Coronarin D induces reactive oxygen species-mediated cell death in human nasopharyngeal cancer cells through inhibition of p38 MAPK and activation of JNK.

OBJECTIVES

This study aimed to investigate the relationship between the neutrophil extracellular traps (NET) and NETosis findings and disease activity in Behçet disease (BD).

METHODS

The study group consisted of 30 active BD patients and 10 healthy individuals as controls. Serum and saliva samples were collected from the patients during their active and remission periods. A subset of them were followed longitudinally. Serum and saliva cf-DNA, NE, MPO, and cit-H3 levels were measured as indirect NETosis findings, subsequently the results were adjusted based on the peripheral blood neutrophil counts. Unadjusted and adjusted levels of the NETosis findings were evaluated.

RESULTS

In active BD, unadjusted serum cf-DNA and NE levels were significantly higher than in controls, whereas adjusted serum MPO and cit-H3 levels were found to be lower. In inactive BD, unadjusted serum NE levels remained elevated compared to controls, while unadjusted serum MPO, adjusted serum MPO, and adjusted serum cit-H3 levels were lower. No significant differences were observed in salivary NETosis findings between the patients and controls. Longitudinal follow-up revealed a decrease in both unadjusted serum cf-DNA and saliva cf-DNA levels in parallel with reduced clinical activity. Saliva and unadjusted serum cf-DNA showed a positive correlation with inflammatory markers, whereas adjusted serum MPO and cit-H3 correlated negatively.

CONCLUSIONS

Indirect NETosis findings varied in relation to the systemic and/or local activity of BD patients. The changes after adjustment suggest that serum NETosis markers can be influenced by increased neutrophil turnover during the active phase of the disease.