A repurposing strategy for Hsp90 inhibitors demonstrates their potency against filarial nematodes.
Novel drugs are required for the elimination of infections caused by filarial worms, as most commonly used drugs largely target the microfilariae or first stage larvae of these infections. Previous studies, conducted in vitro, have shown that inhibition of Hsp90 kills adult Brugia pahangi. As numero...
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| Language: | English |
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Public Library of Science (PLoS)
2014-02-01
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| Series: | PLoS Neglected Tropical Diseases |
| Online Access: | https://journals.plos.org/plosntds/article/file?id=10.1371/journal.pntd.0002699&type=printable |
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| _version_ | 1841527062487105536 |
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| author | Victoria Gillan Kerry O'Neill Kirsty Maitland Francis M Sverdrup Eileen Devaney |
| author_facet | Victoria Gillan Kerry O'Neill Kirsty Maitland Francis M Sverdrup Eileen Devaney |
| author_sort | Victoria Gillan |
| collection | DOAJ |
| description | Novel drugs are required for the elimination of infections caused by filarial worms, as most commonly used drugs largely target the microfilariae or first stage larvae of these infections. Previous studies, conducted in vitro, have shown that inhibition of Hsp90 kills adult Brugia pahangi. As numerous small molecule inhibitors of Hsp90 have been developed for use in cancer chemotherapy, we tested the activity of several novel Hsp90 inhibitors in a fluorescence polarization assay and against microfilariae and adult worms of Brugia in vitro. The results from all three assays correlated reasonably well and one particular compound, NVP-AUY922, was shown to be particularly active, inhibiting Mf output from female worms at concentrations as low as 5.0 nanomolar after 6 days exposure to drug. NVP-AUY922 was also active on adult worms after a short 24 h exposure to drug. Based on these in vitro data, NVP-AUY922 was tested in vivo in a mouse model and was shown to significantly reduce the recovery of both adult worms and microfilariae. These studies provide proof of principle that the repurposing of currently available Hsp90 inhibitors may have potential for the development of novel agents with macrofilaricidal properties. |
| format | Article |
| id | doaj-art-e771bc9ec7164acf8dadc169bd1a26df |
| institution | Kabale University |
| issn | 1935-2727 1935-2735 |
| language | English |
| publishDate | 2014-02-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS Neglected Tropical Diseases |
| spelling | doaj-art-e771bc9ec7164acf8dadc169bd1a26df2025-01-16T05:32:27ZengPublic Library of Science (PLoS)PLoS Neglected Tropical Diseases1935-27271935-27352014-02-0182e269910.1371/journal.pntd.0002699A repurposing strategy for Hsp90 inhibitors demonstrates their potency against filarial nematodes.Victoria GillanKerry O'NeillKirsty MaitlandFrancis M SverdrupEileen DevaneyNovel drugs are required for the elimination of infections caused by filarial worms, as most commonly used drugs largely target the microfilariae or first stage larvae of these infections. Previous studies, conducted in vitro, have shown that inhibition of Hsp90 kills adult Brugia pahangi. As numerous small molecule inhibitors of Hsp90 have been developed for use in cancer chemotherapy, we tested the activity of several novel Hsp90 inhibitors in a fluorescence polarization assay and against microfilariae and adult worms of Brugia in vitro. The results from all three assays correlated reasonably well and one particular compound, NVP-AUY922, was shown to be particularly active, inhibiting Mf output from female worms at concentrations as low as 5.0 nanomolar after 6 days exposure to drug. NVP-AUY922 was also active on adult worms after a short 24 h exposure to drug. Based on these in vitro data, NVP-AUY922 was tested in vivo in a mouse model and was shown to significantly reduce the recovery of both adult worms and microfilariae. These studies provide proof of principle that the repurposing of currently available Hsp90 inhibitors may have potential for the development of novel agents with macrofilaricidal properties.https://journals.plos.org/plosntds/article/file?id=10.1371/journal.pntd.0002699&type=printable |
| spellingShingle | Victoria Gillan Kerry O'Neill Kirsty Maitland Francis M Sverdrup Eileen Devaney A repurposing strategy for Hsp90 inhibitors demonstrates their potency against filarial nematodes. PLoS Neglected Tropical Diseases |
| title | A repurposing strategy for Hsp90 inhibitors demonstrates their potency against filarial nematodes. |
| title_full | A repurposing strategy for Hsp90 inhibitors demonstrates their potency against filarial nematodes. |
| title_fullStr | A repurposing strategy for Hsp90 inhibitors demonstrates their potency against filarial nematodes. |
| title_full_unstemmed | A repurposing strategy for Hsp90 inhibitors demonstrates their potency against filarial nematodes. |
| title_short | A repurposing strategy for Hsp90 inhibitors demonstrates their potency against filarial nematodes. |
| title_sort | repurposing strategy for hsp90 inhibitors demonstrates their potency against filarial nematodes |
| url | https://journals.plos.org/plosntds/article/file?id=10.1371/journal.pntd.0002699&type=printable |
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