Related Experiment Video
Updated: May 28, 2026
07:29
Characterization of In Vitro Differentiation of Human Primary Keratinocytes by RNA-Seq Analysis
Published on: May 16, 2020
Microarray analysis reveals increased expression of ΔNp63α in seborrhoeic keratosis
1Department of Dermatology, Seoul National University College of Medicine, Seoul National University Hospital, 28 Yongon-dong, Jongno-gu, Seoul 110-744, Korea.
The British Journal of Dermatology
|October 5, 2011
Summary
Researchers identified 19 differentially expressed genes in seborrhoeic keratoses (SKs), a common benign skin condition. The p63 transcription factor was found to be upregulated, influencing the expression of other genes involved in SK pathogenesis.
Area of Science:
- Dermatology
- Molecular Biology
- Genetics
Background:
- Seborrhoeic keratoses (SKs) are common benign epidermal growths.
- Risk factors include UV radiation, aging, and viruses, but pathogenesis is unclear.
Purpose of the Study:
- Identify genes involved in SK pathogenesis.
- Characterize the role of specific genes in SK development.
Main Methods:
- Gene expression profiling using cDNA microarray on paired lesional and nonlesional skin.
- Immunofluorescence to assess protein expression.
- siRNA-mediated gene knockdown to evaluate gene function.
- Chromatin immunoprecipitation assay to determine gene regulation.
Main Results:
- 19 differentially expressed genes identified in SK.
- Upregulation of p63 transcription factor, specifically the ΔNp63α isoform, in SK lesions.
- Knockdown of ΔNp63 downregulated 11 genes, including TNS4.
- TNS4 identified as a direct target gene of p63.
Conclusions:
- Identified key upregulated genes in SK.
- Elucidated the role of p63 in regulating the SK transcriptome.
- Provided insights into the molecular mechanisms underlying benign SK development.
