Brain-restricted mTOR inhibition with binary pharmacology.
Brain-restricted mTOR inhibition with binary pharmacology.
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DOI:
10.1038/s41586-022-05213-y
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发表时间:
2022-09
期刊:
影响因子:
64.8
通讯作者:
Shokat, Kevan M.
中科院分区:
文献类型:
--
作者:
Zhang, Ziyang;Fan, Qiwen;Luo, Xujun;Lou, Kevin;Weiss, William A.;Shokat, Kevan M.
On-target–off-tissue drug engagement is an important source of adverse effects that constrains the therapeutic window of drug candidates. In diseases of the central nervous system, drugs with brain-restricted pharmacology are highly desirable. Here we report a strategy to achieve inhibition of mammalian target of rapamycin (mTOR) while sparing mTOR activity elsewhere through the use of the brain-permeable mTOR inhibitor RapaLink-1 and the brain-impermeable FKBP12 ligand RapaBlock. We show that this drug combination mitigates the systemic effects of mTOR inhibitors but retains the efficacy of RapaLink-1 in glioblastoma xenografts. We further present a general method to design cell-permeable, FKBP12-dependent kinase inhibitors from known drug scaffolds. These inhibitors are sensitive to deactivation by RapaBlock, enabling the brain-restricted inhibition of their respective kinase targets. The combination of the brain-permeable mTOR inhibitor RapaLink-1 and the brain-impermeable FKBP12 ligand RapaBlock enable brain-specific inhibition of mTOR.
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通讯作者:
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