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Salivary exosomes

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https://www.readbyqxmd.com/read/29137278/comprehensive-microrna-sequencing-of-exosomes-derived-from-head-and-neck-carcinoma-cells-in-vitro-reveals-common-secretion-profiles-and-potential-utility-as-salivary-biomarkers
#1
Scott Langevin, Damaris Kuhnell, Tess Parry, Jacek Biesiada, Shouxiong Huang, Trisha Wise-Draper, Keith Casper, Xiang Zhang, Mario Medvedovic, Susan Kasper
Exosomes are nano-scale, membrane encapsulated vesicles that are released by cells into the extracellular space and function as intercellular signaling vectors through horizontal transfer of biologic molecules, including microRNA (miRNA). There is evidence that cancer-derived exosomes enable the tumor to manipulate its microenvironment, thus contributing to the capacity of the tumor for immune evasion, growth, invasion, and metastatic spread. The objective of this study was to characterize differential secretion of exosomal miRNA by head and neck squamous cell carcinoma (HNSCC) and identify a set of candidate biomarkers that could be detected in non-invasive saliva samples...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29109770/epiregulin-promotes-lung-metastasis-of-salivary-adenoid-cystic-carcinoma
#2
Wen-Wen Yang, Lin-Qian Yang, Fei Zhao, Chu-Wen Chen, Li-Hua Xu, Jia Fu, Sheng-Lin Li, Xi-Yuan Ge
Salivary adenoid cystic carcinoma (SACC) is a peculiar malignant tumor, characterized by its slow but inexorable growth, with a high incidence of lung metastasis and poor prognosis. Here, we show the upregulated expression of EGFR ligand epiregulin in a subset of SACC cells correlates with lung metastasis and unfavorable outcome in patients with SACC. We found that upregulation of epiregulin in SACC cells induced epithelial-mesenchymal transition by regulating GLI1/E-cadherin. Elevated epiregulin increased the expression of pro-angiogenic factors, such as VEGFA, bFGF, and IL-8...
2017: Theranostics
https://www.readbyqxmd.com/read/29057556/tumor-derived-exosomes-enhance-invasion-and-metastasis-of-salivary-adenoid-cystic-carcinoma-cells
#3
Jin Hou, Fangyuan Wang, Xiaohao Liu, Mengyang Song, Xuemin Yin
OBJECTIVES: Tumor-derived exosomes (TDE) have been shown to participate in different steps of the dissemination of cancer cells. However, the role of salivary adenoid cystic carcinoma-derived (SACC-derived) exosomes had not been documented in SACC. The study aims to explore the functions of SACC-derived TDE in SACC progression and investigate potential mechanisms. METHODS: Salivary adenoid cystic carcinoma cell line SACC-83 was used to generate TDE. Afterward, SACC-83 or HUVECs were cocultured with or without TDE...
October 23, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/29054268/saliva-exosomics-in-cancer-molecular-characterization-of-cancer-derived-exosomes-in-saliva
#4
Taichiro Nonaka, David T W Wong
Exosomes are small membrane vesicles of endocytic origin that are secreted by most cells and detected in saliva. Pathophysiological roles for salivary exosomes are beginning to be recognized in diseases including cancer, highlighting potential biomarkers and biological functions. Since early detection of cancer is vital for successful treatment, salivary exosomes would be advantageous in achieving a better survival rate due to their ready availability and noninvasiveness. The use of salivary exosomes may therefore be promising in the accurate detection of premalignant lesions and early-stage cancers, also for better our understanding of the molecular basis of tumorigenesis...
2017: Enzymes
https://www.readbyqxmd.com/read/28816640/exosomal-microrna-communication-between-tissues-during-organogenesis
#5
Toru Hayashi, Matthew P Hoffman
Epithelial-mesenchymal interactions are required to coordinate cell proliferation, patterning, and functional differentiation of multiple cell types in a developing organ. This exquisite coordination is dependent on various secreted molecules that provide developmental signals to mediate these tissue interactions. Recently, it was reported that mature mesenchymal-derived microRNAs (miRNAs) in the fetal mouse salivary gland are loaded into exosomes, and transported to the epithelium where they influence progenitor cell proliferation...
August 17, 2017: RNA Biology
https://www.readbyqxmd.com/read/28783097/role-of-salivary-biomarkers-in-detection-of-cardiovascular-diseases-cvd
#6
REVIEW
Saad Abdul Rehman, Zohaib Khurshid, Fayez Hussain Niazi, Mustafa Naseem, Hamed Al Waddani, Haafsa Arshad Sahibzada, Rabia Sannam Khan
Human whole mouth saliva (WMS) is secreted by salivary glands, namely parotid, submandibular/sublingual and other minor glands of the oral cavity. It is secreted in a systematic way, and contain informative proteins and peptides for the early detection of contagious diseases and organ-related diseases. The role of WMS as a liquid biopsy for the detection of cardiovascular diseases (CVD) through Myoglobin (MYO), Cardiac troponin I (cTnI), Creatine phosphokinase MB (CK-MB), Myeloperoxidase (MPO), brain natriuretic peptide (NT-proBNP), Exosomal miRNA, C-Reactive Protein (CRP), Matrix metalloproteinase-8 (MMP-8), MMP-9 and tissue inhibitor of MMP-8 (TIMP-1), leukotriene B4 has been well reported in last decade, that have been reviewed in the literature comprehensively below...
August 7, 2017: Proteomes
https://www.readbyqxmd.com/read/28768999/characterization-of-membrane-integrity-and-morphological-stability-of-human-salivary-exosomes
#7
Nahoko Kumeda, Yuko Ogawa, Yoshihiro Akimoto, Hayato Kawakami, Masafumi Tsujimoto, Ryohei Yanoshita
Exosomes are derived from various sources, including primary and cultured cell lines and body fluids. It is now evident that they are important for communication between cells. They have, therefore, been proposed as potential carriers to deliver drugs to specific sites. In this study, we examined stability of exosomes derived from human saliva. Exosomes were stored at 4°C for up to 20 months and their membrane integrity assessed. Several exosomal markers, such as dipeptidyl peptidase IV (DPP IV; membrane marker) and programmed cell death 6-interacting protein (Alix, lumen marker), were retained intact after 20 months storage at 4°C...
2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28523434/salivary-exosomal-psma7-a-promising-biomarker-of-inflammatory-bowel-disease
#8
Xiaowen Zheng, Feng Chen, Qian Zhang, Yulan Liu, Peng You, Shan Sun, Jiuxiang Lin, Ning Chen
Inflammatory bowel disease (IBD) is an intestinal immune-dysfunctional disease worldwide whose prevalence increasing in Asia including China. It is a chronic disease of the gastrointestinal tract with unknown cause. Exosomes are small vesicles in various body fluids. They have diameters of 40-120 nm, and one of their functions is long-distance transfer of various substances. In this study, we investigated the contents of salivary exosomes in patients with IBD and in healthy controls to explore a new biomarker in patients with IBD...
May 18, 2017: Protein & Cell
https://www.readbyqxmd.com/read/28473453/in-silico-target-network-analysis-of-de-novo-discovered-tick-saliva-specific-micrornas-reveals-important-combinatorial-effects-in-their-interference-with-vertebrate-host-physiology
#9
Michael Hackenberg, David Langenberger, Alexandra Schwarz, Jan Erhart, Michail Kotsyfakis
The hard tick Ixodes ricinus is an important disease vector whose salivary secretions mediate blood-feeding success on vertebrate hosts, including humans. Here we describe the expression profiles and downstream analysis of de novo-discovered microRNAs (miRNAs) expressed in I. ricinus salivary glands and saliva. Eleven tick-derived libraries were sequenced to produce 67,375,557 Illumina reads. De novo prediction yielded 67 bona fide miRNAs out of which 35 are currently not present in miRBase. We report for the first time the presence of microRNAs in tick saliva, obtaining furthermore molecular indicators that those might be of exosomal origin...
August 2017: RNA
https://www.readbyqxmd.com/read/28073007/mesenchymal-microrna-function-branches-out
#10
COMMENT
Huojun Cao, Liu Hong, Brad A Amendt
Significant amounts of microRNAs (miRs) are detected in exosomes, but their function during fetal development is poorly understood. In this issue of Developmental Cell, Hayashi et al. (2017) show that exosomal miRs secreted by mesenchymal cells can regulate epithelial KIT(+) progenitor cell expansion during murine salivary gland organogenesis.
January 9, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28041903/exosomal-microrna-transport-from-salivary-mesenchyme-regulates-epithelial-progenitor-expansion-during-organogenesis
#11
Toru Hayashi, Isabelle M A Lombaert, Belinda R Hauser, Vaishali N Patel, Matthew P Hoffman
Epithelial-mesenchymal interactions involve fundamental communication between tissues during organogenesis and are primarily regulated by growth factors and extracellular matrix. It is unclear whether RNA-containing exosomes are mobile genetic signals regulating epithelial-mesenchymal interactions. Here we identify that exosomes loaded with mesenchyme-specific mature microRNA contribute mobile genetic signals from mesenchyme to epithelium. The mature mesenchymal miR-133b-3p, loaded into exosomes, was transported from mesenchyme to the salivary epithelium, which did not express primary miR-133b-3p...
January 9, 2017: Developmental Cell
https://www.readbyqxmd.com/read/27978919/-current-advance-in-saliva-derived-exosome-study
#12
Y Zhao, L Y Yin, R R Bi, P Ma, S B Li
There is growing interest in the whole saliva as a diagnostic fluid because of the relatively simple and non-invasive collection. Research on salivary proteomic and genomic has greatly facilitated the diagnosis and therapy of oral diseases, also revealed the molecular mechanism of the diseases. Saliva-derived exosome as a new source, with various molecular constituents of their cells of origin, including proteins, mRNA and miRNA might serve as potential biomarker. This article reviews the biological properties of saliva exosome, its separation and other aspects associated with disease...
December 9, 2016: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://www.readbyqxmd.com/read/27895106/saliva-exosomes-from-pancreatic-tumor-bearing-mice-modulate-nk-cell-phenotype-and-antitumor-cytotoxicity
#13
Stergios Katsiougiannis, David Chia, Yong Kim, Ram P Singh, David T W Wong
Tumor exosomes are emerging as antitumor immunity regulators; however, their effects on secondary exosome secretion by distal organs have not been explored. We have previously demonstrated that suppression of exosomes at the distal tumor site of pancreatic ductal adenocarcinoma (PDAC) ablated the development of salivary biomarker profile. Here, we explore the function of salivary exosomes from tumor-bearing mice in immune surveillance. We provide evidence that salivary exosomes from mice with PDAC exhibit a suppressive effect that results in reduced tumor-killing capacity by NK cells...
March 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/27582331/next-generation-sequencing-of-protein-coding-and-long-non-protein-coding-rnas-in-two-types-of-exosomes-derived-from-human-whole-saliva
#14
Yuko Ogawa, Masafumi Tsujimoto, Ryohei Yanoshita
Exosomes are small extracellular vesicles containing microRNAs and mRNAs that are produced by various types of cells. We previously used ultrafiltration and size-exclusion chromatography to isolate two types of human salivary exosomes (exosomes I, II) that are different in size and proteomes. We showed that salivary exosomes contain large repertoires of small RNAs. However, precise information regarding long RNAs in salivary exosomes has not been fully determined. In this study, we investigated the compositions of protein-coding RNAs (pcRNAs) and long non-protein-coding RNAs (lncRNAs) of exosome I, exosome II and whole saliva (WS) by next-generation sequencing technology...
2016: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/27573701/mir%C3%A2-1246-and-mir%C3%A2-4644-in-salivary-exosome-as-potential-biomarkers-for-pancreatobiliary-tract-cancer
#15
Tatsuya Machida, Takaaki Tomofuji, Takayuki Maruyama, Toshiki Yoneda, Daisuke Ekuni, Tetsuji Azuma, Hisataka Miyai, Hirofumi Mizuno, Hironari Kato, Koichiro Tsutsumi, Daisuke Uchida, Akinobu Takaki, Hiroyuki Okada, Manabu Morita
Pancreatobiliary tract cancer is a highly fatal cancer. Detection of pancreatobiliary tract cancer is difficult because it lacks typical clinical symptoms and because of its anatomical location. Biomarker discovery is therefore important to detect pancreatobiliary tract cancer in its early stage. A study demonstrated that expression levels of miR‑1246, miR‑3976, miR‑4306, and miR‑4644 in serum exosomes were higher in pancreatic cancer patients than these levels in healthy control participants. Supposing that microRNA (miRNA) expression profiles in saliva are similar to those in serum, four miRNAs (miR‑1246, miR‑3976, miR‑4306, and miR‑4644) in salivary exosomes may also be useful for detection of pancreatobiliary tract cancer...
October 2016: Oncology Reports
https://www.readbyqxmd.com/read/27381477/targeting-the-ca-2-sensor-stim1-by-exosomal-transfer-of-ebv-mir-bart13-3p-is-associated-with-sj%C3%A3-gren-s-syndrome
#16
Alessia Gallo, Shyh-Ing Jang, Hwei Ling Ong, Paola Perez, Mayank Tandon, Indu Ambudkar, Gabor Illei, Ilias Alevizos
Primary Sjögren's syndrome (pSS) is a systemic autoimmune disease that is associated with inflammation and dysfunction of salivary and lacrimal glands. The molecular mechanism(s) underlying this exocrinopathy is not known, although the syndrome has been associated with viruses, such as the Epstein Barr Virus (EBV). We report herein that an EBV-specific microRNA (ebv-miR-BART13-3p) is significantly elevated in salivary glands (SGs) of pSS patients and we show that it targets stromal interacting molecule 1 (STIM1), a primary regulator of the store-operated Ca(2+) entry (SOCE) pathway that is essential for SG function, leading to loss of SOCE and Ca(2+)-dependent activation of NFAT...
August 2016: EBioMedicine
https://www.readbyqxmd.com/read/26389700/diagnostic-profiling-of-salivary-exosomal-micrornas-in-oral-lichen-planus-patients
#17
J-S Byun, S-H Hong, J-K Choi, J-K Jung, H-J Lee
OBJECTIVE: Oral lichen planus is a chronic inflammatory oral mucosal disease whose exact cause is unclear and which requires efficient diagnostic and therapeutic strategies. Identification of disease-specific biomarkers in saliva is an easy, quick, and non-invasive approach for molecular diagnosis. This study was designed to examine salivary exosomal microRNAs (miRNAs) that could be candidates for diagnosing and elucidating the pathogenesis of oral lichen planus. SUBJECTS AND METHODS: We compared miRNA profiles of salivary exosomes of patients with oral lichen planus with those of healthy controls...
November 2015: Oral Diseases
https://www.readbyqxmd.com/read/26370963/micrornas-in-salivary-exosome-as-potential-biomarkers-of-aging
#18
Tatsuya Machida, Takaaki Tomofuji, Daisuke Ekuni, Takayuki Maruyama, Toshiki Yoneda, Yuya Kawabata, Hirofumi Mizuno, Hisataka Miyai, Muneyoshi Kunitomo, Manabu Morita
The aim of this study was to examine whether salivary exosomal miRNAs could be identified as aging biomarkers. Fifteen young healthy volunteers (median age, 21.0 years) and 13 old individuals (median age, 66.0 years) were recruited. Unstimulated whole saliva was collected, salivary exosomes were isolated, and total RNA was extracted. In a microarray, 242 miRNAs were commonly detected in these two mixed samples. Based on the cut-off values of 2- or 0.5-fold changes (FC) and regulatory power for aging process, six candidate miRNAs (miR-24-3p, miR-371a-5p, miR-3175, miR-3162-5p, miR-671-5p, and miR-4667-5p) were selected...
September 7, 2015: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/26122505/altered-microrna-expression-profiles-of-extracellular-vesicles-in-nasal-mucus-from-patients-with-allergic-rhinitis
#19
Geping Wu, Guanghai Yang, Ruxin Zhang, Guangyin Xu, Ling Zhang, Wu Wen, Jianbing Lu, Jianyong Liu, Yan Yu
PURPOSE: Allergic rhinitis (AR) is an inflammatory disorder of the upper airway. Exosomes or extracellular vesicles are nanosized vesicles of endosomal origin released from inflammatory and epithelial cells that have been implicated in allergic diseases. In this study, we characterized the microRNA (miRNA) content of exosomes in AR. METHODS: Extracellular vesicles were isolated from nasal mucus from healthy control subjects (n=10) and patients with severe AR (n=10)...
September 2015: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/26073025/human-salivary-proteome-a-resource-of-potential-biomarkers-for-oral-cancer
#20
Priya Sivadasan, Manoj Kumar Gupta, Gajanan J Sathe, Lavanya Balakrishnan, Priyanka Palit, Harsha Gowda, Amritha Suresh, Moni Abraham Kuriakose, Ravi Sirdeshmukh
Proteins present in human saliva offer an immense potential for clinical applications. However, exploring salivary proteome is technically challenged due to the presence of amylase and albumin in high abundance. In this study, we used four workflows to analyze human saliva from healthy individuals which involved depletion of abundant proteins using affinity-based separation methods followed by protein or peptide fractionation and high resolution mass spectrometry analysis. We identified a total of 1256 human salivary proteins, 292 of them being reported for the first time...
September 8, 2015: Journal of Proteomics
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