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https://www.readbyqxmd.com/read/29036806/pritumumab-the-first-therapeutic-antibody-for-glioma-patients
#1
Ivan Babic, Elmar Nurmemmedov, Venkata M Yenugonda, Tiffany Juarez, Natsuko Nomura, Sandeep C Pingle, Mark C Glassy, Santosh Kesari
Immunotherapy is now at the forefront of cancer therapeutic development. Gliomas are a particularly aggressive form of brain cancer for which immunotherapy may hold promise. Pritumumab (also known in the literature as CLNH11, CLN-IgG, and ACA-11) was the first monoclonal antibody tested in cancer patients. Pritumumab is a natural human monoclonal antibody developed from a B lymphocyte isolated from a regional draining lymph node of a patient with cervical carcinoma. The antibody binds ecto-domain vimentin on the surface of cancer cells...
September 1, 2017: Human Antibodies
https://www.readbyqxmd.com/read/29036791/globo-h-expression-is-associated-with-driver-mutations-and-pd-l1-expressions-in-stage-i-non-small-cell-lung-cancer
#2
Ching-Yao Yang, Mong-Wei Lin, Yih-Leong Chang, Chen-Tu Wu
BACKGROUND: Globo H is a tumor-associated carbohydrate antigen exclusively expressed in cancer cells rather than normal tissue. Globo H has been found on many cancers of epithelial origins, and become an attractive target for cancer vaccine. OBJECTIVES: We aimed to study the expression of Globo H in non-small cell lung cancer (NSCLC) patients, and correlated its expression with common driver mutations, clinical outcomes, and status of immune checkpoint, programmed death-ligand 1 (PD-L1)...
September 29, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/29036714/accounting-for-technical-noise-in-differential-expression-analysis-of-single-cell-rna-sequencing-data
#3
Cheng Jia, Yu Hu, Derek Kelly, Junhyong Kim, Mingyao Li, Nancy R Zhang
Recent technological breakthroughs have made it possible to measure RNA expression at the single-cell level, thus paving the way for exploring expression heterogeneity among individual cells. Current single-cell RNA sequencing (scRNA-seq) protocols are complex and introduce technical biases that vary across cells, which can bias downstream analysis without proper adjustment. To account for cell-to-cell technical differences, we propose a statistical framework, TASC (Toolkit for Analysis of Single Cell RNA-seq), an empirical Bayes approach to reliably model the cell-specific dropout rates and amplification bias by use of external RNA spike-ins...
September 25, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29036695/identifying-greener-and-safer-plasticizers-a-4-step-approach
#4
Océane Albert, Thomas C Nardelli, Barbara F Hales, Bernard Robaire
The health and economic burden of endocrine disrupting chemicals, such as the plasticizer di(2-ethylhexyl) phthalate (DEHP), is prompting industry to develop alternatives. However, the absence of requirements for manufacturers to ensure the safety of these alternatives has led to the generation of replacements that may have similar or worse effects than the original chemicals. Consequently, there is increasing recognition by scientists, regulators and industry that proactive approaches are needed to develop safe chemical substitutes...
August 2, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29036595/persistent-in-vivo-cytogenetic-effects-of-radioiodine-therapy-a-21-year-follow-up-study-using-multicolor-fish
#5
Gordon K Livingston, Maria Escalona, Alvis Foster, Adayabalam S Balajee
Our previous studies demonstrated the cytogenetic effects in the peripheral blood lymphocytes of a 34-year-old male patient who received ablative radioactive 131iodine therapy (RIT) on two different occasions in 1992 and 1994. Assessment of RIT-induced chromosomal damage by the cytokinesis-blocked micronucleus assay (CBMN) showed the persistence of elevated micronucleus frequency in this patient for more than two decades since the first RIT. Subsequent cytogenetic analysis performed in 2012 revealed both stable and unstable aberrations, whose frequencies were higher than the baseline reported in the literature...
September 21, 2017: Journal of Radiation Research
https://www.readbyqxmd.com/read/29036488/morphological-physiological-and-ultrastructural-changes-in-flower-explain-the-spatio-temporal-emission-of-scent-volatiles-in-polianthes-tuberosa-l
#6
Saborni Maiti, Adinpunya Mitra
Tuberose or Polianthes tuberosa L. is a horticultural crop of tropical origin, widely cultivated for its adorable and intense floral fragrance in the evening. Here an investigation was made on the physiological and cell biological aspects of floral scent biosynthesis, tissue localization and emission that have not previously been examined. Volatiles collected from floral headspace were analysed through GC-MS for identification of individual compounds and elucidation of emission patterns. Transcripts accumulation and the amount of active enzyme were measured to understand the enzymatic route of scent volatiles biosynthesis...
September 22, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/29036468/exponential-propagation-of-large-circular-dna-by-reconstitution-of-a-chromosome-replication-cycle
#7
Masayuki Su'etsugu, Hiraku Takada, Tsutomu Katayama, Hiroko Tsujimoto
Propagation of genetic information is a fundamental property of living organisms. Escherichia coli has a 4.6 Mb circular chromosome with a replication origin, oriC. While the oriC replication has been reconstituted in vitro more than 30 years ago, continuous repetition of the replication cycle has not yet been achieved. Here, we reconstituted the entire replication cycle with 14 purified enzymes (25 polypeptides) that catalyze initiation at oriC, bidirectional fork progression, Okazaki-fragment maturation and decatenation of the replicated circular products...
September 28, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29036456/role-of-free-dna-ends-and-protospacer-adjacent-motifs-for-crispr-dna-uptake-in-pyrococcus-furiosus
#8
Masami Shiimori, Sandra C Garrett, Dwain P Chambers, Claiborne V C Glover, Brenton R Graveley, Michael P Terns
To acquire CRISPR-Cas immunity against invasive mobile genetic elements, prokaryotes must first integrate fragments of foreign DNA into their genomic CRISPR arrays for use in future invader silencing. Here, we found that the hyperthermophilic archaeaon, Pyrococcus furiosus, actively incorporates DNA fragments (spacers) from both plasmid (foreign) and host genome (self) sequences into its seven CRISPR loci. The majority of new spacers were derived from DNA immediately downstream from a 5'-CCN-3' protospacer adjacent motif (PAM) that is critical for invader targeting...
September 25, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29036365/the-developmental-origin-and-compartmentalization-of-glutathione-s-transferase-omega-2-isoforms-in-the-perinuclear-theca-of-eutherian-spermatozoa
#9
Lauren E Hamilton, Genevieve Acteau, Wei Xu, Peter Sutovsky, Richard J Oko
The perinuclear theca (PT) is a condensed, non-ionic detergent resistant cytosolic protein layer encapsulating the sperm head nucleus. It can be divided into two regions: the subacrosomal layer (SAL), whose proteins are involved in acrosomal assembly during spermiogenesis and the postacrosomal sheath (PAS), whose proteins are implicated in sperm-oocyte interactions during fertilization. In continuation of our proteomic analysis of the PT, we have isolated two prominent PT derived proteins of 28- and 31-kDa from demembranated bovine sperm head fractions...
October 4, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/29036220/defective-replication-initiation-results-in-locus-specific-chromosome-breakage-and-a-ribosomal-rna-deficiency-in-yeast
#10
Joseph C Sanchez, Elizabeth X Kwan, Thomas J Pohl, Haley M Amemiya, M K Raghuraman, Bonita J Brewer
A form of dwarfism known as Meier-Gorlin syndrome (MGS) is caused by recessive mutations in one of six different genes (ORC1, ORC4, ORC6, CDC6, CDT1, and MCM5). These genes encode components of the pre-replication complex, which assembles at origins of replication prior to S phase. Also, variants in two additional replication initiation genes have joined the list of causative mutations for MGS (Geminin and CDC45). The identity of the causative MGS genetic variants strongly suggests that some aspect of replication is amiss in MGS patients; however, little evidence has been obtained regarding what aspect of chromosome replication is faulty...
October 16, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/29035997/stewart-treves-syndrome-on-the-lower-extremity-associated-to-idiopathic-chronic-lymphedema-visualized-on-fdg-pet-ct
#11
Jane Maestri Brittain, Tine Nymark, Malene Grubbe Hildebrandt, Dorrit Hovgaard, Kim Francis Andersen
Angiosarcomas are highly malignant and rare tumors of vascular or lymphatic endothelial cell origin with a poor prognosis. Lymphangiosarcoma associated with chronic lymphedema is known as Stewart-Treves syndrome. Stewart-Treves syndrome is primarily described in patients with lymphedema of an upper extremity occurring after breast cancer surgery including radical axillary lymph node dissection and subsequent radiotherapy. It is rarely described in the presence of idiopathic chronic lymphedema of the lower extremities...
October 13, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29035947/cross-reactivity-of-hiv-vaccine-responses-and-the-microbiome
#12
Wilton B Williams, Qifeng Han, Barton F Haynes
PURPOSE OF REVIEW: A successful HIV-type 1 (HIV-1) vaccine will require immunogens that induce protective immune responses. However, recent studies suggest that the response to HIV-1 and perhaps other viruses may be altered by immune system exposure to intestinal microbiota-antigens. This review will discuss select aspects of these studies. RECENT FINDINGS: Naïve CD4 T and B cell repertoires can be imprinted by intestinal microbiota-antigens to respond to virus epitopes prior to virus infection...
October 14, 2017: Current Opinion in HIV and AIDS
https://www.readbyqxmd.com/read/29035842/derivation-and-characterization-of-integration-free-ipsc-line-isrm-um51-derived-from-six2-positive-renal-cells-isolated-from-urine-of-an-african-male-expressing-the-cyp2d6-4-17-variant-which-confers-intermediate-drug-metabolizing-activity
#13
Martina Bohndorf, Audrey Ncube, Lucas-Sebastian Spitzhorn, Jürgen Enczmann, Wasco Wruck, James Adjaye
SIX2-positive renal cells isolated from urine from a 51year old male of African origin bearing the CYP2D6 *4/*17 variant were reprogrammed by nucleofection of a combination of two episomal-based plasmids omitting pathway (TGFβ, MEK and GSK3β) inhibition. The induced pluripotent stem cells (iPSCs) were characterized by immunocytochemistry, embryoid body formation, DNA-fingerprinting and karyotype analysis. Comparative transcriptome analyses with human embryonic stem cell lines H1 and H9 revealed a Pearson correlation of 0...
October 7, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/29034886/generation-and-characterization-of-human-induced-pluripotent-stem-cell-hipsc-lines-from-an-alzheimer-s-disease-asui001-a-and-non-demented-control-asui002-a-patient-homozygous-for-the-apolipoprotein-e4-apoe4-risk-variant
#14
Nicholas Brookhouser, Ping Zhang, Richard Caselli, Jean J Kim, David A Brafman
Although the majority of late-onset Alzheimer's disease (AD) patients are labeled sporadic, multiple genetic risk variants have been identified, the most powerful and prevalent of which is the e4 variant of the Apolipoprotein E (APOE) gene. Here, we generated human induced pluripotent stem cell (hiPSC) lines from the peripheral blood mononuclear cells (PBMCs) of a clinically diagnosed AD patient [ASUi001-A] and a non-demented control (NDC) patient [ASUi002-A] homozygous for the APOE4 risk allele. These hiPSCs maintained their original genotype, expressed pluripotency markers, exhibited a normal karyotype, and demonstrated the ability to differentiate into cells representative of the three germ layers...
October 2017: Stem Cell Research
https://www.readbyqxmd.com/read/29034885/generation-and-characterization-of-a-human-induced-pluripotent-stem-ips-cell-line-derived-from-an-acute-myeloid-leukemia-patient-evolving-from-primary-myelofibrosis-carrying-the-calr-52bp-deletion-and-the-asxl1-p-r693x-mutation
#15
Cintia E Gomez Limia, Sylvie Devalle, Marcelo Reis, Jaroslaw Sochacki, Mayra Carneiro, Rodrigo Madeiro da Costa, Mariana D'Andrea, Telma Padilha, Ilana R Zalcberg, Cristiana Solza, Adelmo Daumas, Stevens Rehen, Bárbara Monte-Mór, Martín H Bonamino
Peripheral blood sample was donated by a 61years old female patient diagnosed with acute myeloid leukemia secondary to a primary myelofibrosis harboring the 52-bp deletion in the CALR gene (c.1092_1143del, p.L367fs*46) and the R693X mutation in the ASXL1 gene (c.2077C>T, p.R693X). CD34+ cells were isolated from the sample and subjected to the reprogramming procedure by using the Sendai virus carrying the reprogramming factors Oct3/4, Sox2, Klf4 and c-Myc. iPS colonies generated retained the original mutations and displayed all the features of bona fide iPS cells...
October 2017: Stem Cell Research
https://www.readbyqxmd.com/read/29034587/open-fluidics-a-cell-culture-flow-system-developed-over-wettability-contrast-based-chips
#16
Nuno M Oliveira, Rui L Reis, João F Mano
Biological tissues are recurrently exposed to several dynamic mechanical forces that influence cell behavior. On this work, the focus is on the shear stress forces induced by fluid flow. The study of flow-induced effects on cells leads to important advances in cardiovascular, cancer, stem cell, and bone biology understanding. These studies are performed using cell culture flow (CCF) systems, mainly parallel plate flow chambers (PPFC), and microfluidic systems. Here, it is proposed an original CCF system based on the open fluidics concept...
October 16, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/29034482/deep-reinforcement-learning-for-automated-radiation-adaptation-in-lung-cancer
#17
Huan-Hsin Tseng, Yi Luo, Sunan Cui, Jen-Tzung Chien, Randall K Ten Haken, Issam El Naqa
PURPOSE: To investigate deep reinforcement learning (DRL) based on historical treatment plans for developing automated radiation adaptation protocols for non-small cell lung cancer (NSCLC) patients that aim to maximize tumor local control at reduced rates of radiation pneumonitis grade 2 (RP2). METHODS: In a retrospective population of 114 NSCLC patients who received radiotherapy, a 3-component neural networks framework was developed for deep reinforcement learning (DRL) of dose fractionation adaptation...
October 16, 2017: Medical Physics
https://www.readbyqxmd.com/read/29034473/development-and-maturation-of-the-fibrous-components-of-the-arterial-roots-in-the-mouse-heart
#18
Rachel Richardson, Lorraine Eley, Charlotte Donald-Wilson, Jonathon Davis, Natasha Curley, Ahlam Alqahtani, Lindsay Murphy, Robert H Anderson, Deborah J Henderson, Bill Chaudhry
The arterial roots are important transitional regions of the heart, connecting the intrapericardial components of the aortic and pulmonary trunks with their ventricular outlets. They house the arterial (semilunar) valves and, in the case of the aorta, are the points of coronary arterial attachment. Moreover, because of the semilunar attachments of the valve leaflets, the arterial roots span the anatomic ventriculo-arterial junction. By virtue of this arrangement, the interleaflet triangles, despite being fibrous, are found on the ventricular aspect of the root and located within the left ventricular cavity...
October 15, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/29034215/the-proteome-of-biologically-active-membrane-vesicles-from-piscirickettsia-salmonis-lf-89-type-strain-identifies-plasmid-encoded-putative-toxins
#19
Cristian Oliver, Mauricio A Hernández, Julia I Tandberg, Karla N Valenzuela, Leidy X Lagos, Ronie E Haro, Patricio Sánchez, Pamela A Ruiz, Constanza Sanhueza-Oyarzún, Marcos A Cortés, María T Villar, Antonio Artigues, Hanne C Winther-Larsen, Ruben Avendaño-Herrera, Alejandro J Yáñez
Piscirickettsia salmonis is the predominant bacterial pathogen affecting the Chilean salmonid industry. This bacterium is the etiological agent of piscirickettsiosis, a significant fish disease. Membrane vesicles (MVs) released by P. salmonis deliver several virulence factors to host cells. To improve on existing knowledge for the pathogenicity-associated functions of P. salmonis MVs, we studied the proteome of purified MVs from the P. salmonis LF-89 type strain using multidimensional protein identification technology...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/29034209/bridge-induced-translocation-between-nup145-and-top2-yeast-genes-models-the-genetic-fusion-between-the-human-orthologs-associated-with-acute-myeloid-leukemia
#20
Valentina Tosato, Nicole West, Jan Zrimec, Dmitri V Nikitin, Giannino Del Sal, Roberto Marano, Michael Breitenbach, Carlo V Bruschi
In mammalian organisms liquid tumors such as acute myeloid leukemia (AML) are related to spontaneous chromosomal translocations ensuing in gene fusions. We previously developed a system named bridge-induced translocation (BIT) that allows linking together two different chromosomes exploiting the strong endogenous homologous recombination system of the yeast Saccharomyces cerevisiae. The BIT system generates a heterogeneous population of cells with different aneuploidies and severe aberrant phenotypes reminiscent of a cancerogenic transformation...
2017: Frontiers in Oncology
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