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删除CD38通过调节巨细胞介导炎症,在实验环境中减轻NEC的严重程度

Yue Ma¹, Yunfei Zhang², Xinli Liu²

¹Department of Pediatrics, Chongqing Health Center for Women and Children, Chongqing, China.

|October 4, 2024

概括

向CD38可以治疗死性肠球炎 (NEC). 删除CD38提高了NAD+水平,减少了NEC模型中的炎症和氧化应激. 这种方法还调节了巨细胞活动,为NEC提供了潜在的治疗策略.

科学领域:

免疫学免疫学免疫学
胃肠病学胃肠病学
新生儿医学新生儿医学

背景情况:

结核性肠球炎 (NEC) 是一种严重的胃肠道炎症疾病,主要影响早产婴儿.
巨细胞激活是NEC病变发生的一个关键因素.
CD38是一种ectoenzyme,调节NAD+代谢,影响细胞氧化还原和能量平衡.

研究的目的:

研究CD38在NEC病原发生中的作用.
为了确定CD38删除是否可以通过调节NAD+水平和巨细胞功能来改善NEC.

主要方法:

在NEC患者和小鼠模型中分析CD38表达.
在CD38被删除的小鼠中评估NEC严重程度和肠道损伤.
评估NAD+水平,氧化应激和炎症标志物.
调查巨细胞极化和激活状态.

主要成果:

在NEC患者和小鼠的肠道和血液中观察到CD38的表达增加.
在小鼠中,CD38删除显著减少了与NEC相关的肠损伤.
CD38的缺失导致NAD+水平升高,氧化应激降低,肠道炎症减少.
CD38的删除促进了M2巨细胞的两极分化,并抑制了巨细胞的激活和细胞化.

结论:

在NEC中,CD38在调节巨细胞激活和肠道炎症方面发挥着关键作用.
准CD38和NAD+信号传递是NEC治疗的一个有前途的治疗策略.

关键词:

CD38 CD38 CD38 CD38 CD38 CD38 CD38 CD38 CD38 CD38 CD38 CD38 CD38 CD38 炎症炎症是一种炎症.巨细胞是一个巨细胞.死性肠道结肠炎 (NECO) 是一种尼古丁胺胺腺因二核酸是什么发细胞症 (phagocytosis) 是一种致死细胞的发生.有反应性氧物种的反应性氧物种.

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