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| Item Type: | Article |
|---|---|
| Title: | Influences of opioids and nanoparticles on in vitro wound healing models |
| Creators Name: | Wolf, N.B., Küchler, S., Radowski, M.R., Blaschke, T., Kramer, K.D., Weindl, G., Kleuser, B., Haag, R. and Schäfer-Korting, M. |
| Abstract: | For efficient pain reduction in severe skin wounds, topical opioids may be a new option – given that wound healing is not impaired and the vehicle allows for slow opioid release, since long intervals of painful wound dressing changes are intended. We investigated the influence of opioids on the wound healing process via in vitro models, migration assay and scratch test. In fact, morphine, hydromorphone, fentanyl and buprenorphine increased the number of migrated HaCaT cells (spontaneously transformed keratinocytes) twofold. In the scratch test, morphine accelerated the closure of a monolayer wound (scratch). As possible slow release application forms are nanoparticulate systems like solid lipid nanoparticles (SLN) and dendritic core-multishell (CMS) nanotransporters, we evaluated the effect of unloaded nanoparticles on HaCaT cell migration, too. CMS nanotransporters did not inhibit migration, SLN even enhanced it (twofold). Applying morphine plus unloaded nanoparticles reduced morphine effects possibly due to uptake into CMS nanotransporters and adsorption to the surface of SLN. In contrast to SLN, TGF-β1 was taken up by CMS nanotransporters, too. Both nanoparticles are tolerable by skin and eye as derived from Episkin-SMTM skin irritation test and HET-CAM assay. No acute toxic effects were observed either. In conclusion, opioids as well as the investigated nanoparticulate carriers conform the essential conditions for topical pain reduction. |
| Keywords: | Wound Healing Models, Topical Opioids, Solid Lipid Nanoparticles, Dendritic Core-Multishell Nanotransporters, Skin Irritation Test, HET-CAM Assay, Animals, Chickens |
| Source: | European Journal of Pharmaceutics and Biopharmaceutics |
| ISSN: | 0939-6411 |
| Publisher: | Elsevier |
| Volume: | 73 |
| Number: | 1 |
| Page Range: | 34-42 |
| Date: | September 2009 |
| Official Publication: | https://doi.org/10.1016/j.ejpb.2009.03.009 |
| PubMed: | View item in PubMed |
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