Storage of Extracellular Vesicles in Human Milk, and MicroRNA Profiles in Human Milk Exosomes and Infant Formulas

被引：90

作者：

Leiferman, Amy ^{[1
]}

Shu, Jiang ^{[2
]}

Upadhyaya, Bijaya ^{[1
]}

Cui, Juan ^{[2
]}

Zempleni, Janos ^{[1
]}

机构：

[1] Univ Nebraska, Dept Nutr & Hlth Sci, 316C Leverton Hall, Lincoln, NE 68583 USA

[2] Univ Nebraska, Dept Comp Sci & Engn, Lincoln, NE 68583 USA

来源：

JOURNAL OF PEDIATRIC GASTROENTEROLOGY AND NUTRITION | 2019年 / 69卷 / 02期

基金：

美国食品与农业研究所; 美国国家卫生研究院;

关键词：

casein; fat globules; protocols; stability; BOVINE-MILK; COWS MILK; TRANSPORT; CELLS;

D O I：

10.1097/MPG.0000000000002363

中图分类号：

R57 [消化系及腹部疾病];

学科分类号：

摘要：

The objectives of this study were to lay the methodological groundwork for field studies of microRNA analysis in exosomes from small sample volumes of human milk, and assess exosome and microRNA content in infant formulas. When human milk was stored at 4 degrees C for 4 weeks, the count of exosome-sized vesicles decreased progressively to 49% +/- 13% of that in fresh milk. Exosomes were purified from 1 mL of fresh human milk and their microRNA content was assessed by microRNA-sequencing analysis and compared with that in infant formulas. We identified 221 microRNAs in exosomes from 3 samples of fresh human milk; 84 microRNAs were present in all 3 samples. MicroRNAs were not detectable in infant formulas and their exosome-sized vesicles, which appeared to be casein micelles. We conclude that large-scale studies of microRNAs in human milk exosomes are feasible, and exosomes and microRNAs are not detectable in formulas.

引用

页码：235 / 238

页数：4

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