Search results for "Mucin"

Analysis of Tear Protein Patterns for the Diagnosis of Dry Eye

2002

Dry eye syndrome occurs very frequently in the industrial world. In the United States, one of five people, 59 millions patients, suffer from symptoms of this disease (Eagle Vision, Yankelovich and Partners, 1997), and the number of patients has doubled in the last 10 years. 1-4 Diagnosis and treatment of dry eye syndrome are challenging. In fact, a curative therapy of this disease does not exist. Dry eye is a disease with various symptoms resulting from aqueous, mucin or lipid deficiency. Different diseases, among them Sjogren’s syndrome, can cause this deficiency, but most patients do not have accompanying disorders.

Synthetic multivalent glycopeptide-lipopeptide antitumor vaccines: impact of the cluster effect on the killing of tumor cells.

2014

Multivalent synthetic vaccines were obtained by solid-phase synthesis of tumor-associated MUC1 glycopeptide antigens and their coupling to a Pam3 Cys lipopeptide through click reactions. These vaccines elicited immune responses in mice without the use of any external adjuvant. The vaccine containing four copies of a MUC1 sialyl-TN antigen showed a significant cluster effect. It induced in mice prevailing IgG2a antibodies, which bind to MCF-7 breast tumor cells and initiate the killing of these tumor cells by activation of the complement-dependent cytotoxicity complex.

Perfluoroalkylated amphiphilic MUC1 glycopeptide antigens as tools for cancer immunotherapy.

2010

The synthesis of perfluoroalkylated glycopeptide antigens and their specific binding to anti-MUC1 mouse antibodies is reported.

Bacteriophage Adherence to Mucus Mediates Preventive Protection against Pathogenic Bacteria

2019

The mucosal surfaces of animals are habitat for microbes, including viruses. Bacteriophages—viruses that infect bacteria—were shown to be able to bind to mucus. This may result in a symbiotic relationship in which phages find bacterial hosts to infect, protecting the mucus-producing animal from bacterial infections in the process. Here, we studied phage binding on mucus and the effect of mucin on phage-bacterium interactions. The significance of our research is in showing that phage adhesion to mucus results in preventive protection against bacterial infections, which will serve as basis for the development of prophylactic phage therapy approaches. Besides, we also reveal that exposure to m…

Design of New Polyaspartamide Copolymers for siRNA Delivery in Antiasthmatic Therapy

2020

Here, a novel protonable copolymer was realized for the production of polyplexes with a siRNA (inhibitor of STAT6 expression in asthma), with the aim of a pulmonary administration. The polycation was synthesized by derivatization of &alpha

Correlaciones clínicas, morfológicas y de calidad de vida en pacientes afectos de rinosinusitis crónica con poliposis nasal

2021

INTRODUCCIÓN La rinosinusitis crónica con pólipos nasosinusales (RSCcPN) es una en-fermedad desafiante que tiene un impacto significativo en la calidad de vida (CdV) de los pacientes. Los eosinófilos se consideran las células in-flamatorias más importantes en la patogénesis de la rinosinusitis con pólipos nasales. La posibilidad de predecir la CdV en los pacientes con RSCcPN permitiría optimizar su manejo y mejorar los resultados. OBJETIVO Conocer la asociación entre la CdV mediante el cuestionario Sinonasal Outcome Test -22 (SNOT-22) y parámetros histopatológicos y molecula-res (incluyendo eosinofilia y expresión de Mucina 1 –MUC1) en pacien-tes con RSCcPN. Los objetivos secundarios incluy…

Mucin 1 deficiency mediates corticosteroid insensitivity in asthma

2019

BACKGROUND: The loss of corticosteroid efficacy is an important issue in severe asthma management and may lead to poor asthma control and deterioration of airflow. Recent data indicate that Mucin 1 (MUC1) membrane mucin can mediate corticosteroid efficacy in chronic rhinosinusitis, but the role of MUC1 in uncontrolled severe asthma is unknown. The objective was to analyze the previously unexplored role of MUC1 on corticosteroid efficacy in asthma. METHODS: Mucin 1 expression was evaluated by real-time PCR in human bronchial epithelial cells (HBEC) and blood neutrophils from uncontrolled severe asthma (n=27), controlled mild asthma (n=16), and healthy subjects (n=13). IL-8, MMP9, and GM-CSF …

Synthesis and Biological Evaluation of a Multiantigenic Tn/TF-Containing Glycopeptide Mimic of the Tumor-Related MUC1 Glycoprotein

2006

Qualitative mucin disorders in patients with primary Sjögren's syndrome:a literature review

2020

Background It is a common opinion that Primary Sjögren Syndrome (pSS) damages the exocrine glands and determines the reduction of secreted saliva, some studies show that there are qualitative anomalies of the mucins produced in saliva, including MUC7, MUC5B, MUC1. The purpose of this study is to trace all the information useful to establish whether there is a qualitative or quantitative defect of the mucins in the pSS. Material and Methods We reviewed the literature by looking for publications relevant to the topic in electronic databases. Sixteen articles met the search criteria. The studies were divided into two categories, those that studied the rheological characteristics of the saliva …