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https://www.readbyqxmd.com/read/29167578/comparative-genomics-of-color-morphs-in-the-coral-montastraea-cavernosa
#1
Jessica K Jarett, Matthew D MacManes, Kathleen M Morrow, M Sabrina Pankey, Michael P Lesser
Montastraea cavernosa is a common coral in the Caribbean basin found in several color morphs. To investigate the causes for brown and orange morphs we undertook a genomics approach on corals collected at the same time and depth in the Bahamas. The coral holobiont includes the host, symbiotic dinoflagellates (Symbiodinium spp.), and a diverse microbiome. While the coral host showed significant genetic differentiation between color morphs both the composition of the Symbiodinium spp. communities and the prokaryotic communities did not...
November 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29161272/global-transcriptome-profile-reveals-abundance-of-dna-damage-response-and-repair-genes-in-individuals-from-high-level-natural-radiation-areas-of-kerala-coast
#2
Vinay Jain, Birajalaxmi Das
The high level natural radiation areas (HLNRA) of Kerala coast in south west India is unique for its wide variation in the background radiation dose (<1.0mGy to 45mGy/year) and vast population size. Several biological studies conducted in this area did not reveal any adverse effects of chronic low dose and low dose rate radiation on human population. In the present study, global transcriptome analysis was carried out in peripheral blood mono-nuclear cells of 36 individuals belonging to different background dose groups [NLNRA, (Group I, ≤1...
2017: PloS One
https://www.readbyqxmd.com/read/29149642/oxidative-stress-cell-cycle-arrest-dna-damage-and-apoptosis-in-adult-zebrafish-danio-rerio-induced-by-tris-1-3-dichloro-2-propyl-phosphate
#3
Hanyan Chen, Pingping Wang, Zhongkun Du, Guowei Wang, Shixiang Gao
Tris(1,3-dichloro-2-propyl)phosphate (TDCPP) is an additive flame retardant of high production volume, and frequently detected in biota and environment. However, knowledge on its potential risk and toxicological mechanism still remains limited. In this study, DNA damage, transcriptomic responses and biochemical changes in the liver of zebrafish (Danio rerio) induced by TDCPP were investigated. Zebrafish was exposed to 45.81μg/L (1/100 (96h-LC50)) and 229.05μg/L (1/20 (96h-LC50)) TDCPP for 7 d. The reactive oxygen species (ROS) and GSH contents, in addition to antioxidant enzyme activities in the liver changed significantly, and the mRNA levels of genes related to oxidative stress were alerted in a dose-dependent and/or sex-dependent manner after exposure to TDCPP...
November 10, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/29147649/knockdown-of-sirt1-suppresses-bladder-cancer-cell-proliferation-and-migration-and-induces-cell-cycle-arrest-and-antioxidant-response-through-foxo3a-mediated-pathways
#4
Qingxuan Hu, Gang Wang, Jianping Peng, Guofeng Qian, Wei Jiang, Conghua Xie, Yu Xiao, Xinghuan Wang
Bladder cancer (BCa) is one of the most common tumors, but its underlying mechanism has not been fully clarified. Our transcriptome analysis suggested a close link of Sirtuins, Peroxisome Proliferator-Activated Receptor (PPAR), cell cycle regulation, reactive oxygen species (ROS) metabolism, and Forkhead Box Class O (FOXO) signaling pathway in BCa. SIRT1 is a key member of Sirtuins, playing important roles in aging and energy metabolism, which has been reported to be involved in various metabolic diseases and tumors...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29138515/targeting-a-non-oncogene-addiction-to-the-atr-chk1-axis-for-the-treatment-of-small-cell-lung-cancer
#5
Fabian Doerr, Julie George, Anna Schmitt, Filippo Beleggia, Tim Rehkämper, Sarah Hermann, Vonn Walter, Jean-Philip Weber, Roman K Thomas, Maike Wittersheim, Reinhard Büttner, Thorsten Persigehl, H Christian Reinhardt
Small cell lung cancer (SCLC) is a difficult to treat subtype of lung cancer. One of the hallmarks of SCLC is its almost uniform chemotherapy sensitivity. However, chemotherapy response is typically transient and patients frequently succumb to SCLC within a year following diagnosis. We performed a transcriptome analysis of the major human lung cancer entities. We show a significant overexpression of genes involved in the DNA damage response, specifically in SCLC. Particularly CHEK1, which encodes for the cell cycle checkpoint kinase CHK1, is significantly overexpressed in SCLC, compared to lung adenocarcinoma...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29138211/transcriptome-sequencing-of-the-naked-mole-rat-heterocephalus-glaber-and-identification-of-hypoxia-tolerance-genes
#6
Bang Xiao, Li Li, Chang Xu, Shanmin Zhao, Lifang Lin, Jishuai Cheng, Wenjing Yang, Wei Cong, Guanghan Kan, Shufang Cui
The naked mole rat (NMR; Heterocephalus glaber) is a small rodent species found in regions of Kenya, Ethiopia and Somalia. It has a high tolerance for hypoxia and is thus, considered one of the most important natural models for studying hypoxia tolerance mechanisms. The various mechanisms underlying the NMR's hypoxia tolerance are beginning to be understood at different levels of organization, and next-generation sequencing methods promise to expand this understanding to the level of gene expression. In this study, we examined the sequence and transcript abundance data of the muscle transcriptome of NMRs exposed to hypoxia using the Illumina HiSeq 2500 system to clarify the possible genomic adaptive responses to the hypoxic underground surroundings...
November 14, 2017: Biology Open
https://www.readbyqxmd.com/read/29137202/differential-gene-expression-analysis-of-bovine-macrophages-after-exposure-to-the-penicillium-mycotoxins-citrinin-and-or-ochratoxin-a
#7
Kristen M Brennan, Se-Young Oh, Alexandros Yiannikouris, Daniel E Graugnard, Niel A Karrow
Mycotoxins produced by fungal species commonly contaminate livestock feedstuffs, jeopardizing their health and diminishing production. Citrinin (CIT) and ochratoxin A (OTA) are mycotoxins produced by Penicillium spp. and commonly co-occur. Both CIT and OTA can modulate immune response by inhibiting cell proliferation and differentiation, altering cell metabolism, and triggering programmed cell death. The objective of this study was to determine the effects of sublethal exposure (i.e., the concentration that inhibited cell proliferation by 25% (IC25)) to CIT, OTA or CIT + OTA on the bovine macrophage transcriptome...
November 13, 2017: Toxins
https://www.readbyqxmd.com/read/29133306/quaking-inhibits-doxorubicin-mediated-cardiotoxicity-through-regulation-of-cardiac-circular-rna-expression
#8
Shashi K Gupta, Ankita Garg, Christian Bär, Shambhabi Chatterjee, Ariana Foinquinos, Hendrik Milting, Katrin Streckfuss-Bömeke, Jan Fiedler, Thomas Thum
Rationale: RNA-binding proteins (RBPs) have been described to be expressed and regulated in various organs including the heart. Little is known about the role of RBPs in heart failure induced by the chemotherapy drug doxorubicin and their interaction with circular RNAs. Objective: We aimed to identify key RBPs involved in doxorubicin-mediated heart failure and to elucidate their function. Methods and Results: Global transcriptome profiling from murine myocardium exposed to doxorubicin identified five differentially expressed RBPs...
November 13, 2017: Circulation Research
https://www.readbyqxmd.com/read/29128925/transcriptome-profile-analysis-reveals-cardiotoxicity-of-maduramicin-in-primary-chicken-myocardial-cells
#9
Xiuge Gao, Lin Peng, Xiangchun Ruan, Xin Chen, Hui Ji, Junxiao Ma, Han Ni, Shanxiang Jiang, Dawei Guo
Maduramicin, an excellent ionophore antibiotic, is extensively used to control coccidiosis in poultry. Numerous maduramicin intoxications have been reported in farm animal and human due to its relatively narrow safety range, with necrosis or degeneration of cardiac and skeletal muscles as hallmark. To date, the mechanisms of maduramicin-induced cardiotoxicity remain unclear in chicken and other animals. Maduramicin (5 µg/mL)-treated primary chicken myocardial cells were used for RNA sequencing (RNA-Seq) and bioinformatics analysis in this study...
November 11, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/29123522/transcriptome-analysis-of-circulating-immune-cell-subsets-highlight-the-role-of-monocytes-in-zaire-ebola-virus-makona-pathogenesis
#10
Andrea R Menicucci, Krista Versteeg, Courtney Woolsey, Chad E Mire, Joan B Geisbert, Robert W Cross, Krystle N Agans, Allen Jankeel, Thomas W Geisbert, Ilhem Messaoudi
Existing models of Ebola virus disease (EVD) suggest antigen-presenting cells are initial targets of Zaire ebolavirus (ZEBOV). In vitro studies have shown that ZEBOV infection of monocytes and macrophages results in the production of inflammatory mediators, which may cause lymphocyte apoptosis. However, these findings have not been corroborated by in vivo studies. In this study, we report the first longitudinal analysis of transcriptional changes in purified monocytes, T-cells, and B-cells isolated from cynomolgus macaques following infection with ZEBOV-Makona...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29116029/zikv-infection-effects-changes-in-gene-splicing-isoform-composition-and-lncrna-expression-in-human-neural-progenitor-cells
#11
Benxia Hu, Yongxia Huo, Liping Yang, Guijun Chen, Minhua Luo, Jinlong Yang, Jumin Zhou
BACKGROUND: The Zika virus (ZIKV) is a mosquito-borne flavivirus that causes microcephaly and Guillain-Barré syndrome in infected individuals. To obtain insights into the mechanism of ZIKV infection and pathogenesis, we analyzed the transcriptome of ZIKV infected human neural progenitor cells (hNPCs) for changes in alternative splicing (AS), gene isoform (ISO) composition and long noncoding RNAs (lncRNAs) expression. METHODS: We analyzed differentially expressed lncRNAs, AS, ISO from RNA-seq data in ZIKV infected hNPCs...
November 7, 2017: Virology Journal
https://www.readbyqxmd.com/read/29113332/lncrnas-downregulated-in-childhood-acute-lymphoblastic-leukemia-modulate-apoptosis-cell-migration-and-dna-damage-response
#12
Romain Gioia, Simon Drouin, Manon Ouimet, Maxime Caron, Pascal St-Onge, Chantal Richer, Daniel Sinnett
Childhood acute lymphoblastic leukemia (cALL) accounts for 25% of pediatric cancers and is one of the leading causes of disease-related death in children. Although long non-coding RNAs (lncRNAs) have been implicated in cALL etiology, progression, and treatment response, little is known about their exact functional role. We had previously sequenced the whole transcriptome of 56 cALL patients and identified lncRNA transcripts specifically silenced in tumoral cells. Here we investigated the impact of restoring the expression of three of these (RP11-624C23...
October 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/29109913/comparative-analysis-of-the-microrna-transcriptome-between-yak-and-cattle-provides-insight-into-high-altitude-adaptation
#13
Jiuqiang Guan, Keren Long, Jideng Ma, Jinwei Zhang, Dafang He, Long Jin, Qianzi Tang, Anan Jiang, Xun Wang, Yaodong Hu, Shilin Tian, Zhi Jiang, Mingzhou Li, Xiaolin Luo
Extensive and in-depth investigations of high-altitude adaptation have been carried out at the level of morphology, anatomy, physiology and genomics, but few investigations focused on the roles of microRNA (miRNA) in high-altitude adaptation. We examined the differences in the miRNA transcriptomes of two representative hypoxia-sensitive tissues (heart and lung) between yak and cattle, two closely related species that live in high and low altitudes, respectively. In this study, we identified a total of 808 mature miRNAs, which corresponded to 715 pre-miRNAs in the two species...
2017: PeerJ
https://www.readbyqxmd.com/read/29109696/low-dose-alkylphenol-exposure-promotes-mammary-epithelium-alterations-and-transgenerational-developmental-defects-but-does-not-enhance-tumorigenic-behavior-of-breast-cancer-cells
#14
Clémence Chamard-Jovenin, Charlène Thiebaut, Amand Chesnel, Emmanuel Bresso, Chloé Morel, Malika Smail-Tabbone, Marie-Dominique Devignes, Taha Boukhobza, Hélène Dumond
Fetal and neonatal exposure to long-chain alkylphenols has been suspected to promote breast developmental disorders and consequently to increase breast cancer risk. However, disease predisposition from developmental exposures remains unclear. In this work, human MCF-10A mammary epithelial cells were exposed in vitro to a low dose of a realistic (4-nonylphenol + 4-tert-octylphenol) mixture. Transcriptome and cell-phenotype analyses combined to functional and signaling network modeling indicated that long-chain alkylphenols triggered enhanced proliferation, migration ability, and apoptosis resistance and shed light on the underlying molecular mechanisms which involved the human estrogen receptor alpha 36 (ERα36) variant...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29109423/transcriptomic-profiling-in-human-mesangial-cells-using-patient-derived-lupus-autoantibodies-identified-mir-10a-as-a-potential-regulator-of-il8
#15
Pattarin Tangtanatakul, Boonyakiat Thammasate, Alain Jacquet, Rangsima Reantragoon, Trairak Pisitkun, Yingyos Avihingsanon, Asada Leelahavanichkul, Nattiya Hirankarn
Autoantibody-mediated inflammation directed at resident kidney cells mediates lupus nephritis (LN) pathogenesis. This study investigated the role of miRNA in human mesangial cells (HMCs) stimulated with auto anti-dsDNA immunoglobulin (Ig)G antibodies. HMCs were treated with antibodies purified from active LN patients or non-specific IgG controls in the presence of normal serum. Aberrant miRNA was screened using high throughput sequencing. Anti-dsDNA IgG up-regulated 103 miRNAs and down-regulated 30 miRNAs. The miRNAs regulated genes in the cell cycle, catabolic processes, regulation of transcription and apoptosis signalling...
November 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29108266/the-systemic-tumor-response-to-rnase-a-treatment-affects-the-expression-of-genes-involved-in-maintaining-cell-malignancy
#16
Nadezhda Mironova, Olga Patutina, Evgenyi Brenner, Alexander Kurilshikov, Valentin Vlassov, Marina Zenkova
Recently, pancreatic RNase A was shown to inhibit tumor and metastasis growth that accompanied by global alteration of miRNA profiles in the blood and tumor tissue (Mironova et al., 2013). Here, we performed a whole transcriptome analysis of murine Lewis lung carcinoma (LLC) after treatment of tumor-bearing mice with RNase A. We identified 966 differentially expressed transcripts in LLC tumors, of which 322 were upregulated and 644 were downregulated after RNase A treatment. Many of these genes are involved in signaling pathways that regulate energy metabolism, cell-growth promoting and transforming activity, modulation of the cancer microenvironment and extracellular matrix components, and cellular proliferation and differentiation...
October 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29108107/smart-combinations-of-bioactive-compounds-in-fruits-and-vegetables-may-guide-new-strategies-for-personalized-prevention-of-chronic-diseases
#17
REVIEW
Simone G J van Breda, Theo M C M de Kok
There is ample scientific evidence suggesting that the health benefits of eating the right amounts of a variety of vegetables and fruit are the consequence of the combined action of different phytochemicals. The present review provides an update of the scientific literature on additive and synergistic effects of mixtures of phytochemicals. Most research has been carried out in in vitro systems in which synergistic or additive effects have been established on the level of cell proliferation, apoptosis, antioxidant capacity, and tumor incidence, accompanied by changes in gene and protein expression in relevant pathways underlying molecular mechanisms of disease prevention...
November 6, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29107288/identification-of-islet-enriched-long-non-coding-rnas-contributing-to-%C3%AE-cell-failure-in-type-2-diabetes
#18
Anna Motterle, Sonia Gattesco, Marie-Line Peyot, Jonathan Lou S Esguerra, Ana Gomez-Ruiz, D Ross Laybutt, Patrick Gilon, Frédéric Burdet, Mark Ibberson, Lena Eliasson, Marc Prentki, Romano Regazzi
OBJECTIVE: Non-coding RNAs constitute a major fraction of the β-cell transcriptome. While the involvement of microRNAs is well established, the contribution of long non-coding RNAs (lncRNAs) in the regulation of β-cell functions and in diabetes development remains poorly understood. The aim of this study was to identify novel islet lncRNAs differently expressed in type 2 diabetes models and to investigate their role in β-cell failure and in the development of the disease. METHODS: Novel transcripts dysregulated in the islets of diet-induced obese mice were identified by high throughput RNA-sequencing coupled with de novo annotation...
November 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/29101036/profiling-neuron-autonomous-lncrna-changes-upon-ischemia-reperfusion-injury
#19
Li Haiying, Wu Youjia, Suo Guihai, Shen Feifei, Zhen Yuqin, Xia Chen, Lv Haitao
Extensive changes of neuronal transcriptome occur post ischemic stroke and during the following reperfusion. Although numerous studies focused on transcriptome changes of mRNAs associated with ischemic stroke, little is known about whether and how long non-coding RNAs (lncRNAs), which play critical roles in cellular homeostasis, are involved in this process. In this study, we performed high throughput screening to analyze expression changes of lncRNAs in primarily cultured hippocampal neurons under an oxygen-glucose deprivation/reperfusion (OGD/R) condition at 0h, 6 h, 12 h, and 18 h, respectively...
October 31, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29100399/oxidative-stress-induced-jnk-ap-1-signaling-is-a-major-pathway-involved-in-selective-apoptosis-of-myelodysplastic-syndrome-cells-by-withaferin-a
#20
Karine Z Oben, Sara S Alhakeem, Mary K McKenna, Jason A Brandon, Rajeswaran Mani, Sunil K Noothi, Liu Jinpeng, Shailaja Akunuru, Sanjit K Dhar, Inder P Singh, Ying Liang, Chi Wang, Ahmed Abdel-Latif, Harold F Stills, Daret K St Clair, Hartmut Geiger, Natarajan Muthusamy, Kaoru Tohyama, Ramesh C Gupta, Subbarao Bondada
Myelodysplastic syndromes (MDS) are a diverse group of malignant clonal hematopoietic stem cell disorders characterized by ineffective hematopoiesis, dysplastic cell morphology in one or more hematopoietic lineages, and a risk of progression to acute myeloid leukemia (AML). Approximately 50% of MDS patients respond to current FDA-approved drug therapies but a majority of responders relapse within 2-3 years. There is therefore a compelling need to identify potential new therapies for MDS treatment. We utilized the MDS-L cell line to investigate the anticancer potential and mechanisms of action of a plant-derived compound, Withaferin A (WFA), in MDS...
September 29, 2017: Oncotarget
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