TLDR Keratin-associated proteins are part of the developing hair fiber cuticle.
The study from January 1, 2010, used immunoelectron microscopy to locate keratin-associated proteins (KAP) 5.1 and 10.1 in developing hair fiber cuticle cells, finding them primarily in the exocuticle and a-layer, while cornified envelope proteins involucrin and loricrin were absent. This suggested a simpler protein composition of the fiber cuticle than previously thought, with KAP proteins potentially cross-linked by cuticle TGase 3. The findings provided insights into the structural organization and functional roles of KAPs in hair fiber development, contributing to a better understanding of hair biology and the molecular mechanisms of hair formation.
40 citations
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September 2010 in “Journal of Biological Chemistry” Keratin K80 is an ancient protein found in various tissues, important for cell structure and tissue differentiation.
28 citations
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August 2005 in “Journal of Investigative Dermatology” TG5 helps maintain hair follicle health, while TG3 aids in hair shaft development.
40 citations
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April 1999 in “Journal of Histochemistry & Cytochemistry” S100A3 protein is mainly found in specific parts of human hair cells.
228 citations
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January 1997 in “Birkhäuser Basel eBooks” Keratin proteins and their genes are crucial for hair growth and structure.
22 citations
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October 1996 in “Dermatologic clinics” Understanding intermediate filaments helps explain hair health and related diseases.
67 citations
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December 1990 in “The journal of cell biology/The Journal of cell biology” Researchers found genes for cysteine-rich proteins that form the protective layer of hair in humans and sheep.
116 citations
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April 1986 in “The journal of cell biology/The Journal of cell biology” Trichohyalin is a protein in hair follicles that helps form hair filaments.
May 2024 in “bioRxiv (Cold Spring Harbor Laboratory)” KAP-depleted hair causes less immune response and is more biocompatible for implants.
62 citations
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January 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” A second domain of high sulfur KAP genes on chromosome 21q23 is crucial for hair structure.
Water and fatty acids affect hair's surface differently based on hair damage, and models can help understand hair-cosmetic interactions.
38 citations
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October 2011 in “Analytical biochemistry” Hair proteins have weak spots in their α-helical segments.
199 citations
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January 2004 in “The International Journal of Developmental Biology” Hair follicle growth and development are controlled by specific genes and molecular signals.