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Follistatin helps hair growth and cycling, while activin prevents it.

KIF18B is important for correctly positioning cell division machinery in skin cells, affecting hair follicle development.

Apoptosis is essential for human skin development and forming a functional epidermis.

Understanding hair growth involves complex interactions between molecules and could help treat hair disorders.

Wool follicles are complex, involving interactions between different cell types and structures.

The article concludes that the wool follicle is a valuable model for studying tissue interactions and has potential for genetic improvements in wool production.

Reptilian scales, feathers, and hairs evolved from changes in skin cell interactions.

Hair loss is mainly caused by hormones, autoimmune issues, and chemotherapy, and needs more research for treatments.

Skin stem cells are crucial for maintaining and repairing the skin and hair, using a complex mix of signals to do so.

Genes related to keratin, skin cell differentiation, and immune functions are key in hedgehog skin and spine development.

The study found that certain genes are important for hedgehog skin appendage development and immunity, with spines possibly evolving for protection and infection resistance.

Skin stem cells are maintained by signals from nearby cells and vary in their ability to renew and mature.

HGF/SF increases skin melanocytes but doesn't change melanin type or amount.

Adult stem cells with Tp63 can form hair and skin cells when placed in new skin, showing they have hidden abilities for skin repair.

The cornified envelope is crucial for skin's barrier function and involves key proteins and genetic factors.

Changing the environment around stem cells could help tissue repair, but it's hard to be precise and avoid side effects.

Hair, teeth, and mammary glands develop similarly at first but use different genes later.

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

Genetically-altered adult stem cells can help in wound healing and are becoming crucial in regenerative medicine and drug design.

Changes in keratin affect skin health and can lead to skin disorders like blistering diseases and psoriasis.

Lizards can regrow their tail scales with the same structure, distribution, and gender-specific features as the original ones, and this unique ability is not seen in adult mammals.

Cultured epithelium can form hair follicles when combined with dermal papillae.

Hair growth is influenced by hormones and goes through different phases; androgens can both promote and inhibit hair growth depending on the body area.

TGF-alpha is present in sheep and ferret skin and may affect hair growth without directly stimulating cell proliferation.

Hair growth can be induced by transplanting certain cells, but these cells lose their properties during culturing. The best cell interaction happens in a liquid medium under gravity, and using collagen doesn't help. Future research could focus on using growth factors to stimulate these cells.

Hair follicle stem cells are key for hair and skin regeneration, can be reprogrammed, and have potential therapeutic uses, but also carry a risk of cancer.

Skin aging is due to impaired stem cell mobilization or fewer responsive stem cells.

Different types of stem cells and their environments are key to skin repair and maintenance.

The Foxn1 gene mutation causes hairlessness and immune system issues, and understanding it could lead to hair growth disorder treatments.

Human hair follicles can regenerate after removal, but with low success rate.