Design of Leucine-Rich Repeat Kinase 2 (LRRK2) Inhibitors Using a Crystallographic Surrogate Derived from Checkpoint Kinase 1 (CHK1)

被引:36
作者
Williamson, Douglas S. [1 ]
Smith, Garrick P. [2 ]
Acheson-Dossan, Pamela [1 ]
Bedford, Simon T. [1 ]
Chell, Victoria [1 ]
Chen, I-Jen [1 ]
Daechsel, Justus C. A. [2 ]
Daniels, Zoe [1 ]
David, Laurent [2 ]
Dokurno, Pawel [1 ]
Hentzer, Morten [2 ]
Herzig, Martin C. [2 ]
Hubbard, Roderick E. [1 ]
Moore, Jonathan D. [1 ]
Murray, James B. [1 ]
Newland, Samantha [1 ]
Ray, Stuart C. [1 ]
Shaw, Terry [1 ]
Surgenor, Allan E. [1 ]
Terry, Lindsey [1 ]
Thirstrup, Kenneth [1 ]
Wang, Yikang [1 ]
Christensen, Kenneth V. [2 ]
机构
[1] Vernalis R&D Ltd, Granta Pk, Cambridge CB21 6GB, England
[2] H Lundbeck & Co AS, Ottiliavej 9, DK-2500 Valby, Denmark
关键词
PARKINSONS-DISEASE; BRAIN-PENETRANT; HIGHLY POTENT; DISCOVERY; IDENTIFICATION; FEATURES; MUTATIONS; THERAPIES; ENSEMBLE; INSIGHTS;
D O I
10.1021/acs.jmedchem.7b01186
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
Mutations in leucine-rich repeat kinase 2 (LRRK2), such as G2019S, are associated with an increased risk of developing Parkinson's disease. Surrogates for the LRRK2 kinase domain based on checkpoint kinase 1 (CHK1) mutants were designed, expressed in insect cells infected with baculovirus, purified, and crystallized. X-ray structures of the surrogates complexed;with known LRRK2 inhibitors rationalized compound potency and selectivity. The CHK1 10-point mutant was preferred, following assessment of surrogate binding affinity with LRRK2 inhibitors. Fragment hit-derived arylpyrrolo[2,3-b]pyridine LRRK2 inhibitors underwent structure-guided optimization using this crystallographic surrogate. LRRK2-pSer935 HEK293 IC50 data for 22 were consistent with binding to A1a2016 in LRRK2 (equivalent to A1a147 in CHK1 10-point mutant structure). Compound 22 was shown to be potent, moderately selective, orally available, and brain-penetrant in wild-type mice, and confirmation of target engagement was demonstrated, with LRRK2-pSer935 IC50 values for 22 in mouse brain and kidney being 1.3 and 5 nM, respectively.
引用
收藏
页码:8945 / 8962
页数:18
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