中国组织工程研究 ›› 2025, Vol. 29 ›› Issue (35): 7663-7668.doi: 10.12307/2026.536

• 组织构建相关数据分析 Date analysis of organization construction • 上一篇    下一篇

肠道菌群与类风湿关节炎的因果关系:GWAS数据欧洲群体资料分析

汪  涛1,王顺谱2,闵友江3,王  敏2,李  乐1,张  宸1,肖伟平2   

  1. 1江西中医药大学,江西省南昌市  330004;2江西中医药大学附属医院,江西省南昌市  330006;3南昌医学院,江西省南昌市  330052


  • 收稿日期:2024-12-16 接受日期:2025-01-24 出版日期:2025-12-18 发布日期:2025-05-07
  • 通讯作者: 肖伟平,主任中医师,博士生导师,江西中医药大学附属医院,江西省南昌市 330006
  • 作者简介:汪涛,男,1998年生,江西省抚州市人,汉族,江西中医药大学在读博士,主要从事中医药防治骨伤科疾病的研究。
  • 基金资助:
    全国名老中医药专家传承工作室建设项目(赣财社指[2024]39号),项目负责人:肖伟平

Causal relationship between gut microbiota and rheumatoid arthritis: data analysis in European populations based on GWAS data

Wang Tao1, Wang Shunpu2, Min Youjiang3, Wang Min2, Li Le1, Zhang Chen1, Xiao Weiping2   

  1. 1Jiangxi University of Chinese Medicine, Nanchang 330004, Jiangxi Province, China; 2The Affiliated Hospital of Jiangxi University of Chinese Medicine, Nanchang 330006, Jiangxi Province, China; 3Nanchang Medical College, Nanchang 330052, Jiangxi Province, China
  • Received:2024-12-16 Accepted:2025-01-24 Online:2025-12-18 Published:2025-05-07
  • Contact: Xiao Weiping, Chief physician, Doctoral supervisor, The Affiliated Hospital of Jiangxi University of Chinese Medicine, Nanchang 330006, Jiangxi Province, China
  • About author:Wang Tao, PhD candidate, Jiangxi University of Chinese Medicine, Nanchang 330004, Jiangxi Province, China
  • Supported by:
    National Famous Elderly Chinese Medicine Experts Inheritance Workshop Construction Project, No. [2024]39 (XWP)

摘要:


文题释义:
肠道菌群:为人体肠道中最大的微生物集合,与许多疾病的发生发展密切相关。
孟德尔随机化:一种利用遗传变异作为工具变量,推断暴露因素与结局之间因果关系的方法。孟德尔随机化通过排除混杂偏倚和逆因果关系的干扰,可获得比临床观察性研究更为准确的结果。

背景:研究表明肠道菌群可能会影响类风湿关节炎的发展进程,然而,两者之间的因果关系尚不清楚。使用公开发表的GWAS数据对两者进行孟德尔随机化分析可探讨肠道菌群与类风湿关节炎之间的因果关系,有助于开发针对性的微生物疗法,为类风湿关节炎的预防和治疗提供方法和策略。
目的:采用两样本双向孟德尔随机化方法探讨肠道菌群与类风湿关节炎之间的潜在因果关系。
方法:使用MiBio-Gen联盟的肠道菌群全基因组关联研究(GWAS)数据和IEU Open GWAS数据库(英国布里斯托尔大学和流行病学部门共同开发的大型基因-表型关联数据库)的类风湿关节炎GWAS数据,以逆方差加权法为主要分析方法,MR-Egger回归法、加权中位数法、加权模型法和简单模型法为补充来研究肠道菌群与类风湿关节炎之间的因果关系。使用Cochran’s Q检验评估异质性,MR-PRESSO和MR-Egger intercept检验评估水平多效性,留一法检验结果的稳健性,反向孟德尔随机分析评估肠道菌群与类风湿关节炎是否存在反向因果关系。
结果与结论:①正向孟德尔随机化逆方差加权法分析结果显示,5种肠道菌群与类风湿关节炎存在因果关系,其中瘤胃球菌属(β=0.262,OR=1.300,P=0.013)、丁酸梭菌属( β=0.001,OR=1.001,P=0.014)会增加类风湿关节炎的发病风险,厌氧斯氏菌属(β=-0.225,OR=0.798,P=0.025)、毛螺菌属-UCG010(β=-0.177,OR=0.838,P=0.026)和草酸杆菌属(β=-0.171,OR=0.843,P=0.001)可以降低类风湿关节炎的发病风险;敏感性分析未见显著异质性和水平多效性(P均> 0.05),留一法检测证实了结果的稳健性,而逆方差加权法之外的其余4种方法的补充进一步验证了结果的可靠性与稳定性。②反向孟德尔随机化分析未发现类风湿关节炎与正向孟德尔随机化确定的5类肠道菌有因果关系。③结果表明,瘤胃球菌属、丁酸梭菌属可能是类风湿关节炎的危险因素,厌氧斯氏菌属、毛螺菌属-UCG010和草酸杆菌属可能是类风湿关节炎的保护因素。肠道菌群在类风湿关节炎的发病机制中可能发挥重要作用,为类风湿关节炎的预防与治疗提供了新的生物标志物。针对中国生物医学研究领域,可以借鉴国际经验,逐步建立和完善多中心的大规模遗传数据库,从而深入探讨肠道菌群与疾病风险之间的关系,推动中国精准医疗和个性化治疗的发展。
https://orcid.org/0009-0006-1080-9622(汪涛)

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程

关键词: 肠道菌群, 类风湿关节炎, 孟德尔随机化, 因果关系, 逆方差加权法

Abstract: BACKGROUND: Studies have shown that gut microbiota may affect the progression of rheumatoid arthritis. However, the causal relationship between the two is unknown. Mendelian randomization analysis of the two using published Genome Wide Association Study (GWAS) data can explore the causal relationship between gut microbiota and rheumatoid arthritis, helping to develop targeted microbial therapies and provide methods and strategies for the prevention and treatment of rheumatoid arthritis.
OBJECTIVE: To explore the potential causal relationship between gut microbiota and rheumatoid arthritis using two-sample two-way Mendelian randomization method. 
METHODS: Gut microbiota GWAS data from the MiBio-Gen consortium and rheumatoid arthritis GWAS data from the IEU Open GWAS database (a large gene-phenotype association database developed at the MRC Integrative Epidemiology Unit (IEU) at the University of Bristol, UK) were used. Inverse variance weighting was used as the main analysis method, and MR-Egger regression method, weighted median method, weighted model and simple model method were used as supplements to study the causal relationship between gut microbiota and rheumatoid arthritis. Heterogeneity was assessed using Cochran’s Q test, horizontal pleiotropy was assessed using MR-PRESSO and MR-Egger intercept tests, robustness of results was tested using leave-one method, and reverse Mendelian randomization analysis was used to assess the presence or absence of reverse causality.   
RESULTS AND CONCLUSION: (1) There was a causal relationship between five kinds of enteric bacteria and rheumatoid arthritis. Ruminococcus gauvreauii group (β=0.262, odds ratio [OR]=1.300, P=0.013) and Butyricimonas (β=0.001, OR=1.001, P=0.014) increased the risk of rheumatoid arthritis, while Anaerostipes (β=-0.225, OR=0.798, P=0.025), Lachnospiraceae-UCG010 (β=-0.177, OR=0.838, P=0.026) and Oxalobacter (β=-0.171, OR=0.843, P=0.001) reduced the risk of rheumatoid arthritis. Sensitivity analyses showed no significant heterogeneity or horizontal pleiotropy (all P > 0.05), and leave-one-out testing confirmed the robustness of the results, while the addition of the remaining four methods other than the inverse variance weighting method further validated the reliability and stability of the results. (2) Reverse Mendelian randomization analysis did not find a causal association between rheumatoid arthritis and the five kinds of enteric bacteria identified by Mendelian randomization analysis. These findings indicate that Ruminococcus gauvreauii group and Butyricimonas may be the risk factors of rheumatoid arthritis, while Anaerostipes, Lachnospiraceae-UCG010 and Oxalobacter may be the protective factors of rheumatoid arthritis. Gut microbiota may play an important role in the pathogenesis of rheumatoid arthritis, and provide new biomarkers for the prevention and treatment of rheumatoid arthritis. In addition, for the field of biomedical research in China, we can learn from international experience and gradually establish and improve a multi-center large-scale genetic database, so as to deeply explore the relationship between gut microbiota and disease risk, and promote the development of precision medicine and personalized treatment in China.

Key words: gut microbiota, rheumatoid arthritis, Mendelian randomization, causality, inverse variance weighting method

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