ReferenceID 226

Apoptosis induction of U937 human leukemia cells by diallyl trisulfide induces through generation of reactive oxygen species

J Biomed Sci

BACKGROUND: Diallyl trisulfide (DATS) is one of the major constituents in garlic oil and has demonstrated various pharmacological activities, including antimicrobial, antihyperlipidemic, antithrombotic, and anticancer e

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Reference Id
226
Evidence Id
16816
Core Evidence Id
16816
Source Reference Id
416
Herb2 Reference Id
HBREF000729
Subject Paper Key
HBIN015205_22578287
Pubmed Id
22578287
Doi
10.1186/1423-0127-19-50
Paper Title
Apoptosis induction of U937 human leukemia cells by diallyl trisulfide induces through generation of reactive oxygen species
Paper Abstract
BACKGROUND: Diallyl trisulfide (DATS) is one of the major constituents in garlic oil and has demonstrated various pharmacological activities, including antimicrobial, antihyperlipidemic, antithrombotic, and anticancer effects. However, the mechanisms of antiproliferative activity in leukemia cells are not fully understood. In this study, the apoptotic effects of DATS were investigated in human leukemia cells. RESULTS: Results of this study indicated that treatment with DATS resulted in significantly inhibited leukemia cell growth in a concentration- and time-dependent manner by induction of apoptosis. In U937 cells, DATS-induced apoptosis was correlated with down-regulation of Bcl-2, XIAP, and cIAP-1 protein levels, cleavage of Bid proteins, activation of caspases, and collapse of mitochondrial membrane potential. The data further demonstrated that DATS increased intracellular reactive oxygen species (ROS) generation, which was attenuated by pretreatment with antioxidant N-acetyl-l-cysteine (NAC), a scavenger of ROS. In addition, administration of NAC resulted in significant inhibition of DATS-induced apoptosis by inhibiting activation of caspases. CONCLUSIONS: The present study reveals that the cytotoxicity caused by DATS is mediated by generation of ROS and subsequent activation of the ROS-dependent caspase pathway in U937 leukemia cells.
Journal
J Biomed Sci
Publish Year
2012
Experiment Subject
Experiment Type
Cell Experiment
Phenotype Related
Leukemia
Paper Title Cn
Paper Title En
Apoptosis induction of U937 human leukemia cells by diallyl trisulfide induces through generation of reactive oxygen species
Bilingual Status
semi_complete