Abstract
Patients with a combination of bronchial asthma (BA) and chronic obstructive pulmonary disease (COPD) crossed phenotype (CP) BA and COPD are a separate nosological group. CP BA and COPD is a multifactorial disease. There is a hypothesis that genetic control of CP BA and COPD development at the posttranscriptional level is carried out by regulation of gene expression involving microRNA (miR) miR-21 and miR-146a; these molecules can be considered as potential diagnostic markers of CP BA and COPD. The purpose of this study was to evaluate the expression of miR-21, miR-146a in male with a combination of BA and COPD compared to those with isolated BA and COPD. Materials . We examined male patients (n = 65) (n = 48: 19 patients with CP BA and COPD; 14 patients with BA and COPD) and control group (n = 17). All the patients underwent a comprehensive clinical-laboratory and instrumental examination. The expression of miR-21, miR-146a was estimated in peripheral blood by a real-time polymerase chain reaction. Results . CP BA and COPD have lower levels of miR-21 and miR-146a than the BA, COPD, and control groups. CP BA and COPD patients have low levels of miR-21 and miR-146a associated with shorter duration of the disease and the presence of comorbid pathology (hypertension, angina pectoris), revealed in patients with the disease debut at an older age. Low miR-21 was associated with lower reversibility of bronchial obstruction in these patients, despite eosinophilic inflammation in the bronchi. Conclusion . It has been demonstrated that within the framework of complex diagnostics of CP BA and COPD in males it is reasonable to evaluate miR-146a and miR-21 expression in peripheral blood. MicroRNA miR-146a and miR-21 are promising molecular targets for phenotype-specific therapy in males with CP BA and COPD.
Highlights
Бронхиальная астма (БА) и хроническая обструктивная болезнь легких (ХОБЛ) относятся к наиболее распространенным хроническим заболеваниям органов дыхания и различаются по этиологии, патогенезу, клинической картине и стратегиям фармакотерапии
Несмотря на то, что начало заболевания перекрестный фенотип (ПФ) БА + ХОБЛ возникало раньше по сравнению с изолированными БА и ХОБЛ, отмечена следующая зависимость: чем старше возраст пациентов при дебюте ПФ БА + ХОБЛ и меньше продолжительность болезни, тем меньше уровни miR-21 и miR-146а соответственно
Williams A.E., Larner-Svensson H., Perry M.M. et al MicroRNA expression profiling in mild asthmatic human airways and effect of corticosteroid therapy
Summary
Федеральное государственное бюджетное образовательное учреждение высшего образования «Первый Санкт-Петербургский государственный медицинский университет имени академика И.П.Павлова» Министерства здравоохранения Российской Федерации: 197022, Санкт-Петербург, ул.
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