1
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Xu Q, Wang J, Zhang Y, Li Y, Qin X, Xin Y, Li Y, Xu K, Yang X, Wang X. Atypical Plant miRNA cal-miR2911: Robust Stability against Food Digestion and Specific Promoting Effect on Bifidobacterium in Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:4801-4813. [PMID: 38393993 DOI: 10.1021/acs.jafc.3c09511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/25/2024]
Abstract
Previous studies showed that cal-miR2911, featuring an atypical biogenesis, could target genes of virus and in turn inhibit virus replication. Given its especial sequence motif and cross-kingdom potential, the stability of miR2911 under digestive environment and its impact on intestinal microbes in mice were examined. The results showed that miR2911 was of considerable stability during oral, gastric, and intestinal digestion. The coingested food matrix enhanced its stability in the gastric phase, contributing to the existence of miR2911 in mouse intestines. The survival miR2911 promoted the growth of Bifidobacterium in mice and maintained the overall composition and diversity of the gut microbiota. miR2911 specifically entered the cells of Bifidobacterium adolescentis and potentially modulated the gene expression as evidenced by the dual-luciferase assay. The current study provided evidence on the cross-kingdom communication between dietary miRNAs and gut microbes, suggesting that modulating target bacteria using miRNAs for nutritional and therapeutic ends is promising.
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Affiliation(s)
- Qin Xu
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710062, China
| | - Jianing Wang
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710062, China
| | - Yi Zhang
- Department of Food Science, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Ying Li
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710062, China
| | - Xinshu Qin
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710062, China
| | - Yirao Xin
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710062, China
| | - Yinglei Li
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710062, China
| | - Ke Xu
- Department of Joint Surgery, Hong Hui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Xingbin Yang
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710062, China
| | - Xingyu Wang
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710062, China
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2
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Li J, Luo T, Wang D, Zhao Y, Jin Y, Yang G, Zhang X. Therapeutic application and potential mechanism of plant-derived extracellular vesicles in inflammatory bowel disease. J Adv Res 2024:S2090-1232(24)00047-X. [PMID: 38341033 DOI: 10.1016/j.jare.2024.01.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 01/09/2024] [Accepted: 01/31/2024] [Indexed: 02/12/2024] Open
Abstract
BACKGROUND Plant-derived extracellular vesicles (PDEVs) are membrane vesicles characterized by a phospholipid bilayer as the basic skeleton that is wrapped by various functional components of proteins and nucleic acids. An increasing number of studies have confirmed that PDEVs can be a potential treatment of inflammatory bowel disease (IBD) and can, to some extent, compensate for the limitations of existing therapies. AIM OF REVIEW This review summarizes the recent advances and potential mechanisms underlying PDEVs obtained from different sources to alleviate IBD. In addition, the review discusses the possible applications and challenges of PDEVs, providing a theoretical basis for exploring novel and practical therapeutic strategies for IBD. KEY SCIENTIFIC CONCEPTS OF REVIEW In IBD, the crosstalk mechanism of PDEVs may regulate the intestinal microenvironment homeostasis, especially immune responses, the intestinal barrier, and the gut microbiota. In addition, drug loading enhances the therapeutic potential of PDEVs, particularly regarding improved tissue targeting and stability. In the future, not only immunotherapy based on PDEVs may be an effective treatment for IBD, but also the intestinal barrier and intestinal microbiota will be a new direction for the treatment of IBD.
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Affiliation(s)
- Jinling Li
- Department of Food Science and Engineering, Ningbo University, Ningbo 315211, Zhejiang Province, China; State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang Province, China
| | - Ting Luo
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang Province, China
| | - Dou Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang Province, China
| | - Yao Zhao
- Biomanufacturing Research Institute of Xianghu Laboratory, Hangzhou 311231, Zhejiang Province, China
| | - Yuanxiang Jin
- Biomanufacturing Research Institute of Xianghu Laboratory, Hangzhou 311231, Zhejiang Province, China; College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, Zhejiang Province, China
| | - Guiling Yang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Laboratory (Hangzhou) for Risk Assessment of Agricultural Products of Ministry of Agriculture, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang Province, China; Biomanufacturing Research Institute of Xianghu Laboratory, Hangzhou 311231, Zhejiang Province, China.
| | - Xin Zhang
- Department of Food Science and Engineering, Ningbo University, Ningbo 315211, Zhejiang Province, China.
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3
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Xu Q, Qin X, Zhang Y, Xu K, Li Y, Li Y, Qi B, Li Y, Yang X, Wang X. Plant miRNA bol-miR159 Regulates Gut Microbiota Composition in Mice: In Vivo Evidence of the Crosstalk between Plant miRNAs and Intestinal Microbes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:16160-16173. [PMID: 37862127 DOI: 10.1021/acs.jafc.3c06104] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2023]
Abstract
New evidence reveals that bol-miR159, an miRNA rich in fruits and vegetables, cross-kingdomly functions in mammalian bodies. However, whether the miRNA could regulate gut microbiota remains unclear. Here, the effect of miR159 on mouse intestinal microbes was comprehensively examined. The results showed that supplementation of miR159 to the chow diet significantly enhanced the diversity of mouse gut microbiota without causing pathological lesions or inflammatory responses on the intestines. At the phylum level, miR159 increased the abundance of Proteobacteria and decreased the Firmicute-to-Bacteroidetes (F/B) ratio. miR159 had prebiotic-like effects on mouse gut microbiota, as it promoted the growth of the bacteria that is beneficial for maintaining gut health. The miRNA can target bacteria genes and get into the bacteria cells. The data provide direct in vivo evidence on the crosstalk between plant miRNAs and intestinal microbes, highlighting the potential for miRNA-based strategies that modulate gut microbes to improve host health.
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Affiliation(s)
- Qin Xu
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, and Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710062, China
| | - Xinshu Qin
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, and Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710062, China
| | - Yi Zhang
- Department of Food Science, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Ke Xu
- Department of Joint Surgery, Hong Hui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Ying Li
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, and Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710062, China
| | - Yinglei Li
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, and Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710062, China
| | - Bangran Qi
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, and Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710062, China
| | - Yan Li
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, and Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710062, China
| | - Xingbin Yang
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, and Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710062, China
| | - Xingyu Wang
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, and Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi 710062, China
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4
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Qin X, Wang X, Xu K, Zhang Y, Ren X, Qi B, Liang Q, Yang X, Li L, Li S. Digestion of Plant Dietary miRNAs Starts in the Mouth under the Protection of Coingested Food Components and Plant-Derived Exosome-like Nanoparticles. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:4316-4327. [PMID: 35352925 DOI: 10.1021/acs.jafc.1c07730] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The regulatory functions of plant miRNAs on mammalian bodies are controversial, mainly because stability of the miRNAs in the digestive tract, as the prerequisite for their cross-kingdom effects, has somehow been overlooked. Hence, as the first stage of food ingestion, stability of plant miRNAs in human saliva has been investigated. The results show that plant miRNAs are of considerable resistance against salivary digestion, as surviving miRNAs more than 20 fM are detected. The stability varies dramatically, which can be explained by the difference in tertiary structure, governing their affinities to RNase. Surprisingly, miRNAs of low initial concentrations can end up with high survival rates after digestion. Plant miRNAs can be loaded into exosome-like nanoparticles (ELNs) and microcapsules formed by food components, both of which protect the miRNAs from being degraded in human saliva. Overall, plant miRNAs can apply certain strategies to maintain constant concentrations, paving the way for their potential cross-kingdom effects.
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Affiliation(s)
- Xinshu Qin
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, Shaanxi, China
| | - Xingyu Wang
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, Shaanxi, China
| | - Ke Xu
- Department of Joint Surgery, Hong Hui Hospital, Xi'an Jiaotong University, Xi'an 710054, Shaanxi, China
| | - Yi Zhang
- IPREM, E2S UPPA, CNRS, Université de Pau et des Pays de l'Adour, Pau 64000, France
| | - Xiaoyu Ren
- Department of Joint Surgery, Hong Hui Hospital, Xi'an Jiaotong University, Xi'an 710054, Shaanxi, China
| | - Bangran Qi
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, Shaanxi, China
| | - Qian Liang
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, Shaanxi, China
| | - Xingbin Yang
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, Shaanxi, China
| | - Lin Li
- Santa Barbara City College, University of California Santa Barbara, Santa Barbara 93106, California, United States
| | - Shiqi Li
- Department of Material Science and Engineering, Queen Mary University of London Engineering School, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, China
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5
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Alshehri B. Plant-derived xenomiRs and cancer: Cross-kingdom gene regulation. Saudi J Biol Sci 2021; 28:2408-2422. [PMID: 33911956 PMCID: PMC8071896 DOI: 10.1016/j.sjbs.2021.01.039] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/12/2021] [Accepted: 01/19/2021] [Indexed: 12/18/2022] Open
Abstract
Exosomal microRNAs (miRNAs) critically regulate several major intracellular and metabolic activities, including cancer evolution. Currently, increasing evidence indicates that exosome harbor and transport these miRNAs from donor cells to neighboring and distantly related recipient cells, often in a cross-species manner. Several studies have reported that plant-based miRNAs can be absorbed into the serum of humans, where they hinder the expression of human disease-related genes. Moreover, few recent studies have demonstrated the role of these xenomiRs in cancer development and progression. However, the cross-kingdom gene regulation hypothesis remains highly debatable, and many follow up studies fail to reproduce the same. There are reports that show no effect of plant-derived miRNAs on mammalian cancers. The foremost cause of this controversy remains the lack of reproducibility of the results. Here, we reassess the latest developments in the field of cross-kingdom transference of miRNAs, emphasizing on the role of the diet-based xenomiRs on cancer progression.
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Affiliation(s)
- Bader Alshehri
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Majmaah 11952, Saudi Arabia
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6
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Abstract
Small RNAs (sRNAs), including microRNAs (miRNAs), are noncoding RNA (ncRNA) molecules involved in gene regulation. sRNAs play important roles in development; however, their significance in nutritional control and as metabolic modulators is still emerging. The mechanisms by which diet impacts metabolic genes through miRNAs remain an important area of inquiry. Recent work has established how miRNAs are transported in body fluids often within exosomes, which are small cell-derived vesicles that function in intercellular communication. The abundance of other recently identified ncRNAs and new insights regarding ncRNAs as dietary bioactive compounds could remodel our understanding about how foods impact gene expression. Although controversial, some groups have shown that dietary RNAs from plants and animals (i.e., milk) are functional in consumers. In the future, regulating sRNAs either directly through dietary delivery or indirectly by altered expression of endogenous sRNA may be part of nutritional interventions for regulating metabolism.
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Affiliation(s)
- Elizabeth M McNeill
- Department of Food Science and Human Nutrition, Iowa State University, Ames, Iowa 50011, USA
| | - Kendal D Hirschi
- Departments of Pediatrics and Human and Molecular Genetics, Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas 77030, USA;
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7
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Spinler JK, Oezguen N, Runge JK, Luna RA, Karri V, Yang J, Hirschi KD. Dietary impact of a plant-derived microRNA on the gut microbiome. ACTA ACUST UNITED AC 2020; 2. [PMID: 33542959 PMCID: PMC7856875 DOI: 10.1186/s41544-020-00053-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Background: Global estimations of 4 billion people living on plant-based diets signify tremendous diversity in plant consumption and their assorted miRNAs, which presents a challenging model to experimentally address how plant-based miRNAs impact the microbiome. Here we establish baseline gut microbiome composition for a mouse model deficient in the specific mammalian miR-146a shown to alter gut microbiomes. We then asses the effect on the gut microbiome when miR-146a-deficient mice are fed a transgenic plant-based diet expressing the murine-derived miR-146a. Mice deficient in miR-146a were maintained either on a baseline diet until 7 weeks of age (day 0) and then fed either vector or miR-146a-expressing plant-based diets for 21 days. The gut microbiomes of mice were examined by comparing the V4 region of 16S rRNA gene sequences of DNA isolated from fecal samples at days 0 (baseline diet) and 21 (vector or miR-146a expressing plant-based diets). Results: Beta-diversity analysis demonstrated that the transition from baseline chow to a plant-based diet resulted in significant longitudinal shifts in microbial community structure attributable to increased fiber intake. Bipartite network analysis suggests that miR-146a-deficient mice fed a plant diet rich in miR-146a have a microbiome population modestly different than mice fed an isogenic control plant diet deficient in miR-146a. Conclusion: A mouse diet composed of a transgenic plant expressing a mouse miR-146a may fine tune microbial communities but does not appear to have global effects on microbiome structure and composition.
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Affiliation(s)
- Jennifer K Spinler
- Texas Children's Microbiome Center, Department of Pathology, Texas Children's Hospital, Houston, TX, USA.,Department of Pathology & Immunology, Baylor College of Medicine, One Baylor Plaza, 1102 Bates Ave, Houston, TX 77030, USA
| | - Numan Oezguen
- Texas Children's Microbiome Center, Department of Pathology, Texas Children's Hospital, Houston, TX, USA.,Department of Pathology & Immunology, Baylor College of Medicine, One Baylor Plaza, 1102 Bates Ave, Houston, TX 77030, USA
| | - Jessica K Runge
- Texas Children's Microbiome Center, Department of Pathology, Texas Children's Hospital, Houston, TX, USA.,Department of Pathology & Immunology, Baylor College of Medicine, One Baylor Plaza, 1102 Bates Ave, Houston, TX 77030, USA
| | - Ruth Ann Luna
- Texas Children's Microbiome Center, Department of Pathology, Texas Children's Hospital, Houston, TX, USA.,Department of Pathology & Immunology, Baylor College of Medicine, One Baylor Plaza, 1102 Bates Ave, Houston, TX 77030, USA
| | | | - Jian Yang
- Pediatrics-Nutrition, Children's Nutrition Research, Baylor College of Medicine, 1100 Bates Ave, Houston, TX 77030, USA
| | - Kendal D Hirschi
- Pediatrics-Nutrition, Children's Nutrition Research, Baylor College of Medicine, 1100 Bates Ave, Houston, TX 77030, USA
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8
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Wang X, Ren X, Ning L, Wang P, Xu K. Stability and absorption mechanism of typical plant miRNAs in an in vitro gastrointestinal environment: basis for their cross-kingdom nutritional effects. J Nutr Biochem 2020; 81:108376. [PMID: 32330841 DOI: 10.1016/j.jnutbio.2020.108376] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 02/29/2020] [Accepted: 03/09/2020] [Indexed: 12/15/2022]
Abstract
Plant miRNAs, a group of 19-24 nt noncoding RNAs from plant foods, were recently found to have immunomodulatory and nutritional effects on mammalian and human bodies. However, how the miRNAs survive gastrointestinal (GI) environment and how the stable miRNAs are absorbed, which serve the basis for their biological functions, were not unraveled. Here, we investigated the stabilities of six typical plant miRNAs in simulated gastric and intestinal environments, and the absorption mechanisms by Caco-2 cells. The results showed that the miRNAs can survive the environment with certain concentrations. The mixture of food ingredients enhanced the stabilities of the plant miRNAs in the gastric conditions, while 2'-O-methyl modification protects the miRNAs in intestinal juice. The stabilities of the miRNAs vary significantly in the environment and are related to their secondary structures. The stable plant miRNAs can be absorbed by Caco-2 cells via clathrin- and caveolin-mediated endocytosis. Uptake of the miRNAs was sequence dependent, facilitated by NACh and TLR9, two typical receptors on cell membrane. The results suggest that some of plant miRNAs are stable in the mimic GI environment and can be absorbed by Caco-2 cells, underlying the potential of their cross-kingdom regulation effects.
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Affiliation(s)
- Xingyu Wang
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, Shaanxi, China.
| | - Xiaoyu Ren
- Department of Joint Surgery, Hong Hui Hospital, Xi'an Jiaotong University, Xi'an 710054, Shaanxi, China
| | - Lufang Ning
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, Shaanxi, China
| | - Pengfei Wang
- College of Food science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, China
| | - Ke Xu
- Department of Joint Surgery, Hong Hui Hospital, Xi'an Jiaotong University, Xi'an 710054, Shaanxi, China.
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9
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Cross-Kingdom Small RNAs Among Animals, Plants and Microbes. Cells 2019; 8:cells8040371. [PMID: 31018602 PMCID: PMC6523504 DOI: 10.3390/cells8040371] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 04/12/2019] [Accepted: 04/20/2019] [Indexed: 12/15/2022] Open
Abstract
Small RNAs (sRNAs), a class of regulatory non-coding RNAs around 20~30-nt long, including small interfering RNAs (siRNAs) and microRNAs (miRNAs), are critical regulators of gene expression. Recently, accumulating evidence indicates that sRNAs can be transferred not only within cells and tissues of individual organisms, but also across different eukaryotic species, serving as a bond connecting the animal, plant, and microbial worlds. In this review, we summarize the results from recent studies on cross-kingdom sRNA communication. We not only review the horizontal transfer of sRNAs among animals, plants and microbes, but also discuss the mechanism of RNA interference (RNAi) signal transmission via cross-kingdom sRNAs. We also compare the advantages of host-induced gene silencing (HIGS) and spray-induced gene silencing (SIGS) technology and look forward to their applicable prospects in controlling fungal diseases.
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10
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Link J, Thon C, Schanze D, Steponaitiene R, Kupcinskas J, Zenker M, Canbay A, Malfertheiner P, Link A. Food-Derived Xeno-microRNAs: Influence of Diet and Detectability in Gastrointestinal Tract-Proof-of-Principle Study. Mol Nutr Food Res 2018; 63:e1800076. [PMID: 30378765 DOI: 10.1002/mnfr.201800076] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 10/17/2018] [Indexed: 12/25/2022]
Abstract
SCOPE Diet is amongst the most crucial factors contributing to the multistep process of carcinogenesis. The role of exogenous microRNAs (miRNAs) is still debatable. In this proof-of-principle work, the presence of miRNAs in a variety of foods, its stability to processing, and detectability in GI mucosa and feces are studied and the effect of short-term diet on human- or plant-derived miRNAs in feces and blood is examined. METHODS AND RESULTS Animal and plant miRNAs are detected in all foods irrespective of processing. Animal-derived foods showed the highest miRNA level and the lowest is found in cheese and milk. The impact of the short-term vegetarian or meat-rich diet on blood and feces miRNA is evaluated in healthy subjects using qPCR and Affymetrix profiling. Diet is not associated with changes in ultraconserved miRNAs. However, a vegetarian diet is associated with an increase of miR-168 in feces but not in blood. Overall, plant miR-168 is detectable in normal GI mucosa and in colorectal cancer. CONCLUSIONS Food provides a great source of miRNAs and diet may be associated with changes in xenomiRs. Plant-derived miR-168 is ubiquitously present in feces, normal mucosa, and cancer. Further studies are needed to evaluate the functional interaction between diet-derived miRNAs and GI tract.
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Affiliation(s)
- Jastin Link
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University, Magdeburg, 39120, Germany
| | - Cosima Thon
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University, Magdeburg, 39120, Germany
| | - Denny Schanze
- Institute of Human Genetics, Otto-von-Guericke University, Magdeburg, 39120, Germany
| | - Ruta Steponaitiene
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University, Magdeburg, 39120, Germany.,Department of Gastroenterology and Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas, 50161, Lithuania
| | - Juozas Kupcinskas
- Department of Gastroenterology and Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas, 50161, Lithuania
| | - Martin Zenker
- Institute of Human Genetics, Otto-von-Guericke University, Magdeburg, 39120, Germany
| | - Ali Canbay
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University, Magdeburg, 39120, Germany
| | - Peter Malfertheiner
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University, Magdeburg, 39120, Germany
| | - Alexander Link
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University, Magdeburg, 39120, Germany
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11
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Li Z, Xu R, Li N. MicroRNAs from plants to animals, do they define a new messenger for communication? Nutr Metab (Lond) 2018; 15:68. [PMID: 30302122 PMCID: PMC6167836 DOI: 10.1186/s12986-018-0305-8] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 09/21/2018] [Indexed: 12/13/2022] Open
Abstract
MicroRNAs (miRNAs), a class of single-stranded non-coding RNA of about 22 nucleotides, are potent regulators of gene expression existing in both plants and animals. Recent studies showed that plant miRNAs could enter mammalian bloodstream via gastrointestinal tract, through which access a variety of tissues and cells of recipients to exert therapeutic effects. This intriguing phenomenon indicates that miRNAs of diet/plant origin may act as a new class of bioactive ingredients communicating with mammalian systems. In this review, in order to pinpoint the reason underlying discrepancies of miRNAs transmission from diet/plant to animals, the pathways that generate miRNAs and machineries involved in the functions of miRNAs in both kingdoms were outlined and compared. Then, the current controversies concerning cross-kingdom regulations and the potential mechanisms responsible for absorption and transfer of diet/plant-derived miRNAs were interpreted. Furthermore, the hormone-like action of miRNAs and the intricate interplay between miRNAs and hormones were implicated. Finally, how these findings may impact nutrition and medicine were briefly discussed.
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Affiliation(s)
- Zhiqing Li
- 1State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Tsinghua University, Beijing, 100005 People's Republic of China
| | - Ruodan Xu
- 2Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700 People's Republic of China.,3Department of Engineering, Aarhus University, 8000 Aarhus, Denmark
| | - Ning Li
- 2Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700 People's Republic of China
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12
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Yang J, Elbaz-Younes I, Primo C, Murungi D, Hirschi KD. Intestinal permeability, digestive stability and oral bioavailability of dietary small RNAs. Sci Rep 2018; 8:10253. [PMID: 29980707 PMCID: PMC6035168 DOI: 10.1038/s41598-018-28207-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 06/19/2018] [Indexed: 12/19/2022] Open
Abstract
Impactful dietary RNA delivery requires improving uptake and enhancing digestive stability. In mouse feeding regimes, we have demonstrated that a plant-based ribosomal RNA (rRNA), MIR2911, is more bioavailable than synthetic MIR2911 or canonical microRNAs (miRNAs). Here mutagenesis was used to discern if MIR2911 has a distinctive sequence that aids stability and uptake. Various mutations had modest impacts while one scrambled sequence displayed significantly enhanced digestive stability, serum stability, and bioavailability. To assess if small RNA (sRNA) bioavailability in mice could be improved by increasing gut permeability, various diets, genetic backgrounds and pharmacological methods were surveyed. An intraperitoneal injection of anti-CD3 antibody enhanced gut permeability which correlated with improved uptake of the digestively stable scrambled MIR2911 variant. However, the bioavailability of canonical miRNAs was not enhanced. Similarly, interleukin-10 (IL-10)-deficient mice and mice treated with aspirin displayed enhanced gut permeability that did not enhance uptake of most plant-based sRNAs. This work supports a model where dietary RNAs are vulnerable to digestion and altering gut permeability alone will not impact apparent bioavailability. We suggest that some dietary sRNA may be more digestively stable and methods to broadly increase sRNA uptake requires delivery vehicles to optimize gut and serum stability in the consumer.
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Affiliation(s)
- Jian Yang
- USDA/ARS Children's Nutrition Research Center, Baylor College of Medicine, 1100 Bates Avenue, Houston, TX, 77030, USA
| | - Ismail Elbaz-Younes
- USDA/ARS Children's Nutrition Research Center, Baylor College of Medicine, 1100 Bates Avenue, Houston, TX, 77030, USA
| | - Cecilia Primo
- USDA/ARS Children's Nutrition Research Center, Baylor College of Medicine, 1100 Bates Avenue, Houston, TX, 77030, USA
| | - Danna Murungi
- USDA/ARS Children's Nutrition Research Center, Baylor College of Medicine, 1100 Bates Avenue, Houston, TX, 77030, USA
| | - Kendal D Hirschi
- USDA/ARS Children's Nutrition Research Center, Baylor College of Medicine, 1100 Bates Avenue, Houston, TX, 77030, USA.
- Vegetable and Fruit Improvement Center, Texas A&M University, College Station, TX, 77845, USA.
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Witwer KW. Alternative miRNAs? Human sequences misidentified as plant miRNAs in plant studies and in human plasma. F1000Res 2018; 7:244. [PMID: 29744036 PMCID: PMC5904727 DOI: 10.12688/f1000research.14060.1] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/23/2018] [Indexed: 12/22/2022] Open
Abstract
Background: A 2017 study reported that “Plant miRNAs found in human circulating system provide evidences of cross kingdom RNAi”. Analysis of two human blood plasma sequencing datasets was said to provide evidence for uptake of plant miRNAs into human plasma. The results were also purportedly inconsistent with contamination. Methods: Sequences from public datasets and miRNA databases were compared with results downloaded from the website of the reporting journal. Results: Only one putative plant miRNA (“peu-MIR2910) mapped consistently above background, and this sequence is found with 100% identity in a human rRNA. Several other rarer but consistently mapped putative plant miRNAs also have 100% or near 100% matches to human transcripts or genomic sequences, and some do not appear to map to plant genomes at all. Conclusions: Reanalysis of public data suggests that dietary plant xenomiR uptake is not supported, but instead confirms previous findings that detection of rare plant miRNAs in mammalian sequencing datasets is artifactual. Some putative plant miRNAs, including MIR2910 and MIR2911, may represent human sequence contamination or other artifacts in plant studies, emphasizing the need for rigorous controls and data filtering strategies when assessing possible xenomiRNAs.
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Affiliation(s)
- Kenneth W Witwer
- Department of Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA.,Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
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14
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Zhou G, Zhou Y, Chen X. New Insight into Inter-kingdom Communication: Horizontal Transfer of Mobile Small RNAs. Front Microbiol 2017; 8:768. [PMID: 28507539 PMCID: PMC5410588 DOI: 10.3389/fmicb.2017.00768] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 04/13/2017] [Indexed: 12/12/2022] Open
Abstract
Small RNAs (sRNAs), including small interfering RNAs (siRNAs) and microRNAs (miRNAs), are conventionally regarded as critical molecular regulators of various intracellular processes. However, recent accumulating evidence indicates that sRNAs can be transferred within cells and tissues and even across species. In plants, nematodes and microbes, these mobile sRNAs can mediate inter-kingdom communication, environmental sensing, gene expression regulation, host-parasite defense and many other biological functions. Strikingly, a recent study by our group suggested that ingested plant miRNAs are transferred to blood, accumulate in tissues and regulate transcripts in consuming animals. While our and other independent groups’ subsequent studies further explored the emerging field of sRNA-mediated crosstalk between species, some groups reported negative results and questioned its general applicability. Thus, further studies carefully evaluating the horizontal transfer of exogenous sRNAs and its potential biological functions are urgently required. Here, we review the current state of knowledge in the field of the horizontal transfer of mobile sRNAs, suggest its future directions and key points for examination and discuss its potential mechanisms and application prospects in nutrition, agriculture and medicine.
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Affiliation(s)
- Geyu Zhou
- State Key Laboratory of Pharmaceutical Biotechnology, NJU Advanced Institute for Life Sciences, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, School of Life Sciences, Nanjing UniversityNanjing, China
| | - Yu Zhou
- State Key Laboratory of Pharmaceutical Biotechnology, NJU Advanced Institute for Life Sciences, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, School of Life Sciences, Nanjing UniversityNanjing, China
| | - Xi Chen
- State Key Laboratory of Pharmaceutical Biotechnology, NJU Advanced Institute for Life Sciences, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, School of Life Sciences, Nanjing UniversityNanjing, China
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