Similar Datasets
Project description:Breast milk is the primary source of nutrition for newborns, and rich in immunological components. microRNAs (miRNAs), a well-defined group of non-coding small RNAs, are present in various body fluids (such as breast milk), which are selectively packaged inside the exosomes, a type of membrane vesicles, secreted by most cell types. These exosomal miRNAs could be actively delivered into recipient cells, and regulate target gene expression and recipient cell function. We present the lactation-related miRNA expression profiles in porcine milk exosomes across entire lactation period in pig industry (newborn to 28 days after birth) using deep sequencing technology. We found that the immune-related miRNAs are presented and enriched in breast milk exosomes, and generally resistant to relatively harsh conditions. Notably, these exosomal miRNAs exhibited the higher abundances in the colostrum (newborn to 3 days after birth) than that in the mature milk (7 to 28 days after birth), as well as in the serum of colostrum-feeding piglets compared with the only mature milk-feeding piglets. These immune-related miRNAs-loaded exosomes in breast milk may be transferred into the infant body via the digestive tract. These observations are prelude to the in-depth investigations of the essential roles of the breast milk in the development of the infant’s immune system.
2012-09-17 | GSE36590 | GEO
Project description:Breast milk is the primary source of nutrition for newborns, and rich in immunological components. microRNAs (miRNAs), a well-defined group of non-coding small RNAs, are present in various body fluids (such as breast milk), which are selectively packaged inside the exosomes, a type of membrane vesicles, secreted by most cell types. These exosomal miRNAs could be actively delivered into recipient cells, and regulate target gene expression and recipient cell function. We present the lactation-related miRNA expression profiles in porcine milk exosomes across entire lactation period in pig industry (newborn to 28 days after birth) using deep sequencing technology. We found that the immune-related miRNAs are presented and enriched in breast milk exosomes, and generally resistant to relatively harsh conditions. Notably, these exosomal miRNAs exhibited the higher abundances in the colostrum (newborn to 3 days after birth) than that in the mature milk (7 to 28 days after birth), as well as in the serum of colostrum-feeding piglets compared with the only mature milk-feeding piglets. These immune-related miRNAs-loaded exosomes in breast milk may be transferred into the infant body via the digestive tract. These observations are prelude to the in-depth investigations of the essential roles of the breast milk in the development of the infant’s immune system. Eight small RNA libraries in porcine breast milk exosomes of six lactigenous stages (0, 3, 7, 14, 21 and 28 days after birth) from three female pigs were sequenced.
2012-09-17 | E-GEOD-36590 | biostudies-arrayexpress
Project description:Milk contains fats, carbohydrates, proteins, RNAs and enzymes, but also mRNA and microRNAs(miRNA), which plays an important role in neonatal innate and adaptive immunity. The following study investigates whether or not miRNA of exosome in milk is a vital pathway for miRNA of milk absorbing. Briefly, 280 pre-miRNAs and 326 mature miRNA were found. 37 exosomal miRNAs were upregulated (twice fold) compared to miRNAs found outside the exosomes. Among these miRNAs, ssc-miR-193a-3p’s expression was up regulated 1467.35 times, while ssc-miR-423-5p、ssc-miR-551a、ssc-miR-138、ssc-miR-1 and ssc-miR-124a were highly concentrated and upregulated from 13.58 to 30.06 times. Moreover, all of these miRNAs play essential roles in cell’s development and basic physiology processes in immune system. Following the analysis of target gene prediction and related signaling pathways, 9262 target genes showed to be mainly concentrated on three signaling pathway: metabolic pathways、pathways in cancer, and Phosphatidylinositol 3-kinase /Protein Kinase B(PI3K/Akt) signaling pathways. In addition, more than 20 miRNAs showed to be highly concentrated on exosomes, such as MECP2、GYS1、 LRRC8A、BCL9L、PHRF1 and ELOVL1, all closely related to immunity and engendering of gene. After performing in-depth research on miRNA’s localization, distribution and function related metabolism, we found that these exosome concentrated miRNA’s target genes were interrelated to development and basic cell functions, like metabolism and immunity. These results imply that miRNAs in breast milk can influence offspring via milk exosomes.
2017-12-05 | GSE107652 | GEO
Project description:Breast milk is a complex liquid that enriched in immunological components and affect the development of the infant immune system. Exosomes, the membranous vesicles of endocytic origin, are ubiquitously in various body fluids which can mediate intercellular communication. MicroRNAs (miRNAs), a well-defined group of non-coding small RNAs, in human breast milk are packaged inside exosomes. Here, we present the identification of miRNAs in human breast milk exosomes using deep sequencing technology. We found that the immune-related miRNAs are enriched in breast milk exosomes, and are resistant to the general harsh conditions. Four small RNA libraries in human breast milk exosomes from four healthy women (30 +/- 0.9 years old, primiparity) when the infant were aged at 60 days were sequenced.
2011-12-21 | E-GEOD-32253 | biostudies-arrayexpress
Project description:In dairy cows, milk production and composition are affected by numerous factors, including diet. Milk is the body fluid with the highest RNA concentration, including numerous microRNA. These microRNA presence in the different milk compartments is still poorly documented and the effect of feed restriction on milk miRNome has not been described yet. The aim of this study was to describe the effects of feed restrictions of different intensitizes on milk compartment miRNome composition. Two feed restriction trials were performed on lactating dairy cows, one of high intensity and one of moderate intensity. 2 896 mature microRNA were identified in milk, including 1 493 that were already known in bovine specie. Among the 1 095 miRNA that were abundant enough to be informative, 10% were exclusive to one milk compartment and the abundance of 155 varied between compartments, revealing a specific miRNome for each milk fraction. Feed restriction affected differently these miRNome, with microRNA in whole milk and milk extracellular vesicles being the most affected and microRNA in fat globules and exfoliated mammary epithelial cells being relatively or completely unaffected. Target prediction of known microRNA that varied under feed restriction reflected modification of some key pathways for lactation related to milk fat and protein metabolisms, cell cycle and stress responses. These findings open up opportunities for future research on the use of milk miRNA as biomarkers of energy status in dairy cows.
2023-05-31 | GSE207759 | GEO
Project description:We report the application of miRNA next generation sequencing (NGS) for the analysis of impact of processing on miRNA in human breast milk, donated by 3 volunteers. MiRNA content of total and exosomal fraction was compared between unprocessed milk and sample subjected to either Holder (thermal) pasteurization (HoP) or elevated pressure processing (HPP). NGS reads were mapped to miRBase in order to obtain miRNA counts. Then, we analyzed differences in the miRNA abundance and function between raw and processed material. It was observed that both processing methods reduce number of miRNA reads and HoP is significantly more detrimental to miRNA than HPP.
2019-12-19 | GSE142282 | GEO
Project description:Breast milk is a complex liquid that enriched in immunological components and affect the development of the infant immune system. Exosomes, the membranous vesicles of endocytic origin, are ubiquitously in various body fluids which can mediate intercellular communication. MicroRNAs (miRNAs), a well-defined group of non-coding small RNAs, in human breast milk are packaged inside exosomes. Here, we present the identification of miRNAs in human breast milk exosomes using deep sequencing technology. We found that the immune-related miRNAs are enriched in breast milk exosomes, and are resistant to the general harsh conditions.
2011-12-21 | GSE32253 | GEO
Project description:Breast milk composition dynamically adapts to factors like gestational age at birth. This multi-omics dataset integrates single‑cell RNA sequencing and exosomal miRNA profiles from the same breast milk samples, capturing cellular and molecular transformations that meet the developmental needs of preterm and term infants. It provides a unique resource for investigating maternal‑neonatal interactions, personalized nutrition, and infant development across cellular and regulatory dimensions.
2026-04-15 | GSE328024 | GEO
Project description:We investigated the expression changes of miRNAs contained in human breast milk derived extracellular vesicles over the course of lactation.
2026-01-14 | GSE294523 | GEO
Project description:Milk can mediate maternal-neonatal signal transmission by the bioactive component-extracellular vesicles (EVs), which select specific types of miRNA to encapsulate. The miRNA profiling of sheep milk EVs was characterized by sequencing and compared with that of cow milk. Sheep milk EVs contained various small RNAs, including tRNA, Cis-regulatory element, rRNA, snRNA, other Rfam RNA, and miRNA, which held about 36% of all the small RNAs. Totally 84 types of miRNAs were annotated with Ovis aries by miRBase (version 22.0) in sheep milk EVs, with 75 shared types of miRNAs in all samples. Fourteen sheep milk EV-miRNAs in the top 20, occupying 98% of the total expression, were immune-related.
2020-01-17 | GSE143779 | GEO