Intravitreal injectable hydrogels for sustained drug delivery in glaucoma treatment and therapy

Akulo, Kassahun Alula and Adali, Terin and Moyo, Mthabisi Talent George and Bodamyali, Tulin (2022) Intravitreal injectable hydrogels for sustained drug delivery in glaucoma treatment and therapy. Polymers, 14 (12). ISSN 2073-4360

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Glaucoma is extensively treated with topical eye drops containing drugs. However, the retention time of the loaded drugs and the in vivo bioavailability of the drugs are highly influenced before reaching the targeted area sufficiently, due to physiological and anatomical barriers of the eye, such as rapid nasolacrimal drainage. Poor intraocular penetration and frequent administration may also cause ocular cytotoxicity. A novel approach to overcome these drawbacks is the use of injectable hydrogels administered intravitreously for sustained drug delivery to the target site. These injectable hydrogels are used as nanocarriers to intimately interact with specific diseased ocular tissues to increase the therapeutic efficacy and drug bioavailability of the anti-glaucomic drugs. The human eye is very delicate, and is sensitive to contact with any foreign body material. However, natural biopolymers are non-reactive, biocompatible, biodegradable, and lack immunogenic and inflammatory responses to the host whenever they are incorporated in drug delivery systems. These favorable biomaterial properties have made them widely applicable in biomedical applications, with minimal adversity. This review highlights the importance of using natural biopolymer-based intravitreal hydrogel drug delivery systems for glaucoma treatment over conventional methods.
Item Type: Article
Uncontrolled Keywords: drug delivery systems; glaucoma; intravitreal injectable hydrogel; natural biopolymers
Divisions: Sabancı University Nanotechnology Research and Application Center
Depositing User: IC-Cataloging
Date Deposited: 21 Aug 2022 21:04
Last Modified: 21 Aug 2022 21:04

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