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Mast cell biomarker

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https://www.readbyqxmd.com/read/29108921/micrornas-expression-pattern-related-to-mast-cell-activation-and-angiogenesis-in-paraffin-embedded-salivary-gland-tumors
#1
Poliana Ramos Braga Santos, Claúdia Malheiros Coutinho-Camillo, Fernando Augusto Soares, Valéria Souza Freitas, Deise Souza Vilas-Bôas, Flávia Caló Aquino Xavier, Clarissa Araújo Gurgel Rocha, Iguaracyra Barreto de Araújo, Jean Nunes Dos Santos
The aim of this study was evaluate the expression profile of microRNAs related to mast cells activation and angiogenesis in salivary glands tumors. METHOD: We have analyzed the expression of miR-9, miR-16, miR-17, miR-132, miR-195 and miR-221 by real-time RT-PCR, in 11 adenoid cystic carcinomas, 9 mucoepidermoid carcinomas and 11 pleomorphic adenomas. Immunohistochemical investigation was performed to detect mast cells tryptase and CD-34 for microvessels biomarkers. miR-16, miR-17, miR-132, miR-195 and miR-221 showed a decreased expression, whereas miR-9 showed an increased expression in most cases compared to normal tissues...
October 18, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/29094472/serum-mast-cell-tryptase-measurements-sensitivity-and-specificity-for-a-diagnosis-of-anaphylaxis-in-emergency-department-patients-with-shock-or-hypoxaemia
#2
Abbie Francis, Daniel M Fatovich, Glenn Arendts, Stephen Pj Macdonald, Erika Bosio, Yusuf Nagree, Hugh Ma Mitenko, Simon Ga Brown
OBJECTIVE: Clinical diagnosis of anaphylaxis is principally based on symptoms and signs. However, particularly for patients with atypical symptoms, laboratory confirmation of anaphylaxis would be useful. This study investigated the utility of mast cell tryptase, an available clinical biomarker, for differentiating anaphylaxis from other causes of critical illness, which can also involve mast cell activation. METHODS: Tryptase was measured (ImmunoCAP) in serum from patients with anaphylaxis and non-anaphylactic critical illness (controls) at ED arrival, and after 1-2, 3-4 and 12-24 h...
November 2, 2017: Emergency Medicine Australasia: EMA
https://www.readbyqxmd.com/read/29067211/pilot-assessment-of-vascular-endothelial-growth-factor-receptors-and-trafficking-pathways-in-recurrent-and-metastatic-canine-subcutaneous-mast-cell-tumours
#3
Lucas Da Silva, Carlos E Fonseca-Alves, Jennifer J Thompson, Robert A Foster, Geoffrey A Wood, Renee L Amorim, Brenda L Coomber
Canine subcutaneous mast cell tumour (scMCT) shows less aggressive biological behaviour than cutaneous MCT. Vascular endothelial growth factor receptor 2 (VEGFR2) is expressed by neoplastic cells in canine scMCT, but the relevance of this signalling pathway for disease pathobiology is not clear. The objective of this study was to quantify VEGF-A, VEGFR2, pVEGFR2, the VEGF co-receptor Neuropilin 1 (NRP-1) and the E3 ubiquitin protein ligase c-Cbl in canine scMCT, and to evaluate their association with disease outcome...
August 2017: Veterinary Medicine and Science
https://www.readbyqxmd.com/read/29050294/the-density-of-mast-cells-c-kit-and-tryptase-correlates-with-each-other-and-with-angiogenesis-in-pancreatic-cancer-patients
#4
Michele Ammendola, Cosmo Damiano Gadaleta, Adam Enver Frampton, Tullio Piardi, Riccardo Memeo, Valeria Zuccalà, Maria Luposella, Rosa Patruno, Nicola Zizzo, Pietro Gadaleta, Patrick Pessaux, Rosario Sacco, Giuseppe Sammarco, Girolamo Ranieri
Literature data suggest that inflammatory cells such as mast cells (MCs) are involved in angiogenesis. MCs can stimulate angiogenesis by releasing of well identified pro-angiogenic cytokines stored in their cytoplasm. In particular, MCs can release tryptase, a potent in vivo and in vitro pro-angiogenic factor. Nevertheless, few data are available concerning the role of MCs positive to tryptase in primary pancreatic cancer angiogenesis. This study analyzed the correlation between mast cells positive to c-Kit receptor (c-Kit(+) MCs), the density of MCs expressing tryptase (MCD-T) and microvascular density (MVD) in primary tumor tissue from patients affected by pancreatic ductal adenocarcinoma (PDAC)...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29046192/management-of-adverse-reactions-to-biologic-agents
#5
Ghislaine Annie C Isabwe, Leticia de Las Vecillas Sanchez, Mariana Castells
Hypersensitivity reactions (HSR) to targeted biologic agents present as immediate reactions during infusion or as delayed reactions (after one or more exposures). The new classification includes phenotypes, endotypes, and biomarkers. Phenotypes include immediate type I (immunoglobulin E [IgE] or non-IgE mediated), cytokine release, mixed (type I/cytokine), and immune complexes type III (IgG mediated) reactions as well as delayed type IV reactions. Endotypes include IgE or non-IgE mediated mast cells/basophils activation with elevated serum tryptase and T cells values as well as macrophages, which lead to cytokine production, e...
November 1, 2017: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/29038618/mediators-of-inflammation-and-angiogenesis-in-chronic-spontaneous-urticaria-are-they-potential-biomarkers-of-the-disease
#6
REVIEW
Ilaria Puxeddu, Federico Pratesi, Domenico Ribatti, Paola Migliorini
In chronic spontaneous urticaria (CSU), different pathophysiological mechanisms, potentially responsible for the development of the disease, have been recently described. It is likely that the activation of skin mast cells with consequent release of histamine and other proinflammatory mediators is responsible for vasodilation in the lesional skin of CSU. However, the underlying causes of mast cell activation in the disease are largely unknown and remain to be identified. Thus, in this review, we discuss new insights in the pathogenesis of CSU, focusing on inflammation and angiogenesis...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/29023696/tumor-infiltrating-tryptase-mast-cells-predict-unfavorable-clinical-outcome-in-solid-tumors
#7
Guoming Hu, Shimin Wang, Pu Cheng
The prognostic role of tumor-infiltrating tryptase(+) mast cells in human solid tumors remains controversial. Herein, we conducted a meta-analysis including 28 published studies with 4224 patients identified from PubMed and EBSCO to assess the prognostic impact of tumor-infiltrating tryptase(+) mast cells in human solid tumors. We found that tryptase(+) mast cell infiltration significantly decreased overall survival (OS) and disease-free survival (DFS) in all types of solid tumors. In stratified analyses, tryptase(+) mast cell infiltration was significantly associated with worse OS in non-small cell lung cancer, hepatocellular carcinoma and 5-year survival in colorectal cancer...
October 12, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28941667/advances-and-highlights-in-allergen-immunotherapy-on-the-way-to-sustained-clinical-and-immunologic-tolerance
#8
Margot Berings, Cagatay Karaaslan, Can Altunbulakli, Philippe Gevaert, Mübeccel Akdis, Claus Bachert, Cezmi A Akdis
Allergen immunotherapy (AIT) is an effective treatment strategy for allergic diseases and has been used for more than 100 years. In recent years, however, the expectations on concepts, conduct, statistical evaluation, and reporting have developed significantly. Products have undergone dose-response and confirmative studies in adults and children to provide evidence for the optimal dosage, safety, and efficacy of AIT vaccines using subcutaneous and sublingual delivery pathways in large patient cohorts, ensuring solid conclusions to be drawn from them for the advantage of patients and societies alike...
November 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28931470/free-light-chains-eclectic-multipurpose-biomarker
#9
REVIEW
Umberto Basile, Francesca Gulli, Laura Gragnani, Cecilia Napodano, Krizia Pocino, Gian Ludovico Rapaccini, Michele Mussap, Anna Linda Zignego
The production of antibodies is accompanied by a slight excess of synthesis of κ and λ immunoglobulin light chains; small amounts of them are released in the peripheral blood and can also be found in various body fluids, such as synovial fluid, cerebrospinal fluid, urine and saliva. They are rapidly filtered by the glomerulus and >99% are reabsorbed from the cells of the proximal convoluted tubule, making them present in the urine in only trace amounts. The production of an excess of protein without a reason or a specific function in a biological system is rare...
September 18, 2017: Journal of Immunological Methods
https://www.readbyqxmd.com/read/28919366/prevalence-and-risk-factors-for-fragility-fracture-in-systemic-mastocytosis
#10
Yannick Degboé, Marine Eischen, Delphine Nigon, Pol-André Apoil, Claire Mailhol, Emilie Tournier, Camille Laurent, Katia Hanssens, Olivier Hermine, Carle Paul, Michel Laroche, Cristina Bulai-Livideanu
OBJECTIVES: Systemic mastocytosis (SM) is characterized by the accumulation of mast cells in tissues other than the skin. Bone involvement although frequent has not been thoroughly evaluated. Primary objective was to determine risk factors associated with fragility fractures (FF) in SM. Secondary objectives were to evaluate the ability of bone marrow tryptase (BMT) level to identify patients with FF, and to describe bone involvement in SM. METHODS: We analyzed retrospectively all consecutive patients seen in our expert center, with a diagnosis of SM according to the 2001 WHO criteria, and with complete bone assessment...
September 14, 2017: Bone
https://www.readbyqxmd.com/read/28914203/phytomedicines-are-efficient-complementary-therapies-for-the-treatment-of-atopic-dermatitis-a-review-of-mechanistic-insight-and-recent-updates
#11
Mohamad Aidil Tumpang, Nor Amlizan Ramli, Zahid Hussain
BACKGROUND: Phytomedicines have been well-accepted alternative complementary therapies for the treatment of a wide range of acute and chronic skin inflammatory diseases including chronic herpes, prurigo, psoriasis, and atopic dermatitis (AD). Plethora of in vitro and in vivo studies have evidenced the therapeutic viability of phytomedicines, polyherbal formulations, plant-based materials and their decoctions for the treatment of mild-to-severe AD. OBJECTIVE: This review was aimed to summarize and critically discuss the convincing evidence for the therapeutic effectiveness of phytomedicines for the treatment of AD and explore their anti-AD efficacy...
September 13, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/28830494/in-vivo-evaluation-of-hot-water-extract-of-acorus-gramineus-root-against-benign-prostatic-hyperplasia
#12
Joo-Myung Moon, Hae-Mi Sung, Hyun-Jung Jung, Jae-Won Seo, Ji-Hyang Wee
BACKGROUND: Acorus gramineus has been reported to exhibit various pharmacological effects including inhibition of cholesterol synthesis, enhancement of lipid metabolism, prevention of dementia and inhibition of mast cell growth. According to the Chinese compendium of materia media, it has been reported that Acorus spp. is effective for sedation, dementia prevention as well as diuretic effect. In addition, it showed more than equivalent activity compared to furosoemide, a drug known to be effective in diuretic action in animal model study...
August 22, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28828984/the-efficacy-and-potential-mechanisms-of-chinese-herbal-medicine-on-irritable-bowel-syndrome
#13
Zijuan Bi, Yu Zheng, Jianye Yuan, Zhaoxiang Bian
Irritable bowel syndrome (IBS) is one of the most common functional bowel disorders (FBD), which is characterized by recurrent abdominal pain, abdominal bloating/distention associated with defecation or changed bowel habits. Currently, there is no evidence of obvious anatomic or physiologic abnormalities on the routine diagnostic examinations. There are multiple pathological factors involved in IBS responsible for its heterogeneous nature, although the exact etiology and pathology of IBS are not well known and it is disappointed to develop biomarkers for this disorder...
August 21, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28780940/diagnosis-and-management-of-anaphylaxis-in-precision-medicine
#14
REVIEW
Mariana Castells
Anaphylaxis is the most severe and frightening of the allergic reactions, placing patients at high risk and demanding prompt recognition and immediate management by health care providers. Yet because its symptoms imitate those of other diseases, such as asthma and urticaria, current data suggest that its diagnosis is often missed, with underuse of tryptase measurement; its treatment is delayed, with little use of epinephrine; and its underlying cause or causes are poorly investigated. Deaths from anaphylaxis are difficult to investigate because of miscoding...
August 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28761288/influence-of-repeated-senna-laxative-use-on-skin-barrier-function-in-mice
#15
Satoshi Yokoyama, Keiichi Hiramoto, Yurika Yamate, Kazuya Ooi
BACKGROUND: Senna, one of the major stimulant laxatives, is widely used for treating constipation. Chronic senna use has been reported to be associated with colonic disorders such as melanosis coli and/or epithelial hyperplasia. However, there is no obvious information on the influence of chronic senna use on organs except for the intestine. OBJECTIVE: To clarify the influence of senna laxative use on skin barrier function by repeated senna administration. METHODS: Eight-week-old male hairless mice received senna (10 mg/kg/day) for 21 days...
August 2017: Annals of Dermatology
https://www.readbyqxmd.com/read/28701727/free-immunoglobulin-light-chain-flc-promotes-murine-colitis-and-colitis-associated-colon-carcinogenesis-by-activating-the-inflammasome
#16
Junfan Ma, Dongyang Jiang, Xiaoting Gong, Wenwei Shao, Zhu Zhu, Weiyan Xu, Xiaoyan Qiu
Numerous studies have demonstrated that free Ig light chain (FLC), a novel inflammation mediator, participates in many inflammatory diseases by activating mast cells and extending the survival of neutrophils. However, it remains unclear whether FLC is involved in colitis and colitis-associated colon carcinogenesis (CAC). In this study, we found a significant increase in FLC in murine models of DSS (Dextran Sulfate Sodium Salt)-induced colitis and CAC compared to controls. Peptide F991, a functional blocker of FLC, significantly attenuated colitis progression, which included abrogating the development of diarrhea and tumor burden, elevating survival rate, greatly reducing the infiltration of inflammatory cells (such as ROS(+) active neutrophils), especially reducing tumorigenesis in CAC...
July 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28663317/a-sputum-gene-expression-signature-predicts-oral-corticosteroid-response%C3%A2-in%C3%A2-asthma
#17
Bronwyn S Berthon, Peter G Gibson, Lisa G Wood, Lesley K MacDonald-Wicks, Katherine J Baines
Biomarkers that predict responses to oral corticosteroids (OCS) facilitate patient selection for asthma treatment. We hypothesised that asthma patients would respond differently to OCS therapy, with biomarkers and inflammometry predicting response.Adults with stable asthma underwent a randomised controlled cross-over trial of 50 mg prednisolone daily for 10 days (n=55). A six-gene expression biomarker signature (CLC, CPA3, DNASE1L3, IL1B, ALPL and CXCR2) in induced sputum, and eosinophils in blood and sputum were assessed and predictors of response were investigated (changes in forced expiratory volume in 1 s (ΔFEV1), six-item Asthma Control Questionnaire score (ΔACQ6) or exhaled nitric oxide fraction (ΔFeNO))...
June 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28573874/role-of-mast-cells-in-the-induction-of-dry-skin-in-a-mouse-model-of-rheumatoid-arthritis
#18
Kenji Goto, Keiichi Hiramoto, Hijiri Kita, Kazuya Ooi
PURPOSE: Rheumatoid arthritis (RA) is known to induce dry skin as an extra-articular symptom. However, the mechanisms behind the induction are unclear. In this study, we utilized an arthritis mouse model to simulate RA to reveal the relationship between arthritis and dry skin. MATERIALS AND METHODS: DBA/1JJmsSlc control mice (n = 5) and DBA/1JJmsSlc collagen-induced arthritis mouse model (arthritis mice; n = 5) were used. We measured transepidermal water loss (TEWL) and capacitance to reveal the effect of arthritis on skin barrier function...
June 21, 2017: Cutaneous and Ocular Toxicology
https://www.readbyqxmd.com/read/28536479/circulating-microrna-214-and-126-as-potential-biomarkers-for-canine-neoplastic-disease
#19
Kazuki Heishima, Yukie Ichikawa, Kyoko Yoshida, Ryota Iwasaki, Hiroki Sakai, Takayuki Nakagawa, Yuiko Tanaka, Yuki Hoshino, Yasuhiko Okamura, Mami Murakami, Kohji Maruo, Yukihiro Akao, Takashi Mori
Circulating microRNAs in the blood may provide diagnostic and prognostic information about canine neoplastic diseases, and their profiles may be conserved between human and canine species. We performed RT-qPCR to obtain the profiles of circulating plasma microRNA-214 and -126 in total 181 cases of canine neoplastic diseases and healthy controls. MicroRNA-214 levels were high in 2 epithelial tumours (thyroid and mammary carcinomas) and 4 non-epithelial tumours (osteosarcoma, histiocytic sarcoma, chondrosarcoma, and hemangiosarcoma)...
May 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28489286/sustained-activation-of-erk1-2-mapk-in-schwann-cells-causes-corneal-neurofibroma
#20
Paola Bargagna-Mohan, Akihiro Ishii, Ling Lei, Daniel Sheehy, Saagar Pandit, Grace Chan, Rashmi Bansal, Royce Mohan
Recent studies have shown that constitutive activation of extracellular signal-regulated kinases 1 and 2 (ERK1/2) in Schwann cells (SCs) increases myelin thickness in transgenic mice. In this secondary analysis, we report that these transgenic mice develop a postnatal corneal neurofibroma with the loss of corneal transparency by age six months. We show that expansion of non-myelinating SCs, under the control of activated ERK1/2, also drive myofibroblast differentiation that derives from both SC precursors and resident corneal keratocytes...
September 2017: Journal of Neuroscience Research
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