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Mao A, Sun C, Katsube T, Wang B. A Minireview on Gastrointestinal Microbiota and Radiosusceptibility. Dose Response 2020; 18:1559325820963859. [PMID: 33239996 PMCID: PMC7672743 DOI: 10.1177/1559325820963859] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 08/20/2020] [Accepted: 09/09/2020] [Indexed: 12/13/2022] Open
Abstract
Gastrointestinal (GI) microbiota maintains a symbiotic relationship with the host and plays a key role in modulating many important biological processes and functions of the host, such as metabolism, inflammation, immune and stress response. It is becoming increasingly apparent that GI microbiota is susceptible to a wide range of environmental factors and insults, for examples, geographic location of birth, diet, use of antibiotics, and exposure to radiation. Alterations in GI microbiota link to various diseases, including radiation-induced disorders. In addition, GI microbiota composition could be used as a biomarker to estimate radiosusceptibility and radiation health risk in the host. In this minireview, we summarized the documented studies on radiation-induced alterations in GI microbiota and the relationship between GI microbiota and radiosusceptibility of the host, and mainly discussed the possible mechanisms underlying GI microbiota influencing the outcome of radiation response in humans and animal models. Furthermore, we proposed that GI microbiota manipulation may be used to reduce radiation injury and improve the health of the host.
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Affiliation(s)
- Aihong Mao
- Gansu Provincial Academic Institute for Medical Research, Lanzhou, People's Republic of China
| | - Chao Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, People's Republic of China
| | - Takanori Katsube
- National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - Bing Wang
- National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
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102
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Hostettler IC, O'Callaghan B, Bugiardini E, O'Connor E, Vandrovcova J, Davagnanam I, Alg V, Bonner S, Walsh D, Bulters D, Kitchen N, Brown MM, Grieve J, Werring DJ, Houlden H. ANGPTL6 Genetic Variants Are an Underlying Cause of Familial Intracranial Aneurysms. Neurology 2020; 96:e947-e955. [PMID: 33106390 PMCID: PMC8105901 DOI: 10.1212/wnl.0000000000011125] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Accepted: 10/08/2020] [Indexed: 01/16/2023] Open
Abstract
Purpose To understand the role of the angiopoietin-like 6 gene (ANGPTL6) in intracranial aneurysms (IAs), we investigated its role in a large cohort of familial IAs. Methods Individuals with family history of IA were recruited to the Genetic and Observational Subarachnoid Haemorrhage (GOSH) study. The ANGPTL6 gene was sequenced using Sanger sequencing. Identified genetic variants were compared to a control population. Results We found 6 rare ANGPTL6 genetic variants in 9/275 individuals with a family history of IA (3.3%) (5 missense mutations and 1 nonsense mutation leading to a premature stop codon), none present in controls. One of these had been previously reported: c.392A>T (p.Glu131Val) on exon 2; another was very close: c.332G>A (p.Arg111His). Two further genetic variants lie within the fibrinogen-like domain of the ANGPTL6 gene, which may influence function or level of the ANGPTL6 protein. The last 2 missense mutations lie within the coiled-coil domain of the ANGPTL6 protein. All genetic variants were well conserved across species. Conclusion ANGPTL6 genetic variants are an important cause of IA. Defective or lack of ANGPTL6 protein is therefore an important factor in blood vessel proliferation leading to IA; dysfunction of this protein is likely to cause abnormal proliferation or weakness of vessel walls. With these data, not only do we emphasize the importance of screening familial IA cases for ANGPTL6 and other genes involved in IA, but also highlight the ANGPTL6 pathway as a potential therapeutic target. Classification of Evidence This is a Class III study showing some specificity of presence of the ANGPTL6 gene variant as a marker of familial intracranial aneurysms in a small subset of individuals with familial aneurysms.
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Affiliation(s)
- Isabel C Hostettler
- From the Stroke Research Centre (I.C.H., V.A., M.M.B., D.J.W.), MRC Centre for Neuromuscular Diseases (B.O., E.B.), and Department of Neuromuscular Disorders (E.B., J.V.), UCL Queen Square Institute of Neurology; Neurogenetics Laboratory (I.C.H., B.O., E.O., H.H.) and Departments of Neuroradiology (I.D.) and Neurosurgery (N.K., J.G.), the National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, Queen Square, London; Department of Anaesthesia (S.B.), the James Cook University Hospital, Middlesbrough; Department of Neurosurgery (D.W.), King's College Hospital NHS Foundation Trust, London; and Department of Neurosurgery (D.B.), University Hospital Southampton NHS Foundation Trust
| | - Benjamin O'Callaghan
- From the Stroke Research Centre (I.C.H., V.A., M.M.B., D.J.W.), MRC Centre for Neuromuscular Diseases (B.O., E.B.), and Department of Neuromuscular Disorders (E.B., J.V.), UCL Queen Square Institute of Neurology; Neurogenetics Laboratory (I.C.H., B.O., E.O., H.H.) and Departments of Neuroradiology (I.D.) and Neurosurgery (N.K., J.G.), the National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, Queen Square, London; Department of Anaesthesia (S.B.), the James Cook University Hospital, Middlesbrough; Department of Neurosurgery (D.W.), King's College Hospital NHS Foundation Trust, London; and Department of Neurosurgery (D.B.), University Hospital Southampton NHS Foundation Trust
| | - Enrico Bugiardini
- From the Stroke Research Centre (I.C.H., V.A., M.M.B., D.J.W.), MRC Centre for Neuromuscular Diseases (B.O., E.B.), and Department of Neuromuscular Disorders (E.B., J.V.), UCL Queen Square Institute of Neurology; Neurogenetics Laboratory (I.C.H., B.O., E.O., H.H.) and Departments of Neuroradiology (I.D.) and Neurosurgery (N.K., J.G.), the National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, Queen Square, London; Department of Anaesthesia (S.B.), the James Cook University Hospital, Middlesbrough; Department of Neurosurgery (D.W.), King's College Hospital NHS Foundation Trust, London; and Department of Neurosurgery (D.B.), University Hospital Southampton NHS Foundation Trust
| | - Emer O'Connor
- From the Stroke Research Centre (I.C.H., V.A., M.M.B., D.J.W.), MRC Centre for Neuromuscular Diseases (B.O., E.B.), and Department of Neuromuscular Disorders (E.B., J.V.), UCL Queen Square Institute of Neurology; Neurogenetics Laboratory (I.C.H., B.O., E.O., H.H.) and Departments of Neuroradiology (I.D.) and Neurosurgery (N.K., J.G.), the National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, Queen Square, London; Department of Anaesthesia (S.B.), the James Cook University Hospital, Middlesbrough; Department of Neurosurgery (D.W.), King's College Hospital NHS Foundation Trust, London; and Department of Neurosurgery (D.B.), University Hospital Southampton NHS Foundation Trust
| | - Jana Vandrovcova
- From the Stroke Research Centre (I.C.H., V.A., M.M.B., D.J.W.), MRC Centre for Neuromuscular Diseases (B.O., E.B.), and Department of Neuromuscular Disorders (E.B., J.V.), UCL Queen Square Institute of Neurology; Neurogenetics Laboratory (I.C.H., B.O., E.O., H.H.) and Departments of Neuroradiology (I.D.) and Neurosurgery (N.K., J.G.), the National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, Queen Square, London; Department of Anaesthesia (S.B.), the James Cook University Hospital, Middlesbrough; Department of Neurosurgery (D.W.), King's College Hospital NHS Foundation Trust, London; and Department of Neurosurgery (D.B.), University Hospital Southampton NHS Foundation Trust
| | - Indran Davagnanam
- From the Stroke Research Centre (I.C.H., V.A., M.M.B., D.J.W.), MRC Centre for Neuromuscular Diseases (B.O., E.B.), and Department of Neuromuscular Disorders (E.B., J.V.), UCL Queen Square Institute of Neurology; Neurogenetics Laboratory (I.C.H., B.O., E.O., H.H.) and Departments of Neuroradiology (I.D.) and Neurosurgery (N.K., J.G.), the National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, Queen Square, London; Department of Anaesthesia (S.B.), the James Cook University Hospital, Middlesbrough; Department of Neurosurgery (D.W.), King's College Hospital NHS Foundation Trust, London; and Department of Neurosurgery (D.B.), University Hospital Southampton NHS Foundation Trust
| | - Varinder Alg
- From the Stroke Research Centre (I.C.H., V.A., M.M.B., D.J.W.), MRC Centre for Neuromuscular Diseases (B.O., E.B.), and Department of Neuromuscular Disorders (E.B., J.V.), UCL Queen Square Institute of Neurology; Neurogenetics Laboratory (I.C.H., B.O., E.O., H.H.) and Departments of Neuroradiology (I.D.) and Neurosurgery (N.K., J.G.), the National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, Queen Square, London; Department of Anaesthesia (S.B.), the James Cook University Hospital, Middlesbrough; Department of Neurosurgery (D.W.), King's College Hospital NHS Foundation Trust, London; and Department of Neurosurgery (D.B.), University Hospital Southampton NHS Foundation Trust
| | - Stephen Bonner
- From the Stroke Research Centre (I.C.H., V.A., M.M.B., D.J.W.), MRC Centre for Neuromuscular Diseases (B.O., E.B.), and Department of Neuromuscular Disorders (E.B., J.V.), UCL Queen Square Institute of Neurology; Neurogenetics Laboratory (I.C.H., B.O., E.O., H.H.) and Departments of Neuroradiology (I.D.) and Neurosurgery (N.K., J.G.), the National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, Queen Square, London; Department of Anaesthesia (S.B.), the James Cook University Hospital, Middlesbrough; Department of Neurosurgery (D.W.), King's College Hospital NHS Foundation Trust, London; and Department of Neurosurgery (D.B.), University Hospital Southampton NHS Foundation Trust
| | - Daniel Walsh
- From the Stroke Research Centre (I.C.H., V.A., M.M.B., D.J.W.), MRC Centre for Neuromuscular Diseases (B.O., E.B.), and Department of Neuromuscular Disorders (E.B., J.V.), UCL Queen Square Institute of Neurology; Neurogenetics Laboratory (I.C.H., B.O., E.O., H.H.) and Departments of Neuroradiology (I.D.) and Neurosurgery (N.K., J.G.), the National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, Queen Square, London; Department of Anaesthesia (S.B.), the James Cook University Hospital, Middlesbrough; Department of Neurosurgery (D.W.), King's College Hospital NHS Foundation Trust, London; and Department of Neurosurgery (D.B.), University Hospital Southampton NHS Foundation Trust
| | - Diederik Bulters
- From the Stroke Research Centre (I.C.H., V.A., M.M.B., D.J.W.), MRC Centre for Neuromuscular Diseases (B.O., E.B.), and Department of Neuromuscular Disorders (E.B., J.V.), UCL Queen Square Institute of Neurology; Neurogenetics Laboratory (I.C.H., B.O., E.O., H.H.) and Departments of Neuroradiology (I.D.) and Neurosurgery (N.K., J.G.), the National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, Queen Square, London; Department of Anaesthesia (S.B.), the James Cook University Hospital, Middlesbrough; Department of Neurosurgery (D.W.), King's College Hospital NHS Foundation Trust, London; and Department of Neurosurgery (D.B.), University Hospital Southampton NHS Foundation Trust
| | - Neil Kitchen
- From the Stroke Research Centre (I.C.H., V.A., M.M.B., D.J.W.), MRC Centre for Neuromuscular Diseases (B.O., E.B.), and Department of Neuromuscular Disorders (E.B., J.V.), UCL Queen Square Institute of Neurology; Neurogenetics Laboratory (I.C.H., B.O., E.O., H.H.) and Departments of Neuroradiology (I.D.) and Neurosurgery (N.K., J.G.), the National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, Queen Square, London; Department of Anaesthesia (S.B.), the James Cook University Hospital, Middlesbrough; Department of Neurosurgery (D.W.), King's College Hospital NHS Foundation Trust, London; and Department of Neurosurgery (D.B.), University Hospital Southampton NHS Foundation Trust
| | - Martin M Brown
- From the Stroke Research Centre (I.C.H., V.A., M.M.B., D.J.W.), MRC Centre for Neuromuscular Diseases (B.O., E.B.), and Department of Neuromuscular Disorders (E.B., J.V.), UCL Queen Square Institute of Neurology; Neurogenetics Laboratory (I.C.H., B.O., E.O., H.H.) and Departments of Neuroradiology (I.D.) and Neurosurgery (N.K., J.G.), the National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, Queen Square, London; Department of Anaesthesia (S.B.), the James Cook University Hospital, Middlesbrough; Department of Neurosurgery (D.W.), King's College Hospital NHS Foundation Trust, London; and Department of Neurosurgery (D.B.), University Hospital Southampton NHS Foundation Trust
| | - Joan Grieve
- From the Stroke Research Centre (I.C.H., V.A., M.M.B., D.J.W.), MRC Centre for Neuromuscular Diseases (B.O., E.B.), and Department of Neuromuscular Disorders (E.B., J.V.), UCL Queen Square Institute of Neurology; Neurogenetics Laboratory (I.C.H., B.O., E.O., H.H.) and Departments of Neuroradiology (I.D.) and Neurosurgery (N.K., J.G.), the National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, Queen Square, London; Department of Anaesthesia (S.B.), the James Cook University Hospital, Middlesbrough; Department of Neurosurgery (D.W.), King's College Hospital NHS Foundation Trust, London; and Department of Neurosurgery (D.B.), University Hospital Southampton NHS Foundation Trust
| | - David J Werring
- From the Stroke Research Centre (I.C.H., V.A., M.M.B., D.J.W.), MRC Centre for Neuromuscular Diseases (B.O., E.B.), and Department of Neuromuscular Disorders (E.B., J.V.), UCL Queen Square Institute of Neurology; Neurogenetics Laboratory (I.C.H., B.O., E.O., H.H.) and Departments of Neuroradiology (I.D.) and Neurosurgery (N.K., J.G.), the National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, Queen Square, London; Department of Anaesthesia (S.B.), the James Cook University Hospital, Middlesbrough; Department of Neurosurgery (D.W.), King's College Hospital NHS Foundation Trust, London; and Department of Neurosurgery (D.B.), University Hospital Southampton NHS Foundation Trust
| | - Henry Houlden
- From the Stroke Research Centre (I.C.H., V.A., M.M.B., D.J.W.), MRC Centre for Neuromuscular Diseases (B.O., E.B.), and Department of Neuromuscular Disorders (E.B., J.V.), UCL Queen Square Institute of Neurology; Neurogenetics Laboratory (I.C.H., B.O., E.O., H.H.) and Departments of Neuroradiology (I.D.) and Neurosurgery (N.K., J.G.), the National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, Queen Square, London; Department of Anaesthesia (S.B.), the James Cook University Hospital, Middlesbrough; Department of Neurosurgery (D.W.), King's College Hospital NHS Foundation Trust, London; and Department of Neurosurgery (D.B.), University Hospital Southampton NHS Foundation Trust.
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103
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Vatannejad A, Salimi F, Moradi N, Fouani FZ, Zandieh Z, Ansaripour S, Sadeghi A, Fadaei R. Evaluation of angiopoietin-like protein 3 (ANGPTL3) levels in polycystic ovary syndrome. Life Sci 2020; 263:118595. [PMID: 33075372 DOI: 10.1016/j.lfs.2020.118595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/21/2020] [Accepted: 10/08/2020] [Indexed: 02/07/2023]
Abstract
AIM Angiopoietin-like protein 3 (ANGPTL3) is recognized as a regulator of lipid metabolism. However, little is known about its association with insulin resistance in polycystic ovary syndrome (PCOS) setting. The present study aimed to investigate the serum levels of ANGPTL3 and adiponectin in PCOS women compared to healthy controls. MAIN METHOD In this study, a total of 175 premenopausal women (117 PCOS and 58 non-PCOS) were enrolled. Serum concentrations of ANGPTL3, adiponectin, fasting insulin, and other hormonal variables were measured using ELISA technique. KEY FINDINGS Results showed that adiponectin levels were significantly lower in PCOS group than those of non-PCOS group. However, serum levels of ANGPTL3, high-sensitivity C-reactive protein (hs-CRP), and homocysteine (Hcy) were found to be higher in PCOS patients, when compared to non-PCOS ones. Moreover, serum ANGPTL3 positively correlated with BMI and serum triglyceride, while it inversely correlated with serum HDL-C in PCOS patients. SIGNIFICANCE Our results demonstrated that increased levels of ANGPTL3 correlated with insulin resistance and dyslipidemia in PCOS patients, highlighting the need for future studies targeting its role in the pathogenesis of this disease.
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Affiliation(s)
- Akram Vatannejad
- Department of Comparative Biosciences, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Fouzieh Salimi
- Department of Clinical Biochemistry, Faculty of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Nariman Moradi
- Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Fatima Zahraa Fouani
- Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, University of Medical Sciences, Tehran, Iran
| | - Zahra Zandieh
- Shahid Akbar Abadi Clinical Research Development Unit (ShACRDU), Iran University of Medical Sciences, Tehran, Iran
| | - Soheila Ansaripour
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Asie Sadeghi
- Department of Clinical Biochemistry, Faculty of Medicine, Kerman University of Medical Sciences, Kerman, Iran; Physiology Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran.
| | - Reza Fadaei
- Sleep Disorders Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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104
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Yang Y, Jiao X, Li L, Hu C, Zhang X, Pan L, Yu H, Li J, Chen D, Du J, Qin Y. Increased Circulating Angiopoietin-Like Protein 8 Levels Are Associated with Thoracic Aortic Dissection and Higher Inflammatory Conditions. Cardiovasc Drugs Ther 2020; 34:65-77. [PMID: 32034642 PMCID: PMC7093348 DOI: 10.1007/s10557-019-06924-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Purpose Thoracic aortic dissection (TAD) is characterized by an inflammatory response. Angiopoietin-like protein 8 (ANGPTL8) is a hormone involved in the regulation of lipid metabolism and inflammation. However, the relationship between ANGPTL8 and TAD remains unknown. Methods This case-control study included 78 TAD patients and 72 controls. The aortic diameter was evaluated by computed tomography and used to assess TAD severity. Circulating ANGPTL8 levels were measured by enzyme-linked immunosorbent assay. Associations of ANGPTL8 with TAD were determined by multivariate logistic regression. Results Serum ANGPTL8 levels were significantly higher in TAD patients compared with controls (562.50 ± 20.84 vs. 419.70 ± 22.65 pg/mL, respectively; P < 0.001). After adjusting for confounding factors, circulating ANGPTL8 levels were an independent risk factor for TAD (odds ratio = 1.587/100 pg ANGPTL8, 95% confidence interval [CI] = 1.121–2.247, P < 0.001) and positively associated with diameter (β = 1.081/100 pg ANGPTL8, 95% CI = 0.075–2.086, P = 0.035) and high-sensitivity C-reactive protein (hs-CRP) (β = 0.845/100 pg ANGPTL8, 95% CI = 0.020–1.480, P = 0.009). The area under the curve (AUC) on receiver operating characteristic (ROC) analysis of the combination of ANGPTL8, hs-CRP, and D-dimer was 0.927, and the specificity and sensitivity were 98.46% and 79.49%, respectively. ANGPTL8 was significantly increased in TAD tissue compared with controls. In vitro, ANGPTL8 was increased in angiotensin II (AngII)-treated macrophages and vascular smooth muscle cells (VSMCs), while ANGPTL8 siRNA-mediated knockdown decreased inflammatory factors in AngII-treated macrophages and decreased apoptosis in AngII-treated VSMCs. Conclusion ANGPTL8 is associated with TAD occurrence and development, which may involve pro-inflammatory effects on macrophages. ANGPTL8 combined with D-dimer and hs-CRP might be a useful clinical predictor of TAD. Trial Registration ChiCTR-COC-17010792 http://www.chictr.org.cn/showproj.aspx?proj=18288 Electronic supplementary material The online version of this article (10.1007/s10557-019-06924-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yunyun Yang
- Key Laboratory of Remodeling-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, 2 Anzhen Road, Chaoyang District, Beijing, 100029, China.,Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, 100029, China
| | - Xiaolu Jiao
- Key Laboratory of Remodeling-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, 2 Anzhen Road, Chaoyang District, Beijing, 100029, China.,Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, 100029, China
| | - Linyi Li
- Key Laboratory of Remodeling-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, 2 Anzhen Road, Chaoyang District, Beijing, 100029, China.,Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, 100029, China
| | - Chaowei Hu
- Key Laboratory of Remodeling-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, 2 Anzhen Road, Chaoyang District, Beijing, 100029, China.,Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, 100029, China
| | - Xiaoping Zhang
- Key Laboratory of Remodeling-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, 2 Anzhen Road, Chaoyang District, Beijing, 100029, China.,Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, 100029, China
| | - Lili Pan
- Key Laboratory of Remodeling-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, 2 Anzhen Road, Chaoyang District, Beijing, 100029, China
| | - Huahui Yu
- Key Laboratory of Remodeling-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, 2 Anzhen Road, Chaoyang District, Beijing, 100029, China.,Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, 100029, China
| | - Juan Li
- Key Laboratory of Remodeling-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, 2 Anzhen Road, Chaoyang District, Beijing, 100029, China.,Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, 100029, China
| | - Dong Chen
- Department of Pathology, Beijing An Zhen Hospital, Capital Medical University, Beijing, 100029, China
| | - Jie Du
- Key Laboratory of Remodeling-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, 2 Anzhen Road, Chaoyang District, Beijing, 100029, China
| | - Yanwen Qin
- Key Laboratory of Remodeling-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, 2 Anzhen Road, Chaoyang District, Beijing, 100029, China. .,Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, 100029, China.
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105
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Ruiz-Vega R, Chen CF, Razzak E, Vasudeva P, Krasieva TB, Shiu J, Caldwell MG, Yan H, Lowengrub J, Ganesan AK, Lander AD. Dynamics of nevus development implicate cell cooperation in the growth arrest of transformed melanocytes. eLife 2020; 9:e61026. [PMID: 33047672 PMCID: PMC7553774 DOI: 10.7554/elife.61026] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 09/11/2020] [Indexed: 12/13/2022] Open
Abstract
Mutational activation of the BRAF proto-oncogene in melanocytes reliably produces benign nevi (pigmented 'moles'), yet the same change is the most common driver mutation in melanoma. The reason nevi stop growing, and do not progress to melanoma, is widely attributed to a cell-autonomous process of 'oncogene-induced senescence'. Using a mouse model of Braf-driven nevus formation, analyzing both proliferative dynamics and single-cell gene expression, we found no evidence that nevus cells are senescent, either compared with other skin cells, or other melanocytes. We also found that nevus size distributions could not be fit by any simple cell-autonomous model of growth arrest, yet were easily fit by models based on collective cell behavior, for example in which arresting cells release an arrest-promoting factor. We suggest that nevus growth arrest is more likely related to the cell interactions that mediate size control in normal tissues, than to any cell-autonomous, 'oncogene-induced' program of senescence.
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Affiliation(s)
- Rolando Ruiz-Vega
- Center for Complex Biological Systems, University of California, IrvineIrvineUnited States
- Department of Developmental and Cell Biology, University of California, IrvineIrvineUnited States
| | - Chi-Fen Chen
- Department of Dermatology, University of California, IrvineIrvineUnited States
| | - Emaad Razzak
- Center for Complex Biological Systems, University of California, IrvineIrvineUnited States
| | - Priya Vasudeva
- Department of Dermatology, University of California, IrvineIrvineUnited States
| | - Tatiana B Krasieva
- Beckman Laser Institute, University of California, IrvineIrvineUnited States
| | - Jessica Shiu
- Department of Dermatology, University of California, IrvineIrvineUnited States
| | - Michael G Caldwell
- Center for Complex Biological Systems, University of California, IrvineIrvineUnited States
| | - Huaming Yan
- Department of Mathematics, University of California, IrvineIrvineUnited States
| | - John Lowengrub
- Center for Complex Biological Systems, University of California, IrvineIrvineUnited States
- Department of Mathematics, University of California, IrvineIrvineUnited States
| | - Anand K Ganesan
- Center for Complex Biological Systems, University of California, IrvineIrvineUnited States
- Department of Dermatology, University of California, IrvineIrvineUnited States
| | - Arthur D Lander
- Center for Complex Biological Systems, University of California, IrvineIrvineUnited States
- Department of Developmental and Cell Biology, University of California, IrvineIrvineUnited States
- Department of Biological Chemistry, University of California, IrvineIrvineUnited States
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106
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Chia PY, Teo A, Yeo TW. Overview of the Assessment of Endothelial Function in Humans. Front Med (Lausanne) 2020; 7:542567. [PMID: 33117828 PMCID: PMC7575777 DOI: 10.3389/fmed.2020.542567] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 08/27/2020] [Indexed: 12/26/2022] Open
Abstract
The endothelium is recognized to play an important role in various physiological functions including vascular tone, permeability, anticoagulation, and angiogenesis. Endothelial dysfunction is increasingly recognized to contribute to pathophysiology of many disease states, and depending on the disease stimuli, mechanisms underlying the endothelial dysfunction may be markedly different. As such, numerous techniques to measure different aspects of endothelial dysfunction have been developed and refined as available technology improves. Current available reviews on quantifying endothelial dysfunction generally concentrate on a single aspect of endothelial function, although diseases may affect more than one aspect of endothelial function. Here, we aim to provide an overview on the techniques available for the assessment of the different aspects of endothelial function in humans, human tissues or cells, namely vascular tone modulation, permeability, anticoagulation and fibrinolysis, and the use of endothelial biomarkers as predictors of outcomes.
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Affiliation(s)
- Po Ying Chia
- National Centre for Infectious Diseases, Singapore, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
- Department of Infectious Diseases, Tan Tock Seng Hospital, Singapore, Singapore
| | - Andrew Teo
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
- Department of Medicine and Radiology and Doherty Institute, University of Melbourne, Victoria, VIC, Australia
| | - Tsin Wen Yeo
- National Centre for Infectious Diseases, Singapore, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
- Department of Infectious Diseases, Tan Tock Seng Hospital, Singapore, Singapore
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107
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Lu X. Structure and Function of Angiopoietin-like Protein 3 (ANGPTL3) in Atherosclerosis. Curr Med Chem 2020; 27:5159-5174. [PMID: 31223079 DOI: 10.2174/0929867326666190621120523] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 04/24/2019] [Accepted: 04/30/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND Angiopoietin-Like Proteins (ANGPTLs) are structurally related to the angiopoietins. A total of eight ANGPTLs (from ANGPTL1 to ANGPTL8) have been identified so far. Most ANGPTLs possess multibiological functions on lipid metabolism, atherosclerosis, and cancer. Among them, ANGPTL3 has been shown to regulate the levels of Very Low-Density Lipoprotein (VLDL) made by the liver and play a crucial role in human lipoprotein metabolism. METHOD A systematic appraisal of ANGPTLs was conducted, focusing on the main features of ANGPTL3 that has a significant role in atherosclerosis. RESULTS Angiopoietins including ANGPTL3 are vascular growth factors that are highly specific for endothelial cells, perform a variety of other regulatory activities to influence inflammation, and have been shown to possess both pro-atherosclerotic and atheroprotective effects. CONCLUSION ANGPTL3 has been demonstrated as a promising target in the pharmacological management of atherosclerosis. However, many questions remain about its biological functions.
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Affiliation(s)
- Xinjie Lu
- The Mary and Garry Weston Molecular Immunology Laboratory, Thrombosis Research Institute, London SW3 6LR, England, United Kingdom
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108
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Targeting Angiopoietin in Retinal Vascular Diseases: A Literature Review and Summary of Clinical Trials Involving Faricimab. Cells 2020; 9:cells9081869. [PMID: 32785136 PMCID: PMC7464130 DOI: 10.3390/cells9081869] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 08/05/2020] [Accepted: 08/05/2020] [Indexed: 12/13/2022] Open
Abstract
This review summarizes the latest findings in the literature of Angiopoietin-2 (Ang-2), Tyrosine-protein kinase receptor (Tie-2) complex, and faricimab along with their involvement for the treatment of retinal vascular diseases in various clinical trials. In ischemic diseases, such as diabetic retinopathy, Ang-2 is upregulated, deactivating Tie-2, resulting in vascular leakage, pericyte loss, and inflammation. Recombinant Angiopeotin-1 (Ang-1), Ang-2-blocking molecules, and inhibitors of vascular endothelial protein tyrosine phosphatase (VE-PTP) decrease inflammation-associated vascular leakage, showing therapeutic effects in diabetes, atherosclerosis, and ocular neovascular diseases. In addition, novel studies show that angiopoietin-like proteins may play an important role in cellular metabolism leading to retinal vascular diseases. Current therapeutic focus combines Ang-Tie targeted drugs with other anti-angiogenic or immune therapies. Clinical studies have identified faricimab, a novel bispecific antibody designed for intravitreal use, to simultaneously bind and neutralize Ang-2 and VEGF-A for treatment of diabetic eye disease. By targeting both Ang-2 and vascular endothelial growth factor-A (VEGF-A), faricimab displays an improved and sustained efficacy over longer treatment intervals, delivering superior vision outcomes for patients with diabetic macular edema and reducing the treatment burden for patients with neovascular age-related macular degeneration and diabetic macular edema. Phase 2 results have produced promising outcomes with regard to efficacy and durability. Faricimab is currently being evaluated in global Phase 3 studies.
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109
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Genome-Wide Association Study of Weaning Traits in Lori-Bakhtiari Sheep. ANNALS OF ANIMAL SCIENCE 2020. [DOI: 10.2478/aoas-2020-0014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Abstract
Weaning traits, including preweaning daily gain (PWDG) and weaning weight (WW) are important economic traits, especially for meat type mammals, with high impacts on growth performance and survival rate in higher ages. This study was conducted to perform a genome-wide association study (GWAS) on weaning traits in a meat type breed of sheep. Body weight records of 7557 Lori-Bakhtiari sheep with PWDG and WW records were used to estimate breeding values (EBVs) using an animal mixed model. A total of 132 animals were selected by two-tailed selection strategy, based on EBVs for body weight and then were genotyped using Illumina 50k Ovine SNP chip. After quality control, a total of 130 animals and 41323 SNPs were remained for further analyses. De-regressed estimates of breeding values were used as a pseudo-phenotype in GWAS analysis. Based on Bonferroni-adjusted p-values, five SNPs, located on chromosomes 2, 3, 4, 12 and 22 were significantly (p < 0.05) associated with weaning traits and accounted for 5.06% and 0.37% of total genetic variations of PWDG and WW, respectively. Two SNPs on chromosomes 2 and 3 were located near to previously reported QTLs for weaning traits. Three genes, including ANGPTL7, mTOR and WDR11, were found within 50 kbp distances from the significant SNPs and thus could be considered as candidate genes for weaning traits. The detected QTLs and candidate genes could be studied for construction of breeding programs for genetic improvement of growth performance in meat type sheep.
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110
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Lucena S, Coelho AV, Muñoz-Prieto A, Anjo SI, Manadas B, Capela E Silva F, Lamy E, Tvarijonaviciute A. Changes in the salivary proteome of beagle dogs after weight loss. Domest Anim Endocrinol 2020; 72:106474. [PMID: 32361424 DOI: 10.1016/j.domaniend.2020.106474] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 02/07/2020] [Accepted: 03/01/2020] [Indexed: 10/24/2022]
Abstract
Being overweight or obese represents an important health issue in humans and pets. The aim of this study was to investigate changes in the salivary proteome of overweight beagles after induced weight loss to better understand the physiological changes involved in this process. Five overweight/obese neutered males of pure breed beagles were evaluated. During the 3-mo period of weight loss, each animal received a strictly controlled amount of a low fat commercial diet per day. Body condition scores (BCS), body weight (BW), and serum biochemical parameters (total cholesterol, triglycerides, and C-reactive protein) were assessed weekly. Quantitative proteomics analysis by SWATH was used to evaluate the salivary proteome changes induced by weight loss treatment. BCS, BW, serum total cholesterol concentration, and abundances of 23 salivary proteins differed significantly between before and after treatment. Some of the altered protein amounts, namely of peptidyl-prolyl cis-trans isomerase, fructose-bisphosphate aldolase C, and 78-kDa glucose-regulated protein, increased after weight loss. These proteins are related with the immune system, inflammatory status, oxidative stress, and glucose metabolism. The results obtained suggest a potential use of salivary proteins in monitoring physiological changes in dogs subjected to weight loss. Moreover, the type of changes identified reinforces the postulated physiological improvements, which weight loss induces. Further research is needed to determine whether the changes observed in this study are due to weight loss, dietary changes, or a combination of both.
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Affiliation(s)
- S Lucena
- Mediterranean Institute for Agriculture, Environment and Development (MED), Universidade de Évora, Évora, Portugal; Departamento de Medicina Veterinária, Escola de Ciências e Tecnologia, Universidade de Évora, Evora, Portugal
| | - A V Coelho
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Lisbon, Portugal
| | - A Muñoz-Prieto
- Interlab-UMU, Regional Campus of International Excellence "Mare Nostrum", University of Murcia, Espinardo, 30100 Murcia, Spain
| | - S I Anjo
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - B Manadas
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - F Capela E Silva
- Mediterranean Institute for Agriculture, Environment and Development (MED), Universidade de Évora, Évora, Portugal; Departamento de Biologia, Escola de Ciências e Tecnologia, Universidade de Évora, Evora, Portugal
| | - E Lamy
- Mediterranean Institute for Agriculture, Environment and Development (MED), Universidade de Évora, Évora, Portugal.
| | - A Tvarijonaviciute
- Interlab-UMU, Regional Campus of International Excellence "Mare Nostrum", University of Murcia, Espinardo, 30100 Murcia, Spain.
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111
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Hannon BA, Edwards CG, Thompson SV, Reeser GE, Burd NA, Holscher HD, Teran-Garcia M, Khan NA. Single Nucleotide Polymorphisms Related to Lipoprotein Metabolism Are Associated with Blood Lipid Changes following Regular Avocado Intake in a Randomized Control Trial among Adults with Overweight and Obesity. J Nutr 2020; 150:1379-1387. [PMID: 32195538 DOI: 10.1093/jn/nxaa054] [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: 06/17/2019] [Revised: 11/05/2019] [Accepted: 02/17/2020] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Avocados are rich in unsaturated fat and fiber; clinical trials have investigated their effects on metabolic disease. There is high variability in individual changes following avocado consumption, which may be in part due to individual genetic differences. OBJECTIVE Secondary analyses of the Persea americana for Total Health (PATH) Study were used to examine how single nucleotide polymorphisms (SNPs) impact blood lipid changes following a daily meal containing avocado compared with control. METHODS Adults (n = 115, 37% male) aged 25-45 y with overweight and obesity were randomly assigned to receive a daily isocaloric meal with (intervention) or without (control) a standardized amount (males: 175 g; females: 140 g) of avocado for 12 wk. Control meals were higher in saturated fat (17% of energy compared with 7%) and lower in fiber (4 g compared with 16 g) than intervention meals. Whole venous blood was taken at baseline and 12 wk to determine total cholesterol (TC), high-density lipoprotein (HDL) cholesterol, and triglyceride (TG) concentrations. Seventeen SNPs in 10 genes related to lipoprotein metabolism were genotyped. Effects of SNP, diet, and SNP-diet interactions were determined using general linear models. RESULTS No group-by-time effects were detected for changes in TC (P = 0.96), HDL cholesterol (P = 0.28), or TG (P = 0.06) over 12 wk. Three SNP-diet interactions were associated with final TC concentrations: ANGPTL3-rs10889337 (P = 0.01), ANGPTL4-rs2278236 (P = 0.02), and CD36-rs10499859 (P = 0.01). SNPs in GCKR and LPL were associated with TC changes (P = 0.01). The interaction between GCKR-rs1260326 and diet was such that C-homozygotes receiving avocado (n = 23) had final TC concentrations that were significantly lower than the C-homozygotes in the control group (n = 20) (P = 0.02). CONCLUSIONS Results from these exploratory analyses indicate that avocado consumption may help manage dyslipidemia in adults with overweight and obesity; however, effectiveness may differ by genetic profile. Understanding the role of genetic variation in variability following dietary intervention can potentially inform personalized nutrition recommendations.
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Affiliation(s)
- Bridget A Hannon
- Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Caitlyn G Edwards
- Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Sharon V Thompson
- Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Ginger E Reeser
- Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Nicholas A Burd
- Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA.,Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Hannah D Holscher
- Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA.,Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, IL, USA.,Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Margarita Teran-Garcia
- Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA.,Department of Human Development and Family Studies, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Naiman A Khan
- Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA.,Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL, USA
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112
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Tang C, Chen E, Peng K, Wang H, Cheng X, Wang Y, Yu S, Yu Y, Cui Y, Liu T. Mining the role of angiopoietin-like protein family in gastric cancer and seeking potential therapeutic targets by integrative bioinformatics analysis. Cancer Med 2020; 9:4850-4863. [PMID: 32410376 PMCID: PMC7333835 DOI: 10.1002/cam4.3100] [Citation(s) in RCA: 5] [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: 04/23/2019] [Revised: 11/24/2019] [Accepted: 04/16/2020] [Indexed: 12/22/2022] Open
Abstract
Background The indistinctive effects of antiangiogenesis agents in gastric cancer (GC) can be attributed to multifaceted gene dysregulation associated with angiogenesis. Angiopoietin‐like (ANGPTL) proteins are secreted proteins regulating angiogenesis. They are also involved in inflammation and metabolism. Emerging evidences have revealed their various roles in carcinogenesis and metastasis development. However, the mRNA expression profiles, prognostic values, and biological functions of ANGPTL proteins in GC are still elucidated. Methods We compared the transcriptional expression levels of ANGPTL proteins between GC and normal gastric tissues using ONCOMINE and TCGA‐STAD. The prognostic values were evaluated by LinkedOmics and Kaplan–Meier Plotter, while the association of expression levels with clinicopathological features was generated through cBioPortal. We conducted the functional enrichment analysis with Metascape. Results The expression of ANGPTL1/3/6 was lower in GC tissues than in normal gastric tissues. High expression of ANGPTL1/2/4 was correlated with short overall survival and post‐progression survival in GC patients. Upregulated ANGPTL1/2 was correlated with higher histological grade, non‐intestinal Lauren classification, and advanced T stage, while ANGPTL4 exhibited high expression in early T stage, M1 stage, and non‐intestinal Lauren classification. Conclusions Integrative bioinformatics analysis suggests that ANGPTL1/2/4 may be potential therapeutic targets in GC patients. Among them, ANGPTL2 acts as a GC promoter, while ANGPTL1/4’s role in GC is still uncertain.
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Affiliation(s)
- Cheng Tang
- Department of Medical OncologyZhongshan Hospital Affiliated to Fudan UniversityShanghaiPR China
| | - Erbao Chen
- Department of Medical OncologyZhongshan Hospital Affiliated to Fudan UniversityShanghaiPR China
| | - Ke Peng
- Department of Medical OncologyZhongshan Hospital Affiliated to Fudan UniversityShanghaiPR China
| | - Haiwei Wang
- Department of Medical OncologyZhongshan Hospital Affiliated to Fudan UniversityShanghaiPR China
| | - Xi Cheng
- Department of Medical OncologyZhongshan Hospital Affiliated to Fudan UniversityShanghaiPR China
| | - Yan Wang
- Department of Medical OncologyZhongshan Hospital Affiliated to Fudan UniversityShanghaiPR China
| | - Shan Yu
- Department of Medical OncologyZhongshan Hospital Affiliated to Fudan UniversityShanghaiPR China
| | - Yiyi Yu
- Department of Medical OncologyZhongshan Hospital Affiliated to Fudan UniversityShanghaiPR China
| | - Yuehong Cui
- Department of Medical OncologyZhongshan Hospital Affiliated to Fudan UniversityShanghaiPR China
| | - Tianshu Liu
- Department of Medical OncologyZhongshan Hospital Affiliated to Fudan UniversityShanghaiPR China
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113
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Tanigawa Y, Wainberg M, Karjalainen J, Kiiskinen T, Venkataraman G, Lemmelä S, Turunen JA, Graham RR, Havulinna AS, Perola M, Palotie A, Daly MJ, Rivas MA. Rare protein-altering variants in ANGPTL7 lower intraocular pressure and protect against glaucoma. PLoS Genet 2020; 16:e1008682. [PMID: 32369491 PMCID: PMC7199928 DOI: 10.1371/journal.pgen.1008682] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 02/18/2020] [Indexed: 12/17/2022] Open
Abstract
Protein-altering variants that are protective against human disease provide in vivo validation of therapeutic targets. Here we use genotyping data from UK Biobank (n = 337,151 unrelated White British individuals) and FinnGen (n = 176,899) to conduct a search for protein-altering variants conferring lower intraocular pressure (IOP) and protection against glaucoma. Through rare protein-altering variant association analysis, we find a missense variant in ANGPTL7 in UK Biobank (rs28991009, p.Gln175His, MAF = 0.8%, genotyped in 82,253 individuals with measured IOP and an independent set of 4,238 glaucoma patients and 250,660 controls) that significantly lowers IOP (β = -0.53 and -0.67 mmHg for heterozygotes, -3.40 and -2.37 mmHg for homozygotes, P = 5.96 x 10-9 and 1.07 x 10-13 for corneal compensated and Goldman-correlated IOP, respectively) and is associated with 34% reduced risk of glaucoma (P = 0.0062). In FinnGen, we identify an ANGPTL7 missense variant at a greater than 50-fold increased frequency in Finland compared with other populations (rs147660927, p.Arg220Cys, MAF Finland = 4.3%), which was genotyped in 6,537 glaucoma patients and 170,362 controls and is associated with a 29% lower glaucoma risk (P = 1.9 x 10-12 for all glaucoma types and also protection against its subtypes including exfoliation, primary open-angle, and primary angle-closure). We further find three rarer variants in UK Biobank, including a protein-truncating variant, which confer a strong composite lowering of IOP (P = 0.0012 and 0.24 for Goldman-correlated and corneal compensated IOP, respectively), suggesting the protective mechanism likely resides in the loss of interaction or function. Our results support inhibition or down-regulation of ANGPTL7 as a therapeutic strategy for glaucoma.
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Affiliation(s)
- Yosuke Tanigawa
- Department of Biomedical Data Science, School of Medicine, Stanford University, Stanford, California, United States of America
| | - Michael Wainberg
- Department of Biomedical Data Science, School of Medicine, Stanford University, Stanford, California, United States of America
| | - Juha Karjalainen
- Program in Medical and Population Genetics and Stanley Center for Psychiatric Research, Broad Institute of Harvard and MIT, Cambridge, Massachusetts, United States of America
- Analytic and Translational Genetics Unit, Massachusetts General Hospital, Boston, Massachusetts, United States of America
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland
| | - Tuomo Kiiskinen
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland
- Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Guhan Venkataraman
- Department of Biomedical Data Science, School of Medicine, Stanford University, Stanford, California, United States of America
| | - Susanna Lemmelä
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland
- Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Joni A. Turunen
- Department of Ophthalmology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Folkhälsan Research Center, Biomedicum Helsinki, Helsinki, Finland
| | - Robert R. Graham
- Maze Therapeutics, South San Francisco, California, United States of America
| | - Aki S. Havulinna
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland
- Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Markus Perola
- Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Aarno Palotie
- Program in Medical and Population Genetics and Stanley Center for Psychiatric Research, Broad Institute of Harvard and MIT, Cambridge, Massachusetts, United States of America
- Analytic and Translational Genetics Unit, Massachusetts General Hospital, Boston, Massachusetts, United States of America
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland
| | | | - Mark J. Daly
- Program in Medical and Population Genetics and Stanley Center for Psychiatric Research, Broad Institute of Harvard and MIT, Cambridge, Massachusetts, United States of America
- Analytic and Translational Genetics Unit, Massachusetts General Hospital, Boston, Massachusetts, United States of America
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland
| | - Manuel A. Rivas
- Department of Biomedical Data Science, School of Medicine, Stanford University, Stanford, California, United States of America
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Fan KC, Wu HT, Wei JN, Chuang LM, Hsu CY, Yen IW, Lin CH, Lin MS, Shih SR, Wang SH, Chang TJ, Li HY. Serum Angiopoietin-like Protein 6, Risk of Type 2 Diabetes, and Response to Hyperglycemia: A Prospective Cohort Study. J Clin Endocrinol Metab 2020; 105:5775438. [PMID: 32123920 DOI: 10.1210/clinem/dgaa103] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 02/27/2020] [Indexed: 02/06/2023]
Abstract
CONTEXT Angiopoietin-like protein 6 (ANGPTL6) is a hepatokine that improves insulin sensitivity in animals. However, serum ANGPTL6 concentration was found to be higher in human participants with diabetes or metabolic syndrome in cross-sectional studies, implying that ANGPTL6 may be induced to counteract hyperglycemia. OBJECTIVE To investigate whether serum ANGPTL6 can predict incident diabetes and explore whether glucose or insulin can regulate ANGPTL6 expression and secretion. DESIGN This cohort study included adults without diabetes at baseline who were followed every 2 years for incident diabetes. Serum ANGPTL6 concentrations were measured at baseline and during oral glucose tolerance tests (OGTTs). A hepatic cell line, HepG2, and diet-induced obesity mouse model were used to evaluate the response of ANGPTL6 expression and secretion to hyperglycemia and the metabolic syndrome. RESULTS We recruited 1103 participants without diabetes at baseline. During the 4.22-year follow-up, 113 (10.2%) participants developed incident diabetes. Serum ANGPTL6 was negatively associated with the incidence of diabetes (adjusted hazard ratio, 0.77; P = 0.042). However, serum ANGPTL6 level was higher in participants with prediabetes (P = 0.018) and was elevated during OGTT. In HepG2 cells, treatment with glucose, but not insulin, induced ANGPTL6 expression. Hepatic ANGPTL6 expression and serum ANGPTL6 concentrations were significantly higher in mice fed with a high-fat diet than in those fed with a standard chow (both P < 0.05). CONCLUSION A high serum ANGPTL6 level is associated with a low incidence of diabetes in humans. ANGPTL6 is expressed and secreted in response to hyperglycemia to maintain glucose homeostasis.
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Affiliation(s)
- Kang-Chih Fan
- Division of Endocrinology and Metabolism, Department of Internal Medicine, National Taiwan University Hospital Hsinchu Branch, Hsinchu, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Hung-Tsung Wu
- Graduate Institute of Metabolism and Obesity Sciences, College of Nutrition, Taipei Medical University, Taipei, Taiwan
| | - Jung-Nan Wei
- Chia Nan University of Pharmacy and Science, Tainan, Taiwan
| | - Lee-Ming Chuang
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Chih-Yao Hsu
- Division of Endocrinology and Metabolism, Department of Internal Medicine, National Taiwan University Hospital Hsinchu Branch, Hsinchu, Taiwan
| | - I-Weng Yen
- Division of Endocrinology and Metabolism, Department of Internal Medicine, National Taiwan University Hospital Hsinchu Branch, Hsinchu, Taiwan
| | - Chia-Hung Lin
- Division of Endocrinology and Metabolism, Department of Internal Medicine, National Taiwan University Hospital Hsinchu Branch, Hsinchu, Taiwan
| | - Mao-Shin Lin
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Shyang-Rong Shih
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Shu-Huei Wang
- Graduate Institute of Anatomy and Cell Biology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Tien-Jyun Chang
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Hung-Yuan Li
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
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115
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Hammad MM, Abu-Farha M, Al-Taiar A, Alam-Eldin N, Al-Sabah R, Shaban L, Al-Mulla F, Abubaker J, Rahman A. Correlation of circulating ANGPTL5 levels with obesity, high sensitivity C-reactive protein and oxidized low-density lipoprotein in adolescents. Sci Rep 2020; 10:6330. [PMID: 32286392 PMCID: PMC7156513 DOI: 10.1038/s41598-020-63076-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Accepted: 03/24/2020] [Indexed: 12/12/2022] Open
Abstract
Angiopoietin-like proteins (ANGPTL) is a family of eight members known to play an important role in metabolic diseases. Of these, ANGPTL5 is suggested to regulate triglyceride metabolism and is increased in obesity and diabetes. However, its role in metabolic diseases in adolescents is not well-studied. In this study, we tested the hypothesis of a positive association between plasma ANGPTL5, and obesity, high sensitivity C-reactive protein (HsCRP) and oxidized low-density lipoprotein (Ox-LDL) in adolescents. Adolescents (N = 431; age 11–14 years) were randomly selected from middle schools in Kuwait. Obesity was classified by the BMI-for-age based on the WHO growth charts. Plasma ANGPTL5, HsCRP, and Ox-LDL were measured using ELISA. The prevalence of overweight and obesity was 20.65% and 33.18%, respectively. Mean (SD) plasma ANGPTL5 levels were significantly higher in obese, compared with overweight and normal-weight adolescents (23.05 (8.79) vs 18.39 (7.08) ng/mL, and 18.26 (6.95) ng/ml, respectively). ANGPTL5 was positively associated with both HsCRP (ρ=0.27, p < 0.001) and Ox-LDL (ρ = 0.24, p < 0.001). In Conclusion, ANGPTL5 levels are elevated in obese adolescents and are associated with cardiovascular disease risk factors, HsCRP and Ox-LDL. The use of ANGPTL5 as a powerful diagnostic and prognostic tool in obesity and metabolic diseases needs to be further evaluated.
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Affiliation(s)
- Maha M Hammad
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Mohamed Abu-Farha
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Abdullah Al-Taiar
- School of Community & Environmental Health, College of Health Sciences, Old Dominion University, Norfolk, VA, USA
| | - Nada Alam-Eldin
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Reem Al-Sabah
- Department of Community Medicine and Behavioural Sciences, Faculty of Medicine, Kuwait University, Kuwait City, Kuwait
| | - Lemia Shaban
- Department of Food Science and Nutrition, College of Life Sciences, Kuwait University, Kuwait City, Kuwait
| | - Fahd Al-Mulla
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Jehad Abubaker
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, Kuwait.
| | - Abdur Rahman
- Department of Food Science and Nutrition, College of Life Sciences, Kuwait University, Kuwait City, Kuwait.
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Qaddoumi MG, Alanbaei M, Hammad MM, Al Khairi I, Cherian P, Channanath A, Thanaraj TA, Al-Mulla F, Abu-Farha M, Abubaker J. Investigating the Role of Myeloperoxidase and Angiopoietin-like Protein 6 in Obesity and Diabetes. Sci Rep 2020; 10:6170. [PMID: 32277104 PMCID: PMC7148302 DOI: 10.1038/s41598-020-63149-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 03/02/2020] [Indexed: 02/07/2023] Open
Abstract
Myeloperoxidase (MPO) is positively associated with obesity and diet-induced insulin resistance. Angiopoietin-like protein 6 (ANGPTL6) regulates metabolic processes and counteract obesity through increased energy expenditure. This study aims to evaluate the plasma MPO and ANGPTL6 levels in obese and diabetic individuals as well as MPO association with biochemical markers of obesity. A total of 238 participants were enrolled, including 137 control and 101 type 2 diabetes (T2D) patients. ANGPTL6 and MPO levels and other biomarkers were measured via ELISA. ANGPTL6 levels were significantly higher in the diabetic population and obese individuals. When the group was stratified based on T2D, ANGPTL6 levels were significantly higher in obese-diabetic participants compared with non-obese-diabetics, but obese-non-diabetic individuals had similar ANGPTL6 levels to their controls. MPO levels were higher in obese compared with non-obese participants but did not differ between T2D and control participants. MPO levels were upregulated in obese compared with non-obese in both diabetics and non-diabetics. MPO was positively associated with ANGPTL6, triglyceride, BMI, TNF-alpha, high-sensitivity C-reactive protein, interleukin-6, and plasminogen activator inhibitor-1. Taken together, our findings suggest that both MPO and ANGPTL6 may regulate obesity, although MPO exerts this effect independent of diabetes while ANGPTL6 may have a modulatory role in diabetes.
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Affiliation(s)
- Mohammad G Qaddoumi
- Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
- Pharmacology and Therapeutics Department, Faculty of Pharmacy, Kuwait University, Kuwait City, Kuwait
| | - Muath Alanbaei
- Department of Medicine, Faculty of Medicine, Kuwait University, Kuwait City, Kuwait
| | - Maha M Hammad
- Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Irina Al Khairi
- Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Preethi Cherian
- Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Arshad Channanath
- Functional Genomic Unit, Dasman Diabetes Institute, 15462, Kuwait City, Kuwait
| | | | - Fahd Al-Mulla
- Functional Genomic Unit, Dasman Diabetes Institute, 15462, Kuwait City, Kuwait
| | - Mohamed Abu-Farha
- Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait.
| | - Jehad Abubaker
- Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait.
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Alvarez-Rodriguez M, Martinez C, Wright D, Barranco I, Roca J, Rodriguez-Martinez H. The Transcriptome of Pig Spermatozoa, and Its Role in Fertility. Int J Mol Sci 2020; 21:ijms21051572. [PMID: 32106598 PMCID: PMC7084236 DOI: 10.3390/ijms21051572] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 02/19/2020] [Accepted: 02/24/2020] [Indexed: 12/20/2022] Open
Abstract
In the study presented here we identified transcriptomic markers for fertility in the cargo of pig ejaculated spermatozoa using porcine-specific micro-arrays (GeneChip® miRNA 4.0 and GeneChip® Porcine Gene 1.0 ST). We report (i) the relative abundance of the ssc-miR-1285, miR-16, miR-4332, miR-92a, miR-671-5p, miR-4334-5p, miR-425-5p, miR-191, miR-92b-5p and miR-15b miRNAs, and (ii) the presence of 347 up-regulated and 174 down-regulated RNA transcripts in high-fertility breeding boars, based on differences of farrowing rate (FS) and litter size (LS), relative to low-fertility boars in the (Artificial Insemination) AI program. An overrepresentation analysis of the protein class (PANTHER) identified significant fold-increases for C-C chemokine binding (GO:0019957): CCR7, which activates B- and T-lymphocytes, 8-fold increase), XCR1 and CXCR4 (with ubiquitin as a natural ligand, 1.24-fold increase), cytokine receptor activity (GO:0005126): IL23R receptor of the IL23 protein, associated to JAK2 and STAT3, 3.4-fold increase), the TGF-receptor (PC00035) genes ACVR1C and ACVR2B (12-fold increase). Moreover, two micro-RNAs (miR-221 and mir-621) were down- and up-regulated, respectively, in high-fertility males. In conclusion, boars with different fertility performance possess a wide variety of differentially expressed RNA present in spermatozoa that would be attractive targets as non-invasive molecular markers for predicting fertility.
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Affiliation(s)
- Manuel Alvarez-Rodriguez
- Department of Biomedical & Clinical Sciences (BKV), BKH/Obstetrics & Gynaecology, Faculty of Medicine and Health Sciences, Linköping University, SE-58185 Linköping, Sweden; (C.M.); (H.R.-M.)
- Correspondence: e-mail: ; Phone: +46-(0)729427883
| | - Cristina Martinez
- Department of Biomedical & Clinical Sciences (BKV), BKH/Obstetrics & Gynaecology, Faculty of Medicine and Health Sciences, Linköping University, SE-58185 Linköping, Sweden; (C.M.); (H.R.-M.)
| | - Dominic Wright
- Department of Physics, Chemistry and Biology, Faculty of Science and Engineering, Linköping University, SE-58183 Linköping, Sweden
| | - Isabel Barranco
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Department of Biology, Institute of Food and Agricultural Technology, University of Girona, 17003 Girona, Spain;
| | - Jordi Roca
- Department of Medicine and Animal Surgery, Faculty of Veterinary Medicine, International Campus for Higher Education and Research “Campus Mare Nostrum”, University of Murcia, 30100 Murcia, Spain;
| | - Heriberto Rodriguez-Martinez
- Department of Biomedical & Clinical Sciences (BKV), BKH/Obstetrics & Gynaecology, Faculty of Medicine and Health Sciences, Linköping University, SE-58185 Linköping, Sweden; (C.M.); (H.R.-M.)
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Morelli MB, Chavez C, Santulli G. Angiopoietin-like proteins as therapeutic targets for cardiovascular disease: focus on lipid disorders. Expert Opin Ther Targets 2020; 24:79-88. [PMID: 31856617 DOI: 10.1080/14728222.2020.1707806] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Introduction: Angiopoietin-like (ANGPTL) proteins belong to a family of eight secreted factors that are structurally related to proteins that modulate angiogenesi, commonly known as angiopoietins. Specifically, ANGPTL3, ANGPTL4, and ANGPTL8 (the 'ANGPT L3-4-8 triad'), have surfaced as principal regulators of plasma lipid metabolism by functioning as potent inhibitors of lipoprotein lipase. The targeting of these proteins may open up future therapeutic avenues for metabolic and cardiovascular disease.Areas covered: This article systematically summarizes the compelling literature describing the mechanistic roles of ANGPTL3, 4, and 8 in lipid metabolism, emphasizing their importance in determining the risk of cardiovascular disease. We shed light on population-based studies linking loss-of-function variations in ANGPTL3, 4, and 8 with decreased risk of metabolic conditions and cardiovascular disorders. We also discuss how the strategies aiming at targeting the ANGPT L3-4-8 triad could offer therapeutic benefit in the clinical scenario.Expert opinion: Monoclonal antibodies and antisense oligonucleotides that target ANGPTL3, 4, and 8 are potentially an efficient therapeutic strategy for hypertriglyceridemia and cardiovascular risk reduction, especially in patients with limited treatment options. These innovative therapeutical approaches are at an embryonic stage in development and hence further investigations are necessary for eventual use in humans.
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Affiliation(s)
- Marco Bruno Morelli
- Department of Medicine; Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, New York, NY, USA.,Department of Molecular Pharmacology, Einstein-Mount Sinai Diabetes Research Center (ES-DRC), The "Norman Fleischer" Institute for Diabetes and Metabolism (FIDAM), Albert Einstein College of Medicine, NY, New York, USA
| | - Christopher Chavez
- Department of Medicine; Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, New York, NY, USA
| | - Gaetano Santulli
- Department of Medicine; Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, New York, NY, USA.,Department of Molecular Pharmacology, Einstein-Mount Sinai Diabetes Research Center (ES-DRC), The "Norman Fleischer" Institute for Diabetes and Metabolism (FIDAM), Albert Einstein College of Medicine, NY, New York, USA.,Department of Advanced Biomedical Sciences and International Translational Research and Medical Education Consortium (ITME), "Federico II" University, Naples, Italy
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Yang WH, Huang Z, Wu J, Ding CKC, Murphy SK, Chi JT. A TAZ-ANGPTL4-NOX2 Axis Regulates Ferroptotic Cell Death and Chemoresistance in Epithelial Ovarian Cancer. Mol Cancer Res 2020; 18:79-90. [PMID: 31641008 PMCID: PMC6942206 DOI: 10.1158/1541-7786.mcr-19-0691] [Citation(s) in RCA: 188] [Impact Index Per Article: 47.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 09/17/2019] [Accepted: 10/17/2019] [Indexed: 01/10/2023]
Abstract
Ovarian cancer is the deadliest gynecologic cancer. Despite recent advances, clinical outcomes remain poor, necessitating novel therapeutic approaches. To investigate metabolic susceptibility, we performed nutrigenetic screens on a panel of clear cell and serous ovarian cancer cells and identified cystine addiction and vulnerability to ferroptosis, a novel form of regulated cell death. Our results may have therapeutic potential, but little is known about the determinants of ferroptosis susceptibility in ovarian cancer. We found that vulnerability to ferroptosis in ovarian cancer cells is enhanced by lower cell confluency. Because the Hippo pathway effectors Yes-associated protein (YAP)/transcriptional coactivator with PDZ-binding motif (TAZ) are recognized as sensors of cell density, and TAZ is the predominant effector in the tested ovarian cancer cell lines, we investigated the role of TAZ in ferroptosis of ovarian cancer. TAZ removal confers ferroptosis resistance, while TAZS89A overexpression sensitizes cells to ferroptosis. In addition, we found that lower TAZ level in chemo-resistant recurrent ovarian cancer is responsible for reduced ferroptosis susceptibility. The integrative genomic analysis identified ANGPTL4 as a direct TAZ-regulated target gene that sensitizes ferroptosis by activating NOX2. Collectively, cell density-regulated ferroptosis in ovarian cancer is mediated by TAZ through the regulation of the ANGPTL4-NOX2 axis, suggesting therapeutic potentials for ovarian cancers and other TAZ-activated tumors. IMPLICATIONS: This study reveals that TAZ promotes ferroptosis in ovarian cancers by regulating ANGPTL4 and NOX, offering a novel therapeutic potential for ovarian tumors with TAZ activation.
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Affiliation(s)
- Wen-Hsuan Yang
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, North Carolina
- Center for Genomic and Computational Biology, Duke University School of Medicine, Durham, North Carolina
- Department of Biochemistry, Duke University School of Medicine, Durham, North Carolina
| | - Zhiqing Huang
- Department of Obstetrics and Gynecology, Division of Reproductive Sciences, Duke University School of Medicine, Durham, North Carolina
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Duke University School of Medicine, Durham, North Carolina
| | - Jianli Wu
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, North Carolina
- Center for Genomic and Computational Biology, Duke University School of Medicine, Durham, North Carolina
| | - Chien-Kuang C Ding
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, North Carolina
- Center for Genomic and Computational Biology, Duke University School of Medicine, Durham, North Carolina
| | - Susan K Murphy
- Department of Obstetrics and Gynecology, Division of Reproductive Sciences, Duke University School of Medicine, Durham, North Carolina
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Duke University School of Medicine, Durham, North Carolina
| | - Jen-Tsan Chi
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, North Carolina.
- Center for Genomic and Computational Biology, Duke University School of Medicine, Durham, North Carolina
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Santos-Baez LS, Ginsberg HN. Hypertriglyceridemia-Causes, Significance, and Approaches to Therapy. Front Endocrinol (Lausanne) 2020; 11:616. [PMID: 32982991 PMCID: PMC7492386 DOI: 10.3389/fendo.2020.00616] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Accepted: 07/28/2020] [Indexed: 01/06/2023] Open
Abstract
Hypertriglyceridemia (HTG) is a common metabolic disorder with both genetic and lifestyle factors playing significant roles in its pathophysiology. HTG poses a risk for the development of cardiovascular disease (CVD) in the population at large and for pancreatitis in about two percent of individuals with extremely high levels of triglycerides (TG). This manuscript summarizes the mechanisms underlying the development of HTG as well as its management, including emerging therapies targeted at specific molecular pathways.
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de Oliveira Peixoto J, Savoldi IR, Ibelli AMG, Cantão ME, Jaenisch FRF, Giachetto PF, Settles ML, Zanella R, Marchesi JAP, Pandolfi JR, Coutinho LL, Ledur MC. Proximal femoral head transcriptome reveals novel candidate genes related to epiphysiolysis in broiler chickens. BMC Genomics 2019; 20:1031. [PMID: 31888477 PMCID: PMC6937697 DOI: 10.1186/s12864-019-6411-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 12/18/2019] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND The proximal femoral head separation (FHS) or epiphysiolysis is a prevalent disorder affecting the chicken femur epiphysis, being considered a risk factor to infection which can cause bacterial chondronecrosis with osteomyelitis in broilers. To identify the genetic mechanisms involved in epiphysiolysis, differentially expressed (DE) genes in the femur of normal and FHS-affected broilers were identified using RNA-Seq technology. Femoral growth plate (GP) samples from 35-day-old commercial male broilers were collected from 4 healthy and 4 FHS-affected broilers. Sequencing was performed using an Illumina paired-end protocol. Differentially expressed genes were obtained using the edgeR package based on the False Discovery Rate (FDR < 0.05). RESULTS Approximately 16 million reads/sample were generated with 2 × 100 bp paired-end reads. After data quality control, approximately 12 million reads/sample were mapped to the reference chicken genome (Galgal5). A total of 12,645 genes were expressed in the femur GP. Out of those, 314 were DE between groups, being 154 upregulated and 160 downregulated in FHS-affected broilers. In the functional analyses, several biological processes (BP) were overrepresented. Among them, those related to cell adhesion, extracellular matrix (ECM), bone development, blood circulation and lipid metabolism, which are more related to chicken growth, are possibly involved with the onset of FHS. On the other hand, BP associated to apoptosis or cell death and immune response, which were also found in our study, could be related to the consequence of the FHS. CONCLUSIONS Genes with potential role in the epiphysiolysis were identified through the femur head transcriptome analysis, providing a better understanding of the mechanisms that regulate bone development in fast-growing chickens. In this study, we highlighted the importance of cell adhesion and extracellular matrix related genes in triggering FHS. Furthermore, we have shown new insights on the involvement of lipidemia and immune response/inflammation with FHS in broilers. Understanding the changes in the GP transcriptome might support breeding strategies to address poultry robustness and to obtain more resilient broilers.
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Affiliation(s)
- Jane de Oliveira Peixoto
- Embrapa Suínos e Aves, Rodovia BR-153, Km 110, Distrito de Tamanduá, Caixa Postal: 321, Concórdia, Santa Catarina 89715-899 Brazil
- Programa de Pós-Graduação em Ciências Veterinárias, Universidade Estadual do Centro-Oeste, Guarapuava, Paraná, Brazil
| | - Igor Ricardo Savoldi
- Embrapa Suínos e Aves, Rodovia BR-153, Km 110, Distrito de Tamanduá, Caixa Postal: 321, Concórdia, Santa Catarina 89715-899 Brazil
- Universidade do Contestado, Concórdia, Santa Catarina Brazil
- Programa de Pós-Graduação em Zootecnia, UDESC-Oeste, Chapecó, SC Brazil
| | - Adriana Mércia Guaratini Ibelli
- Embrapa Suínos e Aves, Rodovia BR-153, Km 110, Distrito de Tamanduá, Caixa Postal: 321, Concórdia, Santa Catarina 89715-899 Brazil
- Programa de Pós-Graduação em Ciências Veterinárias, Universidade Estadual do Centro-Oeste, Guarapuava, Paraná, Brazil
- Universidade do Contestado, Concórdia, Santa Catarina Brazil
| | - Maurício Egídio Cantão
- Embrapa Suínos e Aves, Rodovia BR-153, Km 110, Distrito de Tamanduá, Caixa Postal: 321, Concórdia, Santa Catarina 89715-899 Brazil
| | - Fátima Regina Ferreira Jaenisch
- Embrapa Suínos e Aves, Rodovia BR-153, Km 110, Distrito de Tamanduá, Caixa Postal: 321, Concórdia, Santa Catarina 89715-899 Brazil
| | | | | | - Ricardo Zanella
- Universidade de Passo Fundo, Passo Fundo, RS Brazil
- Programa de Mestrado em BioExperimentação, UPF, Passo Fundo, RS Brazil
| | - Jorge Augusto Petroli Marchesi
- Embrapa Suínos e Aves, Rodovia BR-153, Km 110, Distrito de Tamanduá, Caixa Postal: 321, Concórdia, Santa Catarina 89715-899 Brazil
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP Brazil
| | - José Rodrigo Pandolfi
- Embrapa Suínos e Aves, Rodovia BR-153, Km 110, Distrito de Tamanduá, Caixa Postal: 321, Concórdia, Santa Catarina 89715-899 Brazil
| | | | - Mônica Corrêa Ledur
- Embrapa Suínos e Aves, Rodovia BR-153, Km 110, Distrito de Tamanduá, Caixa Postal: 321, Concórdia, Santa Catarina 89715-899 Brazil
- Programa de Pós-Graduação em Zootecnia, UDESC-Oeste, Chapecó, SC Brazil
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Guo C, Zhao Z, Deng X, Chen Z, Tu Z, Yuan G. Regulation of angiopoietin-like protein 8 expression under different nutritional and metabolic status. Endocr J 2019; 66:1039-1046. [PMID: 31631098 DOI: 10.1507/endocrj.ej19-0263] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) is a chronic metabolic disease with increasing prevalence worldwide. Angiopoietin-like protein 8 (ANGPTL8), a member of the angiopoietin-like protein family, is involved in glucose metabolism, lipid metabolism, and energy homeostasis and believed to be associated with T2DM. Expression levels of ANGPTL8 are often significantly altered in metabolic diseases, such as non-alcoholic fatty liver disease (NAFLD) and diabetes mellitus. Studies have shown that ANGPTL8, together with other members of this protein family, such as angiopoietin-like protein 3 (ANGPTL3) and angiopoietin-like protein 4 (ANGPTL4), regulates the activity of lipoprotein lipase (LPL), thereby participating in the regulation of triglyceride related lipoproteins (TRLs). In addition, members of the angiopoietin-like protein family are varyingly expressed among different tissues and respond differently under diverse nutritional and metabolic status. These findings may provide new options for the diagnosis and treatment of diabetes, metabolic syndromes and other diseases. In this review, the interaction between ANGPTL8 and ANGPTL3 or ANGPTL4, and the differential expression of ANGPTL8 responding to different nutritional and metabolic status during the regulation of LPL activity were reviewed.
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Affiliation(s)
- Chang Guo
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, China
| | - Zhicong Zhao
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, China
| | - Xia Deng
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, China
| | - Zian Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Zhigang Tu
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Guoyue Yuan
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, China
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El-Lebedy D. Association of serum angiopoietin-like protein 2 with elevated risk of cardiovascular diseases in subjects with type 2 diabetes. J Diabetes Complications 2019; 33:107421. [PMID: 31484627 DOI: 10.1016/j.jdiacomp.2019.107421] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Accepted: 08/17/2019] [Indexed: 12/12/2022]
Abstract
AIMS Although previous data have suggested ANGPTL2 and ANGPTL8 (betatrophin) to be related to atherosclerosis in humans, little is known whether this applies in patients with type 2 diabetes (T2D). In this work, we investigate association of serum ANGPTL2 and betatrophin with the risk of cardiovascular diseases (CVD) in T2D patients. METHODS We measured serum levels of ANGPTL2 and betatrophin in 150 T2D patients with and without CVD and in 100 control subjects. RESULTS Serum ANGPTL2 was significantly higher in T2D patients than in controls (p < 0.0001), and in T2D + CVD patients than T2D only patients (p = 0.0002). Serum betatrophin was lower in T2D patients than in controls but with no statistical significance (p = 0.07). Elevated serum ANGPTL2 associated with 2.83-fold increased risk of T2D and with 1.18-fold elevated risk of CVD among T2D patients with positive correlations with markers of hyperglycemia, insulin resistance and atherogenic lipid profile. ROC curve indicated ANGPTL2 as risk biomarker for T2D and CVD with sensitivity of 92.2% and 86%; and specificity of 86.7% and 58%; respectively. CONCLUSION We indicate for the first time serum ANGPTL2 as an independent risk biomarker for CVD in T2D patients. Future studies are needed to reveal its role in disease pathogenesis.
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Affiliation(s)
- Dalia El-Lebedy
- Department of Clinical and Chemical Pathology, Medical Research Division, National Research Center, Cairo, Egypt.
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Sodhi A, Ma T, Menon D, Deshpande M, Jee K, Dinabandhu A, Vancel J, Lu D, Montaner S. Angiopoietin-like 4 binds neuropilins and cooperates with VEGF to induce diabetic macular edema. J Clin Invest 2019; 129:4593-4608. [PMID: 31545295 PMCID: PMC6819094 DOI: 10.1172/jci120879] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 08/01/2019] [Indexed: 02/06/2023] Open
Abstract
The majority of patients with diabetic macular edema (DME), the most common cause of vision loss in working-age Americans, do not respond adequately to current therapies targeting VEGFA. Here, we show that expression of angiopoietin-like 4 (ANGPTL4), a HIF-1-regulated gene product, is increased in the eyes of diabetic mice and patients with DME. We observed that ANGPTL4 and VEGF act synergistically to destabilize the retinal vascular barrier. Interestingly, while ANGPTL4 modestly enhanced tyrosine phosphorylation of VEGF receptor 2, promotion of vascular permeability by ANGPTL4 was independent of this receptor. Instead, we found that ANGPTL4 binds directly to neuropilin 1 (NRP1) and NRP2 on endothelial cells (ECs), leading to rapid activation of the RhoA/ROCK signaling pathway and breakdown of EC-EC junctions. Treatment with a soluble fragment of NRP1 (sNRP1) prevented ANGPTL4 from binding to NRP1 and blocked ANGPTL4-induced activation of RhoA as well as EC permeability in vitro and retinal vascular leakage in diabetic animals in vivo. In addition, sNRP1 reduced the stimulation of EC permeability by aqueous fluid from patients with DME. Collectively, these data identify the ANGPTL4/NRP/RhoA pathway as a therapeutic target for the treatment of DME.
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Affiliation(s)
- Akrit Sodhi
- Wilmer Eye Institute, Johns Hopkins School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Tao Ma
- Department of Oncology and Diagnostic Sciences, School of Dentistry, and
| | - Deepak Menon
- Department of Oncology and Diagnostic Sciences, School of Dentistry, and
| | - Monika Deshpande
- Wilmer Eye Institute, Johns Hopkins School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Kathleen Jee
- Wilmer Eye Institute, Johns Hopkins School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | | | - Jordan Vancel
- Wilmer Eye Institute, Johns Hopkins School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Daoyuan Lu
- Department of Oncology and Diagnostic Sciences, School of Dentistry, and
| | - Silvia Montaner
- Department of Oncology and Diagnostic Sciences, School of Dentistry, and,Greenebaum Cancer Center, University of Maryland, Baltimore (UMB), Maryland, USA
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Saini J, Goyal AK, Jangra A. High-fat diet with alcohol elevate oxidative stress which cause hyperlipidemia by inducing mutation in the ANGPTL3 locus. Int J Diabetes Dev Ctries 2019. [DOI: 10.1007/s13410-019-00773-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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Khudyakov JI, Abdollahi E, Ngo A, Sandhu G, Stephan A, Costa DP, Crocker DE. Expression of obesity-related adipokine genes during fasting in a naturally obese marine mammal. Am J Physiol Regul Integr Comp Physiol 2019; 317:R521-R529. [DOI: 10.1152/ajpregu.00182.2019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Northern elephant seals ( Mirounga angustirostris) are exceptional among fasting-adapted animals in coupling prolonged fasting with energetically costly activities, relying on oxidation of fat stores accrued during foraging to power metabolic demands of reproduction and molting. We hypothesized that high rates of energy expenditure, insulin resistance, and immune responses to colonial breeding in fasting seals are mediated by adipokines, or signaling molecules secreted by adipose tissue that are associated with obesity and inflammation in humans. We measured mRNA expression of 10 adipokine genes in blubber tissue of adult female elephant seals sampled early and late during their lactation and molting fasts and correlated gene expression with adiposity and circulating levels of corticosteroid and immune markers. Expression of adiponectin ( ADIPOQ) and its receptor ADIPOR2, leptin receptor ( LEPR), resistin ( RETN), retinol binding protein 4 ( RBP4), and visfatin/nicotinamide phosphoribosyltransferase ( NAMPT) was increased, whereas that of fat mass and obesity-associated protein ( FTO) was decreased in late-fasted compared with early-fasted groups. Abundance of adipokine transcripts that increased in late fasting was negatively associated with body mass and positively associated with cortisol, suggesting that they may mediate local metabolic effects of cortisol in blubber during fasting. Expression of several adipokines was correlated with the immune markers IL-6, haptoglobin, IgM, and IgE, suggesting a potential role in modulating immune responses to colonial breeding and molting. Since many of these adipokines have not been measured in other wild animals, this study provides preliminary insights into their local regulation in fat tissue and targeted assays for future studies.
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Affiliation(s)
- Jane I. Khudyakov
- Department of Biological Sciences, University of the Pacific, Stockton, California
- National Marine Mammal Foundation, San Diego, California
| | - Eileen Abdollahi
- Department of Biological Sciences, University of the Pacific, Stockton, California
| | - Angela Ngo
- Department of Biological Sciences, University of the Pacific, Stockton, California
| | - Gureet Sandhu
- Department of Biological Sciences, University of the Pacific, Stockton, California
| | - Alicia Stephan
- Department of Biological Sciences, University of the Pacific, Stockton, California
| | - Daniel P. Costa
- Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, California
| | - Daniel E. Crocker
- Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, California
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Han X, Dai R, Zhai Y, Shen Q, Sun L, Liu H, Xu H. Anti-proteinuria effect of antibody against ANGPTL3 coil-coiled domain on adriamycin-induced nephropathy in mice. Biochem Biophys Res Commun 2019; 516:812-818. [PMID: 31256934 DOI: 10.1016/j.bbrc.2019.06.065] [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: 06/07/2019] [Accepted: 06/13/2019] [Indexed: 11/28/2022]
Abstract
Proteinuria is an important marker and is closely related to the progressive decline of renal function. Our previous research showed that angiopoietin-like-3 (ANGPTL3) plays a crucial role in proteinuria. In this study, we prepared an antibody against ANGPTL3 coil-coiled domain (ANGPTL3-CCD) and investigated the protective effect of anti-ANGPTL3-CCD antibody in mice with adriamycin-induced nephropathy. Nephropathy was established by adriamycin injection at a dose of 25 mg per kg in 8-12 week-old male mice in the ADR group. Blockade of ANGPTL3 by anti-ANGPTL3-CCD antibody (20 mg per kg) was performed every three days nine times after adriamycin injection in the ADR plus anti-angptl3-antibody group. The anti-ANGPTL3-CCD antibody can specifically recognize ANGPTL3. After anti-ANGPTL3-CCD antibody intervention, the urinary protein level in the ADR plus anti-angptl3-antibody group was significantly lower than that in the ADR group. Serum albumin was higher and triglyceride and total cholesterol were lower in the ADR plus anti-angptl3-antibody group than in the ADR group. The levels of serum creatinine did not significantly differ among the groups. Focal sclerotic glomeruli and podocyte foot processes extensive fusion were found in the renal tissue of the ADR group, whereas no sclerotic glomeruli and only partial fusion were found in the ADR plus anti-angptl3-antibody group. This study demonstrated that the anti-ANGPTL3-CCD antibody ameliorated proteinuria and podocyte dysfunction in adriamycin-induced nephropathy in mice.
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Affiliation(s)
- Xinli Han
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai, China; Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China
| | - Rufeng Dai
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai, China; Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China
| | - Yihui Zhai
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai, China; Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China
| | - Qian Shen
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai, China; Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China
| | - Li Sun
- Department of Rheumatology, Children's Hospital of Fudan University, Shanghai, China
| | - Haimei Liu
- Department of Rheumatology, Children's Hospital of Fudan University, Shanghai, China.
| | - Hong Xu
- Department of Rheumatology, Children's Hospital of Fudan University, Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China.
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128
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Reduced miR-181d level in obesity and its role in lipid metabolism via regulation of ANGPTL3. Sci Rep 2019; 9:11866. [PMID: 31413305 PMCID: PMC6694160 DOI: 10.1038/s41598-019-48371-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 07/29/2019] [Indexed: 12/14/2022] Open
Abstract
Obesity impacts the endocrine and metabolic functions of the adipose tissue. There is increasing interest in the role of epigenetic factors in obesity and its impact on diabetes and dyslipidemia. One such substance, miR-181, reduces plasma triglyceride levels in mice by targeting isocitrate dehydrogenase 1. In the other hand, the adipocyte differentiation and lipid regulating hormone angiopoietin-like 3 (ANGPTL3) is a known regulator of circulating apolipoproteins through its inhibition of the lipoprotein lipase activity. We aimed to study the miR-181d expression in the blood and adipose tissue in a cohort of obese and non-obese people, assessing its possible role in obesity. We also aimed to confirm whether miR-181d can bind and regulate ANGPTL3. miR-181d expression levels were investigated in 144 participants, 82 who were non-obese (body mass index [BMI] < 30) and 62 who were obese (BMI > 30). miR-181d levels in plasma and adipose tissue were measured by RT-PCR. Hepatocyte cell cultures were assessed by overexpression and 3′-UTR-luciferase assays for miR-181d binding to its target protein and its effect on the protein. The plasma levels of ANGPTL3 were also measured by ELISA. The miR-181d levels were significantly lower in obese than in non-obese individuals. In vitro analysis confirmed miR-181 binding to and repression of the ANGPTL3 transcript. Obesity leads to alterations in miR-181d expression. Its downregulation in obese humans was inversely correlated with ANGPTL3, a protein involved in adipocyte differentiation and lipid metabolism. miR-181d can be used as an inhibitor of ANGPTL3 to reduce the TG plasma level.
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129
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High Expression of Angiopoietin-like Protein 4 in Advanced Colorectal Cancer and its Association with Regulatory T Cells and M2 Macrophages. Pathol Oncol Res 2019; 26:1269-1278. [PMID: 31264122 DOI: 10.1007/s12253-019-00695-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 06/23/2019] [Indexed: 12/30/2022]
Abstract
Colorectal cancer (CRC) is one of the most aggressive tumours in the human digestive system. Most CRC patients have poor prognosis due to metastasis and recurrence. Angiopoietin-like 4 (ANGPTL4) is involved in tumour development. Regulatory T (Treg) cells and M2 macrophages promote tumour growth and metastasis. Herein, we explored the changes of ANGPTL4 expression in CRC patients at different stages and observed whether in situ tumour-Treg and -M2 macrophages are correlated with ANGPTL4 expression. Serum ANGPTL4 (sANGPTL4) levels of 70 CRC patients and 10 healthy controls were detected by ELISA. ANGPTL4, Foxp3 and CD163 expression levels in CRC tissues were measured by immunohistochemistry. Recombinant ANGPTL4 (rANGPTL4) proteins were further added into cell-culture systems for induction of Treg cells and M2 macrophages. The results showed both sANGPTL4 and in situ tumour-ANGPTL4 expression levels increased in Dukes C-D stage CRC patients. Foxp3+ and CD163+ cells in tumour tissue sections were also more intensive in Dukes C-D stage patients than in Dukes A-B stage patients. Foxp3+ and CD163+ cells in tumour tissues were positively correlated with both tissue and sANGPTL4 expression (P < 0.01). Recombinant ANGPTL4 promoted the induction of murine Treg cells and M2 macrophages ex vivo. Therefore, elevated ANGPTL4 expression could be a marker for advanced CRC. Treg cell and M2 macrophage induction could be one of the mechanisms of tumour promotion mediated by ANGPTL4.
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130
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Zhao T, Liang X, Chen J, Bao Y, Wang A, Gan X, Lu X, Wang L. ANGPTL3 inhibits renal cell carcinoma metastasis by inhibiting VASP phosphorylation. Biochem Biophys Res Commun 2019; 516:880-887. [PMID: 31270029 DOI: 10.1016/j.bbrc.2019.06.120] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 06/21/2019] [Indexed: 12/16/2022]
Abstract
Angiopoietin-like proteins (ANGPTLs) comprise a group of proteins that are structurally similar to angiopoietins. In our previous studies, we found that ANGPTL3 can inhibit sorafenib resistance in renal cell carcinoma (RCC). According to bioinformatics analysis based on data in the Cancer Genome Atlas (TCGA), we found that expression of ANGPTL3 was significantly lower in RCC tissues than in adjacent tissues and that disease-free survival and overall survival were significantly shorter in patients with lower ANGPTL3 levels than in those with higher ANGPTL3 levels. Consistent with these results, we demonstrated that RCC tissues exhibited lower ANGPTL3 mRNA and protein expression levels than paired adjacent tissues. Moreover, we found that ANGPTL3 upregulation was associated with better clinical outcomes in RCC patients. ANGPTL3 overexpression inhibited the metastatic ability in RCC cells. Mechanistically, ANGPTL3 binds to vasodilator-stimulated phosphoprotein (VASP) and inhibits its phosphorylation at amino acid 157 in RCC cells. Finally, ANGPTL3 expression and VASP-157 phosphorylation may be combined to predict the prognosis of RCC patients. Overall, our findings describe the role of ANGPTL3 in inhibiting RCC metastasis and thus provide new molecular markers for RCC treatment and prognosis.
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Affiliation(s)
- Tangliang Zhao
- Department of Urology, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Xiaolong Liang
- Department of Urology, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Junming Chen
- Department of Urology, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Yi Bao
- Department of Urology, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Anbang Wang
- Department of Urology, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Xinxin Gan
- Department of Urology, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Xin Lu
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China.
| | - Linhui Wang
- Department of Urology, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China.
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Li H, Xu M, Zhao L, Xia H, Li Y, Hong X, Deng X, Yuan J, Ding Y, Guo C, Pan R, Wang D, Wang J, Yin W, Yang L, Yuan G. Decreased circulating levels of ANGPTL8 in Graves' disease patients. Hormones (Athens) 2019; 18:189-195. [PMID: 30900216 PMCID: PMC6690861 DOI: 10.1007/s42000-019-00095-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 01/30/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Angiopoietin-like protein 8 (ANGPTL8), a newly identified hormone, has been recently characterized as a metabolic regulator which can affect energy homeostasis and has interesting potentials as a metabolic disease therapy. However, little is as yet known as to whether circulating ANGPTL8 levels are altered in thyroid dysfunction. This study measured serum ANGPTL8 levels in patients with Graves' disease and explored the correlations between its serum levels and thyroid index in Graves' disease. METHODS The concentration of ANGPTL8 was analyzed in blood samples of 128 well-characterized individuals whose anthropometric parameters, biochemical parameters, and thyroid index were measured. The participants were divided into Graves' disease patients (n = 60) and healthy control subjects (n = 68). Logistic regression was used to evaluate the relationship between ANGPTL8 and Graves' disease. RESULTS Serum ANGPTL8 levels were more significantly decreased in Graves' disease patients than in healthy control subjects (177.67 ± 135.07 vs 326.41 ± 194.72 pg/mL; p < 0.001). Serum ANGPTL8 was negatively correlated with free triiodothyronine (FT3), free thyroxine (FT4), and thyroid peroxidase antibodies (TPOAb) while being positively correlated with thyrotropin (TSH). Logistic regression analyses demonstrated that serum ANGPTL8 was significantly associated with Graves' disease (p < 0.05). CONCLUSIONS Circulating concentrations of ANGPTL8 showed a significant reduction in Graves' disease patients. Thus, it is suggested that thyroid function should be taken into consideration when evaluating the results of ANGPTL8.
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Affiliation(s)
- Haoxiang Li
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, 438, Jiefang Road, Zhenjiang, 212001 Jiangsu China
| | - Mengjiao Xu
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, 438, Jiefang Road, Zhenjiang, 212001 Jiangsu China
| | - Li Zhao
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, 438, Jiefang Road, Zhenjiang, 212001 Jiangsu China
| | - Hong Xia
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, 438, Jiefang Road, Zhenjiang, 212001 Jiangsu China
| | - Yanyan Li
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, 438, Jiefang Road, Zhenjiang, 212001 Jiangsu China
| | - Xiafei Hong
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, 438, Jiefang Road, Zhenjiang, 212001 Jiangsu China
| | - Xia Deng
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, 438, Jiefang Road, Zhenjiang, 212001 Jiangsu China
| | - Jing Yuan
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, 438, Jiefang Road, Zhenjiang, 212001 Jiangsu China
| | - Yi Ding
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, 438, Jiefang Road, Zhenjiang, 212001 Jiangsu China
| | - Chang Guo
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, 438, Jiefang Road, Zhenjiang, 212001 Jiangsu China
| | - Ruirong Pan
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, 438, Jiefang Road, Zhenjiang, 212001 Jiangsu China
| | - Dong Wang
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, 438, Jiefang Road, Zhenjiang, 212001 Jiangsu China
| | - Jifang Wang
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, 438, Jiefang Road, Zhenjiang, 212001 Jiangsu China
| | - Wei Yin
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, 438, Jiefang Road, Zhenjiang, 212001 Jiangsu China
| | - Ling Yang
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, 438, Jiefang Road, Zhenjiang, 212001 Jiangsu China
| | - Guoyue Yuan
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, 438, Jiefang Road, Zhenjiang, 212001 Jiangsu China
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132
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Chen E, Tang C, Peng K, Cheng X, Wei Y, Liu T. ANGPTL6-mediated angiogenesis promotes alpha fetoprotein-producing gastric cancer progression. Pathol Res Pract 2019; 215:152454. [PMID: 31146977 DOI: 10.1016/j.prp.2019.152454] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Accepted: 05/17/2019] [Indexed: 02/08/2023]
Abstract
Alpha-fetoprotein (AFP)-producing gastric cancer (AFPGC) is regarded as a rare but highly malignant gastric adenocarcinoma subtype and its clinic pathological presentation mimics hepatocellular carcinoma. However, the underlying mechanism of this disease remains elusive. The level of ANGPTL6 in AFPGC cell lines is much higher than that of common types of gastric cancer cells. A high level of ANGPTL6 confers a poor prognosis and is correlated with the expression of CD34 (an endothelial cell marker). ANGPTL6 promotes endothelial cell migration and tube formation, Moreover, ANGPTL6 knockdown inhibits cancer cell apoptosis and invasiveness. Mechanistically, ANGPTL6 activates the ERK1/2 and AKT pathways. Treatment of ERK1/2 or AKT inhibitor can attenuated cell migration and tube formation. ANGPTL6 loss results in tumor growth in vivo. Our study revealed that ANGPTL6 is an important driver gene of angiogenesis in AFPGC development. These findings provide not only an effective biomarker for diagnosis but also an attractive therapeutic target for use in AFPGC patients.
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Affiliation(s)
- Erbao Chen
- Department of Medical Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Cheng Tang
- Department of Medical Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ke Peng
- Department of Medical Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xi Cheng
- Department of Medical Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yichou Wei
- Department of Medical Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Tianshu Liu
- Department of Medical Oncology, Zhongshan Hospital, Fudan University, Shanghai, China; Center of Evidence-based Medicine, Fudan University, Shanghai, China.
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133
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Vendrame F, Olops L, Saad STO, Costa FF, Fertrin KY. Hypocholesterolemia and dysregulated production of angiopoietin-like proteins in sickle cell anemia patients. Cytokine 2019; 120:88-91. [PMID: 31054480 DOI: 10.1016/j.cyto.2019.04.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 04/05/2019] [Accepted: 04/19/2019] [Indexed: 12/24/2022]
Abstract
Angiopoietin-like proteins (ANGPTL) are responsible for inhibiting lipoprotein lipase activity, and ANGPTL3 and ANGPTL4 deficiencies have been shown to lower lipoprotein levels in animal models and in humans carrying loss-of-function mutations. Sickle cell anemia (SCA) is a hereditary hemolytic anemia characterized by vaso-occlusive crises and end-organ damage, which is curiously associated with hypocholesterolemia and a low incidence of atherosclerosis, whose underlying mechanisms are unclear. We hypothesized that ANGPTL3 and ANGPTL4 dysregulation is responsible for the hypolipidemic phenotype in SCA. We measured circulating concentrations of ANGPTL3 and ANGPTL4 and correlated them with hemolytic biomarkers and lipoproteins in 40 patients with SCA and 30 control individuals. The association between hemolysis and low cholesterol levels in SCA was confirmed along with surprisingly higher levels of ANGPTL3 and ANGPTL4 in SCA patients than in controls. ANGPTL3 correlated with hemolysis markers LDH and reticulocyte counts, while ANGPTL4 did not. Our data show a paradoxical increase in production of ANGPTL3 and ANGPTL4 in SCA, which would be expected to cause hyperlipidemia, due to increased inhibition of lipoprotein lipase. ANGPTL3, exclusively produced by the liver, correlated with hemolysis markers, suggesting a possible hepatic response to hemolysis. Further functional studies and replication in larger cohorts are warranted to investigate the dysregulation of lipid metabolism in SCA.
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Affiliation(s)
- Felipe Vendrame
- Hematology and Hemotherapy Center, University of Campinas - UNICAMP, Campinas, Brazil
| | - Leticia Olops
- Hematology and Hemotherapy Center, University of Campinas - UNICAMP, Campinas, Brazil
| | | | | | - Kleber Yotsumoto Fertrin
- Hematology and Hemotherapy Center, University of Campinas - UNICAMP, Campinas, Brazil; Division of Hematology, University of Washington, Seattle, WA, USA.
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134
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Tarugi P, Bertolini S, Calandra S. Angiopoietin-like protein 3 (ANGPTL3) deficiency and familial combined hypolipidemia. J Biomed Res 2019; 33:73-81. [PMID: 29752428 PMCID: PMC6477171 DOI: 10.7555/jbr.32.20170114] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Three members of the angiopoietin-like (ANGPTL) protein family-ANGPTL3, ANGPTL4 and ANGPTL8- are important regulators of plasma lipoproteins. They inhibit the enzyme lipoprotein lipase, which plays a key role in the intravascular lipolysis of triglycerides present in some lipoprotein classes. This review focuses on the role of ANGPTL3 as emerged from the study of genetic variants of Angptl3 gene in mice and humans. Both loss of function genetic variants and inactivation of Angptl3 gene in mice are associated with a marked reduction of plasma levels of triglyceride and cholesterol and an increased activity of lipoprotein lipase and endothelial lipase. In humans with ANGPTL3 deficiency, caused by homozygous loss of function (LOF) variants of Angptl3 gene, the levels of all plasma lipoproteins are greatly reduced. This plasma lipid disorder referred to as familial combined hypolipidemia (FHBL2) does not appear to be associated with distinct pathological manifestations. Heterozygous carriers of LOF variants have reduced plasma levels of total cholesterol and triglycerides and are at lower risk of developing atherosclerotic cardiovascular disease, as compared to non-carriers. These observations have paved the way to the development of strategies to reduce the plasma level of atherogenic lipoproteins in man by the inactivation of ANGPTL3, using either a specific monoclonal antibody or anti-sense oligonucleotides.
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Affiliation(s)
- Patrizia Tarugi
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena 41125, Italy
| | - Stefano Bertolini
- Department of Internal Medicine, University of Genova, Genova 16148, Italy
| | - Sebastiano Calandra
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena 41125, Italy
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135
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Al-Temaimi R, Cherian P, Abu-Farha M, Alroughani R. Angiopoietin-like proteins in multiple sclerosis. J Neuroimmunol 2019; 330:31-34. [PMID: 30784773 DOI: 10.1016/j.jneuroim.2019.02.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 02/14/2019] [Accepted: 02/14/2019] [Indexed: 11/30/2022]
Abstract
Angiopoietin-like proteins (ANGPTLs) are a group of proteins with functions in lipid metabolism, angiogenesis, and inflammation. Here, we investigated their involvement in multiple sclerosis (MS) progression and response to treatment in 100 MS patients and 77 healthy controls. ANGPTLs significantly associated with MS progression and response to therapy. High ANGPTL6 levels associated with slow disease progression and good response to fingolimod treatment and low ANGPTL4 associated with poor response to natalizumab treatment. Therefore, we propose high ANGPTL4 and 6 levels as markers for positive response to MS treatments either natalizumab or fingolimod respectively. Further investigations into their role in MS is warranted.
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Affiliation(s)
- Rabeah Al-Temaimi
- Human Genetics Unit, Department of Pathology, Faculty of Medicine, Kuwait University, Kuwait.
| | - Preethi Cherian
- Biochemistry and Molecular Biology Unit, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Mohamed Abu-Farha
- Biochemistry and Molecular Biology Unit, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Raed Alroughani
- Division of Neurology, Department of Medicine, Amiri Hospital, Kuwait
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136
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Groeger S, Meyle J. Oral Mucosal Epithelial Cells. Front Immunol 2019; 10:208. [PMID: 30837987 PMCID: PMC6383680 DOI: 10.3389/fimmu.2019.00208] [Citation(s) in RCA: 200] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 01/23/2019] [Indexed: 12/14/2022] Open
Abstract
Cellular Phenotype and Apoptosis: The function of epithelial tissues is the protection of the organism from chemical, microbial, and physical challenges which is indispensable for viability. To fulfill this task, oral epithelial cells follow a strongly regulated scheme of differentiation that results in the formation of structural proteins that manage the integrity of epithelial tissues and operate as a barrier. Oral epithelial cells are connected by various transmembrane proteins with specialized structures and functions. Keratin filaments adhere to the plasma membrane by desmosomes building a three-dimensional matrix. Cell-Cell Contacts and Bacterial Influence: It is known that pathogenic oral bacteria are able to affect the expression and configuration of cell-cell junctions. Human keratinocytes up-regulate immune-modulatory receptors upon stimulation with bacterial components. Periodontal pathogens including P. gingivalis are able to inhibit oral epithelial innate immune responses through various mechanisms and to escape from host immune reaction, which supports the persistence of periodontitis and furthermore is able to affect the epithelial barrier function by altering expression and distribution of cell-cell interactions including tight junctions (TJs) and adherens junctions (AJs). In the pathogenesis of periodontitis a highly organized biofilm community shifts from symbiosis to dysbiosis which results in destructive local inflammatory reactions. Cellular Receptors: Cell-surface located toll like receptors (TLRs) and cytoplasmatic nucleotide-binding oligomerization domain (NOD)-like receptors (NLRs) belong to the pattern recognition receptors (PRRs). PRRs recognize microbial parts that represent pathogen-associated molecular patterns (PAMPs). A multimeric complex of proteins known as inflammasome, which is a subset of NLRs, assembles after activation and proceeds to pro-inflammatory cytokine release. Cytokine Production and Release: Cytokines and bacterial products may lead to host cell mediated tissue destruction. Keratinocytes are able to produce diverse pro-inflammatory cytokines and chemokines, including interleukin (IL)-1, IL-6, IL-8 and tumor necrosis factor (TNF)-α. Infection by pathogenic bacteria such as Porphyromonas gingivalis (P. gingivalis) and Aggregatibacter actinomycetemcomitans (A. actinomycetemcomitans) can induce a differentiated production of these cytokines. Immuno-modulation, Bacterial Infection, and Cancer Cells: There is a known association between bacterial infection and cancer. Bacterial components are able to up-regulate immune-modulatory receptors on cancer cells. Interactions of bacteria with tumor cells could support malignant transformation an environment with deficient immune regulation. The aim of this review is to present a set of molecular mechanisms of oral epithelial cells and their reactions to a number of toxic influences.
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Affiliation(s)
- Sabine Groeger
- Department of Periodontology, Justus-Liebig-University of Giessen, Giessen, Germany
| | - Joerg Meyle
- Department of Periodontology, Justus-Liebig-University of Giessen, Giessen, Germany
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137
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Ehrlich KC, Lacey M, Ehrlich M. Tissue-specific epigenetics of atherosclerosis-related ANGPT and ANGPTL genes. Epigenomics 2019; 11:169-186. [PMID: 30688091 PMCID: PMC6371847 DOI: 10.2217/epi-2018-0150] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Aim: To understand tissue-specific regulation of angiopoietin/angiopoietin-like (ANGPT/ANGPTL) genes (especially the five genes embedded in introns of host genes) and their association with atherosclerosis. Methods: Transcription and epigenomic databases from various normal tissues were examined in the vicinity of ANGPT1, ANGPT2, ANGPTL1, ANGPTL2, ANGPTL3, ANGPTL4 and ANGPTL8. Results: We identified tissue-specific enhancer chromatin regions that are likely to regulate transcription of ANGPT/ANGPTL genes and were intragenic, intergenic or host gene-linked. In addition, we found atherosclerosis-linked differentially methylated regions associated with ANGPT2 and with sequences encoding miR-145, a microRNA that targets ANGPT2 mRNA in cancers. Conclusion: Our findings implicate enhancers as major contributors to tissue-specific expression of ANGPT/ANGPTL genes, which play critical roles in angiogenesis, atherosclerosis, cancer, and inflammatory and metabolic diseases.
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Affiliation(s)
- Kenneth C Ehrlich
- Center for Bioinformatics & Genomics, Tulane University Health Sciences Center, New Orleans, LA 70112, USA
| | - Michelle Lacey
- Department of Mathematics, Tulane University, New Orleans, LA 70118, USA.,Tulane Cancer Center, Tulane University Health Sciences Center, New Orleans, LA 70112, USA
| | - Melanie Ehrlich
- Center for Bioinformatics & Genomics, Tulane University Health Sciences Center, New Orleans, LA 70112, USA.,Tulane Cancer Center, Tulane University Health Sciences Center, New Orleans, LA 70112, USA.,Hayward Genetics Center Tulane University Health Sciences Center, New Orleans, LA 70112, USA
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138
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Park CY, Moon J, Jo G, Lee J, Kim OY, Oh H, Lim H, Shin MJ. The association between genetic variants of angiopoietin-like 3 and risk of diabetes mellitus is modified by dietary factors in Koreans. Sci Rep 2019; 9:766. [PMID: 30683883 PMCID: PMC6347602 DOI: 10.1038/s41598-018-36581-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 11/22/2018] [Indexed: 11/09/2022] Open
Abstract
The role of angiopoietin-like 3 (ANGPTL3) in blood lipid levels, cardiovascular disease risk, and glucose metabolism has received wide attention. This study aimed to examine whether rs11207997 in ANGPTL3 is associated with a 10-year risk of diabetes mellitus (DM) and if the association is modified by the consumption of certain food groups or nutrients. A prospective cohort study was designed using the Ansan-Ansung data of the Korean Genome and Epidemiology Study (n = 7,358; age ≥40 years at baseline). Participants with the T allele of rs11207997, particularly TT homozygotes, had lower triglyceride (TG) and total cholesterol levels than those with CC. There was no association with fasting blood glucose or other biochemical parameters. ANGPTL3 mRNA was positively associated with circulating TG levels and blood pressure (all p < 0.05). Cox proportional hazard models showed that the rs11207997 T allele is associated with a lower risk of DM after adjusting for covariates (hazard ratio: 0.90, 95% confidence interval: 0.812-0.998, p = 0.046). Furthermore, the association between rs11207997 and the risk of DM was modified by dietary factors. These associations were no longer statistically significant when additionally adjusted for baseline TG, a potential mediator. Our data suggest that genetic variation of rs11207997 in the ANGPTL3 gene is associated with risk of DM, possibly through contributing to a lifelong set point of TG.
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Affiliation(s)
- Clara Yongjoo Park
- Department of Food and Nutrition, Human Ecology Research Institute, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Jiyoung Moon
- Department of Public Health Sciences, BK21PLUS Program in Embodiment: Health-Society Interaction, Graduate School, Korea University, Seoul, 02841, Republic of Korea
| | - Garam Jo
- Department of Public Health Sciences, BK21PLUS Program in Embodiment: Health-Society Interaction, Graduate School, Korea University, Seoul, 02841, Republic of Korea
| | - Juhee Lee
- Department of Public Health Sciences, BK21PLUS Program in Embodiment: Health-Society Interaction, Graduate School, Korea University, Seoul, 02841, Republic of Korea
| | - Oh Yoen Kim
- Department of Food Science and Nutrition, Dong-A University, Busan, 49315, Republic of Korea
| | - Hannah Oh
- Department of Public Health Sciences, BK21PLUS Program in Embodiment: Health-Society Interaction, Graduate School, Korea University, Seoul, 02841, Republic of Korea
| | - Hyunjung Lim
- Department of Medical Nutrition, Graduate School of East-West Medical Science, Kyung Hee University, Yongin, 17104, Republic of Korea
| | - Min-Jeong Shin
- Department of Public Health Sciences, BK21PLUS Program in Embodiment: Health-Society Interaction, Graduate School, Korea University, Seoul, 02841, Republic of Korea.
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139
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Jiang C, Liu H, Sun H, Wang X, Liao H, Ma L, Cao Z. Downregulation of angiopoietin-like protein 2 inhibits cementoblast differentiation partially by activating the ERK1/2 signaling pathway. Am J Transl Res 2019; 11:314-326. [PMID: 30787989 PMCID: PMC6357320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 12/18/2018] [Indexed: 06/09/2023]
Abstract
Angiopoietin-like protein 2 (ANGPTL2) is abundantly expressed in adipose tissue, is associated with tissue homeostasis, and promotes osteoblast and chondrocyte differentiation. In teeth, cementum, a thin layer of mineralized tissue that is formed by cementoblasts, covers the entire root surface and is a vital component of periodontium. The cementoblasts regulate the deposition and mineralization of the cementum matrix. However, the effects of ANGPTL2 on cementoblast differentiation have not been studied. The objective of this study was to elucidate the role of ANGPTL2 during cementoblast differentiation and determine its underlying mechanisms. Our results showed that the expression levels of ANGPTL2 gradually increased during cementoblast differentiation. After ANGPTL2 was knocked down using short-hairpin RNA, the levels of the osteogenic markers osterix (OSX), alkaline phosphatase (ALP), bone sialoprotein (BSP), and osteocalcin (OCN) decreased. In addition, ALP activity and the number of calcified nodules were dramatically reduced compared with those in the negative control. Interestingly, the ERK1/2 signaling pathway was activated after ANGPTL2 knockdown. Treatment with PD98059, the inhibitor of the ERK1/2 signaling pathway, partially rescued the decreased differentiation capability of cementoblast caused by ANGPTL2 downregulation. Collectively, ANGPTL2 knockdown inhibited cementoblast differentiation partially by activating the ERK1/2 signaling pathway. These findings suggest that ANGPTL2 was indispensable in cementoblast differentiation.
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Affiliation(s)
- Chenxi Jiang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS) and Key Laboratory for Oral Biomedical Engineering of Ministry of Education (KLOBME), School and Hospital of Stomatology, Wuhan UniversityWuhan, China
| | - Huan Liu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS) and Key Laboratory for Oral Biomedical Engineering of Ministry of Education (KLOBME), School and Hospital of Stomatology, Wuhan UniversityWuhan, China
- Department of Periodontology, School and Hospital of Stomatology, Wuhan UniversityWuhan, China
| | - Hualing Sun
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS) and Key Laboratory for Oral Biomedical Engineering of Ministry of Education (KLOBME), School and Hospital of Stomatology, Wuhan UniversityWuhan, China
- Department of Periodontology, School and Hospital of Stomatology, Wuhan UniversityWuhan, China
| | - Xiaoxuan Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS) and Key Laboratory for Oral Biomedical Engineering of Ministry of Education (KLOBME), School and Hospital of Stomatology, Wuhan UniversityWuhan, China
| | - Haiqing Liao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS) and Key Laboratory for Oral Biomedical Engineering of Ministry of Education (KLOBME), School and Hospital of Stomatology, Wuhan UniversityWuhan, China
| | - Li Ma
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS) and Key Laboratory for Oral Biomedical Engineering of Ministry of Education (KLOBME), School and Hospital of Stomatology, Wuhan UniversityWuhan, China
| | - Zhengguo Cao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS) and Key Laboratory for Oral Biomedical Engineering of Ministry of Education (KLOBME), School and Hospital of Stomatology, Wuhan UniversityWuhan, China
- Department of Periodontology, School and Hospital of Stomatology, Wuhan UniversityWuhan, China
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Sertogullarindan B, Komuroglu AU, Ucler R, Gunbatar H, Sunnetcioglu A, Cokluk E. Betatrophin association with serum triglyceride levels in obstructive sleep apnea patients. Ann Thorac Med 2019; 14:63-68. [PMID: 30745937 PMCID: PMC6341867 DOI: 10.4103/atm.atm_52_18] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Obstructive sleep apnea (OSA) is a common sleep problem, in which patients are at increased risk for metabolic and cardiovascular problems, including metabolic syndrome, diabetes mellitus (DM), and dyslipidemia. Betatrophin is a novel protein that regulates fatty acid and triglyceride (TG) metabolism and is related to obesity and metabolic abnormalities, including metabolic syndrome, DM, and dyslipidemia. Although OSA and betatrophin share common abnormalities, their relationship has not been investigated. AIM The aim of this study is to investigate the relationships among betatrophin, OSA, and the serum lipid profile. METHODS Ninety consecutive patients with suspected OSA underwent polysomnography (PSG) to confirm OSA. Plasma betatrophin, leptin, adiponectin, and the full lipid profile were analyzed. The patients were categorized as OSA or control based on the apnea-hypopnea index (AHI). RESULTS About 61% of patients had OSA, and 39% had normal PSG. The levels of betatrophin, leptin, and adiponectin were higher in patients with OSA (256.59 ± 29.35, 374.20 ± 37.93, and 17.86 ± 2.63 μg/mL, respectively) compared to the controls (141.86 ± 26.20, 205.53 ± 14.75, and 7.52 ± 1.02 μg/mL, respectively). Betatrophin levels were correlated with the AHI, leptin (r = 0.413, P = 0.002, r = 0.782, P = 0.000). TG levels were significantly higher, and high-density lipoprotein cholesterol (HDL-C) levels were lower, in OSA patients compared to controls (244 ± 20.33 vs. 138 ± 14.89, and 37.21 ± 1.26 vs. 43.78 ± 1.62, respectively). The TG level was correlated with betatrophin (r = 0.353, P = 0.013). Multiple regression analysis showed that the AHI, leptin, and arousals were independent predictors of betatrophin level (B = 1.70 P = 0.046 95%, B = 0.56 P < 0.005, and B = 1, 2, P = 0.003, respectively). CONCLUSIONS Our results suggest a complex relationship between OSA, betatrophin, TG, and HDL, as well as other adipokines. Our results require further investigation to assess this complex association and re-evaluate previous related studies.
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Affiliation(s)
| | | | - Rifki Ucler
- Department of Endocrinology and Metabolism, Medical Faculty, Yuzuncu Yil University, Van, Turkey
| | - Hulya Gunbatar
- Department of Pulmonary Medicine, Medical Faculty, Yuzuncu Yil University, Van, Turkey
| | - Aysel Sunnetcioglu
- Department of Pulmonary Medicine, Medical Faculty, Yuzuncu Yil University, Van, Turkey
| | - Erdem Cokluk
- Department of Medical Biochemistry, Medical Faculty, Yuzuncu Yil University, Van, Turkey
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Alghanim G, Qaddoumi MG, Alhasawi N, Cherian P, Al-Khairi I, Nizam R, Alkayal F, Alanbaei M, Tuomilehto J, Abubaker J, Abu-Farha M, Al-Mulla F. Higher Levels of ANGPTL5 in the Circulation of Subjects With Obesity and Type 2 Diabetes Are Associated With Insulin Resistance. Front Endocrinol (Lausanne) 2019; 10:495. [PMID: 31396158 PMCID: PMC6668602 DOI: 10.3389/fendo.2019.00495] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 07/08/2019] [Indexed: 11/30/2022] Open
Abstract
Objective: The family of angiopoietin-like proteins (ANGPTLs) is composed of eight ANGPTLs members that are involved in regulating various metabolic processes and have been implicated in type 2 diabetes (T2D) and obesity. ANGPTL5 is an understudied member of this family that has been suggested to regulate triglyceride metabolism with a potential role in obesity. This study was designed to investigate the expression levels of ANGPTL5 protein in the circulation of subjects with obesity and T2D. Methods: A total of 204 subjects were enrolled in this cross-sectional study, of which 95 had diagnosed T2D and 109 did not (non-T2D). Within the non-T2D group, 39 subjects were obese (BMI ≥ 30 Kg/m2) and 70 were not (BMI < 30 Kg/m2). Among subjects with T2D, 61 were obese and 34 were non-obese. Circulating ANGPTL5 plasma levels were measured by enzyme-linked immunosorbent assay (ELISA). Results: In this study, we showed that ANGPTL5 levels were higher in the plasma of subjects with T2D [mean ± standard error of the mean (SEM): 5.78 ± 2.70 ng/mL] compared with individuals without T2D (mean ± SEM: 4.42 ± 2.22 ng/mL; P < 0.001). Obese and non-T2D subjects had significantly higher levels of ANGPTL5 (mean ± SEM: 5.115 ± 0.366 ng/mL) compared with non-obese, non-T2D subjects (mean ± SEM: 4.02 ± 0.271 ng/mL; P = 0.003). Similarly, among subjects with diagnosed T2D, those who were obese had higher ANGPTL5 plasma levels than non-obese subjects, although this difference did not reach statistical significance (P = 0.088). Correlation analyses revealed that ANGPTL5 levels positively associated with fasting plasma glucose (FPG), glycated hemoglobin (HbA1c), triglycerides (TGL), and insulin resistance as measured by HOMA-IR. Conclusion: our data shows for the first time that circulating ANGPTL5 levels were higher in obese individuals and those with T2D. Further analysis will be required to better understand the interaction between ANGPTL5 and other metabolic related biomarkers to shed more light on its role in diabetes and obesity.
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Affiliation(s)
- Ghazi Alghanim
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Mohamed G. Qaddoumi
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
- Pharmacology and Therapeutics Department, Faculty of Pharmacy, Kuwait University, Kuwait City, Kuwait
| | - Nouf Alhasawi
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Preethi Cherian
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Irina Al-Khairi
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Rasheeba Nizam
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Fadi Alkayal
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Muath Alanbaei
- Department of Medicine, Faculty of Medicine, Kuwait University, Kuwait City, Kuwait
| | | | - Jehad Abubaker
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
- *Correspondence: Jehad Abubaker
| | - Mohamed Abu-Farha
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
- Mohamed Abu-Farha ;
| | - Fahd Al-Mulla
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
- Fahd Al-Mulla
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142
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Zhou J, Chen L, Yang X, Huang X, Wang Z, Peng P, Lian J. Preliminary study of the relationship between promoter methylation of the ANGPTL2 gene and coronary heart disease. J Clin Lab Anal 2018; 33:e22702. [PMID: 30461060 DOI: 10.1002/jcla.22702] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 10/01/2018] [Accepted: 10/01/2018] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Coronary heart disease (CHD) is primarily caused by atherosclerosis of coronary arteries. It is largely an inflammatory disease of the vascular wall. The inflammation is related to DNA methylation. Angiopoietin-like protein 2 (ANGPTL2) has various functions in several chronic inflammatory diseases. Macrophage-derived ANGPTL2 was reported to accelerate CHD development. It is reported that DNA hypomethylation in the promoter region of ANGPTL2 gene was associated with acute coronary syndrome (ACS), a type of CHD. Our objective was to explore the correlation between promoter methylation of the ANGPTL2 gene and CHD, and to investigate the association between methylation status and clinical characteristics of CHD patients. METHODS Firstly, we collected 122 CHD patients and 58 non-CHD participants from Han Chinese population and purified the peripheral blood DNA. The purified DNA was subjected to bisulfite modification. After bisulfite conversion, the target DNA locus was amplified using polymerase chain reaction (PCR), and the PCR products were measured by pyrosequencing. Finally, the methylation level was calculated according to the sequencing result, and the data were analyzed using xx software. RESULTS CHD patients had a relatively lower methylation levels (P50: 7.67% [P25: 6.22%, P75: 10.43%]) in the ANGPTL2 promoter region than did controls (P50: 8.25% [P25: 5.46%, P75: 17.98%], P = 0.001), indicating an association between ANGPTL2 promoter methylation and CHD (OR: 0.890; 95% CI, 0.832-0.953; adjusted P = 0.001). A breakdown analysis by gender showed that ANGPTL2 promoter methylation was associated with CHD in females (adjusted P = 0.002) but not in males (adjusted P = 0.404). We found no correlation between gene methylation and other clinical characteristics. CONCLUSIONS The present work provides evidence to support an association between ANGPTL2 promoter DNA methylation status and the risk profile of CHD in females. Our data indicated that in females, promoter DNA hypomethylation of the ANGPTL2 gene is associated with an increased risk of CHD.
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Affiliation(s)
- Jianqing Zhou
- Ningbo Medical Center, Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
| | - Li Chen
- Ningbo Medical Center, Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China.,School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Xi Yang
- Ningbo Medical Center, Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
| | - Xiaoyan Huang
- Ningbo Medical Center, Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
| | - Zicheng Wang
- Ningbo Medical Center, Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
| | - Ping Peng
- Ningbo Medical Center, Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
| | - Jiangfang Lian
- Ningbo Medical Center, Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
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143
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Kahraman S, Altinova AE, Yalcin MM, Gulbahar O, Arslan B, Akturk M, Cakir N, Toruner FB. Association of serum betatrophin with fibroblast growth factor-21 in women with polycystic ovary syndrome. J Endocrinol Invest 2018; 41:1069-1074. [PMID: 29363048 DOI: 10.1007/s40618-018-0831-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 01/10/2018] [Indexed: 12/29/2022]
Abstract
PURPOSE Betatrophin and fibroblast growth factor-21 (FGF-21), which are recently discovered members of hepatokine/adipokine family, have been proposed to be associated with some metabolic disorders in which insulin resistance plays a major role. METHODS We aimed to investigate serum betatrophin and FGF-21 concentrations in women with polycystic ovary syndrome (PCOS). In this cross-sectional study, we recruited 31 women with PCOS and 34 women as healthy controls. Serum betatrophin level and its relationship with serum FGF-21 level as well as metabolic parameters were examined. RESULTS Serum betatrophin level was significantly higher in women with PCOS than the control group [1.10 (0.20-4.20) vs 0.70 (0.20-3.50) ng/ml, p = 0.004], whereas FGF-21 did not differ between the groups [74.80 (7.80-435.90) vs 119.30 (10.50-443.40) pg/ml, p = 0.13]. Serum betatrophin correlated positively with LH levels (r = 0.26, p = 0.03). After controlling BMI, there was a significant positive correlation between betatrophin and FGF-21 (r = 0.25, p = 0.04). Multivariate regression analysis revealed that FGF-21 and presence of PCOS were the significant predictors of betatrophin concentrations (R2 = 0.22, F = 2.56, p = 0.03). CONCLUSIONS Our results indicate that betatrophin levels are increased and associated with LH and FGF-21 levels, but not with insulin resistance, in women with PCOS.
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Affiliation(s)
- S Kahraman
- Department of Internal Medicine, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - A E Altinova
- Department of Endocrinology and Metabolism, Faculty of Medicine, Gazi University, Beşevler, 06500, Ankara, Turkey.
| | - M M Yalcin
- Department of Endocrinology and Metabolism, Faculty of Medicine, Gazi University, Beşevler, 06500, Ankara, Turkey
| | - O Gulbahar
- Department of Biochemistry, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - B Arslan
- Department of Biochemistry, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - M Akturk
- Department of Endocrinology and Metabolism, Faculty of Medicine, Gazi University, Beşevler, 06500, Ankara, Turkey
| | - N Cakir
- Department of Endocrinology and Metabolism, Faculty of Medicine, Gazi University, Beşevler, 06500, Ankara, Turkey
| | - F B Toruner
- Department of Endocrinology and Metabolism, Faculty of Medicine, Gazi University, Beşevler, 06500, Ankara, Turkey
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Angiopoietin-like protein 3 blocks nuclear import of FAK and contributes to sorafenib response. Br J Cancer 2018; 119:450-461. [PMID: 30033448 PMCID: PMC6134083 DOI: 10.1038/s41416-018-0189-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 06/11/2018] [Accepted: 06/25/2018] [Indexed: 01/08/2023] Open
Abstract
Background Poor drug response of sorafenib is a major challenge which reduces clinical benefit of renal cell carcinoma (RCC) patients. It is therefore of great clinical significance to elucidate the underlying mechanism to restore the therapeutic response to sorafenib. Methods Angiopoietin-like protein 3 (ANGPTL3) protein levels were measured by western blot and immunohistochemistry in two cohorts of RCC patients. Loss-of-function and gain-of-function experiments were performed to investigate the biological roles of ANGPTL3 in response to sorafenib treatment in RCC cells. Human proteome microarray and immunoprecipitation analysis were performed to explore the molecular mechanisms underlying the functions of ANGPTL3. Results ANGPTL3 was upregulated in sorafenib-responsive RCC, which correlated with clinically good sorafenib response. Knockdown of ANGPTL3 conferred sorafenib-tolerance traits to RCC cells, whereas overexpression of ANGPTL3 restored sorafenib sensitivity in RCC cells. Mechanistically, ANGPTL3 bound to Focal Adhesion Kinase(FAK) and restained sorafenib induced nuclear translocation of FAK, leading to attenuate the ubiquitination of p53, which contributed to cellular apoptosis and enhanced sorafenib response. Conclusions ANGPTL3 may be a novel predictor for the response of sorafenib therapy in RCC patients, and a potential target in improving its therapeutic effect.
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Angiopoietin-like 3 Is a Potential Biomarker for Retinopathy in Type 2 Diabetic Patients. Am J Ophthalmol 2018; 191:34-41. [PMID: 29621508 DOI: 10.1016/j.ajo.2018.03.040] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 03/24/2018] [Accepted: 03/25/2018] [Indexed: 02/02/2023]
Abstract
PURPOSE To investigate whether angiopoietin-like 3 (ANGPTL3) and angiopoietin-like 4 (ANGPTL4) are differentially associated with the severity of retinopathy in patients with type 2 diabetes mellitus (T2DM). DESIGN Cross-sectional study. METHODS Serum levels of ANGPTL3, ANGPTL4, high-sensitivity C-reactive protein (CRP), vascular adhesion molecule-1 (VCAM-1), intracellular adhesion molecule-1 (ICAM-1), and vascular endothelial growth factor (VEGF) were quantified by ELISA. Retinal images were recorded to assess the grade of diabetic retinopathy (DR). Multivariable-adjusted logistic analysis was performed to estimate the association of each biomarker and DR stage. RESULTS Among 1192 T2DM patients, 426 (35.7%) had nonproliferative diabetic retinopathy (NPDR) and 56 (4.5%) had proliferative diabetic retinopathy (PDR). After adjusting for covariables, the odds ratios expressing the risk of having DR vs no DR (n = 710 vs 482) were 1.23 (95% confidence interval [CI], 1.08-1.40, P = .002) for ANGPTL3; 0.90 (95% CI, 0.79-1.02; P = .095) for ANGPTL4; and 1.14 (95% CI, 1.00-1.29; P = .044) for VEGF. The risk of having no DR vs NPDR (n = 710 vs 426) was 1.16 (95% CI, 1.01-1.32; P = .036) for ANGPTL3; 0.90 (95% CI, 0.79-1.04; P = .15) for ANGPTL4; and 1.14 (95% CI, 1.00-1.31; P = .045) for VEGF. The odds ratios of having NPDR vs PDR (n = 426 vs 56) was 1.47 (95% CI, 1.03-2.10; P = .035) for serum ANGPTL3; 0.96 (95% CI, 0.69-1.35; P = .83) for ANGPTL4; and 1.05 (95% CI, 0.77-1.45; P = .74) for VEGF. CONCLUSIONS ANGPTL3 is independently and strongly associated with DR progression in all stages. Blockade of ANGPTL3 signal in retina might postpone the onset and development of DR in T2DM patients.
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Kim MJ, Namkung J, Chang JS, Kim SJ, Park KS, Kong ID. Leptin regulates the expression of angiopoietin-like 6. Biochem Biophys Res Commun 2018; 502:397-402. [PMID: 29852166 DOI: 10.1016/j.bbrc.2018.05.180] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Accepted: 05/26/2018] [Indexed: 09/30/2022]
Abstract
Angiopoietin-like 6 (ANGPTL6) is a hepatokine that antagonizes obesity and insulin resistance by increasing energy expenditure. Despite its beneficial effects on metabolism, human studies have shown a paradoxical increase in ANGPTL6 level in the serum of patients with metabolic diseases, which has been interpreted as a compensatory upregulation. However, the regulatory mechanism of ANGPTL6 remains unclear. Since upregulation of ANGPTL6 is induced on metabolic stress, we investigated the hepatic expression of ANGPTL6 by leptin, a representative adipokine of obesity. Mice on a high-fat diet showed increased serum leptin levels and hepatic Angptl6 expression, which were attenuated by exercise training. A single leptin injection also induced hepatic ANGPTL6 expression and increased serum ANGPTL6 levels. In an in vitro model using primary hepatocytes, leptin treatment significantly upregulated ANGPTL6 expression at the mRNA and protein levels, as well as the amount of secreted ANGPTL6 protein in conditioned media. Similarly, exercise training on human participants also showed diminished serum levels of leptin and ANGPTL6. Altogether, these results strongly indicated that hepatic ANGPTL6 expression was determined by leptin.
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Affiliation(s)
- Min-Jeong Kim
- Institute of Medical Research, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, South Korea; Department of Physiology, Yonsei University Wonju College of Medicine, Wonju, South Korea
| | - Jun Namkung
- Department of Biochemistry, Yonsei University Wonju College of Medicine, Wonju, South Korea; Mitohormesis Research Center, Yonsei University Wonju College of Medicine, Wonju, South Korea
| | - Jae Seung Chang
- Mitohormesis Research Center, Yonsei University Wonju College of Medicine, Wonju, South Korea; Institute of Lifestyle Medicine, Yonsei University Wonju College of Medicine, Wonju, South Korea
| | - Soo-Jin Kim
- Department of Physiology, Yonsei University Wonju College of Medicine, Wonju, South Korea; Mitohormesis Research Center, Yonsei University Wonju College of Medicine, Wonju, South Korea
| | - Kyu-Sang Park
- Department of Physiology, Yonsei University Wonju College of Medicine, Wonju, South Korea; Mitohormesis Research Center, Yonsei University Wonju College of Medicine, Wonju, South Korea; Institute of Lifestyle Medicine, Yonsei University Wonju College of Medicine, Wonju, South Korea
| | - In Deok Kong
- Department of Physiology, Yonsei University Wonju College of Medicine, Wonju, South Korea; Institute of Lifestyle Medicine, Yonsei University Wonju College of Medicine, Wonju, South Korea.
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Lee SE, West KP, Cole RN, Schulze KJ, Wu LSF, Yager JD, Groopman J, Christian P. Novel Plasma Proteins in Nepalese School-aged Children are Associated with a Small Head Size at Birth. Sci Rep 2018; 8:6390. [PMID: 29686285 PMCID: PMC5913316 DOI: 10.1038/s41598-018-24640-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 04/06/2018] [Indexed: 12/21/2022] Open
Abstract
Fetal growth restriction increases the risk of poor childhood growth and development and chronic disease in adulthood. Yet, little is known about biological pathways that mediate the long-lasting effects of suboptimal intrauterine growth. We explored the plasma proteome in a cohort of 500 Nepalese children 6–8 years of age to identify plasma proteins associated with multiple anthropometric size indicators at birth. Among 982 proteins analyzed, no proteins differed by birth weight, length, or weight-for-length indicators. However, 25 proteins were differentially abundant in children with a small vs normal head circumference at birth (<−2 vs. ≥−2 z-scores of the WHO growth standards). Angiopoietin-like 6 was 19.4% more abundant and the other 24 proteins were 7–21% less abundant in children with a small vs normal head circumference at birth, adjusted for potential confounders. The less abundant proteins included actins, actin filament organizing proteins (α-actinin, talin, filamin, cofilin, profilin, and vinculin), proteins involved in muscle contraction, and glycolytic enzymes, which were all positively correlated with each other. A novel cluster of childhood plasma proteins involved in angiogenesis and cytoskeleton dynamics was associated with a small head size at birth. The prognostic value of an altered proteomic phenotype remains to be investigated.
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Affiliation(s)
- Sun Eun Lee
- Center for Human Nutrition, Dept. of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, 21205, USA.
| | - Keith P West
- Center for Human Nutrition, Dept. of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, 21205, USA
| | - Robert N Cole
- Mass Spectrometry and Proteomics Facility, Department of Biological Chemistry, Johns Hopkins School of Medicine, Baltimore, MD, 21205, USA
| | - Kerry J Schulze
- Center for Human Nutrition, Dept. of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, 21205, USA
| | - Lee S-F Wu
- Center for Human Nutrition, Dept. of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, 21205, USA
| | - James D Yager
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, 21205, USA
| | - John Groopman
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, 21205, USA
| | - Parul Christian
- Center for Human Nutrition, Dept. of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, 21205, USA
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148
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Volta A, Hovingh GK, Grefhorst A. Genetics of familial hypercholesterolemia: a tool for development of novel lipid lowering pharmaceuticals? Curr Opin Lipidol 2018; 29:80-86. [PMID: 29356705 DOI: 10.1097/mol.0000000000000489] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
PURPOSE OF REVIEW Familial hypercholesterolemia is characterized by high LDL cholesterol and an elevated risk to develop coronary heart disease. Mutations in LDL receptor-mediated cholesterol uptake are the main cause of familial hypercholesterolemia. However, multiple mutations in various other genes are also associated with high LDL cholesterol and even familial hypercholesterolemia. Thus, pharmaceuticals that target these genes and proteins might be attractive treatment options to reduce LDL cholesterol. This review provides an overview of the recent developments and clinical testing of such pharmaceuticals. RECENT FINDINGS About 80 genes are associated with hypercholesterolemia but only pharmaceuticals that inhibit cholesteryl ester transfer protein (CETP), angiopoietin-related protein 3 (ANGPTL3), and apolipoprotein C-III (apoC-III) have recently been tested in clinical trials. Inhibition of CETP and ANGPTL3 lowered LDL cholesterol. ANGPTL3 inhibition had the largest effect and was even effective in familial hypercholesterolemia patients. The effect of apoC-III inhibition on LDL cholesterol is not conclusive. SUMMARY Of the many potential pharmaceutical targets involved in LDL cholesterol, only a few have been studied so far. Of these, pharmaceuticals that inhibit CETP or ANGPTL3 are promising novel treatment options to reduce LDL cholesterol but the effect of apoC-III inhibition requires more research.
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Affiliation(s)
| | - G Kees Hovingh
- Department of Vascular Medicine, Academic Medical Center, Amsterdam, The Netherlands
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149
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Huang Y, Chen X, Chen X, Feng Y, Guo H, Li S, Dai T, Jiang R, Zhang X, Fang C, Hu J. Angiopoietin-like protein 8 in early pregnancy improves the prediction of gestational diabetes. Diabetologia 2018; 61:574-580. [PMID: 29167926 DOI: 10.1007/s00125-017-4505-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 10/16/2017] [Indexed: 12/13/2022]
Abstract
AIMS/HYPOTHESIS Screening high-risk individuals for gestational diabetes mellitus (GDM) in early pregnancy conventionally relies on established maternal risk factors; however, the sensitivity and specificity of these factors are not satisfactory. The present study aimed to determine whether the concentration of angiopoietin-like protein 8 (ANGPTL8), either alone or combined with other risk factors in early pregnancy, could be used to predict subsequent GDM. METHODS From August 2015 to January 2016, 474 women receiving prenatal care at around 12-16 weeks of gestation were recruited into the study. ANGPTL8 levels were measured at the first prenatal visit. All the participants received a 75 g OGTT during weeks 24-28 of gestation. RESULTS ANGPTL8 levels in early pregnancy were considerably higher in women who developed GDM than those who maintained normal glucose tolerance (2822 ± 938 vs 2120 ± 1118 pg/ml, respectively; p < 0.0001). Multivariable logistic regression revealed that ANGPTL8 levels were significantly associated with risk of GDM independent of conventional risk factors. In addition, women in the highest quartile of ANGPTL8 concentration had an 8.75-fold higher risk of developing GDM compared with women in the lowest quartile (OR8.75, 95%CI 2.43, 31.58). More importantly, incorporating ANGPTL8 into the conventional prediction model significantly increased the AUC for prediction of GDM (0.772vs 0.725; p = 0.019). CONCLUSIONS Our study suggests that ANGPTL8 levels in early pregnancy are significantly and independently associated with risk of GDM at 24-28 weeks of gestation. Combining ANGPTL8 levels with conventional risk factors could thus improve the prediction of GDM.
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Affiliation(s)
- Yun Huang
- Department of Endocrinology, The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou, Jiangsu, People's Republic of China
| | - Xin Chen
- Department of Gynaecology and Obstetrics, The Second Affiliated Hospital of Soochow University, Jiangsu, People's Republic of China
| | - Xiaohong Chen
- Department of Endocrinology, The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou, Jiangsu, People's Republic of China
| | - Yu Feng
- Department of Endocrinology, The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou, Jiangsu, People's Republic of China
| | - Heming Guo
- Department of Endocrinology, The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou, Jiangsu, People's Republic of China
| | - Sicheng Li
- Department of Endocrinology, The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou, Jiangsu, People's Republic of China
| | - Ting Dai
- Department of Endocrinology, The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou, Jiangsu, People's Republic of China
| | - Rong Jiang
- Department of Endocrinology, The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou, Jiangsu, People's Republic of China
| | - Xiaoyan Zhang
- Department of Endocrinology, The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou, Jiangsu, People's Republic of China
| | - Chen Fang
- Department of Endocrinology, The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou, Jiangsu, People's Republic of China.
| | - Ji Hu
- Department of Endocrinology, The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou, Jiangsu, People's Republic of China.
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150
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Abu-Farha M, Cherian P, Qaddoumi MG, AlKhairi I, Sriraman D, Alanbaei M, Abubaker J. Increased plasma and adipose tissue levels of ANGPTL8/Betatrophin and ANGPTL4 in people with hypertension. Lipids Health Dis 2018; 17:35. [PMID: 29490644 PMCID: PMC5831738 DOI: 10.1186/s12944-018-0681-0] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Accepted: 02/19/2018] [Indexed: 01/10/2023] Open
Abstract
Background Hypertension is a risk factor for both cardiovascular diseases (CVDs) and type 2 diabetes (T2D). Angiopoietin-like proteins (ANGPTLs), mainly ANGPTL3, ANGPTL4 and ANGPTL8, are associated with increased plasma lipid content due to their role in regulating the activity of lipoprotein lipase, a key enzyme in metabolism of the lipoprotein in circulation. Dyslipidaemia is a risk factor for hypertension development; however, the roles of ANGPTL3, ANGPTL4 and ANGPTL8 in subjects with hypertension have not yet been established. This study compared the plasma and adipose tissue levels of ANGPTL3, ANGPTL4 and ANGPTL8 in age- and body mass index-matched subjects with and without hypertension. Methods A total of 119 subjects, including 69 hypertensive and 50 non-hypertensive subjects, were enrolled. ANGPTL3, ANGPTL4 and ANGPTL8 plasma levels were measured by ELISA, whereas their levels in adipose tissue were assessed via real-time PCR. Results We found that ANGPTL4 (202.49 ± 17.44 ng/mL vs. 160.64 ± 10.36 ng/mL, p = 0.04) and ANGPTL8 levels (2310.96 ± 194.88 pg/mL vs. 1583.35 ± 138.27 pg/mL, p = 0.001) were higher in hypertensive subjects than non-hypertensive subjects. However, ANGPTL3 levels were not significantly different between the two populations. Similarly, ANGPTL4 and ANGPTL8 levels were also elevated in subjects with T2D and hypertension than in those with T2D but not hypertension. Additionally, people with highest tertiles of ANGPTL8 had higher odds of having hypertension (odd ratio [OR] = 3.8, 95% confidence interval [CI] = (1.5-9.8), p-Value = 0.005. Similar to its plasma levels, ANGPTL4 and ANGPTL8 were higher in adipose tissue. Conclusions In conclusion, our data illustrate that ANGPTL4 and ANGPTL8 levels in both plasma and adipose tissues are increased in subjects with hypertension. The elevated levels of ANGPTL4 and ANGPTL8 in hypertensive subjects highlight their potential involvement, their potential role as biomarkers for hypertension and their therapeutic value in hypertension given their roles in regulating lipid metabolism.
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Affiliation(s)
- Mohamed Abu-Farha
- Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait, Kuwait.
| | - Preethi Cherian
- Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait, Kuwait
| | - Mohamed G Qaddoumi
- Pharmacology and Therapeutics Department, Faculty of Pharmacy, Kuwait University, Kuwait, Kuwait
| | - Irina AlKhairi
- Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait, Kuwait
| | - Devarajan Sriraman
- National Dasman Diabetes Biobank, Dasman Diabetes Institute, Kuwait, Kuwait
| | - Muath Alanbaei
- Department of Medicine, Faculty of Medicine, Kuwait University, Kuwait, Kuwait
| | - Jehad Abubaker
- Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait, Kuwait.
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