January 2026 in “Journal of Radiation Research” This study found that using human hair follicle dermal papilla cells, 53BP1 focus counting can estimate radiation doses from 50 mGy after 5 hours, and focus size analysis refines dose estimation for doses ≥ 500 mGy up to 96 hours.
January 2012 in “Else Kröner-Fresenius Symposia” This symposium reported that DNA damage accumulation in aging stem cells affects genome integrity, highlighting novel mechanisms like Bmi1's role in DNA repair and the involvement of BATF in lymphoid differentiation.
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February 2016 in “Science” This research found that Foxc1 transcription factor and COL17A1 are critical in regulating quiescence and hair thinning in hair follicle stem cells, with aging-related DNA damage leading to hair loss.
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October 2025 in “Nature Communications” This study observed that, in mouse ear epidermal stem cells, a cell-autonomous size control mechanism involving the RB pathway dictates S phase entry timing based on cell size, despite external environmental variations affecting growth rates.
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April 2016 in “CRC Press eBooks” Skin aging reflects overall body aging and can indicate internal health conditions.