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learn Osteopontin

Signalling protein studied in hair-growth research

What role does Osteopontin play in protecting and repairing hair follicles? In mouse studies osteopontin switched on hair stem cells, but an osteopontin-derived peptide suppressed growth in human scalp tissue. Whether it protects human follicles is unknown.
Is Osteopontin more effective in topical treatments or oral supplements for hair loss? Neither route has been tested: there is no published human trial of topical or oral osteopontin for hair loss. The evidence is preclinical, and it points both ways — injected osteopontin promoted hair growth in mice, while an osteopontin-derived peptide suppressed growth in human scalp tissue and its authors proposed it for unwanted hair.
What does osteopontin do in skin healing and inflammation? Osteopontin takes part in wound repair in mouse skin; its role in human scalp healing and inflammation has not been studied.
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Research

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research 1371 FGF7-dependent inhibition of human hair growth byan osteopontin-derived peptide: A novel solution for hirsutism and hypertrichosis?

April 2018 in “Journal of Investigative Dermatology”

This study identified the osteopontin-derived peptide, FOL-005, as a potential inhibitor of unwanted human hair growth by promoting catagen development without reducing stem cell numbers or showing toxicity.

research An osteopontin‐derived peptide inhibits human hair growth at least in part by decreasing fibroblast growth factor‐7 production in outer root sheath keratinocytes

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.

research Identification of an osteopontin-derived peptide that binds neuropilin-1 and activates vascular repair responses and angiogenesis

5 citations , June 2024 in “Pharmacological Research”

This study identified neuropilin-1 as the receptor for FOL-026 and showed that it stimulates angiogenesis and cell growth, suggesting potential for vascular repair and enhanced angiogenesis therapies.

research Identification of an osteopontin-derived peptide that binds neuropilin-1 and activates vascular cells

September 2023 in “bioRxiv (Cold Spring Harbor Laboratory)”

In this study, FOL-026, a peptide based on osteopontin, was shown to promote angiogenesis and stimulate vascular cell proliferation and migration through neuropilin-1, similar to VEGF, suggesting potential therapeutic applications in vascular repair and angiogenesis-related conditions.

research 682 Identification of novel potential therapeutic targets by comparative transcriptomic profiling of physiological and pathological skin wounds ex vivo

July 2024 in “Journal of Investigative Dermatology”

Combining certain treatments, including FOL005, may improve healing of difficult wounds.

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Community Join

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community Peptides that Stop Hair Loss? | In-depth Literature Review Video

76 upvotes 2 years ago

Peptides like TB500, KPV, GHK-CU, and BPC-157 are overhyped for hair growth with limited proven effectiveness in humans. Combining peptides with delivery methods like iontophoresis and sonophoresis shows promise, but many claims remain unproven.

community Forgotten Hair Loss Peptide by L'Oreal: KPV

5 upvotes 2 years ago

KPV, a peptide patented by L'Oreal, may promote hair growth and reduce hair loss by extending the anagen phase and has anti-inflammatory properties. It could be combined with treatments like minoxidil for enhanced effects.

community IGF-1 and Peptides? Miracle molecule waiting to be found

10 upvotes 1 year ago

The conversation discusses potential hair loss treatments focusing on stimulating IGF-1 at the follicle level using growth-factor cocktails and engineered peptides, such as Acetyl Tetrapeptide-3, Copper Tripeptide-1, Oligopeptide-20, Thymosin-β4, and Palmitoyl Tetrapeptide-7. It suggests that device-assisted delivery methods like microneedling may enhance effectiveness.

community Soundwaves & Electricity Grows Hair? | Peptide Delivery Model.

2 upvotes 2 years ago

Iontophoresis and sonophoresis can enhance drug delivery into the scalp. Combining these methods may improve the effectiveness of topical treatments like dutasteride and certain peptides.

community He used Dutasteride for 20 years. Interview

113 upvotes 1 year ago

Dutasteride has been used for 20 years with some hair thickness improvement but no dramatic regrowth. The user also experimented with minoxidil, tretinoin, and peptides like BPC 157 for potential benefits in hair density and quality.

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