Inhibition of the Human Hsc70 System by Small Ligands as a Potential Anticancer Approach
| Autor: | Aurora Martinez, Fernando Moro, María Dolores Boyano, Lorea Velasco-Carneros, Jean-Didier Maréchal, Arturo Muga, Leire Dublang, Jarl Underhaug, Marte I. Flydal |
|---|---|
| Přispěvatelé: | Ministerio de Economía y Competitividad (España), Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), European Commission, Eusko Jaurlaritza, Research Council of Norway, Western Norway Regional Health Authority |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0301 basic medicine
Cancer Research Drug repurposing Article 03 medical and health sciences 0302 clinical medicine Heat shock protein inhibitors Chaperones melanoma chaperones Pinaverium bromide Melanoma RC254-282 drug repurposing Chemistry Inhibitors Neoplasms. Tumors. Oncology. Including cancer and carcinogens Drug repositioning 030104 developmental biology Oncology Apoptosis Docking (molecular) Tumor progression 030220 oncology & carcinogenesis Cancer cell Pinaverium Bromide Cancer research pinaverium bromide Intracellular |
| Zdroj: | Addi. Archivo Digital para la Docencia y la Investigación instname Cancers Volume 13 Issue 12 Cancers, Vol 13, Iss 2936, p 2936 (2021) Addi: Archivo Digital para la Docencia y la Investigación Universidad del País Vasco |
| ISSN: | 2016-7598 |
| Popis: | Heat shock protein (Hsp) synthesis is upregulated in a wide range of cancers to provide the appropriate environment for tumor progression. The Hsp110 and Hsp70 families have been associated to cancer cell survival and resistance to chemotherapy. In this study, we explore the strategy of drug repurposing to find new Hsp70 and Hsp110 inhibitors that display toxicity against melanoma cancer cells. We found that the hits discovered using Apg2, a human representative of the Hsp110 family, as the initial target bind also to structural regions present in members of the Hsp70 family, and therefore inhibit the remodeling activity of the Hsp70 system. One of these compounds, the spasmolytic agent pinaverium bromide used for functional gastrointestinal disorders, inhibits the intracellular chaperone activity of the Hsp70 system and elicits its cytotoxic activity specifically in two melanoma cell lines by activating apoptosis. Docking and molecular dynamics simulations indicate that this compound interacts with regions located in the nucleotide-binding domain and the linker of the chaperones, modulating their ATPase activity. Thus, repurposing of pinaverium bromide for cancer treatment appears as a promising novel therapeutic approach. This study was funded by grants BFU2016-75983-P and PID2019-111068GB-100 (AEI/FEDER/UE) from MINECO to F.M. and A.M. (Arturo Muga) and IT1201-19 from the Basque Government to F.M. Support from the Research Council of Norway (RCN, Grant FRIMEDBIO 261826/F20), the Western Norway Regional Health Authority (912246 to A.M. (Aurora Martinez) and M.I.F.) |
| Databáze: | OpenAIRE |
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