115 citations
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November 2008 in “Proceedings of the National Academy of Sciences” In this study, the researchers found that mammalian hair likely evolved through the adaptation of existing structural proteins, as similar cysteine-rich α-keratins were identified in chicken and lizard genomes, suggesting pre-mammalian origins.
1398 citations
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May 2008 in “Histochemistry and Cell Biology” This review summarizes the cell type distribution and functional significance of human keratins, emphasizing their roles in tumor diagnosis and potential clinical applications, and reports no new clinical findings.
110 citations
,
August 2004 in “British Journal of Dermatology” In this study, researchers identified the ventral matrix as the primary source of nail plate formation, while the dorsal portion is generated by the apical matrix.
119 citations
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January 2000 in “British Journal of Dermatology” This study found that keratin expression patterns vary within nail unit structures, with the nail matrix uniquely expressing the acidic hair-type keratin Ha1.
139 citations
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December 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” This study identified a new type II cytokeratin, named K6hf, exclusively expressed in the companion layer of the human hair follicle, distinguishing it from other keratins and suggesting a unique biochemical role.
16 citations
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August 1992 in “Archives of dermatological research” Lab-grown nail cells show characteristics similar to natural nail and hair.
356 citations
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December 1986 in “The journal of cell biology/The Journal of cell biology” This study found that specific human hair keratins are differentially expressed in the hair follicle, suggesting a shared pathway of epithelial differentiation between hair cortex and nail plate cells.