Saffron Flower Extract Promotes Scratch Wound Closure of Keratinocytes and Enhances VEGF Production

dc.accessRightsAnonymous
dc.audienceScience
dc.contributor.authorVerjee, Sheela
dc.contributor.authorGaro, Eliane
dc.contributor.authorPelaez, Sarah
dc.contributor.authorFertig, Orlando
dc.contributor.authorHamburger, Matthias
dc.contributor.authorButterweck, Veronika
dc.date.accessioned2018-01-09T12:57:47Z
dc.date.available2018-01-09T12:57:47Z
dc.date.issued2017
dc.description.abstractDuring saffron (Crocus sativus) spice production, large amounts of floral biowaste are generated. It was the aim of this study to develop a value-added product from saffron floral biowaste to be used as a natural cosmetic ingredient. HPLC-PDA-MS analysis of saffron flower extracts revealed the presence of flavonols with the highest amounts in the acetone extract. Kaempferol-3-O-sophoroside was identified as the main flavonoid in the acetone extract (saffron flower acetone extract). Saffron flower acetone extract and kaempferol-3-O-sophoroside were tested in HaCaT cells for potential effects on cell migration, proliferation, and for anti-inflammatory properties. Saffron flower acetone extract concentration dependently (50–200 µg/mL) augmented cell proliferation, as indicated by an increased BrdU-incorporation, while kaempferol-3-O-sophoroside (1–50 µM) had no effect. Furthermore, treatment of HaCaT cells with saffron flower acetone extract, but not with kaempferol-3-O-sophoroside, concentration-dependently increased vascular endothelial growth factor secretion (control 49.72 pg/mL vs. saffron flower acetone extract at 200 µg/mL 218.60 pg/mL). Cell migration was determined using time-lapse microscopy and a modification of the scratch-wound assay in which saffron flower acetone extract significantly improved wound closure compared to the untreated control. Overproduction of the proinflammatory cytokines interleukin-8 and interleukin-6 in HaCaT cells was induced by TNF-α. Kaempferol-3-O-sophoroside (10–50 µM), but not saffron flower acetone extract, inhibited TNF-α-induced IL-8 secretion. The effect was comparable to 10 µM hydrocortisone (positive control). Interestingly, saffron flower acetone extract further increased IL-6 levels in TNF-α-treated HaCaT cells in a concentration-dependent manner. In summary, the pronounced wound healing properties of saffron flower acetone extract present a promising application for the cosmetic industry.
dc.identifier.doi10.1055/s-0043-109002
dc.identifier.issn1439-0221
dc.identifier.issn0032-0943
dc.identifier.urihttp://hdl.handle.net/11654/25774
dc.issue14-15
dc.language.isoenen_US
dc.publisherThiemeen_US
dc.relation.ispartofPlanta Medicaen_US
dc.subjectCrocus sativus
dc.subjectbiowaste
dc.subjectcell proliferation
dc.subjectcell migration
dc.subjectinflammation
dc.subjectkaempferol-3-O-sophoroside
dc.subjectcosmetics
dc.subjectIridaceae
dc.titleSaffron Flower Extract Promotes Scratch Wound Closure of Keratinocytes and Enhances VEGF Production
dc.type01A - Beitrag in wissenschaftlicher Zeitschrift
dc.volume83
dspace.entity.typePublication
fhnw.InventedHereYes
fhnw.IsStudentsWorkno
fhnw.PublishedSwitzerlandYes
fhnw.ReviewTypeAnonymous ex ante peer review of a complete publication
fhnw.affiliation.hochschuleHochschule für Life Sciencesde_CH
fhnw.affiliation.institutInstitut für Pharma Technologyde_CH
fhnw.pagination1176-1183
fhnw.publicationOnlineJa
fhnw.publicationStatePublished
relation.isAuthorOfPublication169478d0-7102-45a6-9427-1d60caa2e5cf
relation.isAuthorOfPublication.latestForDiscovery169478d0-7102-45a6-9427-1d60caa2e5cf
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