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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2007-12-10
pubmed:abstractText
Rifampicin, an antibacterial drug widely used in the treatment of tuberculosis and leprosy, has recently been reported to have anti-oxidative and anti-apoptotic effects. However, its anti-angiogenic effect has not been investigated. We examined its anti-angiogenic effect on tube formation and proliferation by human umbilical vein endothelial cells (HUVECs) in vitro and on retinal neovascularization in a murine oxygen-induced retinopathy model in vivo. In addition, we explored the potential mechanisms for its anti-angiogenic effect. Rifampicin significantly suppressed HUVEC tube formation and proliferation, and its effects appeared to be mediated at least in part through inhibition of extracellular signal-regulated kinase (ERK) 1/2 phosphorylation. Retinal neovasuclarization was induced in neonatal mice by returning the retina to normoxia (21% O2) after exposure to hyperoxia (75% O2) from postnatal day 7 (P7) to P12. Rifampicin was given subcutaneously at 20mg/kg once a day from immediately after hyperoxia (P12) to P16. At P17, flat-mounted retinas were prepared and evaluated for pathological and physiological angiogenesis. Rifampicin significantly suppressed retinal neovascularization (versus vehicle treatment), but revascularization of the capillary-free area did not differ between vehicle and rifampicin treatment. Rifampicin has anti-angiogenic effects in vitro and in vivo, and may be useful as an anti-angiogenic agent in the treatment of retinal neovascularization diseases.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0014-4835
pubmed:author
pubmed:issnType
Print
pubmed:volume
86
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
131-7
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed-meshheading:18031740-Angiogenesis Inhibitors, pubmed-meshheading:18031740-Animals, pubmed-meshheading:18031740-Body Weight, pubmed-meshheading:18031740-Cell Proliferation, pubmed-meshheading:18031740-Cells, Cultured, pubmed-meshheading:18031740-Disease Models, Animal, pubmed-meshheading:18031740-Dose-Response Relationship, Drug, pubmed-meshheading:18031740-Drug Evaluation, Preclinical, pubmed-meshheading:18031740-Endothelium, Vascular, pubmed-meshheading:18031740-Humans, pubmed-meshheading:18031740-Mice, pubmed-meshheading:18031740-Mice, Inbred C57BL, pubmed-meshheading:18031740-Mitogen-Activated Protein Kinase 1, pubmed-meshheading:18031740-Mitogen-Activated Protein Kinase 3, pubmed-meshheading:18031740-Oxygen, pubmed-meshheading:18031740-Phosphorylation, pubmed-meshheading:18031740-Retinal Neovascularization, pubmed-meshheading:18031740-Rifampin
pubmed:year
2008
pubmed:articleTitle
Rifampicin inhibits the retinal neovascularization in vitro and in vivo.
pubmed:affiliation
Department of Biofunctional Evaluation, Molecular Pharmacology, Gifu Pharmaceutical University, 5-6-1 Mitahora-higashi, 502-8585 Gifu, Japan.
pubmed:publicationType
Journal Article