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Human hair matrix cells and dermal papilla fibroblasts can form early hair follicle structures but don't produce hair shafts yet.

Nerve fibers may worsen mast cell activity, leading to abnormal elastic fiber buildup from sun exposure.

Different types of sun exposure damage skin cells and immune cells, with chronic exposure leading to more severe and lasting damage.

Researchers developed a 3D skin model with its own immune and blood vessel cells to better understand skin health and disease.

A 90-year-old woman's hand lesion was a rare, aggressive skin cancer treated successfully with surgery.

Different types of stem cells in the skin contribute to the variety of melanoma forms.

Proteins like aPKC and PDGF-AA, substances like adenosine and ATP, and adipose-derived stem cells all play important roles in hair growth and health, and could potentially be used to treat hair loss and skin conditions.

A 12-year-old boy had severe shingles and skin damage after a stem-cell transplant.

Epidermal β-catenin activation changes the dermis by signaling different fibroblast types.

Vesiculobullous lesions should be considered part of canine cutaneous epitheliotropic T-cell lymphoma.

Tiny particles from skin cells can help grow new hair by activating a specific growth signal during skin healing.

Early-stage skin substitutes improve wound healing and skin structure.

A substance called FGF9 from certain immune cells can trigger new hair growth during wound healing in mice, but humans may not have the same response due to fewer of these cells.

Engineered skin using stem cells and collagen sponge effectively healed and regenerated complex skin features in mice.

The new device improves human hair follicle cell growth and differentiation.

Prominin-1 expressing cells in the dermal papilla help regulate hair follicle size and communication but don't aid in skin repair.

Removing a specific gene in certain skin cells causes hair loss in mice by disrupting hair follicle development.

A new ethical skin model using stem cells offers a reliable alternative for dermatological research.

Mutations in the SHH pathway in certain skin cells can cause skin tumors and abnormal hair growth.

The new minoxidil hydrogel is a promising alternative for hair loss treatment, with similar effectiveness and less skin irritation.

The Sonic hedgehog pathway is crucial for new hair growth during mouse skin healing.

Activating the Sonic hedgehog pathway can help regenerate hair follicles during wound healing in mice, potentially improving regeneration after injury.

Keratinocytes grew and migrated into hair follicle areas but disappeared after 15-20 days.

This method is effective for needle-free HIV-1 vaccination by activating immune responses in the skin.

The new matrix improves skin regeneration and graft performance.

The skin is a complex barrier that protects the body, regulates temperature, and helps with immune responses.

Scientists created a 3D printed skin that includes hair and layers similar to real skin using a special gel.

The silk fibroin hydrogel with FGF-2-liposome can potentially treat hair loss in mice.

Sebaceous glands can quickly convert carotene to vitamin A.

Nevus sebaceous is identified by unique skin changes, including thickened skin, fewer hair follicles, and many sebaceous glands.