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Ma L, Huo Y, Tang Q, Wang X, Wang W, Wu D, Li Y, Chen L, Wang S, Zhu Y, Wang W, Liu Y, Xu N, Chen L, Yu G, Chen J. Human Breast Milk Exosomal miRNAs are Influenced by Premature Delivery and Affect Neurodevelopment. Mol Nutr Food Res 2024; 68:e2300113. [PMID: 38644336 DOI: 10.1002/mnfr.202300113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 02/27/2024] [Indexed: 04/23/2024]
Abstract
SCOPE This study investigates the exosomal microRNA (miRNA) profiles of term and preterm breast milk, including the most abundant and differentially expressed (DE) miRNAs, and their impact on neurodevelopment in infants. METHODS AND RESULTS Mature milk is collected from the mothers of term and preterm infants. Using high-throughput sequencing and subsequent data analysis, exosomal miRNA profiles of term and preterm human breast milk (HBM) are acquired and it is found that the let-7 and miR-148 families are the most abundant miRNAs. Additionally, 23 upregulated and 15 downregulated miRNAs are identified. MiR-3168 is the most upregulated miRNA in preterm HBM exosome, exhibiting targeting activity toward multiple genes involved in the SMAD and MAPK signaling pathways and playing a crucial role in early neurodevelopment. Additionally, the effects of miR-3168 on neurodevelopment is confirmed and it is determined that it is an essential factor in the differentiation of neural stem cells (NSCs). CONCLUSION This study demonstrates that miRNA expression in breast milk exosomes can be influenced by preterm delivery, thereby potentially impacting neurodevelopment in preterm infants.
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Affiliation(s)
- Ling Ma
- Department of Child Health Care, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200062, China
| | - Yanyan Huo
- Department of Child Health Care, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200062, China
| | - Qingyuan Tang
- Guangdong Provincial Key Laboratory of Brain Function and Disease, Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | - Xiulian Wang
- Department of Child Health Care, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200062, China
| | - Weiqin Wang
- Department of Child Health Care, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200062, China
| | - Dan Wu
- Department of Child Health Care, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200062, China
| | - Yicheng Li
- Department of Child Health Care, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200062, China
| | - Lingyan Chen
- Department of Child Health Care, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200062, China
- Department of Occupational Therapy Science, Nagasaki University Graduate School of Biomedical Science, 1-7-1 Sakamoto, Nagasaki, 852-8520, Japan
| | - Shasha Wang
- Department of Child Health Care, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200062, China
| | - Yiwen Zhu
- Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Wenli Wang
- Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yuan Liu
- Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Nanjie Xu
- Department of Anatomy and Physiology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Li Chen
- Department of Orthodontics, Shanghai Stomatological Hospital & School of Stomatology, Fudan University, Shanghai, 200001, China
| | - Guangjun Yu
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Jinjin Chen
- Department of Child Health Care, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200062, China
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Salehi M, Negahdari B, Mehryab F, Shekari F. Milk-Derived Extracellular Vesicles: Biomedical Applications, Current Challenges, and Future Perspectives. J Agric Food Chem 2024; 72:8304-8331. [PMID: 38587896 DOI: 10.1021/acs.jafc.3c07899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Extracellular vesicles (EVs) are nano to-micrometer-sized sacs that are released by almost all animal and plant cells and act as intercellular communicators by transferring their cargos between the source and target cells. As a safe and scalable alternative to conditioned medium-derived EVs, milk-derived EVs (miEVs) have recently gained a great deal of popularity. Numerous studies have shown that miEVs have intrinsic therapeutic actions that can treat diseases and enhance human health. Additionally, they can be used as natural drug carriers and novel classes of biomarkers. However, due to the complexity of the milk, the successful translation of miEVs from benchtop to bedside still faces several unfilled gaps, especially a lack of standardized protocols for the isolation of high-purity miEVs. In this work, by comprehensively reviewing the bovine miEVs studies, we provide an overview of current knowledge and research on miEVs while highlighting their challenges and enormous promise as a novel class of theranostics. It is hoped that this study will pave the way for clinical applications of miEVs by addressing their challenges and opportunities.
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Affiliation(s)
- Mahsa Salehi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran 14177-55469, Iran
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran 16635-148, Iran
| | - Babak Negahdari
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran 14177-55469, Iran
| | - Fatemeh Mehryab
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran 16635-148, Iran
- Department of Pharmaceutics and Pharmaceutical Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran 14155-6153, Iran
| | - Faezeh Shekari
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran 16635-148, Iran
- Advanced Therapy Medicinal Product Technology Development Center (ATMP-TDC), Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran 16635-148, Iran
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Wang K, Zhao X, Yang S, Qi X, Zang G, Li C, Li A, Chen B. Milk-derived exosome nanovesicles: recent progress and daunting hurdles. Crit Rev Food Sci Nutr 2024:1-16. [PMID: 38595109 DOI: 10.1080/10408398.2024.2338831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Raw milk is the foundation of quality and safety in the dairy industry, and improving milk source management is the fundamental guarantee. Milk-derived exosomes (MDEs) are nanoscale information transfer molecules secreted by mammary cells with unique content and high stability, which can be used not only as potential markers to analyze key traits of lactation, reproduction, nutrition and health of animals, but also help farm managers to take timely interventions to improve animal welfare, milk quality, and functional traits. Our review first outlines the latest advances in MDEs isolation and purification, compositional analysis and characterization tools. We then provide a comprehensive summary of recent applications of MDEs liquid biopsy in breed selection, disease prevention and control, and feeding management. Finally, we evaluate the impact of processing on the stability of MDEs to offer guidance for dairy production and storage. The limitations and challenges in the development and use of MDEs markers are also discussed. As a noninvasive marker with high sensitivity and specificity, the MDEs-mediated assay technology is expected to be a powerful tool for measuring cow health and raw milk quality, enabling dynamic and precise regulation of dairy cows and full traceability of raw milk.
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Affiliation(s)
- Kaili Wang
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, China
| | - Xu Zhao
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, China
| | - Sijia Yang
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, China
| | - Xiaoxi Qi
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, China
| | - Guofang Zang
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, China
| | - Chun Li
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, China
- Heilongjiang Green Food Research Institute, Harbin, China
| | - Aili Li
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, China
- Heilongjiang Green Food Research Institute, Harbin, China
| | - Bingcan Chen
- Department of Plant Sciences, North Dakota State University, Fargo, North Dakota, USA
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Yung C, Zhang Y, Kuhn M, Armstrong RJ, Olyaei A, Aloia M, Scottoline B, Andres SF. Neonatal enteroids absorb extracellular vesicles from human milk-fed infant digestive fluid. J Extracell Vesicles 2024; 13:e12422. [PMID: 38602306 PMCID: PMC11007820 DOI: 10.1002/jev2.12422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Accepted: 02/20/2024] [Indexed: 04/12/2024] Open
Abstract
Human milk contains extracellular vesicles (HMEVs). Pre-clinical models suggest that HMEVs may enhance intestinal function and limit inflammation; however, it is unknown if HMEVs or their cargo survive neonatal human digestion. This limits the ability to leverage HMEV cargo as additives to infant nutrition or as therapeutics. This study aimed to develop an EV isolation pipeline from small volumes of human milk and neonatal intestinal contents after milk feeding (digesta) to address the hypothesis that HMEVs survive in vivo neonatal digestion to be taken up intestinal epithelial cells (IECs). Digesta was collected from nasoduodenal sampling tubes or ostomies. EVs were isolated from raw and pasteurized human milk and digesta by density-gradient ultracentrifugation following two-step skimming, acid precipitation of caseins, and multi-step filtration. EVs were validated by electron microscopy, western blotting, nanoparticle tracking analysis, resistive pulse sensing, and super-resolution microscopy. EV uptake was tested in human neonatal enteroids. HMEVs and digesta EVs (dEVs) show typical EV morphology and are enriched in CD81 and CD9, but depleted of β-casein and lactalbumin. HMEV and some dEV fractions contain mammary gland-derived protein BTN1A1. Neonatal human enteroids rapidly take up dEVs in part via clathrin-mediated endocytosis. Our data suggest that EVs can be isolated from digestive fluid and that these dEVs can be absorbed by IECs.
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Affiliation(s)
- Claire Yung
- Department of PediatricsPediatric GI Division, School of Medicine, Oregon Health and Science UniversityPortlandOregonUSA
| | - Yang Zhang
- Department of PediatricsPediatric GI Division, School of Medicine, Oregon Health and Science UniversityPortlandOregonUSA
| | - Madeline Kuhn
- Department of PediatricsPediatric GI Division, School of Medicine, Oregon Health and Science UniversityPortlandOregonUSA
| | - Randall J. Armstrong
- Knight Cancer InstituteOregon Health and Science UniversityPortlandOregonUSA
- Cancer Early Detection Advanced Research (CEDAR)Oregon Health and Science UniversityPortlandOregonUSA
| | - Amy Olyaei
- Division of Neonatology, Department of PediatricsOregon Health and Science UniversityPortlandOregonUSA
| | - Molly Aloia
- Division of Neonatology, Department of PediatricsOregon Health and Science UniversityPortlandOregonUSA
| | - Brian Scottoline
- Department of PediatricsPediatric GI Division, School of Medicine, Oregon Health and Science UniversityPortlandOregonUSA
- Division of Neonatology, Department of PediatricsOregon Health and Science UniversityPortlandOregonUSA
| | - Sarah F. Andres
- Department of PediatricsPediatric GI Division, School of Medicine, Oregon Health and Science UniversityPortlandOregonUSA
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5
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Saenz-de-Juano MD, Silvestrelli G, Ulbrich SE. One-week storage of refrigerated bovine milk does not affect the size, concentration, or molecular properties of extracellular vesicles. J Dairy Sci 2024; 107:1164-1174. [PMID: 37709026 DOI: 10.3168/jds.2023-23726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 08/09/2023] [Indexed: 09/16/2023]
Abstract
Milk extracellular vesicles (EV) have gained extensive attention as promising diagnostic and therapeutic tools. Pre-analytical raw milk storage at low temperatures is an ordinary and usually necessary step after sample collection. It is known that direct freezing of unprocessed whole milk contaminates the native pool of milk EV with other cell structures. However, less evidence is available regarding prolonged cooling at 4°C. The current study assessed whether pre-analytical storage of bovine raw milk for several days affected EV isolation and further analysis. To confirm the independence from the health status of the mammary gland, we analyzed milk samples stored at 4°C for 1, 2, 3, and 7 d past collection, respectively, from 2 quarters of the same cow with different somatic cell counts (SCC). Seven days of refrigeration did not change the milk EV size, concentration, or morphology. We did not detect any changes in the EV cargo regarding the amount of protein and RNA, nor in the specific EV markers TSG101, CD9, and CD81 in milk from quarters with high and low SCC. Overall, we observed fewer CD81 and CD9 markers in quarters with high SCC. Moreover, we found no reduction in the mastitis-related miRNA bta-miR-223-3p, suggesting that refrigeration for several days up to 1 wk is a possible storage option compatible with further EV analyses. The findings of this study enhance the confidence that milk EV are highly stable in the raw milk matrix.
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Affiliation(s)
- Mara D Saenz-de-Juano
- ETH Zurich, Animal Physiology, Institute of Agricultural Sciences, 8092 Zurich, Switzerland
| | - Giulia Silvestrelli
- ETH Zurich, Animal Physiology, Institute of Agricultural Sciences, 8092 Zurich, Switzerland
| | - Susanne E Ulbrich
- ETH Zurich, Animal Physiology, Institute of Agricultural Sciences, 8092 Zurich, Switzerland.
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6
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Yung C, Zhang Y, Kuhn M, Armstrong RJ, Olyaei A, Aloia M, Scottoline B, Andres SF. Neonatal enteroids absorb extracellular vesicles from human milk-fed infant digestive fluid. bioRxiv 2024:2023.09.03.556067. [PMID: 38187651 PMCID: PMC10769189 DOI: 10.1101/2023.09.03.556067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
Human milk contains extracellular vesicles (HMEVs). Pre-clinical models suggest that HMEVs may enhance intestinal function and limit inflammation; however, it is unknown if HMEVs or their cargo survive neonatal human digestion. This limits the ability to leverage HMEV cargo as additives to infant nutrition or as therapeutics. This study aimed to develop an EV isolation pipeline from small volumes of human milk and neonatal intestinal contents after milk feeding (digesta) to address the hypothesis that HMEVs survive in vivo neonatal digestion to be taken up intestinal epithelial cells (IECs). Digesta was collected from nasoduodenal sampling tubes or ostomies. EVs were isolated from raw and pasteurized human milk and digesta by density-gradient ultracentrifugation following two-step skimming, acid precipitation of caseins, and multi-step filtration. EVs were validated by electron microscopy, western blotting, nanoparticle tracking analysis, resistive pulse sensing, and super-resolution microscopy. EV uptake was tested in human neonatal enteroids. HMEVs and digesta EVs (dEVs) show typical EV morphology and are enriched in CD81 and CD9, but depleted of β-casein and lactalbumin. HMEV and some dEV fractions contain mammary gland-derived protein BTN1A1. Neonatal human enteroids rapidly take up dEVs in part via clathrin-mediated endocytosis. Our data suggest that EVs can be isolated from digestive fluid and that these dEVs can be absorbed by IECs.
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7
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Colella AP, Prakash A, Miklavcic JJ. Homogenization and thermal processing reduce the concentration of extracellular vesicles in bovine milk. Food Sci Nutr 2024; 12:131-140. [PMID: 38268886 PMCID: PMC10804120 DOI: 10.1002/fsn3.3749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 07/19/2023] [Accepted: 09/20/2023] [Indexed: 01/26/2024] Open
Abstract
Extracellular vesicles (EVs) in bovine milk confer beneficial physiologic effects to consumers. Industrial processing treatments may affect the amount or bioactivity of EVs intrinsic to bovine milk. We investigated how the content and concentration of EVs were affected by homogenization and thermal processing of raw bovine milk. Raw milk was processed by homogenization, low-temperature (LT) heat, or pasteurization [high-temperature short-time (HTST) and ultra-high-temperature (UHT)] in a pilot processing facility. EVs were isolated from the raw and processed bovine milk using differential ultracentrifugation and quantified using a nanoparticle tracking analyzer. Bovine milk EVs were assessed for total miRNA and protein concentrations standardized to particle count using a fluorometric assay. There were 1.01 × 1010 (±3.30 × 109) EV particles per ml of bovine milk. All industrial processing treatments caused >60% decrease in EV concentration compared to the raw bovine milk. Homogenization and heat treatments independently and additively reduced the content of EVs in bovine milk. The averages of total miRNA/particle and total protein/particle concentrations were elevated threefold by low-temperature heat-processing treatment relative to HTST and UHT pasteurizations. The average diameter of EVs was reduced by 11%-16% by low temperature compared to raw milk (127 ± 13 nm). Homogenization and pasteurization indiscriminately reduce the EV concentration of bovine milk. Smaller EVs with higher protein content resist degradation when processing bovine milk at sub-pasteurization temperature. This new foundational knowledge may contribute to food product development on the preservation of EVs in processed dairy products, including bovine milk-based infant formulas that some newborns are dependent on for adequate growth and development.
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Affiliation(s)
- Anna P. Colella
- Schmid College of Science and TechnologyChapman UniversityOrangeCaliforniaUSA
| | - Anuradha Prakash
- Schmid College of Science and TechnologyChapman UniversityOrangeCaliforniaUSA
| | - John J. Miklavcic
- Schmid College of Science and TechnologyChapman UniversityOrangeCaliforniaUSA
- School of PharmacyChapman UniversityIrvineCaliforniaUSA
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Sukreet S, Braga CP, Adamec J, Cui J, Zempleni J. The absorption of bovine milk small extracellular vesicles largely depends on galectin 3 and galactose ligands in human intestinal cells and C57BL/6J mice. Am J Physiol Cell Physiol 2023; 325:C1421-C1430. [PMID: 37955122 PMCID: PMC10861145 DOI: 10.1152/ajpcell.00282.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 10/23/2023] [Accepted: 10/23/2023] [Indexed: 11/14/2023]
Abstract
Small extracellular vesicles in milk (sMEVs) have attracted attention in drug delivery and as bioactive food compounds. Previous studies implicate galactose residues on the sMEV surface in sMEV transport across intestinal and endothelial barriers in humans, but details of glycoprotein-dependent transport are unknown. We used a combination of cell biology and genetics protocols to identify glycoproteins on the sMEV surface that facilitate sMEV absorption. We identified 256 proteins on the bovine sMEVs surface by using LC-MS/MS, and bioinformatics analysis suggested that 42, 13, and 13 surface proteins were N-, O-, and 13 C-glycosylated, respectively. Lectin blots confirmed the presence of mannose, galactose, N-acetyl galactose, fucose, and neuraminate. When surface proteins were removed by various treatment with various proteases, sMEV uptake decreased by up to 58% and 67% in FHs-74 Int and Caco-2 cells, respectively, compared with controls (P < 0.05). When glycans were removed by treatment with various glycosidases, sMEV uptake decreased by up to 54% and 74% in FHs-74 Int and Caco-2 cells, respectively (P < 0.05). When galactose and N-acetyl galactosamine residues were blocked with agglutinins, sMEV uptake decreased by more than 50% in FHs-74 Int cells (P < 0.05). When bovine sMEVs were administered to Galectin-3 knockout mice by oral gavage, hepatic sMEV accumulation decreased by 56% compared with wild-type mice (P < 0.05), consistent with a role of β-galactoside glycan structures in the absorption of sMEVs. We conclude that sMEVs are decorated with glycoproteins, and Galectin-3 and its galactose ligands are particularly important for sMEV absorption.NEW & NOTEWORTHY This is the first paper to assess the role of unique glycans and their Galectin-3 receptor in the transport and distribution of small extracellular vesicles ("exosomes") from milk in mammals. The research assessed milk exosome transport and distribution by using multiple approaches and platforms including cell cultures, various exosome labels, knockout and mutant mice, enzymatic removal of surface proteins and glycans, and lectin blocking of glycans.
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Affiliation(s)
- Sonal Sukreet
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, United States
| | - Camila Pereira Braga
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, United States
| | - Jiri Adamec
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, United States
| | - Juan Cui
- School of Computing, University of Nebraska-Lincoln, Lincoln, Nebraska, United States
| | - Janos Zempleni
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, United States
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Słyk-Gulewska P, Kondracka A, Kwaśniewska A. MicroRNA as a new bioactive component in breast milk. Noncoding RNA Res 2023; 8:520-526. [PMID: 37520770 PMCID: PMC10371784 DOI: 10.1016/j.ncrna.2023.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 06/24/2023] [Accepted: 06/25/2023] [Indexed: 08/01/2023] Open
Abstract
Breast milk is a complex and multifaceted fluid that plays a critical role in the development of infants. It is composed of water, carbohydrates, fats, proteins, vitamins, and minerals, as well as numerous bioactive compounds such as hormones, oligosaccharides, and immune proteins. Additionally, breast milk contains microRNAs, which have been found to regulate gene expression and impact various aspects of infant development. This text provides an overview of the components of human breast milk and their importance in infant development, with a focus on microRNAs. MicroRNAs are short RNA sequences that regulate gene expression posttranscriptionally, and they play an important role in shaping the mechanisms of immunity, protecting against oxidative stress, and promoting thermogenesis. The composition of breast milk can vary in the same mother between different feedings, as it changes in response to various factors such as the infant's age, feeding frequency and duration, time of day, and maternal health status. Despite the variations in breast milk composition, it still provides complete nutrition for the infant. The unique microRNA profiles in breast milk and how they are affected by various factors can have significant implications for disease prevention and treatment. Further research is needed to better understand the functions of individual microRNA molecules and their potential therapeutic applications.
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Xu Y, Yang D, Wang L, Król E, Mazidi M, Li L, Huang Y, Niu C, Liu X, Lam SM, Shui G, Douglas A, Speakman JR. Maternal High Fat Diet in Lactation Impacts Hypothalamic Neurogenesis and Neurotrophic Development, Leading to Later Life Susceptibility to Obesity in Male but Not Female Mice. Adv Sci (Weinh) 2023; 10:e2305472. [PMID: 37867217 PMCID: PMC10724448 DOI: 10.1002/advs.202305472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Indexed: 10/24/2023]
Abstract
Early life nutrition can reprogram development and exert long-term consequences on body weight regulation. In mice, maternal high-fat diet (HFD) during lactation predisposed male but not female offspring to diet-induced obesity when adult. Molecular and cellular changes in the hypothalamus at important time points are examined in the early postnatal life in relation to maternal diet and demonstrated sex-differential hypothalamic reprogramming. Maternal HFD in lactation decreased the neurotropic development of neurons formed at the embryo stage (e12.5) and impaired early postnatal neurogenesis in the hypothalamic regions of both males and females. Males show a larger increased ratio of Neuropeptide Y (NPY) to Pro-opiomelanocortin (POMC) neurons in early postnatal neurogenesis, in response to maternal HFD, setting an obese tone for male offspring. These data provide insights into the mechanisms by which hypothalamic reprograming by early life overnutrition contributes to the sex-dependent susceptibility to obesity in adult life in mice.
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Affiliation(s)
- Yanchao Xu
- Shenzhen key laboratory for metabolic healthCenter for Energy Metabolism and ReproductionShenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen518055P. R. China
- State Key Laboratory of Molecular Developmental BiologyInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing100101P. R. China
| | - Dengbao Yang
- State Key Laboratory of Molecular Developmental BiologyInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing100101P. R. China
| | - Lu Wang
- State Key Laboratory of Molecular Developmental BiologyInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing100101P. R. China
- Institute of Biological and Environmental SciencesUniversity of AberdeenAberdeenScotlandAB24 2TZUK
- University of Chinese Academy of SciencesShijingshanBeijing100049P. R. China
- School of PharmacyKey Laboratory of Molecular Pharmacology and Drug EvaluationMinistry of EducationYantai UniversityYantai264005P. R. China
| | - Elżbieta Król
- Institute of Biological and Environmental SciencesUniversity of AberdeenAberdeenScotlandAB24 2TZUK
| | - Mohsen Mazidi
- State Key Laboratory of Molecular Developmental BiologyInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing100101P. R. China
- University of Chinese Academy of SciencesShijingshanBeijing100049P. R. China
| | - Li Li
- State Key Laboratory of Molecular Developmental BiologyInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing100101P. R. China
- University of Chinese Academy of SciencesShijingshanBeijing100049P. R. China
| | - Yi Huang
- State Key Laboratory of Molecular Developmental BiologyInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing100101P. R. China
| | - Chaoqun Niu
- Shenzhen key laboratory for metabolic healthCenter for Energy Metabolism and ReproductionShenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen518055P. R. China
- State Key Laboratory of Molecular Developmental BiologyInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing100101P. R. China
| | - Xue Liu
- State Key Laboratory of Molecular Developmental BiologyInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing100101P. R. China
| | - Sin Man Lam
- State Key Laboratory of Molecular Developmental BiologyInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing100101P. R. China
| | - Guanghou Shui
- State Key Laboratory of Molecular Developmental BiologyInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing100101P. R. China
| | - Alex Douglas
- Institute of Biological and Environmental SciencesUniversity of AberdeenAberdeenScotlandAB24 2TZUK
| | - John R. Speakman
- Shenzhen key laboratory for metabolic healthCenter for Energy Metabolism and ReproductionShenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen518055P. R. China
- State Key Laboratory of Molecular Developmental BiologyInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing100101P. R. China
- Institute of Biological and Environmental SciencesUniversity of AberdeenAberdeenScotlandAB24 2TZUK
- China medical universityShenyang110000P. R. China
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11
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Kaeffer B. Human Breast Milk miRNAs: Their Diversity and Potential for Preventive Strategies in Nutritional Therapy. Int J Mol Sci 2023; 24:16106. [PMID: 38003296 PMCID: PMC10671413 DOI: 10.3390/ijms242216106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 11/02/2023] [Accepted: 11/06/2023] [Indexed: 11/26/2023] Open
Abstract
The endogenous miRNAs of breast milk are the products of more than 1000 nonprotein-coding genes, giving rise to mature small regulatory molecules of 19-25 nucleotides. They are incorporated in macromolecular complexes, loaded on Argonaute proteins, sequestrated in exosomes and lipid complexes, or present in exfoliated cells of epithelial, endothelial, or immune origins. Their expression is dependent on the stage of lactation; however, their detection depends on progress in RNA sequencing and the reappraisal of the definition of small RNAs. Some miRNAs from plants are detected in breast milk, opening the possibility of the stimulation of immune cells from the allergy repertoire. Each miRNA harbors a seeding sequence, which targets mRNAs, gene promoters, or long noncoding RNAs. Their activities depend on their bioavailability. Efficient doses of miRNAs are estimated to be roughly 100 molecules in the cytoplasm of target cells from in vitro and in vivo experiments. Each miRNA is included in networks of stimulation/inhibition/sequestration, driving the expression of cellular phenotypes. Three types of stress applied during lactation to manipulate miRNA supply were explored using rodent offspring: a foster mother, a cafeteria diet, and early weaning. This review presents the main mature miRNAs described from current mothers' cohorts and their bioavailability in experimental models as well as studies assessing the potential of miR-26 or miR-320 miRNA families to alter offspring phenotypes.
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Affiliation(s)
- Bertrand Kaeffer
- Nantes Université, INRAE, UMR 1280, PhAN, F-44000 Nantes, France
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Kim NH, Kim J, Lee JY, Bae HA, Kim CY. Application of Milk Exosomes for Musculoskeletal Health: Talking Points in Recent Outcomes. Nutrients 2023; 15:4645. [PMID: 37960298 PMCID: PMC10647311 DOI: 10.3390/nu15214645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 10/25/2023] [Accepted: 10/30/2023] [Indexed: 11/15/2023] Open
Abstract
Milk is a nutrient-rich food source, and among the various milks, breast milk is a nutrient source provided by mothers to newborns in many mammals. Exosomes are nano-sized membranous extracellular vesicles that play important roles in cell-to-cell communication. Exosomes originate from endogenous synthesis and dietary sources such as milk. Discovered through electron microscopy as floating vesicles, the existence of exosomes in human milk was confirmed owing to a density between 1.10 and 1.18 g/mL in a sucrose gradient corresponding to the known density of exosomes and detection of MHC classes I and II, CD63, CD81, and CD86 on the vesicles. To date, milk exosomes have been used for treating many diseases, including cancers, and are widely proposed as promising carriers for the delivery of chemotherapeutic agents. However, few studies on milk exosomes focus on geriatric health, especially sarcopenia and osteoporosis related to bone and muscle. Therefore, the present study focused on milk exosomes and their cargoes, which are potential candidates for dietary supplements, and when combined with drugs, they can be effective in treating musculoskeletal diseases. In this review, we introduce the basic concepts, including the definition, various sources, and cargoes of milk exosomes, and exosome isolation and characterization methods. Additionally, we review recent literature on the musculoskeletal system and milk exosomes. Since inflammation and oxidative stress underly musculoskeletal disorders, studies reporting the antioxidant and anti-inflammatory properties of milk exosomes are also summarized. Finally, the therapeutic potential of milk exosomes in targeting muscle and bone health is proposed.
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Affiliation(s)
- Na-Hyung Kim
- Research Institute of Human Ecology, Yeungnam University, Gyeongsan 38541, Gyeongbuk, Republic of Korea; (N.-H.K.); (J.K.); (J.-Y.L.); (H.-A.B.)
- Department of Food and Nutrition, Yeungnam University, Gyeongsan 38541, Gyeongbuk, Republic of Korea
| | - Juhae Kim
- Research Institute of Human Ecology, Yeungnam University, Gyeongsan 38541, Gyeongbuk, Republic of Korea; (N.-H.K.); (J.K.); (J.-Y.L.); (H.-A.B.)
| | - Joo-Yeon Lee
- Research Institute of Human Ecology, Yeungnam University, Gyeongsan 38541, Gyeongbuk, Republic of Korea; (N.-H.K.); (J.K.); (J.-Y.L.); (H.-A.B.)
- Department of Food and Nutrition, Yeungnam University, Gyeongsan 38541, Gyeongbuk, Republic of Korea
| | - Hyeon-A Bae
- Research Institute of Human Ecology, Yeungnam University, Gyeongsan 38541, Gyeongbuk, Republic of Korea; (N.-H.K.); (J.K.); (J.-Y.L.); (H.-A.B.)
- Department of Food and Nutrition, Yeungnam University, Gyeongsan 38541, Gyeongbuk, Republic of Korea
| | - Choon Young Kim
- Research Institute of Human Ecology, Yeungnam University, Gyeongsan 38541, Gyeongbuk, Republic of Korea; (N.-H.K.); (J.K.); (J.-Y.L.); (H.-A.B.)
- Department of Food and Nutrition, Yeungnam University, Gyeongsan 38541, Gyeongbuk, Republic of Korea
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13
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Zhang Y, Lin Y, He J, Song S, Luo Y, Lu Y, Chen S, Wang Q, Li Y, Ren F, Guo H. Milk-derived small extracellular vesicles: a new perspective on dairy nutrition. Crit Rev Food Sci Nutr 2023:1-22. [PMID: 37819268 DOI: 10.1080/10408398.2023.2263573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
Milk contains bioactive compounds that have multiple essential benefits. Milk-derived small extracellular vesicles (M-sEVs) have emerged as novel bioactive milk components with various beneficial biological functions and broad applications. The M-sEVs from different mammalian sources have similar composition and bioactive functions. The digestive stability and biocompatibility of the M-sEVs provide a good foundation for their physiological functions. Evidence suggests that M-sEVs promote intestinal, immune, bone, neural, liver, and heart health and show therapeutic effects against cancer, indicating their potential for use in functional foods. In addition, M-sEVs can be developed as natural delivery carriers owing to their superior structural characteristics. Further studies are needed to elucidate the relationship between the specific components and functions of M-sEVs, standardize their extraction processes, and refine relevant clinical trials to advance the future applications of M-sEVs. This review summarizes the structure and composition of M-sEVs isolated from different milk sources and discusses several common extraction methods. Since the introduction of M-sEVs for digestion and absorption, studies have been conducted on their biological functions. Furthermore, we outline the theoretical industrial production route, potential application scenarios of M-sEVs, and the future perspectives of M-sEV research.
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Affiliation(s)
- Yuning Zhang
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
| | - Yingying Lin
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, PR China
- National Center of Technology Innovation for Dairy, Hohhot, PR China
| | - Jian He
- National Center of Technology Innovation for Dairy, Hohhot, PR China
| | - Sijia Song
- Food Laboratory of Zhongyuan, Luohe, PR China
| | - Yujia Luo
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
| | - Yao Lu
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
| | | | - Qingyu Wang
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, PR China
| | - Yixuan Li
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, PR China
| | - Fazheng Ren
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, PR China
| | - Huiyuan Guo
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, PR China
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14
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Turner NP, Abeysinghe P, Sadowski P, Mitchell MD. Omics Analysis of Extracellular Vesicles Recovered from Infant Formula Products and Milk: Towards Personalized Infant Nutrition. Mol Nutr Food Res 2023; 67:e2300404. [PMID: 37562982 DOI: 10.1002/mnfr.202300404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 07/26/2023] [Indexed: 08/12/2023]
Abstract
SCOPE Milk and milk products such as infant formula (IF) play a fundamental role in serving the nutritional needs of the developing infant. Extracellular vesicles (EVs) in human (HM) and cow milk (CM) contain molecular cargo such as proteins and micro(mi)RNAs that serve as functional messengers between cells and may be of importance to infant health. Most IF is derived from a CM protein base, however differences between HM and CM EV molecular cargo have not been extensively studied. METHODS AND RESULTS This study develops a pipeline using advanced proteomics and transcriptomics to enable cross-species comparison of milk and IF EVs. The number of nanoparticles per mL of IF is significantly reduced compared to unprocessed CM. 130 proteins and 514 miRNAs are differentially abundant between HM and CM EVs. While 90% of CM EV miRNAs are also identified in IF EVs, only 20% of CM EV proteins are identified in IF EVs. CONCLUSIONS This workflow identifies key species-specific differences that can be used to optimize IF recipes and enhance infant nutrition. Improved preservation of EV functional molecular cargo in IF products is of critical importance to retaining molecular drivers of good health and should be the focus of future investigations.
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Affiliation(s)
- Natalie P Turner
- Centre for Children's Health Research (CCHR), Queensland University of Technology (QUT), 62 Graham Street, South Brisbane, QLD, 4101, Australia
| | - Pevindu Abeysinghe
- Centre for Children's Health Research (CCHR), Queensland University of Technology (QUT), 62 Graham Street, South Brisbane, QLD, 4101, Australia
| | - Pawel Sadowski
- Central Analytical Research Facility (CARF), QUT, Gardens Point Campus, 2 George Street, Brisbane City, QLD, 4000, Australia
| | - Murray D Mitchell
- Centre for Children's Health Research (CCHR), Queensland University of Technology (QUT), 62 Graham Street, South Brisbane, QLD, 4101, Australia
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Ngu A, Munir J, Zempleni J. Milk-borne small extracellular vesicles: kinetics and mechanisms of transport, distribution, and elimination. Extracell Vesicles Circ Nucl Acids 2023; 4:339-346. [PMID: 37829291 PMCID: PMC10568984 DOI: 10.20517/evcna.2023.25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/14/2023]
Abstract
Small extracellular vesicles (sEVs) in milk have the qualities desired for delivering therapeutics to diseased tissues. The production of bovine milk sEVs is scalable (1021 annually per cow), and they resist degradation in the gastrointestinal tract. Most cells studied to date internalize milk sEVs by a saturable process that follows Michaelis-Menten kinetics. The bioavailability of oral milk sEVs is approximately 50%. In addition to crossing the intestinal mucosa, milk sEVs also cross barriers such as the placenta and blood-brain barrier, thereby enabling the delivery of therapeutics to hard-to-reach tissues. In time course studies, levels of milk sEVs peaked in the intestinal mucosa, plasma, and urine approximately 6 h and returned to baseline 24 h after oral gavage in mice. In tissues, milk sEV levels peaked 12 h after gavage. Milk sEVs appear to be biologically safe. No cytokine storm was observed when milk sEVs were added to cultures of human peripheral blood mononuclear cells or administered orally to rats. Liver and kidney function and erythropoiesis were not impaired when milk sEVs were administered to rats by oral gavage for up to 15 days. Protocols for loading milk sEVs with therapeutic cargo are available. Currently, the use of milk sEVs (and other nanoparticles) in the delivery of therapeutics is limited by their rapid elimination through internalization by macrophages and lysosomal degradation in target cells. This mini review discusses the current knowledge base of sEV tissue distribution, excretion in feces and urine, internalization by macrophages, and degradation in lysosomes.
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Affiliation(s)
- Alice Ngu
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE 68583-0806, USA
| | - Javaria Munir
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE 68583-0806, USA
| | - Janos Zempleni
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE 68583-0806, USA
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Zheng Z, Mo J, Lin F, Wang J, Chen J, Luo H, Liu Y, Su C, Gu X, Xiong F, Zha L. Milk Exosomes from Gestational Diabetes Mellitus (GDM) and Healthy Parturient Exhibit Differential miRNAs Profiles and Distinct Regulatory Bioactivity on Hepatocyte Proliferation. Mol Nutr Food Res 2023; 67:e2300005. [PMID: 37357556 DOI: 10.1002/mnfr.202300005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 03/27/2023] [Indexed: 06/27/2023]
Abstract
SCOPE Exosomes, a novel type of bioactive component in human milk (HM), affect infant development, growth, and health. Recent studies indicate that HM exosomes and miRNAs relate to gestational diabetes mellitus (GDM). However, the miRNAs profiles and functionalities of HM exosomes from GDM parturient remain unclear. This study aims to compare the differential miRNAs in HM exosomes from GDM and healthy parturient, and investigate the HM exosomes bioactivities in regulating hepatocyte proliferation and insulin sensitivity. METHODS AND RESULTS This study extracted HM exosomes from GDM (GDM-EXO) and healthy (NOR-EXO) parturient by ultracentrifugation, high-throughput sequenced and compared the exosomal miRNAs profiles, and explored the regulatory bioactivities on hepatocyte proliferation in HepG2 cells and Balb/c mice. As compared to NOR-EXO, GDM-EXO has similar morphology, size, concentration, and exosome-specific markers (CD9 and TSG101) expression. GDM-EXO and NOR-EXO specifically harbor 1299 and 8 miRNAs, respectively. Moreover, GDM-EXO had 176 upregulated and 47 downregulated miRNAs compared with NOR-EXO. Both GDM-EXO and NOR-EXO were absorbed in cultured HepG2 hepatocytes and mice liver. GDM-EXO inhibited hepatocytes proliferation by downregulating mammalian target of rapamycin (mTOR) possibly via exosomal miR-101-3p delivery. CONCLUSION HM exosomes from GDM and healthy parturient exhibit differential miRNAs profiles and distinct regulatory bioactivity on hepatocyte proliferation.
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Affiliation(s)
- Zhongdaixi Zheng
- Department of Nutrition and Food Hygiene, School of Public Health, National Medical Products Administration (NMPA) Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Southern Medical University, Guangzhou, Guangdong, 510515, P. R. China
- Department of Environmental Health, School of Public Health, National Medical Products Administration (NMPA) Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Southern Medical University, Guangzhou, Guangdong, 510515, P. R. China
| | - Jiaqi Mo
- Department of Nutrition and Food Hygiene, School of Public Health, National Medical Products Administration (NMPA) Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Southern Medical University, Guangzhou, Guangdong, 510515, P. R. China
| | - Fengjuan Lin
- Department of Nutrition and Food Hygiene, School of Public Health, National Medical Products Administration (NMPA) Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Southern Medical University, Guangzhou, Guangdong, 510515, P. R. China
| | - Jiexian Wang
- Department of Nutrition and Food Hygiene, School of Public Health, National Medical Products Administration (NMPA) Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Southern Medical University, Guangzhou, Guangdong, 510515, P. R. China
| | - Junbin Chen
- Department of Nutrition and Food Hygiene, School of Public Health, National Medical Products Administration (NMPA) Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Southern Medical University, Guangzhou, Guangdong, 510515, P. R. China
| | - Huiyu Luo
- Department of Nutrition and Food Hygiene, School of Public Health, National Medical Products Administration (NMPA) Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Southern Medical University, Guangzhou, Guangdong, 510515, P. R. China
| | - Yuguo Liu
- Department of Nutrition and Food Hygiene, School of Public Health, National Medical Products Administration (NMPA) Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Southern Medical University, Guangzhou, Guangdong, 510515, P. R. China
| | - Chuhong Su
- Department of Nutrition and Food Hygiene, School of Public Health, National Medical Products Administration (NMPA) Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Southern Medical University, Guangzhou, Guangdong, 510515, P. R. China
| | - Xiangfu Gu
- Department of Nutrition and Food Hygiene, School of Public Health, National Medical Products Administration (NMPA) Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Southern Medical University, Guangzhou, Guangdong, 510515, P. R. China
| | - Fei Xiong
- Department of Nutrition and Food Hygiene, School of Public Health, National Medical Products Administration (NMPA) Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Southern Medical University, Guangzhou, Guangdong, 510515, P. R. China
| | - Longying Zha
- Department of Nutrition and Food Hygiene, School of Public Health, National Medical Products Administration (NMPA) Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Southern Medical University, Guangzhou, Guangdong, 510515, P. R. China
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Holzhausen EA, Kupsco A, Chalifour BN, Patterson WB, Schmidt KA, Mokhtari P, Baccarelli AA, Goran MI, Alderete TL. Influence of technical and maternal-infant factors on the measurement and expression of extracellular miRNA in human milk. Front Immunol 2023; 14:1151870. [PMID: 37492577 PMCID: PMC10363855 DOI: 10.3389/fimmu.2023.1151870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 06/09/2023] [Indexed: 07/27/2023] Open
Abstract
Breast milk contains thousands of bioactive compounds including extracellular vesicle microRNAs (EV-miRNAs), which may regulate pathways such as infant immune system development and metabolism. We examined the associations between the expression of EV-miRNAs and laboratory variables (i.e., batch effects, sample characteristics), sequencing quality indicators, and maternal-infant characteristics. The study included 109 Latino mother-infant dyads from the Southern California Mother's Milk Study. Mothers were age 28.0 ± 5.6 and 23-46 days postpartum. We used principal components analysis to evaluate whether EV-miRNA expression was associated with factors of interest. Then, we used linear models to estimate relationships between these factors and specific EV-miRNA counts and analyzed functional pathways associated with those EV-miRNAs. Finally, we explored which maternal-infant characteristics predicted sequencing quality indicators. Sequencing quality indicators, predominant breastfeeding, and breastfeedings/day were associated with EV-miRNA principal components. Maternal body mass index and breast milk collection timing predicted proportion of unmapped reads. Expression of 2 EV-miRNAs were associated with days postpartum, 23 EV-miRNAs were associated with breast milk collection time, 23 EV-miRNAs were associated with predominant breastfeeding, and 38 EV-miRNAs were associated with breastfeedings/day. These EV-miRNAs were associated with pathways including Hippo signaling pathway and ECM-receptor interaction, among others. This study identifies several important factors that may contribute to breast milk EV-miRNA expression. Future studies should consider these findings in the design and analysis of breast milk miRNA research.
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Affiliation(s)
- Elizabeth A. Holzhausen
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
| | - Allison Kupsco
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, United States
| | - Bridget N. Chalifour
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
| | - William B. Patterson
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
| | - Kelsey A. Schmidt
- Department of Pediatrics, Children’s Hospital Los Angeles, Los Angeles, CA, United States
| | - Pari Mokhtari
- Department of Pediatrics, Children’s Hospital Los Angeles, Los Angeles, CA, United States
| | - Andrea A. Baccarelli
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, United States
| | - Michael I. Goran
- Department of Pediatrics, Children’s Hospital Los Angeles, Los Angeles, CA, United States
| | - Tanya L. Alderete
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
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Franzoni G, Mecocci S, De Ciucis CG, Mura L, Dell’Anno F, Zinellu S, Fruscione F, De Paolis L, Carta T, Anfossi AG, Dei Guidici S, Chiaradia E, Pascucci L, Oggiano A, Cappelli K, Razzuoli E. Goat milk extracellular vesicles: immuno-modulation effects on porcine monocyte-derived macrophages in vitro. Front Immunol 2023; 14:1209898. [PMID: 37469517 PMCID: PMC10352104 DOI: 10.3389/fimmu.2023.1209898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 05/26/2023] [Indexed: 07/21/2023] Open
Abstract
Introduction Extracellular vesicles (EVs) are nanometric-membrane-bound sub-cellular structures, which can be recovered from milk. Milk EVs have drawn increasing interest due to their potential biomedical applications, therefore it is important to investigate their impact on key immune cells, such as macrophages. Methods In this work, the immunomodulatory effects of goat milk EVs on untreated (moMФ) and classically activated (moM1) porcine monocyte-derived macrophages were investigated using flow cytometry, ELISA, and gene expression assays. Results These particles were efficiently internalized by macrophages and high doses (60 mg protein weight) triggered the upregulation of MHC I and MHC II DR on moMФ, but not on moM1. In moMФ, exposure to low doses (0.6 mg) of mEVs enhanced the gene expression of IL10, EBI3, and IFNB, whereas high doses up-regulated several pro-inflammatory cytokines. These nanosized structures slightly modulated cytokine gene expression on moM1. Accordingly, the cytokine (protein) contents in culture supernatants of moMФ were mildly affected by exposure to low doses of mEVs, whereas high doses promoted the increased release of TNF, IL-8, IL-1a, IL-1b, IL-1Ra, IL-6, IL-10, and IL-12. The cytokines content in moM1 supernatants was not critically affected. Discussion Overall, our data support a clinical application of these molecules: they polarized macrophages toward an M1-like phenotype, but this activation seemed to be controlled, to prevent potentially pathological over-reaction to stressors.
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Affiliation(s)
- Giulia Franzoni
- Department of Animal Health, Istituto Zooprofilattico Sperimentale della Sardegna, Sassari, Italy
| | - Samanta Mecocci
- Department of Veterinary Medicine, University of Perugia, Perugia, Italy
| | - Chiara Grazia De Ciucis
- National Reference Center of Veterinary and Comparative Oncology (CEROVEC), Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d’Aosta, Genova, Italy
| | - Lorena Mura
- Department of Animal Health, Istituto Zooprofilattico Sperimentale della Sardegna, Sassari, Italy
- Department of Biomedical Sciences, School of Medicine, University of Sassari, Sassari, Italy
| | - Filippo Dell’Anno
- National Reference Center of Veterinary and Comparative Oncology (CEROVEC), Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d’Aosta, Genova, Italy
| | - Susanna Zinellu
- Department of Animal Health, Istituto Zooprofilattico Sperimentale della Sardegna, Sassari, Italy
| | - Floriana Fruscione
- National Reference Center of Veterinary and Comparative Oncology (CEROVEC), Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d’Aosta, Genova, Italy
| | - Livia De Paolis
- National Reference Center of Veterinary and Comparative Oncology (CEROVEC), Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d’Aosta, Genova, Italy
| | - Tania Carta
- Department of Animal Health, Istituto Zooprofilattico Sperimentale della Sardegna, Sassari, Italy
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Antonio G. Anfossi
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Silvia Dei Guidici
- Department of Animal Health, Istituto Zooprofilattico Sperimentale della Sardegna, Sassari, Italy
| | | | - Luisa Pascucci
- Department of Veterinary Medicine, University of Perugia, Perugia, Italy
| | - Annalisa Oggiano
- Department of Animal Health, Istituto Zooprofilattico Sperimentale della Sardegna, Sassari, Italy
| | - Katia Cappelli
- Department of Veterinary Medicine, University of Perugia, Perugia, Italy
| | - Elisabetta Razzuoli
- National Reference Center of Veterinary and Comparative Oncology (CEROVEC), Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d’Aosta, Genova, Italy
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Khanam A, Ngu A, Zempleni J. Bioavailability of orally administered small extracellular vesicles from bovine milk in C57BL/6J mice. Int J Pharm 2023; 639:122974. [PMID: 37105241 PMCID: PMC10175213 DOI: 10.1016/j.ijpharm.2023.122974] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 04/05/2023] [Accepted: 04/16/2023] [Indexed: 04/29/2023]
Abstract
Small extracellular vesicles (sMEVs) from bovine milk are studied for delivering therapeutics. Here, we estimated sMEV bioavailability of an oral dose of sMEVs. Bovine sMEVs were labeled covalently with HiLyteTM 750 (MEV-750) and administered by oral gavage to C57BL/6J mice. Plasma, urine, feces, and tissues were harvested at timed intervals for up to 24 h and fluorescence was assessed. Fecal excretion amounted to approximately 55% of the oral MEV-750 dose in males and females. The levels of MEV-750 peaked in the intestinal mucosa and plasma approximately 6 h after oral gavage and returned to baseline at time point 24 h. MEV-750 were detectable in peripheral tissues approximately 12 h after gavage. MEV-750 excretion in urine peaked approximately 6 h after oral gavage and returned to background levels after 24 h. Analysis by size exclusion chromatography suggested that HiLyteTM detached from sMEVs in artificial gastric fluid but not in plasma, i.e., HiLyteTM allows to estimate sMEV bioavailability with comparably high confidence. We conclude that the apparent bioavailability of sMEVs is 45%, and sMEVs are transported to peripheral tissues in C57BL/6J mice; excretion in feces and urine are the main routes of sMEV elimination.
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Affiliation(s)
- Afsana Khanam
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, 316 Leverton Hall, Lincoln, NE, 68583-0806, USA
| | - Alice Ngu
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, 316 Leverton Hall, Lincoln, NE, 68583-0806, USA
| | - Janos Zempleni
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, 316 Leverton Hall, Lincoln, NE, 68583-0806, USA.
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Fratantonio D, Munir J, Shu J, Howard K, Baier SR, Cui J, Zempleni J. The RNA cargo in small extracellular vesicles from chicken eggs is bioactive in C57BL/6 J mice and human peripheral blood mononuclear cells ex vivo. Front Nutr 2023; 10:1162679. [PMID: 37305095 PMCID: PMC10249500 DOI: 10.3389/fnut.2023.1162679] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 03/28/2023] [Indexed: 06/13/2023] Open
Abstract
Small extracellular vesicles (sEVs) and their RNA cargo in milk are bioavailable in humans, pigs, and mice, and their dietary depletion and supplementation elicits phenotypes. Little is known about the content and biological activity of sEVs in foods of animal origin other than milk. Here we tested the hypothesis that sEVs in chicken eggs (Gallus gallus) facilitate the transfer of RNA cargo from an avian species to humans and mice, and their dietary depletion elicits phenotypes. sEVs were purified from raw egg yolk by ultracentrifugation and authenticated by transmission electron microscopy, nano-tracking device, and immunoblots. The miRNA profile was assessed by RNA-sequencing. Bioavailability of these miRNAs in humans was assessed by egg feeding study in adults, and by culturing human peripheral blood mononuclear cells (PBMCs) with fluorophore-labeled egg sEVs ex vivo. To further assess bioavailability, fluorophore-labeled miRNAs, encapsulated in egg sEVs, were administered to C57BL/6 J mice by oral gavage. Phenotypes of sEV RNA cargo depletion were assessed by feeding egg sEV and RNA-defined diets to mice and using spatial learning and memory in the Barnes and water mazes as experimental readouts. Egg yolk contained 6.30 × 1010 ± 6.06 × 109 sEVs/mL, which harbored eighty-three distinct miRNAs. Human PBMCs internalized sEVs and their RNA cargo. Egg sEVs, loaded with fluorophore-labeled RNA and administered orally to mice, accumulated primarily in brain, intestine and lungs. Spatial learning and memory (SLM) was compromised in mice fed on egg sEV- and RNA-depleted diet compared to controls. Egg consumption elicited an increase of miRNAs in human plasma. We conclude that egg sEVs and their RNA cargo probably are bioavailable. The human study is registered as a clinical trial and accessible at https://www.isrctn.com/ISRCTN77867213.
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Affiliation(s)
- Deborah Fratantonio
- Department of Nutrition and Health Sciences, University of Nebraska, Lincoln, NE, United States
| | - Javaria Munir
- Department of Nutrition and Health Sciences, University of Nebraska, Lincoln, NE, United States
| | - Jiang Shu
- School of Computing, University of Nebraska, Lincoln, NE, United States
| | - Katherine Howard
- Department of Nutrition and Health Sciences, University of Nebraska, Lincoln, NE, United States
| | - Scott R. Baier
- Department of Nutrition and Health Sciences, University of Nebraska, Lincoln, NE, United States
| | - Juan Cui
- School of Computing, University of Nebraska, Lincoln, NE, United States
| | - Janos Zempleni
- Department of Nutrition and Health Sciences, University of Nebraska, Lincoln, NE, United States
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21
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Chen R, Yang H, Dai J, Zhang M, Lu G, Zhang M, Yu H, Zheng M, He Q. The biological functions of maternal-derived extracellular vesicles during pregnancy and lactation and its impact on offspring health. Clin Nutr 2023; 42:493-504. [PMID: 36857958 DOI: 10.1016/j.clnu.2023.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 01/25/2023] [Accepted: 02/09/2023] [Indexed: 02/18/2023]
Abstract
During pregnancy and lactation, mothers provide not only nutrients, but also many bioactive components for their offspring through placenta and breast milk, which are essential for offspring development. Extracellular vesicles (EVs) are nanovesicles containing a variety of biologically active molecules and participate in the intercellular communication. In the past decade, an increasing number of studies have reported that maternal-derived EVs play a crucial role in offspring growth, development, and immune system establishment. Hereby, we summarized the characteristics of EVs; biological functions of maternal-derived EVs during pregnancy, including implantation, decidualization, placentation, embryo development and birth of offspring; biological function of breast milk-derived EVs (BMEs) on infant oral and intestinal diseases, immune system, neurodevelopment, and metabolism. In summary, emerging studies have revealed that maternal-derived EVs play a pivotal role in offspring health. As such, maternal-derived EVs may be used as promising biomarkers in offspring disease diagnosis and treatment. However, existing research on maternal-derived EVs and offspring health is largely limited to animal and cellular studies. Evidence from human studies is needed.
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Affiliation(s)
- Rui Chen
- School of Public Health, Wuhan University, Wuhan, China
| | | | - Jie Dai
- School of Public Health, Wuhan University, Wuhan, China
| | - Minzhe Zhang
- School of Public Health, Wuhan University, Wuhan, China
| | - Gaolei Lu
- School of Public Health, Wuhan University, Wuhan, China
| | - Minjie Zhang
- School of Public Health, Wuhan University, Wuhan, China
| | - Hongjie Yu
- School of Public Health, Wuhan University, Wuhan, China
| | - Miaobing Zheng
- School of Nutrition and Exercise, Deakin University, Melbourne, Australia
| | - Qiqiang He
- School of Public Health, Wuhan University, Wuhan, China; Wuhan University Shenzhen Research Institute, Shenzhen, China; Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan, China.
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22
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Ahlberg E, Al-Kaabawi A, Thune R, Simpson MR, Pedersen SA, Cione E, Jenmalm MC, Tingö L. Breast milk microRNAs: Potential players in oral tolerance development. Front Immunol 2023; 14:1154211. [PMID: 36999032 PMCID: PMC10045994 DOI: 10.3389/fimmu.2023.1154211] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 02/28/2023] [Indexed: 03/16/2023] Open
Abstract
Breast milk is an essential source of nutrition and hydration for the infant. In addition, this highly complex biological fluid contains numerous immunologically active factors such as microorganisms, immunoglobulins, cytokines and microRNAs (miRNAs). Here, we set out to predict the function of the top 10 expressed miRNAs in human breast milk, focusing on their relevance in oral tolerance development and allergy prevention in the infant. The top expressed miRNAs in human breast milk were identified on basis of previous peer-reviewed studies gathered from a recent systematic review and an updated literature search. The miRNAs with the highest expression levels in each study were used to identify the 10 most common miRNAs or miRNA families across studies and these were selected for subsequent target prediction. The predictions were performed using TargetScan in combination with the Database for Annotation, Visualization and Integrated Discovery. The ten top expressed miRNAs were: let-7-5p family, miR-148a-3p, miR-30-5p family, miR-200a-3p + miR-141-3p, miR-22-3p, miR-181-5p family, miR-146b-5p, miR-378a-3p, miR-29-3p family, miR-200b/c-3p and miR-429-3p. The target prediction identified 3,588 potential target genes and 127 Kyoto Encyclopedia of Genes and Genomes pathways; several connected to the immune system, including TGF-b and T cell receptor signaling and T-helper cell differentiation. This review highlights the role of breast milk miRNAs and their potential contribution to infant immune maturation. Indeed, breast milk miRNAs seem to be involved in several pathways that influence oral tolerance development.
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Affiliation(s)
- Emelie Ahlberg
- Division of Inflammation and Infection, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Ahmed Al-Kaabawi
- Division of Inflammation and Infection, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Rebecka Thune
- Division of Inflammation and Infection, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Melanie Rae Simpson
- Department of Public Health and Nursing, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Sindre Andre Pedersen
- Library Section for Research Support, Data and Analysis, NTNU University Library, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Erika Cione
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Cosenza, Italy
| | - Maria Christina Jenmalm
- Division of Inflammation and Infection, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Lina Tingö
- Division of Inflammation and Infection, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
- Nutrition-Gut-Brain Interactions Research Centre, School of Medical Sciences, Örebro University, Örebro, Sweden
- Food and Health Programme, Örebro University, Örebro, Sweden
- *Correspondence: Lina Tingö,
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23
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Melnik BC, John SM, Carrera-Bastos P, Cordain L, Leitzmann C, Weiskirchen R, Schmitz G. The Role of Cow's Milk Consumption in Breast Cancer Initiation and Progression. Curr Nutr Rep 2023; 12:122-140. [PMID: 36729355 PMCID: PMC9974716 DOI: 10.1007/s13668-023-00457-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/06/2022] [Indexed: 02/03/2023]
Abstract
PURPOSE OF REVIEW This review evaluates cow milk's impact on breast carcinogenesis by linking recent epidemiological evidence and new insights into the molecular signaling of milk and its constituents in breast cancer (BCa) pathogenesis. RECENT FINDINGS Recent prospective cohort studies support the association between cow's milk consumption and the risk of estrogen receptor-α-positive (ER+) BCa. Milk is a complex biological fluid that increases systemic insulin-like growth factor 1 (IGF-1), insulin and estrogen signaling, and interacting hormonal promoters of BCa. Further potential oncogenic components of commercial milk include exosomal microRNAs (miR-148a-3p, miR-21-5p), bovine meat and milk factors, aflatoxin M1, bisphenol A, pesticides, and micro- and nanoplastics. Individuals with BRCA1 loss-of-function mutations and FTO and IGF1 gain-of-function polymorphisms enhancing IGF-1/mTORC1 signaling may be at increased risk for milk-induced ER+ BCa. Recent prospective epidemiological and pathobiochemical studies identify commercial milk consumption as a critical risk factor of ER+ BCa. Large meta-analyses gathering individuals of different ethnic origins with milk derived from dairy cows of varying genetic backgrounds and diverse feeding procedures as well as missing data on thermal processing of milk (pasteurization versus ultra-heat treatment) make multi-national meta-analyses unsuitable for BCa risk estimations in susceptible populations. Future studies are required that consider all vulnerable periods of breast carcinogenesis to cow's milk exposure, beginning during the perinatal period and puberty, since these are the most critical periods of mammary gland morphogenesis. Notwithstanding the need for better studies including detailed information on milk processing and vulnerable periods of human breast carcinogenesis, the available evidence suggests that dietary guidelines on milk consumption may have to be reconsidered.
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Affiliation(s)
- Bodo C Melnik
- Department of Dermatology, Environmental Medicine and Health Theory, University of Osnabrück, D-49076, Osnabrück, Germany.
| | - Swen Malte John
- Department of Dermatology, Environmental Medicine and Health Theory, University of Osnabrück, D-49076, Osnabrück, Germany
- Institute for Interdisciplinary Dermatological Prevention and Rehabilitation (iDerm) at the University of Osnabrück, Lower-Saxonian Institute of Occupational Dermatology (NIB), Osnabrück, Germany
| | - Pedro Carrera-Bastos
- Center for Primary Health Care Research, Lund University/Region Skåne, Skåne University Hospital, 205 02, Malmö, Sweden
- Faculty of Biomedical and Health Sciences, Universidad Europea de Madrid, 28670, Madrid, Spain
- Centro de Estudios Avanzados en Nutrición (CEAN), 11007, Cádiz, Spain
| | | | - Claus Leitzmann
- Institute of Nutrition, University of Giessen, 35390, Giessen, Germany
| | - Ralf Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), RWTH University Hospital Aachen, D-52074, Aachen, Germany
| | - Gerd Schmitz
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital of Regensburg, University of Regensburg, D-93053, Regensburg, Germany
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Buratta S, Urbanelli L, Tognoloni A, Latella R, Cerrotti G, Emiliani C, Chiaradia E. Protein and Lipid Content of Milk Extracellular Vesicles: A Comparative Overview. Life (Basel) 2023; 13. [PMID: 36836757 DOI: 10.3390/life13020401] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/19/2023] [Accepted: 01/28/2023] [Indexed: 02/04/2023] Open
Abstract
The characterization of the protein and lipid cargo of milk extracellular vesicles from different mammal species is crucial for understanding their biogenesis and biological functions, as well as for a comprehensive description of the nutritional aspects of animal milk for human diet. In fact, milk EVs have been reported to possess relevant biological effects, but the molecules/biochemical pathways underlying these effects have been poorly investigated. The biochemical characterization is an important initial step for the potential therapeutic and diagnostic use of natural or modified milk EVs. The number of studies analysing the protein and lipid composition of milk EVs is limited compared to that investigating the nucleic acid cargo. Here, we revised the literature regarding the protein and lipid content of milk EVs. Until now, most investigations have shown that the biochemical cargo of EVs is different with respect to that of other milk fractions. In addition, even if these studies derived mostly from bovine and human milk EVs, comparison between milk EVs from different animal species and milk EVs biochemical composition changes due to different factors including lactation stages and health status is also beginning to be reported.
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25
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Kondracka A, Gil-Kulik P, Kondracki B, Frąszczak K, Oniszczuk A, Rybak-Krzyszkowska M, Staniczek J, Kwaśniewska A, Kocki J. Occurrence, Role, and Challenges of MicroRNA in Human Breast Milk: A Scoping Review. Biomedicines 2023; 11:biomedicines11020248. [PMID: 36830785 PMCID: PMC9953053 DOI: 10.3390/biomedicines11020248] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/12/2023] [Accepted: 01/13/2023] [Indexed: 01/19/2023] Open
Abstract
MicroRNAs are non-coding segments of RNA involved in the epigenetic modulation of various biological processes. Their occurrence in biological fluids, such as blood, saliva, tears, and breast milk, has drawn attention to their potential influence on health and disease development. Hundreds of microRNAs have been isolated from breast milk, yet the evidence on their function remains inconsistent and inconclusive. The rationale for the current scoping review is to map the evidence on the occurrence, characterization techniques, and functional roles of microRNAs in breast milk. The review of the sources of this evidence highlights the need to address methodological challenges to achieve future advances in understanding microRNAs in breast milk, particularly their role in conditions such as neoplasms. Nonetheless, remarkable progress has been made in characterizing the microRNA profiles of human breast milk.
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Affiliation(s)
- Adrianna Kondracka
- Department of Obstetrics and Pathology of Pregnancy, Medical University of Lublin, 20-059 Lublin, Poland
| | - Paulina Gil-Kulik
- Department of Clinical Genetics, Medical University of Lublin, 11 Radziwillowska Str., 20-080 Lublin, Poland
| | - Bartosz Kondracki
- Department of Cardiology, Medical University of Lublin, 20-059 Lublin, Poland
- Correspondence:
| | - Karolina Frąszczak
- Department of Oncological Gynecology and Gynecology, Medical University of Lublin, 20-059 Lublin, Poland
| | - Anna Oniszczuk
- Department of Inorganic Chemistry, Medical University of Lublin, 20-059 Lublin, Poland
| | | | - Jakub Staniczek
- Department of Gynecology, Obstetrics and Gynecologic Oncology, Medical University of Silesia, 40-055 Katowice, Poland
| | - Anna Kwaśniewska
- Department of Obstetrics and Pathology of Pregnancy, Medical University of Lublin, 20-059 Lublin, Poland
| | - Janusz Kocki
- Department of Clinical Genetics, Medical University of Lublin, 11 Radziwillowska Str., 20-080 Lublin, Poland
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26
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Hicks SD, Beheshti R, Chandran D, Warren K, Confair A. Infant consumption of microRNA miR-375 in human milk lipids is associated with protection from atopy. Am J Clin Nutr 2022; 116:1654-1662. [PMID: 36166840 DOI: 10.1093/ajcn/nqac266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 09/19/2022] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Human milk is thought to reduce infant atopy risk. The biologic mechanism for this protective effect is not fully understood. OBJECTIVES We tested the hypothesis that infant consumption of 4 microRNAs (miR-146b-5p, miR-148b-3p, miR-21-5p, and miR-375-3p) in human milk would be associated with reduced atopy risk. METHODS The Breast Milk Influence of the Microtranscriptome Profile on Atopy in Children over Time (IMPACT) study involved a cohort of mother-infant dyads who planned to breastfeed beyond 4 mo. Infant consumption of the 4 human milk microRNAs (miRNAs) in the first 6 mo was calculated as the product of milk miRNA concentration and the number of human milk feeds, across 3 lactation stages: early milk (0-4 wk), transitional milk (4-16 wk), and mature milk (16-24 wk). The primary outcome was infant atopy in the first year, defined as atopic dermatitis (AD), food allergies, or wheezing. The final analysis included 432 human milk samples and 7824 wk of longitudinal health data from 163 dyads. RESULTS Seventy-three infants developed atopy. Forty-one were diagnosed with AD (25%), 33 developed food allergy (20%), and 10 had wheezing (6%). Eleven developed >1 condition (7%). Infants who did not develop atopy consumed higher concentrations of miR-375-3p (d = 0.18, P = 0.022, adj P = 0.044) and miR-148b-3p (d = 0.23, P = 0.007, adj P = 0.028). The consumption of miR-375-3p (X2 = 5.7, P = 0.017, OR: 0.92, 95% CI: 0.86, 0.99) was associated with reduced atopy risk. Concentrations of miR-375-3p increased throughout lactation (r = 0.46, F = 132.3, P = 8.4 × 10-34) and were inversely associated with maternal body mass (r = -0.11, t = -2.1, P = 0.032). CONCLUSIONS This study provides evidence that infant consumption of miR-375-3p may reduce atopy risk.
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Affiliation(s)
- Steven D Hicks
- Department of Pediatrics, Penn State College of Medicine, Hershey, PA, USA
| | - Ramin Beheshti
- Department of Pediatrics, Penn State College of Medicine, Hershey, PA, USA
| | - Desirae Chandran
- Department of Pediatrics, Penn State College of Medicine, Hershey, PA, USA
| | - Kaitlyn Warren
- Department of Pediatrics, Penn State College of Medicine, Hershey, PA, USA
| | - Alexandra Confair
- Department of Pediatrics, Penn State College of Medicine, Hershey, PA, USA
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27
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Ren J, Yu R, Xue J, Tang Y, Su S, Liao C, Guo Q, Guo W, Zheng J. How Do Extracellular Vesicles Play a Key Role in the Maintenance of Bone Homeostasis and Regeneration? A Comprehensive Review of Literature. Int J Nanomedicine 2022; 17:5375-5389. [PMID: 36419718 PMCID: PMC9677931 DOI: 10.2147/ijn.s377598] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 10/31/2022] [Indexed: 11/26/2023] Open
Abstract
The maintenance of bone homeostasis includes both bone resorption by osteoclasts and bone formation by osteoblasts. These two processes are in dynamic balance to maintain a constant amount of bone for accomplishing its critical functions in daily life. Multiple cell type communications are involved in these two complex and continuous processes. In recent decades, an increasing number of studies have shown that osteogenic and osteoclastic extracellular vesicles play crucial roles in regulating bone homeostasis through paracrine, autosecretory and endocrine signaling. Elucidating the functional roles of extracellular vesicles in the maintenance of bone homeostasis may contribute to the design of new strategies for bone regeneration. Hence, we review the recent understandings of the classification, production process, extraction methods, structure, contents, functions and applications of extracellular vesicles in bone homeostasis. We highlight the contents of various bone-derived extracellular vesicles and their interactions with different cells in the bone microenvironment during bone homeostasis. We also summarize the recent advances in EV-loaded biomaterial scaffolds for bone regeneration and repair.
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Affiliation(s)
- Junxian Ren
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, People’s Republic of China
| | - Rongcheng Yu
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, People’s Republic of China
| | - Jingyan Xue
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, People’s Republic of China
| | - Yiqi Tang
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, People’s Republic of China
| | - Sihui Su
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, People’s Republic of China
| | - Chenxi Liao
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, People’s Republic of China
| | - Quanyi Guo
- Institute of Orthopedics, Chinese PLA General Hospital, Key Laboratory of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing, 100853, People’s Republic of China
| | - Weimin Guo
- Department of Orthopedic Surgery, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510055, People’s Republic of China
| | - Jinxuan Zheng
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, People’s Republic of China
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28
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Rashidi M, Bijari S, Khazaei AH, Shojaei-Ghahrizjani F, Rezakhani L. The role of milk-derived exosomes in the treatment of diseases. Front Genet 2022; 13:1009338. [PMID: 36338966 PMCID: PMC9634108 DOI: 10.3389/fgene.2022.1009338] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 10/11/2022] [Indexed: 11/25/2022] Open
Abstract
Exosomes (EXOs) are natural nanoparticles of endosome origin that are secreted by a variety of cells in the body. Exosomes have been found in bio-fluids such as urine, saliva, amniotic fluid, and ascites, among others. Milk is the only commercially available biological liquid containing EXOs. Proof that exosomes are essential for cell-to-cell communication is increasingly being reported. Studies have shown that they migrate from the cell of origin to various bioactive substances, including membrane receptors, proteins, mRNAs, microRNAs, and organelles, or they can stimulate target cells directly through interactions with receptors. Because of the presence of specific proteins, lipids, and RNAs, exosomes act in physiological and pathological conditions in vivo. Other salient features of EXOs include their long half-life in the body, no tumorigenesis, low immune response, good biocompatibility, ability to target cells through their surface biomarkers, and capacity to carry macromolecules. EXOs have been introduced to the scientific community as important, efficient, and attractive nanoparticles. They can be extracted from different sources and have the same characteristics as their parents. EXOs present in milk can be separated by size exclusion chromatography, density gradient centrifugation, or (ultra) centrifugation; however, the complex composition of milk that includes casein micelles and milk fat globules makes it necessary to take additional issues into consideration when employing the mentioned techniques with milk. As a rich source of EXOs, milk has unique properties that, in addition to its role as a carrier, promotes its use in treating diseases such as digestive problems, skin ulcers, and cancer, Moreover, EXOs derived from camel milk are reported to reduce the risk of oxidative stress and cancer. Milk-derived exosomes (MDEs) from yak milk improves gastrointestinal tract (GIT) development under hypoxic conditions. Furthermore, yak-MDEs have been suggested to be the best treatment for intestinal epithelial cells (IEC-6 cell line). Because of their availability as well as the non-invasiveness and cost-effectiveness of their preparation, isolates from mammals milk can be excellent resources for studies related to EXOs. These features also make it possible to exploit MDEs in clinical trials. The current study aimed to investigate the therapeutic applications of EXOs isolated from various milk sources.
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Affiliation(s)
- Mehdi Rashidi
- Department of Medical Nanotechnology, Islamic Azad University of Pharmaceutical Sciences (IAUPS), Tehran, Iran
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Salar Bijari
- Department of Medical Physics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Amir Hossein Khazaei
- Student Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Leila Rezakhani
- Fertility and Infertility Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Department of Tissue Engineering, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
- *Correspondence: Leila Rezakhani, ,
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29
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Munir J, Ngu A, Wang H, Ramirez DMO, Zempleni J. Review: Milk Small Extracellular Vesicles for Use in the Delivery of Therapeutics. Pharm Res 2022. [PMID: 36198923 DOI: 10.1007/s11095-022-03404-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 09/23/2022] [Indexed: 10/10/2022]
Abstract
Small extracellular vesicles (sEVs, "exosomes") in milk have attracted considerable attention for use in delivering therapeutics to diseased tissues because of the following qualities. The production of milk sEVs is scalable, e.g., more than 1021 sEVs may be obtained annually from a single cow. Milk EVs protect their cargo against degradation in the gastrointestinal tract and during industrial processing. Milk sEVs and their cargo are absorbed following oral administration and they cross barriers such as intestinal mucosa, placenta and the blood-brain barrier in humans, pigs, and mice. Milk sEVs do no alter variables of liver and kidney function, or hematology, and do not elicit immune responses in humans, rats, and mice. Protocols are available for loading milk sEVs with therapeutic cargo, and a cell line is available for assessing effects of milk sEV modifications on drug delivery. Future research will need to assess and optimize sEV shelf-life and storage and effects of milk sEV modifications on the delivery of therapeutic cargo to diseased tissues.
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30
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Melnik BC, Schmitz G. Milk Exosomal microRNAs: Postnatal Promoters of β Cell Proliferation but Potential Inducers of β Cell De-Differentiation in Adult Life. Int J Mol Sci 2022; 23:ijms231911503. [PMID: 36232796 PMCID: PMC9569743 DOI: 10.3390/ijms231911503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/15/2022] [Accepted: 09/20/2022] [Indexed: 11/16/2022] Open
Abstract
Pancreatic β cell expansion and functional maturation during the birth-to-weaning period is driven by epigenetic programs primarily triggered by growth factors, hormones, and nutrients provided by human milk. As shown recently, exosomes derived from various origins interact with β cells. This review elucidates the potential role of milk-derived exosomes (MEX) and their microRNAs (miRs) on pancreatic β cell programming during the postnatal period of lactation as well as during continuous cow milk exposure of adult humans to bovine MEX. Mechanistic evidence suggests that MEX miRs stimulate mTORC1/c-MYC-dependent postnatal β cell proliferation and glycolysis, but attenuate β cell differentiation, mitochondrial function, and insulin synthesis and secretion. MEX miR content is negatively affected by maternal obesity, gestational diabetes, psychological stress, caesarean delivery, and is completely absent in infant formula. Weaning-related disappearance of MEX miRs may be the critical event switching β cells from proliferation to TGF-β/AMPK-mediated cell differentiation, whereas continued exposure of adult humans to bovine MEX miRs via intake of pasteurized cow milk may reverse β cell differentiation, promoting β cell de-differentiation. Whereas MEX miR signaling supports postnatal β cell proliferation (diabetes prevention), persistent bovine MEX exposure after the lactation period may de-differentiate β cells back to the postnatal phenotype (diabetes induction).
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Affiliation(s)
- Bodo C. Melnik
- Department of Dermatology, Environmental Medicine and Health Theory, University of Osnabrück, D-49076 Osnabrück, Germany
- Correspondence: ; Tel.: +49-52-4198-8060
| | - Gerd Schmitz
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital of Regensburg, University of Regensburg, D-93053 Regensburg, Germany
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Zhou Y, Liu Y, Xu G, Liu L, Li H, Li Y, Yin J, Wang X, Yu Z. Human breast milk-derived exosomes through inhibiting AT II cell apoptosis to prevent bronchopulmonary dysplasia in rat lung. J Cell Mol Med 2022; 26:4169-4182. [PMID: 35833257 PMCID: PMC9344832 DOI: 10.1111/jcmm.17334] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 03/10/2022] [Accepted: 03/31/2022] [Indexed: 11/30/2022] Open
Abstract
Human breast milk (HBM) effectively prevents and cures neonatal bronchopulmonary dysplasia (BPD). Exosomes are abundant in breast milk, but the function of HBM‐derived exosomes (HBM‐Exo) in BPD is still unclear. This study was to investigate the role and mechanism of HBM‐Exo in BPD. Overall lung tissue photography and H&E staining showed that HBM‐Exo improved the lung tissue structure collapse, alveolar structure disorder, alveolar septum width, alveolar number reduction and other injuries caused by high oxygen exposure. Immunohistochemical results showed that HBM‐Exo improved the inhibition of cell proliferation and increased apoptosis caused by hyperoxia. qPCR and Western blot results also showed that HBM‐Exo improved the expression of Type II alveolar epithelium (AT II) surface marker SPC. In vivo study, CCK8 and flow cytometry showed that HBM‐Exo improved the proliferation inhibition and apoptosis of AT II cells induced by hyperoxia, qPCR and immunofluorescence also showed that HBM‐Exo improved the down‐regulation of SPC. Further RNA‐Seq results in AT II cells showed that a total of 88 genes were significantly different between the hyperoxia and HBM‐Exo with hyperoxia groups, including 24 up‐regulated genes and 64 down‐regulated genes. KEGG pathway analysis showed the enrichment of IL‐17 signalling pathway was the most significant. Further rescue experiments showed that HBM‐Exo improved AT II cell damage induced by hyperoxia through inhibiting downstream of IL‐17 signalling pathway (FADD), which may be an important mechanism of HBM‐Exo in the prevention and treatment of BPD. This study may provide new approach in the treatment of BPD.
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Affiliation(s)
- Yahui Zhou
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China.,Department of Neonatology, Wuxi Children's Hospital affiliated to Nanjing Medical University, Wuxi, China
| | - Yiwen Liu
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China.,The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Gen Xu
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China.,Department of Cardiothoracic surgery, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Lingjie Liu
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| | - Huimin Li
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| | - Yubai Li
- The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Jing Yin
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| | - Xingyun Wang
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| | - Zhangbin Yu
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China.,Department of Neonatology, Shenzhen People's Hospital, (The Second Clinical MedicalCollege, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
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Li D, Yao X, Yue J, Fang Y, Cao G, Midgley AC, Nishinari K, Yang Y. Advances in Bioactivity of MicroRNAs of Plant-Derived Exosome-Like Nanoparticles and Milk-Derived Extracellular Vesicles. J Agric Food Chem 2022; 70:6285-6299. [PMID: 35583385 DOI: 10.1021/acs.jafc.2c00631] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
MicroRNA (miRNA) is a class of small noncoding RNA involved in physiological and pathological processes via the regulation of gene expression. Naked miRNAs are unstable and liable to degradation by RNases. Exosome-like nanoparticles (ELNs) secreted by plants and extracellular vesicles (EVs) found in milk are abundant in miRNAs, which can be carried by ELNs and EVs to target cells to exert their bioactivities. In this review, we describe the current understanding of miRNAs in plant ELNs and milk EVs, summarize their important roles in regulation of inflammation, intestinal barrier, tumors, and infantile immunological functions, and also discuss the adverse effect of EV miRNAs on human health. Additionally, we prospect recent challenges centered around ELN and EV miRNAs for interventional applications and provide insights of grain-derived ELNs and miRNAs interventional use in human health. Overall, plant ELNs and milk EVs can transfer miRNAs to mitigate the pathological status of recipient cells by mediating the expression of target genes but may also exert some side effects. More studies are required to elucidate the in-depth understanding of potential interventional effects of ELN and EV miRNAs on human health.
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Affiliation(s)
- Dan Li
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, P. R. China
| | - Xiaolin Yao
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, P. R. China
| | - Jianxiong Yue
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, P. R. China
| | - Yapeng Fang
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Guifang Cao
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, P. R. China
| | - Adam C Midgley
- Key Laboratory of Bioactive Materials (MoE), College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Katsuyoshi Nishinari
- Glyn O. Phillips Hydrocolloid Research Centre, School of Bioengineering and Food Science, Hubei University of Technology, Wuhan 430068, China
| | - Yongli Yang
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, P. R. China
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Abstract
Exosomes are natural nanoparticles that originate in the endocytic system. Exosomes play an important role in cell-to-cell communication by transferring RNAs, lipids, and proteins from donor cells to recipient cells or by binding to receptors on the recipient cell surface. The concentration of exosomes and the diversity of cargos are high in milk. Exosomes and their cargos resist degradation in the gastrointestinal tract and during processing of milk in dairy plants. They are absorbed and accumulate in tissues following oral administrations, cross the blood-brain barrier, and dietary depletion and supplementation elicit phenotypes. These features have sparked the interest of the nutrition and pharmacology communities for exploring milk exosomes as novel bioactive food compounds and for delivering drugs to diseased tissues. This review discusses the current knowledgebase, uncertainties, and controversies in these lines of scholarly endeavor and health research.
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Affiliation(s)
- Alice Ngu
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska
| | - Shu Wang
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska
| | - Haichuan Wang
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska
| | - Afsana Khanam
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska
| | - Janos Zempleni
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska
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Vélez-ixta JM, Benítez-guerrero T, Aguilera-hernández A, Martínez-corona H, Corona-cervantes K, Juárez-castelán CJ, Rangel-calvillo MN, García-mena J. Detection and Quantification of Immunoregulatory miRNAs in Human Milk and Infant Milk Formula. BioTech 2022; 11:11. [PMID: 35822784 PMCID: PMC9264398 DOI: 10.3390/biotech11020011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 03/12/2022] [Accepted: 03/18/2022] [Indexed: 11/17/2022] Open
Abstract
Mammary gland secretory cells produce miRNA-rich milk. In humans, these miRNAs reach infant/neonate bloodstream, playing diverse roles, like neural system development, metabolism, and immune system maturation. Notwithstanding, still few works explore human milk miRNA content, and there are no reports at the population level. Our hypothesis was that miR-146b-5p, miR148a-3p, miR155-5p, mir181a-5p, and mir200a-3p immunoregulatory miRNAs are expressed in human colostrum/milk at a higher level than infant milk formulae. The aim of this work was to evaluate the expression of the five immunoregulatory miRNAs in human milk and compare it with their expression in infant milk formula. For this purpose, miRNA relative expression was measured by qPCR in cDNA prepared from total RNA extracted from sixty human colostrum/milk samples and six different formulae. The comparative Cт method 2−ΔCт using exogenous cel-miR-39 as internal control was employed, followed by statistical analysis. We found the relative expression levels of miRNAs are comparable among colostrum/milk samples, and these miRNAs are present in infant milk formulae but at very low concentrations. We conclude that the relative expression of the immunomodulatory miRNAs is comparable in all the human colostrum/milk samples and is higher than the expression in formulae.
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Sukreet S, Pereira Braga C, An TT, Adamec J, Cui J, Zempleni J. Ultrasonication of Milk Decreases the Content of Exosomes and MicroRNAs in an Exosome-Defined Rodent Diet. J Nutr 2022; 152:961-970. [PMID: 34982830 PMCID: PMC8970979 DOI: 10.1093/jn/nxab452] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 12/22/2021] [Accepted: 12/28/2021] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Bovine milk exosomes (BMEs) harbor regulatory proteins, lipids, and microRNAs. Consumption of an exosome- and RNA-depleted (ERD) diet elicited phenotypes compared with controls fed an exosome- and RNA-sufficient (ERS) diet in mice. All other ingredients were identical in the diets. ERD and ERS diets were prepared by substituting ultrasonicated and nonultrasonicated milk, respectively, for casein in the AIN-93G formulation. OBJECTIVES The objective of this study was to assess the effect of ultrasonication of milk on exosome content and bioavailability, and cargo content. METHODS Bovine milk was ultrasonicated and exosomes were isolated by ultracentrifugation [ultrasonicated exosomes (USEs)]; controls were not ultrasonicated [nonultrasonicated exosomes (NSEs)]. Exosome count, size, and morphology were assessed using a nanoparticle tracker and electron microscopy. RNAs, lipids, and proteins were analyzed by RNA sequencing and MS. Intestinal transport, bioavailability, and distribution were measured by using fluorophore-labeled USEs and NSEs in Caco-2 cells, FHs 74 Int cells, and C57BL/6J mice (n = 3; age: 6-8 wk). RESULTS The exosome count was 76% ± 22% lower in USEs than in NSEs (P < 0.05). Ultrasonication caused a degradation of ≤100% of microRNAs. USEs and NSEs contained 145 and 332 unique lipid signatures, respectively (P < 0.05). We detected a total of 525 and 484 proteins in USEs and NSEs, respectively. The uptake of USEs decreased by 46% ± 30% and 40% ± 27% compared with NSEs in Caco-2 and FHs 74 Int cells, respectively (P < 0.05). The hepatic accumulation of USEs was 48% ± 28% lower than the accumulation of NSEs in mice (P < 0.05). CONCLUSIONS Ultrasonication of milk depletes bioavailable BMEs in studies of Caco-2 cells, FHs 74 Int cells, and C57BL/6J mice and causes a near-complete degradation of microRNA cargos.
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Affiliation(s)
- Sonal Sukreet
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA
| | | | - Thuy T An
- Department of Computer Science and Engineering, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Jiri Adamec
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Juan Cui
- Department of Computer Science and Engineering, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Janos Zempleni
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA
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García-Martínez J, Pérez-Castillo ÍM, Salto R, López-Pedrosa JM, Rueda R, Girón MD. Beneficial Effects of Bovine Milk Exosomes in Metabolic Interorgan Cross-Talk. Nutrients 2022; 14:nu14071442. [PMID: 35406056 PMCID: PMC9003525 DOI: 10.3390/nu14071442] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/25/2022] [Accepted: 03/28/2022] [Indexed: 12/12/2022] Open
Abstract
Extracellular vesicles are membrane-enclosed secreted vesicles involved in cell-to-cell communication processes, identified in virtually all body fluids. Among extracellular vesicles, exosomes have gained increasing attention in recent years as they have unique biological origins and deliver different cargos, such as nucleic acids, proteins, and lipids, which might mediate various health processes. In particular, milk-derived exosomes are proposed as bioactive compounds of breast milk, which have been reported to resist gastric digestion and reach systemic circulation, thus being bioavailable after oral intake. In the present manuscript, we critically discuss the available evidence on the health benefits attributed to milk exosomes, and we provide an outlook for the potential future uses of these compounds. The use of milk exosomes as bioactive ingredients represents a novel avenue to explore in the context of human nutrition, and they might exert important beneficial effects at multiple levels, including but not limited to intestinal health, bone and muscle metabolism, immunity, modulation of the microbiota, growth, and development.
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Affiliation(s)
- Jorge García-Martínez
- Abbott Nutrition R&D, Abbott Laboratories, 18004 Granada, Spain; (J.G.-M.); (Í.M.P.-C.); (J.M.L.-P.); (R.R.)
| | - Íñigo M. Pérez-Castillo
- Abbott Nutrition R&D, Abbott Laboratories, 18004 Granada, Spain; (J.G.-M.); (Í.M.P.-C.); (J.M.L.-P.); (R.R.)
| | - Rafael Salto
- Department of Biochemistry and Molecular Biology II, School of Pharmacy, University of Granada, Campus de Cartuja, 18071 Granada, Spain;
- Correspondence: ; Tel.: +34-958-246363
| | - José M. López-Pedrosa
- Abbott Nutrition R&D, Abbott Laboratories, 18004 Granada, Spain; (J.G.-M.); (Í.M.P.-C.); (J.M.L.-P.); (R.R.)
| | - Ricardo Rueda
- Abbott Nutrition R&D, Abbott Laboratories, 18004 Granada, Spain; (J.G.-M.); (Í.M.P.-C.); (J.M.L.-P.); (R.R.)
| | - María D. Girón
- Department of Biochemistry and Molecular Biology II, School of Pharmacy, University of Granada, Campus de Cartuja, 18071 Granada, Spain;
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Hicks SD, Confair A, Warren K, Chandran D. Levels of Breast Milk MicroRNAs and Other Non-Coding RNAs Are Impacted by Milk Maturity and Maternal Diet. Front Immunol 2022; 12:785217. [PMID: 35095859 PMCID: PMC8796169 DOI: 10.3389/fimmu.2021.785217] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 12/15/2021] [Indexed: 12/21/2022] Open
Abstract
There is emerging evidence that non-coding RNAs (ncRNAs) within maternal breast milk (MBM) impart unique metabolic and immunologic effects on developing infants. Most studies examining ncRNAs in MBM have focused on microRNAs. It remains unclear whether microRNA levels are related to other ncRNAs, or whether they are impacted by maternal characteristics. This longitudinal cohort study examined 503 MBM samples from 192 mothers to: 1) identify the most abundant ncRNAs in MBM; 2) examine the impact of milk maturity on ncRNAs; and 3) determine whether maternal characteristics affect ncRNAs. MBM was collected at 0, 1, and 4 months post-delivery. High throughput sequencing quantified ncRNAs within the lipid fraction. There were 3069 ncRNAs and 238 microRNAs with consistent MBM presence (≥10 reads in ≥10% samples). Levels of 17 ncRNAs and 11 microRNAs accounted for 80% of the total RNA content. Most abundant microRNAs displayed relationships ([R]>0.2, adj p< 0.05) with abundant ncRNAs. A large proportion of ncRNAs (1269/3069; 41%) and microRNAs (206/238; 86%) were affected by MBM maturity. The majority of microRNAs (111/206; 54%) increased from 0-4 months. Few ncRNAs and microRNAs were affected (adj p < 0.05) by maternal age, race, parity, body mass index, gestational diabetes, or collection time. However, nearly half of abundant microRNAs (4/11) were impacted by diet. To our knowledge this is the largest study of MBM ncRNAs, and the first to demonstrate a relationship between MBM microRNAs and maternal diet. Such knowledge could guide nutritional interventions aimed at optimizing metabolic and immunologic microRNA profiles within MBM.
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Affiliation(s)
- Steven D Hicks
- Division of Academic General Pediatrics, Department of Pediatrics, Penn State College of Medicine, Hershey, PA, United States
| | - Alexandra Confair
- Division of Academic General Pediatrics, Department of Pediatrics, Penn State College of Medicine, Hershey, PA, United States
| | - Kaitlyn Warren
- Division of Academic General Pediatrics, Department of Pediatrics, Penn State College of Medicine, Hershey, PA, United States
| | - Desirae Chandran
- Division of Academic General Pediatrics, Department of Pediatrics, Penn State College of Medicine, Hershey, PA, United States
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Wang H, Wu D, Sukreet S, Delaney A, Belfort MB, Zempleni J. Quantitation of Exosomes and Their MicroRNA Cargos in Frozen Human Milk. JPGN Rep 2022; 3:e172. [PMID: 35812131 DOI: 10.1097/pg9.0000000000000172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
We assessed feasibility of analyzing exosomes and microRNA cargos in frozen human milk as a pre-requisite for epidemiological studies of milk exosomes. We collected milk from five mother-preterm infant dyads at 3 time points during postnatal hospital care for storage at -80°C. We purified exosomes by ultracentrifugation, probed marker proteins using immunoblots, assessed size and counts with a nanoparticle tracker, and quantified three microRNAs with quantitative PCR. Positive exosome marker proteins were detectable; β-casein was the only detectable contaminant. Exosome count and size trended to decrease from early to late samples (count: 2.3×109 ± 3.8×109 to 5.6×108 ± 9.7×108 exosomes/mL; size: 117 ± 25 to 92 ± 16 nm). Two microRNAs were detectable in early samples only; cycle threshold values equaled 28.7 ± 0.7 for miR-30d-5p and miR-125a-5p; miR-423-5p was not detectable. We conclude that the analysis of exosomes and quantification of microRNAs is feasible in human milk previously stored at -80°C.
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Mutai E, Ngu AKH, Zempleni J. Preliminary evidence that lectins in infant soy formula apparently bind bovine milk exosomes and prevent their absorption in healthy adults. BMC Nutr 2022; 8:7. [PMID: 35063038 PMCID: PMC8780320 DOI: 10.1186/s40795-022-00503-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 01/14/2022] [Indexed: 12/31/2022] Open
Abstract
Abstract
Background
Milk exosomes and their microRNA (miR) cargos are bioavailable. The content of exosomes and miRs is negligible in infant formulas compared to human milk, and dietary depletion of exosomes led to changes in bacterial communities and impaired gut health in juvenile mice. Adverse effects of formula feeding may be compounded by using soy formulas due to exosome binding by abundant lectins in that matrix. The purpose of this study was to assess the bioavailability of milk exosomes and their miR cargos added to soy formula in adults, as well as the potential role of soy lectins in exosome bioavailability.
Methods
Eleven healthy adults (6 men, 5 women) enrolled in this randomized crossover study. Participants consumed 1.0 l of soy formula without (SF) or with (SFE) bovine milk exosomes added. Concentration-time curves of six plasma miRs were analyzed using reverse transcription quantitative PCR. Lectin affinity chromatography was used to assess the binding of exosomes by soy lectins. Data were analyzed by using paired t test. P < 0.05 was considered statistically significant.
Results
Consumption of SF and SFE did not elicit postprandial increases in plasma miRs. Approximately 39% of bovine milk exosome particles were retained by lectin columns.
Conclusions
We conclude that fortification of soy formulas with milk exosomes, in the absence of removing lectins, is not a viable strategy for delivering bioavailable exosomes and their miR cargos. Lectins in soy formulas bind glycoprotein on the surfaces of milk exosomes, thereby preventing exosome absorption.
Trial registration
ISRCTN registry ID: 16329971. Retrospectively registered on February 7th, 2019.
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Zhou F, Ebea P, Mutai E, Wang H, Sukreet S, Navazesh S, Dogan H, Li W, Cui J, Ji P, Ramirez DMO, Zempleni J. Small Extracellular Vesicles in Milk Cross the Blood-Brain Barrier in Murine Cerebral Cortex Endothelial Cells and Promote Dendritic Complexity in the Hippocampus and Brain Function in C57BL/6J Mice. Front Nutr 2022; 9:838543. [PMID: 35600828 PMCID: PMC9121399 DOI: 10.3389/fnut.2022.838543] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 03/29/2022] [Indexed: 12/12/2022] Open
Abstract
Human milk contains large amounts of small extracellular vesicles (sEVs) and their microRNA cargos, whereas infant formulas contain only trace amounts of sEVs and microRNAs. We assessed the transport of sEVs across the blood-brain barrier (BBB) and sEV accumulation in distinct regions of the brain in brain endothelial cells and suckling mice. We further assessed sEV-dependent gene expression profiles and effects on the dendritic complexity of hippocampal granule cells and phenotypes of EV depletion in neonate, juvenile and adult mice. The transfer of sEVs across the BBB was assessed by using fluorophore-labeled bovine sEVs in brain endothelial bEnd.3 monolayers and dual chamber systems, and in wild-type newborn pups fostered to sEV and cargo tracking (ECT) dams that express sEVs labeled with a CD63-eGFP fusion protein for subsequent analysis by serial two-photon tomography and staining with anti-eGFP antibodies. Effects of EVs on gene expression and dendritic architecture of granule cells was analyzed in hippocampi from juvenile mice fed sEV and RNA-depleted (ERD) and sEV and RNA-sufficient (ERS) diets by using RNA-sequencing analysis and Golgi-Cox staining followed by integrated neuronal tracing and morphological analysis of neuronal dendrites, respectively. Spatial learning and severity of kainic acid-induced seizures were assessed in mice fed ERD and ERS diets. bEnd.3 cells internalized sEVs by using a saturable transport mechanism and secreted miR-34a across the basal membrane. sEVs penetrated the entire brain in fostering experiments; major regions of accumulation included the hippocampus, cortex and cerebellum. Two hundred ninety-five genes were differentially expressed in hippocampi from mice fed ERD and ERS diets; high-confidence gene networks included pathways implicated in axon guidance and calcium signaling. Juvenile pups fed the ERD diet had reduced dendritic complexity of dentate granule cells in the hippocampus, scored nine-fold lower in the Barnes maze test of spatial learning and memory, and the severity of seizures was 5-fold higher following kainic acid administration in adult mice fed the ERD diet compared to mice fed the ERS diet. We conclude that sEVs cross the BBB and contribute toward optimal neuronal development, spatial learning and memory, and resistance to kainic acid-induced seizures in mice.
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Affiliation(s)
- Fang Zhou
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE, United States
| | - Pearl Ebea
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE, United States
| | - Ezra Mutai
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE, United States
| | - Haichuan Wang
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE, United States
| | - Sonal Sukreet
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE, United States
| | - Shya Navazesh
- Department of Nutrition, University of California, Davis, Davis, CA, United States
| | - Haluk Dogan
- School of Computing, University of Nebraska-Lincoln, Lincoln, NE, United States
| | - Wenhao Li
- Department of Neurology, University of Texas Southwestern Medical Center, Dallas, TX, United States
- Peter O’Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Juan Cui
- School of Computing, University of Nebraska-Lincoln, Lincoln, NE, United States
| | - Peng Ji
- Department of Nutrition, University of California, Davis, Davis, CA, United States
| | - Denise M. O. Ramirez
- Department of Neurology, University of Texas Southwestern Medical Center, Dallas, TX, United States
- Peter O’Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX, United States
- *Correspondence: Denise M. O. Ramirez,
| | - Janos Zempleni
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE, United States
- Janos Zempleni,
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Ohta M, Koshida S, Jimbo I, Oda M, Inoue R, Tsukahara T, Terahara M, Nakamura Y, Maruo Y. Highest concentration of breast-milk-derived exosomes in colostrum. Pediatr Int 2022; 64:e15346. [PMID: 36370374 DOI: 10.1111/ped.15346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 08/08/2022] [Accepted: 08/31/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND Exosomes are nanosized extracellular vesicles, that play important roles in intercellular immune regulation. They have potential therapeutic utility for neonatal diseases including necrotizing enterocolitis. Breast-milk-derived exosomes have recently shown beneficial effects on intestinal damage in vitro and in vivo. However, the chronological change in breast-milk-derived exosome concentrations after delivery are unclear. METHODS In this prospective study, we enrolled 17 mothers who delivered premature infants admitted to a neonatal intensive care unit in Japan. We measured the consecutive concentrations of breast-milk-derived exosomes in the mothers for 48 weeks after delivery. RESULTS The median concentration of breast-milk-derived exosomes was 1.62 × 108 particles/ml in colostrum, showing a significant decrease after 2 weeks (P < 0.01). There was no association between the exosome concentration in colostrum and maternal perinatal factors including parity, mode of delivery, maternal age, and gestational age at delivery. CONCLUSIONS We concluded that breast-milk-derived exosomes were the richest in colostrum. Our basic data regarding breast-milk-derived exosomes are expected to aid in the clinical application of exosomes for treating neonatal diseases.
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Affiliation(s)
- Motoki Ohta
- Department of Pediatrics, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Shigeki Koshida
- Perinatal Center, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Itsuki Jimbo
- Laboratory of Animal Science, Department of Agricultural and Life Sciences, Kyoto Prefectural University, Kyoto, Japan
| | - Machi Oda
- Laboratory of Animal Science, Department of Agricultural and Life Sciences, Kyoto Prefectural University, Kyoto, Japan.,Laboratory of Animal Science, Department of Applied Biological Sciences, Faculty of Agriculture, Setsunan University - Hirakata Campus, Hirakata, Osaka, Japan
| | - Ryo Inoue
- Laboratory of Animal Science, Department of Agricultural and Life Sciences, Kyoto Prefectural University, Kyoto, Japan.,Laboratory of Animal Science, Department of Applied Biological Sciences, Faculty of Agriculture, Setsunan University - Hirakata Campus, Hirakata, Osaka, Japan
| | | | - Masaki Terahara
- R&D Management Department, Meiji Co., Ltd., Hachiouji, Tokyo, Japan
| | - Yoshitaka Nakamura
- Food Microbiology and Function Research Laboratories, Meiji Co., Ltd., Hachiouji, Tokyo, Japan
| | - Yoshihiro Maruo
- Department of Pediatrics, Shiga University of Medical Science, Otsu, Shiga, Japan
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Ogunnaike M, Wang H, Zempleni J. Bovine mammary alveolar MAC-T cells afford a tool for studies of bovine milk exosomes in drug delivery. Int J Pharm 2021; 610:121263. [PMID: 34742829 DOI: 10.1016/j.ijpharm.2021.121263] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 10/20/2021] [Accepted: 10/31/2021] [Indexed: 12/18/2022]
Abstract
Bovine milk exosomes (BMEs) have attracted attention as vehicles for delivering RNA therapeutics. BMEs originate in mammary alveolar cells. Here, we determined whether bovine mammary alveolar MAC-T cells afford a tool to assess RNA delivery by BMEs. MAC-T cells exosomes (MAC-T BMEs) and BMEs were harvested by differential ultracentrifugation. Exosome size, morphology, microRNA content and marker proteins were assessed using nanoparticle tracking analysis, transmission electron microscopy, real-time PCR and immunoblot analysis, respectively. MAC-T cells were genetically engineered to secrete MAC-T BMEs endogenously labeled with a near-infrared fluorescent protein and tissue distribution was compared to fluorophore-labeled BMEs following intravenous injection in C57BL/6 mice. Morphology and size were similar in MAC-T BMEs and BMEs (94 ± 5.8 nm and 101 ± 4.2 nm, p > 0.05). Both preparations expressed miR-320a, miR-200c and let-7a-5p (positive controls) but not miR-1 (negative control). Exosome marker proteins, CD9, CD63, CD81 and Tsg101, were detected in both MAC-T BMEs and BMEs. Distribution in mouse tissues was similar for both preparations, with liver being the primary accumulation site. Collectively, MAC-T BMEs afford a tool for BMEs-based RNA delivery studies.
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Feng X, Chen X, Zheng X, Zhu H, Qi Q, Liu S, Zhang H, Che J. Latest Trend of Milk Derived Exosomes: Cargos, Functions, and Applications. Front Nutr 2021; 8:747294. [PMID: 34778341 PMCID: PMC8589029 DOI: 10.3389/fnut.2021.747294] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 10/04/2021] [Indexed: 12/12/2022] Open
Abstract
Exosomes are nanosized phospholipid bilayer vesicles released to the extracellular environment. Exosomes from various tissues or cells are being studied and there has been a growing interest in milk exosomes research due to their emerging role as messengers between cells and the fact that it can be produced in large quantities with rich source of milk. Milk derived exosomes (MDEs) contain lipids, microRNAs, proteins, mRNAs as well as DNA. Studies of exosome cargo have been conducted widely in many research areas, especially exosomal miRNAs. In this paper, we reviewed the current knowledge in isolation and identification, cargos, functions mainly in intestinal tract and immunity system of MDEs. Its application as drug carriers and diseases biomarker are also discussed. Furthermore, we also consider critical challenges of MDEs application and provide possible directions for future research.
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Affiliation(s)
- Xin Feng
- School of Life Science and Engineering, Foshan University, Foshan, China
| | - Xiaolin Chen
- School of Life Science and Engineering, Foshan University, Foshan, China
| | - Xucan Zheng
- Foshan Nanhai Poultry Breeding Co., Ltd., Foshan, China
| | - Hui Zhu
- School of Life Science and Engineering, Foshan University, Foshan, China
| | - Qien Qi
- School of Life Science and Engineering, Foshan University, Foshan, China
| | - Shen Liu
- School of Life Science and Engineering, Foshan University, Foshan, China
| | - Huihua Zhang
- School of Life Science and Engineering, Foshan University, Foshan, China
| | - Jianwei Che
- Department of Orthopaedics, Bethune International Peace Hospital, Shijiazhuang, China
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Abstract
Milk supports the growth and development of infants. An increasing number of mostly recent studies have demonstrated that milk contains a hitherto undescribed component called extracellular vesicles (EVs). This presents questions regarding why milk contains EVs and what their function is. Recently, we showed that EVs in human milk expose tissue factor, the protein that triggers coagulation or blood clotting, and that milk-derived EVs promote coagulation. Because bovine milk, which also contains EVs, completely lacks this coagulant activity, important differences are present in the biological functions of human milk-derived EVs between species. In this review, we will summarize the current knowledge regarding the presence and biochemical composition of milk EVs, their function(s) and potential clinical applications such as in probiotics, and the unique problems that milk EVs encounter in vivo, including survival of the gastrointestinal conditions encountered in the newborn. The main focus of this review will be human milk-derived EVs, but when available, we will also include information regarding non-human milk for comparison.
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Affiliation(s)
- Yong Hu
- Laboratory of Experimental Clinical Chemistry and Vesicle Observation Center, Amsterdam University Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands;
- Biomedical Engineering & Physics, Amsterdam University Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Johannes Thaler
- Clinical Division of Haematology and Haemostaseology, Department of Medicine I, Medical University of Vienna, Währinger Gürtel 18–20, 1090 Vienna, Austria;
| | - Rienk Nieuwland
- Laboratory of Experimental Clinical Chemistry and Vesicle Observation Center, Amsterdam University Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands;
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Su C, Tang Y, Shen F, Kang M, Groom K, Wise M, Chamley L, Chen Q. Placental extracellular vesicles retain biological activity after short-term storage (14 days) at 4 °C or room temperature. Placenta 2021; 115:115-120. [PMID: 34600275 DOI: 10.1016/j.placenta.2021.09.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 09/01/2021] [Accepted: 09/21/2021] [Indexed: 11/16/2022]
Abstract
INTRODUCTION To investigate the role of placental extracellular vesicles (EVs), especially in pathological pregnancy, the use of freshly isolated EVs is often limited due to the sporadic and unpredictable availability of placental samples. Therefore, it is important to understand and use optimised storage conditions for placental EVs. In this study, we investigated different conditions for the short-term storage of placental micro- and nano-EVs and examined their biological activity. METHODS Placental EVs were collected from first trimester placentae. EVs were suspended in PBS and aliquoted, and then stored for up to 14 days at room temperature, 4 °C or -20 °C. Total protein and DNA levels were measured at various time points. The ability of stored placental EVs to alter endothelial cell activation was quantified by monocyte adhesion assays. RESULTS There was no difference in the concentration of placental micro- or nano-EVs between each time point, when stored at either room temperature or 4 °C. However, there was a significant loss of placental EVs after storage at -20 °C. There was no difference in protein or DNA levels of placental EVs when stored at either room temperature or 4 °C. Biological activity of placental EVs was retained for up to 14 days at either room temperature or 4 °C measured by monocyte adhesion assays. DISCUSSION We have shown that placental micro- and nano-EVs are stable and retain biological activities following storage in PBS or media for 14 days at either room temperature or 4 °C.
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Affiliation(s)
- Chunlin Su
- The Hospital of Obstetrics & Gynaecology, Fudan University, China; Department of Obstetrics & Gynaecology, University of Auckland, New Zealand
| | - Yunhui Tang
- The Hospital of Obstetrics & Gynaecology, Fudan University, China; Department of Obstetrics & Gynaecology, University of Auckland, New Zealand.
| | - Fanghua Shen
- Department of Obstetrics & Gynaecology, Suzhou Ninth People's Hospital, Suzhou, China; Department of Obstetrics & Gynaecology, University of Auckland, New Zealand
| | - Matt Kang
- Department of Obstetrics & Gynaecology, University of Auckland, New Zealand; Hub for Extracellular Vesicle Investigations, University of Auckland, New Zealand
| | - Katie Groom
- Liggins Institution, University of Auckland, New Zealand
| | - Michelle Wise
- Department of Obstetrics & Gynaecology, University of Auckland, New Zealand
| | - Larry Chamley
- Department of Obstetrics & Gynaecology, University of Auckland, New Zealand; Hub for Extracellular Vesicle Investigations, University of Auckland, New Zealand
| | - Qi Chen
- Department of Obstetrics & Gynaecology, University of Auckland, New Zealand; Hub for Extracellular Vesicle Investigations, University of Auckland, New Zealand.
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Wijenayake S, Eisha S, Tawhidi Z, Pitino MA, Steele MA, Fleming AS, McGowan PO. Comparison of methods for pre-processing, exosome isolation, and RNA extraction in unpasteurized bovine and human milk. PLoS One 2021; 16:e0257633. [PMID: 34591894 PMCID: PMC8483318 DOI: 10.1371/journal.pone.0257633] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 09/04/2021] [Indexed: 02/07/2023] Open
Abstract
Milk is a highly complex, heterogeneous biological fluid that contains non-nutritive, bioactive extracellular vesicles called exosomes. Characterization of milk-derived exosomes (MDEs) is challenging due to the lack of standardized methods that are currently being used for milk pre-processing, storage, and exosome isolation. In this study, we tested: 1) three pre-processing methods to remove cream, fat, cellular debris, and casein proteins from bovine milk to determine whether pre-processing of whole milk prior to long-term storage improves MDE isolations, 2) the suitability of two standard exosome isolation methods for MDE fractionation, and 3) four extraction protocols for obtaining high quality RNA from bovine and human MDEs. MDEs were characterized via Transmission Electron Microscopy (TEM), Nanoparticle Tracking Analysis (NTA), and western immunoblotting for CD9, CD63, and Calnexin protein markers. We also present an optimized method of TEM sample preparation for MDEs. Our results indicate that: 1) Removal of cream and fat globules from unpasteurized bovine milk, prior to long-term storage, improves the MDE yield but not purity, 2) Differential ultracentrifugation (DUC) combined with serial filtration is better suited for bovine MDE isolation compared to ExoQuick (EQ) combined with serial filtration, however both methods were comparable for human milk, and 3) TRIzol LS is better suited for RNA extraction from bovine MDEs isolated by EQ and DUC methods. 4) TRIzol LS, TRIzol+RNA Clean and Concentrator, and TRIzol LS+RNA Clean and Concentrator methods can be used for RNA extractions from human MDEs isolated by EQ, yet the TRIzol LS method is better suited for human MDEs isolated by DUC. The QIAzol + miRNeasy Mini Kit produced the lowest RNA yield for bovine and human MDEs.
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Affiliation(s)
- Sanoji Wijenayake
- Center for Environmental Epigenetics and Development, Department of Biological Sciences, University of Toronto Scarborough, Toronto, Ontario, Canada
| | - Shafinaz Eisha
- Center for Environmental Epigenetics and Development, Department of Biological Sciences, University of Toronto Scarborough, Toronto, Ontario, Canada
- Department of Cell and Systems Biology, University of Toronto, Toronto, Ontario, Canada
| | - Zoya Tawhidi
- Center for Environmental Epigenetics and Development, Department of Biological Sciences, University of Toronto Scarborough, Toronto, Ontario, Canada
| | - Michael A. Pitino
- Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada
- Translational Medicine Program, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Michael A. Steele
- Department of Animal and Poultry Science, University of Guelph, Guelph, Ontario, Canada
| | - Alison S. Fleming
- Department of Psychology, University of Toronto, Mississauga, Mississauga, Ontario, Canada
| | - Patrick O. McGowan
- Center for Environmental Epigenetics and Development, Department of Biological Sciences, University of Toronto Scarborough, Toronto, Ontario, Canada
- Department of Cell and Systems Biology, University of Toronto, Toronto, Ontario, Canada
- Department of Psychology, University of Toronto, Toronto, Ontario, Canada
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada
- * E-mail:
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47
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Tingö L, Ahlberg E, Johansson L, Pedersen SA, Chawla K, Sætrom P, Cione E, Simpson MR. Non-Coding RNAs in Human Breast Milk: A Systematic Review. Front Immunol 2021; 12:725323. [PMID: 34539664 PMCID: PMC8440964 DOI: 10.3389/fimmu.2021.725323] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 08/13/2021] [Indexed: 12/12/2022] Open
Abstract
Breast milk is the primary source of nutrition and hydration for the newborn infant but also plays an important role in the child’s first immune defense. Additionally, several breast milk factors have been implicated in immune-related health outcomes later in life, including immunoglobulins, cytokines, chemokines, growth factors and, more recently, non-coding RNA (ncRNA) species. In this systematic review, we provide a comprehensive summary of the current literature on endogenous ncRNAs found in human breast milk. Thirty (30) relevant studies were identified and, whilst the majority studies focused on microRNAs (miRNAs), there is evidence that breast milk contains high quantities of RNA which also include long-coding RNAs, circular RNAs, as well as other short RNAs and fragmented tRNA and rRNAs. Among studies investigating miRNAs, miR-148a-3p, miR-30a/d-5p, miR-22-3p, miR-146b-5p, miR-200a/c-3p, and the 5p end of the let-7 miRNAs were commonly reported among the top 10 miRNAs in the cell, lipid, and skim milk fractions of breast milk. Methodological difference and small sample sizes limit the possibility of conclusively identifying which maternal and infant characteristics affect the miRNA profile. The highly expressed miRNAs were generally reported to be similar across lactational stage, milk fraction, maternal and infant characteristics, or infant growth and health. All the same, individual studies identify potential differences in miRNA expression levels which should be confirmed by future studies. Stability, uptake, and physiological functions of miRNAs were also considered in several studies. Breast milk miRNAs are relatively resistant to a range of harsh conditions and uptake experiments suggest that extracellular vesicles containing miRNAs and circular RNAs can be taken up by intestinal epithelial cells. Although the evidence regarding the functional effect of breast milk miRNAs is limited, the predicted functions range from metabolic and biosynthetic processes to signaling pathways, cellular adhesion, communication, growth, and differentiation. Finally, this systematic review highlights some of the methodological challenges and knowledge gaps which can help direct future research in this field. In particular, it is important to further investigate the bioavailability of miRNAs in different milk fractions, and to characterize other ncRNAs which are largely unstudied.
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Affiliation(s)
- Lina Tingö
- Division of Inflammation and Infection, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden.,Örebro University Food and Health Programme, School of Medical Sciences, Örebro University, Örebro, Sweden
| | - Emelie Ahlberg
- Division of Inflammation and Infection, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Lovisa Johansson
- Division of Neurobiology, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Sindre Andre Pedersen
- Library Section for Medicine and Health Sciences, NTNU Norwegian University of Science and Technology, Trondheim, Norway
| | - Konika Chawla
- Department of Clinical and Molecular Medicine, NTNU Norwegian University of Science and Technology, Trondheim, Norway.,Bioinformatics Core Facility - BioCore, NTNU Norwegian University of Science and Technology, Trondheim, Norway.,K.G. Jebsen Center for Genetic Epidemiology, NTNU Norwegian University of Science and Technology, Trondheim, Norway
| | - Pål Sætrom
- Department of Clinical and Molecular Medicine, NTNU Norwegian University of Science and Technology, Trondheim, Norway.,Bioinformatics Core Facility - BioCore, NTNU Norwegian University of Science and Technology, Trondheim, Norway.,K.G. Jebsen Center for Genetic Epidemiology, NTNU Norwegian University of Science and Technology, Trondheim, Norway.,Department of Computer Science, NTNU Norwegian University of Science and Technology, Trondheim, Norway
| | - Erika Cione
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy
| | - Melanie Rae Simpson
- Department of Public Health and Nursing, NTNU Norwegian University of Science and Technology, Trondheim, Norway.,Clinic of Laboratory Medicine, St. Olavs Hospital, Trondheim, Norway
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Khanam A, Yu J, Zempleni J. Class A scavenger receptor-1/2 facilitates the uptake of bovine milk exosomes in murine bone marrow-derived macrophages and C57BL/6J mice. Am J Physiol Cell Physiol 2021; 321:C607-C614. [PMID: 34378992 DOI: 10.1152/ajpcell.00222.2021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Bovine milk exosomes (BMEs) are being explored in drug delivery despite their rapid elimination by macrophages. We aimed at identifying the BME transporter in murine bone marrow-derived macrophages (BMDMs). Fluorophore-labeled BMEs were used in transport studies in BMDMs from C57BL/6J and class A scavenger receptor type 1/2 (CASR-1/2) knockout mice and tissue accumulation in macrophage-depleted C57BL/6J mice. Parametric and non-parametric statistics tests for pairwise and multiple comparisons were used. Chemical inhibitors of phagocytosis by cytochalasin D led to a 69 ± 18% decrease in BME uptake compared to controls (P ˂ 0.05), whereas inhibitors of endocytic pathways other than phagocytosis had a modest effect on uptake (P > 0.05). Inhibitors of class A scavenger receptors (CASRs) including CASR-1/2 caused a 70% decrease in BME uptake (P ˂ 0.05). The uptake of BMEs by BMDMs from CASR-1/2 knockout mice was smaller by 58 ± 23% compared to wild-type controls (P ˂ 0.05). Macrophage depletion by clodronate caused a more than 44% decrease in BME uptake in the spleen and lungs (P ˂ 0.05) whereas the decrease observed in liver was not statistically significant. In conclusion, CASR-1/2 facilitates the uptake of BMEs in BMDMs and C57BL/6J mice.
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Affiliation(s)
- Afsana Khanam
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE, United States
| | - Jiujiu Yu
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE, United States
| | - Janos Zempleni
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE, United States
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Ong SL, Blenkiron C, Haines S, Acevedo-Fani A, Leite JAS, Zempleni J, Anderson RC, McCann MJ. Ruminant Milk-Derived Extracellular Vesicles: A Nutritional and Therapeutic Opportunity? Nutrients 2021; 13:2505. [PMID: 34444665 PMCID: PMC8398904 DOI: 10.3390/nu13082505] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/13/2021] [Accepted: 07/19/2021] [Indexed: 12/12/2022] Open
Abstract
Milk has been shown to contain a specific fraction of extracellular particles that are reported to resist digestion and are purposefully packaged with lipids, proteins, and nucleic acids to exert specific biological effects. These findings suggest that these particles may have a role in the quality of infant nutrition, particularly in the early phase of life when many of the foundations of an infant's potential for health and overall wellness are established. However, much of the current research focuses on human or cow milk only, and there is a knowledge gap in how milk from other species, which may be more commonly consumed in different regions, could also have these reported biological effects. Our review provides a summary of the studies into the extracellular particle fraction of milk from a wider range of ruminants and pseudo-ruminants, focusing on how this fraction is isolated and characterised, the stability and uptake of the fraction, and the reported biological effects of these fractions in a range of model systems. As the individual composition of milk from different species is known to differ, we propose that the extracellular particle fraction of milk from non-traditional and minority species may also have important and distinct biological properties that warrant further study.
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Affiliation(s)
- Siew Ling Ong
- Smart Foods Innovation Centre of Excellence, Te Ohu Rangahau Kai, AgResearch Ltd., Massey University Campus, Palmerston North 4410, New Zealand;
| | - Cherie Blenkiron
- Department of Molecular Medicine and Pathology, Faculty of Medical and Health Sciences, University of Auckland, Auckland 1051, New Zealand;
- Auckland Cancer Society Research Centre, University of Auckland, Auckland 1051, New Zealand
| | - Stephen Haines
- Beyond Food Innovation Centre of Excellence, AgResearch Ltd., Lincoln 7674, New Zealand;
| | - Alejandra Acevedo-Fani
- Riddet Institute, Massey University, Palmerston North 4442, New Zealand; (A.A.-F.); (J.A.S.L.)
| | - Juliana A. S. Leite
- Riddet Institute, Massey University, Palmerston North 4442, New Zealand; (A.A.-F.); (J.A.S.L.)
| | - Janos Zempleni
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE 68583, USA;
| | - Rachel C. Anderson
- Smart Foods Innovation Centre of Excellence, Te Ohu Rangahau Kai, AgResearch Ltd., Massey University Campus, Palmerston North 4410, New Zealand;
- Riddet Institute, Massey University, Palmerston North 4442, New Zealand; (A.A.-F.); (J.A.S.L.)
| | - Mark J. McCann
- Smart Foods Innovation Centre of Excellence, Te Ohu Rangahau Kai, AgResearch Ltd., Massey University Campus, Palmerston North 4410, New Zealand;
- Riddet Institute, Massey University, Palmerston North 4442, New Zealand; (A.A.-F.); (J.A.S.L.)
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50
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Sukreet S, Braga CP, An TT, Adamec J, Cui J, Trible B, Zempleni J. Isolation of extracellular vesicles from byproducts of cheesemaking by tangential flow filtration yields heterogeneous fractions of nanoparticles. J Dairy Sci 2021; 104:9478-9493. [PMID: 34218910 DOI: 10.3168/jds.2021-20300] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 05/21/2021] [Indexed: 12/12/2022]
Abstract
Extracellular vesicles (EV) in milk, particularly exosomes, have attracted considerable attention as bioactive food compounds and for their use in drug delivery. The utility of small EV in milk (sMEV) as an animal feed additive and in drug delivery would be enhanced by cost-effective large-scale protocols for the enrichment of sMEV from byproducts in dairy plants. Here, we tested the hypothesis that sMEV may be enriched from byproducts of cheesemaking by tangential flow filtration (EV-FF) and that the sMEV have properties similar to sMEV prepared by ultracentrifugation (sMEV-UC). Three fractions of EV were purified from the whey fraction of cottage cheese making by using EV-FF that passed through a membrane with a 50-kDa cutoff (50 penetrate; 50P), and subfractions of 50P that were retained (100 retentate; 100R) or passed through (100 penetrate; 100P) a membrane with a 100-kDa cutoff; sMEV-UC controls were prepared by serial ultracentrifugation. The abundance of sMEV (<200 nm) was less than 0.3% in EV-FF compared with sMEV-UC (1012/mL of milk). Despite the low EV count, the protein content (mg/mL) of 100R (63 ± 0.02; ± standard deviation) was higher than that of 50P (0.75 ± 0.10), 100P (0.65 ± 0.40), and sMEV-UC (27 ± 0.02). There were 17, 14, 35, and 75 distinct proteins detected by nontargeted mass spectrometry analysis in 50P, 100R, 100P, and sMEV-UC, respectively. Exosome markers CD9, CD63, CD81, HSP-70, PDCD6IP, and TSG101 were detected in control sMEV-UC but not in EV-FF by using targeted mass spectrometry and immunoblot analyses. Negative exosome markers, APOB, β-integrin, and histone H3 were below the limit of detection in EV-FF and control sMEV-UC analyzed by immunoblotting. The abundance of the major milk fat globule protein butyrophilin showed the following pattern: 100R ≫ 100P = 50P > sMEV-UC. More than 100 mature microRNA were detected in sMEV-UC by using sequencing analysis, compared with 36 to 60 microRNA in EV-FF. Only 100R and sMEV-UC yielded mRNA in quantities and qualities sufficient for sequencing analysis; an average of 276,000 and 838,000 reads were mapped to approximately 14,600 and 18,500 genes in 100R and sMEV-UC, respectively. In principal component analysis, microRNA, mRNA, and protein in EV-FF preparations clustered separately from control sMEV-UC. We conclude that under the conditions used here, flow filtration yields a heterogeneous population of milk EV.
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Affiliation(s)
- Sonal Sukreet
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln 68583
| | | | - Thuy T An
- Department of Computer Science and Engineering, University of Nebraska-Lincoln, Lincoln 68588
| | - Jiri Adamec
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln 68588
| | - Juan Cui
- Department of Computer Science and Engineering, University of Nebraska-Lincoln, Lincoln 68588
| | | | - Janos Zempleni
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln 68583.
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