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Glossary SCUBE3

SCUBE3 (Signal Peptide, CUB Domain, EGF-like 3) is a protein that plays a role in various biological processes, including cell signaling and tissue development. In the context of hair biology, SCUBE3 has been implicated in the regulation of hair follicle development and cycling, influencing hair growth and regeneration. Its relevance to hair loss lies in its potential involvement in the mechanisms that govern hair follicle stem cell activity and the overall health of hair follicles, making it a subject of interest in research on hair loss treatments and therapies. Key distinguishing characteristics of SCUBE3 include its structural domains, which facilitate interactions with other proteins and signaling pathways critical for hair follicle function.

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learn SCUBE3

a signaling molecule from dermal papilla cells being actively researched

What is SCUBE3 and why is it being studied as a potential breakthrough for hair regrowth? SCUBE3 is a signaling protein being studied for its potential to promote hair regrowth.
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.
Is SCUBE3 available in topical or injectable form, and how is it usually applied in studies? SCUBE3 is not available as a topical or injectable treatment and is not an approved medicine. In the published research it was delivered by microinjecting the recombinant protein into mouse skin and into cultured or grafted human follicles; there are no human clinical trials.
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Research

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research Expression of the Scube3 epidermal growth factor-related gene during early embryonic development in the mouse

17 citations , December 2006 in “Gene Expression Patterns”

This study reports that the mouse Scube3 gene is expressed in various tissues during embryonic development, including the neural tube, limb buds, developing tooth, hair follicle, and skeletal regions.

research Characterization of a mouse Scube3 reporter line

7 citations , November 2010 in “Genesis”

Mouse Scube3 affects teeth, tongue, vibrissae, and eye development, but not facial structure or limb growth.

Ageratum Houstonianum Extract and Agerarin Promote Hair Growth via MAPK/AP-1 Axis-Dependent Upregulation of SCUBE3 in Human Dermal Papilla Cells

research Ageratum houstonianum Extract and Agerarin Promote Hair Growth via MAPK/AP-1 Axis-Dependent Upregulation of SCUBE3 in Human Dermal Papilla Cells

April 2026 in “International Journal of Molecular Sciences”

In this study, Ageratum houstonianum ethanolic extract and its active component agerarin were found to promote hair growth and follicle elongation by increasing SCUBE3 expression via activation of MAPK–AP-1 signaling in human dermal papilla cells, suggesting potential therapeutic value for treating hair loss.

research Signal Peptide-CUB-EGF-like Domain-Containing Protein 3 (SCUBE3): From Molecule to Therapy

January 2026 in “Therapeutics”

This study found that SCUBE3 protein is upregulated in various cancers, promoting tumor growth and poor outcomes, while suppressing growth in renal cell carcinoma, and may serve as a diagnostic marker and potential therapeutic target for several diseases due to its secreted nature.

research Hedgehog signaling reprograms hair follicle niche fibroblasts to a hyper-activated state

25 citations , June 2022 in “Developmental cell”

In this study, Hedgehog signaling in dermal papilla fibroblasts was found to accelerate hair growth and induce follicle multiplication in mice via the SCUBE3/TGF-β pathway, with some effects observed in human scalp hair follicles.

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community What are we thinking about this SCUBE3 boys

in Product 7 upvotes 11 months ago

SCUBE3 is a promising new molecule that can restart hair growth by reawakening dormant hair follicles. Users express skepticism about its availability timeline, with some hoping for release by 2026.

community SCUBE 3 (the last hair bender)

2 upvotes 1 year ago

SCUBE3 and Amplifica's progress in hair loss treatment is being discussed, with inquiries about their current status and clinical trials. No specific updates or new information are provided in the conversation.

community SUBE3 for sale in the gray market?

5 upvotes 1 year ago

SCUBE3 is available online but poses risks like tumor promotion and high costs. Users advise against using it due to health concerns and inefficacy as a standalone treatment.

community When Scube3 even start trial 1?

in Research/Science 12 upvotes 2 years ago

Scube3 trials have not started yet. Treatments discussed include Minoxidil, finasteride, and RU58841.

community Expectations control for SCUBE3

20 upvotes 2 years ago

SCUBE3, a protein linked to hair growth in moles, was discovered over 25 years ago and is being developed by Amplifica for potential hair loss treatment. Concerns exist about SCUBE3's association with cancer, as it is a protein that promotes cell growth, which could potentially trigger cancer development if used for hair growth therapy.

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