Multi-level proteome analysis reveals the region-specific components of the human milk fat globule membrane in China
Ontology highlight
ABSTRACT:
ORGANISM(S): Homo Sapiens
SUBMITTER: 
Wantao Ying
PROVIDER: PXD074070 | iProX | Wed Feb 04 00:00:00 GMT 2026
REPOSITORIES: iProX
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Project description:Intake of high-fat foods raises postprandial plasma triglycerides and inflammatory markers, which may depend on the type of fat ingested. Dairy products are commonly consumed, but not much is known about the impact of milk fat and the milk fat globule membrane on postprandial inflammation. Here, we aimed to study the effect of milk fat with and without milk fat globule membrane and vegetable blend fat on post-prandial inflammation, with a focus on blood monocyte gene expression. We performed a randomized, double-blind cross-over trial in middle-aged healthy male and female volunteers (BMI 22–27 kg/m2). The participants consumed a meal shake containing 95.5 g of fat consisting of either a vegetable fat blend (VEGE), anhydrous milk fat (AMF, without milk fat globule membrane), or cream (CREAM, containing milk fat globule membrane). Blood monocytes were collected at 0 and 6 hours postprandially and used for bulk RNA sequencing and ex vivo stimulation with LPS. Consumption of all three shakes significantly decreased the percentage of classical monocytes and increased the percentages of intermediate monocytes and non-classical monocytes. No differences in these measures were observed between shakes. Using a threshold of p < 0.01, 787 genes were differentially regulated postprandially between the three shakes. 89 genes were differentially regulated postprandially between AMF and VEGE, 373 genes between AMF and CREAM, and 667 genes between VEGE and CREAM, indicating that the effect of CREAM on monocyte gene expression was distinct from AMF and VEGE. Pathway analyses showed that VEGE significantly increased the expression of genes involved in inflammatory pathways, whereas this was less pronounced after AMF and not observed after CREAM. In addition, CREAM significantly down-regulated the expression of genes involved in energy metabolism-related pathways, such as glycolysis, TCA cycle, and oxidative phosphorylation, as well as HIF1 signaling. Compared to the consumption of an anhydrous milk fat without milk fat globule membrane and a vegetable fat blend, the consumption of cream with milk fat globule membrane downregulated inflammatory pathways in blood monocytes, thus suggesting a potential inflammation inhibitory effect of milk fat globule membrane.
2023-12-09 | GSE249787 | GEO
Project description:Milk-derived peptides and milk fat globule membrane (MFGM) have gained interest as health-promoting food ingredients. However, the mechanisms by which these nutraceuticals modulate the function of biological systems often remain unclear. We utilized Caenorhabditis elegans to elucidate how milk-derived Protein powders rich in MFGM, previously used in a clinical trial, affect the physiology of this model organism. Our results demonstrate that Protein powders do not affect lifespan but promote the fitness of the animals. Surprisingly, gene expression analysis revealed that Protein powders decrease the expression of genes functioning on innate immunity, which also translates into reduced survival on pathogenic bacteria. One of the innate immunity-associated genes showing reduced expression upon Protein powder supplementation is cpr-3, the homolog of human cathepsin B. Interestingly, knockdown of cpr-3 enhances fitness, but not in Protein powder-treated animals, suggesting that protein powders contribute to fitness by downregulating the expression of this gene. In summary, this research highlights the value of C. elegans in testing the biological activity of food supplements and nutraceuticals. Furthermore, this study should encourage investigations into whether milk-derived peptides and MFGM mediate their beneficial effects through the modulation of cathepsin B expression in humans.
2024-06-24 | GSE270138 | GEO
Project description:Camel milk is widely characterized with regard to caseins and whey proteins. However, in camelids, close to nothing is known about the Milk Fat Globule Membrane (MFGM), the membrane surrounding fat globules in milk. The purpose of this study was thus to identify MFGM proteins from Camelus dromedarius milk. Major MFGM proteins (namely, fatty acid synthase, xanthine oxidase, butyrophilin, lactadherin, and adipophilin) already evidenced in cow milk were identified in camel milk using mass spectrometry. In addition, a 1D-LC-MS/MS approach led us to identify 322 functional groups of proteins associated with the camel Milk Fat Globule Membrane. We hope that these findings will contribute to a better characterization of camel milk and to an improved understanding of lipid droplet formation in the mammary epithelial cell.
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Project description:The aim of this study was to investigate if milk fat globule membrane (MFGM) enclosing the dairy fat influence peripheral blood mononuclear cells (PBMC) gene expression. This study was a 8-week single-blind, randomized, controlled isocaloric trial with two parallel groups including overweight (mean BMI: 28) adult women (n=30). All subjects consumed 40 g dairy fat per day either as cream (MFGM diet) or as butter oil (control diet). MFGM diet and control diet showed differential responses in plasma cholesterol. Absolute differences in gene expression were calculated for each gene in each subject, comparing after with before the intervention. These absolute differences in gene expression were compared between intervention groups with T-test and with Significance Analysis of Microarrays (SAM). 19 genes were significantly different regulated by the two diets with a FDR of 23%. Most of thechanges in gene expression correlated with changes in blood lipids.
2015-08-01 | GSE60148 | GEO
Project description:The aim of this study was to investigate if milk fat globule membrane (MFGM) enclosing the dairy fat influence peripheral blood mononuclear cells (PBMC) gene expression. This study was a 8-week single-blind, randomized, controlled isocaloric trial with two parallel groups including overweight (mean BMI: 28) adult women (n=30). All subjects consumed 40 g dairy fat per day either as cream (MFGM diet) or as butter oil (control diet). MFGM diet and control diet showed differential responses in plasma cholesterol. Absolute differences in gene expression were calculated for each gene in each subject, comparing after with before the intervention. These absolute differences in gene expression were compared between intervention groups with T-test and with Significance Analysis of Microarrays (SAM). 19 genes were significantly different regulated by the two diets with a FDR of 23%. Most of thechanges in gene expression correlated with changes in blood lipids. Patients were examined in the morning after 12 h's fasting. Whole blood was obtained before (W0) and after completion (W8) of the dietary intervention for isolation of PBMCs and RNA extraction. From total RNA we prepared and hybridised biotinylated complementary RNA to GeneChip Human Gene 1.1 ST Arrays (Affymetrix Inc., Santa Clara, CA), and then washed, stained and scanned the slides using standardised protocols (Affymetrix Inc.). Signicance analysis of microarrays (SAM) was use to compare the difference in gene expression between groups.
2015-08-01 | E-GEOD-60148 | biostudies-arrayexpress
Project description:The 24h gene expression profile in the lactating mammary gland was demonstrated using the Human Ref-8 BeadChip array (Illumina, Inc). Of the 22,184 gene transcripts on the array, 14,070 genes were consistently expressed and represented the milk fat globule transcriptome. Milk protein genes were among the most highly expressed along with genes involved in the milk syntesis processes. Keywords: time course analysis
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Project description:The proteins of the milk fat globule membrane (MFGM) have a number of functions, such as the regulation of milk fat secretion and metabolism, the uptake and transportation of fatty acids in the intestine and potential protection from bacterial or viral infection. While the proteome of the MFGM in bovine milk has been extensively characterised, our knowledge of these proteins in buffalo milk is limited. In this study, a proteomic approach was used to characterise the proteome of the buffalo MFGM. Multiple extraction techniques were employed to increase the coverage of proteins identified, while label free relative quantitative liquid chromatography tandem mass spectrometry was used for comparison between the buffalo and bovine MFGM proteome. A total of 220 buffalo MFGM proteins and 234 bovine MFGM proteins were identified after being filtered from the initial dataset of 757 and 680 proteins respectively. Significantly greater amounts of xanthine oxidoreductase, platelet glycoprotein 4, heat shock cognate and calcineurin B homologous protein were identified per mass of buffalo MFGM protein extracted. The higher expression of xanthine oxidase in the MFGM of buffalo milk was confirmed by Western blot analysis and a heterogeneous distribution of this protein observed in situ on the surface of the MFGM. The high concentration of fat in buffalo milk, together with the differences in the MFGM proteome indicate differences in the nutritional profile, biological function, and potential ease of processing of buffalo and bovine milk products.
2017-05-19 | PXD005318 | Pride
Project description:Analysis of the milk fat globule proteome from mice with a mammary-specific knockout of Xanthine Oxidoreductase.
2017-05-31 | PXD003336 | Pride
Project description:Analysis of the milk fat globule membrane proteome from mice with genetic deletion of Perilipin 2 (Plin2/ADRP/ADPH)
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Project description: Not available
| S-EPMC9941230 | biostudies-literature