LIN Si,ZHU Hua,QIN Hui-zhen,et al.Effect of Stemona tuberosa Alkaloids on Apoptosis of SMMC-7721 Cells and Expression of Bcl-2, Bax, and Cleaved Caspase-3[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(19):73-79.
LIN Si,ZHU Hua,QIN Hui-zhen,et al.Effect of Stemona tuberosa Alkaloids on Apoptosis of SMMC-7721 Cells and Expression of Bcl-2, Bax, and Cleaved Caspase-3[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(19):73-79. DOI: 10.13422/j.cnki.syfjx.20211921.
Effect of Stemona tuberosa Alkaloids on Apoptosis of SMMC-7721 Cells and Expression of Bcl-2, Bax, and Cleaved Caspase-3
alkaloids on the apoptosis of human hepatoma SMMC-7721 cells and the expression of apoptosis-related proteins including B lymphocytoma-2 (Bcl-2), Bcl-2-associated X protein (Bax), and cleaved cysteinyl aspartate-specific protease-3 (cleaved Caspase-3).
Method
2
SMMC-7721 cells were routinely cultured, passaged, and treated with various concentrations (50, 75, 112, 167, and 250 mg·L
-1
) of
S. tuberosa
alkaloids, while those in the blank control group were only treated with 10% fetal bovine serum. The cell proliferation was determined by tetrazolium bromide (MTT) colorimetry and colony assay and the cell apoptosis by Hoechst 33258 staining. The protein expression levels of Bcl-2, Bax, and cleaved Caspase-3 were detected by Western blot.
Result
2
S. tuberosa
alkaloids inhibited the proliferation of SMMC-7721 cells, and the inhibition rate was significantly increased in comparison with that in the blank control group (
P
<
0.01), with the half maximal inhibitory concentrations (IC
50
) at 24 h, 48 h, and 72 h being (173.36±8.75), (112.14±16.50), and (96.41±2.60)mg·L
-1
, respectively. The cell colony-inhibitory activity was significantly increased in a dose-dependent manner (
P
<
0.01). Compared with the blank control group,
S. tuberosa
alkaloids promoted the apoptosis of SMMC-7721 cells, manifested as increased number of apoptotic cells and elevated apoptotic rate (
P
<
0.01). The typical morphological changes such as brightly blue-fluorescent condensed nuclei, cytoplasmic shrinking, and karyopyknosis were found under the upright fluorescence microscope. As revealed by comparison with the blank control group, the expression of Bcl-2 was significantly down-regulated (
P
<
0.01), while the protein expression levels of pro-apoptotic protein Bax and cleaved Caspase-3 in the 75, 112, 167, and 250 mg·L
-1
S. tuberosa
alkaloids groups were significantly up-regulated (
P
<
0.01).
Conclusion
2
S. tuberosa
alkaloids inhibit the proliferation of SMMC-7721 cells and promote their apoptosis possibly by inhibiting Bcl-2 protein expression and promoting Bax and cleaved Caspase-3 protein expression.
关键词
Keywords
references
SUNG H , FERLAY J , SIEGEL R L , et al . Global cancer statistics 2020: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries [J]. CA Cancer J Clin , 2021 , 71 ( 3 ): 209 - 249 .
KONG C Q , CHEN X C , QIU G H , et al . Effects of miRNA-140 on the growth and clinical prognosis of SMMC-7721 hepatocellular carcinoma cell line [J]. Bio Med Res Int , 2021 , 2021( 1 ): 1 - 14 .
CHENGZ , LI X , DING J . Characteristics of liver cancer stem cells and clinical correlations [J]. Cancer Lett , 2016 , 379 ( 2 ): 230 - 238 .
CHENG B , HUANG Z , WU L , et al . Activation of human hepatic stellate cells enhances the metastatic ability of hepatocellular carcinoma cells via up-regulation of interleukin-1 β [J]. J Buon , 2021 , 26 ( 2 ): 435 - 443 .
FREDDIE B , JACQUES F , ISABELLE S , et al . Global cancer statistics 2018: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries [J]. CA cancer J Clin , 2018 , 68 ( 6 ): 394 - 424 .
CHUNG H S , HON P M , LIN G , et al . Antitussive activity of stemona alkaloids from Stemona tuberosa [J]. Planta Med , 2003 , 69 ( 10 ): 914 - 920 .
LEE K Y , JEONG E J , SANG H S , et al . Stemona alkaloids isolated from Stemona tuberosa roots and their inhibitory activity on lipopolysaccharide-induced nitric oxide production [J]. Rec Nat Prod , 2015 , 10 ( 1 ): 109 - 112 .
BUT P H , SHAW PC , LIN G E , et al . Authentication and quality assessment of the antitussive Herb Baibu(Radix Stemonae) [J]. Adv Bot Res , 2012 , 2012( 62 ): 1 - 33 .
ACHIM W , REGINA B , BINJE V , et al . Hepatocyte-specific deletion of the antiapoptotic protein myeloid cell leukemia-1 triggers proliferation and hepatocarcinogenesis in mice [J]. Hepatology , 2010 , 51 ( 4 ): 1226 - 1236 .
LIU M , YANG S , JIN L , et al . Chemical constituents of the ethyl acetate extract of Belamcanda chinensis (L.) dc roots and their antitumor activities [J]. Molecules , 2012 , 17 ( 5 ): 6156 - 6169 .
HOU X L , TONG Q , WANG W Q , et al . Dihydromyricetin protects endothelial cells from hydrogen peroxide-induced oxidative stress damage by regulating mitochondrial pathways [J]. Life Sci , 2015 , 130 ( 14 ): 38 - 46 .
MANNING B D , TOKER A . Akt/PKB signaling: navigating the network [J]. Cell , 2017 , 169 ( 3 ): 381 - 405 .
GALLUZZI L , PIETROCOLA F , BRAVO-SAN P J M , et al . Autophagy in malignant transformation and cancer progression [J]. Embo J , 2015 , 34 ( 7 ): 856 - 880 .