Circulating and intestinal regulatory T cells in inflammatory bowel disease: A systemic review and meta-analysis.

IF 4.3 4区 医学 Q2 IMMUNOLOGY International Reviews of Immunology Pub Date : 2024-01-01 Epub Date: 2023-08-24 DOI:10.1080/08830185.2023.2249525
Shihao Duan, Yubin Cao, Pingrun Chen, Yi Yang, Yan Zhang
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Abstract

Regulatory T cells (Tregs) play an important immunosuppressive role in inflammatory bowel disease (IBD). However, findings on the quantitative and functional changes of intestinal and circulating Tregs in patients with IBD are rather contradictory. We therefore conducted a meta-analysis on this issue. The pooled effect was assessed using the standardized mean difference (SMD) with a 95% confidence interval (CI), and subgroup analyses were performed to investigate heterogeneity. This analysis included 764 IBD (402 UC and 362 CD) patients and 341 healthy controls (HCs) pooled from 17 eligible studies. The percentage of circulating Tregs was significantly decreased in active IBD patients compared to HCs (SMD = -0.95, p < 0.001) and inactive IBD patients (SMD = -0.80, p < 0.001). There was no difference in the percentage of circulating Tregs between inactive IBD patients and HCs. The suppressive function of circulating Tregs was impaired in active IBD patients according to limited data (SMD = -0.75, p = 0.02). Besides, the percentage of intestinal Tregs was significantly higher in inflamed regions than in non-inflamed regions (SMD = 0.85, p < 0.001). Our study quantitatively summarized the quantitative and functional changes of Tregs and supported the therapeutic potential of Tregs in IBD. Moreover, additional research into the functions and characteristics of intestinal Tregs in IBD is needed.

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炎症性肠病中的循环和肠道调节性 T 细胞:系统回顾与荟萃分析
调节性 T 细胞(Tregs)在炎症性肠病(IBD)中发挥着重要的免疫抑制作用。然而,有关 IBD 患者肠道和循环 Tregs 数量和功能变化的研究结果却相互矛盾。因此,我们对这一问题进行了荟萃分析。我们使用标准化平均差(SMD)和 95% 置信区间(CI)评估了汇总效应,并进行了亚组分析以研究异质性。该分析纳入了从 17 项符合条件的研究中汇总的 764 名 IBD 患者(402 名 UC 患者和 362 名 CD 患者)和 341 名健康对照组(HCs)。与 HCs 相比,活动性 IBD 患者的循环 Tregs 百分比明显下降(SMD = -0.95,p p = 0.02)。此外,炎症区域的肠道 Tregs 百分比明显高于非炎症区域(SMD = 0.85,p
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来源期刊
CiteScore
11.00
自引率
4.00%
发文量
24
期刊介绍: This review journal provides the most current information on basic and translational research in immunology and related fields. In addition to invited reviews, the journal accepts for publication articles and editorials on relevant topics proposed by contributors. Each issue of International Reviews of Immunology contains both solicited and unsolicited review articles, editorials, and ''In-this-Issue'' highlights. The journal also hosts reviews that position the authors'' original work relative to advances in a given field, bridging the gap between annual reviews and the original research articles. This review series is relevant to all immunologists, molecular biologists, microbiologists, translational scientists, industry researchers, and physicians who work in basic and clinical immunology, inflammatory and allergic diseases, vaccines, and additional topics relevant to medical research and drug development that connect immunology to disciplines such as oncology, cardiovascular disease, and metabolic disorders. Covered in International Reviews of Immunology: Basic and developmental immunology (innate and adaptive immunity; inflammation; and tumor and microbial immunology); Clinical research (mechanisms of disease in man pertaining to infectious diseases, autoimmunity, allergy, oncology / immunology); and Translational research (relevant to biomarkers, diagnostics, vaccines, and drug development).
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