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monoclonal treatment

Sarah Löw, Tracy T Batchelor
Primary central nervous system lymphoma (PCNSL) is an extranodal non-Hodgkin lymphoma limited to the brain, spinal cord, leptomeninges, and eyes. The majority of patients are immunocompetent, with a median age of 65 years at diagnosis. Historically, whole-brain radiation therapy (WBRT) was the first and sole treatment for PCNSL. Today, due to the recognized neurotoxicity of WBRT, this modality is usually avoided in the treatment. Most chemotherapy regimens are based on high-dose methotrexate plus the anti-CD20 monoclonal antibody rituximab, leading to high response rates, but 5-year survival is still poor at approximately 30% compared with other extranodal lymphomas...
February 2018: Seminars in Neurology
Ryutaro Tomita, Tetsuju Sekiryu, Hiroaki Shintake, Kuniharu Saito
PURPOSE: To report a 67-year-old woman with polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy, and skin changes (POEMS) syndrome, showing bilateral serous retinal detachment. The retinal lesion was evaluated by multimodal imaging using spectral domain optical coherence tomography and an adaptive optics (AO) camera. METHODS: A case report. RESULTS: Optical coherence tomography showed hyperreflective foci mainly in the inner retina in both eyes...
March 15, 2018: Retinal Cases & Brief Reports
Xueying Wang, Ksenia V Kastanenka, Michal Arbel-Ornath, Caitlin Commins, Akira Kuzuya, Amanda J Lariviere, Grant A Krafft, Franz Hefti, Jasna Jerecic, Brian J Bacskai
Soluble amyloid β oligomers (AβOs) are widely recognized neurotoxins that trigger aberrant signaling in specific subsets of neurons, leading to accumulated neuronal damage and memory disorders in Alzheimer's disease (AD). One of the profound downstream consequences of AβO-triggered events is dysregulation of cytosolic calcium concentration ([Ca2+ ]i ), which has been implicated in synaptic failure, cytoskeletal abnormalities, and eventually neuronal death. We have developed an in vitro/in vivo drug screening assay to evaluate putative AβO-blocking candidates by measuring AβO-induced real-time changes in [Ca2+ ]i ...
March 15, 2018: Scientific Reports
Marc Humbert, Camille Taillé, Laurence Mala, Vincent Le Gros, Jocelyne Just, Mathieu Molimard
Omalizumab is a monoclonal anti-immunoglobulin E antibody used to treat severe allergic asthma (SAA). The aim of the STELLAIR study was to determine the importance of pre-treatment blood eosinophil count (EOS) as a predictive measure for response to omalizumab. This retrospective real-life study was conducted in France between December 2015 and September 2016 using medical records of SAA omalizumab-treated patients. Response to omalizumab was assessed by three criteria: physician evaluation, reduction of ≥40% in annual exacerbation rate, and combination of both...
March 15, 2018: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
(no author information available yet)
▼Dupilumab (Dupixent - Sanofi-Aventis Groupe), a monoclonal antibody for the treatment of moderate-to-severe atopic dermatitis in adults who require systemic therapy, was licensed by the European Medicines Agency in September 2017. It is the first biological drug approved specifically for this condition. Here, we review the evidence for its efficacy and safety and consider its place in therapy.
March 2018: Drug and Therapeutics Bulletin
Alexandre Karras
Cryoglobulins are immunoglobulins that undergo reversible precipitation at low temperatures. They can induce systemic vasculitis, characterized by purpuric cutaneous lesions, arthritis, peripheral neuropathy, hypocomplementemia and glomerular disease. Renal pathology reveals membranoproliferative glomerulonephritis, with particularly intense mesangial cell proliferation and infiltration by macrophages, associated with intracapillary thrombi. This renal disease presents as a nephritic syndrome, with heavy proteinuria, haematuria severe hypertension and rapidly progressive kidney failure that can lead to end-stage renal disease...
March 12, 2018: Néphrologie & Thérapeutique
A Sionis, R Suades, J Sans-Roselló, M Sánchez-Martínez, J Crespo, T Padró, J Cubedo, A Ferrero-Gregori, M Vila-Perales, A Duran-Cambra, L Badimon
BACKGROUND: Cardiogenic shock (CS) is the leading cause of death in patients admitted for acute myocardial infarction (MI). Despite the recent advances in reperfusion and medical treatment mortality remains unacceptably high. Whether cells of the blood compartment in CS-patients are activated and release microparticles (cMPs) that may be both messengers and biomarkers of cell damage is not known. We aimed to investigate the cMP subtypes and parental activated cells of ST-elevation MI (STEMI)-patients complicated by CS and that of non-CS STEMI-patients (non-CS) in order to identify a cMP signature that could aid CS patient's risk stratification...
May 1, 2018: International Journal of Cardiology
Takehiro Takahashi, Yoko Koga, Mie Kainoh
Psoriasis is a chronic inflammatory skin disease characterized by erythema, skin hyperplasia, scales, and keratinocyte hyperproliferation. While the cause of psoriasis is not clearly understood, a dysregulated immune system, especially activation of IL-23/IL-17 axis, has been strongly implicated in the pathogenesis of psoriasis. For example, anti-IL-23 therapy is effective in psoriasis patients, and thus IL-23 is considered as a potential therapeutic target for the treatment of psoriasis. The skin barrier provides protection of the human body against infection from external pathogens...
March 12, 2018: European Journal of Pharmacology
Vesa M Olkkonen, Juha Sinisalo, Matti Jauhiainen
Remarkably good results have been achieved in the treatment of atherosclerotic cardiovascular diseases (CVD) by using statin, ezetimibe, antihypertensive, antithrombotic, and PCSK9 inhibitor therapies and their proper combinations. However, despite this success, the remaining CVD risk is still high. To target this residual risk and to treat patients who are statin-intolerant or have an exceptionally high CVD risk for instance due to familial hypercholesterolemia (FH), new therapies are intensively sought. One pathway of drug development is targeting the circulating triglyceride-rich lipoproteins (TRL) and their lipolytic remnants, which, according to the current view, confer a major CVD risk...
March 8, 2018: Atherosclerosis
Djalma A Alves da Silva, Marcos V da Silva, Cleyson C Oliveira Barros, Patrícia B Dias Alexandre, Rodolfo P Timóteo, Jonatas S Catarino, Helioswilton Sales-Campos, Juliana R Machado, Denise B R Rodrigues, Carlo J Oliveira, Virmondes Rodrigues
Tuberculosis (TB) is a granulomatous disease that has affected humanity for thousands of years. The production of cytokines, such as IFN-γ and TNF-α, is fundamental in the formation and maintenance of granulomas and in the control of the disease. Recently, the introduction of TNF-α-blocking monoclonal antibodies, such as Infliximab, has brought improvements in the treatment of patients with chronic inflammatory diseases, but this treatment also increases the risk of reactivation of latent tuberculosis. Our objective was to analyze, in an in vitro model, the influence of Infliximab on the granulomatous reactions and on the production of antigen-specific cytokines (TNF-α, IFN-γ, IL-12p40, IL-10 and IL-17) from beads sensitized with soluble Bacillus Calmette-Guérin (BCG) antigens cultured in the presence of peripheral blood mononuclear cells (PBMC) from TB patients...
2018: PloS One
Jitendrakumar Patel, Jitendra Amrutiya, Priyanka Bhatt, Ankit Javia, Mukul Jain, Ambikanandan Misra
Aim of this study was to develop anti EGFR antibody conjugated poly (lactide-co-glycolide) nanoparticles (NPs) to target epidermal growth factor receptor, highly expressed on non-small cell lung cancer cells to improve cytotoxicity and site specificity. Cetuximab was conjugated to Docetaxel loaded PLGA NPs by known EDC/NHS chemistry and characterized for size, zeta potential, conjugation efficiency and results were 128.4 ±3.6 nm, -31.0 ± 0.8 mV and 39.77 ± 3.4% respectively. In-vitro release study demonstrated sustained release of drug from NPs with 25% release at pH 5...
March 15, 2018: Journal of Microencapsulation
Daniel Geh, Caroline Gordon
Systemic lupus erythematosus (SLE) is a multi-system autoimmune disease. There are three drugs licensed for the treatment of lupus: corticosteroids, hydroxychloroquine and belimumab. Immunosuppressants such as azathioprine, methotrexate and mycophenolate are also used. Despite these treatments there is still considerable morbidity. New treatments are needed for the management of active lupus. Epratuzumab a humanized IgG1 monoclonal antibody that targets CD22 resulting in selective B cell modulation that has been considered a potential treatment for SLE...
March 15, 2018: Expert Review of Clinical Immunology
Reynold A Panettieri, Millie Wang, Martin Braddock, Karin Bowen, Gene Colice
Tralokinumab, a fully human IgG4 monoclonal antibody, specifically neutralizes IL-13. The ATMOSPHERE clinical development program comprised four randomized, placebo-controlled clinical trials and an open-label study that aimed to assess the efficacy and safety of tralokinumab for the treatment of severe, uncontrolled asthma. The two pivotal trials (STRATOS 1 and STRATOS 2; NCT02161757 and NCT02194699) evaluated the efficacy and safety of tralokinumab, with STRATOS 1 identifying a subgroup most likely to demonstrate enhanced response to treatment...
March 14, 2018: Immunotherapy
A von Braun, C Lübbert
The incidence of clostridium difficile infections (CDI) remains on a high level globally. In Germany, the number of severe or even lethal cases continues to increase. The main risk factor for the development of CDI is exposure to broad spectrum antibiotics, which disturb the physiological microbiome and therefore enable colonization with C. difficile. According to the updated US and European guidelines, orally administered vancomycin is the treatment of choice. Fidaxomicin is as effective as vancomycin but has the advantage of a lower rate of recurrence...
March 13, 2018: Der Internist
Christine Koch, Anna M Schwing, Eva Herrmann, Markus Borner, Eduardo Diaz-Rubio, Efrat Dotan, Jaime Feliu, Natsuko Okita, John Souglakos, Hendrik T Arkenau, Rainer Porschen, Miriam Koopman, Cornelis J A Punt, Aimery de Gramont, Christophe Tournigand, Stefan Zeuzem, Joerg Trojan
Background: The aim of this meta-analysis was to evaluate efficacy and safety of first-line chemotherapy with or without a monoclonal antibody in elderly patients (≥ 70 years) with metastatic colorectal cancer (mCRC), since they are frequently underrepresented in clinical trials. Results: Individual data from 10 studies were included. From a total of 3271 patients, 604 patients (18%) were ≥ 70 years (median 73 years, range 70-88). Of these, 335 patients were treated with a bevacizumab-based first-line regimen and 265 were treated with chemotherapy only...
February 13, 2018: Oncotarget
Isobel Ramsay, Nicholas M Brown, David A Enoch
Recurrence occurs in approximately 25% of all cases of Clostridium difficile infection (CDI) and poses a unique clinical challenge. Traditionally, treatment options of CDI have been limited to regimes of established antibiotics (eg, pulsed/tapered vancomycin) but faecal transplantation is emerging as a useful alternative. In recent years, promising new strategies have emerged for effective prevention of recurrent CDI (rCDI) including new antimicrobials (eg, fidaxomicin) and monoclonal antibodies (eg, bezlotoxumab)...
2018: Infectious Diseases
M R Khaitov, A R Gaisina, I P Shilovskiy, V V Smirnov, G V Ramenskaia, A A Nikonova, R M Khaitov
Interleukin-33 (IL-33) belongs to the IL-1 cytokine family and plays an important role in modulating immune system by inducing Th2 immune response via the ST2 membrane receptor. Epithelial cells are the major producers of IL-33. However, IL-33 is also secreted by other cells, e.g., bone marrow cells, dendritic cells, macrophages, and mast cells. IL-33 targets a broad range of cell types bearing the ST2 surface receptor. Many ST2-positive cells, such as Th2 cells, mast cells, basophils, and eosinophils, are involved in the development of allergic bronchial asthma (BA)...
January 2018: Biochemistry. Biokhimii︠a︡
Brunella Posteraro, Federico Pea, Luca Masucci, Patrizia Posteraro, Maurizio Sanguinetti
Clostridium difficile infection (CDI) is the most common healthcare-associated infection worldwide. As standard CDI antibiotic therapies can result in unacceptably high recurrence rates, novel therapeutic strategies for CDI are necessary. A recently emerged immunological therapy is a monoclonal antibody against C. difficile toxin B. Areas covered: In this review, the authors summarize the available pharmacological, preclinical, and clinical data for the CDI treatment based on anti-toxin A (actoxumab) and anti-toxin B (bezlotoxumab) human monoclonal antibodies (HuMabs), and discuss about the potentiality of a therapy that includes HuMab combined administration for CDI...
March 15, 2018: Expert Opinion on Biological Therapy
Pietro Speziale, Simonetta Rindi, Giampiero Pietrocola
Staphylococcus aureus is a human pathogen that can cause a wide spectrum of diseases, including sepsis, pneumonia, arthritis, and endocarditis. Ineffective treatment of a number of staphylococcal infections with antibiotics is due to the development and spread of antibiotic-resistant strains following decades of antibiotic usage. This has generated renewed interest within the scientific community in alternative therapeutic agents, such as anti- S. aureus antibodies. Although the role of antibodies in the management of S...
March 13, 2018: Microorganisms
Roberta Gualtierotti, Maria Orietta Borghi, Maria Gerosa, Tommaso Schioppo, Paola Larghi, Jens Geginat, Pier Luigi Meroni
OBJECTIVES: B cells play an important role in the initiation and progression of systemic lupus erythematosus (SLE). Accordingly, B cell-targeted therapy has been suggested as a new rational approach for treating lupus. Belimumab, a human monoclonal antibody directed against B lymphocyte stimulator (BLyS), was reported as the first biological treatment effective in reducing mild-to-moderate SLE disease activity by using different scoring systems and endpoints. Conversely clinical trials with rituximab, a chimeric monoclonal antibody directed against the CD20 expressed by B cells, have failed to achieve primary endpoints in spite of a number of reports showing its beneficial effects...
February 27, 2018: Clinical and Experimental Rheumatology
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