ArticleWorld journal of gastroenterology2002
The sensitivity of digestive tract tumor cells to As2O3 is associated with the inherent cellular level of reactive oxygen species.
Article in World journal of gastroenterology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Therapeutic mechanism of ginkgo biloba exocarp polysaccharides on gastric cancer.World journal of gastroenterology · 2003Trial
- Article
- The conformation change of Bcl-2 is involved in arsenic trioxide-induced apoptosis and inhibition of proliferation in SGC7901 human gastric cancer cells.World journal of surgical oncology · 2010Article
- Apoptosis of human gastric adenocarcinoma cells induced by beta-ionone.World journal of gastroenterology · 2004Article
- Inhibition of beta-ionone on SGC-7901 cell proliferation and upregulation of metalloproteinases-1 and -2 expression.World journal of gastroenterology · 2004Article
- Protective role of metallothionein (I/II) against pathological damage and apoptosis induced by dimethylarsinic acid.World journal of gastroenterology · 2004Article
- HLA-DRB1 allele polymorphisms in genetic susceptibility to esophageal carcinoma.World journal of gastroenterology · 2003Article
- Preoperative TN staging of esophageal cancer: comparison of miniprobe ultrasonography, spiral CT and MRI.World journal of gastroenterology · 2003Article
- Effect of apoptosis on gastric adenocarcinoma cell line SGC-7901 induced by cis-9, trans-11-conjugated linoleic acid.World journal of gastroenterology · 2002Article
- Subcellular daunorubicin distribution and its relation to multidrug resistance phenotype in drug-resistant cell line SMMC-7721/R.World journal of gastroenterology · 2002Article
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Authors and funding
6 authors.
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Abstract
aimTo explore the correlation of the inherent cellular ROS level with the susceptibility of the digestive tract tumor cells to apoptosis inducted by As2O3.
methodsTwo gastric carcinoma cell lines, SGC7901 and MKN45, and two esophageal carcinoma cell lines, EC/CUHK1(alternatively named EC1.71) and EC1867 with low concentration(2 micromol x L(-1))of As2O3 were cultured espectly, which confirmed the difference in apoptosis susceptibility between SGC7901 and MKN45, and between EC/CUHK1 and EC1867. The cells were incubated with dihydrogenrhodamine123 (DHR123), used as a ROS capture in absence of As2O3. The fluorescent intensity of rhodamine123, which was the product of cellular oxidation of DHR123, was detected by flow cytometry, and ROS was measured.
resultsApoptosis induced by a low concentration of As2O3 was more readily to occur in SGC7901(22.4%+/-2.4%) and EC/CUHK1(27.0%+/-2.9%) than in MKN45(2.1%+/-0.5%) and EC1867(0.8%+/-0.5%). In other words, SGC7901 was more sensitive than MKN45 to As2O3, meanwhile EC/CUHK1 was more sensitive than EC1867 to As2O3. The level of inherent cellular ROS in SGC7901(650+/-37) was higher than that in MKN45(507+/-22)(P<0.01), and the level of inherent cellular ROS in EC/CUHK1(462+/-17) was higher than that in EC1867(187+/-12)(P<0.01).
conclusionsThe cellular sensitivity to apoptosis induced by As2O3 is associated with the difference in cellular ROS level. The inherent ROS level might determinate the apoptotic sensitivity of tumor cells to As2O3.
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