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Monoclonal antibody

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https://www.readbyqxmd.com/read/28098746/marine-antibody-drug-conjugates-design-strategies-and-research-progress
#1
REVIEW
Yu-Jie Wang, Yu-Yan Li, Xiao-Yu Liu, Xiao-Ling Lu, Xin Cao, Bing-Hua Jiao
Antibody-drug conjugates (ADCs), constructed with monoclonal antibodies (mAbs), linkers, and natural cytotoxins, are innovative drugs developed for oncotherapy. Owing to the distinctive advantages of both chemotherapy drugs and antibody drugs, ADCs have obtained enormous success during the past several years. The development of highly specific antibodies, novel marine toxins' applications, and innovative linker technologies all accelerate the rapid R&D of ADCs. Meanwhile, some challenges remain to be solved for future ADCs...
January 13, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28098061/prostate-cancer-immunotherapy-particularly-in-combination-with-androgen-deprivation-or-radiation-treatment-customized-pharmacogenomic-approaches-to-overcome-immunotherapy-cancer-resistance
#2
REVIEW
C Alberti
Conventional therapeutic approaches for advanced prostate cancer - such as androgen deprivation, chemotherapy, radiation - come up often against lack of effectiveness because of possible arising of correlative cancer cell resistance and/or inadequate anti-tumor immune conditions. Whence the timeliness of resorting to immune-based treatment strategies including either therapeutic vaccination-based active immunotherapy or anti-tumor monoclonal antibody-mediated passive immunotherapy. Particularly attractive, as for research studies and clinical applications, results to be the cytotoxic T-lymphocyte check point blockade by the use of anti-CTLA-4 and PD-1 monoclonal antibodies, particularly when combined with androgen deprivation therapy or radiation...
September 2017: Il Giornale di Chirurgia
https://www.readbyqxmd.com/read/28097685/cartilage-oligomeric-matrix-protein-comp-neo-epitope-in-the-synovial-fluid-of-horses-with-acute-lameness-a-new-biomarker-for-the-early-stages-of-osteoarthritis
#3
E Skiöldebrand, S Ekman, L MattssonHultén, E Svala, K Björkman, A Lindahl, A Lundqvist, P Önnerfjord, C Sihlbom, U Rüetschi
BACKGROUND: Clinical tools to diagnose the early changes of osteoarthritis (OA) that occur in the articular cartilage are lacking. OBJECTIVES: We sought to identify and quantify a novel cartilage oligomeric matrix protein (COMP) neo-epitope in the synovial fluid from the joints of healthy horses and those with different stages of OA. STUDY DESIGN: In vitro quantitative proteomics and assay development with application in synovial fluids samples obtained from biobanks of well-characterised horses...
January 17, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28097658/segmental-fibre-type-composition-of-the-rat-iliopsoas-muscle
#4
Hrvoje Vlahovic, Ksenija Bazdaric, Verner Marijancic, Tamara Soic-Vranic, Daniela Malnar, Juraj Arbanas
The iliopsoas of the rat is composed of two muscles - the psoas major muscle and the iliacus muscle. The psoas major muscle arises from all the lumbar vertebrae and the iliacus muscle from the fifth and sixth lumbar vertebrae and ilium. Their common insertion point is the lesser trochanter of the femur, and their common action is the lateral rotation of the femur and flexion of the hip joint. Unlike humans, the rat is a quadruped and only occasionally rises up on its hind legs. Therefore, it is expected that the fibre type composition of the rat iliopsoas muscle will be different than that of humans...
January 18, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28097628/erratum-to-optimal-affinity-of-a-monoclonal-antibody-guiding-principles-using-mechanistic-modeling
#5
Abhinav Tiwari, Anson K Abraham, John M Harrold, Anup Zutshi, Pratap Singh
No abstract text is available yet for this article.
January 17, 2017: AAPS Journal
https://www.readbyqxmd.com/read/28096698/burkitt-lymphoma-in-adolescents-and-young-adults-management-challenges
#6
REVIEW
Massimo Dozzo, Francesca Carobolante, Pietro Maria Donisi, Annamaria Scattolin, Elena Maino, Rosaria Sancetta, Piera Viero, Renato Bassan
About one-half of all Burkitt lymphoma (BL) patients are younger than 40 years, and one-third belong to the adolescent and young adult (AYA) subset, defined by an age between 15 and 25-40 years, based on selection criteria used in different reports. BL is an aggressive B-cell neoplasm displaying highly characteristic clinico-diagnostic features, the biologic hallmark of which is a translocation involving immunoglobulin and c-MYC genes. It presents as sporadic, endemic, or epidemic disease. Endemicity is pathogenetically linked to an imbalance of the immune system which occurs in African children infected by malaria parasites and Epstein-Barr virus, while the epidemic form strictly follows the pattern of infection by HIV...
2017: Adolescent Health, Medicine and Therapeutics
https://www.readbyqxmd.com/read/28096572/current-and-emerging-treatments-for-hypercholesterolemia-a-focus-on-statins-and-proprotein-convertase-subtilisin-kexin-type-9-inhibitors-for-perioperative-clinicians
#7
REVIEW
Terrence L Trentman, Steven G Avey, Harish Ramakrishna
Statins are a mainstay of hyperlipidemia treatment. These drugs inhibit the enzyme 3-hydroxy-3-methylglutaryl coenzyme A reductase and have beneficial effects on atherosclerosis including plaque stabilization, reduction of platelet activation, and reduction of plaque proliferation and inflammation. Statins also have a benefit beyond atherosclerotic plaque, including anticoagulation, vasodilatation, antioxidant effects, and reduction of mediators of inflammation. In the perioperative period, statins appear to contribute to improved outcomes via these mechanisms...
October 2016: Journal of Anaesthesiology, Clinical Pharmacology
https://www.readbyqxmd.com/read/28096534/novel-therapeutic-approach-to-improve-hematopoiesis-in-low-risk-mds-by-targeting-mdscs-with-the-fc-engineered-cd33-antibody-bi-836858
#8
E A Eksioglu, X Chen, K-H Heider, B Rueter, K L McGraw, A A Basiorka, M Wei, A Burnette, P Cheng, J Lancet, R Komrokji, J Djeu, A List, S Wei
We recently reported that the accumulation of myeloid-derived suppressor cells (MDSC), defined as CD33(+)HLA-DR(-)Lin(-), plays a direct role in the pathogenesis of myelodysplastic syndrome (MDS). In particular, CD33 is strongly expressed in MDSC isolated from patients with MDS where it plays an important role in MDSC-mediated hematopoietic suppressive function through its activation by S100A9. Therefore, we tested whether blocking this interaction with a fully human, Fc-engineered monoclonal antibody against CD33 (BI 836858) suppresses CD33-mediated signal transduction and improves the bone marrow microenvironment in MDS...
January 18, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28096525/toll-like-receptor-4-signaling-in-high-mobility-group-box-1-protein-1-mediated-the-suppression-of-regulatory-t-cells
#9
Chunyan Luo, Huiting Liu, Hu Wang, Jiajun Wang
BACKGROUND Treg cells play a central role in the suppression of immune response, and their suppressive capacity can be modulated by toll-like receptor (TLR) ligands. However, the detailed pathway of TLR ligand modulation is still unknown. The present study aimed to evaluate the effect of the high mobility group box-1 protein 1 (HMGB1) and lipopolysaccharide (LPS) on Treg cells through TLR4 signaling. MATERIAL AND METHODS Treg cells were purified from healthy human peripheral blood mononuclear cells (PBMCs) by magnetic-bead activity cell sorting (MACS), blocked by anti-TLR4 monoclonal antibody, and then incubated with different concentration of LPS or HMGB1...
January 18, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28096456/antibody-conjugated-dna-based-nanocarriers-intercalated-with-doxorubicin-eliminate-myofibroblasts-in-explants-of-human-lens-tissue
#10
Jacquelyn Gerhart, Marvin Greenbaum, Lou Casta, Anthony Clemente, Keith Mathers, Robert Getts, Mindy George-Weinstein
Posterior capsule opacification (PCO) occurs in some adults and most children following cataract surgery. The fibrotic form of PCO arises, in part, from migratory, contractile myofibroblasts that deform the lens capsule and impair vision. In short-term cultures of human anterior lens tissue, myofibroblasts emerge from Myo/Nog cells that are identified with the G8 monoclonal antibody and by their expression of the MyoD transcription factor and bone morphogenetic protein inhibitor noggin. In this study, we tested the hypothesis that targeted depletion of Myo/Nog cells with the G8 mAb conjugated to three-dimensional DNA nanocarriers intercalated with Doxorubicin (G8:3DNA:Dox) would prevent the accumulation of myofibroblasts in long-term, serum and growth factor free cultures of human lens tissue obtained by capsulorhexis...
January 17, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28096174/anti-folate-receptor-%C3%AE-ige-but-not-igg-recruits-macrophages-to-attack-tumors-via-tnf-%C3%AE-mcp-1-signaling
#11
Debra H Josephs, Heather J Bax, Tihomir Dodev, Mirella Georgouli, Mano Nakamura, Giulia Pellizzari, Louise Saul, Panagiotis Karagiannis, Anthony Cheung, Cecilia Herraiz, Kristina M Ilieva, Isabel Correa, Matthew Fittall, Silvia Crescioli, Patrycja Gazinska, Natalie Woodman, Silvia Mele, Giulia Chiaruttini, Amy E Gilbert, Alexander Koers, Marguerite Bracher, Christopher Selkirk, Heike Lentfer, Claire Barton, Elliott Lever, Gareth Muirhead, Sophia Tsoka, Silvana Canevari, Mariangela Figini, Ana Montes, Noel Downes, David Dombrowicz, Christopher Corrigan, Andrew J Beavil, Frank O Nestle, Paul S Jones, Hannah J Gould, Victoria Sanz-Moreno, Philip J Blower, James Spicer, Sophia N Karagiannis
IgE antibodies are key mediators of anti-parasitic immune responses, but their potential for cancer treatment via antibody-directed cell-mediated cytotoxicity (ADCC) has been little studied. Recently, tumor antigen-specific IgEs were reported to restrict cancer cell growth by engaging high-affinity Fc receptors on monocytes and macrophages, however, the underlying therapeutic mechanisms were undefined and in vivo proof-of-concept was limited. Here, an immunocompetent rat model was designed to recapitulate the human IgE-Fcε receptor system for cancer studies...
January 17, 2017: Cancer Research
https://www.readbyqxmd.com/read/28096093/lymphangiogenesis-is-a-feature-of-acute-gvhd-and-vegfr-3-inhibition-protects-against-experimental-gvhd
#12
Sarah Mertlitz, Yu Shi, Martina Kalupa, Carsten Grötzinger, Jörg Mengwasser, Katarina Riesner, Steffen Cordes, Sefer Elezkurtaj, Olaf Penack
Lymph vessels play a crucial role for immune reactions in health and disease. In oncology the inhibition of lymphangiogenesis is an established therapeutic concept to reduce metastatic spreading of tumor cells. During allogeneic tissue transplantation the inhibition of lymphangiogenesis has been successfully used to attenuate graft rejection. Despite its critical importance for tumor growth, allo-immune responses and inflammation, the role of lymphangiogenesis has not been investigated during allogeneic hematopoietic stem cell transplantation (allo-HSCT)...
January 17, 2017: Blood
https://www.readbyqxmd.com/read/28094996/characterization-of-protein-excipient-microheterogeneity-in-biopharmaceutical-solid-state-formulations-by-confocal-fluorescence-microscopy
#13
Stijn H S Koshari, Jean L Ross, Purnendu K Nayak, Isidro E Zarraga, Karthikan Rajagopal, Norman J Wagner, Abraham M Lenhoff
Protein-stabilizer microheterogeneity is believed to influence long-term protein stability in solid-state biopharmaceutical formulations and its characterization is therefore essential for the rational design of stable formulations. However, the spatial distribution of the protein and the stabilizer in a solid-state formulation is, in general, difficult to characterize because of the lack of a functional, simple, and reliable characterization technique. We demonstrate the use of confocal fluorescence microscopy with fluorescently labeled monoclonal antibodies (mAbs) and antibody fragments (Fabs) to directly visualize three-dimensional particle morphologies and protein distributions in dried biopharmaceutical formulations, without restrictions on processing conditions or the need for extensive data analysis...
January 17, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28094575/treatment-approaches-of-hard-to-treat-non-hodgkin-lymphomas
#14
Lakshminarayanan Nandagopal, Amitkumar Mehta
Even after recent advancements with monoclonal antibodies, antibody drug conjugates and immune therapies, relapsed and refractory lymphomas remain challenging to treat; and the definition and treatment approaches of hard-to-treat lymphomas (HTL) continue to evolve. Areas covered: In this review, we will address HTL encompassing diffuse large B cell lymphoma (DLBCL), follicular lymphoma (FL) and peripheral T cell lymphomas (PTCL). DLBCL, which comprises 30-40% of non-Hodgkin lymphomas is a highly aggressive and heterogeneous malignancy, with primary refractory or relapsed disease remaining a therapeutic challenge...
January 17, 2017: Expert Review of Hematology
https://www.readbyqxmd.com/read/28094469/immunohistochemical-assessment-of-glucagon-like-peptide-1-receptor-glp-1r-expression-in-the-pancreas-of-patients-with-type-2-diabetes
#15
Rikke Kaae Kirk, Charles Pyke, Matthias G von Herrath, Jane Preuss Hasselby, Lars Pedersen, Pia Gottrup Mortensen, Lotte Bjerre Knudsen, Ken Coppieters
Glucagon-like peptide-1 (GLP-1) is an incretin hormone which stimulates insulin release and inhibits glucagon secretion from the pancreas in a glucose-dependent manner. Incretin-based therapies, consisting of GLP-1 receptor (GLP-1R) agonists and dipeptidyl peptidase-4 (DPP-4) inhibitors, are used for the treatment of T2D. Immunohistochemical studies for GLP-1R expression have previously been hampered by the use of unspecific polyclonal antibodies. This study used a new monoclonal antibody to assess GLP-1R expression in pancreatic tissue from 23 patients with T2D, including 7 with a DPP-4 inhibitor and 1 with a GLP-1R agonist treatment history...
January 17, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28094093/achiralpentagonalpolyhedralframework-forcharacterizingviruscapsidstructures
#16
REVIEW
Aditya Raguram, V Sasisekharan, Ram Sasisekharan
Recent developments of rational strategies for the design of antiviral therapies, including monoclonal antibodies (mAbs), have naturally relied extensively on available viral structural information. As new strategies continue to be developed, it is equally important to continue to refine our understanding and interpretation of viral structural data. There are known limitations to the traditional (Caspar-Klug) theory for describing virus capsid structures that involves subdividing a capsid into triangular subunits...
January 13, 2017: Trends in Microbiology
https://www.readbyqxmd.com/read/28093972/conformation-as-the-therapeutic-target-for-neurodegenerative-diseases
#17
Rajaraman Krishnan, Franz Hefti, Haim Tsubery, Michal Lulu, Ming Proschitsky, Richard Fisher
Therapeutic strategies that target pathways of protein misfolding and the toxicity of intermediates along these pathways are mainly at discovery and early development stages, with the exception of monoclonal antibodies that have mainly failed to produce convincing clinical benefits in late stage trials. The clinical failures represent potentially critical lessons for future neurodegenerative disease drug development. More effective drugs may be achieved by pursuing the following two strategies. First, conformational targeting of aggregates of misfolded proteins, rather than less specific binding that includes monomer subunits, which vastly outnumber the toxic targets...
January 16, 2017: Current Alzheimer Research
https://www.readbyqxmd.com/read/28093480/comprehensive-screening-for-pd-l1-expression-in-thyroid-cancer
#18
Soomin Ahn, Tae Hyuk Kim, Sun Wook Kim, Chang Seok Ki, Hye Won Jang, Jee Soo Kim, Jung Han Kim, Jun-Ho Choe, Jung Hee Shin, Soo Yeon Hahn, Young Lyun Oh, Jae Hoon Chung
PD-L1 expression is being considered a potential biomarker for response of anti-PD-1 or anti-PD-L1 agents in various tumors. The reported frequency of PD-L1 positivity varies in thyroid carcinomas, and multiple factors may contribute to the variability in PD-L1 positivity. We evaluated the PD-L1 expression in various thyroid cancers on a large scale. A total of 407 primary thyroid cancers with a median 13.7-year of follow-up were included. We evaluated the frequency of PD-L1 expression using a rabbit monoclonal antibody (clone SP142)...
February 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28093271/characterization-and-clinical-validation-of-mcm2-and-top2a-monoclonal-antibodies-in-the-bd-proex%C3%A2-c-assay-an-immunoassay-which-detects-aberrant-s-phase-induction-in-cervical-tissue
#19
Eric P Dixon, Lorraine M King, Ramona Nelson, Stephen G Simkins, Steven L Knapp, George H Brough, Karen L Lenz, Dorian T Henderson, Clark M Whitehead, Janice Hessling, Charlotte A Brown, Douglas P Malinowski
BACKGROUND: The Papanicolaou (Pap) screen has been successful in reducing cervical cancer; but exhibits low sensitivity when detecting cervical dysplasia. Use of molecular biomarkers in Pap tests may improve diagnostic accuracy. DESIGN: Monoclonal antibodies to Minichromosome Maintenance Protein 2 (MCM2) and DNA Topoisomerase II α (TOP2A) were selected for use in IHC based on their ability to differentiate normal from diseased cervical tissues in tissue microarrays...
January 13, 2017: Journal of Immunological Methods
https://www.readbyqxmd.com/read/28092987/emerging-treatment-approaches-for-myeloma-related-bone-disease
#20
Maria Gavriatopoulou, Meletios A Dimopoulos, Efstathios Kastritis, Evangelos Terpos
Multiple myeloma is characterized by the presence of osteolytic lesions that leads to devastating skeletal-related events in the majority of patients. Myeloma bone disease is attributed to increased osteoclastic and suppressed osteoblastic activity. Areas covered: Bisphosphonates remain the main treatment option, however they have limitations on their own. Understanding the pathogenesis of myeloma bone disease may provide a roadmap for new therapeutic approaches. The pathway of RANKRANKLOPG pathway has revealed denosumab, a monoclonal antibody targeting RANKL as a novel emerging therapy for myeloma-related bone disease...
January 17, 2017: Expert Review of Hematology
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