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miRNA簇 1

microRNA(miRNA) 1

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肝细胞肝癌 1

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MiRNA-451 is a potential biomarker for estrogenicity in mouse uterus

Lingyan HOU, Yun LU, Ying LI, Li LI

《环境科学与工程前沿（英文）》 2014年第8卷第1期页码 99-105 doi: 10.1007/s11783-013-0490-7

摘要： The uterotrophic assay has been commonly used to test environmental estrogens in vivo, however, it is often not sensitive enough sometimes. An alternative way is to evaluate estrogenicity through biomarker genes. MicroRNA (miRNA) is a class of regulatory gene, which has been shown to be a good biomarker for many diseases and toxicological effects in recent years, and some evidences showed that estrogen induced response was partially mediated by miRNAs. In this study, two types of microarrays were used to test the 17β-estradiol (E2) induced miRNA expression profile at different time points in the immature mouse uterus. Statistical analysis showed the aldehyde slide based array had less variation than the amino slide based array, and 11 dysregulated miRNAs were screened out for significant fold change. Real-time PCR was performed to further confirm that 4 out of 7 selected miRNAs, namely miR-451, miR-155, miR-335-5p, and miR-365, are E2 regulated miRNAs in the uterus. The function of the predicted targets of these miRNAs is involved in cell grow control, which is consistent with the main E2 function in the uterus. MiR-451 had similar strong responses to E2 in the uterus of both immature and overiectomized mice, and could be a potential biomarker for estrogenicity in the uterus.

关键词： estrogen microRNA (miRNA) microarray biomarker

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U-shaped microRNA expression pattern could be a new concept biomarker for environmental estrogen

Rui Duan, Yun Lu, Lingyan Hou, Lina Du, Lequn Sun, Xingfan Tang

《环境科学与工程前沿（英文）》 2016年第10卷第6期 doi: 10.1007/s11783-016-0880-8

摘要： Estrogen regulates miRNA expression in a typical U-shaped dose-response pattern. E2 can regulate in the ventral prostate. Mouse ventral prostate is most sensitive to estrogen. Nonmonotonic dose-response in prostate could be a component of estrogen signature. Many studies have focused on environmental estrogen-related diseases. However, no consistent gene markers or signatures for estrogenicity have been discovered in mammals. This study investigated the estrogenic effects of 17β-estradiol on the prostate in immature male mice. Consistent U-shaped responses were seen in bodyweight, ventral prostate epithelial morphology, and miRNA expression levels. Specifically, most estradiol regulated miRNAs were downregulated at low doses of estradiol (0.2 and 2 mg·kg ), and whose expression returned to the control level at a larger dose (200 mg·kg ). The function of these regulated miRNAs is related to the prostate cancer and PI3K-Akt signaling pathways, which is consistent with the function of estradiol. Furthermore, the miRNA-processing machinery, Drosha, in the prostate was also regulated in a similar pattern, which could be a part of the U-shaped miRNA expression mechanism. All of these data indicate that the prostate is a reliable organ for evaluating estrogenic activity and that the typical nonmonotonic dose-response relationship could be used as a novel biomarker for estrogenicity.

关键词： miRNA Prostate Estradiol Nonmonotonic dose-response Estrogenicity Drosha

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非编码RNA及其在组织工程中的潜在应用

李石营, 钱天梅, 王星辉, 刘杰, 顾晓松

《工程（英文）》 2017年第3卷第1期页码 3-15 doi: 10.1016/J.ENG.2017.01.005

摘要：

组织工程是医学科学中一个相对较新但发展迅速的领域。非编码RNA(ncRNA) 是不编码蛋白质的功能性RNA 分子，它们可以调节细胞的行为、改变组织的生物学环境。虽然以对ncRNA 作为治疗靶点尚未进入临床实践，但ncRNA 在组织工程中的应用已经吸引了越来越多的关注，而且对ncRNA 的调节作用和释放方法的深入探讨可以促进其在组织工程中的应用。本文简要介绍了ncRNA 在神经、皮肤、肝脏、血管和肌肉的调控作用和可能的释放方法及其潜在的治疗应用价值。

关键词：组织工程非编码RNA(ncRNA) microRNA(miRNA) 神经皮肤肝脏血管系统肌肉

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A brief review of microRNA and its role in PRRSV infection and replication

Xuekun GUO,Wenhai FENG

《农业科学与工程前沿（英文）》 2014年第1卷第2期页码 114-120 doi: 10.15302/J-FASE-2014022

摘要： Porcine reproductive and respiratory syndrome virus (PRRSV), a single-stranded RNA virus, mainly infects cells of monocyte/macrophage lineage. Recently, host microRNAs were shown to be capable of modulating PRRSV infection and replication by multiple ways such as targeting viral genomic RNA, targeting viral receptor and inducing antiviral response. MicroRNAs are small RNAs and have emerged as important regulators of virus-host cell interactions. In this review, we discuss the identified functions of host microRNAs in relation to PRRSV infection and propose that cellular microRNAs may have a substantial effect on cell or tissue tropism of PRRSV.

关键词： porcine reproductive and respiratory syndrome virus (PRRSV) microRNA antiviral viral tropism

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Association of miRNA-122-binding site polymorphism at the interleukin-1 α gene and its interaction with

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《医学前沿（英文）》 2014年第8卷第2期页码 217-226 doi: 10.1007/s11684-014-0326-2

摘要：

This study was designed to investigate the contribution of miRNA-122-binding site polymorphism at the IL-1A gene and its multiplicative interactions with hepatitis B virus (HBV) mutations in the risk of hepatocellular carcinoma (HCC). A total of 1021 healthy controls, 302 HBV surface antigen (HBsAg) seroclearance subjects, and 2011 HBsAg-positive subjects (including 1021 HCC patients) were enrolled in this study. Quantitative PCR was used to genotype rs3783553. HBV mutations were determined by direct sequencing. Multivariate logistic regression analyses were performed to test the associations of rs3783553, mutations, and their interactions with the risk of HCC. No significant association was found between rs3783553 and the risk of HCC among healthy controls, HBsAg seroclearance subjects, HBsAg-positive subjects without HCC, and all controls. Additionally, rs3783553 was not significantly associated with chronic HBV infection, liver cirrhosis, HBV e antigen seroconversion, abnormal alanine aminotransferase, and high viral load (>10⁴ copies/ml). However, the TTCA insertion allele of rs3783553 was significantly associated with an increased frequency of HBV C7A mutation compared with homozygous TTCA deletion carriers [(del/ins+ ins/ins) vs. del/del, adjusted odds ratio (OR)=1.48, 95% confidence interval (CI)=1.09-2.02, P=0.013]. Multiplicative interaction of rs3783553 with HBV preS deletion significantly reduced the risk of HCC in males, with an adjusted OR of 0.64 (95% CI=0.42-0.98; P=0.041) after age and HBV genotype were adjusted. Although rs3783553 did not significantly affect genetic susceptibility to HBV-related HCC, its variant allele may predispose the host to selecting HBV C7A mutation during evolution and significantly reduce the risk of HCC caused by HBV preS deletion. This study provides an insight into the complex host-virus interaction in HBV-induced hepatocarcinogenesis and is helpful in determining HBsAg-positive subjects who are likely to develop HCC.

关键词： hepatocellular carcinoma (HCC) interaction miRNA-122-binding site IL-1A rs3783553 hepatitis B virus (HBV) mutations

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MicroRNA-148b promotes proliferation of hair follicle cells by targeting

Wanbao YANG,Qinqun LI,Bo SU,Mei YU

《农业科学与工程前沿（英文）》 2016年第3卷第1期页码 72-80 doi: 10.15302/J-FASE-2016089

摘要： MicroRNAs (miRNAs), small non-coding RNAs, are involved in many aspects of biological processes. Previous studies have indicated that miRNAs are important for hair follicle development and growth. In our study, we found by qRT-PCR that miR-148b was significantly upregulated in sheep wool follicle bulbs in anagen phase compared with the telogen phase of the hair follicle cycle. Overexpression of miR-148b promoted proliferation of both HHDPC and HHGMC. By using the TOPFlash system we demonstrated that miR-148b could activate Wnt/β-catenin pathway and , , and were consistently upregulated accordingly. Furthermore, transcript factor nuclear factor of activated T cells type 5 ( ) and were predicted to be the target of miR-148b and this was substantiated using a Dual-Luciferase reporter system. Subsequently was further identified as the target of miR-148b using western blotting. These results were considered to indicate that miR-148b could activate the Wnt/β-catenin signal pathway by targeting to promote the proliferation of human hair follicle cells.

关键词： miR-148b hair follicle proliferation NFAT5 Wnt10b

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MicroRNA-142-3p and microRNA-142-5p are downregulated in hepatocellular carcinoma and exhibit synergistic

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《医学前沿（英文）》 2015年第9卷第3期页码 331-343 doi: 10.1007/s11684-015-0409-8

摘要：

MicroRNAs (miRNAs), an important class of small non-coding RNAs, regulate gene expression at the post-transcriptional level. miRNAs are involved in a wide range of biological processes and implicated in different diseases, including cancers. In this study, miRNA profiling and qRT-PCR validation revealed that miR-142-3p and miR-142-5p were significantly downregulated in hepatocellular carcinoma (HCC) and their expression levels decreased as the disease progressed. The ectopic expression of miR-142 significantly reduced HCC cell migration and invasion. Overexpression of either miR-142-3p or miR-142-5p suppressed HCC cell migration, and overexpression of both synergistically inhibited cell migration, which indicated that miR-142-3p and miR-142-5p may cooperatively regulate cell movement. miR-142-3p and miR-142-5p, which are mature miRNAs derived from the 3′- and 5′-strands of the precursor miR-142, target distinct pools of genes because of their different seed sequences. Pathway enrichment analysis showed a strong association of the putative gene targets of miR-142-3p and miR-142-5p with several cell motility-associated pathways, including those regulating actin cytoskeleton, adherens junctions, and focal adhesion. Importantly, a number of the putative gene targets were also significantly upregulated in human HCC cells. Moreover, overexpression of miR-142 significantly abrogated stress fiber formation in HCC cells and led to cell shrinkage. This study shows that mature miR-142 pairs collaboratively regulate different components of distinct signaling cascades and therefore affects the motility of HCC cells.

关键词： hepatocellular carcinoma microRNA metastasis cytoskeletal reorganization

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促进肝癌致癌活性和细胞代谢的新型介质——miR-516a-3p

芮韬, 张学优, 冯时, 黄海涛, 詹少伟, 谢海洋, 周琳, 郑树森, 凌琪

《工程（英文）》 2022年第16卷第9期页码 162-175 doi: 10.1016/j.eng.2021.07.020

摘要：根据先前的研究，19 号染色体miRNA簇（C19MC）与肝癌患者的肿瘤高负荷和不良预后相关。目前的研究旨在探讨miR-516a-3p 在HCC 中的作用。miR-516a-3p 是一种由C19MC 4 个致癌前体miRNA（即mir-516a-1、mir-516a-2、mir-516b-1 和mir-516b-2）所共同剪接而成的相同的成熟体miRNA。

关键词：肝细胞肝癌 miRNA簇外泌体多组学

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Inflammation and liver tumorigenesis

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《医学前沿（英文）》 2013年第7卷第2期页码 242-254 doi: 10.1007/s11684-013-0256-4

摘要：

Inflammation has been considered as one of the hallmarks of cancer, and chronic hepatitis is a major cause of liver cancer. This review will focus on the pathogenic role of inflammation in hepatocarcinogenesis and will discuss recent advances in understanding the chronic hepatitis-liver cancer link based on hot spots in liver cancer research, including cellular interaction, cytokines, microRNA and stem cells. All of these mechanisms should be taken into consideration because they are crucial for the development of more efficacious therapeutic strategies for preventing and treating human chronic hepatitis and hepatocellular carcinoma.

关键词： hepatocellular carcinoma hepatitis cytokine stem cell miRNA

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Vacuum promotes metabolic shifts and increases biogenic hydrogen production in dark fermentation systems

Haifa RAJHI,Daniel PUYOL,Mirna C. MARTÍNEZ,Emiliano E. DÍAZ,José L. SANZ

《环境科学与工程前沿（英文）》 2016年第10卷第3期页码 513-521 doi: 10.1007/s11783-015-0777-y

摘要： The successful operation of any type of hydrogen-producing bioreactor depends on the performance of the microorganisms present in the system. Both substrate and partial gas pressures are crucial factors affecting dark fermentation metabolic pathways. The main objective of this study was to evaluate the impact of both factors on hydrogen production using anaerobic granular sludge as inoculum and, secondly, to study the metabolic shifts of an anaerobic community subjected to low partial gas pressures. With this goal in mind, seven different wastewater (four synthetic media, two industrial wastewater, and one domestic effluent) and the effect of applying vacuum on the systems were analyzed. The application of vacuum promoted an increase in the diversity of hydrogen-producing bacteria, such as , and promoted the dominance of acetoclastic- over hydrogenotrophic methanogens. The application of different media promoted a wide variety of metabolic pathways. Nevertheless, reduction of the hydrogen partial pressure by application of vacuum lead to further oxidation of reaction intermediates irrespective of the medium used, which resulted in higher hydrogen and methane production, and improved the COD removal. Interestingly, vacuum greatly promoted biogenic hydrogen production from a real wastewater, which opens possibilities for future application of dark fermentation systems to enhance biohydrogen yields.

关键词： dark fermentation biohydrogen wastewaters vacuum

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MicroRNAs and hepatitis viruses

Gang LI MD , Xiaojia XIONG MM ,

《医学前沿（英文）》 2009年第3卷第3期页码 265-270 doi: 10.1007/s11684-009-0055-0

摘要： MicroRNAs (miRNAs) are a class of small RNA molecules. They play a pivotal role in diverse domains such as infection, tumorigenesis, and immune reaction. As key regulators of most genes’ expression, they react at posttranscriptional level. It is increasingly clear that miRNAs are necessary for physiological and pathological processes. In the past few years, investigators gradually brought the concept of miRNA into studies of viral infection, including hepatitis viruses. The hepatitis B and C viruses are common causes of liver disease worldwide. It is very difficult to cure chronic hepatitis due to drug resistance during antivirus therapy. Elucidating the mechanisms of virus-host interactions in hepatitis B and C is very important in diagnosis, prognosis, and therapy. This article reviews the current knowledge of viral hepatitis (B and C type) at the level of miRNA and tries to outline areas of potential studies.

关键词： microRNA hepatitis B virus hepatitis C virus

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The role of microRNAs in adipocyte differentiation

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《医学前沿（英文）》 2013年第7卷第2期页码 223-230 doi: 10.1007/s11684-013-0252-8

摘要：

Adipocytes differentiate from mesenchymal stem cells (MSCs) in a process known as adipogenesis. The programme of adipogenesis is regulated by the sequential activation of transcription factors and several signaling pathways. There is growing evidence indicating that a class of small non-coding single-stranded RNAs known as “microRNAs (miRNAs)” also are involved in this process. In this review, we summarize the biology and functional mechanisms of miRNAs in adipocyte differentiation. In addition, we further discuss the miRNAs profiling, the miRNAs function and miRNAs target prediction in the adipogenesis.

关键词： microRNA adipocyte differentiation adipogenesis

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The microRNA, miR-29c, participates in muscle development through targeting the

Weiya ZHANG,Wei WEI,Yuanyuan ZHAO,Shuhong ZHAO,Xinyun LI

《农业科学与工程前沿（英文）》 2015年第2卷第4期页码 311-317 doi: 10.15302/J-FASE-2015075

摘要： Previous studies indicated that miR-29c is important for muscle development in mice and human, but its role in pigs is unknown. In this study, we detected the expression of miR-29c in Meishan longissimus lumborum (LL) muscle. The results showed that miR-29c was gradually upregulated during development of skeletal muscle in pig. Moreover, the expression of and genes, which were confirmed to be targeted by miR-29c in mice, was decreased along with muscle development. Furthermore, the expression level of miR-29c was significantly higher in adult Meishan pigs than Large White pigs, while the expression of and genes was significantly lower in Meishan pigs. These results indicated that the expression pattern of miR-29c was opposite to that of and genes in pigs. Also, the luciferase assay indicated that miR-29s can target the gene in pigs. In addition, we identified a T to C mutation in the primary transcript of miR-29c, which was associated with the postmortem muscle pH in pigs. Based on these results, we concluded that miR-29c is also important in skeletal muscle development of pigs.

关键词： pig miR-29c skeletal muscle expression SNP

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Circulating microRNAs in cardiovascular diseases: from biomarkers to therapeutic targets

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《医学前沿（英文）》 2014年第8卷第4期页码 404-418 doi: 10.1007/s11684-014-0379-2

摘要：

microRNAs (miRNAs) are a class of conserved, short, non-coding RNAs that have important and potent capacities to regulate gene expression at the posttranscriptional level. In the past several years, the aberrant expressions of miRNAs in the cardiovascular system have been widely reported, and the crucial roles of some special miRNAs in heart development and pathophysiology of various cardiovascular diseases have been gradually recognized. Recently, it was discovered that miRNAs are presented in peripheral circulation abundantly and stably. This has raised the possibility of using circulating miRNAs as biomarkers for diseases. Furthermore, some studies demonstrated that circulating miRNAs may serve as novel extracellular communicators of cell-cell communication. These discoveries not only reveal the functions of circulating miRNAs in cardiovascular system but also inform the development of miRNAs therapeutic strategies. In this review, we discuss the potential roles of circulating miRNAs in a variety of cardiovascular diseases from biomarkers to therapeutic targets to clearly understand the roles of circulating miRNAs in cardiovascular system.

关键词： microRNA cardiovascular disease biomarkers therapeutic target

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miRNAs in non-alcoholic fatty liver disease

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《医学前沿（英文）》 2016年第10卷第4期页码 389-396 doi: 10.1007/s11684-016-0468-5

摘要：

Non-alcoholic fatty liver disease (NAFLD) is a major cause of liver cirrhosis and hepatocellular carcinoma and is a considerable threat to public health. miRNAs are important post-transcriptional regulators of gene expression, and the dysregulation of miRNAs is involved in various biological processes in the liver, including lipid homeostasis, inflammation, apoptosis, and cell proliferation. Recently, a number of studies have described the association between miRNAs and NAFLD progression and have shown that circulating miRNAs reflect histological changes in the liver. Therefore, circulating miRNAs have potential use for the evaluation of NAFLD severity. In this review, we discuss the involvement of miRNAs in NAFLD pathogenesis and the key role of miRNAs in the screening, diagnosis, and staging of NAFLD.

关键词： nonalcoholic fatty liver disease nonalcoholic steatohepatitis hepatocellular carcinoma miRNA