微泡
坏死性小肠结肠炎
MAPK/ERK通路
外体
激酶
生物
细胞生物学
污渍
免疫学
医学
内科学
生物化学
小RNA
基因
作者
Wenjuan Chen,Xiaohong Chen,Yun Qian,Xingyun Wang,Yahui Zhou,Xiangyun Yan,Boshi Yu,Shuwen Yao,Zhangbin Yu,Jingai Zhu,Shuping Han
标识
DOI:10.1002/mnfr.202000845
摘要
Scope Human milk can prevent the development of necrotizing enterocolitis (NEC). Human milk is rich in cargo‐carrying exosomes that participate in intercellular communication. This study investigated the effects of term and preterm human milk‐derived exosomes, and elucidated their lipid expression profiles. Methods and Results Milk from healthy mothers is collected who have delivered full‐term or preterm infants, and exosomes are isolated and quantified. Administration of term and preterm milk exosomes significantly enhances epithelial proliferation and migration in vitro, and ameliorates the severity of NEC in vivo. A total of 395 lipids are identified in term and preterm human milk‐derived exosomes. Bioinformatics analysis and western blotting reveal that top 50 lipids regulate intestinal epithelial cell function via the Extracellular‐Signal‐Regulated Kinase/Mitogen Activated Protein Kinase (ERK/MAPK) pathway. Conclusion This study reveals for the first time the lipidomic complexities in exosomes derived from preterm and term milk. The results provide novel mechanistic insight on how human milk prevents the development of NEC.
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