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2014 ; 129
(ä): 161-71
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Natural product inhibitors of ocular angiogenesis
#MMPMID25304218
Sulaiman RS
; Basavarajappa HD
; Corson TW
Exp Eye Res
2014[Dec]; 129
(ä): 161-71
PMID25304218
show ga
Natural products are characterized by high chemical diversity and biochemical
specificity; therefore, they are appealing as lead compounds for drug discovery.
Given the importance of angiogenesis to many pathologies, numerous natural
products have been explored as potential anti-angiogenic drugs. Ocular
angiogenesis underlies blinding eye diseases such as retinopathy of prematurity
(ROP) in children, proliferative diabetic retinopathy (DR) in adults of working
age, and age-related macular degeneration (AMD) in the elderly. Despite the
presence of effective therapy in many cases, these diseases are still a
significant health burden. Anti-VEGF biologics are the standard of care, but may
cause ocular or systemic side effects after intraocular administration and
patients may be refractory. Many anti-angiogenic compounds inhibit tumor growth
and metastasis alone or in combination therapy, but a more select subset of them
has been tested in the context of ocular neovascular diseases. Here, we review
the promise of natural products as anti-angiogenic agents, with a specific focus
on retinal and choroidal neovascularization. The multifunctional curcumin and the
chalcone isoliquiritigenin have demonstrated promising anti-angiogenic effects in
mouse models of DR and choroidal neovascularization (CNV) respectively. The
homoisoflavanone cremastranone and the flavonoid deguelin have been shown to
inhibit ocular neovascularization in more than one disease model. The isoflavone
genistein and the flavone apigenin on the other hand are showing potential in the
prevention of retinal and choroidal angiogenesis with long-term administration.
Many other products with anti-angiogenic potential in vitro such as the lactone
withaferin A, the flavonol quercetin, and the stilbenoid combretastatin A4 are
awaiting investigation in different ocular disease-relevant animal models. These
natural products may serve as lead compounds for the design of more specific,
efficacious, and affordable drugs with minimal side effects.
|*Biological Products
[MESH]
|Angiogenesis Inhibitors/therapeutic use
[MESH]
|Animals
[MESH]
|Eye Diseases/pathology/*prevention & control
[MESH]