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https://www.readbyqxmd.com/read/28933365/milk-s-role-as-an-epigenetic-regulator-in-health-and-disease
#1
REVIEW
Bodo C Melnik, Gerd Schmitz
It is the intention of this review to characterize milk's role as an epigenetic regulator in health and disease. Based on translational research, we identify milk as a major epigenetic modulator of gene expression of the milk recipient. Milk is presented as an epigenetic "doping system" of mammalian development. Milk exosome-derived micro-ribonucleic acids (miRNAs) that target DNA methyltransferases are implicated to play the key role in the upregulation of developmental genes such as FTO, INS, and IGF1. In contrast to miRNA-deficient infant formula, breastfeeding via physiological miRNA transfer provides the appropriate signals for adequate epigenetic programming of the newborn infant...
March 15, 2017: Diseases (Basel)
https://www.readbyqxmd.com/read/28894420/exosomes-as-potential-biomarkers-and-targeted-therapy-in-colorectal-cancer-a-mini-review
#2
REVIEW
Kha Wai Hon, Nadiah Abu, Nurul-Syakima Ab Mutalib, Rahman Jamal
The number of colorectal cancer (CRC) cases have increased gradually year by year. In fact, CRC is one of the most widely diagnosed cancer in men and women today. This disease is usually diagnosed at a later stage of the development, and by then, the chance of survival has declined significantly. Even though substantial progress has been made in understanding the basic molecular mechanism of CRC, there is still a lack of understanding in using the available information for diagnosing CRC effectively. Liquid biopsies are minimally invasive and have become the epitome of a good screening source for stage-specific diagnosis, measuring drug response and severity of the disease...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28833502/tumor-derived-exosomes-potential-biomarker-or-therapeutic-target-in-breast-cancer
#3
AmirReza Hesari, Seyed Ali Golrokh Moghadam, AmirShayan Siasi, Mahsa Rahmani, Negin Behboodi, Azam Rastgar-Moghadam, Gordon A Ferns, Faezeh Ghasemi, Amir Avan
Exosomes are released by normal and tumour cells, including those involved in breast cancer, and provide a means of intercellular communications. Exosomes with diameters ranging between 30-150 nm are involved in transferring biological information, via various lipids, proteins, different forms of RNAs, and DNA from one cell to another, and this can result in reprogramming of recipient cell functions. These vesicles are present in all body fluids, e.g., blood plasma/serum, semen, saliva, cerebrospinal fluid, breast milk, and urine...
August 18, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28828662/in-vivo-tracking-of-extracellular-vesicles-in-mice-using-fusion-protein-comprising-lactadherin-and-gaussia-luciferase
#4
Yuki Takahashi, Makiya Nishikawa, Yoshinobu Takakura
Extracellular vesicles (EVs) are cell-derived vesicles comprising a lipid bilayer and are found in body fluids, such as blood, sweat, and urine. As EVs, especially exosomes, function as endogenous intercellular delivery tools, their roles in various biological events have been extensively investigated. In addition, they are expected to become safe and effective drug delivery systems (DDS) because of their intrinsic nature. In the development of EV-based DDS, as well as in the investigation of the biological functions of EVs, it is important to analyze the in vivo behavior of EVs by tracking them...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28740388/role-of-tim-4-in-exosome-dependent-entry-of-hiv-1-into-human-immune-cells
#5
Brian Sims, Anitra L Farrow, Sparkle D Williams, Anju Bansal, Alexandre Krendelchtchikov, Linlin Gu, Qiana L Matthews
Exosomes, 30-200 nm nanostructures secreted from donor cells and internalized by recipient cells, can play an important role in the cellular entry of some viruses. These microvesicles are actively secreted into various body fluids, including blood, urine, saliva, cerebrospinal fluid, and breast milk. We successfully isolated exosomes from human breast milk and plasma. The size and concentration of purified exosomes were measured by nanoparticle tracking, while Western blotting confirmed the presence of the exosomal-associated proteins CD9 and CD63, clathrin, and T cell immunoglobulin and mucin proteins (TIMs)...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28725021/bovine-milk-derived-exosomes-from-colostrum-are-enriched-with-proteins-implicated-in-immune-response-and-growth
#6
Monisha Samuel, David Chisanga, Michael Liem, Shivakumar Keerthikumar, Sushma Anand, Ching-Seng Ang, Christopher G Adda, Ellen Versteegen, Markandeya Jois, Suresh Mathivanan
Exosomes are extracellular vesicles secreted by multiple cell types into the extracellular space. They contain cell-state specific cargos which often reflects the (patho)physiological condition of the cells/organism. Milk contains high amounts of exosomes and it is unclear whether their cargo is altered based on the lactation stage of the organism. Here, we isolated exosomes from bovine milk that were obtained at various stages of lactation and examined the content by quantitative proteomics. Exosomes were isolated by OptiPrep density gradient centrifugation from milk obtained from cow after 24, 48 and 72 h post calving...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28717422/exosomes-purified-from-a-single-cell-type-have-diverse-morphology
#7
Davide Zabeo, Aleksander Cvjetkovic, Cecilia Lässer, Martin Schorb, Jan Lötvall, Johanna L Höög
Extracellular vesicles (EVs) are produced by all known organisms and are important for cell communication and physiology. Great morphological diversity has been described regarding EVs found in body fluids such as blood plasma, breast milk, and ejaculate. However, a detailed morphological analysis has never been performed on exosomes when purified from a single cell type. In this study we analysed and quantified, via multiple electron microscopy techniques, the morphology of exosomes purified from the human mast cell line HMC-1...
2017: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/28688106/human-milk-exosomes-and-their-micrornas-survive-digestion-in-vitro-and-are-taken-up-by-human-intestinal-cells
#8
Yalin Liao, Xiaogu Du, Jie Li, Bo Lönnerdal
SCOPE: Human milk exosomes provide a natural means of genetic material transfer to infants; however, the effect of gastric/pancreatic digestion milk exosomes stability and their microRNA content is largely unknown. METHODS AND RESULTS: We took a simulated gastric/pancreatic digestion protocol to perform in vitro digestion of milk exosomes, explore intestinal epithelial uptake, and further elucidate microRNA responses to digestion at early-, mid-, late lactation by massive parallel sequencing...
July 7, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28643865/characterization-and-biological-function-of-milk-derived-mirnas
#9
Regina Golan-Gerstl, Yaffa Elbaum Shiff, Vardit Moshayoff, Daniel Schecter, Dena Leshkowitz, Shimon Reif
SCOPE: Breastfeeding is associated with reduced risk of infection, immune-mediated disorders, obesity, and even cancer. Recently it was found that breast milk contains a variety of microRNAs (miRNAs) in the skim and fat layer that can be transferred to infants, and appear to play important roles in those biological functions. METHODS AND RESULTS: This study applied next generation sequencing and quantitative real-time PCR analysis to determine the miRNA expression profile of the skim and fat fraction of human, goat, and bovine milk as well as infant formulas...
June 23, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28615713/exosomal-micrornas-in-giant-panda-ailuropoda-melanoleuca-breast-milk-potential-maternal-regulators-for-the-development-of-newborn-cubs
#10
Jideng Ma, Chengdong Wang, Keren Long, Hemin Zhang, Jinwei Zhang, Long Jin, Qianzi Tang, Anan Jiang, Xun Wang, Shilin Tian, Li Chen, Dafang He, Desheng Li, Shan Huang, Zhi Jiang, Mingzhou Li
The physiological role of miRNAs is widely understood to include fine-tuning the post-transcriptional regulation of a wide array of biological processes. Extensive studies have indicated that exosomal miRNAs in the bodily fluids of various organisms can be transferred between living cells for the delivery of gene silencing signals. Here, we illustrated the expression characteristics of exosomal miRNAs in giant panda breast milk during distinct lactation periods and highlighted the enrichment of immune- and development-related endogenous miRNAs in colostral and mature giant panda milk...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28466459/curcumin-encapsulated-in-milk-exosomes-resists-human-digestion-and-possesses-enhanced-intestinal-permeability-in-vitro
#11
Monika Vashisht, Payal Rani, Suneel Kumar Onteru, Dheer Singh
Exosomes, the extracellular secretary nano-vesicles, act as carriers of biomolecules to the target cells. They exhibit several attributes of an efficient drug delivery system. Curcumin, despite having numerous bioactive and therapeutic properties, has limited pharmaceutical use due to its poor water solubility, stability, and low systemic bioavailability. Hence, this study aims to enhance the therapeutic potential of curcumin, a model hydrophobic drug, by its encapsulation into milk exosomes. In the present study, we investigated the stability of free curcumin and exosomal curcumin in PBS and in vitro digestive processes...
May 2, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28407805/revelation-of-mrnas-and-proteins-in-porcine-milk-exosomes-by-transcriptomic-and-proteomic-analysis
#12
Ting Chen, Qian-Yun Xi, Jia-Jie Sun, Rui-Song Ye, Xiao Cheng, Rui-Ping Sun, Song-Bo Wang, Gang Shu, Li-Na Wang, Xiao-Tong Zhu, Qing-Yan Jiang, Yong-Liang Zhang
BACKGROUND: Milk is a complex liquid that provides nutrition to newborns. Recent reports demonstrated that milk is enriched in maternal-derived exosomes that are involved in fetal physiological and pathological conditions by transmission of exosomal mRNAs, miRNAs and proteins. Until now, there is no such research relevant to exosomal mRNAs and proteins in porcine milk, therefore, we have attempted to investigate porcine milk exosomal mRNAs and proteins using RNA-sequencing and proteomic analysis...
April 13, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28300659/milk-derived-exosomes-for-oral-delivery-of-paclitaxel
#13
Ashish K Agrawal, Farrukh Aqil, Jeyaprakash Jeyabalan, Wendy A Spencer, Joshua Beck, Beth W Gachuki, Sara S Alhakeem, Karine Oben, Radha Munagala, Subbarao Bondada, Ramesh C Gupta
In this report milk-derived exosomes have been investigated for oral delivery of the chemotherapeutic drug paclitaxel (PAC) as an alternative to conventional i.v. therapy for improved efficacy and reduced toxicity. PAC-loaded exosomes (ExoPAC) were found to have a particle size of ~108 nm, a narrow particle size distribution (PDI ~0.190), zeta potential (~ -7 mV) and a practical loading efficiency of ~8%. Exosomes and ExoPAC exhibited excellent stability in the presence of simulated-gastrointestinal fluids, and during the storage at -80 °C...
March 11, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28290293/comparative-proteomic-analysis-of-milk-derived-exosomes-in-human-and-bovine-colostrum-and-mature-milk-samples-by-itraq-coupled-lc-ms-ms
#14
Mei Yang, Dahe Song, Xueyan Cao, Rina Wu, Biao Liu, Wenhui Ye, Junrui Wu, Xiqing Yue
Exosomes are membranous vesicles found in biological fluids with important functions. However, milk-derived exosome proteins from humans and bovines have not been studied in detail. The advanced iTRAQ proteomic approach was used to analyze milk-derived exosomes in human and bovine colostrum and mature milk samples. A total of 920 milk exosome proteins were identified and quantified. Among these, 575 differentially expressed exosome proteins (P<0.05) were found. Multivariate analysis, gene ontology (GO) annotation and the KEGG pathway were used to interpret the identified proteins...
February 2017: Food Research International
https://www.readbyqxmd.com/read/28257101/exosomes-from-garbage-bins-to-promising-therapeutic-targets
#15
REVIEW
Mohammed H Rashed, Emine Bayraktar, Gouda K Helal, Mohamed F Abd-Ellah, Paola Amero, Arturo Chavez-Reyes, Cristian Rodriguez-Aguayo
Intercellular communication via cell-released vesicles is a very important process for both normal and tumor cells. Cell communication may involve exosomes, small vesicles of endocytic origin that are released by all types of cells and are found in abundance in body fluids, including blood, saliva, urine, and breast milk. Exosomes have been shown to carry lipids, proteins, mRNAs, non-coding RNAs, and even DNA out of cells. They are more than simply molecular garbage bins, however, in that the molecules they carry can be taken up by other cells...
March 2, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28255126/-regulatory-effect-of-exosome-on-cell-apoptosis
#16
Xin Li, Zuocheng Yang
Exosome, a nano-grade biological membrane structure, is secreted by multiple cells, widely distributing in saliva, plasma, milk and other body fluid. It can directly and indirectly take part in the biological information transcription between the receptor cells and their micro-environment. Recent studies have demonstrated that exosomes play pivotal roles in the occurrence and development of viral infectious diseases, tumors and other cell apoptosis related diseases via regulating the apoptosis in various ways...
February 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28202351/exosomal-formulation-of-anthocyanidins-against-multiple-cancer-types
#17
COMPARATIVE STUDY
Radha Munagala, Farrukh Aqil, Jeyaprakash Jeyabalan, Ashish K Agrawal, Ashley M Mudd, Al Hassan Kyakulaga, Inder P Singh, Manicka V Vadhanam, Ramesh C Gupta
Over the last two decades, berries and berry bioactives, particularly anthocyanins and their aglycones anthocyanidins (Anthos) have demonstrated excellent anti-oxidant, anti-proliferative, apoptotic and anti-inflammatory properties. However, their physicochemical and pharmacokinetic limitations such as, low permeability, and poor oral bioavailability are considered as unfavorable properties for development as drugs. Therefore there is a need to develop systems for efficient systemic delivery and robust bioavailability...
May 1, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28188035/breast-milk-derived-exosomes-promote-intestinal-epithelial-cell-growth
#18
Alison Hock, Hiromu Miyake, Bo Li, Carol Lee, Leonardo Ermini, Yuhki Koike, Yong Chen, Pekka Määttänen, Augusto Zani, Agostino Pierro
BACKGROUND: Breast milk administration prevents necrotizing enterocolitis (NEC). However, the mechanism remains unclear. Exosomes are cell-derived vesicles highly present in human milk and regulate intercellular signaling, inflammation, and immune response. We hypothesized that milk-derived exosomes beneficially affect intestinal epithelial cells. METHODS: Rat milk was collected, and exosomes were isolated using ExoQuick reagent and visualized by Nanoparticle Tracking Analysis...
May 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28111361/tracing-cellular-origin-of-human-exosomes-using-multiplex-proximity-extension-assays
#19
Pia Larssen, Lotta Wik, Paulo Czarnewski, Maria Eldh, Liza Löf, K Göran Ronquist, Louise Dubois, Eva Freyhult, Caroline J Gallant, Johan Oelrich, Anders Larsson, Gunnar Ronquist, Eduardo J Villablanca, Ulf Landegren, Susanne Gabrielsson, Masood Kamali-Moghaddam
Extracellular vesicles (EVs) are membrane-coated objects such as exosomes and microvesicles, released by many cell-types. Their presence in body fluids and the variable surface composition and content render them attractive potential biomarkers. The ability to determine their cellular origin could greatly move the field forward. We used multiplex proximity extension assays (PEA) to identify with high specificity and sensitivity the protein profiles of exosomes of different origins, including seven cell lines and two different body fluids...
March 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28096131/nutrition-micrornas-and-human-health
#20
REVIEW
Juan Cui, Beiyan Zhou, Sharon A Ross, Janos Zempleni
MicroRNAs (miRs) hybridize with complementary sequences in mRNA and silence genes by destabilizing mRNA or preventing translation of mRNA. Over 60% of human protein-coding genes are regulated by miRs, and 1881 high-confidence miRs are encoded in the human genome. Evidence suggests that miRs not only are synthesized endogenously, but also might be obtained from dietary sources, and that food compounds alter the expression of endogenous miR genes. The main food matrices for studies of biological activity of dietary miRs include plant foods and cow milk...
January 2017: Advances in Nutrition
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