Hedgehog signaling can create new hair follicles in adult skin but may increase cancer risk.
176 citations
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September 2006 in “Stem Cells” BMP signaling prevents hair growth by stopping stem cell activation.
September 2017 in “Journal of Investigative Dermatology” Researchers created human cells that can turn into sebocytes, which may help study and treat skin conditions like acne.
December 2015 in “OPAL (Open@LaTrobe) (La Trobe University)” Estrogen speeds up hair follicle cell death, causing early hair growth cycle changes, but only if a specific receptor is present.
149 citations
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July 2017 in “PLoS Biology” Hair follicle patterns form through a mix of self-organization and signaling interactions.
August 2025 in “Journal of Pediatric Endocrinology and Metabolism” A rare ovarian tumor in a 2-year-old girl was successfully removed, normalizing her hormone levels.
June 2020 in “Journal of Investigative Dermatology” Scientists successfully grew mini hair follicles using human skin cells, which could help treat baldness.
September 2018 in “Apollo (University of Cambridge)” Translation levels actively determine keratinocyte cell fate.
37 citations
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April 2013 in “PLoS ONE” Thymosin Beta 4 helps human dental pulp cells develop into tooth-forming cells, suggesting it could aid dental regeneration.
31 citations
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June 2017 in “Regeneration” BMP2 needs periosteal tissue to help regenerate mouse middle finger bones within a specific time.
January 2009 in “한국피부장벽학회지” Calcium is crucial for skin development and healing.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Developing hair follicles form from ring-shaped patterns, with future stem cells originating from the outer ring, not the upper layers, as previously thought.
January 2024 in “Updates in clinical dermatology” October 2025 in “Journal of the Endocrine Society” Ovarian hyperthecosis can cause high testosterone and symptoms like hair loss, and surgery can help improve these symptoms.
36 citations
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May 2016 in “Biomaterials” Endo-HSE helps grow hair-like structures from human skin cells in the lab.
June 1996 in “Journal of Dermatological Science” April 2026 in “International Journal of Biological Macromolecules”
December 2016 in “University of Birmingham Institutional Research Archive (University of Birmingham)” Steroid-producing capabilities in certain cancers may contribute to treatment resistance.
10 citations
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January 2009 Collagen XVIII affects wound healing, hair growth, and bone development, with its absence speeding up processes and overexpression causing delays and abnormalities.
April 2017 in “Journal of Investigative Dermatology” Dermal papilla cells can help form hair-like structures in lab-grown skin cells.
11 citations
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June 2019 in “Tissue & Cell” Hair stem cells produce a protein called COL17A1 that plays a key role in their development and is linked to hair thinning and baldness.
26 citations
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January 1992 in “Carcinogenesis” TPA strongly increases ODC activity in certain skin cells, potentially aiding tumor growth.
42 citations
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December 2011 in “The journal of immunology/The Journal of immunology” RANKL causes lymph nodes to grow by making certain cells multiply.
65 citations
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September 2004 in “The American journal of pathology” Blocking BMP signaling causes hair loss and disrupts hair growth cycles.
January 2005 in “Doctoral thesis, University of London.” Activating β-catenin signaling can trigger hair growth and new hair follicle formation.
289 citations
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May 2003 in “Journal of Investigative Dermatology” Human skin can produce steroids from cholesterol.
990 citations
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October 1999 in “Development” Activated LEF/TCF complexes are crucial for hair development and cycling.
June 2003 in “Obstetrical & Gynecological Survey” Postmenopausal ovary stromal cells have a unique makeup and limited steroid production, suggesting androgens come from the adrenal gland.
62 citations
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August 2018 in “Frontiers in Endocrinology” Androgens are important for normal ovarian function and estrogen production, but may not be the main cause of follicle death.