January 2022 in “Stem cell biology and regenerative medicine” This review explores the complex interactions between hair follicle stem cells and surrounding structures that are essential for understanding hair regeneration, reporting no new experimental results.
30 citations
,
October 2021 in “Scientific Reports” This study found that human scalp hair follicles can internally operate a Cori cycle, synthesize glycogen in the presence of lactate, and modulate growth through glycogen phosphorylase activity.
29 citations
,
January 2021 in “Journal of Investigative Dermatology” This study demonstrates that dermal white adipose tissue regulates human hair growth and pigmentation through hepatocyte growth factor secretion, highlighting potential therapeutic targets for hair-related disorders.
6 citations
,
January 2021 in “Journal of the mechanics and physics of solids/Journal of the Mechanics and Physics of Solids” This study's simulations suggest that biomechanical factors, like follicle geometry and tissue stiffness, are likely significant in hair fiber protrusion, providing a framework for future experimental validation.
30 citations
,
April 2018 in “Experimental Dermatology” This review discusses the historical development and current challenges in in vitro hair follicle culture, highlighting a need for advanced models using cell lines and tissue engineering, and reports no new results.
30 citations
,
April 2017 in “European Journal of Cell Biology” This study observed that CIP/KIP proteins play a significant role in regulating cell cycle arrest and differentiation in human hair follicles, supporting hair growth and formation in the anagen phase.
40 citations
,
May 2016 in “Proceedings of the National Academy of Sciences of the United States of America” This study found that the mechanical stiffening of the human hair follicle along the first millimeter is linked to changes in the keratin network architecture and composition during keratinization.
130 citations
,
August 2015 in “Experimental Dermatology” This review provides a comprehensive guide to serum-free human hair follicle organ culture methods, highlighting research opportunities, standardization efforts, and potential applications without reporting new empirical findings.
479 citations
,
June 2014 in “Science” This review discusses the plasticity of epithelial stem cells in regenerative contexts and reports no new research findings; the authors highlight potential implications for regenerative medicine and cancer.
394 citations
,
October 2013 in “Nature” 92 citations
,
September 2013 in “Journal of Investigative Dermatology” This study found that peripheral clock genes, particularly BMAL1 and Period1, modulate human hair follicle cycling, suggesting their potential as therapeutic targets for affecting hair growth.
29 citations
,
January 2013 in “The journal of investigative dermatology/Journal of investigative dermatology” In this study, silencing P-cadherin in human scalp hair follicles reduced melanogenesis and associated protein expression, suggesting P-cadherin is crucial for normal hair pigmentation via GSK3β-mediated Wnt signaling.
305 citations
,
June 2012 in “Nature” This study reports that hair regeneration in live mice involves spatially regulated stem cell divisions and requires mesenchymal interactions, observed in real-time using a novel non-invasive imaging method.
61 citations
,
July 2011 in “PLOS ONE” This study provides the first direct evidence that spermidine can stimulate hair growth and modulate human epithelial stem cell biology in cultured human hair follicles.
64 citations
,
January 2010 in “The FASEB Journal” This study found that prolactin is a key regulator of keratin expression in human hair follicles, enhancing specific keratin types and influencing epithelial stem cell-associated keratins.
132 citations
,
September 2009 in “Experimental Dermatology” This study introduced a new classification system for distinguishing between anagen VI and early catagen stages in human hair follicle organ culture, using it to confirm eflornithine's ability to induce premature catagen.
1039 citations
,
February 2009 in “Nature Reviews Molecular Cell Biology” This review discusses the reuse of molecular mechanisms involved in embryonic skin development for maintaining adult epidermal homeostasis and reports no new results.
26 citations
,
October 2007 in “Experimental Dermatology” This study found that l-carnitine stimulated hair growth in vitro by promoting proliferation and reducing apoptosis in human scalp hair follicles, suggesting potential as a treatment for hair loss.
38 citations
,
December 2006 in “Journal of Investigative Dermatology” Keratin patterns in hair follicles help understand hair growth and potential hair and nail disorders.
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.
30 citations
,
September 2004 in “Experimental Dermatology” This study found that minoxidil did not significantly increase hair shaft elongation in ex vivo human hair follicle culture, questioning the suitability of this method for studying its hair-growth-promoting effects.
45 citations
,
June 2003 in “Journal of Investigative Dermatology Symposium Proceedings” This review discusses various in vitro and in vivo models for studying hair follicle function, noting their potential in developing new treatments for hair disorders but reports no new results.
29 citations
,
April 2003 in “Experimental dermatology” In this study, in vitro growth of human hair follicles did not alter hair keratin expression patterns, maintaining follicle integrity and proper keratinization similar to in vivo conditions.
86 citations
,
May 2002 in “Journal of Investigative Dermatology” This study characterized a new human keratin, hK6irs1, specifically found in the inner root sheath of hair follicles, which suggests its role in the structural integrity and guidance of growing hair shafts.
854 citations
,
February 2002 in “The journal of investigative dermatology/Journal of investigative dermatology” This review summarizes recent advances in understanding the molecular mechanisms of hair follicle formation and discusses potential future clinical applications for treating hair loss and skin tumors, but it reports no new clinical results.
949 citations
,
January 2001 in “Cell” This study demonstrated that multipotent stem cells in adult mice whisker follicles migrate to produce whisker growth, and that this process requires precise control of stem cell trafficking.
81 citations
,
February 1997 in “Journal of Investigative Dermatology” This study suggests that minoxidil activates PGHS-1, which may explain its hair growth-stimulating effects and could aid in designing more potent hair growth-promoting drugs.
114 citations
,
October 1996 in “Dermatologic clinics” This chapter reviews laboratory models used for studying alopecia therapies but provides no new experimental findings.
91 citations
,
March 1996 in “Archives of Dermatological Research” This study concluded that cytokines and growth factors significantly regulate hair growth in vitro, with some completely inhibiting growth, such as EGF and TNFα.
71 citations
,
June 1993 in “Journal of Investigative Dermatology” 385 citations
,
November 1990 in “Journal of Cell Science” This study successfully grew and maintained human hair follicles in vitro, noting that TGF-β1 negatively affects growth, while EGF replicates hair-removal effects seen in animals.