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Glossary Stem Cell Quiescence

state where stem cells remain inactive to preserve function

Stem cell quiescence, also known as stem cell dormancy, refers to a state in which stem cells remain inactive or non-dividing. This state helps protect the stem cells from exhaustion and damage, ensuring they can be activated when needed for tissue repair or regeneration. Quiescent stem cells are crucial for maintaining long-term tissue health and preventing premature aging or diseases like cancer.

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Research

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research Coexistence of Quiescent and Active Adult Stem Cells in Mammals

1201 citations , January 2010 in “Science”

This review discusses stem cells in the hair follicle, bone marrow, and intestinal epithelium and introduces a model where quiescent and cycling stem cells may coexists in "zoned" configurations.

research Quiescent Tissue Stem Cells Evade Immune Surveillance

169 citations , February 2018 in “Immunity”

In this study, researchers found that quiescent stem cells resist immune attack due to downregulated antigen presentation, which may help explain the immune evasion of early cancer-initiating cells.

The Mesenchymal Niche of the Hair Follicle Induces Regeneration by Releasing Primed Progenitors from Inhibitory Effects of Quiescent Stem Cells

research The Mesenchymal Niche of the Hair Follicle Induces Regeneration by Releasing Primed Progenitors from Inhibitory Effects of Quiescent Stem Cells

35 citations , July 2018 in “Cell Reports”

This study found that the dermal papilla of the hair follicle regulates stem cell quiescence and regeneration by modulating Shh and Wnt signaling pathways, highlighting the importance of signaling cross talk in regeneration.

research Stem Cells on Alert: Priming Quiescent Stem Cells after Remote Injury

13 citations , July 2014 in “Cell stem cell”

This study identified a novel phase of stem cell quiescence, GAlert, in mice, regulated by mTORC1, that primes stem cells for injury response.

research Factors regulating quiescent stem cells: insights from the intestine and other self-renewing tissues

8 citations , December 2015 in “The Journal of Physiology”

This review examines regulatory mechanisms of quiescent stem cells in tissue homeostasis, drawing on observations from the intestine and other self-renewing tissues, without presenting new data.

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community "Hair Follicle Stem Cells are quiescent 99% of the time and permanently reside in the hair follicle"

in Research/Science 1391 upvotes 1 year ago

Hair follicles are mostly dormant but can be reactivated with treatments like minoxidil, finasteride, and microneedling. A new drug, PP405, shows promise for hair regrowth but may not be available until 2027-2028.

community The ending of alopecia? Corticosterone inhibits GAS6 to govern hair follicle stem-cell quiescence

63 upvotes 4 years ago

Corticosterone inhibits GAS6, affecting hair follicle stem-cell activity, with potential implications for stress-related hair loss. Ashwagandha and Vitamin K are suggested for reducing cortisol, but their effectiveness is debated.

community Relax to grow more hair. Study title: Corticosterone inhibits GAS6 to govern hair follicle stem-cell quiescence

6 upvotes 5 years ago

Relaxation may promote hair growth by reducing corticosterone, which affects hair follicle stem cells. Corticosteroids are used for alopecia areata, but their long-term use for androgenic alopecia is uncertain.

community PP405 Won’t Work: Follicle Is Miniaturized, Fibrosed, And Missing Key Support Cells

7 months ago

PP405 is ineffective for miniaturized, fibrosed hair follicles in androgenetic alopecia. AMP303 may activate hair follicle stem cells, but minoxidil and finasteride are still the main treatments.

community PP405: The Ultimate Hair Loss Drug for Complete Hair Growth

211 upvotes 1 year ago

PP405 is a new hair loss treatment in phase 2 trials that may promote hair growth by increasing lactate production and activating hair follicle stem cells. It could potentially replace hormone-disrupting treatments like Minoxidil and finasteride.

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