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KAP8.1 protein is crucial for hair structure and interacts with keratin 85.

In this study, PEG and keratin scaffolds selectively influenced protein release rates based on charge and size, suggesting their potential for targeted delivery of protein therapeutics.

This review highlights the role of matriptase in epithelial differentiation and cancer, noting that unregulated matriptase expression can enhance cancer progression in animal models, but reports no new experimental data.

This study observed that PAD type III and trichohyalin are expressed earlier than their deiminated form during the first and second hair cycles in rat hair follicles, indicating a potential additional factor is involved in triggering deimination.

This review discusses multiple physiological roles of parathyroid hormone-related protein, such as cartilage mineralization and hair follicle regulation, and reports no new experimental results.

This study demonstrated that a newly developed polypeptide-protein hydrogel with vascularization and antibacterial properties promoted tissue regeneration and hair follicle formation in infected wound healing.

This consensus report provides detailed recommendations for using Polynucleotides Highly Purified Technology™ in aesthetic skin rejuvenation, highlighting its potential as a biostimulatory booster for face and body revitalization.

Hair differentiation starts earlier than thought, involving multiple type-II keratins.

This study found that oral collagen peptides increased expression of genes associated with epidermis development and the hair cycle in hairless mice, providing insights into their potential skin benefits.

This study found that the 11R-No. 10 peptide, delivered transdermally, significantly inhibited melanogenesis and produced a whitening effect in a UV-induced sun-tanning guinea pig model without cytotoxicity.

This study suggests that structural changes in the TRPV3 channel are linked to severe skin conditions like Olmsted syndrome, with differences observed between heat-activated and resting states.

This study suggests that bovine and fish-derived collagen peptides may help maintain or prolong the hair growth phase and balance hair follicle stem cell populations, potentially benefiting aging and hair loss conditions like androgenetic alopecia.

In this study, elevated mRNA levels for serine-rich ultra high sulfur proteins were observed during active hair growth phases in mice, particularly in the forming hair structures and upper skin layers.

This study suggests that MultiDomain Peptide hydrogels may support wound healing in diabetic mice by accelerating closure and promoting tissue regeneration, though they did not inhibit bacterial growth in infected wounds as expected.

This study suggests that APC collagen peptides may accelerate hair growth and promote overall hair health by enhancing cellular proliferation and activating specific signaling pathways in human and mouse models.

This study revealed that different coat patterns in cats and cheetahs are related to variations in the aminopeptidase Q gene and endothelin-3 expression, which affects pigment production.

This study found that the main structural proteins of tree frog toe pads, which aid in their adhesive properties, are alpha keratins that have evolutionary origins in early tetrapods.

This article reviews the composition and structure of mammalian hard keratins, focusing on the filamentous and nonfilamentous protein content, and reports no new experimental results.

This study found that keratin K80, structurally similar to hair keratins, is broadly expressed in various epithelial tissues and is involved in intermediate filament formation with multiple type I partners.

mHa2 and mHa3 keratins have different structures and roles in mouse hair and tongue tissues.

This study found that electrophoretic keratin typing of head hair can identify specific polypeptide patterns, suggesting potential applications in genetic and forensic investigations.

This study found that pepsin digestion was more effective than trypsin at identifying keratin-associated proteins in human hair shafts and confirmed that trypsin introduced a bias in the analysis of protein composition that pepsin can correct.

Oxidized trichocyte keratin has a helical dislocation in its structure.

This study found that hollow polydopamine nanoparticles enhanced the regenerative potency of the peptide RL-QN15, suggesting potential for improved therapeutic approaches in skin wound healing.

This study found that topical administration of the TGFβ mimetic peptide DPS-1 stimulated hair growth in mice by promoting HDP cell proliferation and enhancing hair follicle morphology.

This study found that in women with polycystic ovary syndrome, shorter CAG repeat lengths in the androgen receptor gene were associated with lower dihydrotestosterone and androstenedione levels, but a higher prevalence of acne and hirsutism.