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https://www.readbyqxmd.com/read/28441762/replication-and-oncolytic-activity-of-an-avian-orthoreovirus-in-human-hepatocellular-carcinoma-cells
#1
Robert A Kozak, Larissa Hattin, Mia J Biondi, Juan C Corredor, Scott Walsh, Max Xue-Zhong, Justin Manuel, Ian D McGilvray, Jason Morgenstern, Evan Lusty, Vera Cherepanov, Betty-Anne McBey, David Leishman, Jordan J Feld, Byram Bridle, Éva Nagy
Oncolytic viruses are cancer therapeutics with promising outcomes in pre-clinical and clinical settings. Animal viruses have the possibility to avoid pre-existing immunity in humans, while being safe and immunostimulatory. We isolated an avian orthoreovirus (ARV-PB1), and tested it against a panel of hepatocellular carcinoma cells. We found that ARV-PB1 replicated well and induced strong cytopathic effects. It was determined that one mechanism of cell death was through syncytia formation, resulting in apoptosis and induction of interferon stimulated genes (ISGs)...
April 24, 2017: Viruses
https://www.readbyqxmd.com/read/28439798/the-changing-landscape-of-genetic-testing-for-inherited-breast-cancer-predisposition
#2
REVIEW
Anosheh Afghahi, Allison W Kurian
The advent of multiple-gene germline panel testing has led to significant advances in hereditary breast and ovarian cancer risk assessment. These include guideline-specific cancer risk management recommendations for patients and their families, such as screening with breast magnetic resonance imaging and risk-reducing surgeries, which have the potential to reduce substantially the morbidity and mortality associated with a hereditary cancer predisposition. However, controversy remains about the clinical validity and actionability of genetic testing in a broader patient population...
May 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/28439221/congenital-hyperinsulinism-caused-by-a-de-novo-mutation-in-the-abcc8-gene-a-case-report
#3
Zsuzsanna Molnár, Lfdia Balogh, János Kappelmayer, László Madar, Éva Gombos, István Balogh
Congenital hyperinsulinism (CHI) is a rare genetic disorder characterized by inappropriate insulin secretion and severe hypoglycaemia. There are two histological subtypes: diffuse and focal form. Diffuse form is most common in autosomal recessive mutations in ABCC8/KCNJ11 gene, while focal CHI is caused a paternally inherited mutation and a somatic maternal allele loss. Here we report a case of a term male infant presented with severe hyperinsulinaemic hypoglycaemia. Gene panel testing was performed to give rapid genetic diagnosis...
March 2017: EJIFCC
https://www.readbyqxmd.com/read/28436997/truncating-mutations-on-myofibrillar-myopathies-causing-genes-as-prevalent-molecular-explanations-on-patients-with-dilated-cardiomyopathy
#4
Alexandre Janin, Karine N'Guyen, Gilbert Habib, Claire Dauphin, Valérie Chanavat, Patrice Bouvagnet, Romain Eschalier, Streichenberger Nathalie, Philippe Chevalier, Gilles Millat
Dilated Cardiomyopathy (DCM) is one of the leading causes of heart failure with high morbidity and mortality. More than 40 genes have been reported to cause DCM. To provide new insights into the pathophysiology of dilated cardiomyopathy, a NGS workflow based on a panel of 48 cardiomyopathies-causing genes was used to analyze a cohort of 222 DCM patients. Truncating variants were detected on 63 unrelated DCM cases (28.4%). Most of them were identified, as expected, on TTN (29 DCM probands), but truncating variants were also identified on myofibrillar myopathies causing genes in 17 DCM patients (7...
April 24, 2017: Clinical Genetics
https://www.readbyqxmd.com/read/28436164/synthesis-and-sar-study-of-novel-anticancer-protoflavone-derivatives-investigation-of-cytotoxicity-and-interaction-with-the-abcb1-and-abcg2-multidrug-efflux-transporters
#5
Balázs Dankó, Szilárd Tóth, Ana Martins, Vágvölgyi Máté, Norbert Kúsz, Joseph Molnár, Fang-Rong Chang, Yang-Chang Wu, Gergely Szakács, Attila Hunyadi
There is a constant need for new therapies against multidrug resistant (MDR) cancer. Natural compounds represent a promising class of novel anticancer agents. Recently, we have shown that protoflavones display activity in multidrug resistant cancer cell lines overexpressing the drug efflux pump P-glycoprotein. In the present study, 52 protoflavones, including 22 new derivatives were synthesized and tested against a panel of sensitive parental cells and their MDR derivatives obtained by transfection with the human ABCB1 or ABCG2 genes, or by adaptation to chemotherapeutics...
April 23, 2017: ChemMedChem
https://www.readbyqxmd.com/read/28436093/genome-wide-association-studies-to-identify-rice-salt-tolerance-markers
#6
Juan Patishtan, Tom N Hartley, Raquel Fonseca de Carvalho, Frans Jm Maathuis
Salinity is an ever increasing menace that affects agriculture world-wide. Crops such as rice are salt sensitive but its degree of susceptibility varies widely between cultivars pointing to extensive genetic diversity which can be exploited to identify genes and proteins that are relevant in the response of rice to salt stress. We used a diversity panel of 306 rice accessions and collected phenotypic data after short (6 h), medium (7d) and long (30d) salinity treatment (50 mM NaCl). A genome wide association study (GWAS) was subsequently performed which identified around 1200 candidate genes from many functional categories but this was treatment period dependent...
April 23, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28435893/opacification-domain-of-serum-opacity-factor-inhibits-beta-hemolysis-and-contributes-to-virulence-of-streptococcus-pyogenes
#7
Luchang Zhu, Randall J Olsen, James M Musser
Serum opacity factor (SOF) is a cell surface virulence factor made by the human pathogen Streptococcus pyogenes. We found that S. pyogenes strains with naturally occurring truncation mutations in the sof gene have markedly enhanced beta-hemolysis. Moreover, deletion of the sof gene in a SOF-positive parental strain resulted in significantly increased beta-hemolysis. Together, these observations suggest that SOF is an inhibitor of beta-hemolysis. SOF has two major functional domains, including an opacification domain and a fibronectin-binding domain...
March 2017: MSphere
https://www.readbyqxmd.com/read/28433777/design-and-expeditious-synthesis-of-organosilanes-as-potent-antivirals-targeting-multidrug-resistant-influenza-a-viruses
#8
Yanmei Hu, Yuanxiang Wang, Fang Li, Chunlong Ma, Jun Wang
The efficacy of current influenza vaccines and small molecule antiviral drugs is curtailed by the emerging of multidrug-resistant influenza viruses. As resistance to the only FDA-approved oral influenza antiviral, oseltamivir (Tamiflu), continues to rise, there is a clear need to develop the next-generation of antiviral drugs. Since more than 95% of current circulating influenza A viruses carry the S31N mutation in their M2 genes, the AM2-S31N mutant proton channel represents an attractive target for the development of broad-spectrum antivirals...
April 19, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28433422/postnatal-choline-supplementation-selectively-attenuates-hippocampal-microrna-alterations-associated-with-developmental-alcohol-exposure
#9
Sridevi Balaraman, Nirelia M Idrus, Rajesh C Miranda, Jennifer D Thomas
Prenatal alcohol exposure can result in a range of physical, neuropathological, and behavioral alterations, collectively termed fetal alcohol spectrum disorders (FASD). We have shown that supplementation with the nutrient choline reduces the severity of developmental alcohol-associated deficits in hippocampal-dependent behaviors and normalizes some aspects of hippocampal cholinergic development and DNA methylation patterns. Alcohol's developmental effects may also be mediated, in part, by altering microRNAs (miRNAs) that serve as negative regulators of gene translation...
January 3, 2017: Alcohol
https://www.readbyqxmd.com/read/28431986/ninj2-a-novel-regulator-of-endothelial-inflammation-and-activation
#10
Jingjing Wang, Jingjing Fa, Pengyun Wang, Xinzhen Jia, Huixin Peng, Jing Chen, Yifan Wang, Chenhui Wang, Qiuyun Chen, Xin Tu, Qing K Wang, Chengqi Xu
Previous genetic studies suggested that variants in NINJ2 (encode ninjurin2) confer risk to ischemic stroke or large artery atherosclerotic stroke. However, the underlying mechanisms of NINJ2 in ischemic stroke or atherosclerosis are still unknown. In this study, we hypothesized that NINJ2 may play a role in endothelial inflammation and activation, and regulate the process of atherosclerosis. Here, we demonstrated that NINJ2 can regulate the expression of a panel of genes that are associated with inflammation and atherosclerosis (e...
April 18, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28431466/next-generation-sequencing-reveals-one-novel-missense-mutation-in-col1a2-gene-in-an-iranian-family-with-osteogenesis-imperfecta
#11
Farah Talebi, Farideh Ghanbari Mardasi, Mohammadi Asl Javad, Bavarsad Amir Hooshang, Salehi Kambo Masoumeh
BAckground: Osteogenesis imperfecta (OI) is a clinically and genetically heterogeneous disorder characterized by bone loss and bone fragility. The aim of this study was to investigate the variants of three genes involved in the pathogenesis of OI. Methods: Molecular genetic analyses were performed for COL1A1, COL1A2, and CRTAP genes in an Iranian family with OI. The DNA samples were analyzed by next-generation sequencing (NGS) gene panel and Sanger sequencing. Results: Five different variants were identified in COL1A1 and COL1A2, including two variants in COL1A1 and three variants in COL1A2...
April 22, 2017: Iranian Biomedical Journal
https://www.readbyqxmd.com/read/28431252/engineered-regulatory-systems-modulate-gene-expression-of-human-commensals-in-the-gut
#12
Bentley Lim, Michael Zimmermann, Natasha A Barry, Andrew L Goodman
The gut microbiota is implicated in numerous aspects of health and disease, but dissecting these connections is challenging because genetic tools for gut anaerobes are limited. Inducible promoters are particularly valuable tools because these platforms allow real-time analysis of the contribution of microbiome gene products to community assembly, host physiology, and disease. We developed a panel of tunable expression platforms for the prominent genus Bacteroides in which gene expression is controlled by a synthetic inducer...
April 20, 2017: Cell
https://www.readbyqxmd.com/read/28430856/a-comprehensive-analysis-of-rare-genetic-variation-in-amyotrophic-lateral-sclerosis-in-the-uk
#13
Sarah Morgan, Aleksey Shatunov, William Sproviero, Ashley R Jones, Maryam Shoai, Deborah Hughes, Ahmad Al Khleifat, Andrea Malaspina, Karen E Morrison, Pamela J Shaw, Christopher E Shaw, Katie Sidle, Richard W Orrell, Pietro Fratta, John Hardy, Alan Pittman, Ammar Al-Chalabi
Amyotrophic lateral sclerosis is a progressive neurodegenerative disease of motor neurons. About 25 genes have been verified as relevant to the disease process, with rare and common variation implicated. We used next generation sequencing and repeat sizing to comprehensively assay genetic variation in a panel of known amyotrophic lateral sclerosis genes in 1126 patient samples and 613 controls. About 10% of patients were predicted to carry a pathological expansion of the C9orf72 gene. We found an increased burden of rare variants in patients within the untranslated regions of known disease-causing genes, driven by SOD1, TARDBP, FUS, VCP, OPTN and UBQLN2...
April 18, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28430642/immunocompetent-mouse-allograft-models-for-development-of-therapies-to-target-breast-cancer-metastasis
#14
Yuan Yang, Howard H Yang, Ying Hu, Peter H Watson, Huaitian Liu, Thomas R Geiger, Miriam R Anver, Diana C Haines, Philip Martin, Jeffrey E Green, Maxwell P Lee, Kent W Hunter, Lalage M Wakefield
Effective drug development to combat metastatic disease in breast cancer would be aided by the availability of well-characterized preclinical animal models that (a) metastasize with high efficiency, (b) metastasize in a reasonable time-frame, (c) have an intact immune system, and (d) capture some of the heterogeneity of the human disease. To address these issues, we have assembled a panel of twelve mouse mammary cancer cell lines that can metastasize efficiently on implantation into syngeneic immunocompetent hosts...
February 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28428361/single-tube-dodecaplex-pcr-panel-of-polymorphic-microsatellite-markers-closely-linked-to-the-dmpk-ctg-repeat-for-preimplantation-genetic-diagnosis-of-myotonic-dystrophy-type-1
#15
Mulias Lian, Mingjue Zhao, Caroline G Lee, Samuel S Chong
BACKGROUND: Preimplantation genetic diagnosis (PGD) of myotonic dystrophy type 1 (DM1) currently uses conventional PCR to detect nonexpanded dystrophia myotonica protein kinase (DMPK) alleles or triplet-primed PCR to detect the CTG-expanded alleles, coupled with analysis of linked microsatellite markers to increase diagnostic accuracy. We aimed to simplify the process of identification and selection of informative linked markers for application to DM1 PGD. METHODS: An in silico search was performed to identify all markers within 1-1...
April 20, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28427360/association-of-novel-polymorphisms-in-tmem39a-gene-with-systemic-lupus-erythematosus-in-a-chinese-han-population
#16
Xinze Cai, Wenyue Huang, Xudong Liu, Lining Wang, Yi Jiang
BACKGROUND: This study aimed to assess the association between 14 single nucleotide polymorphisms (SNPs) in six genes (IRF8, TMEM39A, IKZF3, ORMDL3, GSDMB, and ZPBP2) and systemic lupus erythematosus (SLE) in a Chinese Han population sample. METHODS: We carried out a case-control study of 415 patients with SLE and 470 healthy controls without autoimmune disease or cancer. DNA for genetic analysis was isolated from the blood of all subjects using standard phenol-chloroform method...
April 20, 2017: BMC Medical Genetics
https://www.readbyqxmd.com/read/28427158/the-varied-distribution-and-impact-of-ras-codon-and-other-key-dna-alterations-across-the-translocation-cyclin-d-subgroups-in-multiple-myeloma
#17
Caleb K Stein, Charlotte Pawlyn, Shweta Chavan, Leo Rasche, Niels Weinhold, Adam Corken, Amy Buros, Pieter Sonneveld, Graham H Jackson, Ola Landgren, Tariq Mughal, Jie He, Bart Barlogie, P Leif Bergsagel, Faith E Davies, Brian A Walker, Gareth J Morgan
We examined a set of 805 cases that underwent DNA sequencing using the FoundationOne Heme (F1H) targeted sequencing panel and gene expression profiling. Known and likely variant calls from the mutational data were analyzed for significant associations with gene expression defined translocation cyclin D (TC) molecular subgroups. The spectrum of KRAS, NRAS, and BRAF codon mutations varied across subgroups with NRAS mutations at Q61 codon being common in hyperdiploid (HRD) and t(11;14) myeloma while being rare in MMSET and MAF...
February 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28426704/population-effect-model-identifies-gene-expression-predictors-of-survival-outcomes-in-lung-adenocarcinoma-for-both-caucasian-and-asian-patients
#18
Guoshuai Cai, Feifei Xiao, Chao Cheng, Yafang Li, Christopher I Amos, Michael L Whitfield
BACKGROUND: We analyzed and integrated transcriptome data from two large studies of lung adenocarcinomas on distinct populations. Our goal was to investigate the variable gene expression alterations between paired tumor-normal tissues and prospectively identify those alterations that can reliably predict lung disease related outcomes across populations. METHODS: We developed a mixed model that combined the paired tumor-normal RNA-seq from two populations. Alterations in gene expression common to both populations were detected and validated in two independent DNA microarray datasets...
2017: PloS One
https://www.readbyqxmd.com/read/28425089/high-diagnostic-yield-of-clinically-unidentifiable-syndromic-growth-disorders-by-targeted-exome-sequencing
#19
Yoo-Mi Kim, Yun-Jin Lee, Jae Hong Park, Hyoung-Doo Lee, Chong Kun Cheon, Su-Young Kim, Jae-Yeon Hwang, Ja-Hyun Jang, Han-Wook Yoo
As syndromic short stature and overgrowth are heterogeneous and the list of causative genes is rapidly expanding, there is an unmet need for identifying genetic causes based on conventional gene testing or karyotyping. Early diagnosis leads to the proper management of the patient and providing genetic counseling for family members at risk in a timely manner. We conducted targeted exome sequencing to identify the genetic causes of undiagnosed syndromic short stature or overgrowth in 15 pediatric patients from 13 families in Korea...
April 20, 2017: Clinical Genetics
https://www.readbyqxmd.com/read/28424414/integrated-analysis-of-promoter-methylation-and-expression-of-telomere-related-genes-in-breast-cancer
#20
Jianfu Heng, Fan Zhang, Xinwu Guo, Lili Tang, Limin Peng, Xipeng Luo, Xunxun Xu, Shouman Wang, Lizhong Dai, Jun Wang
Telomeres at the ends of eukaryotic chromosomes play a critical role in tumorgenesis. Using microfluidic PCR and next-generation bisulfite sequencing technology, we investigated the promoter methylation of 29 telomere related genes in paired tumor and normal tissues from 184 breast cancer patients. The expression of significantly differentially methylated genes was quantified using qPCR method.We observed that the average methylation level of the 29 telomere related genes was significant higher in tumor than that in normal tissues (P = 4...
March 9, 2017: Oncotarget
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