of Cited2 on the proliferation and migration of PASMC was detected by overexpression or knockdown of the Cited2 gene. After PAMSCs were treated with recombinant TGF-β1 and the lentivirus vector overexpressing Cited2, expression of peroxisome proliferator-activated receptor gamma (PPARγ) was examined by western blotting. Results We revealed that hypoxia down-regulated the expression of Cited2 in PASMCs and rat pulmonary arteries. Cited2 overexpression inhibited the proliferation and migration of PASMCs under hypoxia, while Cited2 knockdown induced the proliferation and migration of PASMCs. Cited2 inhibits the negative regulation of the TGF-β1 pathway on PPARγ to inhibit the proliferation and migration of PASMCs. Conclusion These findings suggest that increased Cited2 expression contributes to the inhibition of PASMCs proliferation and migration by regulating TGF-β1-mediated target gene expression in HPH and provides a new target for molecular therapy of HPH.
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Affiliation(s)
- Hong-Juan Wang
- The First School of Clinical Medicine, Lanzhou University, Lanzhou 730000, Gansu, China
- Department of Respiratory Medicine, Gansu Provincial Hospital, Lanzhou 730000, Gansu, China
| | - Lan Ma
- Department of Plateau Medical Center, Qinghai University, Xining 810000, Qinghai, China
| | - Qin Yu
- The First School of Clinical Medicine, Lanzhou University, Lanzhou 730000, Gansu, China
- Department of Respiratory Medicine, The First Hospital of Lanzhou University, Lanzhou 730000, Gansu, China
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2
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Distefano R, Ilieva M, Madsen JH, Ishii H, Aikawa M, Rennie S, Uchida S. T2DB: A Web Database for Long Non-Coding RNA Genes in Type II Diabetes. Noncoding RNA 2023; 9:30. [PMID: 37218990 PMCID: PMC10204529 DOI: 10.3390/ncrna9030030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/01/2023] [Accepted: 05/04/2023] [Indexed: 05/24/2023] Open
Abstract
Type II diabetes (T2D) is a growing health problem worldwide due to increased levels of obesity and can lead to other life-threatening diseases, such as cardiovascular and kidney diseases. As the number of individuals diagnosed with T2D rises, there is an urgent need to understand the pathogenesis of the disease in order to prevent further harm to the body caused by elevated blood glucose levels. Recent advances in long non-coding RNA (lncRNA) research may provide insights into the pathogenesis of T2D. Although lncRNAs can be readily detected in RNA sequencing (RNA-seq) data, most published datasets of T2D patients compared to healthy donors focus only on protein-coding genes, leaving lncRNAs to be undiscovered and understudied. To address this knowledge gap, we performed a secondary analysis of published RNA-seq data of T2D patients and of patients with related health complications to systematically analyze the expression changes of lncRNA genes in relation to the protein-coding genes. Since immune cells play important roles in T2D, we conducted loss-of-function experiments to provide functional data on the T2D-related lncRNA USP30-AS1, using an in vitro model of pro-inflammatory macrophage activation. To facilitate lncRNA research in T2D, we developed a web application, T2DB, to provide a one-stop-shop for expression profiling of protein-coding and lncRNA genes in T2D patients compared to healthy donors or subjects without T2D.
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Affiliation(s)
- Rebecca Distefano
- Section for Computational and RNA Biology, Department of Biology, University of Copenhagen, DK-2200 Copenhagen, Denmark;
| | - Mirolyuba Ilieva
- Center for RNA Medicine, Department of Clinical Medicine, Aalborg University, DK-2450 Copenhagen, Denmark; (M.I.); (J.H.M.)
| | - Jens Hedelund Madsen
- Center for RNA Medicine, Department of Clinical Medicine, Aalborg University, DK-2450 Copenhagen, Denmark; (M.I.); (J.H.M.)
| | - Hideshi Ishii
- Center of Medical Innovation and Translational Research, Department of Medical Data Science, Graduate School of Medicine, Osaka University, Suita 565-0871, Japan;
| | - Masanori Aikawa
- Center for Interdisciplinary Cardiovascular Sciences, Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA;
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
- Center for Excellence in Vascular Biology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Sarah Rennie
- Section for Computational and RNA Biology, Department of Biology, University of Copenhagen, DK-2200 Copenhagen, Denmark;
| | - Shizuka Uchida
- Center for RNA Medicine, Department of Clinical Medicine, Aalborg University, DK-2450 Copenhagen, Denmark; (M.I.); (J.H.M.)
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3
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Lu M, Liu Y, Xian Z, Yu X, Chen J, Tan S, Zhang P, Guo Y. VEGF to CITED2 ratio predicts the collateral circulation of acute ischemic stroke. Front Neurol 2022; 13:1000992. [PMID: 36247751 PMCID: PMC9563238 DOI: 10.3389/fneur.2022.1000992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 08/24/2022] [Indexed: 11/30/2022] Open
Abstract
Objective The research objective was to evaluate the predicting role of the vascular endothelial growth factor to CBP/P300-interacting transactivator with Glu/Asp-rich C-terminal domain 2 Ratio (VEGF/CITED2) from peripheral blood mononuclear cells (PBMCs) in the collateral circulation of acute ischemic stroke (AIS). Methods In an observational study of patients with AIS, the western blot was applied to test the protein expression of VEGF and CITED2. Then, we calculated the VEGF/CITED2 and collected other clinical data. Binary logistic regression analysis between collateral circulation and clinical data was performed. Finally, receiver operating characteristic (ROC) curve analysis was used to explore the predictive value of VEGF/CITED2. Results A total of 67 patients with AIS were included in the study. Binary logistic regression analysis indicated the VEGF/CITED2 (OR 165.79, 95%CI 7.25–3,791.54, P = 0.001) was an independent protective factor. The ROC analyses showed an area under the ROC curve of the VEGF/CITED2 was 0.861 (95%CI 0.761–0.961). The optimal cutoff value of 1.013 for VEGF/CITED2 had a sensitivity of 89.1% and a specificity of 85.7%. Conclusion In patients with AIS, the VEGF/CITED2 was related to the establishment of collateral circulation. The VEGF/CITED2 is a potentially valuable biomarker for predicting collateral circulation. Clinical trial registration ClinicalTrials.gov, identifier: NCT05345366.
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Affiliation(s)
- Minyi Lu
- Department of Neurology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yuben Liu
- Department of Neurology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Zhiqiang Xian
- Department of Neurology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Xiaoyao Yu
- Department of Neurology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Jian Chen
- Department of Neurology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Sheng Tan
- Department of Neurology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Peidong Zhang
- Department of Cardiology, Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
- *Correspondence: Peidong Zhang
| | - Yang Guo
- Department of Neurology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
- Yang Guo
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4
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Rathjen T, Kunkemoeller B, Cederquist CT, Wang X, Lockhart SM, Patti JC, Willenbrock H, Olsen GS, Povlsen GK, Beck HC, Rasmussen LM, Li Q, Park K, King GL, Rask-Madsen C. Endothelial Cell Insulin Signaling Regulates CXCR4 (C-X-C Motif Chemokine Receptor 4) and Limits Leukocyte Adhesion to Endothelium. Arterioscler Thromb Vasc Biol 2022; 42:e217-e227. [PMID: 35652755 PMCID: PMC9371472 DOI: 10.1161/atvbaha.122.317476] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND An activated, proinflammatory endothelium is a key feature in the development of complications of obesity and type 2 diabetes and can be caused by insulin resistance in endothelial cells. METHODS We analyzed primary human endothelial cells by RNA sequencing to discover novel insulin-regulated genes and used endothelial cell culture and animal models to characterize signaling through CXCR4 (C-X-C motif chemokine receptor 4) in endothelial cells. RESULTS CXCR4 was one of the genes most potently regulated by insulin, and this was mediated by PI3K (phosphatidylinositol 3-kinase), likely through FoxO1, which bound to the CXCR4 promoter. CXCR4 mRNA in CD31+ cells was 77% higher in mice with diet-induced obesity compared with lean controls and 37% higher in db/db mice than db/+ controls, consistent with upregulation of CXCR4 in endothelial cell insulin resistance. SDF-1 (stromal cell-derived factor-1)-the ligand for CXCR4-increased leukocyte adhesion to cultured endothelial cells. This effect was lost after deletion of CXCR4 by gene editing while 80% of the increase was prevented by treatment of endothelial cells with insulin. In vivo microscopy of mesenteric venules showed an increase in leukocyte rolling after intravenous injection of SDF-1, but most of this response was prevented in transgenic mice with endothelial overexpression of IRS-1 (insulin receptor substrate-1). CONCLUSIONS Endothelial cell insulin signaling limits leukocyte/endothelial cell interaction induced by SDF-1 through downregulation of CXCR4. Improving insulin signaling in endothelial cells or inhibiting endothelial CXCR4 may reduce immune cell recruitment to the vascular wall or tissue parenchyma in insulin resistance and thereby help prevent several vascular complications.
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Affiliation(s)
- Thomas Rathjen
- Joslin Diabetes Center and Harvard Medical School, Boston, MA (T.R., B.K., C.T.C., X.W., S.M.L., J.C.P., Q.L., K.P., G.L.K., C.R.-M.).,Novo Nordisk A/S, Måløv, Denmark (T.R., H.W., G.S.O., G.K.P.)
| | - Britta Kunkemoeller
- Joslin Diabetes Center and Harvard Medical School, Boston, MA (T.R., B.K., C.T.C., X.W., S.M.L., J.C.P., Q.L., K.P., G.L.K., C.R.-M.)
| | - Carly T Cederquist
- Joslin Diabetes Center and Harvard Medical School, Boston, MA (T.R., B.K., C.T.C., X.W., S.M.L., J.C.P., Q.L., K.P., G.L.K., C.R.-M.)
| | - Xuanchun Wang
- Joslin Diabetes Center and Harvard Medical School, Boston, MA (T.R., B.K., C.T.C., X.W., S.M.L., J.C.P., Q.L., K.P., G.L.K., C.R.-M.)
| | - Sam M Lockhart
- Joslin Diabetes Center and Harvard Medical School, Boston, MA (T.R., B.K., C.T.C., X.W., S.M.L., J.C.P., Q.L., K.P., G.L.K., C.R.-M.)
| | - James C Patti
- Joslin Diabetes Center and Harvard Medical School, Boston, MA (T.R., B.K., C.T.C., X.W., S.M.L., J.C.P., Q.L., K.P., G.L.K., C.R.-M.)
| | | | | | | | | | | | - Qian Li
- Joslin Diabetes Center and Harvard Medical School, Boston, MA (T.R., B.K., C.T.C., X.W., S.M.L., J.C.P., Q.L., K.P., G.L.K., C.R.-M.)
| | - Kyoungmin Park
- Joslin Diabetes Center and Harvard Medical School, Boston, MA (T.R., B.K., C.T.C., X.W., S.M.L., J.C.P., Q.L., K.P., G.L.K., C.R.-M.)
| | - George L King
- Joslin Diabetes Center and Harvard Medical School, Boston, MA (T.R., B.K., C.T.C., X.W., S.M.L., J.C.P., Q.L., K.P., G.L.K., C.R.-M.)
| | - Christian Rask-Madsen
- Joslin Diabetes Center and Harvard Medical School, Boston, MA (T.R., B.K., C.T.C., X.W., S.M.L., J.C.P., Q.L., K.P., G.L.K., C.R.-M.)
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5
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Black Tea Reduces Diet-Induced Obesity in Mice via Modulation of Gut Microbiota and Gene Expression in Host Tissues. Nutrients 2022; 14:nu14081635. [PMID: 35458198 PMCID: PMC9027533 DOI: 10.3390/nu14081635] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 04/06/2022] [Accepted: 04/08/2022] [Indexed: 12/17/2022] Open
Abstract
Black tea was reported to alter the microbiome populations and metabolites in diet-induced obese mice and displays properties that prevent obesity, but the underlying mechanism of the preventative effect of black tea on high-fat diet (HFD) induced obesity has not been elucidated. Epigenetic studies are a useful tool for determining the relationship between obesity and environment. Here, we show that the water extract of black tea (Lapsang souchong, LS) reverses HFD-induced gut dysbiosis, alters the tissue gene expression, changes the level of a major epigenetic modification (DNA methylation), and prevents obesity in HFD feeding mice. The anti-obesity properties of black tea are due to alkaloids, which are the principal active components. Our data indicate that the anti-obesity benefits of black tea are transmitted via fecal transplantation, and the change of tissue gene expression and the preventative effects on HFD-induced obesity in mice of black tea are dependent on the gut microbiota. We further show that black tea could regulate the DNA methylation of imprinted genes in the spermatozoa of high-fat diet mice. Our results show a mechanistic link between black tea, changes in the gut microbiota, epigenetic processes, and tissue gene expression in the modulation of diet-induced metabolic dysfunction.
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6
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Kunkemoeller B, Chen K, Lockhart SM, Wang X, Rask-Madsen C. The transcriptional coregulator CITED2 suppresses expression of IRS-2 and impairs insulin signaling in endothelial cells. Am J Physiol Endocrinol Metab 2021; 321:E252-E259. [PMID: 34151583 PMCID: PMC8410099 DOI: 10.1152/ajpendo.00435.2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Endothelial cell insulin resistance contributes to the development of vascular complications in diabetes. Hypoxia-inducible factors (HIFs) modulate insulin sensitivity, and we have previously shown that a negative regulator of HIF activity, CREB-binding protein/p300 (CBP/p300) interacting transactivator-2 (CITED2), is increased in the vasculature of people with type 2 diabetes. Therefore, we examined whether CITED2 regulates endothelial insulin sensitivity. In endothelial cells isolated from mice with a "floxed" mutation in the Cited2 gene, loss of CITED2 markedly enhanced insulin-stimulated Akt phosphorylation without altering extracellular signal-related kinase 1/2 (ERK1/2) phosphorylation. Similarly, insulin-stimulated Akt phosphorylation was increased in aortas of mice with endothelial-specific deletion of CITED2. Consistent with these observations, loss of CITED2 in endothelial cells increased insulin-stimulated endothelial nitric oxide synthase phosphorylation, Vegfa expression, and cell proliferation. Endothelial cells lacking CITED2 exhibited an increase in insulin receptor substrate (IRS)-2 protein, a key mediator of the insulin signaling cascade, whereas IRS-1 was unchanged. Conversely, overexpression of CITED2 in endothelial cells decreased IRS-2 protein by 55% without altering IRS-1, resulting in impaired insulin-stimulated Akt phosphorylation and Vegfa expression. Overexpression of HIF-2α significantly increased activity of the Irs2 promoter, and coexpression of CITED2 abolished this increase. Moreover, chromatin immunoprecipitation (ChIP) showed that loss of CITED2 increased occupancy of p300, a key component of the HIF transcriptional complex, on the Irs2 promoter. Together, these results show that CITED2 selectively inhibits endothelial insulin signaling and action through the phosphoinositide 3-kinase (PI3K)/Akt pathway via repression of HIF-dependent IRS-2 expression. CITED2 is thus a promising target to improve endothelial insulin sensitivity and prevent the vascular complications of diabetes.NEW & NOTEWORTHY Endothelial cell insulin resistance is a major contributor to the development of diabetic complications. In this study, we have shown that CITED2, a transcriptional coregulator, inhibits endothelial insulin signaling through the PI3K/Akt pathway via repression of HIF-dependent IRS-2 expression, and that deletion of CITED2 enhances insulin signaling. Thus, CITED2 represents a novel and promising target to improve insulin sensitivity in endothelial cells and prevent vascular complications in diabetes.
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Affiliation(s)
| | | | - Sam M Lockhart
- Joslin Diabetes Center and Harvard Medical School, Boston, Massachusetts
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7
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Lam B, Nwadozi E, Haas TL, Birot O, Roudier E. High Glucose Treatment Limits Drosha Protein Expression and Alters AngiomiR Maturation in Microvascular Primary Endothelial Cells via an Mdm2-dependent Mechanism. Cells 2021; 10:742. [PMID: 33801773 PMCID: PMC8065922 DOI: 10.3390/cells10040742] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 03/20/2021] [Accepted: 03/23/2021] [Indexed: 12/21/2022] Open
Abstract
Diabetes promotes an angiostatic phenotype in the microvascular endothelium of skeletal muscle and skin. Angiogenesis-related microRNAs (angiomiRs) regulate angiogenesis through the translational repression of pro- and anti-angiogenic genes. The maturation of micro-RNA (miRs), including angiomiRs, requires the action of DROSHA and DICER proteins. While hyperglycemia modifies the expression of angiomiRs, it is unknown whether high glucose conditions alter the maturation process of angiomiRs in dermal and skeletal muscle microvascular endothelial cells (MECs). Compared to 5 mM of glucose, high glucose condition (30 mM, 6-24 h) decreased DROSHA protein expression, without changing DROSHA mRNA, DICER mRNA, or DICER protein in primary dermal MECs. Despite DROSHA decreasing, high glucose enhanced the maturation and expression of one angiomiR, miR-15a, and downregulated an miR-15a target: Vascular Endothelial Growth Factor-A (VEGF-A). The high glucose condition increased Murine Double Minute-2 (MDM2) expression and MDM2-binding to DROSHA. Inhibition of MDM2 prevented the effects evoked by high glucose on DROSHA protein and miR-15a maturation in dermal MECs. In db/db mice, blood glucose was negatively correlated with the expression of skeletal muscle DROSHA protein, and high glucose decreased DROSHA protein in skeletal muscle MECs. Altogether, our results suggest that high glucose reduces DROSHA protein and enhances the maturation of the angiostatic miR-15a through a mechanism that requires MDM2 activity.
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8
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Sáez T, Toledo F, Sobrevia L. Extracellular Vesicles and Insulin Resistance: A Potential Interaction in Vascular Dysfunction. Curr Vasc Pharmacol 2020; 17:491-497. [PMID: 30277159 DOI: 10.2174/1570161116666181002095745] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 09/11/2018] [Accepted: 09/11/2018] [Indexed: 12/19/2022]
Abstract
Insulin resistance plays a key role in cardiovascular complications associated with diabetes mellitus and hypertensive disorders. In states of insulin resistance several circulating factors may contribute to a defective insulin sensitivity in different tissues, including the vasculature. One of these factors influencing the vascular insulin resistance are the extracellular vesicles. The extracellular vesicles include exosomes, microvesicles, and apoptotic bodies which are released to the circulation by different vascular cells. Since the cargo of extracellular vesicles seems to be altered in metabolic complications associated with insulin resistance, these vesicles may be candidates contributing to vascular insulin resistance. Despite the studies linking insulin resistance signalling pathways with the vascular effect of extracellular vesicles, the involvement of these structures in vascular insulin resistance is a phenomenon that remains unclear.
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Affiliation(s)
- Tamara Sáez
- Department of Obstetrics and Gynecology, University of Alberta, Edmonton T6G 2S2, AB, Canada.,Women and Children's Health Research Institute, University of Alberta, Edmonton T6G 2S2, AB, Canada
| | - Fernando Toledo
- Department of Basic Sciences, Faculty of Sciences, Bio-Bio University, Chillan 3780000, Chile.,Cellular and Molecular Physiology Laboratory (CMPL), Department of Obstetrics, Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontifical Catholic University of Chile, Santiago 8330024, Chile
| | - Luis Sobrevia
- Cellular and Molecular Physiology Laboratory (CMPL), Department of Obstetrics, Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontifical Catholic University of Chile, Santiago 8330024, Chile.,Department of Physiology, Faculty of Pharmacy, University of Sevilla, Seville E-41012, Spain.,University of Queensland Centre for Clinical Research (UQCCR), Faculty of Medicine and Biomedical Sciences, University of Queensland, Herston, QLD 4029, Queensland, Australia
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9
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Fernandes MT, Calado SM, Mendes-Silva L, Bragança J. CITED2 and the modulation of the hypoxic response in cancer. World J Clin Oncol 2020; 11:260-274. [PMID: 32728529 PMCID: PMC7360518 DOI: 10.5306/wjco.v11.i5.260] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 04/13/2020] [Accepted: 05/13/2020] [Indexed: 02/06/2023] Open
Abstract
CITED2 (CBP/p300-interacting transactivator with Glu/Asp-rich C-terminal domain, 2) is a ubiquitously expressed protein exhibiting a high affinity for the CH1 domain of the transcriptional co-activators CBP/p300, for which it competes with hypoxia-inducible factors (HIFs). CITED2 is particularly efficient in the inhibition of HIF-1α-dependent transcription in different contexts, ranging from organ development and metabolic homeostasis to tissue regeneration and immunity, being also potentially involved in various other physiological processes. In addition, CITED2 plays an important role in inhibiting HIF in some diseases, including kidney and heart diseases and type 2-diabetes. In the particular case of cancer, CITED2 either functions by promoting or suppressing cancer development depending on the context and type of tumors. For instance, CITED2 overexpression promotes breast and prostate cancers, as well as acute myeloid leukemia, while its expression is downregulated to sustain colorectal cancer and hepatocellular carcinoma. In addition, the role of CITED2 in the maintenance of cancer stem cells reveals its potential as a target in non-small cell lung carcinoma and acute myeloid leukemia, for example. But besides the wide body of evidence linking both CITED2 and HIF signaling to carcinogenesis, little data is available regarding CITED2 role as a negative regulator of HIF-1α specifically in cancer. Therefore, comprehensive studies exploring further the interactions of these two important mediators in cancer-specific models are sorely needed and this can potentially lead to the development of novel targeted therapies.
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Affiliation(s)
- Mónica T Fernandes
- School of Health, Universidade do Algarve, Campus of Gambelas, Faro 8005-139, Portugal
- Centre for Biomedical Research, Universidade do Algarve, Campus of Gambelas, Faro 8005-139, Portugal
- Algarve Biomedical Centre, Faro 8005-139, Portugal
| | - Sofia M Calado
- Centre for Biomedical Research, Universidade do Algarve, Campus of Gambelas, Faro 8005-139, Portugal
- Algarve Biomedical Centre, Faro 8005-139, Portugal
| | - Leonardo Mendes-Silva
- Centre for Biomedical Research, Universidade do Algarve, Campus of Gambelas, Faro 8005-139, Portugal
- Algarve Biomedical Centre, Faro 8005-139, Portugal
- Department of Biomedical Sciences and Medicine, Universidade do Algarve, Campus of Gambelas, Faro 8005-139, Portugal
| | - José Bragança
- Centre for Biomedical Research, Universidade do Algarve, Campus of Gambelas, Faro 8005-139, Portugal
- Algarve Biomedical Centre, Faro 8005-139, Portugal
- Department of Biomedical Sciences and Medicine, Universidade do Algarve, Campus of Gambelas, Faro 8005-139, Portugal
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10
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Xiao S, Zhang D, Liu Z, Jin W, Huang G, Wei Z, Wang D, Deng C. Diabetes-induced glucolipotoxicity impairs wound healing ability of adipose-derived stem cells-through the miR-1248/CITED2/HIF-1α pathway. Aging (Albany NY) 2020; 12:6947-6965. [PMID: 32294623 PMCID: PMC7202540 DOI: 10.18632/aging.103053] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 03/29/2020] [Indexed: 04/13/2023]
Abstract
Despite being an attractive cell type for mesenchymal stem cell (MSC) transplantation therapy for wound healing, human adipose-derived stem cells (hADSCs) from diabetes mellitus (DM) patients result in remarkable retention of stem cell activity due to diabetes-induced glucolipotoxicity. We explored the effect of diabetes and medium containing AGEs on the cell activity, phenotype, multipotency, angiogenic potential, and the therapeutic effect of hADSCs. Then, miRNA-1248 was selected by miRNA microarray analysis to further study the core molecular pathways that regulate the wound healing ability of hADSCs. hADSCs isolated from DM patients or cultured in medium containing AGEs in vitro exhibited decreased effectiveness in stem cell therapy. The expression of miRNA-1248 was decreased in the hADSCs of DM patients and hence failed to positively regulate stem cell activity, differentiation functions, and angiogenesis promotion effect. This concomitantly increased the expression of CITED2, an inhibitor of HIF-1α, thus influencing growth factors that promote angiogenesis, cellular proliferation, and wound healing. Overall, our data demonstrated that the glucolipotoxicity-impaired wound healing ability of hADSCs might occur through the miR-1248/CITED2/HIF-1α pathway. MiRNA-1248 may have potential to be used as a novel therapeutic target for wound healing in DM patients or restoring the wound healing ability of diabetic hADSCs.
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Affiliation(s)
- Shune Xiao
- Department of Plastic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Dan Zhang
- Department of Orthodontics, Stomatological Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Zhiyuan Liu
- Department of Plastic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Wenhu Jin
- Department of Plastic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Guangtao Huang
- Department of Plastic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Zairong Wei
- Department of Plastic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Dali Wang
- Department of Plastic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Chengliang Deng
- Department of Plastic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
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11
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Brakenhielm E, Richard V. Therapeutic vascular growth in the heart. VASCULAR BIOLOGY 2019; 1:H9-H15. [PMID: 32923948 PMCID: PMC7439849 DOI: 10.1530/vb-19-0006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 03/28/2019] [Indexed: 12/03/2022]
Abstract
Despite tremendous efforts in preclinical research over the last decades, the clinical translation of therapeutic angiogenesis to grow stable and functional blood vessels in patients with ischemic diseases continues to prove challenging. In this mini review, we briefly present the current main approaches applied to improve pro-angiogenic therapies. Specific examples from research on therapeutic cardiac angiogenesis and arteriogenesis will be discussed, and finally some suggestions for future therapeutic developments will be presented.
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Affiliation(s)
- Ebba Brakenhielm
- Normandy University, UniRouen, Inserm (Institut National de la Santé et de la Recherche Médicale) UMR1096 (EnVI Laboratory), FHU REMOD-VHF, Rouen, France
| | - Vincent Richard
- Normandy University, UniRouen, Inserm (Institut National de la Santé et de la Recherche Médicale) UMR1096 (EnVI Laboratory), FHU REMOD-VHF, Rouen, France
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12
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Abuzenadah A, Al-Saedi S, Karim S, Al-Qahtani M. Role of Overexpressed Transcription Factor FOXO1 in Fatal Cardiovascular Septal Defects in Patau Syndrome: Molecular and Therapeutic Strategies. Int J Mol Sci 2018; 19:ijms19113547. [PMID: 30423812 PMCID: PMC6274780 DOI: 10.3390/ijms19113547] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Revised: 11/01/2018] [Accepted: 11/05/2018] [Indexed: 12/16/2022] Open
Abstract
Patau Syndrome (PS), characterized as a lethal disease, allows less than 15% survival over the first year of life. Most deaths owe to brain and heart disorders, more so due to septal defects because of altered gene regulations. We ascertained the cytogenetic basis of PS first, followed by molecular analysis and docking studies. Thirty-seven PS cases were referred from the Department of Pediatrics, King Abdulaziz University Hospital to the Center of Excellence in Genomic Medicine Research, Jeddah during 2008 to 2018. Cytogenetic analyses were performed by standard G-band method and trisomy13 were found in all the PS cases. Studies have suggested that genes of chromosome 13 and other chromosomes are associated with PS. We, therefore, did molecular pathway analysis, gene interaction, and ontology studies to identify their associations. Genomic analysis revealed important chr13 genes such as FOXO1, Col4A1, HMGBB1, FLT1, EFNB2, EDNRB, GAS6, TNFSF1, STARD13, TRPC4, TUBA3C, and TUBA3D, and their regulatory partners on other chromosomes associated with cardiovascular disorders, atrial and ventricular septal defects. There is strong indication of involving FOXO1 (Forkhead Box O1) gene-a strong transcription factor present on chr13, interacting with many septal defects link genes. The study was extended using molecular docking to find a potential drug lead for overexpressed FOXO1 inhibition. The phenothiazine and trifluoperazine showed efficiency to inhibit overexpressed FOXO1 protein, and could be potential drugs for PS/trisomy13 after validation.
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Affiliation(s)
- Adel Abuzenadah
- Center of Excellence in Genomic Medicine Research, Faculty of Applied Medical Sciences, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia.
- King Fahd Medical Research Center, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia.
| | - Saad Al-Saedi
- Department of Pediatric, Faculty of Medicine, King Abdulaziz University Hospital, King Abdulaziz University, P.O. Box 80215, Jeddah 21589, Saudi Arabia.
| | - Sajjad Karim
- Center of Excellence in Genomic Medicine Research, Faculty of Applied Medical Sciences, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia.
| | - Mohammed Al-Qahtani
- Center of Excellence in Genomic Medicine Research, Faculty of Applied Medical Sciences, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia.
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13
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Impact of the hypoxic phenotype on the uptake and efflux of nanoparticles by human breast cancer cells. Sci Rep 2018; 8:12318. [PMID: 30120388 PMCID: PMC6098061 DOI: 10.1038/s41598-018-30517-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 07/30/2018] [Indexed: 12/30/2022] Open
Abstract
Breast cancer cells adapt to the hypoxic tumoral environment by undergoing changes in metabolism, cell signalling, endo-lysosomal receptor uptake and recycling. The resulting hypoxic cell phenotype has the potential to undermine the therapeutic efficacy of nanomedicines designed for endocytic uptake and specific intracellular trafficking. The aim of this study was to examine the impact of hypoxia and simulated reperfusion on the in vitro uptake and release of nanomedicines by human breast cancer cells. Cells were exposed to a hypoxic preconditioning treatment in 1% oxygen for 6 and 24 hours to induce temporal changes in the hypoxic circuit (e.g. HIF-1α expression). The preconditioned cells were then dosed with nanoparticles for 45 or 180 minutes emulating nanomedicine access following tumor reperfusion. Hypoxic preconditioning significantly increased nanoparticle retention by up to 10% when compared to normoxic cultures, with the greatest relative difference between normoxic and hypoxic cultures occurring with a 45 minute dosing interval. Exocytosis studies indicated that the preconditioned cells had a significantly increased nanoparticle efflux (up to 9%) when compared to normoxic cells. Overall, we were able to show that hypoxic preconditioning regulates both the endocytosis and exocytosis of nanomedicines in human breast cancer cells.
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14
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Das A, Huang GX, Bonkowski MS, Longchamp A, Li C, Schultz MB, Kim LJ, Osborne B, Joshi S, Lu Y, Treviño-Villarreal JH, Kang MJ, Hung TT, Lee B, Williams EO, Igarashi M, Mitchell JR, Wu LE, Turner N, Arany Z, Guarente L, Sinclair DA. Impairment of an Endothelial NAD +-H 2S Signaling Network Is a Reversible Cause of Vascular Aging. Cell 2018; 173:74-89.e20. [PMID: 29570999 PMCID: PMC5884172 DOI: 10.1016/j.cell.2018.02.008] [Citation(s) in RCA: 284] [Impact Index Per Article: 47.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 12/25/2017] [Accepted: 01/31/2018] [Indexed: 11/26/2022]
Abstract
A decline in capillary density and blood flow with age is a major cause of mortality and morbidity. Understanding why this occurs is key to future gains in human health. NAD precursors reverse aspects of aging, in part, by activating sirtuin deacylases (SIRT1-SIRT7) that mediate the benefits of exercise and dietary restriction (DR). We show that SIRT1 in endothelial cells is a key mediator of pro-angiogenic signals secreted from myocytes. Treatment of mice with the NAD+ booster nicotinamide mononucleotide (NMN) improves blood flow and increases endurance in elderly mice by promoting SIRT1-dependent increases in capillary density, an effect augmented by exercise or increasing the levels of hydrogen sulfide (H2S), a DR mimetic and regulator of endothelial NAD+ levels. These findings have implications for improving blood flow to organs and tissues, increasing human performance, and reestablishing a virtuous cycle of mobility in the elderly.
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Affiliation(s)
- Abhirup Das
- Paul F. Glenn Center for the Biological Mechanisms of Aging, Department of Genetics, Harvard Medical School, Boston, MA 02115, USA; Laboratory for Ageing Research, Department of Pharmacology, School of Medical Sciences, The University of New South Wales, Sydney, NSW 2052, Australia; Paul F. Glenn Center for Science of Aging Research, Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - George X Huang
- Paul F. Glenn Center for the Biological Mechanisms of Aging, Department of Genetics, Harvard Medical School, Boston, MA 02115, USA; Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, 3400 Civic Center Boulevard, Bldg. 421, Philadelphia, PA 19104, USA
| | - Michael S Bonkowski
- Paul F. Glenn Center for the Biological Mechanisms of Aging, Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
| | - Alban Longchamp
- Department of Genetics and Complex Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Catherine Li
- Laboratory for Ageing Research, Department of Pharmacology, School of Medical Sciences, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Michael B Schultz
- Paul F. Glenn Center for the Biological Mechanisms of Aging, Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
| | - Lynn-Jee Kim
- Laboratory for Ageing Research, Department of Pharmacology, School of Medical Sciences, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Brenna Osborne
- Mitochondrial Bioenergetics Laboratory, Department of Pharmacology, School of Medical Sciences, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Sanket Joshi
- Mitochondrial Bioenergetics Laboratory, Department of Pharmacology, School of Medical Sciences, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Yuancheng Lu
- Paul F. Glenn Center for the Biological Mechanisms of Aging, Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
| | | | - Myung-Jin Kang
- Laboratory for Ageing Research, Department of Pharmacology, School of Medical Sciences, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Tzong-Tyng Hung
- Biological Resources Imaging Laboratory, Mark Wainwright Analytical Centre, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Brendan Lee
- Biological Resources Imaging Laboratory, Mark Wainwright Analytical Centre, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Eric O Williams
- Paul F. Glenn Center for Science of Aging Research, Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Masaki Igarashi
- Paul F. Glenn Center for Science of Aging Research, Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - James R Mitchell
- Department of Genetics and Complex Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Lindsay E Wu
- Laboratory for Ageing Research, Department of Pharmacology, School of Medical Sciences, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Nigel Turner
- Mitochondrial Bioenergetics Laboratory, Department of Pharmacology, School of Medical Sciences, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Zolt Arany
- Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, 3400 Civic Center Boulevard, Bldg. 421, Philadelphia, PA 19104, USA.
| | - Leonard Guarente
- Paul F. Glenn Center for Science of Aging Research, Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
| | - David A Sinclair
- Paul F. Glenn Center for the Biological Mechanisms of Aging, Department of Genetics, Harvard Medical School, Boston, MA 02115, USA; Laboratory for Ageing Research, Department of Pharmacology, School of Medical Sciences, The University of New South Wales, Sydney, NSW 2052, Australia.
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15
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Functional blocking of Ninjurin1 as a strategy for protecting endothelial cells in diabetes mellitus. Clin Sci (Lond) 2018; 132:213-229. [PMID: 29263137 DOI: 10.1042/cs20171273] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 12/10/2017] [Accepted: 12/16/2017] [Indexed: 02/06/2023]
Abstract
Ongoing efforts to remove pathological inflammatory stimuli are crucial for the protection of endothelial cells in diabetes. Nerve injury-induced protein 1 (Ninj1) is an adhesion molecule that not only contributes to inflammation but also regulates the apoptosis of endothelial cells. In the present study, Ninj1 was found highly expressed in endothelial cells in Type 2 diabetic mice and increased in high-glucose (HG) cultured HUVECs. Furthermore, we found that Ninj1 levels are up-regulated in endothelial cells in clinical specimens of diabetic patients when compared with nondiabetic tissues, indicating a biological correlation between Ninj1 and endothelial pathophysiology in diabetic condition. Functional blocking of Ninj1 promoted endothelial tube formation and eNOS phosphorylation in the HG condition. Additionally, blocking Ninj1 inhibited the activation of caspase-3 and increased the Bcl-2/Bax ratio, thus inhibiting HUVECs apoptosis induced by HG. HG-induced ROS overproduction, p38 MAPK and NF-κB activation, and the overexpression of VCAM-1, ICAM-1, MCP-1, and IL-6 genes were ameliorated after Ninj1 was blocked. Using the signaling pathway inhibitor LY294002, we found that Bcl-2 expression and eNOS phosphorylation after Ninj1 blockade were regulated via PI3K/Akt signaling pathway. The in vivo endothelial contents, α-SMA+PECAM-1+ vascular numbers, and blood perfusion in the hindlimb were markedly up-regulated after Ninj1 was blocked. According to our findings, functional blocking of Ninj1 shows protective effects on diabetic endothelial cells both in vitro and in vivo Thus, we consider Ninj1 to be a potential therapeutic target for preventing endothelial dysfunction in diabetes mellitus.
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Affiliation(s)
- Guanghong Jia
- Diabetes and Cardiovascular Research Center, University of Missouri, Columbia, MO
- Harry S. Truman Memorial Veterans Hospital, Columbia, MO
| | - James R Sowers
- Diabetes and Cardiovascular Research Center, University of Missouri, Columbia, MO
- Harry S. Truman Memorial Veterans Hospital, Columbia, MO
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO
- Dalton Cardiovascular Center, University of Missouri, Columbia, MO
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17
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Xin Z, Ma Z, Jiang S, Wang D, Fan C, Di S, Hu W, Li T, She J, Yang Y. FOXOs in the impaired heart: New therapeutic targets for cardiac diseases. Biochim Biophys Acta Mol Basis Dis 2016; 1863:486-498. [PMID: 27890702 DOI: 10.1016/j.bbadis.2016.11.023] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 10/24/2016] [Accepted: 11/23/2016] [Indexed: 01/17/2023]
Abstract
Cardiac diseases have a high morbidity and mortality and affect the global population. Based on recent accumulating evidence, Forkhead box O (FOXOs) play important roles in cardiac diseases. Therefore, a summary of the current literature on the molecular mechanisms and roles of FOXOs in the heart will provide valuable information. In this review, we first briefly introduce the molecular features of FOXOs. Then, we discuss the regulation and cardiac actions of the FOXO pathways. Based on this background, we expand our discussion to the roles of FOXOs in several major cardiac diseases, such as ischemic cardiac diseases, diabetic cardiomyopathy and myocardial hypertrophy. Then, we describe some methodological problems associated with the FOXO gene-modified animal models. Finally, we discuss potential future directions. The information reviewed here may be significant for the design of future studies and may increase the potential of FOXOs as therapeutic targets.
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Affiliation(s)
- Zhenlong Xin
- Department of Thoracic and Cardiovascular Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing 210008, Jiangsu, China; Department of Biomedical Engineering, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China
| | - Zhiqiang Ma
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, 1 Xinsi Road, Xi'an 710038, China
| | - Shuai Jiang
- Department of Aerospace Medicine, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China
| | - Dongjin Wang
- Department of Thoracic and Cardiovascular Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing 210008, Jiangsu, China
| | - Chongxi Fan
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, 1 Xinsi Road, Xi'an 710038, China
| | - Shouyin Di
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, 1 Xinsi Road, Xi'an 710038, China
| | - Wei Hu
- Department of Biomedical Engineering, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China
| | - Tian Li
- Department of Biomedical Engineering, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China
| | - Junjun She
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an 710061, China.
| | - Yang Yang
- Department of Thoracic and Cardiovascular Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing 210008, Jiangsu, China; Department of Biomedical Engineering, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China.
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