ArticleBMC ophthalmology2022
Anti-angiogenic properties of rapamycin on human retinal pericytes in an in vitro model of neovascular AMD via inhibition of the mTOR pathway.
Article in BMC ophthalmology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 12 citations in OpenAlex.
- Targeted Therapies in Infantile Hemangiomas and Vascular Malformations: From β-Blockers to PI3K/AKT/mTOR Inhibitors.Journal of cellular and molecular medicine · 2026Review
- Role and regulation of kinases in age-related macular degeneration.Journal of translational medicine · 2026Review
- Pigment Epithelium-Derived Factor (PEDF)-Based Therapy Induced Photoreceptor Survival by Stabilizing Choroidal Neovessels in a VEGF Overexpression CNV Rat Model.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025Article
- Therapeutic potential of AAV2-shmTOR gene therapy in reducing retinal inflammation and preserving endothelial Integrity in age-related macular degeneration.Scientific reports · 2025Article
- Sirolimus-loaded exosomes as a promising vascular delivery system for the prevention of post-angioplasty restenosis.Drug delivery and translational research · 2024Article
- The Essential Role of Light-Induced Autophagy in the Inner Choroid/Outer Retinal Neurovascular Unit in Baseline Conditions and Degeneration.International journal of molecular sciences · 2023Review
- Nutritional Factors: Benefits in Glaucoma and Ophthalmologic Pathologies.Life (Basel, Switzerland) · 2023Review
- Mechanisms ofIntegrative cancer therapiesReview
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeChoroidal neovascularizations (CNV) are partially stabilized through a coverage of pericytes leading to a partial anti-VEGF resistence. Drugs licensed for neovascular AMD (nAMD) do not take this mechanical and growth factor-driven CNV stability into account. The purpose of this work was to see if inhibiting the mammalian target of rapamycin (mTOR) may successfully block angiogenic cellular pathways in primary human retinal pericytes in an in vitro model of nAMD.
methodsThe mTOR inhibitor rapamycin was used to treat human retinal pericytes (HRP) at doses ranging from 0.005 to 15 g/ml. A modified metabolism-based XTT-Assay was used to assess toxicity and anti-proliferative effects. A scratch wound experiment showed the effects on migration. On Cultrex basement membrane gels, the influence of rapamycin on the development of endothelial cell capillary-like structures by human umbilical vein vascular endothelial cells (HUVEC) in the absence and presence of pericytes was investigated.
resultsRapamycin showed no signs of toxicity within its range of solubility. The drug showed dose dependent anti-proliferative activity and inhibited migration into the scratch wound. Endothelial cell tube formation in a HUVEC monoculture was effectively inhibited at 45%. A co-culture of HUVEC with pericytes on Cultrex induced endothelial tube stabilization but was disrupted by the addition of rapamycin leading to degradation of 94% of the tubes.
conclusionsRapamycin allows for an efficient modulation of aspects of angiogenesis in pericytes via mTOR-modulation in vitro. Further studies are needed to elucidate whether rapamycin may have an impact on CNV in nAMD in vivo.
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