29 citations
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April 1997 in “Developmental Dynamics” This study found that topical trypsin application after hair removal in mice led to cell death at the follicular papilla, which delayed hair growth and pigmentation.
5 citations
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July 2019 in “Clinical and experimental dermatology” This study found that incorporating collagenase type I into a noncultured hair follicle cell suspension technique improved cell yield and enhanced repigmentation in patients with stable vitiligo compared to dermabrasion alone.
3 citations
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April 1997 in “Developmental Dynamics” In this study, topical trypsin treatment following depilation in a mouse model induced cell death at the follicular papilla, delaying hair growth and pigmentation.
2 citations
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December 2016 in “Experimental cell research” This study reveals that CSPG4-positive basal cell keratinocytes show distinct global gene expression from CSPG4-negative cells, despite similar colony-forming efficiency.
September 1989 in “PubMed” This study reported detailed three-dimensional ultrastructural observations of human hair and hair follicles using a modified preparation method, including morphological differences in hair bulb cell layers and surface projections on root sheath cells.
14 citations
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July 1983 in “Acta Dermato Venereologica” This study describes a method for serially cultivating adult human hair follicle keratinocytes using a specific growth substrate and cryogenic storage, enabling subculture and immunofluorescence studies.
13 citations
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December 1983 in “Canadian journal of zoology” This study found that mesenchymal cell processes from the dermal papilla contact epithelial hair matrix cells through gaps in the basal lamina during hair matrix cell differentiation in mouse vibrissa follicles.
5 citations
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July 1999 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” The researchers reported that applying proteolytic enzymes to mice skin negatively affected hair follicles, leading to degeneration and potential impairment of stem cells from the bulge area.
2 citations
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July 1999 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” In this study, proteolytic enzymes applied to mice skin caused severe degeneration in hair follicles, including detachment of stem cells from their niche, suggesting potential impairment of stem cell function.
July 2026 in “Asian Journal of Pharmaceutical Sciences” The researchers designed a Janus microneedle system for treating vitiligo, which targets the skin’s layers to regulate the immune response, promote melanocyte regeneration, and enhance pigment transfer, offering a new precise treatment approach for this condition.
December 2025 in “Rapid Communications in Mass Spectrometry” This study found that pepsin digestion was more effective than trypsin at identifying keratin-associated proteins in human hair shafts and confirmed that trypsin introduced a bias in the analysis of protein composition that pepsin can correct.
January 2023 in “Turk Dermatoloji Dergisi” In a single case study, researchers reported increased hair density using a trypsin-isolated cell suspension containing CD34 and CD200 positive cells for treating grade III androgenetic alopecia.
Researchers developed a method to identify and measure different animal hair fibers in textiles, successfully distinguishing materials like cashmere from cheaper fibers.
January 2006 in “Zhongguo bijiao yixue zazhi” This study demonstrated a simple and efficient method to isolate epithelial cells from rat vibrissa follicles, reducing labor and contamination risk while maintaining positive K19 staining.
July 2024 in “Journal of Investigative Dermatology” ATR12-351 ointment safely delivers LEKTI protein to the skin, reducing enzyme activity in Netherton syndrome.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” This study found that using trypsin digestion to extract keratinocytes from the hair follicle bulge results in a higher yield and faster growth of stem keratinocytes compared to the explant method.
March 2020 in “The Thai Journal of Veterinary Medicine” This case report describes the occurrence of juvenile diabetes mellitus with concurrent exocrine pancreatic insufficiency in a Thai Bangkaew dog, highlighting its successful management with insulin, pancreatic enzymes, and methylcobalamin.
April 2023 in “Journal of Investigative Dermatology” In this study, trypsin digestion was found to be a faster and more efficient method than the explant technique for extracting bulge-derived keratinocytes from adult scalp biopsies.
22 citations
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January 2017 in “Advanced Healthcare Materials” This study found that thermoresponsive hydrogels can maintain mechanical memory in fibroblasts, enhancing wound healing compared to traditional trypsinized methods.
2 citations
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November 1992 in “Journal of dermatology” This study found that cells isolated from human scalp hair follicles proliferated well in a specific culture medium and possessed keratins characteristic of hair-forming cells.
1 citations
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September 2001 in “PubMed” This study found that the serine protease inhibitor ONO-3403 significantly suppressed tumor growth in mice with induced squamous cell carcinoma without apparent side effects, suggesting its potential for cancer treatment.
January 2008 in “Zhongguo zuzhi gongcheng yanjiu yu linchuang kangfu” This study found that selecting human vaginal mucosa stem cells by adhesion to type Ⅳ collagen for 20 minutes and culturing them with feeder layer and epidermal total culture media was most effective in maintaining their characteristics.
44 citations
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August 1990 in “PubMed” This study provides evidence for K1 and K10 derivatives' presence in the inner root sheath and hair cuticle, suggesting that these hair follicle parts may follow familiar keratinization principles.
March 2008 in “The Knowledge Bank (The Ohio State University)” This study found that AR-007 degrades faster and has a stronger association with hsp70 than AR-014, suggesting it is less stable when bound to the androgen receptor.
19 citations
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March 2017 in “Scientific Reports” This study suggests that the protease HAT-L4 plays a significant role in maintaining epidermal barrier function to prevent body fluid loss, as its absence in mice led to increased fluid loss and higher mortality.
January 2019 in “Springer eBooks” The abstract reports that non-cultured cellular grafting has become a prevalent and cost-effective method for treating stable vitiligo, with safety and effectiveness confirmed by two decades of studies. It critiques strict legislative oversight, suggesting it might unnecessarily increase costs and limit patient access.
March 1998 in “Journal of dermatological science” Protease Nexin-1 is found in human hair growth cells and is affected by male hormones.
August 1993 in “Journal of Dermatological Science” Testosterone metabolism in balding scalp cells may not be the main cause of hair loss.
137 citations
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October 2009 in “The American journal of pathology” This study found that matriptase, a membrane serine protease, is crucial for maintaining multiple types of epithelial tissues in mice, with its absence leading to severe organ dysfunction and increased permeability.
106 citations
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April 2010 in “ACS Nano” This study found that about 80% of known fullerene-binding proteins rank in the top 10% of scorers for C60 docking sites, confirming the accuracy of the predictive model used.