Caspase-independent apoptosis induced by arsenic trioxide in human multiple myeloma cell RPMI8226 / 中国实验血液学杂志
Journal of Experimental Hematology
;
(6): 107-111, 2012.
Article
in Chinese
| WPRIM
| ID: wpr-331010
ABSTRACT
This study was purposed to explore the caspase-independent apoptosis pathway in human multiple myeloma cell RPMI8226 induced by arsenic trioxide (As(2)O(3)). MTT method was used to analyze the proliferation inhibition rate; flow cytometry was used to detect the apoptosis rate; Western blot was used to determine the expressions of BCL-2 and Caspase-3 in RPMI8226 cells. The results showed that As(2)O(3) (0.1 - 20 µmol/L) significantly inhibited the proliferation of RPMI8226 (P < 0.05) in concentration- and time-dependent manner. Compared with the group treated with As(2)O(3) (10 µmol/L) alone, the apoptosis rate of zVAD-fmk (20 µmol/L) and As(2)O(3) combined treated group did not change. Compared with the group treated with As(2)O(3) (10 µmol/L) alone, zVAD-fmk (20 µmol/L) combined with As(2)O(3) (10 µmol/L) treatment group showed significant increase of expressions of Caspase-3 and BCL-2. It is concluded that As(2)O(3) can inhibit the proliferation of RPMI8226 cells. As(2)O(3) can induce apoptosis of RPMI8226 cells, and a caspase-independent process probably exist in As2O3-inducing RPMI8266 cells apoptosis.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Oxides
/
Pathology
/
Pharmacology
/
Arsenicals
/
Apoptosis
/
Proto-Oncogene Proteins c-bcl-2
/
Cell Line, Tumor
/
Caspase 3
/
Metabolism
/
Multiple Myeloma
Limits:
Humans
Language:
Chinese
Journal:
Journal of Experimental Hematology
Year:
2012
Type:
Article
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