Gardenia jasminoides fruit extract alleviates MC903-induced atopic dermatitis and reduces IL-4/IL-13-induced tight junction disruption and inflammation by regulating the phosphorylation of STAT6.
Xu P, Wan Y, Jin X, Yuan Y, Ma H
Plant Medicine
PubMedGardenia — a plant many people grow for its fragrant white flowers — turns out to produce compounds in its fruit that could lead to new, plant-based treatments for eczema, one of the most common and uncomfortable skin conditions affecting millions worldwide.
Scientists tested an extract made from gardenia fruit on skin cells, lab-grown skin tissue, and mice with an eczema-like condition. They found it calmed the redness and inflammation while also helping the skin rebuild its natural protective barrier — the layer that keeps irritants out and moisture in. They traced this effect to the extract blocking a specific 'on/off switch' inside skin cells that normally triggers the inflammatory response.
Key Findings
Gardenia fruit extract suppressed key inflammatory signaling molecules (including IL-24, IL-33, and CCL26) in both lab-grown skin models and living mice treated for 8 consecutive days.
The extract promoted expression of proteins (CLDN1, CLDN4, OVOL1) that are critical for maintaining the skin's tight-junction barrier, which is typically damaged in atopic dermatitis.
The anti-inflammatory and barrier-repair effects were mediated through the JAK-STAT6 signaling pathway, with STAT6 phosphorylation identified as the central regulatory mechanism.
chevron_right Technical Summary
Researchers found that an extract from gardenia fruit can reduce symptoms of a common inflammatory skin condition (atopic dermatitis) by calming immune overreaction and helping repair the skin's protective barrier, with the key mechanism identified as blocking a specific protein signaling pathway.
Abstract Preview
The fruit of Gardenia jasminoides Ellis, which belongs to the plant family Rubiaceae, was first recorded in Shennong's Herbal Medicine and has been used in traditional Chinese medicine. Pharmacolog...
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Gardenia is a genus of flowering plants in the coffee family, Rubiaceae, native to the tropical and subtropical regions of Africa, Asia, Madagascar, Pacific Islands, and Australia.