Compounds, Compositions, and Methods for Cancer Therapy
申请人:The Broad Institute, Inc.
公开号:US20140024639A1
公开(公告)日:2014-01-23
Compounds including various oligomers of piperlongumine and/or piperlongumine analogues as well as certain piperlongumine analogues that exhibit improved toxicity to cancer cells are disclosed. Also provided are compositions that comprise the compounds, methods of making compositions comprising the compounds, methods of making the compounds, and the use of compounds in methods for treating cancer.
Through ABPP, piperlongumine was identified to induce cancer cell death by covalently binding and inhibiting GSTO1 and has a broad spectrum synergistic effect with other anti-cancer agents.
olefin with an exocyclic methylene at C2 render PL analogues 47–49 with increased senolytic activity. These α-methylene containing analogues are also more potent than PL in inducing ROS production in WI-38 SCs. Similar to PL, 47–49 reduce the protein levels of oxidation resistance 1 (OXR1), an important oxidative stress response protein that regulates the expression of a variety of antioxidant enzymes
Compositions and methods for selectively depleting senescent cells
申请人:BioVentures, LLC
公开号:US10758524B2
公开(公告)日:2020-09-01
The present disclosure provides compositions and methods for selectively killing senescent cells, wherein the composition comprises piperlongumine (PL) or derivative thereof. The selective killing of senescent cells may delay aging and/or treat age-related disorders.
Piperlongumine (piplartine) and analogues: Antiproliferative microtubule-destabilising agents
作者:Mary J. Meegan、Seema Nathwani、Brendan Twamley、Daniela M. Zisterer、Niamh M. O'Boyle
DOI:10.1016/j.ejmech.2016.09.048
日期:2017.1
Piperlongumine (piplartine, 1) is a small molecule alkaloid that is receiving intense interest due to its antiproliferative and anticancer activities. We investigated the effects of 1 on tubulin and microtubules. Using both an isolated tubulin assay, and a combination of sedimentation and western blotting, we demonstrated that 1 is a tubulin-destabilising agent. This result was confirmed by immunofluorescence and confocal microscopy, which showed that microtubules in MCF-7 breast cancer cells were depolymerized when treated with 1. We synthesised a number of analogues of 1 to explore structure-activity relationships. Compound 13 had the best cytotoxic profile of this series, showing potent effects in human breast carcinoma MCF-7 cells whilst being relatively non-toxic to non-tumorigenic MCF-10a cells. These compounds will be further developed as potential clinical candidates for the treatment of breast cancer. (C) 2016 Elsevier Masson SAS. All rights reserved.