NCIt definition : An orally available small molecule targeting a subset of Janus-associated kinase (JAK)
with potential antineoplastic activity. JAK2 inhibitor BMS-911543 selectively inhibits
JAK2, thereby preventing the JAK/STAT (signal transducer and activator of transcription)
signaling cascade, including activation of STAT3. This may lead to an induction of
tumor cell apoptosis and a decrease in cellular proliferation. JAK2, often upregulated
or mutated in a variety of cancer cells, mediates STAT3 activation and plays a key
role in tumor cell proliferation and survival.;