“…In general, under normal conditions, nuclei DNA strands in neutrophils are highly wrapped around histones into heterochromatin with protein-DNA interactions to constrain the potential energy for DNA extension and transcriptional activity ( Shao et al, 2021a ; Sorensen & Borregaard, 2016 ). However, in the challenge of certain stimuli such as exogenous invasion, intracellular calcium ion flux and agents including lipopolysaccharide (LPS) and phorbol 12-myristate 13-acetate (PMA), the condensed DNA strands in nucleus are uncoiled as fibrous polymers and released outside the nucleus to form NETs ( Awasthi et al, 2023 ; Domer et al, 2021 ; Radermecker et al, 2019 ; Shao et al, 2021a ). Based on the current knowledge, two proteases are vital in the process of NET formation, namely peptidyl arginine deiminase 4 (PAD4) and NE ( Al-Kuraishy et al, 2022 ; Shao et al, 2021a ; Zhu et al, 2022 ).…”