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Glossary Human Outer Root Sheath Cells

cells in hair follicle's outer layer aiding growth and regeneration

Human Outer Root Sheath Cells are a type of cell found in the outer layer of the hair follicle. These cells play a crucial role in the growth and regeneration of hair, as they provide structural support and house stem cells that can differentiate into various cell types needed for hair production.

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Research

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Wnt/β-Catenin and ERK Pathway Activation: A Possible Mechanism of Photobiomodulation Therapy with Light-Emitting Diodes That Regulate the Proliferation of Human Outer Root Sheath Cells

research Wnt/β‐catenin and ERK pathway activation: A possible mechanism of photobiomodulation therapy with light‐emitting diodes that regulate the proliferation of human outer root sheath cells

43 citations , September 2017 in “Lasers in Surgery and Medicine”

This study found that LED light irradiation induced proliferation and migration of human outer root sheath cells, potentially through the stimulation of the Wnt/β-catenin and ERK signaling pathways.

research VEGF upregulates VEGF receptor-2 on human outer root sheath cells and stimulates proliferation through ERK pathway

23 citations , June 2012 in “Molecular Biology Reports”

This study found that human outer root sheath cells express VEGF receptor-2, and exogenous VEGF165 significantly stimulates their proliferation through activation of the ERK signaling pathway.

research Mesenchymal Stem Cells Antagonize IFN-Induced Proinflammatory Changes and Growth Inhibition Effects via Wnt/β-Catenin and JAK/STAT Pathway in Human Outer Root Sheath Cells and Hair Follicles

14 citations , April 2021 in “International journal of molecular sciences”

This study found that human hematopoietic mesenchymal stem cells increased the viability and migration of human outer root sheath cells in an in vitro alopecia areata model, involving Wnt/β-catenin and JAK/STAT pathways.

Particulate Matter Induces Inflammatory Response in Human Outer Root Sheath Cells via Oxidative Stress-Dependent MAPK and JAK-STAT Signaling Pathways

research 705 Particulate matter induces inflammatory response in human outer root sheath cells via oxidative stress-dependent MAPK and JAK-STAT signaling pathways

July 2022 in “The journal of investigative dermatology/Journal of investigative dermatology”

This study suggests that particulate matter can induce inflammation in human outer root sheath cells, potentially affecting hair growth, through oxidative stress-dependent MAPK and JAK-STAT signaling pathways.

Wnt/β-Catenin and ERK Pathway Activation: The Possible Mechanism of Various LED Light Regulating the Proliferation of Human Outer Root Sheath Cells

research Wnt/β-catenin and ERK pathway activation: The possible mechanism of various light-emitting diode light regulates the proliferation of human outer root sheath cells

May 2017 in “Journal of The American Academy of Dermatology”

LED light helps human hair root cells grow and move by activating certain cell pathways.

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community IGFBP‐rP1 is a potential therapeutic target in androgenic alopecia

in Research/Science 13 upvotes 1 year ago

IGFBP‐rP1 shows potential for treating androgenic alopecia by influencing hair cycle transitions. Increasing IGF-1 levels may have similar effects to Minoxidil and 5-AR inhibitors in reducing hair loss.

community Hair loss research focused on chemistry for decades because we misunderstood the mechanics of growth.

51 upvotes 7 months ago

Hair growth relies on mechanical forces, not just chemicals, with tissue acting like a motor. Minoxidil and finasteride help, but maintaining tissue elasticity and addressing mechanical issues are essential.

community My understanding of how androgenetic alopecia works (plus FIN and DUT)

18 upvotes 4 years ago

Androgenetic alopecia is affected by scalp DHT levels, not sensitivity, with treatments like finasteride and dutasteride aiming to optimize these levels. Personalized DHT management is crucial for effective hair growth.

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.

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.

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learn Osteopontin

signaling protein that, when suppressed, may grow hair by reducing inflammation and stem cell loss

learn Epidermal Growth Factor

learn Overview

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