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Discovery of Novel Indoleamine 2,3-Dioxygenase 1 (IDO1) and Histone Deacetylase (HDAC) Dual Inhibitors.


ABSTRACT: In order to take advantage of both immunotherapeutic and epigenetic antitumor agents, the first generation of dual indoleamine 2,3-dioxygenase 1 (IDO1) and histone deacetylase (HDAC) inhibitors were designed. The highly active dual inhibitor 10 showed excellent and balanced activity against both IDO1 (IC50 = 69.0 nM) and HDAC1 (IC50 = 66.5 nM), whose dual targeting mechanisms were validated in cancer cells. Compound 10 had good pharmacokinetic profiles as an orally active antitumor agent and significantly reduced the l-kynurenine level in plasma. In particular, it showed excellent in vivo antitumor efficacy in the murine LLC tumor model with low toxicity. This proof-of-concept study provided a novel strategy for cancer treatment. Compound 10 represents a promising lead compound for the development of novel antitumor agents and can also be used as a valuable probe to clarify the relationships and mechanisms between cancer immunotherapy and epigenetics.

SUBMITTER: Fang K 

PROVIDER: S-EPMC5900342 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature

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Discovery of Novel Indoleamine 2,3-Dioxygenase 1 (IDO1) and Histone Deacetylase (HDAC) Dual Inhibitors.

Fang Kun K   Dong Guoqiang G   Li Yu Y   He Shipeng S   Wu Ying Y   Wu Shanchao S   Wang Wei W   Sheng Chunquan C  

ACS medicinal chemistry letters 20180326 4


In order to take advantage of both immunotherapeutic and epigenetic antitumor agents, the first generation of dual indoleamine 2,3-dioxygenase 1 (IDO1) and histone deacetylase (HDAC) inhibitors were designed. The highly active dual inhibitor <b>10</b> showed excellent and balanced activity against both IDO1 (IC<sub>50</sub> = 69.0 nM) and HDAC1 (IC<sub>50</sub> = 66.5 nM), whose dual targeting mechanisms were validated in cancer cells. Compound <b>10</b> had good pharmacokinetic profiles as an o  ...[more]

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