PubMed Journals Articles About "Construction Novel Phage Display Antibody Library Against Fasciola" RSS

11:52 EDT 22nd July 2019 | BioPortfolio

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Showing "Construction novel phage display antibody library against Fasciola" PubMed Articles 1–25 of 5,300+

Effect of "ribosome engineering" on the transcription level and production of S. albus indigenous secondary metabolites.

Significant resources are invested into efforts to improve the production yields of natural products from Actinobacteria, a well-recognized source of leads for several industries, most notably pharmaceutical one. Introduction of changes into genes for ribosomal protein S12 (rpsL) and/or 16S rRNA methylation (rsmG) is one of traditional approaches (referred to as ribosomal engineering) towards actinobacterial strain improvement. Yet, true potential of ribosome engineering remains unknown as it is currently c...

Effects of PDE4 gene polymorphisms on efficacy and adverse drug events of ritodrine therapy in preterm labor patients: a prospective observational study.

Phosphodiesterase (PDE) terminates the signaling pathway of myometrial relaxation by degradating cAMP to the inactive 5'-AMP. The PDE4 family is one of the most predominant PDE families that display high affinity to cAMP. The objective of this study was to evaluate the effects of PDE4 gene polymorphisms on tocolytic effects and adverse drug events (ADEs) of ritodrine therapy in patients with preterm labor.

Multivariate analysis of metabolic parameters and optimization of antibody production using high cell density hybridoma in hollow fiber bioreactors.

The relationships of manipulation of culture temperature and medium circulation rate on the metabolic parameters were regressed by multiple linear regression analysis in hollow fiber bioreactors (HFB).

Residual inflammatory risk in coronary heart disease: incidence of elevated high-sensitive CRP in a real-world cohort.

Inflammation drives atherosclerosis and its complications. Anti-inflammatory therapy with interleukin 1 beta (IL-1β) antibody reduces cardiovascular events in patients with elevated high-sensitive C-reactive protein (hsCRP). This study aims to identify the share of patients with coronary heart disease (CHD) and residual inflammation who may benefit from anti-inflammatory therapy.

Visual detection of the prostate specific antigen via a sandwich immunoassay and by using a superwettable chip coated with pH-responsive silica nanoparticles.

A pH-responsive superwettable chip is described whose surface can switch between superhydrophobic and superhydrophilic. It can be used for the visual detection of the prostate specific antigen (PSA) based on contact angle readout. Magnetic beads were modified with primary antibody against PSA. After immunobinding, gold nanoparticles loaded with secondary antibody labeled with glucose oxidase is added. On addition of glucose, gluconic acid is formed which causes a drop in the local pH value. This results in ...

A novel CDK-2 homolog identified in lamprey, Lampetra japonica, with roles in apoptosis.

CDK-2, a member of the cyclin-dependent kinase family, plays an important role in many cell processes, such as cell cycle regulation, cell growth and differentiation, and cell apoptosis. Lampreys belong to the most primitive vertebrates, and there is no report about the CDK-2 gene in lampreys at present. In this study, a CDK-2-like gene sequence and deduced amino acid sequence were identified in Japanese lamprey (Lampetra japonica, L. japonica). The CDK-2-like gene has about 80% similarity with its homologs...

Long-term survival in patients with recurrent glioblastoma treated with bevacizumab: a multicentric retrospective study.

Recurrence of glioblastoma (GB) occurs in most patients after standard concomitant temozolomide-based radiochemotherapy (CTRC). Bevacizumab (BV), an anti-VEGF antibody, has an effect on progression-free survival (PFS) but not on overall survival (OS). However, a small part of the patients experience a survival, longer than expected. This retrospective study aims to characterize long responder (LR) patients treated with BV for a first or second GBM recurrence.

Preparation of an anti-Isoprocarb monoclonal antibody and its application in developing an immunochromatographic strip assay.

In this study, a carboxyl group was introduced into the isoprocarb molecule to obtain an isoprocarb hapten, which was then coupled with a protein to obtain an artificial antigen. Three monoclonal antibody cell lines, 1D11, 6E6 and 1B5, were finally obtained by mouse immunization, cell fusion, and subcloning, and the antibody produced by cell line 1B5 had the best affinity and sensitivity. The monoclonal antibody was highly sensitive and specific for isoprocarb, with an IC of 2.09 ng/mL and a cross-reactivit...

High specificity of widely used phospho-tau antibodies validated using a quantitative whole-cell based assay.

Antibodies raised against defined phosphorylation sites of the microtubule-associated protein tau are widely used in scientific research and being applied in clinical assays. However, recent studies have revealed an alarming degree of non-specific binding found in these antibodies. In order to quantify and compare the specificity phospho-tau antibodies and other post-translational modification site-specific antibodies in general, a measure of specificity is urgently needed. Here we report a robust flow cyto...

Stakeholder perceptions of smart infusion pumps and drug library updates: A multisite, interdisciplinary study.

Results of a questionnaire-based study to evaluate smart infusion pump end users' perceptions and understanding of the drug library update process are reported.

The diverse structural landscape of quadruplexes.

G-quadruplexes are canonical secondary structures formed in G-rich sequences in DNA and RNA. Considerable research over the past three decades has led to in-depth insight into these unusual structures in DNA. Since the more recent exploration into RNA G-quadruplexes, such structures have demonstrated their in cellulo existence, function and roles in pathology. In comparison to Watson-Crick-based secondary structures, most G-quadruplexes display highly redundant structural characteristics. However, numerous ...

MiR-183 delivery attenuates murine lupus nephritis-related injuries via targeting mTOR.

MicroRNAs (miRNAs) play a vital role in the occurrence and development of many human diseases, including systemic lupus erythematosus (SLE). SLE is an autoimmune disease characterized by the production of autoantibodies against nuclear antigens and multiorgan involvement. Study of miRNAs involved in SLE provides new insights into the pathogenesis of SLE and might lead to the identification of new therapeutic interventions. The aim of this study was to investigate the effect of miR-183 injection on the progr...

Targeting specific membranes with an azide derivative of the pore-forming peptide ceratotoxin A.

Pore-forming antimicrobial peptides (AMPs) are attracting interest as cytolytic antibiotics and drug delivery agents with potential use for targeting cancer cells or multidrug-resistant pathogens. Ceratotoxin A (CtxA) is an insect-derived cytolytic AMP with 36 amino acids that is thought to protect the eggs of the medfly Ceratitis capitata against pathogens. Single channel recordings using planar lipid bilayers have shown that CtxA forms pores with well-defined conductance states resembling those of alameth...

First evidence of protective effects on stroke recovery and post-stroke depression induced by sortilin-derived peptides.

Post-stroke depression (PSD) is the most common mood disorder following stroke with high relevance for outcome and survival of patients. The TREK-1 channel represents a crucial target in the pathogenesis of stroke and depression. Spadin and its short analog mini-spadin were reported to display potent antidepressant properties. We investigated the therapeutic effects of mini-spadin in a mouse model of focal ischemia and PSD. To activate TREK-1 and induce neuroprotection a single low dose of mini-spadin (0.03...

Heterophile antibody interference affecting multiple Roche immunoassays: A case study.

Analysis of many clinically important analytes is dependent on antibody-based assays. However, depending on the design, these assays are vulnerable to interference from endogenous molecules including circulating antibodies and free biotin. In this case report, we describe a patient whose laboratory findings from immunoassay based methodologies, are inconsistent with the clinical presentation.

Decentralized Care with Generic Direct-Acting Antivirals in the Management of Chronic Hepatitis C in a Public Health Care Setting.

The prevalence of anti-hepatitis C virus antibody in Punjab, India is 3.6% with an estimated 728,000 persons with viremic chronic hepatitis C (CHC). The Mukh-Mantri Punjab Hepatitis C Relief Fund, launched on 18 June 2016, provides no-cost generic direct-acting antivirals (DAAs) with sofosbuvir+ledipasvir±ribavirin or sofosbuvir+daclatasvir±ribavirin with the goal to eliminate CHC from Punjab. We assessed the safety and efficacy of decentralized treatment of CHC in a public health care setting.

Humanized anti-CD271 monoclonal antibody exerts an anti-tumor effect by depleting cancer stem cells.

CD271, known as a neurotrophin receptor, is expressed in various cancers such as hypopharyngeal cancer (HPC) and melanoma. We recently reported that CD271 is a cancer-stem-cell biomarker of HPC, and that its expression is essential for cancer-cell proliferation and is correlated with a poor prognosis in this disease. Here, to develop a therapeutic antibody to CD271, we established a humanized anti-CD271 monoclonal antibody (hCD271mAb). hCD271mAb bound to the cysteine-rich domain 1 (CRD1) of human CD271 with...

An FDA oncology analysis of toxicities associated with PBD-containing antibody-drug conjugates.

With a new generation of antibody-drug conjugates (ADCs) that contain a drug-to-antibody ratio (DAR) of 2, the question remains whether advances in technology have resulted in more stable and tumor-specific ADCs. These ADCs are anticipated to cause minimal systemic exposures of payloads, with toxicities being evident mainly at tumor sites. We examined 15 ADCs with PBD-dimer payloads and a DAR of 2 and concluded that dose limiting toxicities in animals and in humans are generally related to the payload. Both...

Assessment of antibiotic resistance in bacteriophage-insensitive Klebsiella pneumoniae.

This study was design to evaluate the physiological properties of bacteriophage-insensitive Klebsiella pneumoniae (BIKP) mutants in association with the antibiotic cross-resistance, β-lactamase activity, and gene expression. Klebsiella pneumoniae ATCC 23357(KP), ciprofloxacin-induced antibiotic-resistant K. pneumoniae ATCC 23357 (KP), and clinically isolated antibiotic-resistant K. pneumoniae 10263 (KP) were used to isolate BIKP mutants against KPB1, PBKP02, PBKP21, PBKP29, PBKP33, and PBKP35. PBKP35-induc...

An insight into the health-promoting effects of taxifolin (dihydroquercetin).

Taxifolin (3,5,7,3,4-pentahydroxy flavanone or dihydroquercetin) is a flavonoid commonly found in onion, milk thistle, French maritime pine bark and Douglas fir bark. It is also used in various commercial preparations like Legalon™, Pycnogenol, and Venoruton. This review focuses on taxifolin's biological activities and related molecular mechanisms. Published literatures were gathered from the scientific databases like PubMed, SciFinder, ScienceDirect, Wiley Online Library, Google Scholar, and Web of Scien...

Engineered ovalbumin-expressing regulatory T cells protect against anaphylaxis in ovalbumin-sensitized mice.

Allergy is a major public health concern, the main treatment for which is symptomatic relief with anti-inflammatory drugs. A key clinical challenge is to induce specific tolerance in order to control allergen-specific memory B and T cells, and specifically block effector cell responses. Our lab recently developed antigen-specific regulatory T-cell (Treg) therapies as a treatment for adverse responses. Recently, we created a chimeric antigen receptor (CAR) approach in which we engineered a target protein ant...

Synthetic analogues of marine cytotoxic jaspine B and its stereoisomers.

Synthetic analogues of the cytotoxic jaspine B and its stereochemical congeners have become an attractive target in the synthetic organic community owing to the search for novel therapeutic candidates with more potent anticancer activity, as cancer is the second leading cause of death worldwide. This review article provides insights into the different approaches and strategies available in the literature for the construction of jaspine B-related compounds.

Variations on a scaffold - Novel GABA receptor modulators.

Allosteric ligands of GABA receptors exist in many different chemotypes owing to their great usefulness as therapeutics, with benzodiazepines being among the best known examples. Many allosteric binding sites have been described, among them a site at the extracellular interface between the alpha principal face and the beta complementary face (α+/β-). Pyrazoloquinolinones have been shown to bind at α+/β-binding sites of GABA receptors, exerting chiefly positive allosteric modulation at this location. In ...

Responses of water quality and phytoplankton assemblages to remediation projects in two hypereutrophic tributaries of Chaohu Lake.

Water shortages and the presence of point and diffuse source pollution have caused a serious deterioration in water quality in two tributaries (the Tangxi River and Shiwuli River) of Chaohu Lake, China. To reduce nutrient pollution and suppress harmful algal blooms (HABs), hard engineering and ecological remediation projects were implemented. A post-project investigation from 2013 to 2016 was carried out to evaluate the outcome of the remediation projects by monitoring the seasonal and spatial variations in...

Ecological Risk Assessment (ERA) of pesticides from freshwater ecosystems in the Pampas region of Argentina: Legacy and current use chemicals contribution.

Agricultural production in the Pampas region is one of the most important economic activities in Argentina. However, the possible environmental effects related to the growth of this activity in the last years have not been studied enough. Particularly, the effects of pesticides mixtures are a topic of great concern both for society and regulatory authorities worldwide, given the possible additive and synergistic relationships between these chemicals and their possible effects on aquatic biota. Based on a co...

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