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https://www.readbyqxmd.com/read/28644688/intraosseous-administration-of-antidotes-a-systematic-review
#1
Audrée Elliott, Pierre-André Dubé, Amélie Cossette-Côté, Laura Patakfalvi, Eric Villeneuve, Martin Morris, Sophie Gosselin
CONTEXT: Intraosseous (IO) access is an established route of administration in resuscitation situations. Patients with serious poisoning presenting to the emergency department may require urgent antidote therapy. However, intravenous (IV) access is not always readily available. OBJECTIVE: This study reviews the current evidence for IO administration of antidotes that could be used in poisoning. The primary outcome was mortality as a surrogate of efficacy. Secondary outcomes included hemodynamic variables, electrocardiographic variables, neurological status, pharmacokinetics outcomes, and adverse effects as defined by each article...
June 23, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28644609/galnac-tyrosine-is-a-ligand-of-plant-lectins-antibodies-and-human-and-murine-macrophage-galactose-type-lectins
#2
Ruslan Gibadullin, David Wayne Farnsworth, Joseph J Barchi, Jeffrey C Gildersleeve
In 2011, a new type of protein O-glycosylation was discovered in which N-acetylgalactosamine is attached to the side chain of tyrosine (GalNAc-Tyr). While present on dozens of proteins, the biological roles of GalNAc-Tyr are unknown. To gain insight into this new type of modification, we synthesized a group of GalNAc-Tyr glycopeptides, constructed microarrays, and evaluated potential recognition of GalNAc-Tyr by a series of glycan-binding proteins. Through a series of >150 microarray experiments, we assessed binding properties of a variety of plant lectins, monoclonal antibodies, and endogenous lectins...
June 23, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28643867/transfusion-transmitted-cmv-infection%C3%A2-%C3%A2-current-knowledge-and-future-perspectives
#3
REVIEW
M Ziemann, T Thiele
Transmission of human cytomegalovirus (CMV) via transfusion (TT-CMV) may still occur and remains a challenge in the treatment of immunocompromised CMV-seronegative patients, e.g. after stem cell transplantation, and for low birthweight infants. Measures to reduce the risk of TT-CMV have been evaluated in clinical studies, including leucocyte depletion of cellular blood products and/or the selection of CMV-IgG-negative donations. Studies in large blood donor cohorts indicate that donations from newly CMV-IgG-positive donors should bear the highest risk for transmitting CMV infections because they contain the highest levels of CMV-DNA, and early CMV antibodies cannot neutralise CMV...
June 23, 2017: Transfusion Medicine
https://www.readbyqxmd.com/read/28642239/a-novel-single-domain-antibody-against-von-willebrand-factor-a1-domain-resolves-leukocyte-recruitment-and-vascular-leakage-during-inflammation
#4
Gabriel Aymé, Frédéric Adam, Paulette Legendre, Amine Bazaa, Valérie Proulle, Cécile V Denis, Olivier D Christophe, Peter J Lenting
OBJECTIVE: von Willebrand factor (VWF) is crucial to hemostasis, but also plays a role in inflammatory processes. Unfortunately, no proper monoclonal antibodies to study VWF function in mice are currently available. We therefore aimed to generate single-domain antibodies (sdAbs) recognizing murine VWF and blocking its function in vivo. APPROACH AND RESULTS: Llama-derived sdAbs recognizing both human and murine VWF were isolated via phage display technology. One of them (designated KB-VWF-006) recognized the VWF A1 domain with picomolar affinity...
June 22, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28641561/induction-of-humoral-and-cellular-immune-responses-in-mice-by-multiepitope-vaccines-composing-of-both-t-and-b-lymphocyte-epitopes-of-mage-a3which-are-recombined-into-hbcag
#5
Qingxin Chen, Wenshu Li, Pengfei Wang, Huanyi Shao, Yujie Ding, Wenhuan Wang, Danwei Cen, Yiqi Cai, Xiangyang Xue, Lifang Zhang, Guanbao Zhu
MAGE-A3 is highly expressed in many kinds of malignant diseases, and considered to be an ideal candidate for anti-tumor vaccine. To improve the immunogenicity of epitopes of MAGE-A3, hepatitis B virus core antigen (HBcAg) was used as an immune-carrier by insertion epitopes at HBcAg major immunodominant region (HBcAg(MIR)). In present study, we designed three kinds of MAGE-A3 multiepitopes containing T and B-cell dominant epitope-rich peptides, and constructed three recombinant chimeras of HBcAg(MIR)/MAGE-A3(EPI-1), HBcAg(MIR)/MAGE-A3(EPI-2), and HBcAg(MIR)/MAGE-A3(EPI-3) with prokaryotic codon optimization...
June 20, 2017: Protein and Peptide Letters
https://www.readbyqxmd.com/read/28640745/the-amino-terminal-subdomain-of-glycoprotein-gc-of-schmallenberg-virus-disulfide-bonding-and-structural-determinants-of-neutralization
#6
Gleyder Roman-Sosa, Axel Karger, Franziska Kraatz, Andrea Aebischer, Kerstin Wernike, Pavlo Maksimov, Christopher H Lillig, Ilona Reimann, Emiliana Brocchi, Markus Keller, Martin Beer
Orthobunyaviruses are enveloped viruses that can cause human and animal diseases. A novel and major member is the Schmallenberg virus (SBV), the etiological agent of an emerging disease of ruminants that has been spreading all over Europe since 2011. The glycoproteins Gn and Gc of orthobunyaviruses mediate the viral entry, and specifically Gc is a major target for the humoral immune response. For example, the N terminal subdomain of the SBV glycoprotein Gc is targeted by neutralizing monoclonal antibodies that recognize conformational epitopes...
June 22, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28639598/haematological-profile-of-patients-with-mixed-phenotype-acute-leukaemia-from-a-tertiary-care-centre-of-north-india
#7
Manupriya Sharma, Man Updesh Singh Sachdeva, Parveen Bose, Neelam Varma, Subhash Varma, R K Marwaha, Pankaj Malhotra
BACKGROUND & OBJECTIVES: Mixed-phenotype acute leukaemia (MPAL) is a rare neoplasm with no definite treatment protocols and a distinctly poor outcome. Advancement in polychromatic flow cytometry has made its identification easier. This prospective study was designed to identify cases of MPAL and study their clinical presentation and haematological profile in a tertiary care hospital in north India. METHODS: Ethylenediaminetetraacetic acid (EDTA)-anticoagulated bone marrow aspirate samples of patients diagnosed as acute leukaemia (AL) on the basis of morphology were utilized for immunophenotyping...
February 2017: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28639381/elastin-like-polypeptide-switches-a-design-strategy-to-detect-multimeric-proteins
#8
Jugal Dhandhukia, Dab Brill, Aida Kouhi, Martha Pastuszka, John Andrew MacKay
Elastin-Like Polypeptides (ELPs) reversibly phase separate in response to changes in temperature, pressure, concentration, pH, and ionic species. While powerful triggers, biological microenvironments present a multitude of more specific biological cues, such as antibodies, cytokines, and cell-surface receptors. To develop better biosensors and bioresponsive drug carriers, rational strategies are required to sense and respond to these target proteins. We recently reported that non-covalent association of two ELP fusion proteins to a 'chemical inducer of dimerization' small molecule (1...
June 22, 2017: Protein Science: a Publication of the Protein Society
https://www.readbyqxmd.com/read/28639134/kifc1-and-myosin-va-two-motors-for-acrosomal-biogenesis-and-nuclear-shaping-during-spermiogenesis-of-portunus-trituberculatus
#9
Dan-Dan Ma, Meng-Ying Pan, Cong-Cong Hou, Fu-Qing Tan, Wan-Xi Yang
To investigate the molecular mechanisms underlying the spermiogenesis of the swimming crab Portunus trituberculatus, full lengths of motor proteins KIFC1 and myosin Va were cloned by rapid-amplification of cDNA ends from P. trituberculatus testes cDNA, and their respective probes and specific antibodies were used to track their localization during sperm maturation. Antisense probes were designed from the gene sequences and used to detect the mRNA levels of each gene. According to the results of fluorescence in situ hybridization (FISH), the transcription of kifc1 and myosin Va began at the mid-stage of spermatids, with the kifc1 mRNA being most active at the location where the acrosome cap was formed and the myosin Va was more concentrated in the acrosome complex...
June 21, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28639118/pharmacokinetics-and-immunogenicity-of-t0001-a-newly-developed-anti-tnf%C3%AE-fusion-protein-in-healthy-volunteers
#10
Yitong Wang, Chang Liu, Shi Chen, Wei Wang, Lihou Dong, Qian Wang, Yan Wang, Libo Zhao, Yannan Zang, Zhenwei Xie, Yang Liu, Yanjun Liu, Haifeng Song, Zhanguo Li, Yi Fang
PURPOSE: T0001 was the first mutant of recombinant fusion protein of human tumor necrosis factor receptor and Fc fragment (rhTNFR:Fc) based on etanercept on a global scale. This study was carried out to investigate the pharmacokinetics (PK) and immunogenicity of T0001 in healthy Chinese volunteers. METHODS: This study was randomized, with a single ascending dose, and the first-in-human clinical trial of T0001. Healthy Chinese volunteers (n = 56; male: female = 1:1) were randomly assigned to receive a single subcutaneous (sc) injection of 10, 20, 35, 50, 65 or 75 mg of T0001...
June 21, 2017: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28638777/heterobifunctional-dyes-highly-fluorescent-linkers-based-on-cyanine-dyes
#11
Virginia Wycisk, Katharina Achazi, Ole Hirsch, Christian Kuehne, Jens Dernedde, Rainer Haag, Kai Licha
Herein, we present a new synthetic route to cyanine-based heterobifunctional dyes and their application as fluorescent linkers between polymers and biomolecules. The synthesized compounds, designed in the visible spectral range, are equipped with two different reactive groups for highly selective conjugation under physiological conditions. By applying indolenine precursors with functionalized benzenes, we achieved water-soluble asymmetric cyanine dyes bearing maleimido and N-hydroxysuccinimidyl functionalities in a three-step synthesis...
June 2017: ChemistryOpen
https://www.readbyqxmd.com/read/28638737/selective-activation-of-anti-cd73-mechanisms-in-control-of-primary-tumors-and-metastases
#12
Dipti Vijayan, Deborah S Barkauskas, Kimberley Stannard, Erin Sult, Rebecca Buonpane, Kazuyoshi Takeda, Michele W L Teng, Kris Sachsenmeier, Carl Hay, Mark J Smyth
The emerging role for CD73 in driving cancer growth and metastasis has presented opportunities to develop anti-CD73 monoclonal antibodies (mAbs) in the treatment of human cancers. Blockade of CD73 by antagonistic CD73 mAbs ameliorates tumor growth and metastasis via the inhibition of enzymatic and non-enzymatic CD73 pathways. In this study, we investigated whether Fc-receptor cross-linking represented a non-redundant mechanism by which anti-CD73 mAbs exert potent suppression of solid tumors and metastases. We engineered four anti-CD73 mAbs, each different in their ability to modulate CD73 enzymatic function and bind Fc receptors...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28638106/protective-efficacy-of-the-trivalent-pseudomonas-aeruginosa-vaccine-candidate-pcrv-opri-hcp1-in-murine-pneumonia-and-burn-models
#13
Feng Yang, Jiang Gu, Liuyang Yang, Chen Gao, Haiming Jing, Ying Wang, Hao Zeng, Quanming Zou, Fenglin Lv, Jinyong Zhang
Pseudomonas aeruginosa is a formidable pathogen that is responsible for a diverse spectrum of human infectious diseases, resulting in considerable annual mortality rates. Because of biofilm formation and its ability of rapidly acquires of resistance to many antibiotics, P. aeruginosa related infections are difficult to treat, and therefore, developing an effective vaccine is the most promising method for combating infection. In the present study, we designed a novel trivalent vaccine, PcrV28-294-OprI25-83-Hcp11-162 (POH), and evaluated its protective efficacy in murine pneumonia and burn models...
June 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28637805/conjugation-of-pspa4pro-with-capsular-streptococcus-pneumoniae-polysaccharide-serotype-14-does-not-reduce-the-induction-of-cross-reactive-antibodies
#14
Míriam A da Silva, Thiago R Converso, Viviane M Gonçalves, Luciana C C Leite, Martha M Tanizaki, Giovana C Barazzone
Current pneumococcal vaccines are composed of bacterial polysaccharides as antigens plain or conjugated to carrier proteins. While efficacious against vaccine serotypes, epidemiologic data shows increasing incidence of infections caused by non-vaccine serotypes of Streptococcus pneumoniae. The use of Pneumococcal surface protein A (PspA) as a carrier protein in a conjugate vaccine could help preventing serotype replacement by increasing vaccine coverage and reducing selective pressure of S. pneumoniae serotypes...
June 21, 2017: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/28637689/elevation-of-tp53-autoantibody-prior-to-ca125-in-preclinical-invasive-epithelial-ovarian-cancer
#15
Wei-Lei Yang, Aleksandra Gentry-Maharaj, Archana R Simmons, Andy Ryan, Evangelia O Fourkala, Zhen Lu, Keith A Baggerly, Yang Zhao, Karen Lu, David D L Bowtell, Ian Jacobs, Steven J Skates, Wei-Wu He, Usha Menon, Robert C Bast
Purpose: The TP53 tumor suppressor gene is mutated in >95% of high grade serous ovarian cancers. Detecting an autologous antibody response to TP53 might improve early detection. <p>Experimental design: An immunoassay was developed to measure TP53 autoantibody in sera from 378 cases of invasive epithelial ovarian cancer and in 944 age-matched healthy controls from the United States, Australia and the United Kingdom. Serial preclinical samples from cases and controls were also assayed from the UK Collaborative Trial of Ovarian Cancer Screening (UKCTOCS)...
June 21, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28637001/a-novel-method-to-generate-salmonella-typhi-ty21a-ghosts-exploiting-the-%C3%AE-phage-holin-endolysin-system
#16
Gayeon Won, Boram Kim, John Hwa Lee
Human typhoid fever caused by Salmonella Typhi still poses a severe global disease burden in developing countries despite the availability of commercial vaccines. In this study, we constructed a non-living S. Typhi Ty21a vaccine candidate by employing a lambda (λ) phage-derived holin-endolysin system to efficiently construct bacterial ghosts. The lysis plasmid pJHL464 harbors an R lysis cassette that is stringently regulated by dual promoters containing cI857/λPR and ParaBAD/araC components. The plasmid was introduced into an asd gene-deleted S...
June 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28636997/an-optimized-hmgb1-expressed-by-recombinant-rabies-virus-enhances-immunogenicity-through-activation-of-dendritic-cells-in-mice
#17
Zhao Wang, Qian Liang, Yajing Zhang, Jie Yang, Mingming Li, Kunlun Wang, Min Cui, Huanchun Chen, Zhen F Fu, Ling Zhao, Ming Zhou
Rabies remains an important public health threat, killing approximately 59,000 people worldwide annually, most of which are from the developing countries of Africa and Asia where dog rabies are endemic. Therefore, developing an affordable and efficacious vaccine for dog-mediated rabies control is needful in these countries. Our previous studies indicated that over-expression of granulocyte-macrophage colony stimulating factor (GM-CSF) or macrophage inflammatory protein-1 (MIP-1α or CCL3) by recombinant rabies virus (rRABV) could enhance the immunogenicity by activating dendritic cells (DCs)...
June 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28636537/metabolic-pathway-for-the-universal-fluorescent-recognition-of-tumor-cells
#18
Ana Fernandez-Carrascal, Manuel Garcia-Algar, Moritz Nazarenus, Alicia Torres-Nuñez, Luca Guerrini, Neus Feliu, Wolfgang J Parak, Eduardo Garcia-Rico, Ramon A Alvarez-Puebla
Quantification of circulating tumor cells (CTCs) in blood samples from cancer patients is a non-invasive approach to monitoring the status of the disease. Most of the methods proposed in the recent years are phenomenological and rely on the use of antibodies labelled with fluorophores, magnetic particles, or immobilized on surfaces to capture the CTCs. Herein, we designed and optimized a method that employs a glucose analogue labelled with a fluorophore which takes advantage of the different metabolic pathways of cancer cells to discern them from normal ones...
June 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28636463/optimization-of-an-anti-her2-nanobody-expression-using-the-taguchi-method
#19
Alireza Farasat, Fatemeh Rahbarizadeh, Davoud Ahmadvand, Fatemeh Yazdian
Despite being widely used in immunotherapy of cancer, whole antibodies are limited by several disadvantages. This has led to the advent of novel biomolecules such as nanobodies. Taguchi method is a statistical experimental design to study the effect of multiple variables in biological processes. In an effort to overexpress a recombinant anti-HER2 nanobody, we carried out a detailed study to find optimal condition of temperature, induction, culture media, vector and host strain, using Taguchi methodology. A total of 16 various experiments were designed...
June 21, 2017: Preparative Biochemistry & Biotechnology
https://www.readbyqxmd.com/read/28635517/a-primer-for-oncoimmunology-immunooncology
#20
Brad Bolon, Famke Aeffner
Oncoimmunology (or immunooncology) is a burgeoning specialty of precision ("personalized") medicine designed to heighten the antitumor response of the immune system against molecules expressed excessively or only by tumor cells. This focus is necessary, as cancers are polyclonal tissues comprised of antigenically heterogeneous cells, the exact composition of which is shaped by the balance between antitumor immunity and tumor-promoting inflammation. Key targets include enhancing immune system (especially T cell) reactivity, inhibiting immune checkpoints, and promoting tumor cytolysis...
January 1, 2017: Toxicologic Pathology
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