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research Solid basal cell epithelioma (BCE) possibly originates from the outer root sheath of the hair follicle.

61 citations , August 1993 in “PubMed”

This study found that solid basal cell epitheliomas and the outer root sheath of human hair follicles display nearly identical cytokeratin profiles, suggesting a potential origin connection.

research VEGF165 modulates proliferation, adhesion, migration and differentiation of cultured human outer root sheath cells from central hair follicle epithelium through VEGFR-2 activation in vitro

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.

research A Novel Epithelial Keratin, hK6irs1, is Expressed Differentially in All Layers of the Inner Root Sheath, Including Specialized Huxley Cells (Flügelzellen) of the Human Hair Follicle

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.

research K6irs1, K6irs2, K6irs3, and K6irs4 Represent the Inner-Root-Sheath-Specific Type II Epithelial Keratins of the Human Hair Follicle1

130 citations , April 2003 in “Journal of Investigative Dermatology”

This study reports the cloning and expression details of two new human type II keratins, K6irs3 and K6irs4, in the hair follicle's inner root sheath, suggesting a distinct functional role related to hair structure.

Nestin as a Marker of Unipotent Epithelial Progenitor Cells Differentiating into Outer Root Sheath Keratinocytes in Embryonic and Adult Hair Follicles

research Nestin as a marker of unipotent epithelial progenitor cells differentiate into outer root sheath keratinocytes in embryonic and adult hair follicles

June 2022 in “Research Square (Research Square)”

This study revealed that nestin-expressing progenitor cells capable of becoming ORS keratinocytes are present during both hair follicle development and in adult hair follicles.

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community DHT Isn’t the Only Factor in Hair Loss and That Might Be the Key to a Real Cure

373 upvotes 6 months ago

Hair loss involves more than just DHT, with genetic factors like TRPS affecting hair follicles. Treatments such as Amplifica's AMP-601 and AMP-303 target stem cells for potential hair growth solutions.

community Prolactin the Cause of Hair Loss? ABS-201 the Cure?

29 upvotes 2 months ago

Prolactin may contribute to hair loss, but targeting its receptor won't cure androgenetic alopecia. ABS-201 could be a useful alternative or adjuvant therapy, similar to JAK inhibitors, but not more effective than HMI-115.

community Everything you ever wanted to know about Pelage Pharma's PP405: how it works and what to expect

126 upvotes 3 months ago

PP405 may encourage earlier hair growth and slightly increase visible hair count but does not reverse hair follicle miniaturization in male pattern baldness. It does not address damage to the dermal papilla or broken Wnt signaling.

community Quote from Pelage (PP-405) Spokesperson...

122 upvotes 11 months ago

Pelage is developing a topical hair follicle stem cell therapy, PP405, for non-scarring alopecias like androgenetic alopecia, with Phase III trials planned and a potential market launch by 2027. The treatment may not require continuous use after initial regrowth.

community Best science-backed supplements for androgenetic alopecia? Looking for real evidence

7 months ago

The conversation discusses treatments for androgenetic alopecia, focusing on evidence-based supplements to complement finasteride. Suggestions include oral minoxidil, saw palmetto, pumpkin seed oil, tocotrienols, and various other supplements, while emphasizing the importance of scientific backing and cautioning against saw palmetto if already using finasteride.

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