Donkey milk Extracellular Vesicles label-free quantitative proteomics
Ontology highlight
ABSTRACT:
ORGANISM(S): Equus Caballus X Asinus
SUBMITTER: 
Qingshan Ma
PROVIDER: PXD070981 | iProX | Thu Nov 20 00:00:00 GMT 2025
REPOSITORIES: iProX
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Project description:microRNA profiles of human breast milk derived extracellular vesicles
| PRJNA1250443 | ENA
Project description:Milk contains microRNAs (miRNAs) that are protected by extracellular vesicles (EV). Beyond variations among individuals, the nutritional conditions of cattle play a role in shaping these milk miRNA profiles. This study explored milk-derived EV-miRNA variations induced by inulin supplementation and analyzed involved pathways. Fourteen lactating cows with sub-clinical mastitis were equally and randomly divided into an inulin and a control group. Cows in the inulin group received 300 g/d inulin, while the control group did not. After one week of adaptation and five weeks of treatment, milk-derived EV-miRNAs from cows were isolated. Differentially expressed (DE) miRNAs were identified via high-throughput sequencing. Functional enrichment analyses, including Gene Ontology (GO) enrichment and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses, were conducted to examine the target genes of DE miRNAs. Inulin supplementation did not significantly alter miRNA length, the number of known miRNAs, or the read number of small RNAs.
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Project description:We established a novel and cost-effective procedure to isolate extracellular vesicles from bovine milk via salting-out. We aimed to obtain the profiling of the small RNAs in these EVs as an important characterization in EV research.
2021-09-04 | GSE183175 | GEO
Project description:Mare milk is rich in nutrients and bioactive compounds, suggesting that its exosomes may possess immunomodulatory properties. We used microarray technology to profile the global gene expression of mare milk-derived small extracellular vesicles (MM-sEVs) and identified distinct classes of differentially expressed miRNAs targeting pathways and associated with diseases.
2025-08-03 | GSE303867 | GEO
Project description:Extracellular vesicles (EVs) and their microRNA (miRNA) cargo have been suggested as potential biomarkers for mammary gland health in cattle. However, milk is a dynamic fluid, and its biologically active components, including miRNAs, could be subject to changes throughout the day. The current study aimed to evaluate the circadian fluctuation of milk EVs miRNA cargo to assess the feasibility of milk EVs as future biomarkers for mammary gland health management. Milk from four healthy dairy cows was collected manually from one quarter during four consecutive days in the two daily milking sessions in the morning and the afternoon. The SCC was determined, and the milk EVs were isolated from skimmed milk. The presence of EVs was confirmed by transmission electron microscopy (TEM), tunable resistive pulse sensing (TRPS), and western blot (WB). Small RNA libraries were produced from 10 ng of extracted RNA and sequenced in two lanes of a HiSeq2500. The heterogeneity and integrity of EVs and the protein EV markers CD9, CD81, and TSG101 were confirmed by TEM and WB. The sequencing revealed that despite daily fluctuation in other milk components, like the somatic cells during milking sessions, the miRNA cargo abundance in milk EVs stayed constant. Our results show that the miRNA cargo of milk EVs is very stable regardless of the hour of the day, supporting their potential use as diagnostic markers for mammary gland health.
2023-07-05 | GSE232617 | GEO
Project description:Mammalian milk is not only a source of nutrition for the newborn, but also contains various components that regulate further development. For instance, milk is an abundant source of microRNAs (miRNAs), which are evolutionary conserved small non-coding RNAs that are involved in post-transcriptional regulation of target mRNA. MiRNAs present in milk can occur in extracellular vesicles (EV), which are nanosized membrane vesicles released by many cell types as a means of intercellular communication. The membrane of EV protects enclosed miRNAs from degradation and harbors molecules that allow specific targeting to recipient cells. Although several studies have investigated the miRNA content in milk EV from individual species, little is known about the evolutionary conserved nature of EV-associated miRNAs among different species. In this study, we profiled the miRNA content of purified EV from human and porcine milk. These data were compared to published studies on EV from human, cow, porcine and panda milk to assess the overlap in the top 20 most abundant miRNAs. Interestingly, several abundant miRNAs were shared between species (e.g. let-7 family members let-7a, let-7b, let-7f, and miR-148a). Moreover, these miRNAs have been implicated in immune-related functions and regulation of cell growth and signal transduction. The conservation of these miRNA among species, not only in their sequence homology , but also in their incorporation in milk EV of several species, suggests that they are evolutionarily selected to regulate cell function in the newborn.
2018-08-11 | GSE118409 | GEO
Project description:Background: Human milk extracellular vesicles (EVs) affect various cell types in the gastrointestinal tract, including T cells, and play a role in the development of the newborn’s immune system by delivering specific molecular cargo to target cells. Although maternal allergic sensitization alters the composition of milk, it is unknown whether this impacts the function of milk EVs. Therefore, we analyzed the T cell modulatory capacity and compared the protein and miRNA cargo of EVs from milk of allergic and non-allergic mothers. Methods: EVs were isolated from human milk from allergic and non-allergic donors by differential centrifugation, density gradient floatation and size exclusion chromatography. Functional modulation of primary human CD4+ T cells by EVs was assessed in vitro. Proteomic analysis and small RNA sequencing was performed on milk EVs to evaluate protein and miRNA abundance and to identify cellular targets of this EV cargo in relevant T cell signaling pathways. Results: T cell proliferation, activation and cytokine production were suppressed in the presence of milk EVs. Remarkably, milk EVs from allergic mothers modulated T cell activation to a lesser extent than EVs from non-allergic mothers. Integrative multi-omics analysis identified EV cargo of which the cellular targets could be linked to T cell activation-associated processes. Conclusions: Milk EVs from non-allergic mothers are stronger inhibitors of T cell activation compared to milk EVs from allergic mothers. This altered functionality might be linked to small changes in modulation of certain T cell signaling pathways.
2022-10-30 | GSE216498 | GEO
Project description:To further investigate the molecular mechanisms by which EVs mediated the abnormal localization of tight junction proteins and adherence junction protein, we performed miRNA microarray analysis of extracellular vesicles isolated from breast cancer cells. miRNA expression in extracellular vesicles was collected from MDA-MB-231-D3H1, MDA-MB-231-D3H2LN, BMD2a and BMD2b breast cancer cell lines.
2015-04-02 | E-GEOD-63445 | biostudies-arrayexpress
Project description:Background: There is some evidence demonstrating the effect of psychological interventions in improvements in health biological parameters. To best of our knowledge, no study had addressed the impact of any psychological intervention on extracellular vesicles. In addition, Mindfulness-Based Cognitive Therapy (MBCT) and Emotion Focused Therapy for Cancer Recovery (EFT-CR) in the group have never been explored regarding extracellular vesicles and the effectiveness of these was not compared yet.
Objectives:
1. To explore and compare the effect of MBCT and EFT-CR on biological parameters and psychological variables in distressed people who have had breast, prostate and colorectal cancer;
2. In addition, we will explore the acceptability through recruitment and retention rates of MBCT and EFT-CR in group and evaluate whether these interventions are appropriate for a larger clinical trial.
Methods: The design of this study is a parallel randomized controlled trial. Participants will be randomized into MBCT, EFT-CR or usual care. Outcome measures will be assessed before, at the end of the intervention (8 weeks) and follow-ups (24 and 52 weeks from the baseline moment).
Hypotheses: The researchers expected that both interventions will have an effect on extracellular vesicles and other study biomarkers as well as improvements in psychological outcomes, compared to treatment as usual (TAU) group. Regarding the comparative effectiveness, we did not have evidence to hypothesize which one of the interventions will be superior in both biological (extracellular vesicles) and psychological outcomes.
Contribution for practice: The results of this preliminary study would permit to know if there are benefits of these psychological interventions on changes in extracellular vesicles and on psychological outcomes related to health. In addition, this study will permit to determine the acceptability of conducting a larger randomized controlled trial.
| 2332322 | ecrin-mdr-crc