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Pyrrolizidine alkaloid clivorine induces apoptosis in human normal liver L-02 cells and reduces the expression of p53 protein
- Source :
-
Toxicology in Vitro . Feb2005, Vol. 19 Issue 1, p41-46. 6p. - Publication Year :
- 2005
-
Abstract
- Abstract: Clivorine, a pyrrolizidine alkaloid, is a potent toxic compound extracted from a Chinese medicinal plant Ligularia hodgsonii Hook. We have previously shown that clivorine inhibited human normal liver L-02 cells proliferation and induced p38 mitogen-activated protein kinase phosphorylation. The aim of this study is to further observe the mechanism of clivorine-inhibited L-02 cells growth. In this paper we show here that clivorine can induce apoptosis in L-02 cells, reduce the expression of p53 protein but has no effect on the expression of Bcl-2 protein, and clivorine also induces the cleavage of the poly(ADP-ribose) polymerase in L-02 cells. Our results suggest that the anti-proliferative function of clivorine in L-02 cells may be due to its inducing cell apoptosis, and clivorine-induced cell apoptosis is independent of p53 protein. [Copyright &y& Elsevier]
- Subjects :
- *PYRROLIZIDINES
*ALKALOIDS
*LIVER
*MITOGENS
*APOPTOSIS
Subjects
Details
- Language :
- English
- ISSN :
- 08872333
- Volume :
- 19
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Toxicology in Vitro
- Publication Type :
- Academic Journal
- Accession number :
- 15560000
- Full Text :
- https://doi.org/10.1016/j.tiv.2004.06.003