Abstract | OBJECTIVE: METHODS: Human colon cancer cells of the line SW480 were cultured and then divided into 2 groups: experimental group and control group. NS398 of the concentrations of 12.5, 25, 50, 75, 100, and 125 micromol/L was added into the culture fluid of the experimental group. MTT assay was used to observe the proliferation of the cells, flow cytometry was used to test the cell cycle, RT-PCR analysis was performed to examine COX-2 mRNA expression, and Western blotting analysis was performed to detect the expression of Stat5, peroxisome proliferators-activated receptors (PPARs), cyclin D1 and Bcl-x(L). RESULTS: Expression of COX-2 mRNA was not detected in the SW480 colon cancer cells. 72 hours after the addition of NS398 75 micromol/L the proliferative level of the SW480 cells was decreased; the rate of the cells at the G(1) stage increased from 31.2% to 40.6%, and the rate of cells at the S stage decreased from 52.8% to 41.2%. The expression of Stat5, PPARdelta, cyclin D1 and Bcl-x(L) decreased along with the elongation of time of NS398 action. CONCLUSION:
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Authors | Xiang-tao Ma, Li-wei Yu, Shan Wang, Hui Zhang, Ru-yu Du, Zhi-rong Cui |
Journal | Zhonghua yi xue za zhi
(Zhonghua Yi Xue Za Zhi)
Vol. 85
Issue 36
Pg. 2566-9
(Sep 21 2005)
ISSN: 0376-2491 [Print] China |
PMID | 16321305
(Publication Type: English Abstract, Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Cyclooxygenase 2 Inhibitors
- Membrane Proteins
- Nitrobenzenes
- PPAR delta
- RNA, Messenger
- STAT5 Transcription Factor
- Sulfonamides
- N-(2-cyclohexyloxy-4-nitrophenyl)methanesulfonamide
- Cyclooxygenase 2
- PTGS2 protein, human
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Topics |
- Apoptosis
(drug effects)
- Cell Proliferation
(drug effects)
- Colonic Neoplasms
(pathology)
- Cyclooxygenase 2
(biosynthesis, genetics)
- Cyclooxygenase 2 Inhibitors
(pharmacology)
- Humans
- Membrane Proteins
(biosynthesis, genetics)
- Nitrobenzenes
(pharmacology)
- PPAR delta
(biosynthesis, genetics)
- RNA, Messenger
(biosynthesis, genetics)
- STAT5 Transcription Factor
(biosynthesis, genetics)
- Signal Transduction
- Sulfonamides
(pharmacology)
- Tumor Cells, Cultured
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