Low-dose salinomycin induces anti-leukemic responses in AML and MLL
Development of anti-cancer drugs towards clinical application is costly and inefficient. Large screens of drugs, efficacious for non-cancer disease, are currently being used to identify candidates for repurposing based on their anti-cancer properties. Here, we show that low-dose salinomycin, a cocci...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
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Impact Journals
2016
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| Online Access: | https://eprints.nottingham.ac.uk/37804/ |
| _version_ | 1848795537951686656 |
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| author | Roulston, Gary D.R. Burt, Charlotte L. Kettyle, Laura M.J. Matchett, Kyle B. Keenan, Heather L. Mulgrew, Nuala M. Ramsey, Joanne M. Dougan, Caoifa McKiernan, John Grishagin, Ivan V. Mills, Ken I. Thompson, Alexander |
| author_facet | Roulston, Gary D.R. Burt, Charlotte L. Kettyle, Laura M.J. Matchett, Kyle B. Keenan, Heather L. Mulgrew, Nuala M. Ramsey, Joanne M. Dougan, Caoifa McKiernan, John Grishagin, Ivan V. Mills, Ken I. Thompson, Alexander |
| author_sort | Roulston, Gary D.R. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Development of anti-cancer drugs towards clinical application is costly and inefficient. Large screens of drugs, efficacious for non-cancer disease, are currently being used to identify candidates for repurposing based on their anti-cancer properties. Here, we show that low-dose salinomycin, a coccidiostat ionophore previously identified in a breast cancer screen, has anti-leukemic efficacy. AML and MLLr cell lines, primary cells and patient samples were sensitive to submicromolar salinomycin. Most strikingly, colony formation of normal hematopoietic cells was unaffected by salinomycin, demonstrating a lack of hemotoxicity at the effective concentrations. Furthermore, salinomycin treatment of primary cells resulted in loss of leukemia repopulation ability following transplantation, as demonstrated by extended recipient survival compared to controls. Bioinformatic analysis of a 17-gene signature identified and validated in primary MLLr cells, uncovered immunomodulatory pathways, hubs and protein interactions as potential transducers of low dose salinomycin treatment. Additionally, increased protein expression of p62/Sqstm1, encoded for by one of the 17 signature genes, demonstrates a role for salinomycin in aggresome/vesicle formation indicative of an autophagic response.
Together, the data support the efficacy of salinomycin as an anti-leukemic at non-hemotoxic concentrations. Further investigation alone or in combination with other therapies is warranted for future clinical trial. |
| first_indexed | 2025-11-14T19:33:40Z |
| format | Article |
| id | nottingham-37804 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:33:40Z |
| publishDate | 2016 |
| publisher | Impact Journals |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-378042020-05-04T18:13:30Z https://eprints.nottingham.ac.uk/37804/ Low-dose salinomycin induces anti-leukemic responses in AML and MLL Roulston, Gary D.R. Burt, Charlotte L. Kettyle, Laura M.J. Matchett, Kyle B. Keenan, Heather L. Mulgrew, Nuala M. Ramsey, Joanne M. Dougan, Caoifa McKiernan, John Grishagin, Ivan V. Mills, Ken I. Thompson, Alexander Development of anti-cancer drugs towards clinical application is costly and inefficient. Large screens of drugs, efficacious for non-cancer disease, are currently being used to identify candidates for repurposing based on their anti-cancer properties. Here, we show that low-dose salinomycin, a coccidiostat ionophore previously identified in a breast cancer screen, has anti-leukemic efficacy. AML and MLLr cell lines, primary cells and patient samples were sensitive to submicromolar salinomycin. Most strikingly, colony formation of normal hematopoietic cells was unaffected by salinomycin, demonstrating a lack of hemotoxicity at the effective concentrations. Furthermore, salinomycin treatment of primary cells resulted in loss of leukemia repopulation ability following transplantation, as demonstrated by extended recipient survival compared to controls. Bioinformatic analysis of a 17-gene signature identified and validated in primary MLLr cells, uncovered immunomodulatory pathways, hubs and protein interactions as potential transducers of low dose salinomycin treatment. Additionally, increased protein expression of p62/Sqstm1, encoded for by one of the 17 signature genes, demonstrates a role for salinomycin in aggresome/vesicle formation indicative of an autophagic response. Together, the data support the efficacy of salinomycin as an anti-leukemic at non-hemotoxic concentrations. Further investigation alone or in combination with other therapies is warranted for future clinical trial. Impact Journals 2016-09-06 Article PeerReviewed Roulston, Gary D.R., Burt, Charlotte L., Kettyle, Laura M.J., Matchett, Kyle B., Keenan, Heather L., Mulgrew, Nuala M., Ramsey, Joanne M., Dougan, Caoifa, McKiernan, John, Grishagin, Ivan V., Mills, Ken I. and Thompson, Alexander (2016) Low-dose salinomycin induces anti-leukemic responses in AML and MLL. Oncotarget . ISSN 1949-2553 drug repurposing salinomycin anti-leukemia gene signature AML/MLL-rearrangements http://www.impactjournals.com/oncotarget/index.php?journal=oncotarget&page=article&op=view&path%5b%5d=11866 doi:10.18632/oncotarget.11866 doi:10.18632/oncotarget.11866 |
| spellingShingle | drug repurposing salinomycin anti-leukemia gene signature AML/MLL-rearrangements Roulston, Gary D.R. Burt, Charlotte L. Kettyle, Laura M.J. Matchett, Kyle B. Keenan, Heather L. Mulgrew, Nuala M. Ramsey, Joanne M. Dougan, Caoifa McKiernan, John Grishagin, Ivan V. Mills, Ken I. Thompson, Alexander Low-dose salinomycin induces anti-leukemic responses in AML and MLL |
| title | Low-dose salinomycin induces anti-leukemic responses in AML and MLL |
| title_full | Low-dose salinomycin induces anti-leukemic responses in AML and MLL |
| title_fullStr | Low-dose salinomycin induces anti-leukemic responses in AML and MLL |
| title_full_unstemmed | Low-dose salinomycin induces anti-leukemic responses in AML and MLL |
| title_short | Low-dose salinomycin induces anti-leukemic responses in AML and MLL |
| title_sort | low-dose salinomycin induces anti-leukemic responses in aml and mll |
| topic | drug repurposing salinomycin anti-leukemia gene signature AML/MLL-rearrangements |
| url | https://eprints.nottingham.ac.uk/37804/ https://eprints.nottingham.ac.uk/37804/ https://eprints.nottingham.ac.uk/37804/ |