用于治疗干眼症和眼部炎症的载乳铁蛋白脂质体的研发
Development of Lactoferrin-Loaded Liposomes for the Management of Dry Eye Disease and Ocular Inflammation.
作者信息
López-Machado Ana, Díaz-Garrido Natalia, Cano Amanda, Espina Marta, Badia Josefa, Baldomà Laura, Calpena Ana Cristina, Souto Eliana B, García María Luisa, Sánchez-López Elena
机构信息
Department of Pharmacy and Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain.
Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, 08028 Barcelona, Spain.
出版信息
Pharmaceutics. 2021 Oct 15;13(10):1698. doi: 10.3390/pharmaceutics13101698.
Dry eye disease (DED) is a high prevalent multifactorial disease characterized by a lack of homeostasis of the tear film which causes ocular surface inflammation, soreness, and visual disturbance. Conventional ophthalmic treatments present limitations such as low bioavailability and side effects. Lactoferrin (LF) constitutes a promising therapeutic tool, but its poor aqueous stability and high nasolacrimal duct drainage hinder its potential efficacy. In this study, we incorporate lactoferrin into hyaluronic acid coated liposomes by the lipid film method, followed by high pressure homogenization. Pharmacokinetic and pharmacodynamic profiles were evaluated in vitro and ex vivo. Cytotoxicity and ocular tolerance were assayed both in vitro and in vivo using New Zealand rabbits, as well as dry eye and anti-inflammatory treatments. LF loaded liposomes showed an average size of 90 nm, monomodal population, positive surface charge and a high molecular weight protein encapsulation of 53%. Biopharmaceutical behaviour was enhanced by the nanocarrier, and any cytotoxic effect was studied in human corneal epithelial cells. Developed liposomes revealed the ability to reverse dry eye symptoms and possess anti-inflammatory efficacy, without inducing ocular irritation. Hence, lactoferrin loaded liposomes could offer an innovative nanotechnological tool as suitable approach in the treatment of DED.
干眼症(DED)是一种高发性多因素疾病,其特征在于泪膜缺乏稳态,从而导致眼表炎症、酸痛和视觉障碍。传统的眼科治疗存在局限性,如生物利用度低和副作用。乳铁蛋白(LF)是一种有前景的治疗工具,但其在水中稳定性差和鼻泪管引流率高阻碍了其潜在疗效。在本研究中,我们通过脂质膜法将乳铁蛋白掺入透明质酸包被的脂质体中,随后进行高压均质处理。在体外和离体条件下评估了药代动力学和药效学特征。使用新西兰兔在体外和体内测定细胞毒性和眼耐受性,以及干眼症和抗炎治疗效果。负载乳铁蛋白的脂质体平均大小为90nm,呈现单峰分布,表面带正电荷,高分子量蛋白包封率为53%。纳米载体增强了生物药剂学行为,并在人角膜上皮细胞中研究了任何细胞毒性作用。所制备的脂质体显示出逆转干眼症症状的能力,并具有抗炎功效,且不会引起眼部刺激。因此,负载乳铁蛋白的脂质体可作为一种创新的纳米技术工具,为干眼症的治疗提供合适的方法。
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