Indoleamine 2,3-Dioxygenase Is the Anticancer Target for a Novel Series of Potent Naphthoquinone-Based Inhibitors
摘要:
Indoleamine 2,3-dioxygenase (IDO) is emerging as an important new therapeutic target for the treatment of cancer, chronic viral infections, and other diseases characterized by pathological immune suppression. While small molecule inhibitors of IDO exist, there remains a dearth of high-potency compounds offering in vivo efficacy and clinical translational potential. In this study, we address this gap by defining a new class of naphthoquinone-based IDO inhibitors exemplified by the natural product menadione, which is shown in mouse tumor models to have similar antitumor activity to previously characterized IDO inhibitors. Genetic validation that IDO is the critical in vivo target is demonstrated using IDO-null mice. Elaboration of menadione to a pyranonaphthoquinone has yielded low nanomolar potency inhibitors, including new compounds which are the most potent reported to date (K-i = 61-70 nM). Synthetic accessibility of this class will facilitate preclinical chemical-genetic studies as well as further optimization of pharmacological parameters for clinical translation.
Novel indoleamine 2,3-dioxygenase (IDO) inhibitors, compositions comprising the same, and methods of use thereof are disclosed.
US8389568B2
申请人:——
公开号:US8389568B2
公开(公告)日:2013-03-05
[EN] NOVEL IDO INHIBITORS AND METHODS OF USE THEREOF<br/>[FR] NOUVEAUX INHIBITEURS IDO ET LEURS PROCÉDÉS D'UTILISATION
申请人:LANKENAU INST MEDICAL RES
公开号:WO2008115804A1
公开(公告)日:2008-09-25
[EN] Novel indolearaine 2, 3-dioxygenase (IDO) inhibitors, compositions comprising the same, and methods of use thereof are disclosed. [FR] L'invention concerne de nouveaux inhibiteurs de 2,3-dioxygénase d'indoléaraine (IDO), des compositions les contenant et leurs procédés d'utilisation.
Indoleamine 2,3-Dioxygenase Is the Anticancer Target for a Novel Series of Potent Naphthoquinone-Based Inhibitors
作者:Sanjeev Kumar、William P. Malachowski、James B. DuHadaway、Judith M. LaLonde、Patrick J. Carroll、Daniel Jaller、Richard Metz、George C. Prendergast、Alexander J. Muller
DOI:10.1021/jm7014155
日期:2008.3.1
Indoleamine 2,3-dioxygenase (IDO) is emerging as an important new therapeutic target for the treatment of cancer, chronic viral infections, and other diseases characterized by pathological immune suppression. While small molecule inhibitors of IDO exist, there remains a dearth of high-potency compounds offering in vivo efficacy and clinical translational potential. In this study, we address this gap by defining a new class of naphthoquinone-based IDO inhibitors exemplified by the natural product menadione, which is shown in mouse tumor models to have similar antitumor activity to previously characterized IDO inhibitors. Genetic validation that IDO is the critical in vivo target is demonstrated using IDO-null mice. Elaboration of menadione to a pyranonaphthoquinone has yielded low nanomolar potency inhibitors, including new compounds which are the most potent reported to date (K-i = 61-70 nM). Synthetic accessibility of this class will facilitate preclinical chemical-genetic studies as well as further optimization of pharmacological parameters for clinical translation.