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research Novel in vitro culture condition improves the stemness of human dermal stem/progenitor cells

18 citations , November 2013 in “Molecules and Cells”

This study found that a novel 3D in vitro culture condition improved stemness markers and proliferation potential in human dermal stem/progenitor cells compared to traditional 2D methods.

research Enrichment and characterization of human dermal stem/progenitor cells using collagen type IV

11 citations , June 2012 in “Journal of Dermatological Science”

This article reviews how aging affects skin and stem cells, but it contains no new research findings.

research Enrichment and Characterization of Human Dermal Stem/Progenitor Cells by Intracellular Granularity

10 citations , January 2013 in “Stem Cells and Development”

This study suggests that dermal stem/progenitor cells can be enriched by intracellular granularity and display high proliferation and differentiation potential in vitro, distinguishing them from other fibroblasts and progenitors.

research Hair growth-promoting effect of human dermal stem/progenitor cell-derived conditioned medium

9 citations , August 2015 in “Tissue Engineering and Regenerative Medicine”

In this study, human dermal stem/progenitor cell-derived conditioned medium was found to promote hair regrowth in mice, possibly through effects on the Wnt/β-catenin pathway.

research Comparative analysis of stemness between dermal papilla cells and human dermalstem/progenitor cells

April 2025 in “Cellular and Molecular Biology”

This study found that human dermal stem/progenitor cells demonstrated greater proliferation and differentiation potential than hair follicle dermal papilla cells, which showed increased expression of hair regeneration markers.

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community PP405 Won’t Work: Follicle Is Miniaturized, Fibrosed, And Missing Key Support Cells

7 months ago

PP405 is ineffective for miniaturized, fibrosed hair follicles in androgenetic alopecia. AMP303 may activate hair follicle stem cells, but minoxidil and finasteride are still the main treatments.

community New Hair Loss Cure: AMP-303 Is Back. It’s what PP405 should have been.

7 upvotes 5 months ago

AMP-303 and AMP-601 are new hair loss treatments targeting dermal papilla cells, with AMP-303 showing early efficacy in transitioning vellus hairs to terminal hairs after one injection. Further clinical trials are planned, and these treatments are seen as promising due to their biologic approach and less frequent application compared to daily treatments.

community My Theory Of Androgenic Alopecia

16 upvotes 9 months ago

Hair loss is linked to cellular physiology and the IGF-1 to TGF-B1 ratio, not just androgen sensitivity. The theory lacks evidence, while finasteride and minoxidil are effective treatments.

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

126 upvotes 2 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 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.

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