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[在没有炎症性肠道疾病的脊椎关节炎患者中,与胃肠道症状相关的HLA基因型]
Maria Alejandra Meneses-Toro1,2, Omar Javier Calixto3,2, Viviana Parra-Izquierdo4,5
1Hospital Militar Central, Rheumatology and Immunology Department, Clinical Immunology Group, Bogotá, Colombia. maleja.mt@gmail.com.
概括
特定人类白细胞抗原 (HLA) 基因型与脊椎关节炎 (SpA) 患者的胃肠道问题有关. 这些HLA关联可能会使个体易患食物不耐受症和消化系统症状,特别是在大肠.
科学领域:
- 免疫遗传学 免疫遗传学
- 胃肠病学 胃肠病学
- 类风湿病学 类风湿病学
背景情况:
- 脊椎关节炎 (SpA) 是一群可以影响脊椎和关节的炎症性疾病.
- 胃肠道 (GI) 症状和炎症在SPA中很常见,但它们的遗传基础尚未完全理解.
- 人类白细胞抗原 (HLA) 基因在免疫反应中起着至关重要的作用,并与各种自身免疫性疾病有关.
研究的目的:
- 为了研究特定的HLA-A,HLA-B和HLA-DR基因型和SPA患者的胃肠道变量之间的关联.
- 探索在没有炎症性肠病 (IBD) 的SPA患者中对食物不耐受和胃肠道症状的潜在遗传倾向.
主要方法:
- 追溯分析91名SPA患者和401名健康对照.
- 使用Illumina测序/PacBio和LIFECODES HLA-PCR/SSO多重测序进行的HLA类型.
- 通过调查,临床评估,结肠镜检查和组织病理学研究来评估胃肠道症状.
主要成果:
- 特定的HLA基因型 (例如A*26,A*29,B*27) 与腹部疼痛有关,而其他类型 (DRB1*11,DRB1*16) 与腹部膨胀有关.
- 像A*30,B*38,DRB1*13/14这样的基因型与减肥相关,而B*40与长期腹相关.
- 还发现HLA与食物不耐受性 (例如,B*27与谷物/乳制品) 以及内和结肠的内镜/组织学变化有关.
结论:
- 研究结果表明,在SPA患者中,存在对食物不耐受和胃肠道症状的遗传倾向,与特定的HLA基因型有关.
- 在研究的哥伦比亚人口中,HLA-B*27和其他HLA类I和II基因 (例如DRB1*14) 被突出显示为重要的.
- 这些遗传关联可能会导致SPA的胃肠道表现的发展,包括皮质组织变化.
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