Abstract:
:Survivin is a member of the inhibitor of apoptosis protein family and has an essential role in mitosis. Survivin is overexpressed in a large variety of human cancers and represents an attractive target for cancer therapy. Epidermal growth factor receptor and Her/neu-transformed human tumors in particular exhibit high levels of survivin. The survivin protein forms dimers through a conserved region that is critical for subcellular localization and biological functions of the protein. We identified small molecules that target a specific cavity adjacent to the survivin dimerization surfaces. S12, a lead compound identified in the screen, can bind to the survivin protein at the intended target site. Moreover, S12 alters spindle formation, causing mitotic arrest and cell death, and inhibits tumor growth in vitro and in vivo. Cell death occurs in premetaphase stage following mitotic arrest and is not a consequence of general toxicity. Thus, the study validates a novel therapeutic target site in the survivin protein and provides a promising strategy to develop a new class of therapeutic small molecules for the treatment of human cancers.
journal_name
Oncogenejournal_title
Oncogeneauthors
Berezov A,Cai Z,Freudenberg JA,Zhang H,Cheng X,Thompson T,Murali R,Greene MI,Wang Qdoi
10.1038/onc.2011.377subject
Has Abstractpub_date
2012-04-12 00:00:00pages
1938-48issue
15eissn
0950-9232issn
1476-5594pii
onc2011377journal_volume
31pub_type
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