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Activins and follistatins, part of the TGFβ family, are crucial for hair follicle development and skin health, affecting growth, repair, and the hair cycle.

Mice with human gene experienced hair loss when treated with DHT.

Blocking a specific protein signal can make hair grow on mouse nipples.

VDR regulation varies by tissue and is crucial for its biological functions.

Two new proteins, hKAP1.6 and hKAP1.7, are found in the hair follicle cortex.

KLF4 is important for maintaining skin stem cells and helps heal wounds.

A special environment is needed to fully activate sleeping stem cells.

Bioluminescence imaging can track hair follicle cells and help study hair regrowth.

The KRTAP11-1 gene promoter is crucial for specific expression in sheep wool cortex.

Smad2/3-dependent TGF-β signaling increases during wound healing.

Cells with active Wnt signaling are less likely to turn into cancer when exposed to a cancer-causing gene.

Mice genetically modified to produce more Del1 protein had faster hair regrowth.

Overexpressing Merkel cell virus proteins in human hair follicles can create clusters of cells that resemble Merkel cell cancer.

Dentin sialoprotein and phosphophoryn are present in rodent hair follicles and may help hair growth and development.

Versican is important for hair growth and could help find new hair regrowth treatments.

Acid inside cells speeds up aging and turns on aging signs in mice.

Estrogen is important for keeping adult mouse nipple skin healthy by controlling certain cell signals.

Testosterone can both promote hair growth and cause baldness by affecting hair growth signals.

The mouse model suggests male pattern baldness may be due to an enzyme increasing DHT and higher androgen receptor levels in hair follicles.

Changing CDK4 levels affects the number of stem cells in mouse hair follicles.

Antizyme reduces tumor growth and normalizes skin cell development affected by MEK.

Key genes for mink fur have been identified, aiding conservation efforts.

Shh and Dhh affect skin development and can cause tumors, while Ihh does not.

Wnt and Shh signaling are key in noggin-induced tumors, and blocking them can slow tumor growth.

The paper concludes that animal models help in understanding hair loss causes and developing new treatments.

Merkel cells stabilize nerve endings in the skin, and they change independently of each other.

Neutrophils quickly respond to skin injury.

LGR5 is a marker found in hair follicle stem cells in various species and is important for hair growth and skin repair.

Neutrophils quickly move to the site of skin injury.

The conclusion is that the cornea has two types of stem cells, with Lrig1+ cells being key for renewal in aging corneas, independent of CD44.