Differential selective pressure alters rate of drug resistance acquisition in heterogeneous tumor populations
Recent drug discovery and development efforts have created a large arsenal of targeted and chemotherapeutic drugs for precision medicine. However, drug resistance remains a major challenge as minor pre-existing resistant subpopulations are often found to be enriched at relapse. Current drug design h...
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| Format: | Article |
| Language: | en_US |
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Nature Publishing Group
2017
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| Online Access: | http://hdl.handle.net/1721.1/109785 https://orcid.org/0000-0001-5024-9718 https://orcid.org/0000-0003-4610-1707 |
| _version_ | 1826214503383040000 |
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| author | Sun, Daphne S. Dalin, Simona Hemann, Michael Lauffenburger, Douglas A Zhao, Boyang |
| author2 | Koch Institute for Integrative Cancer Research at MIT |
| author_facet | Koch Institute for Integrative Cancer Research at MIT Sun, Daphne S. Dalin, Simona Hemann, Michael Lauffenburger, Douglas A Zhao, Boyang |
| author_sort | Sun, Daphne S. |
| collection | MIT |
| description | Recent drug discovery and development efforts have created a large arsenal of targeted and chemotherapeutic drugs for precision medicine. However, drug resistance remains a major challenge as minor pre-existing resistant subpopulations are often found to be enriched at relapse. Current drug design has been heavily focused on initial efficacy, and we do not fully understand the effects of drug selective pressure on long-term drug resistance potential. Using a minimal two-population model, taking into account subpopulation proportions and growth/kill rates, we modeled long-term drug treatment and performed parameter sweeps to analyze the effects of each parameter on therapeutic efficacy. We found that drugs with the same overall initial kill may exert differential selective pressures, affecting long-term therapeutic outcome. We validated our conclusions experimentally using a preclinical model of Burkitt’s lymphoma. Furthermore, we highlighted an intrinsic tradeoff between drug-imposed overall selective pressure and rate of adaptation. A principled approach in understanding the effects of distinct drug selective pressures on short-term and long-term tumor response enables better design of therapeutics that ultimately minimize relapse. |
| first_indexed | 2024-09-23T16:06:28Z |
| format | Article |
| id | mit-1721.1/109785 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:06:28Z |
| publishDate | 2017 |
| publisher | Nature Publishing Group |
| record_format | dspace |
| spelling | mit-1721.1/1097852022-09-29T18:16:47Z Differential selective pressure alters rate of drug resistance acquisition in heterogeneous tumor populations Sun, Daphne S. Dalin, Simona Hemann, Michael Lauffenburger, Douglas A Zhao, Boyang Koch Institute for Integrative Cancer Research at MIT Massachusetts Institute of Technology. Computational and Systems Biology Program Massachusetts Institute of Technology. Department of Biological Engineering Massachusetts Institute of Technology. Department of Biology Massachusetts Institute of Technology. Department of Chemical Engineering Sun, Daphne S. Dalin, Simona Hemann, Michael Lauffenburger, Douglas A Zhao, Boyang Recent drug discovery and development efforts have created a large arsenal of targeted and chemotherapeutic drugs for precision medicine. However, drug resistance remains a major challenge as minor pre-existing resistant subpopulations are often found to be enriched at relapse. Current drug design has been heavily focused on initial efficacy, and we do not fully understand the effects of drug selective pressure on long-term drug resistance potential. Using a minimal two-population model, taking into account subpopulation proportions and growth/kill rates, we modeled long-term drug treatment and performed parameter sweeps to analyze the effects of each parameter on therapeutic efficacy. We found that drugs with the same overall initial kill may exert differential selective pressures, affecting long-term therapeutic outcome. We validated our conclusions experimentally using a preclinical model of Burkitt’s lymphoma. Furthermore, we highlighted an intrinsic tradeoff between drug-imposed overall selective pressure and rate of adaptation. A principled approach in understanding the effects of distinct drug selective pressures on short-term and long-term tumor response enables better design of therapeutics that ultimately minimize relapse. Koch Institute for Integrative Cancer Research (Support (core) Grant P30-CA14051) National Cancer Institute (U.S.). Integrative Cancer Biology Program (Grant U54-CA112967) National Institute of General Medical Sciences (U.S.) (Interdepartmental Biotechnology Training Program 5T32GM008334) 2017-06-12T13:57:13Z 2017-06-12T13:57:13Z 2016-11 2016-06 Article http://purl.org/eprint/type/JournalArticle 2045-2322 http://hdl.handle.net/1721.1/109785 Sun, Daphne, Simona Dalin, Michael T. Hemann, Douglas A. Lauffenburger, and Boyang Zhao. “Differential Selective Pressure Alters Rate of Drug Resistance Acquisition in Heterogeneous Tumor Populations.” Scientific Reports 6, no. 1 (November 7, 2016). https://orcid.org/0000-0001-5024-9718 https://orcid.org/0000-0003-4610-1707 en_US http://dx.doi.org/10.1038/srep36198 Scientific Reports Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/ application/pdf Nature Publishing Group Nature |
| spellingShingle | Sun, Daphne S. Dalin, Simona Hemann, Michael Lauffenburger, Douglas A Zhao, Boyang Differential selective pressure alters rate of drug resistance acquisition in heterogeneous tumor populations |
| title | Differential selective pressure alters rate of drug resistance acquisition in heterogeneous tumor populations |
| title_full | Differential selective pressure alters rate of drug resistance acquisition in heterogeneous tumor populations |
| title_fullStr | Differential selective pressure alters rate of drug resistance acquisition in heterogeneous tumor populations |
| title_full_unstemmed | Differential selective pressure alters rate of drug resistance acquisition in heterogeneous tumor populations |
| title_short | Differential selective pressure alters rate of drug resistance acquisition in heterogeneous tumor populations |
| title_sort | differential selective pressure alters rate of drug resistance acquisition in heterogeneous tumor populations |
| url | http://hdl.handle.net/1721.1/109785 https://orcid.org/0000-0001-5024-9718 https://orcid.org/0000-0003-4610-1707 |
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