The characteristics of neutrophil extracellular traps produced by all-trans retinoic acid-induced dHL-60 under PMA stimulation.
10.7507/1001-5515.202205002
- Author:
Wang LIU
1
;
Jinhua FANG
2
;
Tiantian HONG
1
;
Jiaqi HUANG
1
;
Baisong ZHAO
3
;
Ying FANG
1
;
Jianhua WU
1
;
Jiangguo LIN
2
Author Information
1. School of Biosciences and Bioengineering, South China University of Technology, Guangzhou 510006, P. R. China.
2. Research Center of Medical Sciences, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, P. R. China.
3. Department of Anesthesiology, Guangzhou Women and Children's Medical Center, Guangzhou 510623, P. R. China.
- Publication Type:Journal Article
- Keywords:
All-trans retinoic acid;
Differentiation;
HL-60;
Neutrophil extracellular traps
- MeSH:
Humans;
Extracellular Traps;
Tetradecanoylphorbol Acetate/pharmacology*;
Neutrophils;
HL-60 Cells;
Tretinoin/pharmacology*
- From:
Journal of Biomedical Engineering
2022;39(5):909-918
- CountryChina
- Language:Chinese
-
Abstract:
Extracellular traps released by neutrophils (neutrophil extracellular traps, NETs) are a double-edged sword, and understanding the mechanism of NET formation is of great significance for disease treatment. However, the short lifespan, the large individual differences, and the inability to perform gene editing render it difficult to decipher NET formation using neutrophils. It is necessary to find a model cell to replace neutrophils to study the mechanism of NET formation. In this study, we used different concentrations (0, 0.1, 1, and 10 μmol/L) of all-trans retinoic acid (ATRA) to differentiate HL-60 cells for different days (1, 3, 5, and 7 days). By detecting the cell viability and nuclear morphology of cells, we confirmed that HL-60 cells were differentiated to neutrophil-like cells (dHL-60) after treated with ATRA for at least 5 days. Using immunofluorescence staining to detect the formation of NETs, we demonstrated that dHL-60 cells differentiated for 5 days with 1 μmol/L ATRA could generate NETs comparable to those produced by neutrophils upon phorbol 12-myristate 13-acetate (PMA) stimulation, without histone H3 citrullination. Furthermore, the formation of NETs by dHL-60 cells were NADPH-dependent and PAD4-independent, consistent with neutrophils. Taken together, these observations suggest that dHL-60 cells differentiated with 1 μmol/L ATRA for 5 days can be used as a model cell for neutrophils to study the mechanism of NET formation.
