Lemon Balm (Melissa officinalis L.) Leaf Extract Promotes Endo180 Production in Dermal Fibroblasts and has Antiwrinkle Effect on Human Skin
Abstract
Background: The collagen receptor Endo180 participates in extracellular matrix remodeling by clearing the pericellular environment and recognizing and internalizing collagen degradation products. In photoaged skin, Endo180 expression in fibroblasts is decreased, and collagen fragments accumulate in the pericellular environment, leading to a decrease in type I collagen production and an increase in matrix metalloproteinase 1 production. This suggests that a decrease in Endo180 production may promote wrinkle formation by decreasing the dermal collagen fibril volume. Therefore, this study aimed to identify materials that promote Endo180 production in vitro and investigate whether promoting Endo180 production could prevent and improve wrinkles in vivo.
Methods: Endo180 gene expression and protein production in fibroblasts were evaluated after screening 71 natural extracts. The conditioned medium of UVB-irradiated keratinocytes and Endo180 production-promoting extract were added to fibroblasts, and Endo180 and type I collagen production were evaluated. In a double-blind, randomized, placebo-controlled study, a cream formulated with an Endo180 production-promoting extract or placebo was topically administered to each side of the face of 20 healthy women twice daily for 8 weeks.
Results: Screening results showed that 50 μg/mL of lemon balm (Melissa officinalis L.) leaf extract (MOLE) resulted in the highest levels of both Endo180 mRNA and protein at 178.1% and 127.4%, respectively.…
How strong is the evidence?
Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 20 participants or records.
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