title: [Effect of PIC-BE on the expression of MDR-1 and bcl-2 genes in a multidrug resistance cell variant K562/ADM].
abstract: The effect of PIC-BE on the expression of mdr-1, bcl-2 and bax genes and their protein products (P-gp, Bcl-2 and Bax) was observed respectively in a multidrug resistance (MDR) cell variant K562/ADM. The results showed that PIC-BE could significantly inhibit the expression of mdr-1 and bcl-2 genes at both mRNA and protein levels in K562/ADM cell line, and the effect was dose- and time-dependent within limited range. Under same condition, although PIC-BE could increase the expression of Bax slightly, there was no statistically significant difference. These results suggest that the reversal of the MDR of K562/ADM cell line by PIC-BE may result from its effect on the expression of mdr-1, bcl-2 genes and their protein products.
authors.affiliation: Key Laboratory of Cellular and Molecular Biology of Liaoning Province, Dalian Medical University, Dalian 116027.
authors.forename: B F
authors.initials: BF
authors.lastname: Lu
authors.forename: Z M
authors.initials: ZM
authors.lastname: Zhu
authors.forename: L M
authors.initials: LM
authors.lastname: Yu
authors.forename: C X
authors.initials: CX
authors.lastname: Bian
authors.forename: P M
authors.initials: PM
authors.lastname: Yang
mesh_terms: D020168:ATP Binding Cassette Transporter, Subfamily B, Member 1 / Q000096:biosynthesis; D000970:Antineoplastic Agents / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D004317:Doxorubicin / Q000494:pharmacology; D018432:Drug Resistance, Multiple / Q000235:genetics*; D019008:Drug Resistance, Neoplasm / Q000235:genetics*; D015870:Gene Expression / Q000187:drug effects; D019450:Genes, MDR; D019254:Genes, bcl-2; D006801:Humans; D020014:K562 Cells / Q000187:drug effects; D010936:Plant Extracts / Q000494:pharmacology*; D011518:Proto-Oncogene Proteins / Q000096:biosynthesis; D019253:Proto-Oncogene Proteins c-bcl-2 / Q000096:biosynthesis; D012717:Sesquiterpenes; D051028:bcl-2-Associated X Protein
chemical_list: D020168:ATP Binding Cassette Transporter, Subfamily B, Member 1; D000970:Antineoplastic Agents; C494826:BAX protein, human; D010936:Plant Extracts; D011518:Proto-Oncogene Proteins; D019253:Proto-Oncogene Proteins c-bcl-2; D012717:Sesquiterpenes; D051028:bcl-2-Associated X Protein; C445979:beta-elemene; D004317:Doxorubicin