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TLR2 helps control hair growth and regeneration, and its reduction with age or obesity can impair hair growth.

Understanding hair follicle development can help treat hair loss, skin regeneration, and certain skin cancers.

Aging mice have slower hair regeneration due to changes in signal balance, but the environment, not stem cell loss, controls this, suggesting treatments could focus on environmental factors.

Mouse Notch is important for determining cell roles in hair follicles.

TGF-β2 helps activate hair follicle stem cells by counteracting BMP signals.

Men with baldness due to androgenetic alopecia still have hair stem cells, but lack specific cells needed for hair growth.

The conclusion is that certain scalp tissue changes are characteristic of lichen planopilaris, with mucinous perifollicular fibroplasia being a new feature for diagnosis.

mTOR signaling helps activate hair stem cells by balancing out the suppression caused by BMP during hair growth.

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

Overactivating Hedgehog signaling makes hair follicle cells in mice grow hair faster and create more follicles.

Vitamin D receptor is important for regulating hair growth and wound healing in mice.

Stem cells can rejuvenate skin, restore hair, and aid in wound healing.

Apoptosis contributes to hair loss in androgenetic alopecia.

ING5 is crucial for stem cell maintenance and preventing certain cancers.

Different immune responses cause hair loss in scalp diseases, with unique patterns in scalp psoriasis possibly protecting against hair loss.

Hair color is determined by melanin produced and transferred in hair follicles.

The system allows precise control of gene expression in mouse skin, useful for studying skin biology.

The risk of skin tumors becoming malignant depends on the specific skin cell type affected.

Mice lacking a key DNA methylation enzyme in skin cells have a lower chance of activating stem cells necessary for hair growth, leading to progressive hair loss.

The extracellular matrix is crucial for controlling skin stem cell behavior and health.

Low-dose radiation affects hair stem cell function and survival by changing their genetic material's structure.

ODC overexpression in hair cells increases tumor growth by reducing Notch signaling.

HAP stem cells can repair nerves, grow hair follicle nerves, and become heart muscle cells, making them useful for regenerative medicine.

Intermittent fasting slows hair growth by damaging hair follicle cells.

Stem cell therapy shows promise for treating hair loss in androgenetic alopecia.

Wounding may stimulate hair growth, but more research is needed to confirm the safety and effectiveness of related treatments.

Different fish use the same genes to regrow teeth.

Exosomes from skin cells can boost hair growth by stimulating a gene called LEF1.

Hair follicle-derived IL-7 and IL-15 are crucial for maintaining skin-resident memory T cells and could be targeted for treating skin diseases and lymphoma.

The skin is a complex barrier for drug penetration, but understanding its structure and interactions can improve drug delivery methods.