Antiangiogenesis Effects of Endostatin in Retinal Neovascularization
Pathological retinal angiogenesis is a major cause of vision loss. Endostatin is a natural antiangiogenesis antitumor protein that is widely used in cancer studies. In this study, we investigated the efficacy and potential mechanisms of endostatin for the prevention of retinal neovascularization bot...
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| Veröffentlicht in: | Journal of ocular pharmacology and therapeutics 2013-09, Vol.29 (7), p.619-626 |
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| creator | BAI, Yu-Jing HUANG, Lv-Zhen ZHOU, Ai-Yi MIN ZHAO YU, Wen-Zhen LI, Xiao-Xin |
| description | Pathological retinal angiogenesis is a major cause of vision loss. Endostatin is a natural antiangiogenesis antitumor protein that is widely used in cancer studies. In this study, we investigated the efficacy and potential mechanisms of endostatin for the prevention of retinal neovascularization both in vitro and in vivo.
Human umbilical vein endothelial cells (HUVECs) were used for the in vitro studies. HUVECs were incubated with endostatin or the vascular endothelial growth factor (VEGF) and endostatin for different time points. Cell proliferation, migration, cell cycling, and tube formation studies were carried out using a Cell Counting Kit-8 assay, a Transwell assay, flow cytometry, and a Matrigel assay, respectively. Enzyme-Linked Immunosorbent Assay (ELISA) was used to study VEGF and pigment epithelial-derived factor (PEDF) protein secretion from the HUVECs at different time points. A murine oxygen-induced retinopathy (OIR) model was used for the in vivo studies. Seven-day-old C57BL/6J pups (p7) were exposed to 75% oxygen for 5 days. On p12, the animals were returned to a normal atmosphere and were immediately injected intravitreously with 1.5 μL of a 5 mg/mL endostatin solution. At p18, the mice were perfused with fluorescein-dextran-FITC, and their retinas were flat mounted to measure the nonperfused area. Retinal VEGF and PEDF levels were also measured by ELISA Kits in the OIR mice at p18.
In vitro, endostatin inhibited HUVEC proliferation in a dose-dependent manner and also inhibited HUVEC proliferation in a VEGF-containing medium. Additionally, endostatin can inhibit migration, tube formation, and VEGF secretion in HUVECs, while also inducing apoptosis in HUVECs at several time points. These effects were statistically significant when compared to the control group (P |
| doi_str_mv | 10.1089/jop.2012.0225 |
| format | Article |
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Human umbilical vein endothelial cells (HUVECs) were used for the in vitro studies. HUVECs were incubated with endostatin or the vascular endothelial growth factor (VEGF) and endostatin for different time points. Cell proliferation, migration, cell cycling, and tube formation studies were carried out using a Cell Counting Kit-8 assay, a Transwell assay, flow cytometry, and a Matrigel assay, respectively. Enzyme-Linked Immunosorbent Assay (ELISA) was used to study VEGF and pigment epithelial-derived factor (PEDF) protein secretion from the HUVECs at different time points. A murine oxygen-induced retinopathy (OIR) model was used for the in vivo studies. Seven-day-old C57BL/6J pups (p7) were exposed to 75% oxygen for 5 days. On p12, the animals were returned to a normal atmosphere and were immediately injected intravitreously with 1.5 μL of a 5 mg/mL endostatin solution. At p18, the mice were perfused with fluorescein-dextran-FITC, and their retinas were flat mounted to measure the nonperfused area. Retinal VEGF and PEDF levels were also measured by ELISA Kits in the OIR mice at p18.
In vitro, endostatin inhibited HUVEC proliferation in a dose-dependent manner and also inhibited HUVEC proliferation in a VEGF-containing medium. Additionally, endostatin can inhibit migration, tube formation, and VEGF secretion in HUVECs, while also inducing apoptosis in HUVECs at several time points. These effects were statistically significant when compared to the control group (P<0.05). In vivo, a single intravitreous injection of endostatin reduced the retinal nonperfused area from 30% in the control group to 23% in the treatment group (P<0.0001). Intravitrous injection of endostatin reduced VEGF levels in retinas, while it increased PEDF levels.
Endostatin showed convincing inhibitory effects on angiogenesis both in vitro and in vivo. The inhibitory effects may be, at least partly, resulted from the restoration of the PEDF/VEGF ratio. These data suggest that endostatin could offer an innovative pharmaceutical strategy for the prevention of retinal neovascularization.</description><identifier>ISSN: 1080-7683</identifier><identifier>EISSN: 1557-7732</identifier><identifier>DOI: 10.1089/jop.2012.0225</identifier><identifier>PMID: 23545016</identifier><language>eng</language><publisher>Larchmont, NY: Liebert</publisher><subject>Angiogenesis Inhibitors - pharmacology ; Animals ; Animals, Newborn ; Apoptosis - drug effects ; Biological and medical sciences ; Blotting, Western ; Cell Movement - drug effects ; Cell Proliferation - drug effects ; Dextrans ; Disease Models, Animal ; Endostatins - pharmacology ; Enzyme-Linked Immunosorbent Assay ; Eye Proteins - metabolism ; Female ; Flow Cytometry ; Fluoresceins ; Human Umbilical Vein Endothelial Cells - drug effects ; Humans ; Medical sciences ; Mice ; Mice, Inbred C57BL ; Nerve Growth Factors - metabolism ; Ophthalmology ; Oxygen - toxicity ; Pharmacology. Drug treatments ; Retinal Neovascularization - drug therapy ; Retinal Neovascularization - metabolism ; Retinal Neovascularization - pathology ; Retinopathies ; Retinopathy of Prematurity - drug therapy ; Retinopathy of Prematurity - etiology ; Retinopathy of Prematurity - pathology ; Serpins - metabolism ; Vascular Endothelial Growth Factor A - metabolism</subject><ispartof>Journal of ocular pharmacology and therapeutics, 2013-09, Vol.29 (7), p.619-626</ispartof><rights>2014 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c323t-fddfbbcff492baad539830e88a28ffa1e814a13503645d37f0fa9c228fd57fe13</citedby><cites>FETCH-LOGICAL-c323t-fddfbbcff492baad539830e88a28ffa1e814a13503645d37f0fa9c228fd57fe13</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27923,27924</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=27720250$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/23545016$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>BAI, Yu-Jing</creatorcontrib><creatorcontrib>HUANG, Lv-Zhen</creatorcontrib><creatorcontrib>ZHOU, Ai-Yi</creatorcontrib><creatorcontrib>MIN ZHAO</creatorcontrib><creatorcontrib>YU, Wen-Zhen</creatorcontrib><creatorcontrib>LI, Xiao-Xin</creatorcontrib><title>Antiangiogenesis Effects of Endostatin in Retinal Neovascularization</title><title>Journal of ocular pharmacology and therapeutics</title><addtitle>J Ocul Pharmacol Ther</addtitle><description>Pathological retinal angiogenesis is a major cause of vision loss. Endostatin is a natural antiangiogenesis antitumor protein that is widely used in cancer studies. In this study, we investigated the efficacy and potential mechanisms of endostatin for the prevention of retinal neovascularization both in vitro and in vivo.
Human umbilical vein endothelial cells (HUVECs) were used for the in vitro studies. HUVECs were incubated with endostatin or the vascular endothelial growth factor (VEGF) and endostatin for different time points. Cell proliferation, migration, cell cycling, and tube formation studies were carried out using a Cell Counting Kit-8 assay, a Transwell assay, flow cytometry, and a Matrigel assay, respectively. Enzyme-Linked Immunosorbent Assay (ELISA) was used to study VEGF and pigment epithelial-derived factor (PEDF) protein secretion from the HUVECs at different time points. A murine oxygen-induced retinopathy (OIR) model was used for the in vivo studies. Seven-day-old C57BL/6J pups (p7) were exposed to 75% oxygen for 5 days. On p12, the animals were returned to a normal atmosphere and were immediately injected intravitreously with 1.5 μL of a 5 mg/mL endostatin solution. At p18, the mice were perfused with fluorescein-dextran-FITC, and their retinas were flat mounted to measure the nonperfused area. Retinal VEGF and PEDF levels were also measured by ELISA Kits in the OIR mice at p18.
In vitro, endostatin inhibited HUVEC proliferation in a dose-dependent manner and also inhibited HUVEC proliferation in a VEGF-containing medium. Additionally, endostatin can inhibit migration, tube formation, and VEGF secretion in HUVECs, while also inducing apoptosis in HUVECs at several time points. These effects were statistically significant when compared to the control group (P<0.05). In vivo, a single intravitreous injection of endostatin reduced the retinal nonperfused area from 30% in the control group to 23% in the treatment group (P<0.0001). Intravitrous injection of endostatin reduced VEGF levels in retinas, while it increased PEDF levels.
Endostatin showed convincing inhibitory effects on angiogenesis both in vitro and in vivo. The inhibitory effects may be, at least partly, resulted from the restoration of the PEDF/VEGF ratio. These data suggest that endostatin could offer an innovative pharmaceutical strategy for the prevention of retinal neovascularization.</description><subject>Angiogenesis Inhibitors - pharmacology</subject><subject>Animals</subject><subject>Animals, Newborn</subject><subject>Apoptosis - drug effects</subject><subject>Biological and medical sciences</subject><subject>Blotting, Western</subject><subject>Cell Movement - drug effects</subject><subject>Cell Proliferation - drug effects</subject><subject>Dextrans</subject><subject>Disease Models, Animal</subject><subject>Endostatins - pharmacology</subject><subject>Enzyme-Linked Immunosorbent Assay</subject><subject>Eye Proteins - metabolism</subject><subject>Female</subject><subject>Flow Cytometry</subject><subject>Fluoresceins</subject><subject>Human Umbilical Vein Endothelial Cells - drug effects</subject><subject>Humans</subject><subject>Medical sciences</subject><subject>Mice</subject><subject>Mice, Inbred C57BL</subject><subject>Nerve Growth Factors - metabolism</subject><subject>Ophthalmology</subject><subject>Oxygen - toxicity</subject><subject>Pharmacology. Drug treatments</subject><subject>Retinal Neovascularization - drug therapy</subject><subject>Retinal Neovascularization - metabolism</subject><subject>Retinal Neovascularization - pathology</subject><subject>Retinopathies</subject><subject>Retinopathy of Prematurity - drug therapy</subject><subject>Retinopathy of Prematurity - etiology</subject><subject>Retinopathy of Prematurity - pathology</subject><subject>Serpins - metabolism</subject><subject>Vascular Endothelial Growth Factor A - metabolism</subject><issn>1080-7683</issn><issn>1557-7732</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpFkEtLAzEQgIMotlaPXmUvgpeteWw26bHU-oCiIHoOs9mkpGyTutkV9NebpVVhYAbmYx4fQpcETwmWs9tN2E0pJnSKKeVHaEw4F7kQjB6nGkuci1KyETqLcYMxYbgkp2hEGS84JuUY3c1958CvXVgbb6KL2dJao7uYBZstfR1iB53zWYpXkwposmcTPiHqvoHWfadm8OfoxEITzcUhT9D7_fJt8ZivXh6eFvNVrhllXW7r2laVtraY0Qqg5mwmGTZSApXWAjGSFEAYx6wseM2ExRZmmqZmzYU1hE3QzX7urg0fvYmd2rqoTdOAN6GPihRUCkExLhOa71HdhhhbY9WudVtovxTBahCnkjg1iFODuMRfHUb31dbUf_SvqQRcH4D0OzS2Ba9d_OeGvTSd_gPft3bm</recordid><startdate>20130901</startdate><enddate>20130901</enddate><creator>BAI, Yu-Jing</creator><creator>HUANG, Lv-Zhen</creator><creator>ZHOU, Ai-Yi</creator><creator>MIN ZHAO</creator><creator>YU, Wen-Zhen</creator><creator>LI, Xiao-Xin</creator><general>Liebert</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20130901</creationdate><title>Antiangiogenesis Effects of Endostatin in Retinal Neovascularization</title><author>BAI, Yu-Jing ; HUANG, Lv-Zhen ; ZHOU, Ai-Yi ; MIN ZHAO ; YU, Wen-Zhen ; LI, Xiao-Xin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c323t-fddfbbcff492baad539830e88a28ffa1e814a13503645d37f0fa9c228fd57fe13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Angiogenesis Inhibitors - pharmacology</topic><topic>Animals</topic><topic>Animals, Newborn</topic><topic>Apoptosis - drug effects</topic><topic>Biological and medical sciences</topic><topic>Blotting, Western</topic><topic>Cell Movement - drug effects</topic><topic>Cell Proliferation - drug effects</topic><topic>Dextrans</topic><topic>Disease Models, Animal</topic><topic>Endostatins - pharmacology</topic><topic>Enzyme-Linked Immunosorbent Assay</topic><topic>Eye Proteins - metabolism</topic><topic>Female</topic><topic>Flow Cytometry</topic><topic>Fluoresceins</topic><topic>Human Umbilical Vein Endothelial Cells - drug effects</topic><topic>Humans</topic><topic>Medical sciences</topic><topic>Mice</topic><topic>Mice, Inbred C57BL</topic><topic>Nerve Growth Factors - metabolism</topic><topic>Ophthalmology</topic><topic>Oxygen - toxicity</topic><topic>Pharmacology. Drug treatments</topic><topic>Retinal Neovascularization - drug therapy</topic><topic>Retinal Neovascularization - metabolism</topic><topic>Retinal Neovascularization - pathology</topic><topic>Retinopathies</topic><topic>Retinopathy of Prematurity - drug therapy</topic><topic>Retinopathy of Prematurity - etiology</topic><topic>Retinopathy of Prematurity - pathology</topic><topic>Serpins - metabolism</topic><topic>Vascular Endothelial Growth Factor A - metabolism</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>BAI, Yu-Jing</creatorcontrib><creatorcontrib>HUANG, Lv-Zhen</creatorcontrib><creatorcontrib>ZHOU, Ai-Yi</creatorcontrib><creatorcontrib>MIN ZHAO</creatorcontrib><creatorcontrib>YU, Wen-Zhen</creatorcontrib><creatorcontrib>LI, Xiao-Xin</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of ocular pharmacology and therapeutics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>BAI, Yu-Jing</au><au>HUANG, Lv-Zhen</au><au>ZHOU, Ai-Yi</au><au>MIN ZHAO</au><au>YU, Wen-Zhen</au><au>LI, Xiao-Xin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Antiangiogenesis Effects of Endostatin in Retinal Neovascularization</atitle><jtitle>Journal of ocular pharmacology and therapeutics</jtitle><addtitle>J Ocul Pharmacol Ther</addtitle><date>2013-09-01</date><risdate>2013</risdate><volume>29</volume><issue>7</issue><spage>619</spage><epage>626</epage><pages>619-626</pages><issn>1080-7683</issn><eissn>1557-7732</eissn><abstract>Pathological retinal angiogenesis is a major cause of vision loss. Endostatin is a natural antiangiogenesis antitumor protein that is widely used in cancer studies. In this study, we investigated the efficacy and potential mechanisms of endostatin for the prevention of retinal neovascularization both in vitro and in vivo.
Human umbilical vein endothelial cells (HUVECs) were used for the in vitro studies. HUVECs were incubated with endostatin or the vascular endothelial growth factor (VEGF) and endostatin for different time points. Cell proliferation, migration, cell cycling, and tube formation studies were carried out using a Cell Counting Kit-8 assay, a Transwell assay, flow cytometry, and a Matrigel assay, respectively. Enzyme-Linked Immunosorbent Assay (ELISA) was used to study VEGF and pigment epithelial-derived factor (PEDF) protein secretion from the HUVECs at different time points. A murine oxygen-induced retinopathy (OIR) model was used for the in vivo studies. Seven-day-old C57BL/6J pups (p7) were exposed to 75% oxygen for 5 days. On p12, the animals were returned to a normal atmosphere and were immediately injected intravitreously with 1.5 μL of a 5 mg/mL endostatin solution. At p18, the mice were perfused with fluorescein-dextran-FITC, and their retinas were flat mounted to measure the nonperfused area. Retinal VEGF and PEDF levels were also measured by ELISA Kits in the OIR mice at p18.
In vitro, endostatin inhibited HUVEC proliferation in a dose-dependent manner and also inhibited HUVEC proliferation in a VEGF-containing medium. Additionally, endostatin can inhibit migration, tube formation, and VEGF secretion in HUVECs, while also inducing apoptosis in HUVECs at several time points. These effects were statistically significant when compared to the control group (P<0.05). In vivo, a single intravitreous injection of endostatin reduced the retinal nonperfused area from 30% in the control group to 23% in the treatment group (P<0.0001). Intravitrous injection of endostatin reduced VEGF levels in retinas, while it increased PEDF levels.
Endostatin showed convincing inhibitory effects on angiogenesis both in vitro and in vivo. The inhibitory effects may be, at least partly, resulted from the restoration of the PEDF/VEGF ratio. These data suggest that endostatin could offer an innovative pharmaceutical strategy for the prevention of retinal neovascularization.</abstract><cop>Larchmont, NY</cop><pub>Liebert</pub><pmid>23545016</pmid><doi>10.1089/jop.2012.0225</doi><tpages>8</tpages></addata></record> |
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| subjects | Angiogenesis Inhibitors - pharmacology Animals Animals, Newborn Apoptosis - drug effects Biological and medical sciences Blotting, Western Cell Movement - drug effects Cell Proliferation - drug effects Dextrans Disease Models, Animal Endostatins - pharmacology Enzyme-Linked Immunosorbent Assay Eye Proteins - metabolism Female Flow Cytometry Fluoresceins Human Umbilical Vein Endothelial Cells - drug effects Humans Medical sciences Mice Mice, Inbred C57BL Nerve Growth Factors - metabolism Ophthalmology Oxygen - toxicity Pharmacology. Drug treatments Retinal Neovascularization - drug therapy Retinal Neovascularization - metabolism Retinal Neovascularization - pathology Retinopathies Retinopathy of Prematurity - drug therapy Retinopathy of Prematurity - etiology Retinopathy of Prematurity - pathology Serpins - metabolism Vascular Endothelial Growth Factor A - metabolism |
| title | Antiangiogenesis Effects of Endostatin in Retinal Neovascularization |
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