Cell communication and signaling : CCS · 2025
Effects of calcium oxalate crystals on neutrophil cellular proteome and functions: implications for nephrolithiasis.
СтатьяНазвание и аннотация: Перевод в очереди
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Lertprapai Chanettee, Peerapen Paleerath, Thongboonkerd Visith
Аннотация
BACKGROUND: The majority of stone formers (87.5-95.9%) exhibit mild to moderate interstitial inflammation surrounding the stone. Neutrophils and neutrophil-derived genes/proteins have been found in renal papillae, stone matrix and urine of calcium oxalate monohydrate (COM) stone formers. However, neutrophil-crystal interactions, especially responses of neutrophils to COM crystals, remained unknown.
METHODS: This study addressed the effects of COM crystals on neutrophil cellular proteome and functions, including phagocytosis, activation/degranulation, neutrophil extracellular traps (NETs) formation and reactive oxygen species (ROS) production.
RESULTS: Label-free quantitative (LFQ) proteomics using nanoLC-ESI-Qq-TOF MS/MS with highly stringent criteria revealed that COM caused altered levels of 22 neutrophil proteins involved mainly in immune responses. Investigating neutrophil innate immune functions using flow cytometry, immunofluorescence/fluorescence imaging, ELISA and dichlorodihydrofluorescein diacetate (DCFH-DA) assay revealed that COM enhanced neutrophil phagocytic activity, NETs formation, activation/degranulation and ROS production. Moreover, secretome (a set of secretory products) from COM-treated neutrophils induced the recruitment of macrophages to phagocytose the COM-treated neutrophils.
CONCLUSIONS: These findings illustrate the expression and functional responses of neutrophils to COM crystals and implicate the important roles that neutrophils play in nephrolithiasis.
METHODS: This study addressed the effects of COM crystals on neutrophil cellular proteome and functions, including phagocytosis, activation/degranulation, neutrophil extracellular traps (NETs) formation and reactive oxygen species (ROS) production.
RESULTS: Label-free quantitative (LFQ) proteomics using nanoLC-ESI-Qq-TOF MS/MS with highly stringent criteria revealed that COM caused altered levels of 22 neutrophil proteins involved mainly in immune responses. Investigating neutrophil innate immune functions using flow cytometry, immunofluorescence/fluorescence imaging, ELISA and dichlorodihydrofluorescein diacetate (DCFH-DA) assay revealed that COM enhanced neutrophil phagocytic activity, NETs formation, activation/degranulation and ROS production. Moreover, secretome (a set of secretory products) from COM-treated neutrophils induced the recruitment of macrophages to phagocytose the COM-treated neutrophils.
CONCLUSIONS: These findings illustrate the expression and functional responses of neutrophils to COM crystals and implicate the important roles that neutrophils play in nephrolithiasis.