The Eyes Absent (EYA) family of developmental proteins, often in partnership with the sine oculis (SIX) homeobox proteins, promote cancer metastasis and recurrence in numerous tumor types. In addition to being a transcriptional coactivator, EYA2 is a Tyr phosphatase that dephosphorylates H2AX which leads to repair instead of apoptosis upon DNA damage and ERβ which inhibits the anti‐tumor transcriptional activity of ERβ. The SIX members of the EYA‐SIX complex are difficult to target, therefore, we targeted the EYA2 to promote cell death and prevent cancer progression. We conducted structural optimization of a previously discovered allosteric inhibitor of EYA2, 9987, using the combination of in silico modeling, biochemical and cell‐based assays. A new series of compounds was developed with significantly improved cellular activity and physiochemical properties desirable for brain targets. Specifically, compound 2e showed >30 fold improvement in the medulloblastoma cell line D458, relative to 9987, while maintaining potent and selective inhibitory activity against EYA2 Tyr phosphatase activity and a good multiparameter optimization score for central nervous system drugs.
KADA R.; KOVAC J., CHEM. ZVESTI <CHZV-AN>, 1975, 29, NO 3, 402-407
作者:KADA R.、 KOVAC J.
DOI:——
日期:——
KADA R.; KNOPPOVA V.; KOVAC J., COLLECT. CZECH. CHEM. COMMUNS <CCCC-AK>, 1977, 42, NO 11, 3333-3338
作者:KADA R.、 KNOPPOVA V.、 KOVAC J.
DOI:——
日期:——
Structural and Functional Analyses of an Allosteric EYA2 Phosphatase Inhibitor That Has On-Target Effects in Human Lung Cancer Cells
作者:Jothi Anantharajan、Hengbo Zhou、Lingdi Zhang、Taylor Hotz、Melanie Y. Vincent、Melanie A. Blevins、Anna E. Jansson、John Wee Liang Kuan、Elizabeth Yihui Ng、Yee Khoon Yeo、Nithya Baburajendran、Grace Lin、Alvin W. Hung、Joma Joy、Samarjit Patnaik、Juan Marugan、Pratyaydipta Rudra、Debashis Ghosh、Jeffrey Hill、Thomas H. Keller、Rui Zhao、Heide L. Ford、CongBao Kang
DOI:10.1158/1535-7163.mct-18-1239
日期:2019.9.1
(ED) harboring Tyr phosphatase activity. EYA proteins are largely downregulated after embryogenesis but are reexpressed in cancers, and their Tyr phosphatase activity plays an important role in the DNA damage response and tumor progression. We previously identified a class of small-molecule allosteric inhibitors that specifically inhibit the Tyr phosphatase activity of EYA2. Herein, we determined the