Heat Shock Protein 70 Inhibitors. 1. 2,5′-Thiodipyrimidine and 5-(Phenylthio)pyrimidine Acrylamides as Irreversible Binders to an Allosteric Site on Heat Shock Protein 70
摘要:
Heat shock protein 70 (Hsp70) is an important emerging. cancer. target whose inhibition may affect multiple cancer-associated signaling pathways and, moreover, result in significant cancer cell apoptosis. Despite considerable interest from both academia and pharmaceutical companies in the discovery and development of druglike Hsp70 inhibitors, little success has been reported so far. Here we describe structure activity relationship studies in the first rationally designed Hsp70 inhibitor class that binds to a novel allosteric pocket located in the N-terminal domain of the protein. These 2,5'-thiodipyrimidine and 5-(phenylthio)-pyrimidine acrylamides take advantage of an active cysteine embedded in the allosteric pocket to act as covalent protein modifiers upon binding. The study identifies derivatives 17a and 20a, which selectively bind to Hsp70 in cancer cells. Addition of high nanomolar to low micromolar concentrations of these inhibitors to cancer cells leads to a reduction in the steady-state levels of Hsp70-sheltered oncoproteins, an effect associated with inhibition of cancer cell growth and apoptosis. In summary, the described scaffolds represent a viable starting point for the development of druglike Hsp70 inhibitors as novel anticancer therapeutics.
Heat Shock Protein 70 Inhibitors. 1. 2,5′-Thiodipyrimidine and 5-(Phenylthio)pyrimidine Acrylamides as Irreversible Binders to an Allosteric Site on Heat Shock Protein 70
摘要:
Heat shock protein 70 (Hsp70) is an important emerging. cancer. target whose inhibition may affect multiple cancer-associated signaling pathways and, moreover, result in significant cancer cell apoptosis. Despite considerable interest from both academia and pharmaceutical companies in the discovery and development of druglike Hsp70 inhibitors, little success has been reported so far. Here we describe structure activity relationship studies in the first rationally designed Hsp70 inhibitor class that binds to a novel allosteric pocket located in the N-terminal domain of the protein. These 2,5'-thiodipyrimidine and 5-(phenylthio)-pyrimidine acrylamides take advantage of an active cysteine embedded in the allosteric pocket to act as covalent protein modifiers upon binding. The study identifies derivatives 17a and 20a, which selectively bind to Hsp70 in cancer cells. Addition of high nanomolar to low micromolar concentrations of these inhibitors to cancer cells leads to a reduction in the steady-state levels of Hsp70-sheltered oncoproteins, an effect associated with inhibition of cancer cell growth and apoptosis. In summary, the described scaffolds represent a viable starting point for the development of druglike Hsp70 inhibitors as novel anticancer therapeutics.
biological targets for the specific visualization of such pathologies, in particular by using radiolabeled MMP inhibitors (MMPIs). The aim of this work was to develop a radiofluorinatedmolecularprobe for noninvasive in vivo imaging for the detection of up‐regulated levels of activated MMPs in the living organism. Fluorinated MMPIs (26, 31 and 38) based on the pyrimidine‐2,4,6‐trione lead structure
HEAT SHOCK PROTEIN BINDING COMPOUNDS, COMPOSITIONS, AND METHODS FOR MAKING AND USING SAME
申请人:Chiosis Gabriela
公开号:US20120252818A1
公开(公告)日:2012-10-04
The present subject matter relates to a compound represented by the general formula (I) or (I′) or a pharmacologically acceptable salt thereof; pharmaceutical compositions containing at least one of these compounds; methods of making at least one of these compounds; methods of using at least one of these compounds for treating and/or preventing various cancers and/or proliferation disorders; methods of using at least one of these compounds for monitoring the effectiveness of an anticancer therapy against various cancers. In one embodiment, the subject matter relates to compounds that bind with a level of specificity to heat shock protein 70 (Hsp70). In another embodiment, the subject matter relates to compounds that bind with a level of specificity to inhibit both heat shock protein 70 (Hsp70) and heat shock cognate protein 70 (Hsc70).
Polymethoxybenzyl piperazine derivatives, processes for their preparation and pharmaceutical compositions containing said derivatives
申请人:WAKO PURE CHEMICAL INDUSTRIES, LTD.
公开号:EP0144991A2
公开(公告)日:1985-06-19
A compound of the formula:
(R = H, CH30; n = 2 to 5) is effective for improving blood circulation system.
式中:(R = H,CH30;n = 2 至 5)的化合物可有效改善血液循环系统。
Heat shock protein binding compounds, compositions, and methods for making and using same
申请人:Memorial Sloan-Kettering Cancer Center
公开号:US10052325B2
公开(公告)日:2018-08-21
The present subject matter relates to a compound represented by the general formula (I) or (I′) or a pharmacologically acceptable salt thereof; pharmaceutical compositions containing at least one of these compounds; methods of making at least one of these compounds; methods of using at least one of these compounds for treating and/or preventing various cancers and/or proliferation disorders; methods of using at least one of these compounds for monitoring the effectiveness of an anticancer therapy against various cancers. In one embodiment, the subject matter relates to compounds that bind with a level of specificity to heat shock protein 70 (Hsp70). In another embodiment, the subject matter relates to compounds that bind with a level of specificity to inhibit both heat shock protein 70 (Hsp70) and heat shock cognate protein 70 (Hsc70).
[EN] HEAT SHOCK PROTEIN BINDING COMPOUNDS, COMPOSITIONS, AND METHODS FOR MAKING AND USING SAME<br/>[FR] COMPOSÉS DE LIAISON À UNE PROTÉINE DE CHOC THERMIQUE, COMPOSITIONS ET PROCÉDÉS POUR LES FABRIQUER ET LES UTILISER