Altered miRNA expression in pulmonary sarcoidosis

BMC Medical Genetics
Justyna KiszałkiewiczEwa Brzeziańska-Lasota

Abstract

miRNAs control important cellular functions including angiogenesis/angiostasis or fibrosis and reveal altered expression during pathological processes in the lung. The aim of the study was to investigate the expression of selected miRNAs (miR-let7f, miR-15b, miR-16, miR-20a, miR-27b, miR-128a, miR-130a, miR-192 miR-221, miR-222) in patients with pulmonary sarcoidosis (n = 94) and controls (n = 50). The expression was assessed by q-PCR in BALF cells and peripheral blood lymphocytes (PB lymphocytes). For statistical analysis, the Kruskal-Wallis test, Mann-Whitney U- test, Neuman-Keuls' multiple comparison test, and Spearman's rank correlation were used. In BALF cells, significantly higher expression of miR-192 and miR-221 and lower expression of miR-15b were found in patients than controls. MiR-27b, miR-192 and miR-221 expression was significantly higher in patients without parenchymal involvement (stages I) than those at stages II-IV. Patients with acute disease demonstrated significantly higher miR-27b, miR-192 and miR-221 expression than those with insidious onset. For PB lymphocytes, patients demonstrated significantly greater miR-15b, miR-27b, miR-192, miR-221 and miR-222 expression, but lower miR-let7f and miR-130a expressi...Continue Reading

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Methods Mentioned

BETA
biopsy
X-ray
bronchoalveolar lavage
electrophoresis
PCR

Software Mentioned

StatSoft

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