Fatty liver is associated with blood pathways of inflammatory response, immune system activation and prothrombotic state in Young Finns Study
Tuukka Taipale; Olli Raitakari; Leo-Pekka Lyytikäinen; Markus Juonala; Melanie Waldenberger; Emma Raitoharju; Terho Lehtimäki; Niku Oksala; Nina Hutri-Kähönen; Nina Mononen; Mika Kähönen; Ilkka Seppälä; Thomas Illig
Fatty liver is associated with blood pathways of inflammatory response, immune system activation and prothrombotic state in Young Finns Study
Tuukka Taipale
Olli Raitakari
Leo-Pekka Lyytikäinen
Markus Juonala
Melanie Waldenberger
Emma Raitoharju
Terho Lehtimäki
Niku Oksala
Nina Hutri-Kähönen
Nina Mononen
Mika Kähönen
Ilkka Seppälä
Thomas Illig
NATURE PUBLISHING GROUP
Julkaisun pysyvä osoite on:
https://urn.fi/URN:NBN:fi-fe2021042719440
https://urn.fi/URN:NBN:fi-fe2021042719440
Tiivistelmä
Fatty liver (FL) disease is the most common type of chronic liver disease. We hypothesized that liver's response to the process where large droplets of triglyceride fat accumulate in liver cells is reflected also in gene pathway expression in blood. Peripheral blood genome wide gene expression analysis and ultrasonic imaging of liver were performed for 1,650 participants (316 individuals with FL and 1,334 controls) of the Young Finns Study. Gene set enrichment analysis (GSEA) was performed for the expression data. Fourteen gene sets were upregulated (false discovery rate, FDR < 0.05) in subjects with FL. These pathways related to extracellular matrix (ECM) turnover, immune response regulation, prothrombotic state and neural tissues. After adjustment for known risk factors and biomarkers of FL, we found i) integrin A4B1 signaling, ii) leukocyte transendothelial migration, iii) CD40/CD40L and iv) netrin-1 signaling pathways to be upregulated in individuals with FL (nominal p < 0.05). From these all but not ii) remained significantly upregulated when analyzing only subjects without history of heavy alcohol use. In conclusion, FL was associated with blood gene sets of ECM turnover, inflammatory response, immune system activation and prothrombotic state. These may form a systemic link between FL and the development of cardiovascular diseases.
Kokoelmat
- Rinnakkaistallenteet [19207]