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产生氨酸的CD39⁺等离子体对在儿科IBD中成功治疗infliximab有倾向

Alexander Schnell¹, Benedikt Schwarz², Hannah Schmidt³

¹Pediatric Gastroenterology and Hepatology, Department of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany alexander.schnell@uk-erlangen.de.

Life science alliance

|April 8, 2025

概括

在B细胞上的CD39和CD73调节免疫反应. 在儿科炎症性肠病 (IBD) 中,B细胞的CD39表达增加与成功的因弗力西马布 (IFX) 治疗相关,这表明治疗生物标志物.

科学领域:

免疫学免疫学免疫学
胃肠病学胃肠病学
药理学药理学是指药理学的学科.

背景情况:

B细胞产生互白素-10并表达CD39和CD73核突酶.
CD39和CD73将细胞外ATP (eATP) 代谢产生免疫抑制性腺,影响免疫平衡.
了解B细胞免疫调节分子表达在儿科炎性肠病 (IBD) 中至关重要.

研究的目的:

研究儿科IBD患者B细胞子集上的CD39和CD73的表达.
为了确定CD39/CD73表达和对因弗利克西马布 (IFX) 治疗的反应之间的关联.
探索这些分子作为IFX治疗成功的潜在生物标志物的作用.

主要方法:

流细胞测量用于分析B细胞子集和CD39/CD73表达在42名儿科IBD患者和14名健康对照 (HC) 中.
在治疗12个月后评估IFX反应.
测量了B细胞的ATP降解能力和腺生产.

主要成果:

与非响应者 (NRS) 相比,响应的患者 (RS) 在血细胞上增加了CD39和CD39/CD73在原始和记忆B细胞上的共同表达.
响应者在治疗前表现出更高的B细胞ATP降解和腺生产.
IFX不响应者具有较少的α4β7hi血芽细胞,CD39+血芽细胞在炎症组织中减少,特别是在NRS中.

结论:

在B细胞,特别是CD39+等离子体上,CD39和CD73的表达可能作为儿童IBDIFX治疗成功的预测生物标志物.
这些B细胞子集在IBD免疫治疗的背景下具有调节潜力.
向或监测CD39/CD73表达B细胞可以为治疗策略提供信息.

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