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. 2022 May 30;13:867516. doi: 10.3389/fimmu.2022.867516

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Copyright © 2022 Wang, Liu, Chen, Fang, Li, Yuan, Qian, Yin, Yu, Fu, Zhang and Li

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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NLRP3 inflammasome induced by NETs promotes NSCLC progression is associated with the activation of NF-κB. (A) The protein expression level of p-p50, p50, p-p65, p65 in NSCLC cells treated with NETs was detected by Western blotting. (B) Nuclear translocation of NF-κB in A549 and SK-MES-1 cells treated with NETs or combined with DNase I were detected by con-focal microscopy (magnification, 3000×; scale bar, 5μm). Immunofluorescence assays (C) and Western blot (D) were used to detect the effect of NETs on NLRP3 inflammasome in A549 and SK-MES-1 cells after p50 knockdown (magnification, 200×; scale bar, 50 μm). (E) Downregulation of p50 attenuated the effect on promoting EMT of NETs in NSCLC cells by Western blot. (F, G) Downregulated p50 reverses NETs-induced promotion of NSCLC cells metastasis using transwell assay (magnification, 100×) (E) and wound healing assays (magnification, 50×) (F).