Size-dependent nanoparticulate drug delivery in inflammatory bowel diseases

溃疡性结肠炎 炎症性肠病 医学 药品 药物输送 粘液 靶向给药 炎症性肠病 毒品携带者 不利影响 疾病 药理学 免疫学 内科学 纳米技术 材料科学 生物 生态学
作者
John Youshia,Alf Lamprecht
出处
期刊:Expert Opinion on Drug Delivery [Informa]
卷期号:13 (2): 281-294 被引量:64
标识
DOI:10.1517/17425247.2016.1114604
摘要

Introduction: Inflammatory bowel disease (IBD) is a chronic autoimmune disease, whose main forms are Crohn’s disease and ulcerative colitis. The main treatment of IBD includes oral administration of anti-inflammatory or immunosuppressive agents enclosed in traditional dosage forms, intended to release the active ingredient in the large intestine. However, most of them have been designed based on the physiology of healthy colon, which differs distinctly from conditions met in IBD patients risking adverse effects and patient intolerance. The use of nanoparticles as a drug carrier for treatment of IBD is a promising approach that is capable of solving this problem. Previous studies have shown a size-dependent behavior, where reducing the particle size, increases the targeting efficacy and the residence time compared to healthy controls.Areas Covered: This review covers the utilization of nanoparticles as drug delivery carriers for treating IBD. They can reach the inflamed colonic sites either by endothelial or epithelial delivery employing passive and active targeting strategies. The effect of particle size is analyzed in detail while elucidating other essential parameters such as the particle surface properties.Expert Opinion: One of the most important advantages of nanoparticles is their passive targeting to the inflamed colonic tissues due to their size. Recent findings underline that this size-dependent bioadhesion behavior can be further enhanced by selecting smart surface properties to help in penetrating the mucus and reach the inflamed sites.
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