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antibody MM

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https://www.readbyqxmd.com/read/29909199/direct-label-free-protein-detection-in-high-ionic-strength-solution-and-human-plasma-using-dual-gate-nanoribbon-based-ion-sensitive-field-effect-transistor-biosensor
#1
Shenhui Ma, Xin Li, Yi-Kuen Lee, Anping Zhang
We report on direct label-free protein detection in high ionic strength solution and human plasma by a dual-gate nanoribbon-based ion-sensitive field-effect transistor (NR-ISFET) biosensor system with excellent sensitivity and specificity in both solution-gate (SG) and dual-gate (DG) modes. Compared with previously reported results, the NR-ISFET biosensor enables selective prostate specific antigen (PSA) detection based on antibody-antigen binding in broader detection range with lower LOD. For the first time, real-time specific detection of PSA of 10 pM to 1 μM in 100 mM phosphate buffer (PB) was demonstrated by conductance measurements using the polyethylene glycol (PEG)-modified NR-ISFET biosensors in DG mode with the back-gate bias (VBG ) of 20 V...
June 1, 2018: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29906391/enhanced-rotator-cuff-repair-using-platelet-rich-plasma-adsorbed-on-branched-poly-ester-urea-s
#2
Erin P Childers, Nathan Z Dreger, Alex B Ellenberger, Mary Beth Wandel, Karen Domino, Yanyi Xu, Derek Luong, Jiayi Yu, David Orsini, Robert H Bell, Christopher Premanandan, Stephen D Fening, Matthew L Becker
Platelet-rich plasma (PRP) is a clinically relevant source of growth factors used commonly by surgeons. The clinical efficacy of PRP use as reported in the literature is widely variable which is likely attributed to poorly defined retention time of PRP at the repair site. To overcome this limitation, branched poly(ester urea) (PEU) nanofibers were used to adsorb and retain PRP at the implant site in an acute rotator-cuff tear model in rats. The adsorption of PRP to branched-PEU was characterized using quartz crystal microbalance (QCM) and immuno-protein assay...
June 15, 2018: Biomacromolecules
https://www.readbyqxmd.com/read/29899820/pre-clinical-validation-of-b-cell-maturation-antigen-bcma-as-a-target-for-t-cell-immunotherapy-of-multiple-myeloma
#3
De-Xiu Bu, Reshma Singh, Eugene E Choi, Marco Ruella, Selene Nunez-Cruz, Keith G Mansfield, Paul Bennett, Nathanial Barton, Qilong Wu, Jiquan Zhang, Yongqiang Wang, Lai Wei, Shawn Cogan, Tucker Ezell, Shree Joshi, Kellie J Latimer, Brian Granda, William R Tschantz, Regina M Young, Heather A Huet, Celeste J Richardson, Michael C Milone
Multiple myeloma has a continued need for more effective and durable therapies. B cell maturation antigen (BCMA), a plasma cell surface antigen and member of the tumor necrosis factor (TNF) receptor superfamily, is an attractive target for immunotherapy of multiple myeloma due to its high prevalence on malignant plasma cells. The current work details the pre-clinical evaluation of BCMA expression and development of a chimeric antigen receptor (CAR) targeting this antigen using a fully human single chain variable fragment (scFv)...
May 25, 2018: Oncotarget
https://www.readbyqxmd.com/read/29898177/pro-inflammatory-and-anti-inflammatory-cytokine-expression-in-post-treatment-apical-periodontitis
#4
Nilton Dessaune Neto, Mariana Teixeira Maneschy Porpino, Henrique Dos Santos Antunes, Renata Costa Val Rodrigues, Alejandro Ron Perez, Fábio Ramôa Pires, José Freitas Siqueira, Luciana Armada
OBJECTIVE: This study evaluated the expression of pro-inflammatory (IL-1β, IL-6, IFN-γ and TNF-α) and anti-inflammatory (IL-4 and TGF-β) cytokines in apical periodontitis lesions. Correlations between these cytokines and clinical and cone-beam computed tomographic (CBCT) data were also assessed. MATERIAL AND METHODS: Apical periodontitis lesions' data were obtained from 27 patients subjected to periradicular surgery. Specimens were processed for histopathologic and immunohistochemical analysis...
June 11, 2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29897777/computational-design-to-reduce-conformational-flexibility-and-aggregation-rates-of-an-antibody-fab-fragment
#5
Cheng Zhang, Maariyah Samad, Haoran Yu, Nesrine Chakroun, David Hilton, Paul A Dalby
Computationally-guided semi-rational design has significant potential for improving the aggregation kinetics of protein biopharmaceuticals. While improvement in the global conformational stability can stabilise proteins to aggregation under some conditions, previous studies suggest that such an approach is limited because thermal transition temperatures (Tm) and the fraction of protein unfolded (fT) tend to only correlate with aggregation kinetics where the protein is incubated at temperatures approaching the Tm...
June 13, 2018: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/29896250/diagnostic-value-of-detection-of-serum-%C3%AE-hcg-and-ct-igg-combined-with-transvaginal-ultrasonography-in-early-tubal-pregnancy
#6
Hongyan Xin, Wenlian Liu, Ping Li
The diagnostic value of detection of serum β-human chorionic gonadotropin (β-HCG) and Chlamydia trachomatis immunoglobulin G (CT-IgG) combined with transvaginal ultrasonography in early tubal pregnancy was investigated. A total of 55 patients with early tubal pregnancy were selected as the tubal pregnancy group, while 55 subjects of normal intrauterine pregnancy were enrolled as the intrauterine pregnancy group. Transvaginal ultrasonography and quantitative detection of serum β-HCG and CT-IgG were performed for all patients, and the clinical examination results were analyzed and compared...
July 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29894949/comparison-of-multivariate-data-analysis-techniques-to-improve-glucose-concentration-prediction-in-mammalian-cell-cultivations-by-raman-spectroscopy
#7
Bence Kozma, András Salgó, Szilveszter Gergely
In-situ Raman spectroscopy is frequently applied to monitor and even control the glucose concentration of monoclonal antibody producing mammalian cell cultivations. Previous studies used the PLSR algorithm only, however other multivariate algorithms were applied successfully for different protein production processes. In this study, four mammalian cell cultivation runs were followed with Raman spectroscopy and the spectra were analysed quantitatively and qualitatively as well. The PCA analysis showed that one of the most dominant factors in the Raman spectra were the concentration of glucose, which strongly correlated with the score values of the eighth principal component...
June 7, 2018: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29894852/a-compact-low-cost-quantitative-and-multiplexed-fluorescence-detection-platform-for-point-of-care-applications
#8
Uwadiae Obahiagbon, Joseph T Smith, Meilin Zhu, Benjamin A Katchman, Hany Arafa, Karen S Anderson, Jennifer M Blain Christen
An effective method of combating infectious diseases is the deployment of hand-held devices at the point-of-care (POC) for screening or self-monitoring applications. There is a need for very sensitive, low-cost and quantitative diagnostic devices. In this study, we present a low-cost, multiplexed fluorescence detection platform that has a high sensitivity and wide dynamic range. Our system features inexpensive 3 × 3 mm interference filters with a high stopband rejection, sharp transition edges, and greater than 90% transmission in the passband...
April 4, 2018: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29890944/detection-of-intracellular-igd-using-flow-cytometry-could-be-a-novel-and-supplementary-method-to-diagnose-igd-multiple-myeloma
#9
Wei Wang, Chun-Xia Zhang, Zhen-Ling Li, Ming Gong, Yi-Gai Ma
BACKGROUND: We examined whether detecting the heavy chain of cytoplasmic immunoglobulin D (IgD) by flow cytometry could be used as a supplemental method to diagnose IgD multiple myeloma (MM). METHODS: Bone marrow (BM) samples of thirty-five patients with MM were collected. Five of them were IgD MM, the rest of thirty were other subtypes of MM. Antibodies to four types of heavy chains of immunoglobulin (e.g., IgA, IgG, IgM, and IgD) were analyzed by flow cytometry in each patient's BM sample...
June 11, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29889283/in-vivo-cell-mediated-immune-hemagglutination-inhibition-response-hematological-and-biochemical-values-in-native-vs-exotic-chicken-breeds
#10
S P Yadav, T R Kannaki, R K Mahapatra, Chandan Paswan, T K Bhattacharya, S K Sarkar, R N Chatterjee
Birds (364) of both sexes, 11-wk-old, belonging to 2 native (Brown Nicobari and Ghagus) breeds and 1 exotic breed (Dahlem Red) were evaluated for cell-mediated immune response (CMI) by phytohemagglutinin-P (PHA-P), hemagglutination inhibition (HI) assay against Newcastle disease virus (NDV) antigen (LaSota stock virus), flow cytometric analysis of CD8+ cytotoxic T lymphocytes (CTLs), and hematology and biochemical assays. The cutaneous basophil hypersensitivity response PHA-P% increase in wattle thickness (mm) was highest in Ghagus (431...
June 8, 2018: Poultry Science
https://www.readbyqxmd.com/read/29887135/variably-protease-sensitive-prionopathy
#11
Silvio Notari, Brian S Appleby, Pierluigi Gambetti
Variably protease-sensitive prionopathy (VPSPr), originally identified in 2008, was further characterized and renamed in 2010. Thirty-seven cases of VPSPr have been reported to date, consistent with estimated prevalence of 0.7-1.7% of all sporadic prion diseases. The lack of gene mutations establishes VPSPr as a sporadic form of human prion diseases, along with sporadic Creutzfeldt-Jakob disease (sCJD) and sporadic fatal insomnia. Like sCJD, VPSPr affects patients harboring any of the three genotypes, MM, MV, and VV at the prion protein (PrP) gene polymorphic codon 129, with VPSPr VV accounting for 65% of all VPSPr cases...
2018: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/29885292/a-novel-enolase-from-taenia-solium-metacestodes-and-its-evaluation-as-an-immunodiagnostic-antigen-for-porcine-cysticercosis
#12
Reynaldo Ponce, Nancy León-Janampa, Robert H Gilman, Ruddy Liendo, Elisa Roncal, Sueline Luis, Stefany Quiñones-Garcia, Zach Silverstein, Hector H García, Armando Gonzales, Patricia Sheen, Mirko Zimic, Mónica Pajuelo
Cysticercosis is a worldwide parasitic disease of humans and pigs principally caused by infection with the larvae of the pork tapeworm Taenia solium. Through the use of the recently-made-available T. solium genome, we identified a gene within a novel 1448 bp ORF that theoretically encodes for a 433 amino acid-long protein and predicted to be an α-enolase closely related to enolases of other flatworms. Additional bioinformatic analyses revealed a putative plasminogen-binding region on this protein, suggesting a potential role for this protein in pathogenesis...
June 6, 2018: Experimental Parasitology
https://www.readbyqxmd.com/read/29884291/inhibition-of-interleukin-1-suppresses-angiotensin-ii-induced-aortic-inflammation-and-aneurysm-formation
#13
Kikuo Isoda, Koji Akita, Kenichi Kitamura, Yayoi Sato-Okabayashi, Tomoyasu Kadoguchi, Sarasa Isobe, Fumie Ohtomo, Motoaki Sano, Kazunori Shimada, Yoichiro Iwakura, Hiroyuki Daida
BACKGROUND: Angiotensin II (Ang II) activates components of the inflammatory cascade, which promotes hypertension and development of abdominal aortic aneurysm (AAA). This study aimed to elucidate the effects of an IL-1 receptor antagonist (IL-1Ra) and an anti-IL-1β antibody (01BSUR) on Ang II-induced AAA. METHODS AND RESULTS: Male wild-type (WT) and IL-1Ra-deficient (IL-1Ra- / - ) mice were infused with Ang II (1000 ng/kg/min) using subcutaneous osmotic pumps for 28 days...
June 5, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29882600/upconversion-nanoparticle-bioconjugates-characterized-by-capillary-electrophoresis
#14
Tereza Vaneckova, Kristyna Smerkova, Jan Zitka, David Hynek, Ondrej Zitka, Antonin Hlavacek, Frantisek Foret, Vojtech Adam, Marketa Vaculovicova
Upconversion nanoparticles (UCNPs) are an emerging class of optical materials with high potential in bioimaging due to practically no background signal and high penetration depth. Their excellent optical properties and easy surface functionalization make them perfect for conjugation with targeting ligands. In this work, capillary electrophoretic (CE) method with laser-induced fluorescence detection was used to investigate the behavior of carboxy-silica-UCNPs. Folic acid, targeting folate receptor overexpressed by wide variety of cancer cells, was used for illustrative purposes and assessed by CE under optimized conditions...
June 8, 2018: Electrophoresis
https://www.readbyqxmd.com/read/29878340/a-randomized-double-blind-placebo-controlled-study-to-evaluate-the-effect-of-erenumab-on-exercise-time-during-a-treadmill-test-in-patients-with-stable-angina
#15
Christophe Depre, Lubomir Antalik, Amaal Starling, Michael Koren, Osaro Eisele, Robert A Lenz, Daniel D Mikol
OBJECTIVE: To determine the potential impact of erenumab, a human anti-calcitonin gene-related peptide (CGRP) receptor monoclonal antibody, on total exercise time (TET), time to exercise-induced angina, and ST depression in a double-blind, placebo-controlled study in patients with stable angina due to documented coronary artery disease. BACKGROUND: The relative importance of the CGRP receptor pathway during myocardial ischemia has not been established. METHODS: An exercise treadmill test was conducted following a single IV infusion of erenumab 140 mg or placebo...
May 2018: Headache
https://www.readbyqxmd.com/read/29877243/-multiple-myeloma-update-on-pathophysiology-and-management
#16
Ichiro Hanamura, Shinsuke Iida
Proteasome inhibitors and immunomodulatory drugs have substantially improved the clinical outcomes in patients with multiple myeloma (MM) since 2000. In 2015, the new monoclonal antibodies, daratumumab and elotuzumab, were approved for treating relapsed and/or refractory MM (RRMM). Furthermore, venetoclax, a selective BCL-2 inhibitor, and chimeric antigen receptor (CAR) T-cell therapy that work against B-cell maturation antigen (BCMA) have reportedly shown great efficacy in phase 1 studies. The efficacy of venetoclax has been observed in RRMM with t (11;14) and higher BCL-2/BCL-XL expression...
2018: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/29864941/resveratrol-protects-bupivacaine-induced-neuro-apoptosis-in-dorsal-root-ganglion-neurons-via-activation-on-tropomyosin-receptor-kinase-a
#17
Zhiliang Guo, Yuanyuan Liu, Min Cheng
BACKGROUND: General anesthesia in spinal cord may lead to unexpected but irreversible neurotoxicity. We investigated whether resveratrol (RSV) may protect bupivacaine (BUP)-induced neuro-apoptosis in spinal cord dorsal root ganglia (DRG). METHODS: Mouse DRG cells were cultured in vitro, pre-treated with RSV and then 5 mM BUP. A concentration-dependent effect of RSV on reducing BUP-induced apoptosis of DRG neurons (DRGNs) was evaluated using a TUNEL assay. QRT-PCR and western blot assays were also conducted to evaluate gene and protein expressions of tropomyosin receptor kinase A/B/C (TrkA/B/C) and activated (phosphorylated) Trk receptors, phospho-TrkA/B/C...
July 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29861743/treatment-of-full-thickness-rotator-cuff-tendon-tear-using-umbilical-cord-blood-derived-mesenchymal-stem-cells-and-polydeoxyribonucleotides-in-a-rabbit-model
#18
Dong Rak Kwon, Gi-Young Park, Sang Chul Lee
Objective: The aim of this study was to investigate regenerative effects of ultrasound- (US-) guided injection with human umbilical cord blood-derived mesenchymal stem cells (UCB-MSCs) and/or polydeoxyribonucleotide (PDRN) injection in a chronic traumatic full-thickness rotator cuff tendon tear (FTRCTT) in a rabbit model. Methods: Rabbits ( n = 32) were allocated into 4 groups. After a 5 mm sized FTRCTT just proximal to the insertion site on the subscapularis tendon was created by excision, the wound was immediately covered by a silicone tube to prevent natural healing...
2018: Stem Cells International
https://www.readbyqxmd.com/read/29844860/phase-i-dose-escalation-study-of-f50067-a-humanized-anti-cxcr4-monoclonal-antibody-alone-and-in-combination-with-lenalidomide-and-low-dose-dexamethasone-in-relapsed-or-refractory-multiple-myeloma
#19
Guillemette Fouquet, Stéphanie Guidez, Valentine Richez, Anne-Marie Stoppa, Christophe Le Tourneau, Margaret Macro, Cécile Gruchet, Arthur Bobin, Niels Moya, Thomas Syshenko, Florence Sabirou, Anthony Levy, Paul Franques, Hélène Gardeney, Lionel Karlin, Lotfi Benboubker, Monia Ouali, Jean-Claude Vedovato, Pierre Ferre, Mariya Pavlyuk, Michel Attal, Thierry Facon, Xavier Leleu
Purpose: Multiple myeloma (MM) remains an incurable disease as tumor cells ultimately resist to all available drugs. Homing of tumor cells to the bone marrow microenvironment, involving especially the CXCR4/SDF-1 axis, allows them to survive, proliferate and resist to therapy. F50067, a humanized anti-CXCR4 IgG1 antibody, has promising preclinical activity in MM.We present a phase I multicenter escalation study in relapsed/refractory MM (RRMM) to determine the maximum tolerated dose (MTD) for F50067 alone and in combination with lenalidomide and low dose dexamethasone (Len-Dex)...
May 8, 2018: Oncotarget
https://www.readbyqxmd.com/read/29784015/induction-of-multiple-myeloma-cancer-stem-cell-apoptosis-using-conjugated-anti-abcg2-antibody-with-epirubicin-loaded-microbubbles
#20
Fangfang Shi, Miao Li, Jing Wang, Di Wu, Meng Pan, Mei Guo, Jun Dou
BACKGROUND: Multiple myeloma (MM) currently remains largely incurable. Cancer stem cells (CSCs) are believed to be responsible for drug resistance and eventual relapse. In this study, we exploited a novel agent to evaluate its inhibitory effect on MM CSCs. METHODS: Epirubicin (EPI)-loaded lipid microbubbles (MBs) conjugated with anti-ABCG2 monoclonal antibody (EPI-MBs + mAb) were developed and their effect on MM 138- CD34- CSCs isolated from human MM RPMI 8226 cell line plus ultrasound exposure in vitro and in vivo in a nonobese diabetic/severe combined immunodeficient mouse model were assessed...
May 21, 2018: Stem Cell Research & Therapy
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