Abstract:
:Janus kinase 2 (JAK2) is a non-receptor tyrosine kinase that regulates the signal transducer and activator of transcription (STAT) signaling pathway. Deregulation of JAK2 signaling has previously been observed in hematologic malignancies, including erythroleukemia. In the present study, an aminopyridine derivative compound, KRC-180, exhibited direct inhibition of the JAK2 protein at the catalytic site, as demonstrated using in vitro kinase activity assays and docking analyses. In addition, KRC-180 reduced the phosphorylation of STAT3 and STAT5, downstream signaling molecules of JAK2. The growth of HEL92.1.7 erythroleukemia cells harboring a constitutively activated form of JAK2 was suppressed by KRC-180 treatment; KRC-180 induced apoptotic cell death and cell cycle arrest. The results of the present study indicate that KRC-180 is a JAK2 inhibitor with anti-leukemic properties.
journal_name
Oncol Lettjournal_title
Oncology lettersauthors
Yoon KB,Cho SY,An SJ,Park KR,Lee HJ,Yoon HS,Lee SM,Kim YC,Han SYdoi
10.3892/ol.2017.6353subject
Has Abstractpub_date
2017-08-01 00:00:00pages
1347-1354issue
2eissn
1792-1074issn
1792-1082pii
OL-0-0-6353journal_volume
14pub_type
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