In their seminal experiments from the early 1960's, Leonard Hayflick and Paul Moorhead found out that normal human fetal fibroblasts in culture reach a maximum of approximately 50 cell population doublings before becoming senescent.
In ihren bahnbrechenden Experimenten aus den frühen 1960er Jahren fanden Leonard Hayflick und Paul Moorhead heraus, dass normale menschliche fetale Fibroblasten in Kultur maximal etwa 50 Zellpopulationsverdopplungen erreichen, bevor sie altern .