Effects of sterigmatocystin, deoxynivalenol and aflatoxin G1 on apoptosis of human peripheral blood lymphocytes in vitro.
- Author:
Xu-Ming SUN
1
;
Xiang-Hong ZHANG
;
Hui-Yan WANG
;
Wen-Jun CAO
;
Xia YAN
;
Lian-Fu ZUO
;
Jun-Ling WANG
;
Feng-Rong WANG
Author Information
- Publication Type:Journal Article
- MeSH: Aflatoxins; pharmacology; Apoptosis; drug effects; Dose-Response Relationship, Drug; Electrophoresis, Agar Gel; Flow Cytometry; Food Contamination; Humans; Lymphocytes; cytology; Sterigmatocystin; pharmacology; Time Factors; Trichothecenes; pharmacology
- From: Biomedical and Environmental Sciences 2002;15(2):145-152
- CountryChina
- Language:English
-
Abstract:
OBJECTIVETo explore the effects of Sterigmatocystin (ST), Deoxynivalenol (DON) and Aflatoxin G1 (AFG1) on apoptosis of human peripheral blood lymphocytes (HPBLs) in vitro and thus to further elucidate the putative roles of these three mycotoxins on human immunosystem.
METHODSThe effects of ST, DON and AFG1 on apoptosis of HPBLs were studied with cell culture, flow cytometric (FCM) DNA analysis and DNA agarose gel electrophoresis.
RESULTSDNA agarose gel electrophoresis results showed the characteristic "ladder" pattern of apoptosis in HPBLs treated with ST, DON and AFG1. Flow cytometric DNA analysis revealed that typical subdiploid peaks of apoptosis in DNA histogram could be seen in all groups treated with the three mycotoxins. Significant time-effect and dose-effect relationships were found between the apoptosis rates and treatment time as well as concentrations of the three mycotoxins.
CONCLUSIONST, DON and AFG1 can induce apoptosis of HPBLs in vitro and may have some negative effects on human immunosystem.
