Effects of Streptolysin O on Extracellular Matrix Gene Expression in Normal Human Epidermal Keratinocytes

ML-05 is a non-hemolytic form of streptolysin O, the membrane-damaging extracellular toxin produced by certain streptococci. ML-05 stimulates keratinocyte migration and proliferation in wound-healing scratch assays and promotes wound healing in a human skin organ culture wound model. Pathway-focused...

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Bibliographic Details
Published in:Dose-response 2011-01, Vol.9 (4), p.554-578
Main Authors: Mamber, Stephen W., Gurel, Volkan, Rhodes, Ryan G., McMichael, John
Format: Article
Language:English
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Summary:ML-05 is a non-hemolytic form of streptolysin O, the membrane-damaging extracellular toxin produced by certain streptococci. ML-05 stimulates keratinocyte migration and proliferation in wound-healing scratch assays and promotes wound healing in a human skin organ culture wound model. Pathway-focused DNA microarrays were used to elucidate ML-05's mechanism of action in wound healing processes. Normal human epidermal keratinocytes (NHEK) were treated with varying concentrations of ML-05 for 24 hours, followed by RNA extraction and cRNA production. Gene expression profiling utilized microarrays containing nucleic acid probes for 113 extracellular matrix (ECM) genes. Microarrays yielded 6 upregulated and 4 downregulated genes with ≥2-fold changes and p
ISSN:1559-3258
1559-3258
DOI:10.2203/dose-response.10-050.Mamber