keyword
MENU ▼
Read by QxMD icon Read
search

Recombination

keyword
https://www.readbyqxmd.com/read/28550528/prion-like-seeding-of-misfolded-%C3%AE-synuclein-in-the-brains-of-dementia-with-lewy-body-patients-in-rt-quic
#1
Kazunori Sano, Ryuichiro Atarashi, Katsuya Satoh, Daisuke Ishibashi, Takehiro Nakagaki, Yasushi Iwasaki, Mari Yoshida, Shigeo Murayama, Kenichi Mishima, Noriyuki Nishida
The prion-like seeding of misfolded α-synuclein (αSyn) involved in the pathogenesis of Lewy body diseases (LBD) remains poorly understood at the molecular level. Using the real-time quaking-induced conversion (RT-QUIC) seeding assay, we investigated whether brain tissues from cases of dementia with Lewy bodies (DLB), which contain serine 129 (Ser129)-phosphorylated insoluble aggregates of αSyn, can convert Escherichia coli-derived recombinant αSyn (r-αSyn) to fibrils. Diffuse neocortical DLB yielded 50% seeding dose (SD50) values of 10(7)~10(10)/g brain...
May 26, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28550523/morphological-evaluation-of-retinal-ganglion-cells-expressing-the-l132c-t159c-chr2-mutant-transgene-in-young-adult-cynomolgus-monkeys
#2
Wenyao Wang, Yan Nan, Zhuo-Hua Pan, Mingliang Pu
To characterize recombinant AAV2 (rAAV2)-mediated expression of L132C/T159C ChR2 mutant in retinal ganglion cells (RGCs) of young adult cynomolgus monkeys. rAAV2 vectors carrying a fusion construct of the ChR2 mutant and GFP (ChR2-GFP) were delivered to the vitreous chamber by intravitreal injection. Expression patterns of the ChR2 mutant in RGCs were examined by immunohistochemical methods three months after injection. The RNA-binding protein with multiple splicing (RBPMS) was used as an RGC specific marker to differentiate RGCs from other retinal neurons and non-neuronal cells...
May 25, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28550501/grass-carp-reovirus-gd108-fiber-protein-is-involved-in-cell-attachment
#3
Yuanyuan Tian, Zhenzhen Jiao, Junjian Dong, Chengfei Sun, Xiaoyan Jiang, Xing Ye
Viral attachment to specific host receptors is the first step in viral infection and serves an essential function in the selection of target cells. In this study, structure analysis, neutralization assays, and cell attachment assays were carried out to evaluate the cell attachment functions of the outer capsid fiber protein of grass carp reovirus GD108 strain (GCRV-GD108). The GCRV-GD108 fiber protein contained 512 amino acids encoded by S7 segment and shared sequence similarities with mammalian reovirus cell attachment protein σ1 and adenovirus fiber...
May 26, 2017: Virus Genes
https://www.readbyqxmd.com/read/28550469/isolation-and-functional-characterization-of-3-phosphoglycerate-dehydrogenase-involved-in-salt-responses-in-sugar-beet
#4
Kunihide Kito, Koichi Tsutsumi, Vandna Rai, Cattarin Theerawitaya, Suriyan Cha-Um, Nana Yamada-Kato, Shota Sakakibara, Yoshito Tanaka, Teruhiro Takabe
The present study investigated the significance of serine biosynthetic genes for salt stress in sugar beet (Beta vulgaris). We isolated a total of four genes, two each encoding D-3-phosphoglycerate dehydrogenase (BvPGDHa and BvPGDHb) and serine hydroxymethyl transferase (BvSHMTa and BvSHMTb). mRNA transcriptional expression for BvPGDHa was significantly enhanced under salt stress conditions in both leaves and roots of sugar beet, whereas it was reduced for BvPGDHb. On the other hand, BvSHMTa was expressed transiently in leaves and roots under salt stress, whereas expression level of BvSHMTb was not altered...
May 26, 2017: Protoplasma
https://www.readbyqxmd.com/read/28550434/flagellin-fljb-as-an-adjuvant-to-the-recombinant-adenovirus-rabies-glycoprotein-vaccine-increases-immune-responses-against-rabies-in-mice
#5
Xingxing Xiao, Yun Zhang, Qiaolin Wei, Xiangping Yin
Rabies virus (RABV) causes an acute progressive viral encephalitis. Although currently licensed vaccines have an excellent safety and efficacy record, the development of a safer and more cost-effective vaccine is still being sought. An E1-deleted, replication-defective human adenovirus type 5 (HAd5) vector expressing RABV glycoprotein (HAd5-G) is thought to be a promising candidate vaccine for immune prophylaxis against rabies. Salmonella enterica serovar Typhimurium (S. Typhimurium) flagellin is a well-known immune adjuvant...
May 26, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28550352/efficacy-and-safety-of-full-length-pegylated-recombinant-factor-viii-with-extended-half-life-in-previously-treated-patients-with-hemophilia-a-comparison-of-data-between-the-general-and-japanese-study-populations
#6
Keiji Nogami, Midori Shima, Katsuyuki Fukutake, Teruhisa Fujii, Masashi Taki, Tadashi Matsushita, Satoshi Higasa, Tetsuji Sato, Michio Sakai, Morio Arai, Haruhiko Uchikawa, Werner Engl, Brigitt Abbuehl, Barbara A Konkle
Rurioctocog alfa pegol (BAX 855) is a novel third-generation recombinant factor VIII whose active ingredient is chemically modified with polyethylene glycol. A global multicenter phase 2/3 study of the product in 137 patients (including 11 patients from Japan) with severe hemophilia A aged 12-65 years, reported an extended half-life and a good tolerability profile, as well as a significantly lower annualized bleeding rate in the prophylactic treatment arm than in the on-demand treatment arm. Using descriptive statistics, a post hoc analysis was performed to compare the pharmacokinetics, safety, and efficacy profiles of the product in the Japanese subpopulation and the overall population...
May 26, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28550350/recent-advances-in-the-study-of-immunodeficiency-and-dna-damage-response
#7
REVIEW
Tomohiro Morio
DNA breaks can be induced by exogenous stimuli or by endogenous stress, but are also generated during recombination of V, D, and J genes (V(D)J recombination), immunoglobulin class switch recombination (CSR). Among various DNA breaks generated, DNA double strand break (DSB) is the most deleterious one. DNA damage response (DDR) is initiated when DSBs are detected, leading to DNA break repair by non-homologous end joining (NHEJ). The process is critically important for the generation of diversity for foreign antigens; and failure to exert DNA repair leads to immunodeficiency such as severe combined immunodeficiency and hyper-IgM syndrome...
May 26, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28550284/multiple-viral-infections-in-agaricus-bisporus-characterisation-of-18-unique-rna-viruses-and-8-orfans-identified-by-deep-sequencing
#8
Gregory Deakin, Edward Dobbs, Julie M Bennett, Ian M Jones, Helen M Grogan, Kerry S Burton
Thirty unique non-host RNAs were sequenced in the cultivated fungus, Agaricus bisporus, comprising 18 viruses each encoding an RdRp domain with an additional 8 ORFans (non-host RNAs with no similarity to known sequences). Two viruses were multipartite with component RNAs showing correlative abundances and common 3' motifs. The viruses, all positive sense single-stranded, were classified into diverse orders/families. Multiple infections of Agaricus may represent a diverse, dynamic and interactive viral ecosystem with sequence variability ranging over 2 orders of magnitude and evidence of recombination, horizontal gene transfer and variable fragment numbers...
May 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28550205/a-novel-%C3%AE-9-integrin-ligand-xcl1-lymphotactin-is-involved-in-the-development-of-murine-models-of-autoimmune-diseases
#9
Naoki Matsumoto, Shigeyuki Kon, Takuya Nakatsuru, Tomoe Miyashita, Kyosuke Inui, Kodai Saitoh, Yuichi Kitai, Ryuta Muromoto, Jun-Ichi Kashiwakura, Toshimitsu Uede, Tadashi Matsuda
The integrin α9β1 is a key receptor involved in the development of autoimmune diseases. However, the detailed mechanism for the association of α9β1 integrin with its ligands remains unclear. In this study, we introduce XCL1/lymphotactin, a member of the chemokine family, as a novel ligand for α9 integrin. Using α9 integrin-overexpressing NIH3T3 cells and endogenously α9 integrin-expressing human rhabdomyosarcoma cells, the interaction between XCL1 and α9 integrin was confirmed by pull-down assays. XCL1 enhanced α9 integrin-dependent cell migration of these cells, thus acting on α9 integrin as a chemoattractant...
May 26, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28550064/transient-silencing-of-dna-repair-genes-improves-targeted-gene-integration-in-the-filamentous-fungus-trichoderma-reesei
#10
Pak Yang Chum, Georg Schmidt, Markku Saloheimo, Christopher P Landowski
Trichoderma reesei is a filamentous fungus that is used world-wide to produce industrial enzymes. Industrial strains have traditionally been created though systematic strain improvement by mutagenesis and screening approaches. It is also desirable to specifically manipulate genes of the organism to further improve and modify the strain. Targeted integration in filamentous fungi is typically hampered by very low frequencies of homologous recombination. To address this limitation we have developed a simple transient method for silencing genes in T...
May 26, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28549991/pancreatic-derived-factor-impaired-glucagon-like-peptide-1-production-from-glutag-enterendorine-l-cell-line-and-intestines
#11
Fenghua Lai, Yan Chen, Huimei Lin, Xuelan Wang, Xiaonan Zhu, Yanbing Li, Haipeng Xiao, Xiaopei Cao
PURPOSE: Pancreatic-derived factor (PANDER) is a pancreatic islet-specific cytokine that co-secretes with insulin. However, its biological function remains largely unknown. We have recently shown that the intestine might be its novel target tissue. The aim of this study was to clarify whether PANDER impacts the production of glucagon-like peptide-1 (GLP-1). METHODS: We treated GLUTag cells from the mouse intestine L cell line with recombinant PANDER protein and hepatic overexpression of PANDER in an obese murine model...
May 23, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28549901/degradation-of-proteoglycan-4-lubricin-by-cathepsin-s-potential-mechanism-for-diminished-ocular-surface-lubrication-in-sj%C3%A3-gren-s-syndrome
#12
Suresh C Regmi, Michael L Samsom, Miriam Heynen, Gregory D Jay, Benjamin D Sullivan, Sruthi Srinivasan, Barbara Caffery, Lyndon Jones, Tannin A Schmidt
Sjögren's syndrome (SS) is an autoimmune disease affecting the lacrimal and salivary glands with hallmark clinical symptoms of dry eye and dry mouth. Recently, markedly increased cathepsin S (CTSS) activity has been observed in the tears of SS patients. Proteoglycan 4 (PRG4), also known as lubricin, is an effective boundary lubricant that is naturally present on the ocular surface. While PRG4 is susceptible to proteolytic digestion, the potential effect of CTSS on PRG4 remains unknown. The objective of this study was to assess the ability of CTSS to enzymatically degrade purified PRG4, and PRG4 naturally present in human tears, and alter ocular surface boundary lubricating properties...
May 23, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28549814/microbial-phytase-impact-of-advances-in-genetic-engineering-in-revolutionizing-its-properties-and-applications
#13
REVIEW
Mrudula Vasudevan Ushasree, Krishna Shyam, Jalaja Vidya, Ashok Pandey
Phytases are enzymes that increase the availability of phosphorous in monogastric diet and reduces the anti-nutrition effect of phytate. This review highlights contributions of recombinant technology to phytase research during the last decade with specific emphasis on new generation phytases. Application of modern molecular tools and genetic engineering have aided the discovery of novel phytase genes, facilitated its commercial production and expanded its applications. In future, by adopting most recent gene improvement techniques, more efficient next generation phytases can be developed for specific applications...
May 15, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28549772/codon-optimized-rpgr-improves-stability-and-efficacy-of-aav8-gene-therapy-in-two-mouse-models-of-x-linked-retinitis-pigmentosa
#14
M Dominik Fischer, Michelle E McClements, Cristina Martinez-Fernandez de la Camara, Julia-Sophia Bellingrath, Daniyar Dauletbekov, Simon C Ramsden, Doron G Hickey, Alun R Barnard, Robert E MacLaren
X-linked retinitis pigmentosa (XLRP) is generally a severe form of retinitis pigmentosa, a neurodegenerative, blinding disorder of the retina. 70% of XLRP cases are due to mutations in the retina-specific isoform of the gene encoding retinitis pigmentosa GTPase regulator (RPGR(ORF15)). Despite successful RPGR(ORF15) gene replacement with adeno-associated viral (AAV) vectors being established in a number of animal models of XLRP, progression to human trials has not yet been possible. The inherent sequence instability in the purine-rich region of RPGR(ORF15) (which contains highly repetitive nucleotide sequences) leads to unpredictable recombination errors during viral vector cloning...
May 24, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28549690/albumin-binding-domain-from-streptococcus-zooepidemicus-protein-zag-as-a-novel-strategy-to-improve-the-half-life-of-therapeutic-proteins
#15
Cátia Cantante, Sara Lourenço, Maurício Morais, João Leandro, Lurdes Gano, Nuno Silva, Paula Leandro, Mónica Serrano, Adriano O Henriques, Ana Andre, Catarina Cunha-Santos, Carlos Fontes, João D G Correia, Frederico Aires-da-Silva, Joao Goncalves
Recombinant antibody fragments belong to the promising class of biopharmaceuticals with high potential for future therapeutic applications. However, due to their small size they are rapidly cleared from circulation. Binding to serum proteins can be an effective approach to improve pharmacokinetic properties of short half-life molecules. Herein, we have investigated the Zag albumin-binding domain (ABD) derived from Streptococcus zooepidemicus as a novel strategy to improve the pharmacokinetic properties of therapeutic molecules...
May 23, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28549400/bemfola-%C3%A2-fixed-dose-pens-potentially-reduce-drug-wastage-and-associated-costs-of-infertility-treatment
#16
Graham Foxon, Paul Mitchell, Nikki Turner, Anne McConnell, Helen Kendrew, Julian Jenkins
Bemfola(®) is a recombinant follicle-stimulating hormone (FSH) used during infertility treatment. One main differentiator between FSH products is their delivery device; consisting of multi-dose pens (Gonal-f(®)), vials or multi-dose preparations (Menopur(®)), or adjustable daily disposable dose pens (Bemfola(®)). To determine the potential impact of delivery device on drug wastage during infertility treatment this study retrospectively analysed Gonal-f(®) and Menopur(®) prescription and usage data from five UK clinics...
May 26, 2017: Human Fertility: Journal of the British Fertility Society
https://www.readbyqxmd.com/read/28549265/facile-screening-of-potential-xenoestrogens-by-an-estrogen-receptor-based-reusable-optical-biosensor
#17
Lanhua Liu, Xiaohong Zhou, Yun Lu, Didi Shan, Bi Xu, Miao He, Hanchang Shi, Yi Qian
The apparent increase in hormone-induced cancers and disorders of the reproductive tract has led to a growing demand for new technologies capable of screening xenoestrogens. We reported an estrogen receptor (ER)-based reusable fiber biosensor for facile screening estrogenic compounds in environment. The bioassay is based on the competition of xenoestrogens with 17β-estradiol (E2) for binding to the recombinant receptor of human estrogen receptor α (hERα) protein, leaving E2 free to bind to fluorophore-labeled anti-E2 monoclonal antibody...
May 18, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28549259/purinergic-2x7-receptor-activation-regulates-wnt-signaling-in-human-mandibular-derived-osteoblasts
#18
Pimrumpai Rochanakit Sindhavajiva, Panunn Sastravaha, Mansuang Arksornnukit, Prasit Pavasant
OBJECTIVE: Purinergic 2X7 receptor (P2X7R) activation modulates in vitro mineralization by primary rat and human osteoblasts. However, the detailed mechanism of how P2X7R activation affects primary human osteoblasts remains unclear. The aim of this study was to investigate the effect of P2X7R activation on human mandibular-derived osteoblast (hMOB) differentiation. DESIGN: Primary human osteoblasts were obtained from non-pathologic mandibular bone from healthy patients...
May 18, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28549257/human-somatic-cells-deficient-for-rad52-are-impaired-for-viral-integration-and-compromised-for-most-aspects-of-homology-directed-repair
#19
Yinan Kan, Nizar N Batada, Eric A Hendrickson
Homology-directed repair (HDR) maintains genomic integrity by eliminating lesions such as DNA double-strand breaks (DSBs), interstrand crosslinks (ICLs) and stalled replication forks and thus a deficiency in HDR is associated with genomic instability and cancer predisposition. The mechanism of HDR is best understood and most rigorously characterized in yeast. The inactivation of the fungal radiation sensitive 52 (RAD52) gene, which has both recombination mediator and single-strand annealing (SSA) activities in vitro, leads to severe HDR defects in vivo...
May 10, 2017: DNA Repair
https://www.readbyqxmd.com/read/28549184/coiled-coil-interactions-mediate-serine-integrase-directionality
#20
Kushol Gupta, Robert Sharp, Jimmy B Yuan, Huiguang Li, Gregory D Van Duyne
Serine integrases are bacteriophage enzymes that carry out site-specific integration and excision of their viral genomes. The integration reaction is highly directional; recombination between the phage attachment site attP and the host attachment site attB to form the hybrid sites attL and attR is essentially irreversible. In a recent model, extended coiled-coil (CC) domains in the integrase subunits are proposed to interact in a way that favors the attPxattB reaction but inhibits the attLxattR reaction. Here, we show for the Listeria innocua integrase (LI Int) system that the CC domain promotes self-interaction in isolated Int and when Int is bound to attachment sites...
May 26, 2017: Nucleic Acids Research
keyword
keyword
41564
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"