Involvement of oxidative stress in embelin-induced cell death in leukemia HL-60 cells / 中华血液学杂志
Chinese Journal of Hematology
;
(12): 465-468, 2015.
Article
Dans Chinois
| WPRIM
| ID: wpr-282006
ABSTRACT
<p><b>OBJECTIVE</b>To evaluate the effects of Embelin on HL-60 cells by the impact of oxidative stress on DNA double-strain breaks (DSBs).</p><p><b>METHODS</b>HL-60 cells were treated with Embelin in different concentration (3, 10, 30, 100, and 300 μg/ml) for 24 h, and inhibitory effects was examined by CCK-8 assay. Reactive oxygen species (ROS) levels were evaluated by flow cytometry using DCFH-DA. Comet assay was used to detect the extent of DSBs.</p><p><b>RESULTS</b>Embelin inhibited proliferation of HL-60 cells in a dose-dependent manner. At the concentration of 10, 30, 100, and 300 μg/ml, the inhibition rate was (12.74 ± 2.27)%, (23.49 ± 1.96)%, (30.30±1.89)%, and (57.55 ± 3.59)% (P<0.05). Embelin also lead to high level of intracellular ROS and deterioration of DNA damage (P<0.05). When HL-60 cells were pretreated with ROS scavenger N-acetyl-l-cysteine (NAC) for 2 h and then treated with 300 μg/ml Embelin for 24 h, the intracellular ROS level declined and DSBs relieved (P<0.05). Meanwhile, embelin-induced cell viability significantly declined to (32.75 ± 2.70)% (P<0.05).</p><p><b>CONCLUSION</b>Embelin induced the death of HL-60 cells by increasing the generation of intracellular oxidation and the oxidative stress, which drived the damage of DNA double-strand.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Acétylcystéine
/
Altération de l'ADN
/
Survie cellulaire
/
Benzoquinones
/
Espèces réactives de l'oxygène
/
Apoptose
/
Stress oxydatif
/
Cellules HL-60
/
Test des comètes
/
Fluorescéines
Limites du sujet:
Humains
langue:
Chinois
Texte intégral:
Chinese Journal of Hematology
Année:
2015
Type:
Article
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