NCIt definition : An orally bioavailable, highly selective small molecule inhibitor of the serine/threonine
protein kinase Aurora A kinase with potential antineoplastic activity. Auora kinase
inhibitor MLN8054 binds to and inhibits Aurora kinase A, resulting in disruption of
the assembly of the mitotic spindle apparatus, disruption of chromosome segregation,
and inhibition of cell proliferation. Aurora A localizes in mitosis to the spindle
poles and to spindle microtubules and is thought to regulate spindle assembly. Aberrant
expression of Aurora kinases occurs in a wide variety of cancers, including colon
and breast cancers.;