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Wang ZC, Xia FP, Guo FM, Meng SS. [Mechanism and research advances of awake prone positioning in acute hypoxemic respiratory failure]. Zhonghua Nei Ke Za Zhi 2023; 62:1239-1244. [PMID: 37766447 DOI: 10.3760/cma.j.cn112138-20221004-00729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Affiliation(s)
- Z C Wang
- Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Jiangsu Provincial Key Laboratory of Critical Care Medicine, Nanjing 210009, China
| | - F P Xia
- Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Jiangsu Provincial Key Laboratory of Critical Care Medicine, Nanjing 210009, China
| | - F M Guo
- Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Jiangsu Provincial Key Laboratory of Critical Care Medicine, Nanjing 210009, China
| | - S S Meng
- Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Jiangsu Provincial Key Laboratory of Critical Care Medicine, Nanjing 210009, China
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Fu Z, Löfqvist CA, Liegl R, Wang Z, Sun Y, Gong Y, Liu CH, Meng SS, Burnim SB, Arellano I, Chouinard MT, Duran R, Poblete A, Cho SS, Akula JD, Kinter M, Ley D, Pupp IH, Talukdar S, Hellström A, Smith LE. Photoreceptor glucose metabolism determines normal retinal vascular growth. EMBO Mol Med 2019; 10:76-90. [PMID: 29180355 PMCID: PMC5760850 DOI: 10.15252/emmm.201707966] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The neural cells and factors determining normal vascular growth are not well defined even though vision‐threatening neovessel growth, a major cause of blindness in retinopathy of prematurity (ROP) (and diabetic retinopathy), is driven by delayed normal vascular growth. We here examined whether hyperglycemia and low adiponectin (APN) levels delayed normal retinal vascularization, driven primarily by dysregulated photoreceptor metabolism. In premature infants, low APN levels correlated with hyperglycemia and delayed retinal vascular formation. Experimentally in a neonatal mouse model of postnatal hyperglycemia modeling early ROP, hyperglycemia caused photoreceptor dysfunction and delayed neurovascular maturation associated with changes in the APN pathway; recombinant mouse APN or APN receptor agonist AdipoRon treatment normalized vascular growth. APN deficiency decreased retinal mitochondrial metabolic enzyme levels particularly in photoreceptors, suppressed retinal vascular development, and decreased photoreceptor platelet‐derived growth factor (Pdgfb). APN pathway activation reversed these effects. Blockade of mitochondrial respiration abolished AdipoRon‐induced Pdgfb increase in photoreceptors. Photoreceptor knockdown of Pdgfb delayed retinal vascular formation. Stimulation of the APN pathway might prevent hyperglycemia‐associated retinal abnormalities and suppress phase I ROP in premature infants.
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Affiliation(s)
- Zhongjie Fu
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Chatarina A Löfqvist
- Section for Ophthalmology, Department of Clinical Neuroscience and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
| | - Raffael Liegl
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Zhongxiao Wang
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Ye Sun
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Yan Gong
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Chi-Hsiu Liu
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Steven S Meng
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Samuel B Burnim
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Ivana Arellano
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | | | - Rubi Duran
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Alexander Poblete
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Steve S Cho
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - James D Akula
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Michael Kinter
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - David Ley
- Pediatrics, Department of Clinical Sciences, Skåne University Hospital and University of Lund, Lund, Sweden
| | - Ingrid Hansen Pupp
- Pediatrics, Department of Clinical Sciences, Skåne University Hospital and University of Lund, Lund, Sweden
| | | | - Ann Hellström
- Section for Ophthalmology, Department of Clinical Neuroscience and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
| | - Lois Eh Smith
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
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Chen X, Zhang J, Kim B, Jaitpal S, Meng SS, Adjepong K, Imamura S, Wake H, Nishibori M, Stopa EG, Stonestreet BS. High-mobility group box-1 translocation and release after hypoxic ischemic brain injury in neonatal rats. Exp Neurol 2018; 311:1-14. [PMID: 30217406 DOI: 10.1016/j.expneurol.2018.09.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 07/13/2018] [Accepted: 09/10/2018] [Indexed: 01/17/2023]
Abstract
Inflammation contributes to neonatal brain injury. Pro-inflammatory cytokines represent key inflammatory meditators in neonatal hypoxic-ischemic (HI) brain injury. The high mobility group box-1 (HMGB1) protein is a nuclear protein with pro-inflammatory cytokine properties when it is translocated from the nucleus and released extracellularly after stroke in adult rodents. We have previously shown that HMGB1 is translocated from the nucleus to cytosolic compartment after ischemic brain injury in fetal sheep. In the current study, we utilized the Rice-Vannucci model to investigate the time course of HMGB1 translocation and release after HI injury in neonatal rats. HMGB1 was located in cellular nuclei of brains from sham control rats. Nuclear to cytoplasmic translocation of HMGB1 was detected in the ipsilateral-HI hemisphere as early as zero h after HI, and released extracellularly as early as 6 h after HI. Immunohistochemical double staining detected HMGB1 translocation mainly in neurons along with release from apoptotic cells after HI. Serum HMGB1 increased at 3 h and decreased by 24 h after HI. In addition, rat brains exposed to hypoxic injury alone also exhibited time dependent HMGB1 translocation at 3, 12 and 48 h after hypoxia. Consequently, HMGB1 responds similarly after HI injury in the brains of neonatal and adult subjects. We conclude that HMGB1 is sensitive early indicator of neonatal HI and hypoxic brain injury.
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Affiliation(s)
- Xiaodi Chen
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, Providence, RI, USA
| | - Jiyong Zhang
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, Providence, RI, USA
| | - Boram Kim
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, Providence, RI, USA
| | - Siddhant Jaitpal
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, Providence, RI, USA
| | - Steven S Meng
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, Providence, RI, USA
| | - Kwame Adjepong
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, Providence, RI, USA
| | - Sayumi Imamura
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, Providence, RI, USA
| | - Hidenori Wake
- Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Masahiro Nishibori
- Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Edward G Stopa
- Department of Pathology and Neurosurgery, The Alpert Medical School of Brown University, Rhode Island Hospital, Providence, RI, USA
| | - Barbara S Stonestreet
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, The Alpert Medical School of Brown University, Providence, RI, USA.
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Meng SS, Lu ZH, Guo FM. [Advances of hepatocyte growth factor in treatment of acute respiratory distress syndrome]. Zhonghua Nei Ke Za Zhi 2018; 57:466-468. [PMID: 29925137 DOI: 10.3760/cma.j.issn.0578-1426.2018.06.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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5
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Fu Z, Wang Z, Liu CH, Gong Y, Cakir B, Liegl R, Sun Y, Meng SS, Burnim SB, Arellano I, Moran E, Duran R, Poblete A, Cho SS, Talukdar S, Akula JD, Hellström A, Smith LEH. Fibroblast Growth Factor 21 Protects Photoreceptor Function in Type 1 Diabetic Mice. Diabetes 2018; 67:974-985. [PMID: 29487115 PMCID: PMC5909994 DOI: 10.2337/db17-0830] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 02/07/2018] [Indexed: 12/20/2022]
Abstract
Retinal neuronal abnormalities occur before vascular changes in diabetic retinopathy. Accumulating experimental evidence suggests that neurons control vascular pathology in diabetic and other neovascular retinal diseases. Therefore, normalizing neuronal activity in diabetes may prevent vascular pathology. We investigated whether fibroblast growth factor 21 (FGF21) prevented retinal neuronal dysfunction in insulin-deficient diabetic mice. We found that in diabetic neural retina, photoreceptor rather than inner retinal function was most affected and administration of the long-acting FGF21 analog PF-05231023 restored the retinal neuronal functional deficits detected by electroretinography. PF-05231023 administration protected against diabetes-induced disorganization of photoreceptor segments seen in retinal cross section with immunohistochemistry and attenuated the reduction in the thickness of photoreceptor segments measured by optical coherence tomography. PF-05231023, independent of its downstream metabolic modulator adiponectin, reduced inflammatory marker interleukin-1β (IL-1β) mRNA levels. PF-05231023 activated the AKT-nuclear factor erythroid 2-related factor 2 pathway and reduced IL-1β expression in stressed photoreceptors. PF-05231023 administration did not change retinal expression of vascular endothelial growth factor A, suggesting a novel therapeutic approach for the prevention of early diabetic retinopathy by protecting photoreceptor function in diabetes.
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MESH Headings
- Animals
- Antibodies, Monoclonal, Humanized/pharmacology
- Diabetes Mellitus, Experimental/complications
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/pathology
- Diabetes Mellitus, Type 1/complications
- Diabetes Mellitus, Type 1/metabolism
- Diabetes Mellitus, Type 1/pathology
- Diabetic Retinopathy/etiology
- Diabetic Retinopathy/metabolism
- Diabetic Retinopathy/pathology
- Disease Models, Animal
- Electroretinography
- Fibroblast Growth Factors/pharmacology
- Interleukin-1beta/drug effects
- Interleukin-1beta/genetics
- Interleukin-1beta/metabolism
- Male
- Mice
- NF-E2-Related Factor 2/drug effects
- NF-E2-Related Factor 2/genetics
- NF-E2-Related Factor 2/metabolism
- Photoreceptor Cells, Vertebrate/drug effects
- Photoreceptor Cells, Vertebrate/metabolism
- Photoreceptor Cells, Vertebrate/pathology
- Proto-Oncogene Proteins c-akt/drug effects
- Proto-Oncogene Proteins c-akt/metabolism
- Retinal Neurons/drug effects
- Retinal Neurons/metabolism
- Retinal Neurons/pathology
- Tomography, Optical Coherence
- Vascular Endothelial Growth Factor A/drug effects
- Vascular Endothelial Growth Factor A/metabolism
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Affiliation(s)
- Zhongjie Fu
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA
| | - Zhongxiao Wang
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA
| | - Chi-Hsiu Liu
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA
| | - Yan Gong
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA
| | - Bertan Cakir
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA
| | - Raffael Liegl
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA
| | - Ye Sun
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA
| | - Steven S Meng
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA
| | - Samuel B Burnim
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA
| | - Ivana Arellano
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA
| | - Elizabeth Moran
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA
| | - Rubi Duran
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA
| | - Alexander Poblete
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA
| | - Steve S Cho
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA
| | | | - James D Akula
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA
| | - Ann Hellström
- Section for Ophthalmology, Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
| | - Lois E H Smith
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA
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Fu Z, Gong Y, Liegl R, Wang Z, Liu CH, Meng SS, Burnim SB, Saba NJ, Fredrick TW, Morss PC, Hellstrom A, Talukdar S, Smith LEH. FGF21 Administration Suppresses Retinal and Choroidal Neovascularization in Mice. Cell Rep 2017; 18:1606-1613. [PMID: 28199833 DOI: 10.1016/j.celrep.2017.01.014] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 12/02/2016] [Accepted: 01/09/2017] [Indexed: 01/30/2023] Open
Abstract
Pathological neovascularization, a leading cause of blindness, is seen in retinopathy of prematurity, diabetic retinopathy, and age-related macular degeneration. Using a mouse model of hypoxia-driven retinal neovascularization, we find that fibroblast growth factor 21 (FGF21) administration suppresses, and FGF21 deficiency worsens, retinal neovessel growth. The protective effect of FGF21 against neovessel growth was abolished in adiponectin (APN)-deficient mice. FGF21 administration also decreased neovascular lesions in two models of neovascular age-related macular degeneration: very-low-density lipoprotein-receptor-deficient mice with retinal angiomatous proliferation and laser-induced choroidal neovascularization. FGF21 inhibited tumor necrosis α (TNF-α) expression but did not alter Vegfa expression in neovascular eyes. These data suggest that FGF21 may be a therapeutic target for pathologic vessel growth in patients with neovascular eye diseases, including retinopathy of prematurity, diabetic retinopathy, and age-related macular degeneration.
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Affiliation(s)
- Zhongjie Fu
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Yan Gong
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Raffael Liegl
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Zhongxiao Wang
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Chi-Hsiu Liu
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Steven S Meng
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Samuel B Burnim
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Nicholas J Saba
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Thomas W Fredrick
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Peyton C Morss
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Ann Hellstrom
- Department of Ophthalmology, Sahlgrenska Academy at University of Gothenburg, 413 90 Gothenburg, Sweden
| | - Saswata Talukdar
- Cardiometabolic Diseases, Merck Research Laboratories, 33 Avenue Louis Pasteur, Boston, MA 02115, USA.
| | - Lois E H Smith
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA.
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Fu Z, Liegl R, Wang Z, Gong Y, Liu CH, Sun Y, Cakir B, Burnim SB, Meng SS, Löfqvist C, SanGiovanni JP, Hellström A, Smith LEH. Adiponectin Mediates Dietary Omega-3 Long-Chain Polyunsaturated Fatty Acid Protection Against Choroidal Neovascularization in Mice. Invest Ophthalmol Vis Sci 2017; 58:3862-3870. [PMID: 28763559 PMCID: PMC5539800 DOI: 10.1167/iovs.17-21796] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Purpose Neovascular age-related macular degeneration (AMD) is a major cause of legal blindness in the elderly. Diets with omega3-long-chain-polyunsaturated-fatty-acid (ω3-LCPUFA) correlate with a decreased risk of AMD. Dietary ω3-LCPUFA versus ω6-LCPUFA inhibits mouse ocular neovascularization, but the underlying mechanism needs further exploration. The aim of this study was to investigate if adiponectin (APN) mediated ω3-LCPUFA suppression of neovessels in AMD. Methods The mouse laser-induced choroidal neovascularization (CNV) model was used to mimic some of the inflammatory aspect of AMD. CNV was compared between wild-type (WT) and Apn−/− mice fed either otherwise matched diets with 2% ω3 or 2% ω6-LCPUFAs. Vldlr−/− mice were used to mimic some of the metabolic aspects of AMD. Choroid assay ex vivo and human retinal microvascular endothelial cell (HRMEC) proliferation assay in vitro was used to investigate the APN pathway in angiogenesis. Western blot for p-AMPKα/AMPKα and qPCR for Apn, Mmps, and IL-10 were used to define mechanism. Results ω3-LCPUFA intake suppressed laser-induced CNV in WT mice; suppression was abolished with APN deficiency. ω3-LCPUFA, mediated by APN, decreased mouse Mmps expression. APN deficiency decreased AMPKα phosphorylation in vivo and exacerbated choroid-sprouting ex vivo. APN pathway activation inhibited HRMEC proliferation and decreased Mmps. In Vldlr−/− mice, ω3-LCPUFA increased retinal AdipoR1 and inhibited NV. ω3-LCPUFA decreased IL-10 but did not affect Mmps in Vldlr−/− retinas. Conclusions APN in part mediated ω3-LCPUFA inhibition of neovascularization in two mouse models of AMD. Modulating the APN pathway in conjunction with a ω3-LCPUFA-enriched-diet may augment the beneficial effects of ω3-LCPUFA in AMD patients.
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Affiliation(s)
- Zhongjie Fu
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, United States
| | - Raffael Liegl
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, United States
| | - Zhongxiao Wang
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, United States
| | - Yan Gong
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, United States
| | - Chi-Hsiu Liu
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, United States
| | - Ye Sun
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, United States
| | - Bertan Cakir
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, United States
| | - Samuel B Burnim
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, United States
| | - Steven S Meng
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, United States
| | - Chatarina Löfqvist
- Department of Ophthalmology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - John Paul SanGiovanni
- National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, and Georgetown University School of Medicine, Washington, District of Columbia, United States
| | - Ann Hellström
- Department of Ophthalmology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Lois E H Smith
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, United States
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Sun Y, Liu CH, Wang Z, Meng SS, Burnim SB, SanGiovanni JP, Kamenecka TM, Solt LA, Chen J. RORα modulates semaphorin 3E transcription and neurovascular interaction in pathological retinal angiogenesis. FASEB J 2017. [PMID: 28646017 DOI: 10.1096/fj.201700172r] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Pathological proliferation of retinal blood vessels commonly causes vision impairment in proliferative retinopathies, including retinopathy of prematurity. Dysregulated crosstalk between the vasculature and retinal neurons is increasingly recognized as a major factor contributing to the pathogenesis of vascular diseases. Class 3 semaphorins (SEMA3s), a group of neuron-secreted axonal and vascular guidance factors, suppress pathological vascular growth in retinopathy. However, the upstream transcriptional regulators that mediate the function of SEMA3s in vascular growth are poorly understood. Here we showed that retinoic acid receptor-related orphan receptor α (RORα), a nuclear receptor and transcription factor, is a novel transcriptional regulator of SEMA3E-mediated neurovascular coupling in a mouse model of oxygen-induced proliferative retinopathy. We found that genetic deficiency of RORα substantially induced Sema3e expression in retinopathy. Both RORα and SEMA3E were expressed in retinal ganglion cells. RORα directly bound to a specific ROR response element on the promoter of Sema3e and negatively regulated Sema3e promoter-driven luciferase expression. Suppression of Sema3e using adeno-associated virus 2 carrying short hairpin RNA targeting Sema3e promoted disoriented pathological neovascularization and partially abolished the inhibitory vascular effects of RORα deficiency in retinopathy. Our findings suggest that RORα is a novel transcriptional regulator of SEMA3E-mediated neurovascular coupling in pathological retinal angiogenesis.-Sun, Y., Liu, C.-H., Wang, Z., Meng, S. S., Burnim, S. B., SanGiovanni, J. P., Kamenecka, T. M., Solt, L. A., Chen, J. RORα modulates semaphorin 3E transcription and neurovascular interaction in pathological retinal angiogenesis.
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Affiliation(s)
- Ye Sun
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Chi-Hsiu Liu
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Zhongxiao Wang
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Steven S Meng
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Samuel B Burnim
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, Boston, Massachusetts, USA
| | - John Paul SanGiovanni
- Section of Nutritional Neuroscience, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA.,Department of Biochemistry and Molecular and Cellular Biology, Georgetown School of Medicine, Washington, D.C., USA
| | - Theodore M Kamenecka
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida, USA
| | - Laura A Solt
- Department of Immunology and Microbiology, The Scripps Research Institute, Jupiter, Florida, USA
| | - Jing Chen
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, Boston, Massachusetts, USA;
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Sun Y, Lin Z, Liu CH, Gong Y, Liegl R, Fredrick TW, Meng SS, Burnim SB, Wang Z, Akula JD, Pu WT, Chen J, Smith LEH. Inflammatory signals from photoreceptor modulate pathological retinal angiogenesis via c-Fos. J Exp Med 2017; 214:1753-1767. [PMID: 28465464 PMCID: PMC5461000 DOI: 10.1084/jem.20161645] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 02/02/2017] [Accepted: 03/22/2017] [Indexed: 11/04/2022] Open
Abstract
Pathological neovessels growing into the normally avascular photoreceptors cause vision loss in many eye diseases, such as age-related macular degeneration and macular telangiectasia. Ocular neovascularization is strongly associated with inflammation, but the source of inflammatory signals and the mechanisms by which these signals regulate the disruption of avascular privilege in photoreceptors are unknown. In this study, we found that c-Fos, a master inflammatory regulator, was increased in photoreceptors in a model of pathological blood vessels invading photoreceptors: the very low-density lipoprotein receptor-deficient (Vldlr-/- ) mouse. Increased c-Fos induced inflammatory cytokines interleukin 6 (IL-6) and tumor necrosis factor (TNF), leading to activation of signal transducer and activator of transcription 3 (STAT3) and increased TNFα-induced protein 3 (TNFAIP3) in Vldlr-/- photoreceptors. IL-6 activated the STAT3/vascular endothelial growth factor A (VEGFA) pathway directly, and elevated TNFAIP3 suppressed SOCS3 (suppressor of cytokine signaling 3)-activated STAT3/VEGFA indirectly. Inhibition of c-Fos using photoreceptor-specific AAV (adeno-associated virus)-hRK (human rhodopsin kinase)-sh_c-fos or a chemical inhibitor substantially reduced the pathological neovascularization and rescued visual function in Vldlr-/- mice. These findings suggested that the photoreceptor c-Fos controls blood vessel growth into the normally avascular photoreceptor layer through the inflammatory signal-induced STAT3/VEGFA pathway.
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Affiliation(s)
- Ye Sun
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, Boston, MA 02115
| | - Zhiqiang Lin
- Department of Cardiology, Harvard Medical School, Boston Children's Hospital, Boston, MA 02115
| | - Chi-Hsiu Liu
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, Boston, MA 02115
| | - Yan Gong
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, Boston, MA 02115
| | - Raffael Liegl
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, Boston, MA 02115
| | - Thomas W Fredrick
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, Boston, MA 02115
| | - Steven S Meng
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, Boston, MA 02115
| | - Samuel B Burnim
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, Boston, MA 02115
| | - Zhongxiao Wang
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, Boston, MA 02115
| | - James D Akula
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, Boston, MA 02115
| | - William T Pu
- Department of Cardiology, Harvard Medical School, Boston Children's Hospital, Boston, MA 02115.,Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138
| | - Jing Chen
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, Boston, MA 02115
| | - Lois E H Smith
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, Boston, MA 02115
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Sun Y, Liegl R, Gong Y, Bühler A, Cakir B, Meng SS, Burnim SB, Liu CH, Reuer T, Zhang P, Walz JM, Ludwig F, Lange C, Agostini H, Böhringer D, Schlunck G, Smith LEH, Stahl A. Sema3f Protects Against Subretinal Neovascularization In Vivo. EBioMedicine 2017; 18:281-287. [PMID: 28373097 PMCID: PMC5405173 DOI: 10.1016/j.ebiom.2017.03.026] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 03/17/2017] [Accepted: 03/17/2017] [Indexed: 12/26/2022] Open
Abstract
Pathological neovascularization of the outer retina is the hallmark of neovascular age-related macular degeneration (nAMD). Building on our previous observations that semaphorin 3F (Sema3f) is expressed in the outer retina and demonstrates anti-angiogenic potential, we have investigated whether Sema3f can be used to protect against subretinal neovascularization in two mouse models. Both in the very low-density lipid-receptor knockout (Vldlr−/−) model of spontaneous subretinal neovascularization as well as in the mouse model of laser-induced choroidal neovascularization (CNV), we found protective effects of Sema3f against the formation of pathologic neovascularization. In the Vldlr−/− model, AAV-induced overexpression of Sema3f reduced the size of pathologic neovascularization by 56%. In the laser-induced CNV model, intravitreally injected Sema3f reduced pathologic neovascularization by 30%. Combined, these results provide the first evidence from two distinct in vivo models for a use of Sema3f in protecting the outer retina against subretinal neovascularization. Sema3f is expressed in the physiologically avascular layers of the outer retina. Vldlr−/− mice have reduced Sema3f and form spontaneous subretinal neovascularization. AAV-mediated increase of Sema3f protects against neovascularization in Vldlr−/− mice. Sema3f also reduces pathologic neovascularization in eyes with laser-induced CNV.
Abnormal formation of new blood vessels in the retina is one of the hallmarks of a potentially blinding eye disease called wet (or exudative) macular degeneration. Here we investigated in two independent mouse models whether Sema3f (a protein involved in guiding blood vessel growth) can be modulated to protect against abnormal blood vessel growth. In both mouse models, we found protective effects of Sema3f against abnormal blood vessel formation in the retina. Combined, these results provide the first evidence that Sema3f could be modulated to protect against wet macular degeneration.
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Affiliation(s)
- Ye Sun
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115, USA
| | - Raffael Liegl
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115, USA
| | - Yan Gong
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115, USA
| | - Anima Bühler
- Eye Center, Medical Center, Faculty of Medicine, University of Freiburg, Killianstrasse 5, 79106 Freiburg, Germany
| | - Bertan Cakir
- Eye Center, Medical Center, Faculty of Medicine, University of Freiburg, Killianstrasse 5, 79106 Freiburg, Germany
| | - Steven S Meng
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115, USA
| | - Samuel B Burnim
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115, USA
| | - Chi-Hsiu Liu
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115, USA
| | - Tristan Reuer
- Eye Center, Medical Center, Faculty of Medicine, University of Freiburg, Killianstrasse 5, 79106 Freiburg, Germany
| | - Peipei Zhang
- Eye Center, Medical Center, Faculty of Medicine, University of Freiburg, Killianstrasse 5, 79106 Freiburg, Germany
| | - Johanna M Walz
- Eye Center, Medical Center, Faculty of Medicine, University of Freiburg, Killianstrasse 5, 79106 Freiburg, Germany
| | - Franziska Ludwig
- Eye Center, Medical Center, Faculty of Medicine, University of Freiburg, Killianstrasse 5, 79106 Freiburg, Germany
| | - Clemens Lange
- Eye Center, Medical Center, Faculty of Medicine, University of Freiburg, Killianstrasse 5, 79106 Freiburg, Germany
| | - Hansjürgen Agostini
- Eye Center, Medical Center, Faculty of Medicine, University of Freiburg, Killianstrasse 5, 79106 Freiburg, Germany
| | - Daniel Böhringer
- Eye Center, Medical Center, Faculty of Medicine, University of Freiburg, Killianstrasse 5, 79106 Freiburg, Germany
| | - Günther Schlunck
- Eye Center, Medical Center, Faculty of Medicine, University of Freiburg, Killianstrasse 5, 79106 Freiburg, Germany
| | - Lois E H Smith
- Department of Ophthalmology, Harvard Medical School, Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115, USA
| | - Andreas Stahl
- Eye Center, Medical Center, Faculty of Medicine, University of Freiburg, Killianstrasse 5, 79106 Freiburg, Germany.
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11
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Fu Z, Meng SS, Burnim SB, Smith LE, Lo AC. Lutein facilitates physiological revascularization in a mouse model of retinopathy of prematurity. Clin Exp Ophthalmol 2017; 45:529-538. [PMID: 28002872 DOI: 10.1111/ceo.12908] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 12/02/2016] [Accepted: 12/16/2016] [Indexed: 11/28/2022]
Abstract
BACKGROUND Retinopathy of prematurity is one of the leading causes of childhood blindness worldwide, with vessel growth cessation and vessel loss in phase I followed by neovascularization in phase II. Ischaemia contributes to its pathogenesis, and lutein protects against ischaemia-induced retinal damages. We aimed to investigate the effects of lutein on a murine model of oxygen-induced retinopathy. METHODS Mouse pups were exposed to 75% oxygen for 5 days and returned to room air for another 5 days. Vascular obliteration, neovascularization and blood vessel leakage were examined. Immunohistochemistry for glial cells and microglia were performed. RESULTS Compared with vehicle controls, mouse pups receiving lutein treatment displayed smaller central vaso-obliterated area and reduced blood vessel leakage. No significant difference in neovascular area was found between lutein and vehicle controls. Lutein promoted endothelial tip cell formation and maintained the astrocytic template in the avascular area in oxygen-induced retinopathy. No significant changes in Müller cell gliosis and microglial activation in the central avascular area were found in lutein-treated pups. CONCLUSIONS Our observations indicated that lutein significantly promoted normal retinal vascular regrowth in the central avascular area, possibly through promoting endothelial tip cell formation and preserving astrocytic template. Our results indicated that lutein might be considered as a supplement for the treatment of proliferative retinopathy of prematurity because of its role in facilitating the revascularization of normal vasculature.
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Affiliation(s)
- Zhongjie Fu
- Department of Ophthalmology, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong.,Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Steven S Meng
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Samuel B Burnim
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Lois Eh Smith
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Amy Cy Lo
- Department of Ophthalmology, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong.,Research Center of Heart, Brain, Hormone and Healthy Aging, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong
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12
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Gong Y, Shao Z, Fu Z, Edin ML, Sun Y, Liegl RG, Wang Z, Liu CH, Burnim SB, Meng SS, Lih FB, SanGiovanni JP, Zeldin DC, Hellström A, Smith LEH. Fenofibrate Inhibits Cytochrome P450 Epoxygenase 2C Activity to Suppress Pathological Ocular Angiogenesis. EBioMedicine 2016; 13:201-211. [PMID: 27720395 PMCID: PMC5264653 DOI: 10.1016/j.ebiom.2016.09.025] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 09/23/2016] [Accepted: 09/28/2016] [Indexed: 12/19/2022] Open
Abstract
Neovascular eye diseases including retinopathy of prematurity, diabetic retinopathy and age-related-macular-degeneration are major causes of blindness. Fenofibrate treatment in type 2 diabetes patients reduces progression of diabetic retinopathy independent of its peroxisome proliferator-activated receptor (PPAR)α agonist lipid lowering effect. The mechanism is unknown. Fenofibrate binds to and inhibits cytochrome P450 epoxygenase (CYP)2C with higher affinity than to PPARα. CYP2C metabolizes ω-3 long-chain polyunsaturated fatty acids (LCPUFAs). While ω-3 LCPUFA products from other metabolizing pathways decrease retinal and choroidal neovascularization, CYP2C products of both ω-3 and ω-6 LCPUFAs promote angiogenesis. We hypothesized that fenofibrate inhibits retinopathy by reducing CYP2C ω-3 LCPUFA (and ω-6 LCPUFA) pro-angiogenic metabolites. Fenofibrate reduced retinal and choroidal neovascularization in PPARα-/-mice and augmented ω-3 LCPUFA protection via CYP2C inhibition. Fenofibrate suppressed retinal and choroidal neovascularization in mice overexpressing human CYP2C8 in endothelial cells and reduced plasma levels of the pro-angiogenic ω-3 LCPUFA CYP2C8 product, 19,20-epoxydocosapentaenoic acid. 19,20-epoxydocosapentaenoic acid reversed fenofibrate-induced suppression of angiogenesis ex vivo and suppression of endothelial cell functions in vitro. In summary fenofibrate suppressed retinal and choroidal neovascularization via CYP2C inhibition as well as by acting as an agonist of PPARα. Fenofibrate augmented the overall protective effects of ω-3 LCPUFAs on neovascular eye diseases. Fenofibrate inhibits retinal and choroidal neovascularization by inhibiting CYP2C activity as well as by activating PPARα. Fenofibrate augments the protective effects of ω-3 LCPUFAs on pathological ocular angiogenesis. Inhibition of CYP2C is a potential therapeutic approach for treatment of proliferative retinopathy and neovascular AMD.
Findings from clinical trials indicate that fenofibrate reduces the progression of proliferative diabetic retinopathy, but the mechanism of this effect is currently unknown. Dietary intake of ω-3 long-chain polyunsaturated fatty acids (LCPUFAs) is generally associated with a suppression of proliferative retinopathy and age-related macular degeneration acting through LCPUFA cyclooxygenase and lipoxygenase metabolites. However, cytochrome P450 epoxygenase (CYP)2C ω-3 and ω-6 LCPUFA metabolites promote retinopathy. Fenofibrate is a potent inhibitor of CYP2C. Our findings suggested that fenofibrate suppressed retinal and choroidal neovascularization via CYP2C inhibition. Combination therapy of dietary ω-3 LCPUFA supplementation with fenofibrate may be a promising approach to prevent incidence or progression of neovascular eye diseases.
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Affiliation(s)
- Yan Gong
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 01248, United States
| | - Zhuo Shao
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 01248, United States
| | - Zhongjie Fu
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 01248, United States
| | - Matthew L Edin
- Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709, United States
| | - Ye Sun
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 01248, United States
| | - Raffael G Liegl
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 01248, United States
| | - Zhongxiao Wang
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 01248, United States
| | - Chi-Hsiu Liu
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 01248, United States
| | - Samuel B Burnim
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 01248, United States
| | - Steven S Meng
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 01248, United States
| | - Fred B Lih
- Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709, United States
| | - John Paul SanGiovanni
- Section on Nutritional Neurosciences, Laboratory of Membrane Biophysics and Biochemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, United States
| | - Darryl C Zeldin
- Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709, United States
| | - Ann Hellström
- Department of Ophthalmology, Sahlgrenska Academy at University of Gothenburg, Gothenburg 40530, Sweden
| | - Lois E H Smith
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 01248, United States.
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13
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Gong Y, Fu Z, Edin ML, Liu CH, Wang Z, Shao Z, Fredrick TW, Saba NJ, Morss PC, Burnim SB, Meng SS, Lih FB, Lee KSS, Moran EP, SanGiovanni JP, Hellström A, Hammock BD, Zeldin DC, Smith LEH. Cytochrome P450 Oxidase 2C Inhibition Adds to ω-3 Long-Chain Polyunsaturated Fatty Acids Protection Against Retinal and Choroidal Neovascularization. Arterioscler Thromb Vasc Biol 2016; 36:1919-27. [PMID: 27417579 DOI: 10.1161/atvbaha.116.307558] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 06/27/2016] [Indexed: 12/24/2022]
Abstract
OBJECTIVE Pathological ocular neovascularization is a major cause of blindness. Increased dietary intake of ω-3 long-chain polyunsaturated fatty acids (LCPUFA) reduces retinal neovascularization and choroidal neovascularization (CNV), but ω-3 LCPUFA metabolites of a major metabolizing pathway, cytochrome P450 oxidase (CYP) 2C, promote ocular pathological angiogenesis. We hypothesized that inhibition of CYP2C activity will add to the protective effects of ω-3 LCPUFA on neovascular eye diseases. APPROACH AND RESULTS The mouse models of oxygen-induced retinopathy and laser-induced CNV were used to investigate pathological angiogenesis in the retina and choroid, respectively. The plasma levels of ω-3 LCPUFA metabolites of CYP2C were determined by mass spectroscopy. Aortic ring and choroidal explant sprouting assays were used to investigate the effects of CYP2C inhibition and ω-3 LCPUFA-derived CYP2C metabolic products on angiogenesis ex vivo. We found that inhibition of CYP2C activity by montelukast added to the protective effects of ω-3 LCPUFA on retinal neovascularization and CNV by 30% and 20%, respectively. In CYP2C8-overexpressing mice fed a ω-3 LCPUFA diet, montelukast suppressed retinal neovascularization and CNV by 36% and 39% and reduced the plasma levels of CYP2C8 products. Soluble epoxide hydrolase inhibition, which blocks breakdown and inactivation of CYP2C ω-3 LCPUFA-derived active metabolites, increased oxygen-induced retinopathy and CNV in vivo. Exposure to selected ω-3 LCPUFA metabolites of CYP2C significantly reversed the suppression of both angiogenesis ex vivo and endothelial cell functions in vitro by the CYP2C inhibitor montelukast. CONCLUSIONS Inhibition of CYP2C activity adds to the protective effects of ω-3 LCPUFA on pathological retinal neovascularization and CNV.
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Affiliation(s)
- Yan Gong
- From the Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, MA (Y.G., Z.F., C.-H.L., Z.W., Z.S., T.W.F., N.J.S., P.C.M., S.B.B., S.S.M., E.P.M., L.E.H.S.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (M.L.E., F.B.L., D.C.Z.); Department of Entomology and Comprehensive Cancer Center, University of California, Davis (K.S.S.L., B.D.H.); Section on Nutritional Neurosciences in the Laboratory of Membrane Biophysics and Biochemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD (J.P.S.G.); and Department of Ophthalmology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden (A.H.)
| | - Zhongjie Fu
- From the Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, MA (Y.G., Z.F., C.-H.L., Z.W., Z.S., T.W.F., N.J.S., P.C.M., S.B.B., S.S.M., E.P.M., L.E.H.S.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (M.L.E., F.B.L., D.C.Z.); Department of Entomology and Comprehensive Cancer Center, University of California, Davis (K.S.S.L., B.D.H.); Section on Nutritional Neurosciences in the Laboratory of Membrane Biophysics and Biochemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD (J.P.S.G.); and Department of Ophthalmology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden (A.H.)
| | - Matthew L Edin
- From the Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, MA (Y.G., Z.F., C.-H.L., Z.W., Z.S., T.W.F., N.J.S., P.C.M., S.B.B., S.S.M., E.P.M., L.E.H.S.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (M.L.E., F.B.L., D.C.Z.); Department of Entomology and Comprehensive Cancer Center, University of California, Davis (K.S.S.L., B.D.H.); Section on Nutritional Neurosciences in the Laboratory of Membrane Biophysics and Biochemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD (J.P.S.G.); and Department of Ophthalmology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden (A.H.)
| | - Chi-Hsiu Liu
- From the Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, MA (Y.G., Z.F., C.-H.L., Z.W., Z.S., T.W.F., N.J.S., P.C.M., S.B.B., S.S.M., E.P.M., L.E.H.S.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (M.L.E., F.B.L., D.C.Z.); Department of Entomology and Comprehensive Cancer Center, University of California, Davis (K.S.S.L., B.D.H.); Section on Nutritional Neurosciences in the Laboratory of Membrane Biophysics and Biochemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD (J.P.S.G.); and Department of Ophthalmology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden (A.H.)
| | - Zhongxiao Wang
- From the Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, MA (Y.G., Z.F., C.-H.L., Z.W., Z.S., T.W.F., N.J.S., P.C.M., S.B.B., S.S.M., E.P.M., L.E.H.S.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (M.L.E., F.B.L., D.C.Z.); Department of Entomology and Comprehensive Cancer Center, University of California, Davis (K.S.S.L., B.D.H.); Section on Nutritional Neurosciences in the Laboratory of Membrane Biophysics and Biochemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD (J.P.S.G.); and Department of Ophthalmology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden (A.H.)
| | - Zhuo Shao
- From the Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, MA (Y.G., Z.F., C.-H.L., Z.W., Z.S., T.W.F., N.J.S., P.C.M., S.B.B., S.S.M., E.P.M., L.E.H.S.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (M.L.E., F.B.L., D.C.Z.); Department of Entomology and Comprehensive Cancer Center, University of California, Davis (K.S.S.L., B.D.H.); Section on Nutritional Neurosciences in the Laboratory of Membrane Biophysics and Biochemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD (J.P.S.G.); and Department of Ophthalmology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden (A.H.)
| | - Thomas W Fredrick
- From the Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, MA (Y.G., Z.F., C.-H.L., Z.W., Z.S., T.W.F., N.J.S., P.C.M., S.B.B., S.S.M., E.P.M., L.E.H.S.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (M.L.E., F.B.L., D.C.Z.); Department of Entomology and Comprehensive Cancer Center, University of California, Davis (K.S.S.L., B.D.H.); Section on Nutritional Neurosciences in the Laboratory of Membrane Biophysics and Biochemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD (J.P.S.G.); and Department of Ophthalmology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden (A.H.)
| | - Nicholas J Saba
- From the Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, MA (Y.G., Z.F., C.-H.L., Z.W., Z.S., T.W.F., N.J.S., P.C.M., S.B.B., S.S.M., E.P.M., L.E.H.S.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (M.L.E., F.B.L., D.C.Z.); Department of Entomology and Comprehensive Cancer Center, University of California, Davis (K.S.S.L., B.D.H.); Section on Nutritional Neurosciences in the Laboratory of Membrane Biophysics and Biochemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD (J.P.S.G.); and Department of Ophthalmology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden (A.H.)
| | - Peyton C Morss
- From the Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, MA (Y.G., Z.F., C.-H.L., Z.W., Z.S., T.W.F., N.J.S., P.C.M., S.B.B., S.S.M., E.P.M., L.E.H.S.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (M.L.E., F.B.L., D.C.Z.); Department of Entomology and Comprehensive Cancer Center, University of California, Davis (K.S.S.L., B.D.H.); Section on Nutritional Neurosciences in the Laboratory of Membrane Biophysics and Biochemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD (J.P.S.G.); and Department of Ophthalmology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden (A.H.)
| | - Samuel B Burnim
- From the Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, MA (Y.G., Z.F., C.-H.L., Z.W., Z.S., T.W.F., N.J.S., P.C.M., S.B.B., S.S.M., E.P.M., L.E.H.S.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (M.L.E., F.B.L., D.C.Z.); Department of Entomology and Comprehensive Cancer Center, University of California, Davis (K.S.S.L., B.D.H.); Section on Nutritional Neurosciences in the Laboratory of Membrane Biophysics and Biochemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD (J.P.S.G.); and Department of Ophthalmology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden (A.H.)
| | - Steven S Meng
- From the Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, MA (Y.G., Z.F., C.-H.L., Z.W., Z.S., T.W.F., N.J.S., P.C.M., S.B.B., S.S.M., E.P.M., L.E.H.S.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (M.L.E., F.B.L., D.C.Z.); Department of Entomology and Comprehensive Cancer Center, University of California, Davis (K.S.S.L., B.D.H.); Section on Nutritional Neurosciences in the Laboratory of Membrane Biophysics and Biochemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD (J.P.S.G.); and Department of Ophthalmology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden (A.H.)
| | - Fred B Lih
- From the Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, MA (Y.G., Z.F., C.-H.L., Z.W., Z.S., T.W.F., N.J.S., P.C.M., S.B.B., S.S.M., E.P.M., L.E.H.S.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (M.L.E., F.B.L., D.C.Z.); Department of Entomology and Comprehensive Cancer Center, University of California, Davis (K.S.S.L., B.D.H.); Section on Nutritional Neurosciences in the Laboratory of Membrane Biophysics and Biochemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD (J.P.S.G.); and Department of Ophthalmology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden (A.H.)
| | - Kin Sing Stephen Lee
- From the Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, MA (Y.G., Z.F., C.-H.L., Z.W., Z.S., T.W.F., N.J.S., P.C.M., S.B.B., S.S.M., E.P.M., L.E.H.S.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (M.L.E., F.B.L., D.C.Z.); Department of Entomology and Comprehensive Cancer Center, University of California, Davis (K.S.S.L., B.D.H.); Section on Nutritional Neurosciences in the Laboratory of Membrane Biophysics and Biochemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD (J.P.S.G.); and Department of Ophthalmology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden (A.H.)
| | - Elizabeth P Moran
- From the Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, MA (Y.G., Z.F., C.-H.L., Z.W., Z.S., T.W.F., N.J.S., P.C.M., S.B.B., S.S.M., E.P.M., L.E.H.S.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (M.L.E., F.B.L., D.C.Z.); Department of Entomology and Comprehensive Cancer Center, University of California, Davis (K.S.S.L., B.D.H.); Section on Nutritional Neurosciences in the Laboratory of Membrane Biophysics and Biochemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD (J.P.S.G.); and Department of Ophthalmology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden (A.H.)
| | - John Paul SanGiovanni
- From the Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, MA (Y.G., Z.F., C.-H.L., Z.W., Z.S., T.W.F., N.J.S., P.C.M., S.B.B., S.S.M., E.P.M., L.E.H.S.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (M.L.E., F.B.L., D.C.Z.); Department of Entomology and Comprehensive Cancer Center, University of California, Davis (K.S.S.L., B.D.H.); Section on Nutritional Neurosciences in the Laboratory of Membrane Biophysics and Biochemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD (J.P.S.G.); and Department of Ophthalmology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden (A.H.)
| | - Ann Hellström
- From the Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, MA (Y.G., Z.F., C.-H.L., Z.W., Z.S., T.W.F., N.J.S., P.C.M., S.B.B., S.S.M., E.P.M., L.E.H.S.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (M.L.E., F.B.L., D.C.Z.); Department of Entomology and Comprehensive Cancer Center, University of California, Davis (K.S.S.L., B.D.H.); Section on Nutritional Neurosciences in the Laboratory of Membrane Biophysics and Biochemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD (J.P.S.G.); and Department of Ophthalmology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden (A.H.)
| | - Bruce D Hammock
- From the Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, MA (Y.G., Z.F., C.-H.L., Z.W., Z.S., T.W.F., N.J.S., P.C.M., S.B.B., S.S.M., E.P.M., L.E.H.S.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (M.L.E., F.B.L., D.C.Z.); Department of Entomology and Comprehensive Cancer Center, University of California, Davis (K.S.S.L., B.D.H.); Section on Nutritional Neurosciences in the Laboratory of Membrane Biophysics and Biochemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD (J.P.S.G.); and Department of Ophthalmology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden (A.H.)
| | - Darryl C Zeldin
- From the Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, MA (Y.G., Z.F., C.-H.L., Z.W., Z.S., T.W.F., N.J.S., P.C.M., S.B.B., S.S.M., E.P.M., L.E.H.S.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (M.L.E., F.B.L., D.C.Z.); Department of Entomology and Comprehensive Cancer Center, University of California, Davis (K.S.S.L., B.D.H.); Section on Nutritional Neurosciences in the Laboratory of Membrane Biophysics and Biochemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD (J.P.S.G.); and Department of Ophthalmology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden (A.H.)
| | - Lois E H Smith
- From the Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, MA (Y.G., Z.F., C.-H.L., Z.W., Z.S., T.W.F., N.J.S., P.C.M., S.B.B., S.S.M., E.P.M., L.E.H.S.); Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC (M.L.E., F.B.L., D.C.Z.); Department of Entomology and Comprehensive Cancer Center, University of California, Davis (K.S.S.L., B.D.H.); Section on Nutritional Neurosciences in the Laboratory of Membrane Biophysics and Biochemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD (J.P.S.G.); and Department of Ophthalmology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden (A.H.).
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14
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Li JR, Huang YW, Meng SS, Liang XY, Xie RH, Yu L. Cloning and Phylogenetic Analysis of Interleukin-2 Gene in Xiaoshan Chicken, A Chinese Local Chicken Breed. Sheng Wu Hua Xue Yu Sheng Wu Wu Li Xue Bao (Shanghai) 2002; 33:713-718. [PMID: 12035068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Chicken interleukin 2 (cIL-2) is one of important nonmammalian cytokines isolated recently. In this paper, optimum condition for production of chicken IL-2 in vitro was developed. Isolation of spleen lymphocytes from Xiaoshan chicken, activation by ConA, followed by RT-PCR in a single step, resulted in the synthesis of chicken IL-2 cDNA. The full-length chicken IL-2 cDNA was 737 bp, encoding a 143 amino acids precursor. Only 1--5 amino acid difference were found compared with other three published chicken IL-2s. This IL-2 shared 69.4% homology with turkey IL-2 and shared 21.2%--9.4% homology with mammalian IL-2. The predicted protein had a leader sequence composed of 22 amino acids, and four conversed cysteines allowing the formation of two intrachain disulfide bonds. There were four regions of heptad repeats, with hydrophobic amino acids at positions 1 and 4, were presumably forming amphipathic alpha-helices. These regions were equivalent to mammalian helices A, B, C and D. The amino acids at positions 40(D), 65(Y), 82(E), 108(N) and 142(Q) might play roles in binding to receptors of chicken IL-2. Phylogenetic tree analysis indicated that the chicken IL-2 may have evolutionary relationship with mammalian IL-2 they showed however species difference in function because of selective pressure of immune systems.
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Affiliation(s)
- J R Li
- Institute of Preventive Veterinary Medicine, Zhejiang University, Hangzhou 310039, China.
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15
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Yu L, Li JR, Huang YW, Liang XY, Meng SS. [Enhanced immunogenicity of plasmid encoding polyprotein gene of infectious bursal disease virus by co-administration of chicken interleukin 2 (IL-2)]. Sheng Wu Gong Cheng Xue Bao 2001; 17:652-7. [PMID: 11910759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Chicken interleukin 2 (IL-2) is one of important nonmammalian cytokines isolated recently. The influencing of IL-2 on immunogenicity of DNA vaccine was examined using infectious bursal disease virus as a model. The IL-2 cDNA of Xiaoshan chicken and the polyprotein gene of IBDV-ZJ2000 were amplified by RT-PCR, cloned, sequenced and inserted into the control of CMV promoter and enhancer of pCI vector. 14-day-old chickens were vaccinated intramuscularly with DNA vaccine, two weeks later, they were boosted with DNA, and two weeks post boost, they were challenged with virulent IBDV. The results showed that protective responses and neutralization antibody responses of DNA vaccine co-administrated with chicken IL-2 were much higher than those of injected with DNA vaccine alone. Furthermore, the T lymphocyte proliferation response of peripheral blood, thymus and spleen, and the B lymphocyte proliferation response of bursa induced by DNA vaccine can be significantly enhanced by chicken IL-2. These results obviously indicated that chicken IL-2 was a strong adjuvant which can significantly enhance the immunogenicity of IBDV DNA vaccine.
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Affiliation(s)
- L Yu
- Institute of Preventive Veterinary Medcine, Zhejiang University, Hangzhou 310029, China.
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