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https://www.readbyqxmd.com/read/28443474/atp-citrate-lyase-is-increased-in-human-breast-cancer-depletion-of-which-promotes-apoptosis
#1
Diyu Wang, Lei Yin, Jinrong Wei, Zhixue Yang, Guoqin Jiang
Breast cancer is a malignant tumor that is harmful to women's health around the world. Investigating the biological mechanism is, therefore, of pivotal importance to improve patients' prognoses. Compared to non-neoplastic tissues, enhanced glucose and lipid metabolism is one of the most common properties of malignant breast cancer. Adenosine triphosphate (ATP) citrate lyase is a key enzyme linking aerobic glycolysis and fatty acid synthesis and is of high biological and prognostic significance in breast cancer...
April 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28443469/low-nkd1-expression-predicts-adverse-prognosis-in-cytogenetically-normal-acute-myeloid-leukemia
#2
Jing-Dong Zhou, Dong-Ming Yao, Li Han, Gao-Fei Xiao, Hong Guo, Ting-Juan Zhang, Xi-Xi Li, Qian Yuan, Lei Yang, Jiang Lin, Jun Qian
Dysregulation of NKD1 has been identified in several solid tumors. However, the status of NKD1 expression and its clinical implication in acute myeloid leukemia remain largely elusive. NKD1 transcript level in bone marrow mononuclear cells was detected by real-time quantitative polymerase chain reaction in 126 de novo acute myeloid leukemia patients and 30 controls. Clinical significance of NKD1 expression was obtained by the comparison between the patients with low and high NKD1 expression. NKD1 messenger RNA level was significantly decreased in acute myeloid leukemia patients compared with controls ( p = 0...
April 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28442604/hepatitis-c-virus-indirectly-disrupts-dna-damage-induced-p53-responses-by-activating-protein-kinase-r
#3
Jonathan K Mitchell, Bentley R Midkiff, Benjamin Israelow, Matthew J Evans, Robert E Lanford, Christopher M Walker, Stanley M Lemon, David R McGivern
Many DNA tumor viruses promote cellular transformation by inactivating the critically important tumor suppressor protein p53. In contrast, it is not known whether p53 function is disrupted by hepatitis C virus (HCV), a unique, oncogenic RNA virus that is the leading infectious cause of liver cancer in many regions of the world. Here we show that HCV-permissive, liver-derived HepG2 cells engineered to constitutively express microRNA-122 (HepG2/miR-122 cells) have normal p53-mediated responses to DNA damage and that HCV replication in these cells potently suppresses p53 responses to etoposide, an inducer of DNA damage, or nutlin-3, an inhibitor of p53 degradation pathways...
April 25, 2017: MBio
https://www.readbyqxmd.com/read/28441781/dengue-virus-non-structural-protein-5
#4
REVIEW
Abbas El Sahili, Julien Lescar
The World Health Organization estimates that the yearly number of dengue cases averages 390 million. This mosquito-borne virus disease is endemic in over 100 countries and will probably continue spreading, given the observed trend in global warming. So far, there is no antiviral drug available against dengue, but a vaccine has been recently marketed. Dengue virus also serves as a prototype for the study of other pathogenic flaviviruses that are emerging, like West Nile virus and Zika virus. Upon viral entry into the host cell and fusion of the viral lipid membrane with the endosomal membrane, the viral RNA is released and expressed as a polyprotein, that is then matured into three structural and seven non-structural (NS) proteins...
April 24, 2017: Viruses
https://www.readbyqxmd.com/read/28441650/microrna-1185-induces-endothelial-cell-apoptosis-by-targeting-uvrag-and-krit1
#5
Haoyuan Deng, Xia Chu, Zhenfeng Song, Xinrui Deng, Huan Xu, Yaxin Ye, Songtao Li, Qiao Zhang, Changhao Sun, Ying Li
BACKGROUND/AIMS: Atherosclerosis is a multifactorial chronic disease and is the main cause of death and impairment in the world. Endothelial injury and apoptosis play a crucial role in the onset and development of atherosclerosis. MicroRNAs (miRNAs) have been proven to be involved in the pathogenesis of atherosclerosis. However, studies of the functional role of apoptosis-related miRNAs in the endothelium during atherogenesis are limited. METHODS: Cell injury and apoptosis were measured in five types of cells transfected with miR-1185 or co-transfected with miR-1185 and its inhibitor...
April 20, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28439039/invs-coordinates-expression-of-prgh-and-fimz-and-is-required-for-invasion-of-epithelial-cells-by-salmonella-enterica-serovar-typhimurium
#6
Lu Wang, Xia Cai, Shuyan Wu, Rajdeep Bomjan, Ernesto S Nakayasu, Kristian Händler, Jay C D Hinton, Daoguo Zhou
Deep sequencing has revolutionized our understanding of the bacterial RNA world, and has facilitated the identification of 280 sRNAs in Salmonella Despite suspicions that sRNAs may play important roles in Salmonella pathogenesis, the functions of most sRNAs remain unknown. To advance our understanding of RNA biology in Salmonella virulence, we searched for sRNAs required for bacterial invasion into non-phagocytic cells. After screening 75 sRNAs, we discovered that ablation of InvS caused a significant decrease of Salmonella invasion into epithelial cells...
April 24, 2017: Journal of Bacteriology
https://www.readbyqxmd.com/read/28439019/type-i-interferons-induced-by-endogenous-or-exogenous-viral-infections-promote-metastasis-and-relapse-of-leishmaniasis
#7
Matteo Rossi, Patrik Castiglioni, Mary-Anne Hartley, Remzi Onur Eren, Florence Prével, Chantal Desponds, Daniel T Utzschneider, Dietmar Zehn, Maria G Cusi, F Matthew Kuhlmann, Stephen M Beverley, Catherine Ronet, Nicolas Fasel
The presence of the endogenous Leishmania RNA virus 1 (LRV1) replicating stably within some parasite species has been associated with the development of more severe forms of leishmaniasis and relapses after drug treatment in humans. Here, we show that the disease-exacerbatory role of LRV1 relies on type I IFN (type I IFNs) production by macrophages and signaling in vivo. Moreover, infecting mice with the LRV1-cured Leishmania guyanensis (LgyLRV1(-) ) strain of parasites followed by type I IFN treatment increased lesion size and parasite burden, quantitatively reproducing the LRV1-bearing (LgyLRV1(+) ) infection phenotype...
April 24, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28436444/transcriptome-profiling-of-sulfate-deprivation-responses-in-two-agarophytes-gracilaria-changii-and-gracilaria-salicornia-rhodophyta
#8
Wei-Kang Lee, Parameswari Namasivayam, Janna Ong Abdullah, Chai-Ling Ho
Seaweeds survive in marine waters with high sulfate concentration compared to those living at freshwater habitats. The cell wall polymer of Gracilaria spp. which supplies more than 50% of the world agar is heavily sulfated. Since sulfation reduces the agar quality, it is interesting to investigate the effects of sulfate deprivation on the sulfate contents of seaweed and agar, as well as the metabolic pathways of these seaweeds. In this study, two agarophytes G. changii and G. salicornia were treated under sulfate deprivation for 5 days...
April 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28434406/efavirenz-based-simplification-after-successful-early-lopinavir-boosted-ritonavir-based-therapy-in-hiv-infected-children-in-burkina-faso-and-c%C3%A3-te-d-ivoire-the-monod-anrs-12206-non-inferiority-randomised-trial
#9
Désiré Lucien Dahourou, Madeleine Amorissani-Folquet, Karen Malateste, Clarisse Amani-Bosse, Malik Coulibaly, Carole Seguin-Devaux, Thomas Toni, Rasmata Ouédraogo, Stéphane Blanche, Caroline Yonaba, François Eboua, Philippe Lepage, Divine Avit, Sylvie Ouédraogo, Philippe Van de Perre, Sylvie N'Gbeche, Angèle Kalmogho, Roger Salamon, Nicolas Meda, Marguerite Timité-Konan, Valériane Leroy
BACKGROUND: The 2016 World Health Organization guidelines recommend all children <3 years start antiretroviral therapy (ART) on protease inhibitor-based regimens. But lopinavir/ritonavir (LPV/r) syrup has many challenges in low-income countries, including limited availability, requires refrigeration, interactions with anti-tuberculous drugs, twice-daily dosing, poor palatability in young children, and higher cost than non-nucleoside reverse transcriptase inhibitor (NNRTI) drugs. Successfully initiating LPV/r-based ART in HIV-infected children aged <2 years raises operational challenges that could be simplified by switching to a protease inhibitor-sparing therapy based on efavirenz (EFV), although, to date, EFV is not recommended in children <3 years...
April 24, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28432500/walking-over-4-gya-chemical-evolution-from-photochemistry-to-mineral-and-organic-chemistries-leading-to-an-rna-world
#10
REVIEW
Kunio Kawamura, Marie-Christine Maurel
Here we overview the chemical evolution of RNA molecules from inorganic material through mineral-mediated RNA formation compatible with the plausible early Earth environments. Pathways from the gas-phase reaction to the formation of nucleotides, activation and oligomerization of nucleotides, seem to be compatible with specific environments. However, how these steps interacted is not clear since the chemical conditions are frequently different and can be incompatible between them; thus the products would have migrated from one place to another, suitable for further chemical evolution...
April 21, 2017: Origins of Life and Evolution of the Biosphere
https://www.readbyqxmd.com/read/28431273/chromosomal-instability-in-gastric-cancer-biology
#11
REVIEW
Saffiyeh Saboor Maleki, Christoph Röcken
Gastric cancer (GC) is the fifth most common cancer in the world and accounts for 7% of the total cancer incidence. The prognosis of GC is dismal in Western countries due to late diagnosis: approximately 70% of the patients die within 5 years following initial diagnosis. Recently, integrative genomic analyses led to the proposal of a molecular classification of GC into four subtypes, i.e.,microsatellite-instable, Epstein-Barr virus-positive, chromosomal-instable (CIN), and genomically stable GCs. Molecular classification of GC advances our knowledge of the biology of GC and may have implications for diagnostics and patient treatment...
April 18, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28429752/lncrna-hit-promotes-cell-proliferation-of-non-small-cell-lung-cancer-by-association-with-e2f1
#12
L Yu, F Fang, S Lu, X Li, Y Yang, Z Wang
Lung cancer is the leading cause of cancer-related death around the world. Long noncoding RNA (lncRNA) has pivotal roles in cancer occurrence and development. However, only a few lncRNAs have been functionally characterized. In the present study, we investigated the effects of lncRNA-HIT (HOXA transcript induced by TGFβ) expression on non-small cell lung cancer (NSCLC) cell phenotype with the gain-of-function and loss-of-function assays. We found that ectopic expression or knockdown of lncRNA-HIT markedly increased or decreased NSCLC cell proliferation, respectively...
April 21, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28421280/systems-biology-of-seeds-deciphering-the-molecular-mechanisms-of-seed-storage-dormancy-and-onset-of-germination
#13
EDITORIAL
Nese Sreenivasulu
Seeds are heterogeneous storage reserves with wide array of storage compounds that include various soluble carbohydrates, starch polymer, storage proteins and lipids. These stored reserves comprise 70% of the world's caloric intake in the form of food and animal feed produced through sustainable agriculture, which contributes to food and nutritional security. Seed systems biology remains an enigmatic subject in understanding seed storage processes, maturation and pre-germinative metabolism. The reviews and research articles covered in this special issue of Plant Cell Reports highlight recent advances made in the area of seed biology that cover various systems biology applications such as gene regulatory networks, metabolomics, epigenetics and the role of micro-RNA in seed development...
April 18, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28421048/functional-information-stored-in-the-conserved-structural-rna-domains-of-flavivirus-genomes
#14
REVIEW
Alba Fernández-Sanlés, Pablo Ríos-Marco, Cristina Romero-López, Alfredo Berzal-Herranz
The genus Flavivirus comprises a large number of small, positive-sense single-stranded, RNA viruses able to replicate in the cytoplasm of certain arthropod and/or vertebrate host cells. The genus, which has some 70 member species, includes a number of emerging and re-emerging pathogens responsible for outbreaks of human disease around the world, such as the West Nile, dengue, Zika, yellow fever, Japanese encephalitis, St. Louis encephalitis, and tick-borne encephalitis viruses. Like other RNA viruses, flaviviruses have a compact RNA genome that efficiently stores all the information required for the completion of the infectious cycle...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28418872/overexpression-of-fli-1-in-astrocytoma-is-associated-with-poor-prognosis
#15
Hung-Pei Tsai, Tai-Hsin Tsai, Ya-Ju Hsieh, Yi-Ting Chen, Chih-Ling Lee, Yi-Cheng Tsai, Ting-Chang She, Chih-Lung Lin, Chee-Yin Chai, Aij-Lie Kwan
BACKGROUND: Astrocytoma, a common and highly malignant type of brain tumor, is associated with poor overall survival despite advances in surgical treatment, radiotherapy, and chemotherapy. The nuclear transcription factor Fli-1 has been shown to increase cellular proliferation and tumorigenesis in many types of cancer; however, previous reports have not described a correlation between clinical outcomes and Fli-1 in astrocytoma patients. The present study aimed to elucidate the clinical role of Fli-1 in astrocytoma...
March 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28413471/influence-of-camel-milk-on-the-hepatitis-c-virus-burden-of-infected-patients
#16
Esmail Mohamad El-Fakharany, Nawal Abd El-Baky, Mustafa Hassan Linjawi, Abdullah Abdelhafiz Aljaddawi, Tahya Hussein Saleem, Ahmed Yassine Nassar, Ashraf Osman, Elrashdy Moustafa Redwan
Hepatitis C virus (HCV) infection represents a world health problem and no protective vaccine or effective drug currently exists. For economic reasons, many patients use traditional medicines to control the infection. In Egypt, camel milk is one of the traditional medicines widely consumed by patients infected with HCV. The present study aimed to evaluate the efficacy of camel milk in the treatment of patients infected with HCV. Whole camel milk from a local farm was administered to patients for 4 months (250 ml/day/patient)...
April 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28402184/root-knot-nematode-parasitism-suppresses-host-rna-silencing
#17
E Walsh, J M Elmore, C G Taylor
Root-knot nematodes damage crops around the world by developing complex feeding sites from normal root cells of their hosts. The ability to initiate and maintain this feeding site (composed of individual "giant cells") is essential to their parasitism process. RNA silencing pathways in plants serve a diverse set of functions, from directing growth and development to defending against invading pathogens. Influencing a host's RNA silencing pathways as a pathogenicity strategy has been well-documented for viral plant pathogens, but recently, it has become clear that silencing pathways also play an important role in other plant pathosystems...
April 12, 2017: Molecular Plant-microbe Interactions: MPMI
https://www.readbyqxmd.com/read/28400392/identification-of-runx1-as-a-mediator-of-aberrant-retinal-angiogenesis
#18
Jonathan D Lam, Daniel J Oh, Lindsay L Wong, Dhanesh Amarnani, Cindy Park-Windhol, Angie V Sanchez, Jonathan Cardona-Velez, Declan McGuone, Anat O Stemmer-Rachamimov, Dean Eliott, Diane R Bielenberg, Tave van Zyl, Lishuang Shen, Xiaowu Gai, Patricia A D'Amore, Leo A Kim, Joseph F Arboleda-Velasquez
Proliferative diabetic retinopathy (PDR) is a common cause of blindness in the developed world's working adult population, and affects those with type 1 and type 2 diabetes mellitus. We identified Runt-related transcription factor 1 (RUNX1) as a gene upregulated in CD31+ vascular endothelial cells obtained from human PDR fibrovascular membranes (FVM) via transcriptomic analysis. In vitro studies using human retinal microvascular endothelial cells (HRMECs) showed increased RUNX1 RNA and protein expression in response to high glucose whereas RUNX1 inhibition reduced HRMEC migration, proliferation, and tube formation...
April 11, 2017: Diabetes
https://www.readbyqxmd.com/read/28399173/mir-150-regulates-human-keratinocyte-proliferation-in-hypoxic-conditions-through-targeting-hif-1%C3%AE-and-vegfa-implications-for-psoriasis-treatment
#19
Yongjian Li, Juan Su, Fangfang Li, Xiang Chen, Guiying Zhang
Psoriasis is a common and chronic autoimmune skin disease which affects 2 to 3% of the world population. Abnormal proliferation of human keratinocytes is an important feature of psoriasis, along with local hypoxia and vascular abnormal growth. To leverage recent molecular findings into the personalized treatment of psoriasis, we need a strategy that integrates clinical stratification with molecular phenotyping. MicroRNAs (miRNAs) are a large family of small non-coding RNA which regulates diverse biological process, including cell proliferation, by modulating gene expression at the posttranscriptional level...
2017: PloS One
https://www.readbyqxmd.com/read/28399169/a-photoperiod-responsive-protein-compendium-and-conceptual-proteome-roadmap-outline-in-maize-grown-in-growth-chambers-with-controlled-conditions
#20
You-Zhi Li, Xian-Wei Fan, Qiang Chen, Hao Zhong
Maize (Zea mays L.) is one of the major staple food crops of the world. However, high photoperiod sensitivity, especially for tropical germplasms, impedes attempts to improve maize agronomical traits by integration of tropical and temperate maize germplasms. Physiological and phenotypic responses of maize to photoperiod have widely been investigated based on multi-site field observations; however, proteome-based responsive mechanisms under controlled photoperiod regimes, nutrient and moisture soils are not yet well understood...
2017: PloS One
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