Myeloid cell leukemin-1 inhibitors: a growing arsenal for cancer therapy.
2020
B-cell lymphoma-2 (Bcl-2) family proteins, comprising proapoptotic proteins (Bax and Bak), antiapoptotic proteins (Bcl-2, Bcl-XL, Bcl-w, Mcl-1, and A1) and BCL-2 homology domain 3 (BH3)-only proteins (Bid, Noxa, and Puma), have long been identified as pivotal apoptosis regulators. As an antiapoptotic member, myeloid cell leukemin-1 (Mcl-1) can bind with proapoptotic proteins and inhibit apoptosis. Mcl-1 is frequently overexpressed and closely associated with oncogenesis and poor prognosis in several cancers, posing a tremendous obstacle for cancer therapy. Recently, an increasing number of Mcl-1-selective small-molecule inhibitors have entered preclinical studies and advanced into clinical trials. In this review, we briefly introduce the role of Mcl-1 in apoptosis and highlight the recent development of Mcl-1 small-molecule inhibitors.
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