Elimination of the biphasic pharmacodynamics of 15d-PGJ2 by controlling its release from a nanoemulsion
Saed Abbasi,* Kazuaki Kajimoto,* Hideyoshi Harashima Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan *These authors contributed equally to this work Abstract: 15-Deoxy-Δ12,14-prostaglandin J2 (15d-PGJ2) has a dual action of stimulating anti-inf...
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| Format: | Article |
| Language: | English |
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Dove Medical Press
2016-06-01
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| Series: | International Journal of Nanomedicine |
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| Online Access: | https://www.dovepress.com/elimination-of-the-biphasic-pharmacodynamics-of-15d-pgj2-by-controllin-peer-reviewed-article-IJN |
| _version_ | 1818842578073681920 |
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| author | Abbasi S Kajimoto K Harashima H |
| author_facet | Abbasi S Kajimoto K Harashima H |
| author_sort | Abbasi S |
| collection | DOAJ |
| description | Saed Abbasi,* Kazuaki Kajimoto,* Hideyoshi Harashima Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan *These authors contributed equally to this work Abstract: 15-Deoxy-Δ12,14-prostaglandin J2 (15d-PGJ2) has a dual action of stimulating anti-inflammation and anti-proliferation when exogenously administered at high doses. However, at lower doses, it can be toxic inducing opposite actions, ie, stimulation of both inflammation and cell proliferation. This biphasic phenomenon of 15d-PGJ2 is believed to be due to its multitarget behavior. In this study, we provide a strategy for controlling such biphasic pharmacodynamics by separating its dual actions while retaining the beneficial one by using a nanoemulsion (NE). The 15d-PGJ2 was encapsulated in the NE composed of triolein/distearoyl phosphatidylcholine/Tween 80 at a high encapsulation ratio (>83%). Furthermore, NE enhanced drug retention by slowing down its release rate, which was, unconventionally, inversely dependent on the total surface area of the NE system. Next, focusing on the biphasic effect on cell proliferation, we found that the 15d-PGJ2-loaded slow-release NE showed only a dose-dependent inhibition of the viability of a mouse macrophage cell line, RAW264.7, although a fast-release NE as well as free 15d-PGJ2 exerted a biphasic effect. The observed slow-release kinetics are believed to be responsible for elimination of the biphasic pharmacodynamics of 15d-PGJ2 mainly for two reasons: 1) a high proportion of 15d-PGJ2 that is retained in the NE was delivered to the cytosol, where proapoptotic targets are located and 2) 15d-PGJ2 was able to bypass cell membrane-associated targets that lead to the induction of cellular proliferation. Collectively, our strategy of eliminating the 15d-PGJ2-induced biphasic pharmacodynamics was based on the delivery of 15d-PGJ2 to its desired site of action, excluding undesired sites, on a subcellular level. Keywords: drug release, surface localization, anti-proliferative effect, cellular uptake, subcellular delivery |
| first_indexed | 2024-12-19T04:44:12Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 1178-2013 |
| language | English |
| last_indexed | 2024-12-19T04:44:12Z |
| publishDate | 2016-06-01 |
| publisher | Dove Medical Press |
| record_format | Article |
| series | International Journal of Nanomedicine |
| spelling | doaj.art-fc5036ff0d42407aa90e7e2bc9ed4a712022-12-21T20:35:32ZengDove Medical PressInternational Journal of Nanomedicine1178-20132016-06-012016default2685269427337Elimination of the biphasic pharmacodynamics of 15d-PGJ2 by controlling its release from a nanoemulsionAbbasi SKajimoto KHarashima HSaed Abbasi,* Kazuaki Kajimoto,* Hideyoshi Harashima Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan *These authors contributed equally to this work Abstract: 15-Deoxy-Δ12,14-prostaglandin J2 (15d-PGJ2) has a dual action of stimulating anti-inflammation and anti-proliferation when exogenously administered at high doses. However, at lower doses, it can be toxic inducing opposite actions, ie, stimulation of both inflammation and cell proliferation. This biphasic phenomenon of 15d-PGJ2 is believed to be due to its multitarget behavior. In this study, we provide a strategy for controlling such biphasic pharmacodynamics by separating its dual actions while retaining the beneficial one by using a nanoemulsion (NE). The 15d-PGJ2 was encapsulated in the NE composed of triolein/distearoyl phosphatidylcholine/Tween 80 at a high encapsulation ratio (>83%). Furthermore, NE enhanced drug retention by slowing down its release rate, which was, unconventionally, inversely dependent on the total surface area of the NE system. Next, focusing on the biphasic effect on cell proliferation, we found that the 15d-PGJ2-loaded slow-release NE showed only a dose-dependent inhibition of the viability of a mouse macrophage cell line, RAW264.7, although a fast-release NE as well as free 15d-PGJ2 exerted a biphasic effect. The observed slow-release kinetics are believed to be responsible for elimination of the biphasic pharmacodynamics of 15d-PGJ2 mainly for two reasons: 1) a high proportion of 15d-PGJ2 that is retained in the NE was delivered to the cytosol, where proapoptotic targets are located and 2) 15d-PGJ2 was able to bypass cell membrane-associated targets that lead to the induction of cellular proliferation. Collectively, our strategy of eliminating the 15d-PGJ2-induced biphasic pharmacodynamics was based on the delivery of 15d-PGJ2 to its desired site of action, excluding undesired sites, on a subcellular level. Keywords: drug release, surface localization, anti-proliferative effect, cellular uptake, subcellular deliveryhttps://www.dovepress.com/elimination-of-the-biphasic-pharmacodynamics-of-15d-pgj2-by-controllin-peer-reviewed-article-IJNdrug releasesurface localizationanti-proliferative effectcellular uptake |
| spellingShingle | Abbasi S Kajimoto K Harashima H Elimination of the biphasic pharmacodynamics of 15d-PGJ2 by controlling its release from a nanoemulsion International Journal of Nanomedicine drug release surface localization anti-proliferative effect cellular uptake |
| title | Elimination of the biphasic pharmacodynamics of 15d-PGJ2 by controlling its release from a nanoemulsion |
| title_full | Elimination of the biphasic pharmacodynamics of 15d-PGJ2 by controlling its release from a nanoemulsion |
| title_fullStr | Elimination of the biphasic pharmacodynamics of 15d-PGJ2 by controlling its release from a nanoemulsion |
| title_full_unstemmed | Elimination of the biphasic pharmacodynamics of 15d-PGJ2 by controlling its release from a nanoemulsion |
| title_short | Elimination of the biphasic pharmacodynamics of 15d-PGJ2 by controlling its release from a nanoemulsion |
| title_sort | elimination of the biphasic pharmacodynamics of 15d pgj2 by controlling its release from a nanoemulsion |
| topic | drug release surface localization anti-proliferative effect cellular uptake |
| url | https://www.dovepress.com/elimination-of-the-biphasic-pharmacodynamics-of-15d-pgj2-by-controllin-peer-reviewed-article-IJN |
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