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Lgr5 is a marker for active, self-renewing stem cells in the intestine and skin, important for tissue maintenance.

TGF-β is crucial for tissue repair and can cause diseases if not properly regulated.

Plucking some hairs can trigger nearby unplucked hairs to grow back more due to a collective response.

Activating the Sonic hedgehog gene in mice can start the hair growth phase.

Skin fat cells help with skin balance, hair growth, and healing wounds.

Chitosan nanofiber scaffolds improve skin healing and are promising for wound treatment.

Too much Smad7 changes skin and hair development by breaking down a protein called β-catenin, leading to more oil glands and fewer hair follicles.

Different types of stem cells exist within individual skin layers, and they can adapt to damage, transplantation, or tumor growth. These cells are regulated by their environment and genetic factors. Tumor growth is driven by expanding, genetically altered cells, not long-lived mutant stem cells. There's evidence of cancer stem cells in skin tumors. Other cells, bacteria, and genetic factors help maintain balance and contribute to disease progression. A method for growing mini organs from single cells has been developed.

Alopecia areata is likely caused by a combination of genetic factors and immune system dysfunction, and may represent different diseases with various causes.

The TGF-β family helps control how cells change and move, affecting skin, hair, and organ development.

Activin helps skin growth and healing mainly through stromal cells and affects keratinocytes based on its amount.

The research identified six functional hair keratin genes and four pseudogenes, providing insights into hair formation and gene organization.

The document concludes that proper diagnosis and FDA-approved treatments for different types of hair loss exist, but treatments for severe cases often fail and future improvements may focus on hair follicle stem cells.

The circadian clock influences the behavior and regeneration of stem cells in the body.

K39 and K40 are the last keratins expressed in hair development, completing the hair keratin catalog.

Nanoparticles can enter the skin, potentially causing toxicity, especially in damaged skin.

Multiphoton microscopy is a promising tool for detailed skin imaging and could improve patient care if its challenges are addressed.

High proliferation and cell delamination drive early skin development, while later stages may not rely on cell division orientation.

Wnt signaling is important for development and cell regulation but can cause diseases like cancer when not working properly.

Hoxc13 regulates specific hair protein genes on mouse chromosome 16.

Androgen receptor activity blocks Wnt/β-catenin signaling, affecting hair growth and skin cell balance.

Activin B improves wound healing and hair growth by helping stem cells move using certain cell signals.

New research on prostamide F2α has led to treatments for glaucoma and eyelash growth and may have more medical uses.

3,4,5-tri-O-caffeoylquinic acid promotes hair growth by activating the β-catenin pathway.

Eph/ephrin signaling is important for skin cell behavior and could be targeted to treat skin diseases.

DA-MeHA hydrogel effectively aids stem cell-based skin regeneration.

GLI2 increases follistatin production in human skin cells.

Spiny mice are better at regenerating hair after injury than laboratory mice and could help us understand how to improve human skin repair.

Extramammary Paget disease can spread deeply into tissues, reaching up to 3.6 mm.

Disruptions in epidermal polarity genes can lead to skin diseases.