Variability of endogenous deoxyribonuclease activity and its pathophysiological consequences
2022
Janovičová, Ľubica | Čonka, Jozef | Lauková, Lucia | Celec, Peter
Deoxyribonucleases (DNases) are enzymes that cleave DNA. Some DNases are secreted outside of cells where they can cleave extracellular DNA (ecDNA). High concentration of ecDNA is associated with diseases such as sepsis, preeclampsia, and systemic lupus. DNA can be released from dying cells and is immunogenic. DNases cleave ecDNA and might prevent activation of the immune system. Low DNase activity could be disadvantageous in diseases where high amounts of ecDNA are released from dying cells. The relationship between DNase activity and ecDNA remains unknown. The lack of standard values in DNase activity makes the studies difficult to compare. This review focuses on summarizing methods for DNase activity measurements, the possible implication of decreased DNase activity in diseases, and the impact on diseases associated with a high concentration of ecDNA.
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