Endothelin-1 Production by Human Keratinocytes
Author Information
Author(s): Hajime Inoue, Nagaoki Wakisaka, Nobuhiro Tane, Kazumasa Ando, Emiko Isono, Miwa Yamanaka, Masaki Aihara, Hirotomo Ishida
Primary Institution: St Marianna University School of Medicine
Hypothesis
Do cultured keratinocytes produce endothelin-1?
Conclusion
Cultured keratinocytes derived from normal human skin produce endothelin-1, which can be regulated by various substances.
Supporting Evidence
- Cultured keratinocytes produced endothelin-1 at a level of 23.79 pg/well after 24 hours.
- Endothelin-1 production was completely inhibited by actinomycin D.
- Recombinant interleukin-1 increased endothelin-1 production in a dose-dependent manner.
- Thrombin and heparin inhibited endothelin-1 production at different concentrations.
Takeaway
This study found that skin cells can make a special protein called endothelin-1, which helps control how other cells work.
Methodology
Keratinocytes were cultured from excess skin and endothelin-1 production was measured after treatment with various substances.
Limitations
The exact role of endothelin-1 produced by keratinocytes is still unclear.
Participant Demographics
Normal human skin samples were used for keratinocyte cultures.
Statistical Information
P-Value
<0.001
Statistical Significance
p<0.001
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