57459-36-6Relevant articles and documents
Small Molecule Inhibition of MicroRNA miR-21 Rescues Chemosensitivity of Renal-Cell Carcinoma to Topotecan
Naro, Yuta,Ankenbruck, Nicholas,Thomas, Meryl,Tivon, Yaniv,Connelly, Colleen M.,Gardner, Laura,Deiters, Alexander
, p. 5900 - 5909 (2018/08/04)
Chemical probes of microRNA (miRNA) function are potential tools for understanding miRNA biology that also provide new approaches for discovering therapeutics for miRNA-associated diseases. MicroRNA-21 (miR-21) is an oncogenic miRNA that is overexpressed in most cancers and has been strongly associated with driving chemoresistance in cancers such as renal cell carcinoma (RCC). Using a cell-based luciferase reporter assay to screen small molecules, we identified a novel inhibitor of miR-21 function. Following structure-activity relationship studies, an optimized lead compound demonstrated cytotoxicity in several cancer cell lines. In a chemoresistant-RCC cell line, inhibition of miR-21 via small molecule treatment rescued the expression of tumor-suppressor proteins and sensitized cells to topotecan-induced apoptosis. This resulted in a >10-fold improvement in topotecan activity in cell viability and clonogenic assays. Overall, this work reports a novel small molecule inhibitor for perturbing miR-21 function and demonstrates an approach to enhancing the potency of chemotherapeutics specifically for cancers derived from oncomir addiction.
Synthesis of 5-hydroxymethyl-8-methyl-3-(3-aryl-[1,2,4]oxadiazol-5-yl)-2h- pyrano[2,3-c]pyridin-2-ones and their esters
Zhuravel, Irina O.,Kovalenko, Sergiy M.,Zaremba, Oleg V.,Detistov, Oleksandr S.,Kovalenko, Svitlana S.,Chernykh, Valentin P.
, p. 3778 - 3784 (2008/12/23)
New 5-hydroxymethyl-8-methyl-3-(3-aryl-[1,2,4]oxadiazol-5-yl)-2H-pyrano-[2, 3-c]pyridin-2-ones and their esters were synthesized. The structure of obtained compounds was determined through a complete 1H NMR analysis. Copyright Taylor & Francis Group, LLC.