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https://www.readbyqxmd.com/read/28646208/a-comprehensive-mouse-transcriptomic-bodymap-across-17-tissues-by-rna-seq
#1
Bin Li, Tao Qing, Jinhang Zhu, Zhuo Wen, Ying Yu, Ryutaro Fukumura, Yuanting Zheng, Yoichi Gondo, Leming Shi
The mouse has been widely used as a model organism for studying human diseases and for evaluating drug safety and efficacy. Many diseases and drug effects exhibit tissue specificity that may be reflected by tissue-specific gene-expression profiles. Here we construct a comprehensive mouse transcriptomic BodyMap across 17 tissues of six-weeks old C57BL/6JJcl mice using RNA-seq. We find different expression patterns between protein-coding and non-coding genes. Liver expressed the least complex transcriptomes, that is, the smallest number of genes detected in liver across all 17 tissues, whereas testis and ovary harbor more complex transcriptomes than other tissues...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28646201/comprehensive-investigation-of-temporal-and-autism-associated-cell-type-composition-dependent-and-independent-gene-expression-changes-in-human-brains
#2
Qianhui Yu, Zhisong He
The functions of human brains highly depend on the precise temporal regulation of gene expression, and the temporal brain transcriptome profile across lifespan has been observed. The substantial transcriptome alteration in neural disorders like autism has also been observed and is thought to be important for the pathology. While the cell type composition is known to be variable in brains, it remains unclear how it contributes to the temporal and pathological transcriptome changes in brains. Here, we applied a transcriptome deconvolution procedure to an age series RNA-seq dataset of healthy and autism samples, to quantify the contribution of cell type composition in shaping the temporal and autism pathological transcriptome in human brains...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28646175/ribosome-rna-profiling-to-quantify-ovarian-development-and-identify-sex-in-fish
#3
Zhi-Gang Shen, Hong Yao, Liang Guo, Xiao-Xia Li, Han-Ping Wang
Terminologies of ovary development, by somewhat subjective describing and naming main changes of oocytes, have been criticized for confusing and inconsistency of terms and classifications, and the incurred consequences impede communication among researchers. In the present work, we developed regression between ovary development and three ribosome RNA (rRNA) indexes, namely 5S rRNA percent, 18S rRNA percent, and 5S-18S rRNA ratio, using close relationship between volume percent of primary growth stage oocytes or gonadosomatic index and rRNA content, demonstrating species-specific quantification of ovary development can be established in species with either synchronous and asynchronous oogenesis...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28645512/the-rna-seq-analysis-suggests-a-potential-multi-component-complement-system-in-oyster-crassostrea-gigas
#4
Lingling Wang, Huan Zhang, Leilei Wang, Daoxiang Zhang, Zhao Lv, Zhaoqun Liu, Weilin Wang, Zhi Zhou, Limei Qiu, Hao Wang, Jun Li, Linsheng Song
The complement system is one of the major effector mechanisms of immune system, playing essential roles in both the innate and adaptive immune responses. In the present study, the counterparts of vertebrate complement components were identified by screening the sequenced genome of Crassostrea gigas, resulting in the identification of 792 gene models containing complement-related domains. The transcriptome of haemocytes at 6, 12 and 24 h post lipopolysaccharides (LPS) stimulation showed differential expression of 77 C1q domain containing proteins, 53 C-type lectins and 42 fibrinogen-related proteins...
June 20, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28645249/comparative-transcriptomic-analysis-of-the-evolution-and-development-of-flower-size-in-saltugilia-polemoniaceae
#5
Jacob B Landis, Douglas E Soltis, Pamela S Soltis
BACKGROUND: Flower size varies dramatically across angiosperms, representing innovations over the course of >130 million years of evolution and contributing substantially to relationships with pollinators. However, the genetic underpinning of flower size is not well understood. Saltugilia (Polemoniaceae) provides an excellent non-model system for extending the genetic study of flower size to interspecific differences that coincide with variation in pollinators. RESULTS: Using targeted gene capture methods, we infer phylogenetic relationships among all members of Saltugilia to provide a framework for investigating the genetic control of flower size differences via RNA-Seq de novo assembly...
June 23, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28645172/the-biogenesis-pathway-of-trna-derived-pirnas-in-bombyx-germ-cells
#6
Shozo Honda, Takuya Kawamura, Phillipe Loher, Keisuke Morichika, Isidore Rigoutsos, Yohei Kirino
Transfer RNAs (tRNAs) function in translational machinery and further serves as a source of short non-coding RNAs (ncRNAs). tRNA-derived ncRNAs show differential expression profiles and play roles in many biological processes beyond translation. Molecular mechanisms that shape and regulate their expression profiles are largely unknown. Here, we report the mechanism of biogenesis for tRNA-derived Piwi-interacting RNAs (td-piRNAs) expressed in Bombyx BmN4 cells. In the cells, two cytoplasmic tRNA species, tRNAAspGUC and tRNAHisGUG, served as major sources for td-piRNAs, which were derived from the 5΄-part of the respective tRNAs...
June 22, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28644879/identification-of-a-novel-fungus-trichoderma-asperellum-gdfs1009-and-comprehensive-evaluation-of-its-biocontrol-efficacy
#7
Qiong Wu, Ruiyan Sun, Mi Ni, Jia Yu, Yaqian Li, Chuanjin Yu, Kai Dou, Jianhong Ren, Jie Chen
Due to its efficient broad-spectrum antimicrobial activity, Trichoderma has been established as an internationally recognized biocontrol fungus. In this study, we found and identified a novel strain of Trichoderma asperellum, named GDFS1009. The mycelium of T. asperellum GDFS1009 exhibits a high growth rate, high sporulation capacity, and strong inhibitory effects against pathogens that cause cucumber fusarium wilt and corn stalk rot. T. asperellum GDFS1009 secretes chitinase, glucanase, and protease, which can degrade the cell walls of fungi and contribute to mycoparasitism...
2017: PloS One
https://www.readbyqxmd.com/read/28643774/insufficient-antibody-validation-challenges-oestrogen-receptor-beta-research
#8
Sandra Andersson, Mårten Sundberg, Nusa Pristovsek, Ahmed Ibrahim, Philip Jonsson, Borbala Katona, Carl-Magnus Clausson, Agata Zieba, Margareta Ramström, Ola Söderberg, Cecilia Williams, Anna Asplund
The discovery of oestrogen receptor β (ERβ/ESR2) was a landmark discovery. Its reported expression and homology with breast cancer pharmacological target ERα (ESR1) raised hopes for improved endocrine therapies. After 20 years of intense research, this has not materialized. We here perform a rigorous validation of 13 anti-ERβ antibodies, using well-characterized controls and a panel of validation methods. We conclude that only one antibody, the rarely used monoclonal PPZ0506, specifically targets ERβ in immunohistochemistry...
June 15, 2017: Nature Communications
https://www.readbyqxmd.com/read/28643089/time-lapse-observation-and-transcriptome-analysis-of-a-case-with-repeated-multiple-pronuclei-after-ivf-icsi
#9
J Dai, L Z Leng, C F Lu, F Gong, S P Zhang, W Zheng, G X Lu, G Lin
PURPOSE: The purpose of this study was to investigate the cause of repeated multipronucleus (MPN) formation in zygotes in a patient after both in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI). METHOD: This is a case study. A patient had unexplained primary infertility with recurring total MPN zygotes after IVF and ICSI cycles. Time-lapse monitoring of pronucleus formation was carried out. Embryos developed from MPN zygotes were analyzed by fluorescence in situ hybridization (FISH)...
June 22, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28642771/transcriptomic-analysis-of-avocado-hass-persea-americana-mill-in-the-interaction-system-fruit-chitosan-colletotrichum
#10
Luis-Ángel Xoca-Orozco, Esther Angélica Cuellar-Torres, Sandra González-Morales, Porfirio Gutiérrez-Martínez, Ulises López-García, Luis Herrera-Estrella, Julio Vega-Arreguín, Alejandra Chacón-López
Avocado (Persea americana) is one of the most important crops in Mexico as it is the main producer, consumer, and exporter of avocado fruit in the world. However, successful avocado commercialization is often reduced by large postharvest losses due to Colletotrichum sp., the causal agent of anthracnose. Chitosan is known to have a direct antifungal effect and acts also as an elicitor capable of stimulating a defense response in plants. However, there is little information regarding the genes that are either activated or repressed in fruits treated with chitosan...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28642749/rna-seq-reveals-enhanced-sugar-metabolism-in-streptococcus-mutans-co-cultured-with-candida-albicans-within-mixed-species-biofilms
#11
Jinzhi He, Dongyeop Kim, Xuedong Zhou, Sang-Joon Ahn, Robert A Burne, Vincent P Richards, Hyun Koo
Early childhood caries (ECC), which can lead to rampant tooth-decay that is painful and costly to treat, is one of the most prevalent infectious diseases affecting children worldwide. Previous studies support that interactions between Streptococcus mutans and Candida albicans are associated with the pathogenesis of ECC. The presence of Candida enhances S. mutans growth, fitness and accumulation within biofilms in vitro, although the molecular basis for these behaviors is undefined. Using an established co-cultivation biofilm model and RNA-Seq, we investigated how C...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28642596/sgbs-cells-as-a-model-of-human-adipocyte-browning-a-comprehensive-comparative-study-with-primary-human-white-subcutaneous-adipocytes
#12
Chia Rou Yeo, Madhur Agrawal, Shawn Hoon, Asim Shabbir, Manu Kunaal Shrivastava, Shiqi Huang, Chin Meng Khoo, Vanna Chhay, M Shabeer Yassin, E Shyong Tai, Antonio Vidal-Puig, Sue-Anne Toh
The Simpson Golabi Behmel Syndrome (SGBS) pre-adipocyte cell strain is widely considered to be a representative in vitro model of human white pre-adipocytes. A recent study suggested that SGBS adipocytes exhibit an unexpected transient brown phenotype. Here, we comprehensively examined key differences between SGBS adipocytes and primary human white subcutaneous (PHWSC) adipocytes. RNA-Seq analysis revealed that extracellular matrix (ECM)-receptor interaction and metabolic pathways were the top two KEGG pathways significantly enriched in SGBS adipocytes, which included positively enriched mitochondrial respiration and oxidation pathways...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28642500/genome-wide-mapping-of-dnase-i-hypersensitive-sites-reveals-chromatin-accessibility-changes-in-arabidopsis-euchromatin-and-heterochromatin-regions-under-extended-darkness
#13
Yue Liu, Wenli Zhang, Kang Zhang, Qi You, Hengyu Yan, Yuannian Jiao, Jiming Jiang, Wenying Xu, Zhen Su
Light, as the energy source in photosynthesis, is essential for plant growth and development. Extended darkness causes dramatic gene expression changes. In this study, we applied DNase-seq (DNase I hypersensitive site sequencing) to study changes of chromatin accessibility in euchromatic and heterochromatic regions under extended darkness in Arabidopsis. We generated 27 Gb DNase-seq and 67.6 Gb RNA-seq data to investigate chromatin accessibility changes and global gene expression under extended darkness and control condition in Arabidopsis...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28642487/hypoxia-is-a-key-driver-of-alternative-splicing-in-human-breast-cancer-cells
#14
Jian Han, Jia Li, Jolene Caifeng Ho, Grace Sushin Chia, Hiroyuki Kato, Sudhakar Jha, Henry Yang, Lorenz Poellinger, Kian Leong Lee
Adaptation to hypoxia, a hallmark feature of many tumors, is an important driver of cancer cell survival, proliferation and the development of resistance to chemotherapy. Hypoxia-induced stabilization of hypoxia-inducible factors (HIFs) leads to transcriptional activation of a network of hypoxia target genes involved in angiogenesis, cell growth, glycolysis, DNA damage repair and apoptosis. Although the transcriptional targets of hypoxia have been characterized, the alternative splicing of transcripts that occurs during hypoxia and the roles they play in oncogenesis are much less understood...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28642475/a-novel-bzip-protein-gsb1-is-required-for-oxidative-stress-response-mating-and-virulence-in-the-human-pathogen-cryptococcus-neoformans
#15
Seon Ah Cheon, Eun Jung Thak, Yong-Sun Bahn, Hyun Ah Kang
The human pathogen Cryptococcus neoformans, which causes life-threatening meningoencephalitis in immunocompromised individuals, normally faces diverse stresses in the human host. Here, we report that a novel, basic, leucine-zipper (bZIP) protein, designated Gsb1 (general stress-related bZIP protein 1), is required for its normal growth and diverse stress responses. C. neoformans gsb1Δ mutants grew slowly even under non-stressed conditions and showed increased sensitivity to high or low temperatures. The hypersensitivity of gsb1Δ to oxidative and nitrosative stresses was reversed by addition of a ROS scavenger...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28642451/il-10-plays-a-pivotal-role-in-tamoxifen-induced-spasmolytic-polypeptide-expressing-metaplasia-in-gastric-mucosa
#16
Chansu Lee, Hyuk Lee, Seo Yun Hwang, Chang Mo Moon, Sung Noh Hong
Background/Aims: Gastric cancer evolves in the pathologic mucosal milieu, and its development is characterized by both the loss of acid-secreting parietal cells and mucosal cell metaplasia, called spasmolytic polypeptide-expressing metaplasia (SPEM). Cytokines, such as interleukin (IL)-10, IL-1β, and IL-6, play a key role in gastric carcinogenesis. However, changes in the cytokine profile of SPEM have not been evaluated. Methods: To induce SPEM in mouse stomachs, C57BL/6 mice were intraperitoneally injected with tamoxifen and sacrificed at 3, 10, and 21 days after treatment...
June 26, 2017: Gut and Liver
https://www.readbyqxmd.com/read/28642063/differential-gene-network-analysis-from-single-cell-rna-seq
#17
Yikai Wang, Hao Wu, Tianwei Yu
No abstract text is available yet for this article.
March 14, 2017: Journal of Genetics and Genomics, Yi Chuan Xue Bao
https://www.readbyqxmd.com/read/28640079/a-genome-wide-association-scan-of-biological-processes-involved-in-oral-lichen-planus-and-oral-squamous-cell-carcinoma
#18
Qiaozhen Yang, Beiyun Xu, Hongying Sun, Xiaxia Wang, Jie Zhang, Xuedi Yu, Xiaojuan Ma
BACKGROUND: In this study, the molecular mechanisms underlying malignant transformation from oral lichen planus (OLP) to oral squamous cell carcinoma (OSCC) were examined. METHODS: High-throughput sequencing of long noncoding RNAs (lncRNAs) and mRNAs of normal subjects and patients with OLP and OSCC was conducted. RNA-seq reads were mapped, lncRNA and mRNA transcripts were assembled, and expression levels were estimated. The targets of lncRNAs were predicted. Finally, Gene Ontology (GO) and pathway enrichment analyses of differentially expressed genes (DEGs) and lncRNA targets were performed...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28639886/a-competing-endogenous-rna-network-identifies-novel-mrna-mirna-and-lncrna-markers-for-the-prognosis-of-diabetic-pancreatic-cancer
#19
Kanyu Yao, Qi Wang, Jianhua Jia, Haiping Zhao
Pancreatic cancer (PaC) is highly associated with diabetes mellitus (DM). However, the mechanisms are insufficient. The study aimed to uncover the underlying regulatory mechanism on diabetic PaC and find novel biomarkers for the disease prognosis. Two RNA-sequencing (RNA-seq) datasets, GSE74629 and GSE15932, as well as relevant data in TCGA were utilized. After pretreatment, differentially expressed genes (DEGs) or miRNAs (DEMs) or lncRNAs (DELs) between diabetic PaC and non-diabetic PaC patients were identified, and further examined for their correlations with clinical information...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28638111/transcriptome-analyses-of-taste-organoids-reveal-multiple-pathways-involved-in-taste-cell-generation
#20
Wenwen Ren, Eitaro Aihara, Weiwei Lei, Nishi Gheewala, Hironobu Uchiyama, Robert F Margolskee, Ken Iwatsuki, Peihua Jiang
Taste cells undergo constant turnover throughout life; however, the molecular mechanisms governing taste cell generation are not well understood. Using RNA-Seq, we systematically surveyed the transcriptome landscape of taste organoids at different stages of growth. Our data show the staged expression of a variety of genes and identify multiple signaling pathways underlying taste cell differentiation and taste stem/progenitor cell proliferation. For example, transcripts of taste receptors appear only or predominantly in late-stage organoids...
June 21, 2017: Scientific Reports
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