37 citations
,
July 1999 in “The EMBO Journal” Overexpression of certain genes can shorten hair by disrupting the hair-growth cycle.
36 citations
,
January 1994 in “Cell and Tissue Research” 35 citations
,
October 2013 in “Journal of Dermatological Science” This study observed that VEGF165 increases proliferation and migration but alters adhesion properties of cultured human hair follicle cells, indicating a potential role for VEGF/VEGFR-2 in hair follicle regulation beyond angiogenesis.
35 citations
,
August 1987 in “In Vitro Cellular & Developmental Biology - Plant” The new device improves human hair follicle cell growth and differentiation.
34 citations
,
March 2007 in “Biochemical and Biophysical Research Communications” This study suggests that decreased expression of thioredoxin reductase 1 in hair follicle cells may contribute to glucocorticoid resistance in some alopecia areata patients by affecting the intracellular redox system.
32 citations
,
December 1969 in “The Lancet” This study found a significant shift to the telogen phase in the hair growth of children with classical marasmus compared to normal children, suggesting a connection to the chronicity of the condition.
31 citations
,
December 2010 in “Journal of the American Academy of Dermatology” This study reports that structural abnormalities in the inner root sheath of hair follicles may cause the hair shaft to be loosely attached in patients with loose anagen hair syndrome.
31 citations
,
December 1991 in “Annals of the New York Academy of Sciences” This study found that distinct keratin profiles enabled the evaluation of epithelial differentiation in human hair follicles, with mesenchymal cells playing a critical role in epidermoid differentiation of follicular cells.
28 citations
,
June 2007 in “Journal of Cutaneous Pathology” This study found that premature desquamation of the inner root sheath is a non-specific histologic feature in scarring alopecia and cannot be used alone to define central centrifugal cicatricial alopecia.
24 citations
,
November 1978 in “Biochemistry” This paper reports on the structural characteristics of α-type filaments in the inner root sheath cells of guinea pig hair follicles without presenting new clinical findings.
23 citations
,
June 2012 in “Molecular Biology Reports” This study found that human outer root sheath cells express VEGF receptor-2, and exogenous VEGF165 significantly stimulates their proliferation through activation of the ERK signaling pathway.
23 citations
,
February 2004 in “British Journal of Dermatology” Keratin in mouse hair follicles is complex and plays specific roles.
22 citations
,
August 2020 in “Molecules” This study found that applying AGN root extract containing decursin to mouse skin accelerated hair growth and altered inflammatory cytokine levels compared to a control.
22 citations
,
March 2017 in “Scientific reports” This study investigated the role of NLRP3 inflammasomes in alopecia areata and found that outer root sheath cells may contribute to inflammation by increasing IL-1β and HMGB1 secretion when stimulated with double-stranded RNA.
22 citations
,
June 2008 in “Experimental Dermatology” This study found that heparanase is primarily located in the inner root sheath of human hair follicles during the anagen phase, and inhibiting it in cultured hair follicles induces a catagen-like process.
22 citations
,
September 2000 in “Journal of Investigative Dermatology” This study found that mu-crystallin gene expression in mouse skin is highest during the anagen phase of hair development, suggesting its possible role in hair follicle growth.
22 citations
,
July 1990 in “Acta Dermato Venereologica” In this study, high concentrations of dihydrotestosterone and testosterone reduced the growth of human hair follicle cells in vitro, while high estradiol levels increased their growth.
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.
19 citations
,
September 2019 in “British Journal of Dermatology” This study found that a novel peptide, FOL-005, derived from osteopontin, significantly inhibited hair growth in human hair follicles both ex vivo and in vivo, suggesting potential as a treatment for unwanted hair growth.
18 citations
,
December 2020 in “Frontiers in cell and developmental biology” This study found that extracellular vesicles from low-passage dermal papilla cells may activate hair growth by delivering miR-140-5p, which downregulates BMP2 signaling, suggesting potential therapeutic targets for alopecia.
18 citations
,
March 2009 in “Experimental Dermatology” This study suggests that pilomatricoma can differentiate towards various hair follicle structures, including hair matrix, hair cortex, follicular infundibulum, outer root sheath, and hair bulge.
18 citations
,
June 1993 in “Archives of Dermatological Research” Human hair follicles can be used to create skin-like tissue for wound healing and drug testing.
17 citations
,
March 2012 in “Journal of biological chemistry/The Journal of biological chemistry” In this study, researchers found that overexpression of the hairless protein in Hr mutant mice disrupts inner root sheath formation by downregulating Dlx3 and associated keratins in hair follicle development.
16 citations
,
July 1994 in “Journal of Dermatological Science” This study found that minoxidil sulfate and pinacidil did not activate K channel currents in hair follicles, suggesting their effect on hair growth might occur through other mechanisms like increased blood flow.
15 citations
,
July 2004 in “Journal of morphology” This study analyzes the fine structure and protein distribution in monotreme hairs, finding similarities with other mammals and detailing unique immunocytochemical features in their inner root sheaths.
14 citations
,
January 2017 in “Pharmacological Reports” TP0427736 may help treat hair loss by blocking a specific protein and promoting hair growth.
14 citations
,
April 1995 in “Transplantation” This study suggests that human outer root sheath cells are suitable for skin replacement, as they can form a stratified epithelium similar to normal epidermis in organotypic cultures.
13 citations
,
September 2012 in “Cell & tissue research/Cell and tissue research” In this study, researchers found that the pCLCA2 protein is expressed in specific areas of pig skin, but its role in skin structure or function remains unclear.
13 citations
,
January 2002 in “Biochemical and biophysical research communications” This study observed that interferon β secreted by dermal papilla cells may negatively regulate the growth of outer root sheath cells in hair follicles.
12 citations
,
December 2023 in “Plant Communications” This study found that long-term exposure to high pH extends root hair elongation by altering actin filament arrangements and vesicle trafficking, but disrupting ADF8/11 function shortens root hairs by affecting these processes.