RRC ID 44793
Author Tomiyasu H, Watanabe M, Sugita K, Goto-Koshino Y, Fujino Y, Ohno K, Sugano S, Tsujimoto H.
Title Regulations of ABCB1 and ABCG2 expression through MAPK pathways in acute lymphoblastic leukemia cell lines.
Journal Anticancer Res
Abstract BACKGROUND:One of the major causes of failure in chemotherapy for patients with acute lymphoblastic leukemia (ALL) is the acquisition of multidrug resistance (MDR). Predominant mechanisms for MDR acquisition include the overexpression of efflux pumps. In the present study, the regulation of the expression of two genes that encode efflux pumps, ATP-binding cassette, sub-family B, member 1 (ABCB1) and ABCG2, through mitogen-activated protein kinase (MAPK) pathways was examined.
MATERIALS AND METHODS:ABCB1 and ABCG2 mRNAs were quantified in a T-ALL cell line, CCRF-HSB-2 and a B-ALL cell line, YAMN90 using real-time RT-PCR. Changes in the mRNA amounts of these genes were examined after activation or inhibition of MAPK/extracellular signal-regulated kinase (ERK) pathway and c-Jun NH2-terminal kinase (JNK) pathway.
RESULTS:Activation of MAPK/ERK pathway up-regulated ABCB1 expression but down-regulated ABCG2 expression. Activation of JNK pathway up-regulated ABCG2 gene expression.
CONCLUSION:The expressions of ABCB1 and ABCG2 genes were regulated through MAPK/ERK and JNK pathways in the human ALL cell lines.
Volume 33(12)
Pages 5317-23
Published 2013-12-1
PII 33/12/5317
PMID 24324065
MeSH ATP Binding Cassette Transporter, Subfamily B ATP Binding Cassette Transporter, Subfamily B, Member 1 / genetics* ATP Binding Cassette Transporter, Subfamily G, Member 2 ATP-Binding Cassette Transporters / genetics* Base Sequence Cell Line, Tumor DNA Primers Gene Expression Regulation, Neoplastic* Humans MAP Kinase Signaling System* Multidrug Resistance-Associated Proteins / genetics Neoplasm Proteins / genetics* Precursor Cell Lymphoblastic Leukemia-Lymphoma / genetics* Precursor Cell Lymphoblastic Leukemia-Lymphoma / pathology RNA, Messenger / genetics Real-Time Polymerase Chain Reaction Reverse Transcriptase Polymerase Chain Reaction Rhodamine 123 / metabolism Vault Ribonucleoprotein Particles / genetics
IF 1.994
Times Cited 25
WOS Category ONCOLOGY
Resource
Human and Animal Cells