Abstract
Corneal neovascularization is a leading cause for compromised vision. Therapeutic prevention of corneal neovascularization is a major clinical challenge, and there is a compelling need to seek effective and safe therapy for this pathology. This study is aimed to evaluate curcumin nanoparticle for prevention of corneal neovascularization. MePEG-PCL nanoparticles were successfully prepared and characterized. The nanoparticle of curcumin has shown increased efficiency in preventing angiogenic sprouting in vitro. Topical delivery of curcumin nanoparticle in the eye showed enhanced retention of curcumin in the cornea, and significant improvement in prevention of corneal neovascularization over free curcumin as graded clinically and by histopathology; suppression in the expression of VEGF, inflammatory cytokines, and MMP was evidenced in the treated cornea. Curcumin inhibited NFκB in LPS-induced corneal cells. Histopathology and scanning electron microscopy showed absence of any adverse change in the corneal structure following application of curcumin nanoparticle. Therefore, we conclude that curcumin nanoparticle can be a potential candidate for prevention of corneal neovascularization.
Key message
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Curcumin nanoparticles show enhanced retention of curcumin in the cornea.
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Curcumin NPs suppress the expression of VEGF, inflammatory cytokines, and MMP.
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Curcumin NPs prevent corneal neovascularization by suppressing the NFκB pathway.
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Curcumin NPs may be a promising candidate for prevention of corneal neovascularization.
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Acknowledgments
We acknowledge the Department of Biotechnology (Grant No. BT/PR13434/NNT/28/469/2009), Government of India, for funding and West Bengal University of Animal & Fishery Sciences and CSIR-IICB for the support.
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The authors declare no conflict of interests related to this study.
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Nirparaj Pradhan and Rajdeep Guha contributed equally to this work.
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Pradhan, N., Guha, R., Chowdhury, S. et al. Curcumin nanoparticles inhibit corneal neovascularization. J Mol Med 93, 1095–1106 (2015). https://doi.org/10.1007/s00109-015-1277-z
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DOI: https://doi.org/10.1007/s00109-015-1277-z