351
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Liu S, Wang Z, Chen D, Zhang B, Tian RR, Wu J, Zhang Y, Xu K, Yang LM, Cheng C, Ma J, Lv L, Zheng YT, Hu X, Zhang Y, Wang X, Li J. Annotation and cluster analysis of spatiotemporal- and sex-related lncRNA expression in rhesus macaque brain. Genome Res 2017; 27:1608-1620. [PMID: 28687705 PMCID: PMC5580719 DOI: 10.1101/gr.217463.116] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 06/26/2017] [Indexed: 11/24/2022]
Abstract
Long noncoding RNAs (lncRNAs) mediate important epigenetic regulation in a wide range of biological processes and diseases. We applied comprehensive analyses of RNA-seq and CAGE-seq (cap analysis of gene expression and sequencing) to characterize the dynamic changes in lncRNA expression in rhesus macaque (Macaca mulatta) brain in four representative age groups. We identified 18 anatomically diverse lncRNA modules and 14 mRNA modules representing spatial, age, and sex specificities. Spatiotemporal- and sex-biased changes in lncRNA expression were generally higher than those observed in mRNA expression. A negative correlation between lncRNA and mRNA expression in cerebral cortex was observed and functionally validated. Our findings offer a fresh insight into spatial-, age-, and sex-biased changes in lncRNA expression in macaque brain and suggest that the changes represent a previously unappreciated regulatory system that potentially contributes to brain development and aging.
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Affiliation(s)
- Siling Liu
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming 650223, China
| | - Zhengbo Wang
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China
| | - Dong Chen
- Center for Genome Analysis, ABLife Incorporated, Wuhan 430075, China
| | - Bowen Zhang
- School of Life Science, CAS Key Laboratory of Brain Function and Disease, CAS Center for Excellence in Molecular Cell Science, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Ren-Rong Tian
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China
| | - Jing Wu
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China
| | - Ying Zhang
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China
| | - Kaiyu Xu
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming 650223, China
| | - Liu-Meng Yang
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China
| | - Chao Cheng
- Center for Genome Analysis, ABLife Incorporated, Wuhan 430075, China
| | - Jian Ma
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming 650223, China
| | - Longbao Lv
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China.,Kunming Primate Research Center of the Chinese Academy of Sciences, Kunming, Yunnan 650223, China
| | - Yong-Tang Zheng
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China.,Kunming Primate Research Center of the Chinese Academy of Sciences, Kunming, Yunnan 650223, China
| | - Xintian Hu
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China.,Kunming Primate Research Center of the Chinese Academy of Sciences, Kunming, Yunnan 650223, China.,CAS Center for Excellence in Brain Science and Intelligence Technology, Hefei, Anhui 230027, China
| | - Yi Zhang
- Center for Genome Analysis, ABLife Incorporated, Wuhan 430075, China.,Laboratory for Genome Regulation and Human Health, ABLife Incorporated, Wuhan 430075, China
| | - Xiangting Wang
- School of Life Science, CAS Key Laboratory of Brain Function and Disease, CAS Center for Excellence in Molecular Cell Science, University of Science and Technology of China, Hefei, Anhui 230026, China.,CAS Center for Excellence in Molecular Cell Science, Hefei, Anhui 230027, China
| | - Jiali Li
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China.,Kunming Primate Research Center of the Chinese Academy of Sciences, Kunming, Yunnan 650223, China
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352
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Functions of long non-coding RNAs in human disease and their conservation in Drosophila development. Biochem Soc Trans 2017; 45:895-904. [PMID: 28673935 DOI: 10.1042/bst20160428] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 05/18/2017] [Accepted: 05/31/2017] [Indexed: 02/06/2023]
Abstract
Genomic analysis has found that the transcriptome in both humans and Drosophila melanogaster features large numbers of long non-coding RNA transcripts (lncRNAs). This recently discovered class of RNAs regulates gene expression in diverse ways and has been involved in a large variety of important biological functions. Importantly, an increasing number of lncRNAs have also been associated with a range of human diseases, including cancer. Comparative analyses of their functions among these organisms suggest that some of their modes of action appear to be conserved. This highlights the importance of model organisms such as Drosophila, which shares many gene regulatory networks with humans, in understanding lncRNA function and its possible impact in human health. This review discusses some known functions and mechanisms of action of lncRNAs and their implication in human diseases, together with their functional conservation and relevance in Drosophila development.
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353
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Lopez-Ezquerra A, Harrison MC, Bornberg-Bauer E. Comparative analysis of lincRNA in insect species. BMC Evol Biol 2017; 17:155. [PMID: 28673235 PMCID: PMC5494802 DOI: 10.1186/s12862-017-0985-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 06/02/2017] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND The ever increasing availability of genomes makes it possible to investigate and compare not only the genomic complements of genes and proteins, but also of RNAs. One class of RNAs, the long noncoding RNAs (lncRNAs) and, in particular, their subclass of long intergenic noncoding RNAs (lincRNAs) have recently gained much attention because of their roles in regulation of important biological processes such as immune response or cell differentiation and as possible evolutionary precursors for protein coding genes. lincRNAs seem to be poorly conserved at the sequence level but at least some lincRNAs have conserved structural elements and syntenic genomic positions. Previous studies showed that transposable elements are a main contribution to the evolution of lincRNAs in mammals. In contrast, plant lincRNA emergence and evolution has been linked with local duplication events. However, little is known about their evolutionary dynamics in general and in insect genomes in particular. RESULTS Here we compared lincRNAs between seven insect genomes and investigated possible evolutionary changes and functional roles. We find very low sequence conservation between different species and that similarities within a species are mostly due to their association with transposable elements (TE) and simple repeats. Furthermore, we find that TEs are less frequent in lincRNA exons than in their introns, indicating that TEs may have been removed by selection. When we analysed the predicted thermodynamic stabilities of lincRNAs we found that they are more stable than their randomized controls which might indicate some selection pressure to maintain certain structural elements. We list several of the most stable lincRNAs which could serve as prime candidates for future functional studies. We also discuss the possibility of de novo protein coding genes emerging from lincRNAs. This is because lincRNAs with high GC content and potentially with longer open reading frames (ORF) are candidate loci where de novo gene emergence might occur. CONCLUSION The processes responsible for the emergence and diversification of lincRNAs in insects remain unclear. Both duplication and transposable elements may be important for the creation of new lincRNAs in insects.
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Affiliation(s)
- Alberto Lopez-Ezquerra
- Institute of Evolution and Biodiversity, University of Münster, Hüfferstrasse,1, Münster, Münster, Germany
| | - Mark C Harrison
- Institute of Evolution and Biodiversity, University of Münster, Hüfferstrasse,1, Münster, Münster, Germany
| | - Erich Bornberg-Bauer
- Institute of Evolution and Biodiversity, University of Münster, Hüfferstrasse,1, Münster, Münster, Germany.
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354
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Abstract
Cross-species comparisons of genomes, transcriptomes and gene regulation are now feasible at unprecedented resolution and throughput, enabling the comparison of human and mouse biology at the molecular level. Insights have been gained into the degree of conservation between human and mouse at the level of not only gene expression but also epigenetics and inter-individual variation. However, a number of limitations exist, including incomplete transcriptome characterization and difficulties in identifying orthologous phenotypes and cell types, which are beginning to be addressed by emerging technologies. Ultimately, these comparisons will help to identify the conditions under which the mouse is a suitable model of human physiology and disease, and optimize the use of animal models.
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Affiliation(s)
- Alessandra Breschi
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Dr. Aiguader 88, 08003 Barcelona, Spain
- Universitat Pompeu Fabra (UPF), 08002 Barcelona, Spain
| | - Thomas R Gingeras
- Cold Spring Harbor Laboratory, Cold Spring Harbor, New York 11742, USA
| | - Roderic Guigó
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Dr. Aiguader 88, 08003 Barcelona, Spain
- Universitat Pompeu Fabra (UPF), 08002 Barcelona, Spain
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355
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Delás MJ, Hannon GJ. lncRNAs in development and disease: from functions to mechanisms. Open Biol 2017; 7:170121. [PMID: 28747406 PMCID: PMC5541349 DOI: 10.1098/rsob.170121] [Citation(s) in RCA: 113] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 07/03/2017] [Indexed: 02/06/2023] Open
Abstract
Differential expression of long non-coding RNAs (lncRNAs) during differentiation and their misregulation in cancer highlight their potential as cell fate regulators. While some example lncRNAs have been characterized in great detail, the functional in vivo relevance of others has been called into question. Finding functional lncRNAs will most probably require a combination of complementary approaches that will greatly vary depending on their mode of action. In this review, we discuss the different tools available to dissect genetically lncRNA requirements and how each is best suited to studies in particular contexts. Moreover, we review different strategies used to select candidate lncRNAs and give an overview of lncRNAs described to regulate development and cancer through different mechanisms.
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Affiliation(s)
- M Joaquina Delás
- Watson School of Biological Sciences, Cold Spring Harbor Laboratory, New York, NY 11724, USA
- Cancer Research UK Cambridge Institute, Li Ka Shing Centre, University of Cambridge, Cambridge CB2 0RE, UK
| | - Gregory J Hannon
- Watson School of Biological Sciences, Cold Spring Harbor Laboratory, New York, NY 11724, USA
- Cancer Research UK Cambridge Institute, Li Ka Shing Centre, University of Cambridge, Cambridge CB2 0RE, UK
- New York Genome Center, 101 6th Ave, New York, NY 10013, USA
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356
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Sundaram GM, Veera Bramhachari P. Molecular interplay of pro-inflammatory transcription factors and non-coding RNAs in esophageal squamous cell carcinoma. Tumour Biol 2017; 39:1010428317705760. [PMID: 28618941 DOI: 10.1177/1010428317705760] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Esophageal squamous cell carcinoma is the sixth most common cancer in the developing world. The aggressive nature of esophageal squamous cell carcinoma, its tendency for relapse, and the poor survival prospects of patients diagnosed at advanced stages, represent a pressing need for the development of new therapies for this disease. Chronic inflammation is known to have a causal link to cancer pre-disposition. Nuclear factor kappa B and signal transducer and activator of transcription 3 are transcription factors which regulate immunity and inflammation and are emerging as key regulators of tumor initiation, progression, and metastasis. Although these pro-inflammatory factors in esophageal squamous cell carcinoma have been well-characterized with reference to protein-coding targets, their functional interactions with non-coding RNAs have only recently been gaining attention. Non-coding RNAs, especially microRNAs and long non-coding RNAs demonstrate potential as biomarkers and alternative therapeutic targets. In this review, we summarize the recent literature and concepts on non-coding RNAs that are regulated by/regulate nuclear factor kappa B and signal transducer and activator of transcription 3 in esophageal cancer progression. We also discuss how these recent discoveries can pave way for future therapeutic options to treat esophageal squamous cell carcinoma.
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Affiliation(s)
- Gopinath M Sundaram
- 1 Institute of Medical Biology, Agency for Science Technology and Research (A*STAR), Singapore
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357
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Abstract
Background Mammary glands of dairy cattle produce milk for the newborn offspring and for human consumption. Long intergenic noncoding RNAs (lincRNAs) play various functions in eukaryotic cells. However, types and roles of lincRNAs in bovine mammary glands are still poorly understood. Results Using computational methods, 886 unknown intergenic transcripts (UITs) were identified from five RNA-seq datasets from bovine mammary glands. Their non-coding potentials were predicted by using the combination of four software programs (CPAT, CNCI, CPC and hmmscan), with 184 lincRNAs identified. By comparison to the NONCODE2016 database and a domestic-animal long noncoding RNA database (ALDB), 112 novel lincRNAs were revealed in bovine mammary glands. Many lincRNAs were found to be located in quantitative trait loci (QTL). In particular, 36 lincRNAs were found in 172 milk related QTLs, whereas one lincRNA was within clinical mastitis QTL region. In addition, targeted genes for 10 lincRNAs with the highest fragments per kilobase of transcript per million fragments mapped (FPKM) were predicted by LncTar for forecasting potential biological functions of these lincRNAs. Further analyses indicate involvement of lincRNAs in several biological functions and different pathways. Conclusion Our study has provided a panoramic view of lincRNAs in bovine mammary glands and suggested their involvement in many biological functions including susceptibility to clinical mastitis as well as milk quality and production. This integrative annotation of mammary gland lincRNAs broadens and deepens our understanding of bovine mammary gland biology. Electronic supplementary material The online version of this article (doi:10.1186/s12864-017-3858-4) contains supplementary material, which is available to authorized users.
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358
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Chuang TD, Khorram O. Expression Profiling of lncRNAs, miRNAs, and mRNAs and Their Differential Expression in Leiomyoma Using Next-Generation RNA Sequencing. Reprod Sci 2017; 25:246-255. [DOI: 10.1177/1933719117711265] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Tsai-Der Chuang
- LA-Biomed Research Institute, Torrance, CA, USA
- Department of Obstetrics and Gynecology, Harbor-UCLA Medical Center, Torrance, CA, USA
| | - Omid Khorram
- LA-Biomed Research Institute, Torrance, CA, USA
- Department of Obstetrics and Gynecology, Harbor-UCLA Medical Center, Torrance, CA, USA
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359
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Cora' D, Re A, Caselle M, Bussolino F. MicroRNA-mediated regulatory circuits: outlook and perspectives. Phys Biol 2017; 14:045001. [PMID: 28586314 DOI: 10.1088/1478-3975/aa6f21] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
MicroRNAs have been found to be necessary for regulating genes implicated in almost all signaling pathways, and consequently their dysfunction influences many diseases, including cancer. Understanding of the complexity of the microRNA-mediated regulatory network has grown in terms of size, connectivity and dynamics with the development of computational and, more recently, experimental high-throughput approaches for microRNA target identification. Newly developed studies on recurrent microRNA-mediated circuits in regulatory networks, also known as network motifs, have substantially contributed to addressing this complexity, and therefore to helping understand the ways by which microRNAs achieve their regulatory role. This review provides a summarizing view of the state-of-the-art, and perspectives of research efforts on microRNA-mediated regulatory motifs. In this review, we discuss the topological properties characterizing different types of circuits, and the regulatory features theoretically enabled by such properties, with a special emphasis on examples of circuits typifying their biological significance in experimentally validated contexts. Finally, we will consider possible future developments, in particular regarding microRNA-mediated circuits involving long non-coding RNAs and epigenetic regulators.
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Affiliation(s)
- Davide Cora'
- Department of Oncology, University of Torino, Str. Prov. 142 Km 3.95, I-10060 Candiolo, Italy. Candiolo Cancer Institute-FPO, IRCCS, Str. Prov. 142 Km 3.95, I-10060 Candiolo, Italy. Center for Molecular Systems Biology, University of Torino, Regione Gonzole 10, I-10043 Orbassano, Italy. Current address: Department of Translational Medicine, Piemonte Orientale University 'Amedeo Avogadro', Via Solaroli 17, I-28100 Novara, Italy
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360
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Deveson IW, Hardwick SA, Mercer TR, Mattick JS. The Dimensions, Dynamics, and Relevance of the Mammalian Noncoding Transcriptome. Trends Genet 2017; 33:464-478. [PMID: 28535931 DOI: 10.1016/j.tig.2017.04.004] [Citation(s) in RCA: 148] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 04/24/2017] [Indexed: 01/02/2023]
Abstract
The combination of pervasive transcription and prolific alternative splicing produces a mammalian transcriptome of great breadth and diversity. The majority of transcribed genomic bases are intronic, antisense, or intergenic to protein-coding genes, yielding a plethora of short and long non-protein-coding regulatory RNAs. Long noncoding RNAs (lncRNAs) share most aspects of their biogenesis, processing, and regulation with mRNAs. However, lncRNAs are typically expressed in more restricted patterns, frequently from enhancers, and exhibit almost universal alternative splicing. These features are consistent with their role as modular epigenetic regulators. We describe here the key studies and technological advances that have shaped our understanding of the dimensions, dynamics, and biological relevance of the mammalian noncoding transcriptome.
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Affiliation(s)
- Ira W Deveson
- Genomics and Epigenetics Division, Garvan Institute of Medical Research, Sydney, NSW, Australia; School of Biotechnology and Biomolecular Sciences, Faculty of Science, University of New South Wales, Sydney, NSW, Australia
| | - Simon A Hardwick
- Genomics and Epigenetics Division, Garvan Institute of Medical Research, Sydney, NSW, Australia; St Vincent's Clinical School, University of New South Wales, Sydney, NSW, Australia
| | - Tim R Mercer
- Genomics and Epigenetics Division, Garvan Institute of Medical Research, Sydney, NSW, Australia; St Vincent's Clinical School, University of New South Wales, Sydney, NSW, Australia
| | - John S Mattick
- Genomics and Epigenetics Division, Garvan Institute of Medical Research, Sydney, NSW, Australia; School of Biotechnology and Biomolecular Sciences, Faculty of Science, University of New South Wales, Sydney, NSW, Australia; St Vincent's Clinical School, University of New South Wales, Sydney, NSW, Australia.
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361
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Nelson ADL, Devisetty UK, Palos K, Haug-Baltzell AK, Lyons E, Beilstein MA. Evolinc: A Tool for the Identification and Evolutionary Comparison of Long Intergenic Non-coding RNAs. Front Genet 2017; 8:52. [PMID: 28536600 PMCID: PMC5422434 DOI: 10.3389/fgene.2017.00052] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 04/12/2017] [Indexed: 11/25/2022] Open
Abstract
Long intergenic non-coding RNAs (lincRNAs) are an abundant and functionally diverse class of eukaryotic transcripts. Reported lincRNA repertoires in mammals vary, but are commonly in the thousands to tens of thousands of transcripts, covering ~90% of the genome. In addition to elucidating function, there is particular interest in understanding the origin and evolution of lincRNAs. Aside from mammals, lincRNA populations have been sparsely sampled, precluding evolutionary analyses focused on their emergence and persistence. Here we present Evolinc, a two-module pipeline designed to facilitate lincRNA discovery and characterize aspects of lincRNA evolution. The first module (Evolinc-I) is a lincRNA identification workflow that also facilitates downstream differential expression analysis and genome browser visualization of identified lincRNAs. The second module (Evolinc-II) is a genomic and transcriptomic comparative analysis workflow that determines the phylogenetic depth to which a lincRNA locus is conserved within a user-defined group of related species. Here we validate lincRNA catalogs generated with Evolinc-I against previously annotated Arabidopsis and human lincRNA data. Evolinc-I recapitulated earlier findings and uncovered an additional 70 Arabidopsis and 43 human lincRNAs. We demonstrate the usefulness of Evolinc-II by examining the evolutionary histories of a public dataset of 5,361 Arabidopsis lincRNAs. We used Evolinc-II to winnow this dataset to 40 lincRNAs conserved across species in Brassicaceae. Finally, we show how Evolinc-II can be used to recover the evolutionary history of a known lincRNA, the human telomerase RNA (TERC). These latter analyses revealed unexpected duplication events as well as the loss and subsequent acquisition of a novel TERC locus in the lineage leading to mice and rats. The Evolinc pipeline is currently integrated in CyVerse's Discovery Environment and is free for use by researchers.
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Affiliation(s)
- Andrew D L Nelson
- Beilstein Lab, School of Plant Sciences, University of ArizonaTucson, AZ, USA
| | | | - Kyle Palos
- Beilstein Lab, School of Plant Sciences, University of ArizonaTucson, AZ, USA
| | - Asher K Haug-Baltzell
- Lyons Lab, Genetics Graduate Interdisciplinary Group, University of ArizonaTucson, AZ, USA
| | - Eric Lyons
- CyVerse, Bio5, University of ArizonaTucson, AZ, USA.,Lyons Lab, Genetics Graduate Interdisciplinary Group, University of ArizonaTucson, AZ, USA
| | - Mark A Beilstein
- Beilstein Lab, School of Plant Sciences, University of ArizonaTucson, AZ, USA
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362
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Wucher V, Legeai F, Hédan B, Rizk G, Lagoutte L, Leeb T, Jagannathan V, Cadieu E, David A, Lohi H, Cirera S, Fredholm M, Botherel N, Leegwater PA, Le Béguec C, Fieten H, Johnson J, Alföldi J, André C, Lindblad-Toh K, Hitte C, Derrien T. FEELnc: a tool for long non-coding RNA annotation and its application to the dog transcriptome. Nucleic Acids Res 2017; 45:e57. [PMID: 28053114 PMCID: PMC5416892 DOI: 10.1093/nar/gkw1306] [Citation(s) in RCA: 192] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 12/13/2016] [Accepted: 12/14/2016] [Indexed: 12/13/2022] Open
Abstract
Whole transcriptome sequencing (RNA-seq) has become a standard for cataloguing and monitoring RNA populations. One of the main bottlenecks, however, is to correctly identify the different classes of RNAs among the plethora of reconstructed transcripts, particularly those that will be translated (mRNAs) from the class of long non-coding RNAs (lncRNAs). Here, we present FEELnc (FlExible Extraction of LncRNAs), an alignment-free program that accurately annotates lncRNAs based on a Random Forest model trained with general features such as multi k-mer frequencies and relaxed open reading frames. Benchmarking versus five state-of-the-art tools shows that FEELnc achieves similar or better classification performance on GENCODE and NONCODE data sets. The program also provides specific modules that enable the user to fine-tune classification accuracy, to formalize the annotation of lncRNA classes and to identify lncRNAs even in the absence of a training set of non-coding RNAs. We used FEELnc on a real data set comprising 20 canine RNA-seq samples produced by the European LUPA consortium to substantially expand the canine genome annotation to include 10 374 novel lncRNAs and 58 640 mRNA transcripts. FEELnc moves beyond conventional coding potential classifiers by providing a standardized and complete solution for annotating lncRNAs and is freely available at https://github.com/tderrien/FEELnc.
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Affiliation(s)
- Valentin Wucher
- Institut Génétique et Développement de Rennes, CNRS, UMR6290, University Rennes1, Rennes, Cedex 35043, France
| | - Fabrice Legeai
- IGEPP, BIPAA, INRA, Campus Beaulieu, Le Rheu 35653, France
- Institut National de Recherche en Informatique et en Automatique, Institut de Recherche en Informatique et Systèmes Aléatoires, Genscale, Campus Beaulieu, Rennes 35042, France
| | - Benoît Hédan
- Institut Génétique et Développement de Rennes, CNRS, UMR6290, University Rennes1, Rennes, Cedex 35043, France
| | - Guillaume Rizk
- Institut National de Recherche en Informatique et en Automatique, Institut de Recherche en Informatique et Systèmes Aléatoires, Genscale, Campus Beaulieu, Rennes 35042, France
| | - Lætitia Lagoutte
- Institut Génétique et Développement de Rennes, CNRS, UMR6290, University Rennes1, Rennes, Cedex 35043, France
| | - Tosso Leeb
- Institute of Genetics, Vetsuisse Faculty, University of Bern, Bern 3001, Switzerland
| | - Vidhya Jagannathan
- Institute of Genetics, Vetsuisse Faculty, University of Bern, Bern 3001, Switzerland
| | - Edouard Cadieu
- Institut Génétique et Développement de Rennes, CNRS, UMR6290, University Rennes1, Rennes, Cedex 35043, France
| | - Audrey David
- IGEPP, BIPAA, INRA, Campus Beaulieu, Le Rheu 35653, France
| | - Hannes Lohi
- Department of Veterinary Biosciences and Research Programs Unit, Molecular Neurology, University of Helsinki, PO Box 63, Helsinki 00014, Finland
- The Folkhälsan Institute of Genetics, Helsinki 00014, Finland
| | - Susanna Cirera
- Department of Veterinary Clinical and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen 1870, Denmark
| | - Merete Fredholm
- Department of Veterinary Clinical and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen 1870, Denmark
| | - Nadine Botherel
- Institut Génétique et Développement de Rennes, CNRS, UMR6290, University Rennes1, Rennes, Cedex 35043, France
| | - Peter A.J. Leegwater
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht 3584CM, the Netherlands
| | - Céline Le Béguec
- Institut Génétique et Développement de Rennes, CNRS, UMR6290, University Rennes1, Rennes, Cedex 35043, France
| | - Hille Fieten
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht 3584CM, the Netherlands
| | - Jeremy Johnson
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Jessica Alföldi
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Catherine André
- Institut Génétique et Développement de Rennes, CNRS, UMR6290, University Rennes1, Rennes, Cedex 35043, France
| | - Kerstin Lindblad-Toh
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
- Science for Life Laboratory, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala 751 23, Sweden
| | - Christophe Hitte
- Institut Génétique et Développement de Rennes, CNRS, UMR6290, University Rennes1, Rennes, Cedex 35043, France
| | - Thomas Derrien
- Institut Génétique et Développement de Rennes, CNRS, UMR6290, University Rennes1, Rennes, Cedex 35043, France
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363
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Emerging roles for ncRNAs in alcohol use disorders. Alcohol 2017; 60:31-39. [PMID: 28438526 DOI: 10.1016/j.alcohol.2017.01.004] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Revised: 01/04/2017] [Accepted: 01/04/2017] [Indexed: 12/21/2022]
Abstract
Chronic alcohol exposure produces widespread neuroadaptations and alterations in gene expression in human alcoholics and animal models. Technological advances in the past decade have increasingly highlighted the role of non-protein-coding RNAs (ncRNAs) in the regulation of gene expression and function. These recently characterized molecules were discovered to mediate diverse processes in the central nervous system, from normal development and physiology to regulation of disease, including alcoholism and other psychiatric disorders. This review will investigate the recent studies in human alcoholics and rodent models that have profiled different classes of ncRNAs and their dynamic alcohol-dependent regulation in brain.
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364
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Gaiti F, Jindrich K, Fernandez-Valverde SL, Roper KE, Degnan BM, Tanurdžić M. Landscape of histone modifications in a sponge reveals the origin of animal cis-regulatory complexity. eLife 2017; 6:22194. [PMID: 28395144 PMCID: PMC5429095 DOI: 10.7554/elife.22194] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Accepted: 03/27/2017] [Indexed: 01/24/2023] Open
Abstract
Combinatorial patterns of histone modifications regulate developmental and cell type-specific gene expression and underpin animal complexity, but it is unclear when this regulatory system evolved. By analysing histone modifications in a morphologically-simple, early branching animal, the sponge Amphimedonqueenslandica, we show that the regulatory landscape used by complex bilaterians was already in place at the dawn of animal multicellularity. This includes distal enhancers, repressive chromatin and transcriptional units marked by H3K4me3 that vary with levels of developmental regulation. Strikingly, Amphimedon enhancers are enriched in metazoan-specific microsyntenic units, suggesting that their genomic location is extremely ancient and likely to place constraints on the evolution of surrounding genes. These results suggest that the regulatory foundation for spatiotemporal gene expression evolved prior to the divergence of sponges and eumetazoans, and was necessary for the evolution of animal multicellularity.
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Affiliation(s)
- Federico Gaiti
- School of Biological Sciences, University of Queensland, Brisbane, Australia
| | - Katia Jindrich
- School of Biological Sciences, University of Queensland, Brisbane, Australia
| | | | - Kathrein E Roper
- School of Biological Sciences, University of Queensland, Brisbane, Australia
| | - Bernard M Degnan
- School of Biological Sciences, University of Queensland, Brisbane, Australia
| | - Miloš Tanurdžić
- School of Biological Sciences, University of Queensland, Brisbane, Australia
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365
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Deguchi S, Katsushima K, Hatanaka A, Shinjo K, Ohka F, Wakabayashi T, Zong H, Natsume A, Kondo Y. Oncogenic effects of evolutionarily conserved noncoding RNA ECONEXIN on gliomagenesis. Oncogene 2017; 36:4629-4640. [PMID: 28368417 DOI: 10.1038/onc.2017.88] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 02/23/2017] [Accepted: 02/26/2017] [Indexed: 01/02/2023]
Abstract
Accumulating studies have demonstrated the importance of long noncoding RNAs (lncRNAs) during oncogenic transformation. However, because most lncRNAs are currently uncharacterized, the identification of novel oncogenic lncRNAs is difficult. Given that intergenic lncRNA have substantially less sequence conservation patterns than protein-coding genes across species, evolutionary conserved intergenic lncRNAs are likely to be functional. The current study identified a novel intergenic lncRNA, LINC00461 (ECONEXIN) using a combined approach consisting of searching lncRNAs by evolutionary conservation and validating their expression in a glioma mouse model. ECONEXIN was the most highly conserved intergenic lncRNA containing 83.0% homology with the mouse ortholog (C130071C03Rik) for a region over 2500 bp in length within its exon 3. Expressions of ECONEXIN and C130071C03Rik were significantly upregulated in both human and mouse glioma tissues. Moreover, the expression of C130071C03Rik was upregulated even in precancerous conditions and markedly increased during glioma progression. Functional analysis of ECONEXIN in glioma cell lines, U87 and U251, showed it was dominantly located in the cytoplasm and interacted with miR-411-5p via two binding sites within ECONEXIN. Inhibition of ECONEXIN upregulated miR-411-5p together with the downregulation of its target, Topoisomerase 2 alpha (TOP2A), in glioma cell lines, resulting in decreased cell proliferation. Our data demonstrated that ECONEXIN is a potential oncogene that regulates TOP2A by sponging miR-411-5p in glioma. In addition, our investigative approaches to identify conserved lncRNA and their molecular characterization by validation in mouse tumor models may be useful to functionally annotate novel lncRNAs, especially cancer-associated lncRNAs.
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Affiliation(s)
- S Deguchi
- Department of Epigenomics, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.,Department of Neurosurgery, Nagoya University School of Medicine, Nagoya, Japan
| | - K Katsushima
- Department of Epigenomics, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - A Hatanaka
- Department of Epigenomics, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - K Shinjo
- Department of Epigenomics, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - F Ohka
- Department of Neurosurgery, Nagoya University School of Medicine, Nagoya, Japan
| | - T Wakabayashi
- Department of Neurosurgery, Nagoya University School of Medicine, Nagoya, Japan
| | - H Zong
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - A Natsume
- Department of Neurosurgery, Nagoya University School of Medicine, Nagoya, Japan
| | - Y Kondo
- Department of Epigenomics, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
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366
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Wallaert A, Durinck K, Taghon T, Van Vlierberghe P, Speleman F. T-ALL and thymocytes: a message of noncoding RNAs. J Hematol Oncol 2017; 10:66. [PMID: 28270163 PMCID: PMC5341419 DOI: 10.1186/s13045-017-0432-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Accepted: 02/24/2017] [Indexed: 02/06/2023] Open
Abstract
In the last decade, the role for noncoding RNAs in disease was clearly established, starting with microRNAs and later expanded towards long noncoding RNAs. This was also the case for T cell acute lymphoblastic leukemia, which is a malignant blood disorder arising from oncogenic events during normal T cell development in the thymus. By studying the transcriptomic profile of protein-coding genes, several oncogenic events leading to T cell acute lymphoblastic leukemia (T-ALL) could be identified. In recent years, it became apparent that several of these oncogenes function via microRNAs and long noncoding RNAs. In this review, we give a detailed overview of the studies that describe the noncoding RNAome in T-ALL oncogenesis and normal T cell development.
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Affiliation(s)
- Annelynn Wallaert
- Center for Medical Genetics, Ghent University, Ghent, Belgium. .,Cancer Research Institute Ghent, Ghent, Belgium.
| | - Kaat Durinck
- Center for Medical Genetics, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent, Ghent, Belgium
| | - Tom Taghon
- Cancer Research Institute Ghent, Ghent, Belgium.,Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium
| | - Pieter Van Vlierberghe
- Center for Medical Genetics, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent, Ghent, Belgium
| | - Frank Speleman
- Center for Medical Genetics, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent, Ghent, Belgium
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367
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An atlas of human long non-coding RNAs with accurate 5' ends. Nature 2017; 543:199-204. [PMID: 28241135 DOI: 10.1038/nature21374] [Citation(s) in RCA: 700] [Impact Index Per Article: 100.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 01/08/2017] [Indexed: 12/15/2022]
Abstract
Long non-coding RNAs (lncRNAs) are largely heterogeneous and functionally uncharacterized. Here, using FANTOM5 cap analysis of gene expression (CAGE) data, we integrate multiple transcript collections to generate a comprehensive atlas of 27,919 human lncRNA genes with high-confidence 5' ends and expression profiles across 1,829 samples from the major human primary cell types and tissues. Genomic and epigenomic classification of these lncRNAs reveals that most intergenic lncRNAs originate from enhancers rather than from promoters. Incorporating genetic and expression data, we show that lncRNAs overlapping trait-associated single nucleotide polymorphisms are specifically expressed in cell types relevant to the traits, implicating these lncRNAs in multiple diseases. We further demonstrate that lncRNAs overlapping expression quantitative trait loci (eQTL)-associated single nucleotide polymorphisms of messenger RNAs are co-expressed with the corresponding messenger RNAs, suggesting their potential roles in transcriptional regulation. Combining these findings with conservation data, we identify 19,175 potentially functional lncRNAs in the human genome.
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368
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Hua J, Lu J, Isaev K, Soares F, Guo H, Ahmed M, He HH. Noncoding RNA for personalized prostate cancer treatment: utilizing the 'dark matters' of the genome. Per Med 2017; 14:159-169. [PMID: 29754555 DOI: 10.2217/pme-2016-0090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Prostate cancer is the most commonly diagnosed cancer in men in western countries, with significant health impact. Clinically, it is complicated with the lack of biomarkers and effective treatments for aggressive disease, particularly castration-resistant prostate cancer. Although we have gained much insight into the biology of prostate cancer through studying protein-coding genes, they represent only a small fraction of our genome. Therefore, it is essential for us to investigate noncoding RNAs, which comprise the majority of our transcriptome, in order to achieve a better understanding of prostate cancer and move toward personalized medicine. In this article, we will address recent advancements in our knowledge of noncoding RNAs, and discuss the clinical potentials and challenges of different types of noncoding RNAs in prostate cancer.
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Affiliation(s)
- Junjie Hua
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada.,Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
| | - Jennifer Lu
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada.,Department of Laboratory Medicine & Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Keren Isaev
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada.,Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
| | - Fraser Soares
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Haiyang Guo
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Musaddeque Ahmed
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Housheng Hansen He
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada.,Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
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369
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Selleri L, Bartolomei MS, Bickmore WA, He L, Stubbs L, Reik W, Barsh GS. A Hox-Embedded Long Noncoding RNA: Is It All Hot Air? PLoS Genet 2016; 12:e1006485. [PMID: 27977680 PMCID: PMC5157941 DOI: 10.1371/journal.pgen.1006485] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Affiliation(s)
- Licia Selleri
- Program in Craniofacial Biology; Institute of Human Genetics; Eli and Edythe Broad Center of Regeneration Medicine & Stem Cell Research; Department of Orofacial Sciences & Department of Anatomy; University of California San Francisco, San Francisco, California, United States of America
| | - Marisa S. Bartolomei
- Department of Cell and Developmental Biology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Wendy A. Bickmore
- Medical Research Council Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Lin He
- Division of Cellular and Developmental Biology, University of California Berkeley, Berkeley, California, United States of America
| | - Lisa Stubbs
- Institute for Genomic Biology, Department of Cell and Developmental Biology, University of Illinois, Urbana, Illinois, United States of America
| | - Wolf Reik
- Department of Epigenetics, The Babraham Institute, Cambridge, United Kingdom
| | - Gregory S. Barsh
- HudsonAlpha Institute for Biotechnology, Huntsville, Alabama, United States of America
- Department of Genetics, Stanford University School of Medicine, Stanford, California, United States of America
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370
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Gaiti F, Calcino AD, Tanurdžić M, Degnan BM. Origin and evolution of the metazoan non-coding regulatory genome. Dev Biol 2016; 427:193-202. [PMID: 27880868 DOI: 10.1016/j.ydbio.2016.11.013] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Revised: 11/14/2016] [Accepted: 11/18/2016] [Indexed: 02/09/2023]
Abstract
Animals rely on genomic regulatory systems to direct the dynamic spatiotemporal and cell-type specific gene expression that is essential for the development and maintenance of a multicellular lifestyle. Although it is widely appreciated that these systems ultimately evolved from genomic regulatory mechanisms present in single-celled stem metazoans, it remains unclear how this occurred. Here, we focus on the contribution of the non-coding portion of the genome to the evolution of animal gene regulation, specifically on recent insights from non-bilaterian metazoan lineages, and unicellular and colonial holozoan sister taxa. High-throughput next-generation sequencing, largely in bilaterian model species, has led to the discovery of tens of thousands of non-coding RNA genes (ncRNAs), including short, long and circular forms, and uncovered the central roles they play in development. Based on the analysis of non-bilaterian metazoan, unicellular holozoan and fungal genomes, the evolution of some ncRNAs, such as Piwi-interacting RNAs, correlates with the emergence of metazoan multicellularity, while others, including microRNAs, long non-coding RNAs and circular RNAs, appear to be more ancient. Analysis of non-coding regulatory DNA and histone post-translational modifications have revealed that some cis-regulatory mechanisms, such as those associated with proximal promoters, are present in non-animal holozoans, while others appear to be metazoan innovations, most notably distal enhancers. In contrast, the cohesin-CTCF system for regulating higher-order chromatin structure and enhancer-promoter long-range interactions appears to be restricted to bilaterians. Taken together, most bilaterian non-coding regulatory mechanisms appear to have originated before the divergence of crown metazoans. However, differential expansion of non-coding RNA and cis-regulatory DNA repertoires in bilaterians may account for their increased regulatory and morphological complexity relative to non-bilaterians.
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Affiliation(s)
- Federico Gaiti
- School of Biological Sciences, University of Queensland, Brisbane, Australia.
| | - Andrew D Calcino
- Department of Integrative Zoology, University of Vienna, Vienna, Austria.
| | - Miloš Tanurdžić
- School of Biological Sciences, University of Queensland, Brisbane, Australia.
| | - Bernard M Degnan
- School of Biological Sciences, University of Queensland, Brisbane, Australia.
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371
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372
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Abstract
A genome sequence is worthless if it cannot be deciphered; therefore, efforts to describe - or 'annotate' - genes began as soon as DNA sequences became available. Whereas early work focused on individual protein-coding genes, the modern genomic ocean is a complex maelstrom of alternative splicing, non-coding transcription and pseudogenes. Scientists - from clinicians to evolutionary biologists - need to navigate these waters, and this has led to the design of high-throughput, computationally driven annotation projects. The catalogues that are being produced are key resources for genome exploration, especially as they become integrated with expression, epigenomic and variation data sets. Their creation, however, remains challenging.
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Affiliation(s)
- Jonathan M Mudge
- Department of Computational Genomics, Wellcome Trust Sanger Institute, Hinxton CB10 1SA, UK
| | - Jennifer Harrow
- Department of Computational Genomics, Wellcome Trust Sanger Institute, Hinxton CB10 1SA, UK.,Illumina Cambridge Ltd, Chesterford Research Park, Little Chesterford, Saffron Walden CB10 1 XL, UK
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