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https://www.readbyqxmd.com/read/29038283/ctx-m-15-producing-shewanella-sp-clinical-isolate-expressing-oxa-535-a-chromosome-encoded-oxa-48-variant-putative-progenitor-of-the-plasmid-encoded-oxa-436
#1
Agnès B Jousset, Laura Dabos, Rémy A Bonnin, Delphine Girlich, Anaïs Potron, Nicolas Cabanel, Laurent Dortet, Philippe Glaser, Thierry Naas
Shewanella spp. constitute a reservoir of antibiotic resistance determinants. In a bile sample, we have identified three Extended Spectrum β-lactamase (ESBL)-producing bacteria (Escherichia coli, Klebsiella pneumoniae and Shewanella sp. JAB-1) isolated from a child suffering from cholangitis. Our objectives were to characterize the genome and the resistome of the first ESBL-producing isolate of the genus Shewanella and determine whether plasmidic exchange occurred between the three-bacterial species. Bacterial isolates were characterized using MALDI-TOF, standard biochemical tools and antimicrobial susceptibility testing...
October 16, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29029482/in-vivo-immuno-targeting-of-an-extracellular-epitope-of-membrane-bound-preferentially-expressed-antigen-in-melanoma-prame
#2
Dmitry Pankov, Ludvig Sjöström, Teja Kalidindi, Sang-Gyu Lee, Kjell Sjöström, Rui Gardner, Michael R McDevitt, Richard O'Reilly, Daniel L J Thorek, Steven M Larson, Darren Veach, David Ulmert
Preferentially Expressed Antigen in Melanoma (PRAME) is a cancer/testis antigen that is overexpressed in a broad range of malignancies, while absent in most healthy human tissues, making it an attractive diagnostic cancer biomarker and therapeutic target. Although commonly viewed as an intracellular protein, we have demonstrated that PRAME has a membrane bound form with an external epitope targetable with conventional antibodies. We generated a polyclonal antibody (Membrane associated PRAME Antibody 1, MPA1) against an extracellular peptide sequence of PRAME...
September 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29029166/beyond-antigenic-match-possible-agent-host-and-immuno-epidemiological-influences-on-influenza-vaccine-effectiveness-during-the-2015-16-season-in-canada
#3
Danuta M Skowronski, Catharine Chambers, Suzana Sabaiduc, Gaston De Serres, Anne-Luise Winter, James A Dickinson, Jonathan B Gubbay, Steven J Drews, Christine Martineau, Hugues Charest, Mel Krajden, Nathalie Bastien, Yan Li
Background: Vaccine effectiveness (VE) estimates are reported from Canada's Sentinel Practitioner Surveillance Network (SPSN) for the 2015-16 influenza season, characterized by a delayed A(H1N1)pdm09 epidemic and concurrent B(Victoria) activity. Potential influences beyond antigenic match are explored including viral genomic variation, birth cohort effects, prior vaccination and epidemic period. Methods: VE was estimated by test-negative design comparing adjusted-odds ratio for influenza test-positivity among vaccinated vs...
October 4, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29020960/perspectives-in-immunotherapy-meeting-report-from-the-immunotherapy-bridge-napoli-november-30th-2016
#4
Paolo A Ascierto, Bruno Daniele, Hans Hammers, Vera Hirsh, Joseph Kim, Lisa Licitra, Rita Nanda, Sandro Pignata
The complex interactions between the immune system and tumors lead the identification of key molecules that govern these interactions: immunotherapeutics were designed to overcome the mechanisms broken by tumors to evade immune destruction. After the substantial advances in melanoma, immunotherapy currently includes many other type of cancers, but the melanoma lesson is essential to progress in other type of cancers, since immunotherapy is potentially improving clinical outcome in various solid and haematologic malignancies...
October 11, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28994388/-cancer-three-eras-of-personalized-medicine
#5
Bertrand Jordan
Since the completion of the first human DNA sequence, genomic approaches have penetrated into cancer research and therapy: first through expression profiling for diagnostic, prognostic and predictive purposes, then by sequencing of tumour DNA in order to define and apply targeted therapies. These overlapping changes occurred quite rapidly and are now overshadowed by immuno-oncology approaches that show much promise. There is however still much left to understand to make this more widely applicable, and the extreme cost of these therapies is a serious concern...
October 2017: Médecine Sciences: M/S
https://www.readbyqxmd.com/read/28978323/synergistic-oligodeoxynucleotide-strongly-promotes-cpg-induced-interleukin-6-production
#6
Shireen Nigar, Yoshinari Yamamoto, Takuma Okajima, Suguru Shigemori, Takashi Sato, Tasuku Ogita, Takeshi Shimosato
BACKGROUND: Bacterial genomes span a significant portion of diversity, reflecting their adaptation strategies; these strategies include nucleotide usage biases that affect chromosome configuration. Here, we explore an immuno-synergistic oligodeoxynucleotide (iSN-ODN, named iSN34), derived from Lactobacillus rhamnosus GG (LGG) genomic sequences, that exhibits a synergistic effect on immune response to CpG-induced immune activation. METHODS: The sequence of iSN34 was designed based on the genomic sequences of LGG...
October 4, 2017: BMC Immunology
https://www.readbyqxmd.com/read/28949047/arabidopsis-phosphatidylinositol-4-phosphate-5-kinase-2-contains-a-functional-nuclear-localization-sequence-and-interacts-with-alpha-importins
#7
Katharina Gerth, Feng Lin, Franziska Daamen, Wilhelm Menzel, Franziska Heinrich, Mareike Heilmann
The Arabidopsis phosphoinositide kinase PIP5K2 has been implicated in the control of membrane trafficking and is important for development and growth. In addition to cytosolic functions of phosphoinositides, a nuclear phosphoinositide system has been proposed, but evidence for nuclear phosphoinositides in plants is limited. Fluorescence-tagged variants of PIP5K2 reside in the nucleus of Arabidopsis root meristem cells, in addition to reported plasma membrane localization. Here we report on the interaction of PIP5K2 with alpha-importins and characterize its nuclear localization sequences (NLSs)...
September 26, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28939077/genomic-characterization-of-tobacco-nut-chewing-hpv-negative-early-stage-tongue-tumors-identify-mmp10-asa-candidate-to-predict-metastases
#8
Pawan Upadhyay, Nilesh Gardi, Sanket Desai, Pratik Chandrani, Asim Joshi, Bhaskar Dharavath, Priyanca Arora, Munita Bal, Sudhir Nair, Amit Dutt
OBJECTIVES: Nodal metastases status among early stage tongue squamous cell cancer patients plays a decisive role in the choice of treatment, wherein about 70% patients can be spared from surgery with an accurate prediction of negative pathological lymph node status. This underscores an unmet need for prognostic biomarkers to stratify the patients who are likely to develop metastases. MATERIALS AND METHODS: We performed high throughput sequencing of fifty four samples derived from HPV negative early stage tongue cancer patients habitual of chewing betel nuts, areca nuts, lime or tobacco using whole exome (n=47) and transcriptome (n=17) sequencing that were analyzed using in-house computational tools...
October 2017: Oral Oncology
https://www.readbyqxmd.com/read/28912897/genomic-analysis-of-tumor-microenvironment-immune-types-across-14-solid-cancer-types-immunotherapeutic-implications
#9
Yu-Pei Chen, Yu Zhang, Jia-Wei Lv, Ying-Qin Li, Ya-Qin Wang, Qing-Mei He, Xiao-Jing Yang, Ying Sun, Yan-Ping Mao, Jing-Ping Yun, Na Liu, Jun Ma
We performed a comprehensive immuno-genomic analysis of tumor microenvironment immune types (TMITs), which is classified into four groups based on PD-L1+CD8A or PD-L1+cytolytic activity (CYT) expression, across a broad spectrum of solid tumors in order to help identify patients who will benefit from anti- PD-1/PD-L1 therapy. The mRNA sequencing data from The Cancer Genome Atlas (TCGA) of 14 solid cancer types representing 6,685 tumor samples was analyzed. TMIT was classified only for those tumor types that both PD-L1 and CD8A/CYT could prefict mutation and/or neoantigen number...
2017: Theranostics
https://www.readbyqxmd.com/read/28903413/a-novel-heterozygous-germline-deletion-in-msh2-gene-in-a-five-generation-chinese-family-with-lynch-syndrome
#10
Bin Wu, Wuyang Ji, Shengran Liang, Chao Ling, Yan You, Lai Xu, Min-Er Zhong, Yi Xiao, Hui-Zhong Qiu, Jun-Yang Lu, Santasree Banerjee
Lynch syndrome (LS) is one of the most common familial forms of colorectal cancer predisposing syndrome with an autosomal dominant mode of inheritance. LS is caused by the germline mutations in DNA mismatch repair (MMR) genes including MSH2, MLH1, MSH6 and PMS2. Clinically, LS is characterized by high incidence of early-onset colorectal cancer as well as endometrial, small intestinal and urinary tract cancers, usually occur in the third to fourth decade of the life. Here we describe a five generation Chinese family with LS clinically diagnosed according to the Amsterdam II criteria...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28888829/sensitivity-specificity-and-comparison-of-three-commercially-available-immunological-tests-in-the-diagnosis-of-cryptosporidium-species-in-animals
#11
Olga Danišová, Monika Halánová, Alexandra Valenčáková, Lenka Luptáková
The study was conducted to compare the specificity of immunological diagnostic methods used for the diagnosis of Cryptosporidium species capable of causing life-threatening infection in both immunosuppressed and immunocompetent patients. For the detection of Cryptosporidium species in 79 animals with diarrhoea, we used three Copro-antigen tests: RIDASCREEN(®)Cryptosporidium test, Cryptosporidium 2nd Generation (ELISA) and RIDA(®)QUICK Cryptosporidium. For immunoassays we used positive and negative samples detected by means of polymerase chain reaction and validated by sequencing and nested polymerase chain reaction to confirm the presence six different species of Cryptosporidium species...
September 6, 2017: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/28865968/-computational-medical-imaging-radiomics-and-potential-for-immuno-oncology
#12
REVIEW
R Sun, E J Limkin, L Dercle, S Reuzé, E I Zacharaki, C Chargari, A Schernberg, A S Dirand, A Alexis, N Paragios, É Deutsch, C Ferté, C Robert
The arrival of immunotherapy has profoundly changed the management of multiple cancers, obtaining unexpected tumour responses. However, until now, the majority of patients do not respond to these new treatments. The identification of biomarkers to determine precociously responding patients is a major challenge. Computational medical imaging (also known as radiomics) is a promising and rapidly growing discipline. This new approach consists in the analysis of high-dimensional data extracted from medical imaging, to further describe tumour phenotypes...
October 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28864725/the-challenge-for-development-of-valuable-immuno-oncology-biomarkers
#13
EDITORIAL
Janice M Mehnert, Arta M Monjazeb, Johanna M T Beerthuijzen, Deborah Collyar, Larry Rubinstein, Lyndsay N Harris
The development of immunotherapy is an important breakthrough for the treatment of cancer, with antitumor efficacy observed in a wide variety of tumors. To optimize immunotherapy use, approaches must be developed to identify which patients are likely to achieve benefit. To minimize therapeutic toxicities and costs, understanding the ideal choice and sequencing of the numerous immuno-oncology agents available for individual patients is thus critical, but fraught with challenges. The immune tumor microenvironment (TME) is a unique aspect of the response to immuno-oncology agents and measurement of single biomarkers does not adequately capture these complex interactions...
September 1, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28863889/transcriptome-analysis-of-mytilus-coruscus-hemocytes-in-response-to-vibrio-alginnolyficus-infection
#14
Wenqiang Dong, Yongxia Chen, Weixiao Lu, Bin Wu, Pengzhi Qi
As an economically important bivalve, the Mytilus coruscus is cultured widely in the eastern coast of China. In recent years, this bivalve has been seriously affected by the pathogenic infections. To elucidate the host defense mechanisms of M. coruscus against pathogenic challenge, the hemocyte transcriptomes of M. coruscus before and after Vibrio alginnolyficus infection were analyzed using the deep-sequencing platform Illumina/HiSeq-2500, meanwhile the differentially expressed genes (DEGs) were investigated...
August 30, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28853863/nuclear-and-mitochondrial-dna-methylation-patterns-induced-by-valproic-acid-in-human-hepatocytes
#15
Jarno E J Wolters, Simone G J van Breda, Florian Caiment, Sandra M Claessen, Theo M C M de Kok, Jos C S Kleinjans
Valproic acid (VPA) is one of the most widely prescribed antiepileptic drugs in the world. Despite its pharmacological importance, it may cause liver toxicity and steatosis through mitochondrial dysfunction. The aim of this study is to further investigate VPA-induced mechanisms of steatosis by analyzing changes in patterns of methylation in nuclear DNA (nDNA) and mitochondrial DNA (mtDNA). Therefore, primary human hepatocytes (PHHs) were exposed to an incubation concentration of VPA that was shown to cause steatosis without inducing overt cytotoxicity...
October 16, 2017: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/28821267/small-size-recombinant-adenoviral-hexon-protein-fragments-for-the-production-of-virus-type-specific-antibodies
#16
Martin Pacesa, Rodinde Hendrickx, Manuela Bieri, Justin W Flatt, Urs F Greber, Silvio Hemmi
BACKGROUND: Adenoviruses are common pathogens infecting animals and humans. They are classified based on serology, or genome sequence information. These methods have limitations due to lengthy procedures or lack of infectivity data. Adenoviruses are easy to produce and amenable to genetic and biochemical modifications, which makes them a powerful tool for biological studies, and clinical gene-delivery and vaccine applications. Antibodies directed against adenoviral proteins are important diagnostic tools for virus identification in vivo and in vitro, and are used to elucidate infection mechanisms, often in combination with genomic sequencing and type specific information from hyper-variable regions of structural proteins...
August 18, 2017: Virology Journal
https://www.readbyqxmd.com/read/28819569/a-study-on-il8rb-gene-polymorphism-as-a-potential-immuno-compromised-adherent-in-exaggeration-of-parenteral-and-mammo-crine-oxidative-stress-during-mastitis-in-buffalo
#17
S M El Nahas, A H El Kasas, A A Abou Mossallem, M I Abdelhamid, Mohamad Warda
The genetic markers in inflammatory responses during mastitis afford a reasonable way for improving milk production in the Egyptian buffalo breed. Among them is the interleukin 8 Receptor Gene (IL8RB) (CXCR2); a chemokine receptor gene augments the neutrophil migration during infection. To understand its role better during mastitis in Egyptian buffalos, twenty-five dairy animals representing the normal, sub-clinically, clinically and chronically affected buffalos were randomly selected from different districts...
November 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/28815043/the-mek-inhibitor-selumetinib-complements-ctla-4-blockade-by-reprogramming-the-tumor-immune-microenvironment
#18
Edmund Poon, Stefanie Mullins, Amanda Watkins, Geoffrey S Williams, Jens-Oliver Koopmann, Gianfranco Di Genova, Marie Cumberbatch, Margaret Veldman-Jones, Shaun E Grosskurth, Vasu Sah, Alwin Schuller, Corrine Reimer, Simon J Dovedi, Paul D Smith, Ross Stewart, Robert W Wilkinson
BACKGROUND: T-cell checkpoint blockade and MEK inhibitor combinations are under clinical investigation. Despite progress elucidating the immuno-modulatory effects of MEK inhibitors as standalone therapies, the impact of MEK inhibition on the activity of T-cell checkpoint inhibitors remains incompletely understood. Here we sought to characterize the combined effects of MEK inhibition and anti-CTLA-4 mAb (anti-CTLA-4) therapy, examining effects on both T-cells and tumor microenvironment (TME)...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28807001/the-mek-inhibitor-selumetinib-complements-ctla-4-blockade-by-reprogramming-the-tumor-immune-microenvironment
#19
Edmund Poon, Stefanie Mullins, Amanda Watkins, Geoffrey S Williams, Jens-Oliver Koopmann, Gianfranco Di Genova, Marie Cumberbatch, Margaret Veldman-Jones, Shaun E Grosskurth, Vasu Sah, Alwin Schuller, Corrine Reimer, Simon J Dovedi, Paul D Smith, Ross Stewart, Robert W Wilkinson
BACKGROUND: T-cell checkpoint blockade and MEK inhibitor combinations are under clinical investigation. Despite progress elucidating the immuno-modulatory effects of MEK inhibitors as standalone therapies, the impact of MEK inhibition on the activity of T-cell checkpoint inhibitors remains incompletely understood. Here we sought to characterize the combined effects of MEK inhibition and anti-CTLA-4 mAb (anti-CTLA-4) therapy, examining effects on both T-cells and tumor microenvironment (TME)...
August 15, 2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28796785/low-renal-but-high-extrarenal-phenotype-variability-in-schimke-immuno-osseous-dysplasia
#20
Beata S Lipska-Ziętkiewicz, Jutta Gellermann, Olivia Boyer, Olivier Gribouval, Szymon Ziętkiewicz, Jameela A Kari, Mohamed A Shalaby, Fatih Ozaltin, Jiri Dusek, Anette Melk, Aysun K Bayazit, Laura Massella, Lidia Hyla-Klekot, Sandra Habbig, Astrid Godron, Maria Szczepańska, Beata Bieniaś, Dorota Drożdż, Rasha Odeh, Wioletta Jarmużek, Katarzyna Zachwieja, Agnes Trautmann, Corinne Antignac, Franz Schaefer
Schimke immuno-osseous dysplasia (SIOD) is a rare multisystem disorder with early mortality and steroid-resistant nephrotic syndrome (SRNS) progressing to end-stage kidney disease. We hypothesized that next-generation gene panel sequencing may unsurface oligosymptomatic cases of SIOD with potentially milder disease courses. We analyzed the renal and extrarenal phenotypic spectrum and genotype-phenotype associations in 34 patients from 28 families, the largest SMARCAL1-associated nephropathy cohort to date. In 11 patients the diagnosis was made unsuspectedly through SRNS gene panel testing...
2017: PloS One
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