Mechanism of NLRP3 inflammasome activation caused by albumin in renal tubulointerstitial cells / 临床与实验病理学杂志
Chinese Journal of Clinical and Experimental Pathology
;
(12): 1341-1345, 2017.
Artículo
en Chino
| WPRIM
| ID: wpr-695048
ABSTRACT
Purpose To study the mechanism of NLRP3 inflammasome activation caused by albumin in renal tubulointerstitial cells.Methods Cathepsin B was detected by immunohistochemistry in renal biopsy tissue of 30 membranous nephropathy patients which had different levels of proteinuria.HK-2 cells were stimulated by albumin,and then were treated by high concentration KCl,CA 074 Me and DPI,which was Cathepsin B inhibitor and ROS inhibitor.Finally,IL-1β and IL-18 were detected by Western blot and real time PCR,respectively.Results The expression of Cathepsin B in tubulointerstitial cells was significantly higher in patients with severe proteinuria than that in patients with mild proteinuria (P < 0.05).CA 074 Me and DPI significantly reduced IL-1β and IL-18 secretion in HK-2 cells stimulated by albumin (P < 0.05),but high concentration KCl did not result in this change (P > 0.05).Conclusion NLRP3 inflammasome is activated via Cathepsin B release and increases ROS production caused by proteinuria,but not via K + efflux.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Idioma:
Chino
Revista:
Chinese Journal of Clinical and Experimental Pathology
Año:
2017
Tipo del documento:
Artículo
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