Effect of 1,2-dichloroethane-induced apoptosis on the expression of P53,BCL-2 and BAX proteins in SH-SY5Y cells
10.11763/j.issn.2095-2619.2017.02.008
- Author:
Si LI
1
;
Hongling LI
;
Na ZHAO
;
Xiangrong SONG
;
Haozhong LIU
;
Longyuan JIANG
;
Jiabin CHEN
;
Hailan WANG
Author Information
1. Department of Cardiac Surgery ICU,the First Affiliated Hospital,Sun Yat-sen University Guangzhou,Guangdong 510080,China
- Publication Type:Journal Article
- Keywords:
1,2-Dichloroethane;
SH-SY5Y cell;
Apoptosis;
P53;
B cell lymphoma/leukemia-2(BCL-2);
BCL-2 associated X protein
- From:
China Occupational Medicine
2017;44(02):164-175
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE: To explore the effect of 1,2-dichloroethane(1,2-DCE) induced apoptosis on the expression of related proteins in human neuroblastoma cells(SH-SY5 Y cells). METHODS: SH-SY5 Y cells were cultured in complete medium with 1,2-DCE at final concentrations of 0,10,20,30,40,50,60,70 and 80 mmol/L. After being cultured for24 hours,the apoptosis of SH-SY5 Y cells was tested by flow cytometry using annexin Ⅴ-fluorescein isothiocyanate and propidium iodide. Western blot was used to detect the protein expression of P53,B cell lymphoma/leukmia-2(BCL-2)and BCL-2 associated X protein(BAX). RESULTS: At 1,2-DCE concentrations of 0-80 mmol/L,the total apoptosis rate of SH-SY5 Y cells increased with 1,2-DCE concentrations in a dose-dependent manner(P < 0. 01). At 1,2-DCE concentrations of 30-80 mmol/L,the early apoptosis rate and total apoptosis rate of SH-SY5 Y cells increased significantly than the control group(P < 0. 05). Compared with the other groups,the protein expression of P53 was the lowest when the1,2-DCE concentration was 20 mmol/L(P < 0. 05),and the protein expression of BCL-2 and the BCL-2/BAX ratio were the lowest when the 1,2-DCE concentration was 70 mmol/L(P < 0. 05). There is no dose-response relationship in the1,2-DCE concentrations and the protein expression levels of P53,BCL-2 and BAX,and BCL-2/BAX ratio. Linear multiple regression analysis revealed that the total apoptosis rate of SH-SY5 Y cells treated with 1,2-DCE was associated with the protein expression of P53 and BCL-2,and BCL-2/BAX ratio(P < 0. 05). CONCLUSION: 1,2-DCE could inhibit the apoptosis of SH-SY5 Y cells. The mechanisms may be related to the changes of P53 and BCL-2 protein expression,and BCL-2/BAX relative amount.
