Location of Keratin-Associated Proteins in Developing Fiber Cuticle Cells Using Immunoelectron Microscopy

    January 2010 in “ International journal of trichology ”
    LN Jones, George E. Rogers, Nicholas W Rufaut, Rodney Sinclair
    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.
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