Cited by 45Dermatology and Skin DiseasesContact Dermatitis and AllergiesPsoriasis: Treatment and Pathogenesis

Galactomyces fermentation filtrate prevents T helper 2‐mediated reduction of filaggrin in an aryl hydrocarbon receptor‐dependent manner

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Takei, K., Mitoma, C., Hashimoto‐Hachiya, A., Takahara, M., Tsuji, G., Nakahara, T., Furue, M.·2015·Clinical and Experimental Dermatology

Abstract

Background The aryl hydrocarbon receptor (AhR) recognizes diverse small molecules such as dioxins, tryptophan photoproducts and phytochemicals. It also plays crucial roles in epidermal homeostasis by upregulating epidermal barrier proteins. In preliminary screening, we found that Galactomyces fermentation filtrate (GFF), a cosmetic compound, was capable of activating AhR. Aim To examine whether GFF upregulates the expression of the filaggrin and loricrin genes, FLG and LOR, in an AhR-dependent manner. Methods The activation (cytoplasmic to nuclear translocation) of AhR was confirmed by immunofluorescence study and by upregulation of an AhR-specific marker, cytochrome P450-1A1 (CYP1A1). Gene expression levels were compared by quantitative reverse transcription PCR with or without GFF, interleukin (IL)-4 or IL-13 in normal human keratinocytes. AhR or control knockdown was carried out by transfection with AhR or control small interfering RNA. The protein expression of FLG and LOR was examined by immunohistochemistry using a three-dimensional epidermal equivalent treated with or without GFF or T helper (Th)2 cytokines. Results GFF induced the nuclear translocation of AhR with significant and dose-dependent upregulation of CYP1A1, FLG and LOR gene expression. The enhancing effects of GFF were abolished in AhR-knockdown keratinocytes. Th2 cytokines decreased expression of genes for FLG and LOR, and this expression was completely restored in the presence of GFF. The downregulated ex…

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Crossref · 10.1111/ced.12635

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Authors
Takei, K., Mitoma, C., Hashimoto‐Hachiya, A., Takahara, M., Tsuji, G., Nakahara, T., & Furue, M.
Affiliations
Kyushu University (JP)
Corresponding author
Furue, M.
Venue
Clinical and Experimental Dermatology
Published
2015-03-18
Volume
40
Issue
7
Pages
786-793
ISSN
  • 0307-6938 (ISSN-L)
  • 1365-2230
OpenAlex
W2068915983
Cited by
45
References
21
Citations by year
2026: 1 · 2025: 3 · 2024: 8 · 2023: 6 · 2022: 4 · 2021: 5 · 2020: 7 · 2019: 4 · 2018: 1 · 2017: 3 · 2016: 2 · 2015: 1
FWCI
2.60
Type
journal article
Language
en
Open access
Locations
  • Clinical and Experimental Dermatology (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
  • P&G Innovation Godo Kaisha
  • Ministry of Health, Labour and Welfare
  • Environment Technology Development Fund of the Ministry of the Environment, Japan
Topics
  • Health Sciences › Medicine › Dermatology › Dermatology and Skin Diseases
  • Health Sciences › Medicine › Dermatology › Contact Dermatitis and Allergies
  • Life Sciences › Immunology and Microbiology › Immunology › Psoriasis: Treatment and Pathogenesis
Keywords
aryl hydrocarbon receptor, filaggrin, loricrin, Th2 cytokines, IL-4, IL-13, skin barrier, keratinocytes, CYP1A1, occludin, claudins, kallikrein, epidermal equivalents
MeSH terms
Epidermal Cells, Filaggrin Proteins, Analysis of Variance, Cells, Cultured, Saccharomycetales, Fermentation, T-Lymphocytes, Helper-Inducer, Humans, Intermediate Filament Proteins, Membrane Proteins, Transfection, Keratinocytes, Up-Regulation, Receptors, Aryl Hydrocarbon, Microscopy, Confocal, Cytochrome P-450 CYP1A1, Reverse Transcriptase Polymerase Chain Reaction

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