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

Fat-derived stem cells show promise for skin repair and reducing aging signs but need more research for consistent results.

TGF-β signaling is crucial for stem cell maintenance, differentiation, and has implications for cancer treatment.

Macrophages help heal nerves by aiding the maturation of Schwann cells and are important for nerve repair.

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.

Prolactin contributes to hair loss by promoting hair follicle shrinkage and cell death.

Stress can stop hair growth in mice, and treatments can reverse this effect.

Normal skin cell renewal doesn't need RAR signaling, but vitamin A-related skin thickening does.

Fat cells in the skin help start healing and form important repair cells after injury.

Stem cell plasticity is crucial for wound healing but can also contribute to cancer development.

Targeting androgen receptors could be a promising way to treat skin disorders with fewer side effects.

The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.

Asia has made significant progress in tissue engineering and regenerative medicine, but wider clinical use requires more development.

Hormones, especially androgens, play a big role in acne, but most acne sufferers don't have a hormone disorder. Hormonal treatments, including birth control pills, can be very effective for women whose acne doesn't improve with regular treatments.

Macrophages help regrow hair by activating stem cells using AKT/β-catenin and TNF.

Platelet-rich plasma (PRP) is a cheap and easy treatment for hair loss, but not suitable for everyone. It also helps in healing ulcers, rejuvenating skin, and improving hair transplants.

Smoking harms the skin, causing early aging and increasing cancer risk, but stopping smoking can improve skin health.

Tiny particles from stem cells help activate hair growth cells and encourage hair growth in mice without being toxic.

Liposomes could improve how skin care products work but are costly and not very stable.

Minoxidil is the only FDA-approved topical drug for treating male or female pattern hair loss, and other medications like finasteride and dutasteride can also increase hair growth.

Hair color production is closely linked to the active growth phase of hair in mice and may also influence hair growth itself.

Stress increases a factor in mice that leads to hair loss, and blocking this factor may prevent it.

Lowering testosterone speeds up wound healing in male mice.

We need more research to better understand human hair follicle stem cells for improved treatments for hair loss and skin cancer.

MicroRNA-214 is important for skin and hair growth because it affects the Wnt pathway.

Chemotherapy often causes temporary hair loss, which is distressing and needs better treatment and support.

Nerves and chemicals in the body can affect hair growth and loss.

New treatments for Alopecia Areata show promise but need to be more effective and affordable.

Hair follicles are hormone-sensitive and involved in growth and other functions, with potential for new treatments, but more research is needed.

Prolactin affects hair growth and skin conditions, and could be a target for new skin disease treatments.