RNA Sequencing Reveals Effects of a New Complex Bath Additive on Cultured Cells
In recent years, bath additives developed to enhance the physiological benefits of bathing have become a popular part of self-care routines. However, there has been little investigation of the biological effects of these additives, especially in terms of their impact on gene expression. To bridge th...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-05-01
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| Series: | Cosmetics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-9284/12/3/98 |
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| Summary: | In recent years, bath additives developed to enhance the physiological benefits of bathing have become a popular part of self-care routines. However, there has been little investigation of the biological effects of these additives, especially in terms of their impact on gene expression. To bridge this research gap, this study was implemented to reveal the effects of a newly developed complex bath additive, <i>Karada Totonou ProBath</i> (KTPB), on gene expression, using RNA sequencing (RNA-seq). Two human skin-derived cell lines (keratinocytes and fibroblasts) were treated with KTPB at a final concentration of 100 μg/mL, and RNA extracted between 15 and 240 min after treatment was subjected to RNA-seq analysis. The results showed that KTPB induced significant changes in the expression of over 80 genes in both cell lines. In particular, the expression levels of genes encoding Early Growth Response Protein 1 and Hyaluronic Acid Synthases increased over time following the treatment. Enrichment analysis showed the upregulation of pathways associated with cell activation in both cell types, with no evidence of KTPB-related cytotoxicity. The findings suggest that KTPB activates the metabolism of skin cells through hormesis without inducing toxicity. Our results provide new insights promoting future research in this field. |
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| ISSN: | 2079-9284 |