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- W2384361978 abstract "Objective To investigate the effects of the folic acid on human T lymphoid leukemia cell line CEM cells. Methods 1. MTT method was used to detect the proliferation of CEM cells co- cultured with folic acid of different concentrations and time;2. E-xamine the changes of morphology by light microscopy with Giemsa stain;3. Detect the percentage of apoptosis and cell cycle distribution as well as the expression of the apoptosis protein(Bcl- 2,C- myc) by flow cytometry;4. Detect DNA fragments by Agaiose elec-trophoresis;5. Detect the influence of folic acid to the anticancer effects of methotrexatc(MTX) by MTT methods. Results 1 Folic acid could inhibit the proliferation of CEM cells, and the optimal inhibitive concentrations range from 0. 4 × 10-4 μg/L to 3. 0 × 10 -4 μg/L,the inhibition rate was about 30% - 40% ; 2. Co - cultured with folic acid at 24,48, 72 hours, examined by light microscopy with Giemsa stain, apoptosis cells were found in all study groups but the higher apoptosis rate was found co - cultured with folic acid at concentration of (0.4 - 3.0) × 10-4μg/L;3.The highest apoptosis rate was 6. 19% found at the concentration of 3 × 10-4 μg/L, but the cell cycle distribution had no statistical difference with control group, the expression of apoptosis related protein Bcl - 2 and C-myc was decreased;4 DNA was extracted from CEM cells co - cultured with 0.4× 10 -4 μg/L and 3 × 10-4 μg/L folic acid for 48 hours. UNA ladders were visible by agarose electrophoresis of DNA fragments; 5. Folic acid did not affect the antitumor effect of MTX at the concentration from 0 2× 10-4 μg/L to 12.0×10-4 μg/L. Conclusion Folic acid may suppress proliferation and induce apoptosis of CEM cell" @default.
- W2384361978 created "2016-06-24" @default.
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- W2384361978 date "2005-01-01" @default.
- W2384361978 modified "2023-09-25" @default.
- W2384361978 title "Effects of Folic Acid on Human T Lymphoid Leukemia Cell Line CEM Cells" @default.
- W2384361978 hasPublicationYear "2005" @default.
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