151 citations
,
November 2014 in “Annual Review of Animal Biosciences” This review discusses three decades of progress in feather development, regeneration, and evolution, with no new experimental results; it highlights feathers' potential as a model for morphogenesis studies.
68 citations
,
April 2014 in “Journal of Investigative Dermatology” This study identified a new S100 fused-type protein, scaffoldin, in reptiles and birds and suggests that SFTP-positive epithelia serve as scaffolds for the growth of various skin appendages, indicating a common evolutionary origin.
375 citations
,
June 2013 in “Biochimica et biophysica acta. Molecular cell research” This review examines the process of cornification as a mode of programmed cell death and outlines how keratinocytes activate anti-cell death mechanisms to maintain epidermal homeostasis, but reports no new results.
33 citations
,
October 2012 in “Journal of Morphology” This study identified the distribution of keratin-associated proteins during cornification in the epidermis of reptiles, revealing unique structural characteristics in sauropsid keratin proteins compared to other vertebrates.
99 citations
,
July 2012 in “PLoS Genetics” This study identified a 69 bp deletion in the KRT75 gene as the cause of the frizzle feather trait in chickens, affecting feather curling.
17 citations
,
June 2012 in “Journal of experimental zoology. Part B, Molecular and developmental evolution” This review explores theories on the evolution of hair from synapsid scales and glands, proposing mechanisms supported by comparative studies, but reports no new experimental findings.
20 citations
,
December 2010 in “Journal of Morphology” In this study, researchers found that alpha-keratin homologs similar to those in mammalian hair are present in the claws of the lizard Anolis carolinensis, suggesting a structural role during claw formation.
517 citations
,
February 2010 in “Materials” This review discusses the history and development of keratin biomaterials for biomedical uses, highlighting their biological activity and biocompatibility, and provides no new research findings.
31 citations
,
May 2009 in “Bijdragen tot de Dierkunde” This study suggests that reptilian claws grow differently from mammalian claws, with continuous epidermal growth rather than a proximal matrix zone for cell proliferation.
86 citations
,
April 2009 in “Journal of anatomy” This paper reviews the evolution of skin appendages and keratin-associated proteins among amniotes, proposing a model for their genetic divergence without new experimental results.
158 citations
,
January 2009 in “The International Journal of Developmental Biology” This perspective highlights the potential of reptile integument as an experimental model to understand the evolution of amniote skin structures, but reports no new research findings.
115 citations
,
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.
119 citations
,
August 2008 in “BMC Evolutionary Biology” This study found that while the KRTAP gene family is unique to mammals, humans have a similar number of these hair gene types as other primates despite having less body hair.
26 citations
,
August 2007 in “Annals of Anatomy - Anatomischer Anzeiger” Feathers become harder as they develop due to a change in keratin type.
117 citations
,
November 2006 in “Experimental Dermatology” This review explores the biology of wool follicles and suggests their potential use as research models in modern biology, but it reports no new findings.
226 citations
,
January 2006 in “International review of cytology” Keratin-associated proteins are crucial for hair strength and structure.
82 citations
,
January 2006 in “International review of cytology” Vertebrate skin evolved to be more specialized and complex, especially in land animals.
47 citations
,
July 2005 in “European Journal of Cell Biology” Terrestrial vertebrates have balanced keratin gene clusters, unlike teleost fish.
276 citations
,
January 2005 in “International review of cytology” More research is needed to understand how hair keratins work and their role in hair disorders.
20 citations
,
September 2004 in “Journal of Anatomy” This study suggests that the structure and function of the inner root sheath in mammalian hair may have evolved from simpler forms seen in monotremes, aiding in hair exit without damaging the epidermis.
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.
199 citations
,
January 2004 in “The International Journal of Developmental Biology” This review discusses advances in understanding hair and hair follicle structure, gene expression, and molecular signals in hair formation, without reporting new clinical findings.
23 citations
,
April 2003 in “Journal of Structural Biology” Keratin structure changes during keratinization, but the exact model remains uncertain.
425 citations
,
August 2002 in “BioEssays” This review discusses the structure and assembly of the cornified cell envelope in stratified squamous epithelial cells and various disorders leading to barrier defects, but reports no new findings.
686 citations
,
February 2002 in “Current Opinion in Cell Biology” Keratin filaments are crucial for cell structure and protection, with ongoing discoveries about their genes and functions.
45 citations
,
January 1986