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Cell to cell fusion

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https://www.readbyqxmd.com/read/28212528/the-crispr-cas9%C3%A2-system-efficiently-reverts-the-tumorigenic-ability-of-bcr-abl-in-vitro-and-in-a-xenograft-model-of-chronic-myeloid-leukemia
#1
Ignacio García-Tuñón, María Hernández-Sánchez, José Luis Ordoñez, Veronica Alonso-Pérez, Miguel Álamo-Quijada, Rocio Benito, Carmen Guerrero, Jesús María Hernández-Rivas, Manuel Sánchez-Martín
CRISPR/Cas9 technology was used to abrogate p210 oncoprotein expression in the Boff-p210 cell line, a pro-B line derived from interlukin-3-dependent Baf/3, that shows IL-3-independence arising from the constitutive expression of BCR-ABL p210. Using this approach, pools of Boff-p210-edited cells and single edited cell-derived clones were obtained and functionally studied in vitro. The loss of p210 expression in Boff-p210 cells resulted in the loss of ability to grow in the absence of IL-3, as the Baf/3 parental line, showing significantly increased apoptosis levels...
February 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28212503/lactobacillus-buchneri-s-layer-as-carrier-for-an-ara-h-2-derived-peptide-for-peanut-allergen-specific-immunotherapy
#2
Julia Anzengruber, Merima Bublin, Eva Bönisch, Bettina Janesch, Angelika Tscheppe, Matthias L Braun, Eva-Maria Varga, Christine Hafner, Heimo Breiteneder, Christina Schäffer
Peanut allergy is an IgE-mediated severe hypersensitivity disorder. The lack of a treatment of this potentially fatal allergy has led to intensive research on vaccine development. Here, we describe the design and initial characterization of a carrier-bound peptide derived from the most potent peanut allergen, Ara h 2, as a candidate vaccine. Based on the adjuvant capability of bacterial surface (S-) layers, a fusion protein of the S-layer protein SlpB from Lactobacillus buchneri CD034 and the Ara h 2-derived peptide AH3a42 was produced...
February 14, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28212443/recurrent-rearrangements-of-the-myb-sant-like-dna-binding-domain-containing-3-gene-msantd3-in-salivary-gland-acinic-cell-carcinoma
#3
Nicholas Barasch, Xue Gong, Kevin A Kwei, Sushama Varma, Jewison Biscocho, Kunbin Qu, Nan Xiao, Joseph S Lipsick, Robert J Pelham, Robert B West, Jonathan R Pollack
Pathogenic gene fusions have been identified in several histologic types of salivary gland neoplasia, but not previously in acinic cell carcinoma (AcCC). To discover novel gene fusions, we performed whole-transcriptome sequencing surveys of three AcCC archival cases. In one specimen we identified a novel HTN3-MSANTD3 gene fusion, and in another a novel PRB3-ZNF217 gene fusion. The structure of both fusions was consistent with the promoter of the 5' partner (HTN3 or PRB3), both highly expressed salivary gland genes, driving overexpression of full-length MSANTD3 or ZNF217...
2017: PloS One
https://www.readbyqxmd.com/read/28212314/a-gin4-like-protein-kinase-gil1-involvement-in-hyphal-growth-asexual-development-and-pathogenesis-in-fusarium-graminearum
#4
Dan Yu, Shijie Zhang, Xiaoping Li, Jin-Rong Xu, Zachary Schultzhaus, Qiaojun Jin
Fusarium graminearum is the main causal agent of Fusarium head blight (FHB) on wheat and barley. In a previous study, a GIN4-like protein kinase gene, GIL1, was found to be important for plant infection and sexual reproduction. In this study we further characterized the functions of GIL1 kinase in different developmental processes. The Δgil1 mutants were reduced in growth, conidiation, and virulence, and formed whitish and compact colonies. Although phialide formation was rarely observed in the mutants, deletion of GIL1 resulted in increased hyphal branching and increased tolerance to cell wall and cell membrane stresses...
February 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28211519/palindromic-amplification-of-the-erbb2-oncogene-in-primary-her2-positive-breast-tumors
#5
Michael Marotta, Taku Onodera, Jeffrey Johnson, G Thomas Budd, Takaaki Watanabe, Xiaojiang Cui, Armando E Giuliano, Atsushi Niida, Hisashi Tanaka
Oncogene amplification confers a growth advantage to tumor cells for clonal expansion. There are several, recurrently amplified oncogenes throughout the human genome. However, it remains unclear whether this recurrent amplification is solely a manifestation of increased fitness resulting from random amplification mechanisms, or if a genomic locus-specific amplification mechanism plays a role. Here we show that the ERBB2 oncogene at 17q12 is susceptible to palindromic gene amplification, a mechanism characterized by the inverted (palindromic) duplication of genomic segments, in HER2-positive breast tumors...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28210005/mll-is-essential-for-nup98-hoxa9-induced-leukemia
#6
Y Shima, M Yumoto, T Katsumoto, I Kitabayashi
Rearrangements involving the NUP98 gene resulting in fusions to several partner genes occur in acute myeloid leukemia and myelodysplastic syndromes. This study demonstrates that the second FG repeat domain of the NUP98 moiety of the NUP98-HOXA9 fusion protein is important for its cell immortalization and leukemogenesis activities. We demonstrate that NUP98-HOXA9 interacts with MLL via this FG repeat domain and that, in the absence of MLL, NUP98-HOXA9-induced cell immortalization and leukemogenesis are severely inhibited...
February 17, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28209207/recombinant-%C3%AE-actinin-subunit-antigens-of-trichomonas-vaginalis-as-potential-vaccine-candidates-in-protecting-against-trichomoniasis
#7
Yi-Ting Xie, Jiang-Mei Gao, Ya-Ping Wu, Petrus Tang, Geoff Hide, De-Hua Lai, Zhao-Rong Lun
BACKGROUND: Human trichomoniasis caused by Trichomonas vaginalis is one of the most common sexually transmitted diseases with more than 200 million cases worldwide. It has caused a series of health problems to patients. For prevention and control of infectious diseases, vaccines are usually considered as one of the most cost-efficient tools. However, until now, work on the development of T. vaginalis vaccines is still mainly focused on the screening of potential immunogens. Alpha-actinin characterized by high immunogenicity in T...
February 16, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28208226/a-rare-case-of-tfe-related-pigmented-renal-tumor-with-overlapping-features-between-melanotic-xp11-translocation-renal-cancer-and-xp11-renal-cell-carcinoma-with-melanotic-features
#8
Leonardo Cardili, Gregório Wrublevsky Pereira, Cristiano Ribeiro Viana
In recent years, an increasing number of TFE3 rearrangement-associated tumors with melanotic features have been reported as primary neoplasm in different anatomical sites, including the kidney. Melanotic Xp11 translocation renal cancer (MXTRC) and Xp11 renal cell carcinoma with melanotic features (XRCCM) have been proposed to be main categories for pigmented lesions in the microophthalmia-associated transcription factor (MiTF/TFE3) family of renal tumors that may show variable degrees of melanocytic differentiation...
February 16, 2017: Pathology International
https://www.readbyqxmd.com/read/28207873/classification-of-brain-disease-in-magnetic-resonance-images-using-two-stage-local-feature-fusion
#9
Tao Li, Wu Li, Yehui Yang, Wensheng Zhang
BACKGROUND: Many classification methods have been proposed based on magnetic resonance images. Most methods rely on measures such as volume, the cerebral cortical thickness and grey matter density. These measures are susceptible to the performance of registration and limited in representation of anatomical structure. This paper proposes a two-stage local feature fusion method, in which deformable registration is not desired and anatomical information is represented from moderate scale...
2017: PloS One
https://www.readbyqxmd.com/read/28207819/the-ins-and-outs-of-eukaryotic-viruses-knowledge-base-and-ontology-of-a-viral-infection
#10
Chantal Hulo, Patrick Masson, Edouard de Castro, Andrea H Auchincloss, Rebecca Foulger, Sylvain Poux, Jane Lomax, Lydie Bougueleret, Ioannis Xenarios, Philippe Le Mercier
Viruses are genetically diverse, infect a wide range of tissues and host cells and follow unique processes for replicating themselves. All these processes were investigated and indexed in ViralZone knowledge base. To facilitate standardizing data, a simple ontology of viral life-cycle terms was developed to provide a common vocabulary for annotating data sets. New terminology was developed to address unique viral replication cycle processes, and existing terminology was modified and adapted. The virus life-cycle is classically described by schematic pictures...
2017: PloS One
https://www.readbyqxmd.com/read/28206710/sucrose-transporter2-contributes-to-maize-growth-development-and-crop-yield
#11
Kristen A Leach, Thu M Tran, Thomas L Slewinski, Robert B Meeley, David M Braun
During daylight, plants produce excess photosynthates, including sucrose, which is temporarily stored in the vacuole. At night, plants remobilize sucrose to sustain metabolism and growth. Based on homology to other sucrose transporter (SUT) proteins, we hypothesized the maize (Zea mays) SUCROSE TRANSPORTER2 (ZmSUT2) protein functions as a sucrose/H(+) symporter on the vacuolar membrane to export transiently stored sucrose. To understand the biological role of ZmSut2, we examined its spatial and temporal gene expression, determined the protein subcellular localization, and characterized loss-of-function mutations...
February 16, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28205646/connexin30-3-is-expressed-in-mouse-embryonic-stem-cells-and-is-responsive-to-leukemia-inhibitory-factor
#12
Mikako Saito, Yuma Asai, Keiichi Imai, Shoya Hiratoko, Kento Tanaka
The expression of 19 connexin (Cx) isoforms was observed in the mouse embryonic stem (ES) cell line, EB3. Their expression patterns could be classified into either pluripotent state-specific, differentiating stage-specific, or non-specific Cxs. We focused on Cx30.3 as typical of the first category. Cx30.3 was pluripotent state-specific and upregulated by leukemia inhibitory factor (LIF), a specific cytokine that maintains the pluripotent state of ES cell, via a Jak signaling pathway. Cx30.3 protein was localized to both the cell membrane and cytosol...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28205584/a-postnatal-role-for-embryonic-myosin-revealed-by-myh3-mutations-that-alter-tgf%C3%AE-signaling-and-cause-autosomal-dominant-spondylocarpotarsal-synostosis
#13
Jennifer Zieba, Wenjuan Zhang, Jessica X Chong, Kimberly N Forlenza, Jorge H Martin, Kelly Heard, Dorothy K Grange, Merlin G Butler, Tjitske Kleefstra, Ralph S Lachman, Deborah Nickerson, Michael Regnier, Daniel H Cohn, Michael Bamshad, Deborah Krakow
Spondylocarpotarsal synostosis (SCT) is a skeletal disorder characterized by progressive vertebral, carpal and tarsal fusions, and mild short stature. The majority of affected individuals have an autosomal recessive form of SCT and are homozygous or compound heterozygous for nonsense mutations in the gene that encodes the cytoskeletal protein filamin B (FLNB), but a subset do not have FLNB mutations. Exome sequence analysis of three SCT patients negative for FLNB mutations identified an autosomal dominant form of the disease due to heterozygosity for missense or nonsense mutations in MYH3, which encodes embryonic myosin...
February 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28205173/measurement-of-mitochondrial-cholesterol-import-using-a-mitochondria-targeted-cyp11a1-fusion-construct
#14
Barry E Kennedy, Mark Charman, Barbara Karten
All animal membranes require cholesterol as an essential regulator of biophysical properties and function, but the levels of cholesterol vary widely among different subcellular compartments. Mitochondria, and in particular the inner mitochondrial membrane, have the lowest levels of cholesterol in the cell. Nevertheless, mitochondria need cholesterol for membrane maintenance and biogenesis, as well as oxysterol, steroid, and hepatic bile acid production. Alterations in mitochondrial cholesterol have been associated with a range of pathological conditions, including cancer, hepatosteatosis, cardiac ischemia, Alzheimer's, and Niemann-Pick Type C Disease...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28204885/de-bugging-and-maximizing-plant-cytochrome-p450-production-in-escherichia-coli-with-c-terminal-gfp-fusions
#15
Ulla Christensen, Dario Vazquez-Albacete, Karina M Søgaard, Tonja Hobel, Morten T Nielsen, Scott James Harrison, Anders Holmgaard Hansen, Birger Lindberg Møller, Susanna Seppälä, Morten H H Nørholm
Cytochromes P450 (CYP) are attractive enzyme targets in biotechnology as they catalyze stereospecific C-hydroxylations of complex core skeletons at positions that typically are difficult to access by chemical synthesis. Membrane bound CYPs are involved in nearly all plant pathways leading to the formation of high-value compounds. In the present study, we systematically maximize the heterologous expression of six different plant-derived CYP genes in Escherichia coli, using a workflow based on C-terminal fusions to the green fluorescent protein...
February 15, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28202953/fully-human-cd19-specific-chimeric-antigen-receptors-for-t-cell-therapy
#16
D Sommermeyer, T Hill, S M Shamah, A I Salter, Y Chen, K M Mohler, S R Riddell
Impressive results have been achieved by adoptively transferring T-cells expressing CD19-specific CARs with binding domains from murine mAbs to treat B-cell malignancies. T-cell mediated immune responses specific for peptides from the murine scFv antigen-binding domain of the CAR can develop in patients and result in premature elimination of CAR-T-cells increasing the risk of tumor relapse. As fully human scFv might reduce immunogenicity, we generated CD19-specific human scFvs with similar binding characteristics as the murine FMC63-derived scFv using human Ab/DNA-libraries...
February 16, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28202504/expression-profiling-of-circulating-microvesicles-reveals-intercellular-transmission-of-oncogenic-pathways
#17
Gloria Milani, Tobia Lana, Silvia Bresolin, Sanja Aveic, Anna Pasto, Chiara Frasson, Geertruy Te Kronnie
: Circulating microvesicles (MVs) have been described as important players in cell-to-cell communication carrying biological information under normal or pathological condition. MVs released by cancer cells may incorporate diverse biomolecules (e.g. active lipids, proteins and RNA) which can be delivered and internalized by recipient cells, potentially altering gene expression of recipient cells and eventually impacting disease progression. Leukemia in vitro model systems were used to investigate MVs as vehicles of protein-coding messages...
February 15, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28202288/tiam1-vav2-rac1-axis-a-tug-of-war-between-islet-function-and-dysfunction
#18
REVIEW
Anjaneyulu Kowluru
Glucose-stimulated insulin secretion [GSIS] from the islet β-cell involves a well-orchestrated interplay between metabolic and cationic events. It is well established that intracellular generation of adenine and guanine nucleotide triphosphates [e.g., ATP and GTP] represents one of the requisite signaling steps in GSIS. The small molecular mass GTP-binding proteins [G-proteins; e.g., Rac1 and Cdc42] have been shown to regulate islet β-cell function including actin cytoskeletal remodeling and fusion of insulin granules with the plasma membrane for GSIS to occur...
February 12, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28202040/subcellular-localization-and-interactions-of-infectious-salmon-anemia-virus-isav-m1-and-nep-as-well-as-host-hsc70
#19
Wenting Zhang, Chengzhi Cai, Li Lin, Yizhi Jane Tao, Meilin Jin
BACKGROUND: Infectious salmon anemia virus (ISAV) is an important fish pathogen that causes high mortality in farmed Atlantic salmon. The ISAV genome consists of eight single-stranded, negative-sense RNA segments. The six largest segments contain one open reading frame (ORF) each, and encode three polymerase proteins, nucleoprotein, fusion protein, and hemagglutinin esterase protein. The two smallest segments contain more than one ORF each. The segment 7 encodes non-structural protein 1 (NS1) and nuclear export protein (NEP), while segment 8 encodes matrix protein 1 and 2 (M1 and M2)...
February 15, 2017: Virology Journal
https://www.readbyqxmd.com/read/28199742/genetic-analysis-and-clinicopathological-features-of-alk-rearranged-renal-cell-carcinoma-in-a-large-series-of-resected-chinese-renal-cell-carcinoma-patients-and-literature-review
#20
Wenjuan Yu, Yuewei Wang, Yanxia Jiang, Wei Zhang, Yujun Li
AIMS: Anaplastic lymphoma kinase (ALK)-rearranged renal cell carcinoma (RCC) is a rare subtype of RCC reported in recent years with 8 cases so far. The present study is focused on screening ALK-rearranged cases from a large cohort of RCCs in China to determine the frequency of ALK rearrangement and investigate the clinicopathological features and outcomes. METHODS AND RESULTS: Tissues from a total of 477 RCC patients in China were embedded into tissue microarrays for immunostaining...
February 15, 2017: Histopathology
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