title: Induction of apoptosis increases expression of non-canonical WNT genes in myeloid leukemia cell lines.
abstract: With the aim of determining the differential expression of WNT and FZD genes, before and after induction of apoptosis in BCR-ABL positive cells, we treated the myeloid cell line K562 and control cell line HL60 with imatinib mesylate and etoposide, and analyzed relative mRNA expression levels of WNT, FZD and sFRP genes under normal and apoptotic conditions by real-time RT-PCR. We observed marked increase in mRNA levels of FZD4, FZD5, FZD7 and WNT5b, correlating with apoptotic activity and independent of the agent or cell line used. Our results suggest the involvement of non-canonical Wnt signaling in executing programmed cell death in myeloid cell lines.
authors.affiliation: Depatment of Medical Biology and Genetics, Dokuz Eylul University Faculty of Medicine, 35340 Izmir, Turkey.
authors.forename: Hakki Ogun
authors.initials: HO
authors.lastname: Sercan
authors.forename: Melek
authors.initials: M
authors.lastname: Pehlivan
authors.forename: Ozlenen
authors.initials: O
authors.lastname: Simsek
authors.forename: Halil
authors.initials: H
authors.lastname: Ates
authors.forename: Zeynep
authors.initials: Z
authors.lastname: Sercan
mesh_terms: D000970:Antineoplastic Agents / Q000494:pharmacology; D001549:Benzamides; D053148:Caspase 3 / Q000235:genetics / Q000378:metabolism; D045744:Cell Line, Tumor; D019938:Cyclin D1 / Q000235:genetics; D005047:Etoposide / Q000494:pharmacology; D015972:Gene Expression Regulation, Neoplastic / Q000187:drug effects*; D018922:HL-60 Cells; D006801:Humans; D000068877:Imatinib Mesylate; D020014:K562 Cells; D007951:Leukemia, Myeloid / Q000235:genetics* / Q000473:pathology; D015473:Leukemia, Promyelocytic, Acute / Q000235:genetics* / Q000473:pathology; D010879:Piperazines / Q000494:pharmacology; D011743:Pyrimidines / Q000494:pharmacology; D012333:RNA, Messenger / Q000235:genetics; D020133:Reverse Transcriptase Polymerase Chain Reaction; D051153:Wnt Proteins / Q000235:genetics*
chemical_list: D000970:Antineoplastic Agents; D001549:Benzamides; D010879:Piperazines; D011743:Pyrimidines; D012333:RNA, Messenger; D051153:Wnt Proteins; D019938:Cyclin D1; D005047:Etoposide; D000068877:Imatinib Mesylate; D053148:Caspase 3