Beauty biology map

Hair follicle cycling

Hair cycle through (growth), catagen (regression) and (rest). Wnt/beta-catenin signalling and sustain , while androgen signalling through the androgen and drives miniaturisation in pattern hair loss.

100%
Hair follicle cyclingARSRD5A2CTNNB1FGF7VEGFASULT1A1KRT85Signalling by WNTSignalling by FGFRNuclear receptor transcri…Potassium channelsHair follicle cyclingDermal papilla signallingKeratin synthesis

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IngredientMoleculeTargetGenePathwayProcessOutcome
Text alternative for this network
  • Hair follicle cycling associated with AR — high confidence
  • Hair follicle cycling associated with SRD5A2 — high confidence
  • Hair follicle cycling associated with CTNNB1 — high confidence
  • Hair follicle cycling associated with FGF7 — medium confidence
  • Hair follicle cycling associated with VEGFA — medium confidence
  • Hair follicle cycling associated with SULT1A1 — medium confidence
  • Hair follicle cycling associated with KRT85 — medium confidence
  • AR participates in Signalling by WNT — high confidence
  • SRD5A2 participates in Signalling by WNT — high confidence
  • CTNNB1 participates in Signalling by WNT — high confidence
  • FGF7 participates in Signalling by WNT — medium confidence
  • VEGFA participates in Signalling by WNT — medium confidence
  • SULT1A1 participates in Signalling by WNT — medium confidence
  • KRT85 participates in Signalling by WNT — medium confidence
  • AR participates in Signalling by FGFR — medium confidence
  • SRD5A2 participates in Signalling by FGFR — medium confidence
  • CTNNB1 participates in Signalling by FGFR — medium confidence
  • FGF7 participates in Signalling by FGFR — medium confidence
  • VEGFA participates in Signalling by FGFR — medium confidence
  • SULT1A1 participates in Signalling by FGFR — medium confidence
  • KRT85 participates in Signalling by FGFR — medium confidence
  • AR participates in Nuclear receptor transcription pathway — high confidence
  • SRD5A2 participates in Nuclear receptor transcription pathway — high confidence
  • CTNNB1 participates in Nuclear receptor transcription pathway — high confidence
  • FGF7 participates in Nuclear receptor transcription pathway — medium confidence
  • VEGFA participates in Nuclear receptor transcription pathway — medium confidence
  • SULT1A1 participates in Nuclear receptor transcription pathway — medium confidence
  • KRT85 participates in Nuclear receptor transcription pathway — medium confidence
  • AR participates in Potassium channels — medium confidence
  • SRD5A2 participates in Potassium channels — medium confidence
  • CTNNB1 participates in Potassium channels — medium confidence
  • FGF7 participates in Potassium channels — medium confidence
  • VEGFA participates in Potassium channels — medium confidence
  • SULT1A1 participates in Potassium channels — medium confidence
  • KRT85 participates in Potassium channels — medium confidence
  • Signalling by WNT associated with Hair follicle cycling — high confidence
  • Signalling by FGFR associated with Hair follicle cycling — medium confidence
  • Nuclear receptor transcription pathway associated with Hair follicle cycling — high confidence
  • Potassium channels associated with Hair follicle cycling — medium confidence
  • Signalling by WNT associated with Dermal papilla signalling — high confidence
  • Signalling by FGFR associated with Dermal papilla signalling — medium confidence
  • Nuclear receptor transcription pathway associated with Dermal papilla signalling — high confidence
  • Potassium channels associated with Dermal papilla signalling — medium confidence
  • Signalling by WNT associated with Keratin synthesis — medium confidence
  • Signalling by FGFR associated with Keratin synthesis — medium confidence
  • Nuclear receptor transcription pathway associated with Keratin synthesis — medium confidence
  • Potassium channels associated with Keratin synthesis — medium confidence

Genes & proteins

  • ARhigh confidence

    Androgen receptor

  • SRD5A2high confidence

    Steroid 5 alpha-reductase 2

  • CTNNB1high confidence

    Catenin beta 1

  • FGF7medium confidence

    Fibroblast growth factor 7 (KGF)

  • VEGFAmedium confidence

    Vascular endothelial growth factor A

  • SULT1A1medium confidence

    Sulfotransferase family 1A member 1

  • KRT85medium confidence

    Keratin 85

Pathways

  • Signalling by WNT

    high confidence

    Beta-catenin dependent maintenance of .

    Reactome R-HSA-195721

  • Signalling by FGFR

    medium confidence

    growth-factor signalling.

    Reactome R-HSA-190236

  • Nuclear receptor transcription pathway

    high confidence

    Androgen mediated in cells.

    Reactome R-HSA-383280

  • Potassium channels

    medium confidence

    ATP-sensitive potassium channels in tissue.

    Reactome R-HSA-1296071

Ingredients studied here

Processes

  • cycling —
  • signalling —
  • synthesis —

Research on this topic

Meta-analysisJournal of the American Academy of Dermatology · 2020

Topical minoxidil in androgenetic alopecia: a systematic review of randomised trials

Pooled analysis reported increased hair count versus placebo across multiple randomised trials.

Limitations — Regulated medicine; outcomes measured over 16-48 weeks; discontinuation reverses gains.

ReviewSkin Appendage Disorders · 2017

A review of the use of biotin for hair loss

Found supporting evidence only in cases of underlying biotin deficiency; no evidence of benefit in non-deficient individuals.

Limitations — Review of a small literature; few controlled trials exist.

ReviewSkin Appendage Disorders (review) · 2017

Biotin supplementation for hair and nail complaints: a critical appraisal

Found that reported benefits cluster in patients with an underlying biotin deficiency, with no good evidence in unaffected people.

Limitations — Review of low-quality case series; identifier not verified during curation.

HumanJournal of the American Academy of Dermatology · 2014n = 71

Minoxidil sulfate and follicular sulfotransferase activity as a response predictor

Reported association between follicular SULT1A1 activity and clinical response to topical minoxidil.

Limitations — Observational association; identifier not verified during curation.

In-vitroSkin Pharmacology and Physiology · 2014

Topical caffeine and adenosine receptor signalling in the hair follicle

Reported prolonged anagen-phase markers in cultured human hair follicles exposed to caffeine.

Limitations — Organ-culture model, small follicle numbers; identifier not verified during curation.

Randomised controlled trialJournal of Dermatology · 2013n = 30

Adenosine increases hair thickness in women with female pattern hair loss

Reported increased anagen hair ratio and thick hair rate compared with control lotion.

Limitations — Small sample; industry-sponsored; identifier not verified during curation.

HumanJournal of Dermatological Science · 2008n = 30

Adenosine and dermal papilla growth-factor expression in androgenetic alopecia

Reported increased thick-hair ratio with topical adenosine, with associated FGF7 expression changes in dermal papilla cells.

Limitations — Small, largely single-centre; identifier not verified during curation.

In-vitroInternational Journal of Dermatology · 2007

Caffeine and human hair follicle growth in organ culture

Reported counteraction of testosterone-suppressed hair shaft elongation in ex-vivo follicle culture.

Limitations — Organ culture; topical delivery to the follicle in vivo not established; identifier not verified.

Community evidence

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Sources