67 citations
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August 2005 in “Journal of Investigative Dermatology Symposium Proceedings” This study found that in vitro, beard dermal papilla cells stimulated keratinocyte proliferation via androgen-dependent growth factors, while androgenetic alopecia cells released TGF-β1, inhibiting keratinocyte growth.
27 citations
,
August 2005 in “The journal of investigative dermatology/Journal of investigative dermatology” This study identified 12 new genes associated with the hair follicle and various stages of the hair cycle in mice, which could lead to novel targets for hair growth or depilation therapies.
56 citations
,
July 2005 in “Experimental Dermatology” This study demonstrated that hair follicle-derived cells can induce hair follicle formation in an in vitro skin organ culture system using human retroauricular skin specimens.
54 citations
,
June 2003 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” This speculative review discusses hair cycle-dependent fibroblast dynamics and possible impacts on human hair growth, synthesizing current literature without presenting new clinical findings.
78 citations
,
June 2003 in “Journal of Investigative Dermatology Symposium Proceedings” TGF-β1 from dermal papilla cells suppresses hair growth, and targeting it may help treat androgenetic alopecia.
520 citations
,
February 2001 in “Journal of Clinical Investigation” This study found that VEGF significantly enhances perifollicular vascularization during the hair growth phase, accelerating hair regrowth and increasing follicle and hair size, while its inhibition retards hair growth.
73 citations
,
November 2000 in “Proceedings of the National Academy of Sciences of the United States of America” This study demonstrated that anagen can be induced in Stat3-disrupted mice, suggesting that both Stat3-dependent and independent pathways, possibly involving PKC, mediate hair cycle progression with required PI3K activation.
131 citations
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August 2000 in “International Journal of Dermatology” Inflammation may be linked to hair loss, and targeting specific enzymes could help treat it.
30 citations
,
December 1999 in “Journal of Investigative Dermatology Symposium Proceedings” This study found that in vitro treatments with 5alpha-reductase inhibitors and androgen receptor antagonists strongly stimulate VEGF expression in dermal papilla cells.
27 citations
,
September 1999 in “Journal of Investigative Dermatology” This study found that protease nexin-1 mRNA is expressed in human dermal papilla cells and is downregulated by dihydrotestosterone in balding scalp, suggesting a role in male-pattern baldness progression.
1113 citations
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August 1999 in “The New England Journal of Medicine” This article discusses the biologic and psychosocial significance of hair, the current limitations in hair growth drugs, and anticipates future therapies based on advancing hair follicle research.
227 citations
,
January 1998 in “Journal of Endocrinology” This study found that dermal papilla cells from balding scalp hair follicles have significantly higher levels of androgen receptors than those from non-balding follicles, supporting their in vivo androgen response.
36 citations
,
September 1996 in “PubMed” This study found that dermal papilla and dermal sheath cells from human scalp tissue differ from interstitial dermal fibroblasts in morphology and produce varying levels of TGF-beta 2.
91 citations
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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.
37 citations
,
December 1995 in “Journal of Cell Science” This study found that nexin 1 mRNA, a potent protease inhibitor, is prevalent in rat follicular papilla cells and may play a role in regulating hair follicular growth.
219 citations
,
July 1995 in “PubMed” This study found that recombinant keratinocyte growth factor (rKGF) stimulated hair growth and provided a protective effect against alopecia in murine models, suggesting its role in hair follicle development and regeneration.
30 citations
,
August 1993 in “PubMed” This study found that IL-1 alpha inhibits the growth of cultured human hair follicles and hair fibers, suggesting a potential role in inflammatory hair loss conditions like alopecia areata.
34 citations
,
July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” This study suggests that androgens influence hair follicle behavior via the dermal papilla, using evidence from human and red deer cells with differing androgen responses as models.