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The enzymes Aldh1a2 and Aldh1a3 are involved in making retinoic acid in hair follicles and have different roles in hair growth.

Different PADI isoforms help cells develop diverse functions.

ATP-dependent chromatin remodeling is crucial for skin development and stem cell function.

Integrin α6 helps identify different neural crest cell types in the skin.

Developing hair follicles form from ring-shaped patterns, with future stem cells originating from the outer ring, not the upper layers, as previously thought.

Increased ornithine decarboxylase makes normally tumor-resistant mice more sensitive to tumors.

Telogen is an active phase with important biological processes, not a resting phase.

Breast cancer alters specific molecular structures in hair, which revert after cancer removal.

Frog skin cells need the protein desmoplakin for proper development and cell layer formation.

Some hair proteins are specific to hair, while others are also found in skin cells.

Obese mice with a leptin gene mutation have a longer resting phase in their hair cycle, which may help understand certain hair loss conditions.

CD10 and CD34 levels change during hair development and different hair growth stages, which could be important for hair regeneration treatments.

Blocking TGFβ-RI signaling enhances surface ectoderm differentiation from human stem cells.

Blimp1 is crucial for hair follicle growth and skin health.

Krt15+ cells in mice can resist radiation, regenerate tissue, and start tumors, suggesting new cancer treatment targets.

Keratins in Malayan pangolins vary by region, suggesting scales evolved from the tail towards the head.

Keratin-associated proteins have ancient origins and were used for different purposes before being adapted for hair in mammals.

Keratin 2e shows a unique pattern in developing fetal skin, different from other keratins.

The OVOL1 gene, controlled by β-catenin, is crucial for creating hair follicles.

Keratin patterns in hair follicles help understand hair growth and potential hair and nail disorders.

Keratin 19 expression in certain skin cells is temporary and not a reliable stem cell marker.

The human scalp has different types of pigment cells in hair follicles with varying abilities to produce pigment.

Tooth loss can cause premature gray hair due to less chewing.

Krox20 is crucial for hair growth and maintaining skin stem cells.

Pax9 is crucial for proper tongue surface development and preventing skin-like changes.