26 citations
,
January 2007 in “Organogenesis” This review outlines the evolution of hair follicle engineering and its foundational discoveries, but reports no new experimental results.
201 citations
,
August 2006 in “Cell and Tissue Research” 1549 citations
,
March 2006 in “Science” This review discusses the stem cell niche concept in mammalian systems and reports no new clinical results, highlighting recent progress and identifying important unanswered questions.
375 citations
,
February 2006 in “Journal of Cell Science” This article reviews the stages and regulation of the hair cycle, highlighting molecular regulators involved, but it does not present new research findings.
92 citations
,
December 2005 in “The Journal of clinical investigation/The journal of clinical investigation” This study reports that human hair follicle stem cells express different surface markers than mouse stem cells, facilitating their isolation and potentially aiding in the development of cell-based skin treatments.
1279 citations
,
November 2005 in “Nature Medicine” 
479 citations
,
January 2005 in “BioEssays” This review introduces the morphological and molecular principles of hair follicle development but reports no new experimental results, focusing on recent insights and forming a working hypothesis.
90 citations
,
August 2004 in “Physiological Genomics” This study found that coculturing human hair follicle keratinocyte stem cells with dermal papilla cells increased expression of the hair-specific keratin 6hf gene, which requires β-catenin/lef-1 signaling for hair differentiation.
98 citations
,
December 2003 in “The FASEB Journal” In this study, thymosin beta4 was found to stimulate hair growth in normal rats and mice by affecting key processes in the hair follicle cycle, such as stem cell migration and extracellular matrix remodeling.
250 citations
,
November 2003 in “The Journal of Cell Biology” This study found that BMP receptor IA is crucial for hair progenitor cell differentiation in mice, and its sequential inhibition and activation are necessary to generate a functioning hair shaft.
387 citations
,
November 2003 in “Journal of Investigative Dermatology” The K15 promoter effectively targets stem cells in the hair follicle bulge.
352 citations
,
August 2003 in “Proceedings of the National Academy of Sciences” In this study, nestin-expressing cells in the hair follicle bulge, marked by GFP in transgenic mice, were identified as progenitors of the hair follicle outer-root sheath.
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.
1010 citations
,
August 2000 in “Cell” In this study, researchers found that hair follicle stem cells in mice can generate both hair follicle and epidermis cells, highlighting their potential bipotency.
990 citations
,
October 1999 in “Development” This study found that LEF1/TCF3 is necessary but not sufficient for TOPGAL activation in hair follicle development, indicating complex regulation in the skin.
271 citations
,
March 1999 in “Developmental biology” This study reveals that overexpression of Wnt3 in transgenic mouse skin leads to a short-hair phenotype and cyclical balding due to structural defects in hair shafts, highlighting a role for WNT signaling in hair growth regulation.
441 citations
,
May 1996 in “Journal of Cell Science” This study found that keratin 19 may be a marker for skin stem cells, helping to characterize these cells in different conditions and potentially explaining variations in healing rates between children and adults.
156 citations
,
January 1989 in “Genes & Development” This study found that keratin K14 expression occurs early in epidermal cell differentiation, while a hair-specific keratin is expressed later in hair matrix cells, suggesting developmental divergence between the two cell types.
