Resistant traits in digital organisms do not revert preselection status despite extended deselection : implications to microbial antibiotics resistance
Antibiotics resistance is a serious biomedical issue as formally susceptible organisms gain resistance under its selective pressure. There have been contradictory results regarding the prevalence of resistance following withdrawal and disuse of the specific antibiotics. Here, we use experimental evo...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2014
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| Online Access: | https://hdl.handle.net/10356/103715 http://hdl.handle.net/10220/20015 |
| _version_ | 1811695266833629184 |
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| author | Castillo, Clarence F. G. Ling, Maurice H. T. |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Castillo, Clarence F. G. Ling, Maurice H. T. |
| author_sort | Castillo, Clarence F. G. |
| collection | NTU |
| description | Antibiotics resistance is a serious biomedical issue as formally susceptible organisms gain resistance under its selective pressure. There have been contradictory results regarding the prevalence of resistance following withdrawal and disuse of the specific antibiotics. Here, we use experimental evolution in “digital organisms” to examine the rate of gain and loss of resistance under the assumption that there is no fitness cost for maintaining resistance. Our results show that selective pressure is likely to result in maximum resistance with respect to the selective pressure. During deselection as a result of disuse of the specific antibiotics, a large initial loss and prolonged stabilization of resistance are observed, but resistance is not lost to the stage of preselection. This suggests that a pool of partial persists organisms persist long after withdrawal of selective pressure at a relatively constant proportion. Hence, contradictory results regarding the prevalence of resistance following withdrawal and disuse of the specific antibiotics may be a statistical variation about constant proportion. Our results also show that subsequent reintroduction of the same selective pressure results in rapid regain of maximal resistance. Thus, our simulation results suggest that complete elimination of specific antibiotics resistance is unlikely after the disuse of antibiotics once a resistant pool of microorganisms has been established. |
| first_indexed | 2024-10-01T07:20:45Z |
| format | Journal Article |
| id | ntu-10356/103715 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:20:45Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/1037152023-12-29T06:52:05Z Resistant traits in digital organisms do not revert preselection status despite extended deselection : implications to microbial antibiotics resistance Castillo, Clarence F. G. Ling, Maurice H. T. School of Chemical and Biomedical Engineering DRNTU::Science::Medicine::Biomedical engineering Antibiotics resistance is a serious biomedical issue as formally susceptible organisms gain resistance under its selective pressure. There have been contradictory results regarding the prevalence of resistance following withdrawal and disuse of the specific antibiotics. Here, we use experimental evolution in “digital organisms” to examine the rate of gain and loss of resistance under the assumption that there is no fitness cost for maintaining resistance. Our results show that selective pressure is likely to result in maximum resistance with respect to the selective pressure. During deselection as a result of disuse of the specific antibiotics, a large initial loss and prolonged stabilization of resistance are observed, but resistance is not lost to the stage of preselection. This suggests that a pool of partial persists organisms persist long after withdrawal of selective pressure at a relatively constant proportion. Hence, contradictory results regarding the prevalence of resistance following withdrawal and disuse of the specific antibiotics may be a statistical variation about constant proportion. Our results also show that subsequent reintroduction of the same selective pressure results in rapid regain of maximal resistance. Thus, our simulation results suggest that complete elimination of specific antibiotics resistance is unlikely after the disuse of antibiotics once a resistant pool of microorganisms has been established. Published version 2014-07-03T01:18:22Z 2019-12-06T21:18:39Z 2014-07-03T01:18:22Z 2019-12-06T21:18:39Z 2014 2014 Journal Article Castillo, C. F. G., & Ling, M. H. T. (2014). Resistant Traits in Digital Organisms Do Not Revert Preselection Status despite Extended Deselection: Implications to Microbial Antibiotics Resistance. BioMed Research International, 2014, 648389-. 2314-6133 https://hdl.handle.net/10356/103715 http://hdl.handle.net/10220/20015 10.1155/2014/648389 24977157 en BioMed research international © 2014 Clarence F. G. Castillo and Maurice H. T. Ling. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. application/pdf |
| spellingShingle | DRNTU::Science::Medicine::Biomedical engineering Castillo, Clarence F. G. Ling, Maurice H. T. Resistant traits in digital organisms do not revert preselection status despite extended deselection : implications to microbial antibiotics resistance |
| title | Resistant traits in digital organisms do not revert preselection status despite extended deselection : implications to microbial antibiotics resistance |
| title_full | Resistant traits in digital organisms do not revert preselection status despite extended deselection : implications to microbial antibiotics resistance |
| title_fullStr | Resistant traits in digital organisms do not revert preselection status despite extended deselection : implications to microbial antibiotics resistance |
| title_full_unstemmed | Resistant traits in digital organisms do not revert preselection status despite extended deselection : implications to microbial antibiotics resistance |
| title_short | Resistant traits in digital organisms do not revert preselection status despite extended deselection : implications to microbial antibiotics resistance |
| title_sort | resistant traits in digital organisms do not revert preselection status despite extended deselection implications to microbial antibiotics resistance |
| topic | DRNTU::Science::Medicine::Biomedical engineering |
| url | https://hdl.handle.net/10356/103715 http://hdl.handle.net/10220/20015 |
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