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Anti IgE

Maxime Luu, Marc Bardou, Philippe Bonniaud, Françoise Goirand
Omalizumab is a subcutaneously administrated monoclonal anti-IgE antibody indicated in adults, adolescents and children 6 years of age and older with moderate to severe allergic asthma uncontrolled by conventional pharmacological treatments and sensitization to at least one perennial allergen. Area covered: This drug evaluation summarizes published data on pharmacokinetic and pharmacodynamic properties of omalizumab, on clinical efficacy and safety, including real-world evidence, and provides a medico-economic evaluation of the drug...
October 17, 2016: Expert Opinion on Drug Metabolism & Toxicology
Gemma Amo, José A Cornejo-García, Jesus M García-Menaya, Concepcion Cordobes, M J Torres, Gara Esguevillas, Cristobalina Mayorga, Carmen Martinez, Natalia Blanca-Lopez, Gabriela Canto, Alfonso Ramos, Miguel Blanca, José A G Agúndez, Elena García-Martín
The high-affinity IgE receptor (Fcε RI) is a heterotetramer of three subunits: Fcε RIα, Fcε RIβ, and Fcε RIγ (αβγ2) encoded by three genes designated as FCER1A, FCER1B (MS4A2), and FCER1G, respectively. Recent evidence points to FCERI gene variability as a relevant factor in the risk of developing allergic diseases. Because Fcε RI plays a key role in the events downstream of the triggering factors in immunological response, we hypothesized that FCERI gene variants might be related with the risk of, or with the clinical response to, selective (IgE mediated) non-steroidal anti-inflammatory (NSAID) hypersensitivity...
2016: Frontiers in Pharmacology
Steven Maltby, Peter G Gibson, Heather Powell, Vanessa M McDonald
BACKGROUND: Asthma and chronic obstructive pulmonary disease (COPD) are common airway diseases. Individuals with overlapping asthma and COPD experience increased health impairment and severe disease exacerbations. Efficacious treatment options are required for this population. Omalizumab (anti-IgE) therapy is effective in patients with severe, persistent asthma, but limited data are available on efficacy in populations with overlapping asthma and COPD. METHODS: Data from the Australian Xolair Registry (AXR) was used to compare treatment responses in individuals with asthma-COPD overlap to severe asthma alone...
October 11, 2016: Chest
Edyta Gendaszewska-Darmach, Edyta Węgłowska, Aurelia Walczak-Drzewiecka, Kaja Karaś
Mast cells (MCs) are long-lived resident cells known for their substantial role in antigen-induced anaphylaxis and other immunoglobulin E-mediated allergic reactions as well as tumor promotion. MCs' activation results in the release of pro-inflammatory factors such as histamine, tryptase, tumor necrosis factor or carboxypeptidase A stored in secretory granules. IgE-dependent hypersensitivity has been thought to be the major pathway mediating degranulation of mast cells, but the P2Y14 nucleotide receptor activated by UDP-glucose (UDPG) may also enhance this process...
October 9, 2016: Oncotarget
Mamoru Tanaka, Hiroyuki Watanabe, Yoshinobu Yoshimoto, Hana Kozai, Takeaki Okamoto
We examined the inhibitory effects of HAQ (His-Ala-Gln) peptide on type-1 allergy in vitro and in vivo. HAQ peptide inhibited β-hexosaminidase release and intracellular Ca(2+) levels of rat basophilic leukemia RBL-2H3 cells. Oral administration of a HAQ peptide-added diet (1 mg/mouse/administration) to C3H/HeJ mice for 14 days led to significant suppression of allergic symptoms, but did not reduce allergen-specific IgE or IgG1.
October 12, 2016: Bioscience, Biotechnology, and Biochemistry
Yoshimi Okamoto-Uchida, Ryosuke Nakamura, Yumiko Matsuzawa, Megumi Soma, Hiroshi Kawakami, Akiko Ishii-Watabe, Tomoko Nishimaki-Mogami, Reiko Teshima, Yoshiro Saito
The physicochemical nature of allergen molecules differ from the liquid phase to the solid phase. However, conventional allergy tests are based on the detection of immunoglobulin (Ig)E binding to immobilized allergens. We recently developed an in vitro allergy testing method using a luciferase-reporting humanized rat mast cell line to detect IgE crosslinking-induced luciferase expression (EXiLE test). The aim of the present study was to evaluate the effects of antigen immobilization on the results of different in vitro allergy tests using two anti-ovalbumin (OVA) antibodies (Abs), E-C1 and E-G5, with different properties in the OVA-induced allergic reaction...
2016: Biological & Pharmaceutical Bulletin
O S Michael, O M Sogaolu, F A Fehintola, O M Ige, C O Falade
BACKGROUND: The combination and use of multiple drugs in the treatment of tuberculosis (TB) predispose to adverse drug events and reactions. This study evaluated the incidence, frequency, and severity of adverse events to first line anti-tuberculosis (anti-TB) drugs in patients with TB and co-infections with Human Immunodeficiency Virus (HIV). OBJECTIVE: The objective of this study was to determine the effects of HIV status on the risk of developing adverse events to first line anti-TB therapy...
June 2016: Annals of Ibadan Postgraduate Medicine
Raphaële Nové-Josserand, Soazic Grard, Lila Auzou, Philippe Reix, Marlène Murris-Espin, François Brémont, Benyebka Mammar, Laurent Mely, Dominique Hubert, Isabelle Durieu, Pierre-Régis Burgel
Allergic bronchopulmonary aspergillosis (ABPA) affects up to 15% of patients with cystic fibrosis (CF). Corticosteroids are used as first-line therapy, but relapse and adverse effects commonly occur. Case reports have suggested the efficacy of the anti-IgE recombinant humanized monoclonal antibody omalizumab. A retrospective multicenter observational French study retrieved 32 CF patients (11 children and 21 adults) who have received omalizumab for more than 3 months in the context of ABPA. Clinical characteristics, concomitant medications (inhaled and oral corticosteroids, antifungal drugs), lung function, body mass index (BMI), and serum IgE were compared at the start and during the first year of omalizumab therapy...
October 7, 2016: Pediatric Pulmonology
T Hashimoto, A Ohzono, K Teye, S Numata, S Hiroyasu, D Tsuruta, T Hachiya, K Kuroda, M Hashiguchi, T Kawakami, N Ishii
BACKGROUND: IgE autoantibodies are considered to be involved in pathogenesis of bullous pemphigoid (BP), particularly inflammatory and erythematous phenotypes. OBJECTIVE: To develop reliable ELISAs for detection of IgE autoantibodies to both BP180 and BP230 in BP sera, and to compare the ELISA results with clinical features. METHODS: We used commercially available IgG ELISAs to develop IgE ELISAs for both BP180 and BP230. To determine the influence of excess amount of IgG autoantibodies, all normal and BP sera were tested before and after IgG adsorption...
October 7, 2016: British Journal of Dermatology
Motohiko Suzuki, Makoto Yokota, Yoshihisa Nakamura, Shinya Ozaki, Shingo Murakami
BACKGROUND: IL-35 was recently identified as an anti-inflammatory cytokine. We previously reported that recombinant fusion protein of murine IL-35 and human IgG1 Fc fragment (rIL-35) reduced Th2 cytokines (IL-4 and IL-5) in vitro. However, it is unclear whether IL-35 can attenuate nasal allergic responses and symptoms of allergic rhinitis in vivo. METHODS: To investigate the in vivo effect of IL-35 on allergic rhinitis in mice, mice were sensitized with ovalbumin (OVA)...
October 2, 2016: Allergology International: Official Journal of the Japanese Society of Allergology
Daphne M Moutsoglou, Stephen C Dreskin
BACKGROUND: Anti-peanut immunoglobulin E (anti-Pn IgE) can persist throughout life, suggesting that this condition could be maintained by long-lived antibody-secreting cells (ASCs). To determine the role of long-lived ASCs, peanut-allergic mice underwent prolonged treatment with the proteasome inhibitor, bortezomib (Bz). METHODS: Intravenous Bz was given twice weekly for 21 weeks to peanut-allergic mice. During treatment, serum anti-Pn IgE was measured, and the mice were rechallenged at the end of treatment...
October 6, 2016: International Archives of Allergy and Immunology
Márcia B Silva, Ana L M Amor, Leonardo N Santos, Alana A Galvão, Aida Y Oviedo V, Eduardo S Silva, Cynara Gomes Barbosa, Philip J Cooper, Camila A Figueiredo, Rita de Cassia Ribeiro, Neuza Maria Alcântara-Neves
In the present article, we provide shortly, data on risk factors for acquiring Toxocara spp. infection and investigate possible associations between this infection with atopy and asthma in school children of a small town and its semi-rural areas of Northeast Brazil. The data set are composed by demographic, social and home environment variables. The detection of anti-Toxocara spp. IgG and specific IgE to aeroallergens was determined by ELISA and ImmunocAP/Phadiatrope systems, respectively. The data presented in this article are related to the article entitled "Risk factors for Toxocara spp...
December 2016: Data in Brief
Jatinder Singh, Ramanpreet Shah, Dhandeep Singh
The mast cells are integral part of immune system and they have pleiotropic physiological functions in our body. Any type of abnormal stimuli causes the mast cells receptors to spur the otherwise innocuous mast cells to degranulate and release inflammatory mediators like histamine, cytokines, chemokines and prostaglandins. These mediators are involved in various diseases like allergy, asthma, mastocytosis, cardiovascular disorders, etc. Herein, we describe the receptors involved in degranulation of mast cells and are broadly divided into four categories: G-protein coupled receptors, ligand gated ion channels, immunoreceptors and pattern recognition receptors...
September 29, 2016: International Immunopharmacology
Kanokvalai Kulthanan, Papapit Tuchinda, Leena Chularojanamontri, Pattriya Chanyachailert, Wiwat Korkij, Amornsri Chunharas, Siriwan Wananukul, Wanida Limpongsanurak, Suwat Benjaponpitak, Wanee Wisuthsarewong, Kobkul Aunhachoke, Vesarat Wessagowit, Pantipa Chatchatee, Penpun Wattanakrai, Orathai Jirapongsananuruk, Jettanong Klaewsongkram, Nopadon Noppakun, Pakit Vichyanond, Puan Suthipinittharm, Kiat Ruxrungtham, Srisupalak Singalavanija, Jarungchit Ngamphaiboon
Urticaria is a common skin condition that can compromise quality of life and may affect individual performance at work or school. Remission is common in majority of patients with acute spontaneous urticaria (ASU); however, in chronic cases, less than 50% had remission. Angioedema either alone or with urticaria is associated with a much lower remission rate. Proper investigation and treatment is thus required. This guideline, a joint development of the Dermatological Society of Thailand, the Allergy, Asthma, and Immunology Association of Thailand and the Pediatric Dermatological Society of Thailand, is graded and recommended based on published evidence and expert opinion...
September 2016: Asian Pacific Journal of Allergy and Immunology
Manojkumar Bupathi, Joud Hajjar, Stacie Bean, Siqing Fu, David Hong, Daniel Karp, Bettzy Stephen, Kenneth Hess, Funda Meric-Bernstam, Aung Naing
Infusion reactions (IRs) to anti-neoplastic agents require prompt recognition and immediate treatment to avert significant complications. We conducted a retrospective review of the medical records of consecutive patients who received anti-neoplastic therapy in the outpatient treatment center of the Department of Investigational Cancer Therapeutics from January 1, 2013 to November 30, 2013. Of the 597 patients who received treatment, 9 (1.5 %) had IRs (all ≤ grade 2). The most common IRs observed on first occurrence were chills (n = 5), itching, rash, and facial flushing (n = 3 each)...
September 29, 2016: Investigational New Drugs
K Hutchinson, C Kerley, L Cormican, Y Rochev, J Faul
Since Vitamin D has anti-inflammatory effects we wondered whether the association between low serum 25OHD and airway obstruction in moderate persistent asthma might be explained by inflammatory pathways that worsen asthma. All subjects examined were Irish Caucasians with moderate persistent asthma and none took systemic steroid therapy. In addition to computerized spirometry, we measured BMI, serum 25-hydroxyvitamin D (25OHD), total IgE, Eosinophil Cationic Protein (ECP), and high sensitive C- reactive protein (hs-CRP)...
2016: Irish Medical Journal
Jean Sainte-Laudy, François Touraine, Delphine Cluzan, François Belle Moudourou
BACKGROUND: A major problem of venom-specific immunotherapy (VIT) is the absence of reliable parameters for deciding treatment discontinuation. AIM OF THE STUDY: Intracutaneous tests (ICTs), the basophil activation test (BAT), specific IgEs (sIgEs) and blocking factor (BF) activity were measured during VIT. We made an evaluation by means of a protective index (PI) including ICT, BAT and BF values. MATERIAL AND METHODS: A population of 45 patients who had experienced a systemic reaction after an insect sting were tested before VIT (T0), at 1 week (T1w), at 10 weeks (T10w) and at 21 weeks (T21w), and, for a subgroup of 17 patients, at 3-5 years (T3-5y)...
September 30, 2016: International Archives of Allergy and Immunology
Yanxi Li, Long Chen, Yehong Du, Daochao Huang, Huili Han, Zhifang Dong
Atopic dermatitis (AD) is a common chronic inflammatory skin disorder, and patients with AD suffer from severe psychological stress, which markedly increases the prevalence rate of depression and anxiety disorders in later life. Fluoxetine, a selective serotonin reuptake inhibitor, has recently been reported to exert anti-inflammatory and immunosuppressive effects. However, it is unclear whether fluoxetine is effective in the treatment of AD through reducing psychological stress and inflammatory reaction. Here, we reported that a BALB/c mouse model of AD was induced by application of 2,4-dinitrochlorobenzene (DNCB) onto hairless dorsal skin...
2016: Frontiers in Pharmacology
Qian Zhang, Ying Xiong, Guo-Bing Li, Qin Tang, Min Cao, Jing-Bin Huang, Mao Xing, Chang-Peng Hu, Ya Gong, Qing-Hua Wang, Ning Gao, Rong Zhang
ETHNOPHARMACOLOGICAL RELEVANCE: Xinqin, a polyherbal medicine, is an important traditional Chinese herbal formula used in traditional oriental medicine for treatment of allergic rhinitis (AR). The formula is based on the Chinese Pharmacopoeia. AIM OF THE STUDY: Previously, Xinqin exhibited potent anti-allergic effect in a guinea pig model of AR. In this study, we explored the molecular mechanism of the anti-allergic effect mediated by Xinqin. MATERIALS AND METHODS: AR was induced in guinea pigs (Hartley) with toluene-2, 4-diisocyanate (TDI) in vivo and in HMC-1 mast cells with A23187/ phorbol 12-myristate-13-acetate (PMA) in vitro...
September 22, 2016: Journal of Ethnopharmacology
Jiaqi Liu, Ying Wei, Qingli Luo, Fei Xu, Zhengxiao Zhao, Hongying Zhang, Linwei Lu, Jing Sun, Feng Liu, Xin Du, Mihui Li, Kai Wei, Jingcheng Dong
Baicalin, extracted and purified from the Chinese medicinal plant, Scutellaria baicalensis Georgi (Huang qin in Chinese), exhibits potent anti-inflammatory activity against asthma. However, it remains unknown whether baicalin inhibits the activity of CC chemokine receptor 7 (CCR7) and its ligands, which are crucial for the initiation of airway inflammation. In the present study, we investigated the effects of baicalin on CCR7 and its ligands, CCL19 and CCL21, as well as on the nuclear factor-κB (NF-κB) pathway in a mouse model of asthma...
September 21, 2016: International Journal of Molecular Medicine
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