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Updated: Jun 25, 2026

Generation and Culturing of Primary Human Keratinocytes from Adult Skin
Published on: December 22, 2017
Endocrine controls of keratin expression.
Yuval Ramot1, Ralf Paus, Stephan Tiede
1Department of Dermatology, Hadassah-Hebrew University Medical Center, and the Center for Genetic Diseases of the Skin and Hair, Jerusalem, Israel. yramot@gmail.com
Skin keratin production relies on strict endocrine controls from hormones like thyroid, glucocorticoids, retinoic acid, and vitamin D. Understanding these controls is key for skin and hair health and disease treatment.
Area of Science:
- Dermatology
- Endocrinology
- Molecular Biology
Background:
- Keratins are vital intermediate filaments for skin and hair structure and function.
- Skin acts as an endocrine organ, receiving hormonal signals.
- Keratin gene and protein expression require stringent regulation for proper skin physiology.
Purpose of the Study:
- To review the endocrine controls influencing keratin expression in mammalian skin.
- To highlight the importance of understanding these controls for normal skin and hair function.
- To explore potential therapeutic applications for skin and hair diseases.
Main Methods:
- Literature review of studies on endocrine regulation of keratin.
- Analysis of hormonal influences on epidermal and hair keratinization.
- Synthesis of current knowledge on neuroendocrine mediators affecting skin.
Main Results:
- Thyroid hormones, glucocorticoids (GCs), retinoic acid (RA), and vitamin D are key regulators of keratin expression.
- The skin's peripheral endocrine organ status underscores the significance of these controls.
- Multiple neuroendocrine mediators also play a role in regulating keratinization.
Conclusions:
- A comprehensive understanding of endocrine control over keratin expression is essential for insights into skin and hair physiology.
- This knowledge may pave the way for novel therapeutic strategies for various dermatological and hair disorders.
- Further research into these intricate regulatory mechanisms is warranted.
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