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Hair follicle size is mainly influenced by the number of cells and extracellular matrix volume, with cell number having a larger impact.

BMAL1 controls skin cell growth and UV damage risk, peaking at night.

Different small areas within hair follicles send specific signals that control what type of cells stem cells become.

Stem cells help heal skin wounds by moving and changing roles, working with other cells, and needing more research on their activation and behavior.

Different types of skin cells play specific roles in development, healing, and cancer.

Myc activation reduces skin stem cells by affecting cell adhesion.

Patched1 helps prevent tumors by controlling cell growth.

Different types of skin cells have unique genetic markers that affect how likely they are to spread cancer.

TGF-β is crucial for controlling stem cell behavior and changes in its signaling can lead to diseases like cancer.

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

Stem cells in the hair follicle are regulated by their surrounding environment, which is important for hair growth.

Human dermal fibroblasts are the main cells targeted by a virus that can cause a deadly skin cancer, and a certain inhibitor can effectively block this infection.

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.

Understanding how cells die in the skin is important for treating skin diseases and preventing hair loss.

Keratin from human hair shows promise for medical uses like wound healing and tissue engineering.

Hair grows faster in the morning and is more vulnerable to damage from radiation due to the internal clock in hair follicle cells.

ERULUS controls root hair growth by regulating cell wall composition and pectin activity.

PDGFA/AKT signaling is important for the growth and maintenance of certain skin fat cells.

New single-cell analysis techniques are improving our understanding of stem cells and could help in treating diseases.

Hair graying happens because certain cells aren't maintained properly.

Certain immune cells in the skin release a protein that stops hair growth by keeping hair stem cells inactive.

Metabolic signals and cell shape influence how cells develop and change.

BMP signaling controls hair follicle size and cell growth by affecting cell cycle genes.

The circadian clock is crucial for tissue renewal and regeneration, affecting stem cell functions and having implications for health and disease.

Layer-by-Layer self-assembly is promising for biomedical uses like tissue engineering and cell therapy, but challenges remain in material safety and process optimization.

Different signals work together to change gene activity and guide hair follicle stem cells to become specific cell types.

The conclusion is that tissue structure is key for stem cell communication and maintaining healthy tissues.

Stem cells in hair follicles can become various cell types, including neurons.

Muscles and nerves that cause goosebumps also help control hair growth.