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Vancomycin-Loaded Microneedle Arrays against Methicillin-Resistant Staphylococcus Aureus Skin Infections
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2021 (English)In: Advanced Materials Technologies, E-ISSN 2365-709X, Vol. 6, no 7, p. 2001307-, article id 2001307Article in journal (Refereed) Published
Abstract [en]

Skin and soft tissue infections (SSTIs) caused by methicillin-resistant Staphylococcus aureus (MRSA) are a major healthcare burden, often treated with intravenous injection of the glycopeptide antibiotic vancomycin (VAN). However, low local drug concentration in the skin limits its treatment efficiency, while systemic exposure promotes the development of resistant bacterial strains. Topical administration of VAN on skin is ineffective as its high molecular weight prohibits transdermal penetration. In order to implement a local VAN delivery, microneedle (MN) arrays with a water-insoluble support layer for the controlled administration of VAN into the skin are developed. The utilization of such a support layer results in water-insoluble needle shafts surrounded by drug-loaded water-soluble tips with high drug encapsulation. The developed MN arrays can penetrate the dermal barriers of both porcine and fresh human skin. Permeation studies on porcine skin reveal that the majority of the delivered VAN is retained within the skin. It is shown that the VAN-MN array reduces MRSA growth both in vitro and ex vivo on skin. The developed VAN-MN arrays may be extended to several drugs and may facilitate localized treatment of MRSA-caused skin infections while minimizing adverse systemic effects.

Place, publisher, year, edition, pages
Wiley , 2021. Vol. 6, no 7, p. 2001307-, article id 2001307
Keywords [en]
antibiotic, local delivery, microneedle patch, MRSA, PMMA, Antibiotics, Bacteria, Needles, Staphylococcus aureus, Targeted drug delivery, Drug concentration, Glycopeptide antibiotics, High molecular weight, Intravenous injections, Localized treatment, Methicillin-resistant staphylococcus aureus, Soft tissue infections, Treatment efficiency, Controlled drug delivery
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Infectious Medicine
Identifiers
URN: urn:nbn:se:kth:diva-309237DOI: 10.1002/admt.202001307ISI: 000647133400001PubMedID: 34307835Scopus ID: 2-s2.0-85105258328OAI: oai:DiVA.org:kth-309237DiVA, id: diva2:1641266
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QC 20220301

Available from: 2022-03-01 Created: 2022-03-01 Last updated: 2022-09-15Bibliographically approved

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CiteExportLink to record
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