Section of Pharmacology, Department of Medicine and Surgery, University of Perugia, Perugia, Italy.
Front Immunol. 2021 Jun 3;12:691480. doi: 10.3389/fimmu.2021.691480. eCollection 2021.
Inflammatory bowel disease (IBD) comprises ulcerative colitis (UC) and Crohn's disease (CD). IBD etiopathology is multifactorial and involves alteration of immune cells and chronic activation of the inflammatory cascade against yet unknown environmental factors that trigger the disease. IBD therapy aims at improving the quality of life and reducing the risk of disease-related complications to avoid the need for surgery. There is no specific cure for IBDs, and the focus of therapy is supportive measures and use of anti-inflammatory and immunosuppressive drugs. Glucocorticoids (GCs) are powerful anti-inflammatory and immunomodulatory agents used to treat many acute and chronic inflammatory diseases. GCs remain basic treatment for moderate-to-severe IBD, but their use is limited by several important adverse drug effects. Topical administration of a second-generation of GCs, such as budesonide and beclomethasone dipropionate (BDP), represents a valid alternative to use of older, systemic GCs. Administration of second-generation GCs shows promisingly high topical activity and less systemic toxicity, but maintenance therapy with these new GCs in IBD patients is associated with multiple adverse effects. In this review, we make a comparative analysis of the efficacy of first-generation and second-generation GCs in IBD treatment. Unraveling GC biology at the molecular level to uncouple their clinical benefits from detrimental effects is important. One approach is to consider new GC mediators, such as glucocorticoid-induced leucine zipper, which may have similar anti-inflammatory properties, but avoids the side effects of GCs. This in-depth analysis can help to improve the development and the clinical outcomes of GC therapies in IBD.
炎症性肠病(IBD)包括溃疡性结肠炎(UC)和克罗恩病(CD)。IBD 的病因学是多因素的,涉及免疫细胞的改变和炎症级联的慢性激活,针对尚未知的环境因素,这些因素触发疾病。IBD 的治疗旨在提高生活质量,降低疾病相关并发症的风险,避免需要手术。IBD 没有特定的治疗方法,治疗的重点是支持性措施和使用抗炎和免疫抑制药物。糖皮质激素(GCs)是一种强大的抗炎和免疫调节剂,用于治疗许多急性和慢性炎症性疾病。GCs 仍然是中重度 IBD 的基本治疗方法,但由于其使用受到多种重要不良反应的限制。第二代 GCs,如布地奈德和倍氯米松二丙酸酯(BDP)的局部给药,是替代使用旧的、全身性 GCs 的有效方法。第二代 GCs 的给药显示出很高的局部活性和较低的全身毒性,但在 IBD 患者中维持治疗这些新型 GCs 与多种不良反应相关。在这篇综述中,我们对第一代和第二代 GCs 在 IBD 治疗中的疗效进行了比较分析。在分子水平上揭示 GC 生物学,将其临床益处与有害作用分离,这一点很重要。一种方法是考虑新的 GC 介质,如糖皮质激素诱导的亮氨酸拉链,它可能具有相似的抗炎特性,但避免了 GCs 的副作用。这种深入分析可以帮助改善 IBD 中 GC 治疗的开发和临床结果。