[Possible mechanism underlying apoptotic induction effect of vitamin K2 on human MDS cell line MUTZ-1].
Zhongguo Shi Yan Xue Ye Xue Za Zhi
; 15(1): 91-4, 2007 Feb.
Article
in Zh
| MEDLINE
| ID: mdl-17490529
ABSTRACT
The study was aimed to investigate the possible mechanism of vitamin K(2) (VK(2)) on myelodysplastic syndrome (MDS) cell line MUTZ-1 in vitro. The flow cytometry was used to analyze apoptosis rate and the change of cell cycle. The expression of apoptosis-related genes bcl-2, survivin and bax were detected by reverse transcription-polymerase chain reaction (RT-PCR). The activity of caspase-3 was detected by chemiluminescence assay. The results indicated that the apoptosis peak on FCM and positive Annexin-V FITC on cell membrane showed that VK(2) induced apoptosis of MUTZ-1 cells in a dose-and-time-dependent manner, S and G(2) cell decrement, G(0)/G(1) cell arrest, VK(2) significantly down-regulated the expression of bcl-2 and survivin, but had no effect on the expression of bax, the activity of caspase-3 was significantly increased. It is concluded that VK(2) induces apoptosis of MUTZ-1 cells through activating caspase-3 pathways and the apoptosis-related genes bcl-2 and survivin may play important roles in the process of apoptosis induction.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Myelodysplastic Syndromes
/
Apoptosis
/
Proto-Oncogene Proteins c-bcl-2
/
Vitamin K 2
Limits:
Humans
Language:
Zh
Journal:
Zhongguo Shi Yan Xue Ye Xue Za Zhi
Journal subject:
HEMATOLOGIA
Year:
2007
Document type:
Article
Affiliation country:
China