Effects of three generations of tretinoids on the apoptosis of and caspase expressions in human cutaneous squamous cell carcinoma cell line SCL-1
- VernacularTitle:三种维A酸对皮肤鳞状细胞癌细胞SCL-1凋亡及Caspases的影响
- Author:
Xiuying LIN
;
Chundi HE
;
Xin JIN
;
Jiang CHEN
;
Yakun WANG
;
Ting XIAO
;
Guangyu JIN
;
Kaibo WANG
;
Yi JIANG
;
Hongduo CHEN
- Publication Type:Journal Article
- Keywords:
Tretinoin;
Apoptosis;
Carcinoma,squamous cell;
Caspases
- From:
Chinese Journal of Dermatology
2008;41(9):601-604
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the effects ofthrce generations oftretinoids on the apoptosis of and caspase expressions in human cutaneous squamous cell carcinoma cell line SCL-1. Methods SCL-1 cells were cultured in vitro in the presence of three tretinoins, namely all-trans retinoic acid (ATRA), acitrefln and tazarotene at a concentration of 1×10-5 mol/L. On day 1, 3, 5, MTT assay and ELISA were used to detect the cell proliferation and apoptosis of these SCL-1 cells respectively; on day3, flow cytometry with Annexin V/PI was applied to analyze the cell cycle and early apoptosis, Western blot to measure the protein expressions of caspase-8 and caspase-9 in these cells. Results The growth of SCL-1 cells could be inhibited by ATRA, acitretin or tazarotene of 1×10-5 mol/L in a time-dependent manner (all P<0.01). All the three tretinoids could induce the cell apoptosis of SCL-1 cells (P<0.01), arrest them in G1-phase, and activate caspase-8 and caspase-9 (F=35.50, 25.79, respectively, both P<0.01). Of the three tretinoins, acitretin exerted the strongest effect on all the parameters tested. Conclusions Tretinoins can inhibit the growth and induce the apoptosis of cutaneous squamous carcinoma cells, which may be mediated through Fas- and mitochondria-way.
