ArticleInvestigative ophthalmology & visual science2017
Homocysteine Facilitates Prominent Polygonal Angiogenetic Networks of a Choroidal Capillary Sprouting Model.
Article in Investigative ophthalmology & visual science, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed, 3 citations in OpenAlex.
- An Inhibitory Aptamer Against PDGF-C Overcomes Anti-VEGF Refractoriness and Reduces Choroidal Neovascularization and Fibrosis.Investigative ophthalmology & visual science · 2026Article
- Hyperhomocysteinemia Causes Chorioretinal Angiogenesis with Placental Growth Factor Upregulation.Scientific reports · 2018Article
- Premenopausal breast cancer: potential clinical utility of a multi-omics based machine learning approach for patient stratification.The EPMA journal · 2018Article
Corrections and comments
- Erratum issuedErratum.2017
Authors and funding
5 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Purpose: To investigate the effects of homocysteine on choroidal angiogenesis, we established an ex vivo choroidal sprouting explant model and examined the potential growth factors for angiogenesis. Methods: Choroid fragments with retinal pigment epithelium were isolated from mouse and embedded in Matrigel. Homocysteine at different concentrations were added to the culture mediums. The choroidal explants were observed at different time points, and the total area of choroidal sprouting was measured and analyzed. Results: Homocysteine evoked choroidal capillary sprouting by inducing capillary endothelial cell proliferation with pericyte formation and by facilitating polygonal angiogenetic networks. In some cases, vascular lumens were observed in the newly forming capillaries facilitated by homocysteine. The choroidal sprouting effect of homocysteine can only be observed at a certain range of homocysteine concentration, with 1-mM homocysteine exhibiting the most significantly increased choroidal sprouting areas. Isolectin overexpression was noted in the homocysteine-treated group. Possible growth factors for angiogenesis were detected through immunofluorescent staining, which demonstrated the overexpression of platelet-derived growth factor C and angiopoietin 1 in the homocysteine-treated preparations only. In these preparations, platelet-derived growth factor C was highly expressed in the tip cells of sprouting capillaries. Conclusions: We therefore conclude that platelet-derived growth factor C and angiopoietin 1 may play key roles in the choroid angiogenesis evoked by homocysteine.
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