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Glossary Dermal Papillae

small skin projections crucial for hair growth and nutrient supply

Dermal papillae are small, nipple-like extensions of the dermis (the inner layer of the skin) that project into the epidermis (the outer layer of the skin). In the context of hair, they are located at the base of hair follicles and play a crucial role in hair growth by supplying nutrients and signaling molecules to the hair matrix cells, which are responsible for producing hair.

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Research

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research Squarticles as a Lipid Nanocarrier for Delivering Diphencyprone and Minoxidil to Hair Follicles and Human Dermal Papilla Cells

62 citations , December 2013 in “Aaps Journal”

This research reported that squarticles, nanoparticles made from sebum-derived lipids, enhanced the follicular delivery and skin accumulation of diphencyprone and minoxidil, indicating effective drug deposition with reduced systemic absorption in alopecia treatment.

research Hair matrix germinative epidermal cells confer follicle-inducing capabilities on dermal sheath and high passage papilla cells

61 citations , October 1996 in “Development”

This study found that combining adult germinative epidermal cells with non-inductive dermal cells can stimulate hair follicle neogenesis, effectively altering the cells' status to enhance induction.

TGF-β2 Is Specifically Expressed in Human Dermal Papilla Cells and Modulates Hair Folliculogenesis

research TGF‐β₂ is specifically expressed in human dermal papilla cells and modulates hair folliculogenesis

43 citations , March 2009 in “Journal of Cellular and Molecular Medicine”

This study suggests that TGF-β 2 plays a critical role in hair follicle morphogenesis and may enhance the effectiveness of future cell therapies for hair regrowth using expanded dermal papilla cells.

research Maintaining Hair Inductivity in Human Dermal Papilla Cells: A Review of Effective Methods

35 citations , January 2020 in “Skin Pharmacology and Physiology”

This review discusses the biology and signaling mechanisms of dermal papilla cells in hair follicle growth and reports no new clinical results; the authors emphasize the importance of optimizing culture conditions for hair restoration.

Identification of a New Plant Extract for Androgenic Alopecia Treatment Using a Non-Radioactive Human Hair Dermal Papilla Cell-Based Assay

research Identification of a new plant extract for androgenic alopecia treatment using a non-radioactive human hair dermal papilla cell-based assay

17 citations , December 2015 in “BMC Complementary and Alternative Medicine”

This study found that Avicennia marina extract significantly inhibited 5α-reductase type 1 activity in human hair dermal papilla cells, suggesting its potential use for treating androgenic alopecia.

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Community Join

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community Hair follicle dermal papilla exosomes

2 upvotes 1 year ago

The conversation discusses using hair follicle dermal papilla exosomes for hair loss treatment. It inquires about purchasing options for this treatment.

community HairClone (UK) finally begins offering its Dermal Papilla Cell Hair Multiplication procedure to humans. In Guatemala.

149 upvotes 6 months ago

HairClone is offering a Dermal Papilla Cell Hair Multiplication procedure in Guatemala, raising questions about its effectiveness and regulatory reasons for the location. Users express skepticism and curiosity about the treatment's success and potential costs.

community New Peer-Reviewed Publication Further Validates RepliCel's Use of Dermal Sheath Cup Cells to Treat Pattern Baldness - Paper entitled "Hair Follicle Dermal Stem Cells Regenerate the Dermal Sheath, Repopulate the Dermal Papilla, and Modulate Hair Type" published journal Developmental Cell

13 upvotes 11 years ago

A new treatment using dermal sheath cup cells may regrow hair and could require repeat treatments every 8 years. Users discuss ongoing trials and plan to use finasteride and minoxidil until the treatment is available.

community [Nov 2019] The peptide AC 2 isolated from Bacillus-treated Trapa japonica fruit extract rescues DHT (dihydrotestosterone)-treated human dermal papilla cells and mediates mTORC1 signaling for autophagy and apoptosis suppression

23 upvotes 6 years ago

A peptide from Japanese water chestnut fruit may help with hair loss by suppressing DHT's effect on hair follicle cell death, potentially serving as a finasteride alternative. The treatment's effectiveness and safety in humans remain uncertain.

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.

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Learn

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learn Platelet-Rich Plasma

What is Platelet-Derived Growth Factor Beta Polypeptide, and how does it help stimulate new hair growth? PDGF-BB is a growth factor that signals to dermal papilla cells and promotes blood-vessel formation; mouse studies report it can push follicles into the growth phase, and human evidence comes only indirectly from PRP trials. No PDGF product is approved for hair restoration and there is no published human trial of PDGF-BB on its own.

learn SCUBE3

a signaling molecule from dermal papilla cells being actively researched

How does SCUBE3 work on hair follicles compared to treatments like minoxidil or finasteride? Laboratory research in mice reports that SCUBE3, a protein released by dermal papilla cells, signals dormant follicles to grow through the TGF-β pathway downstream of Hedgehog; minoxidil and finasteride instead work on blood flow to the follicle and on DHT, and unlike SCUBE3 they have decades of human trial data behind them. SCUBE3 has not been tested in human clinical trials and is not available as a medicine.

learn Centella

Not eating well lately and your hair’s falling? A centella-based supplement might give your roots the boost they’re begging for. There is no published human trial showing that an oral Centella asiatica (gotu kola) supplement stops hair shedding caused by poor nutrition; the evidence is laboratory work on dermal papilla cells, inflammation and collagen, and community reports mention centella only in topical products.