Niche Required for Inducing Quiescent Stem Cells

    January 2008 in “ Cold Spring Harbor Symposia on Quantitative Biology ”
    Shin‐Ichi Nishikawa, Masatake Osawa, Saori Yonetani, Satomi Torikai-Nishikawa, Rasmus Freter
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    TLDR A special environment is needed to fully activate sleeping stem cells.
    In 2008, Nishikawa et al. conducted a study on melanocyte stem cells (MSCs) in the hair follicle to understand the role of the stem cell niche in maintaining stem cell quiescence. They used transgenic mice with GFP-labeled MSCs to isolate these cells using fluorescence-activated cell sorting (FACS) and examined the role of Notch signaling in MSC development and maintenance. The researchers found that while fibroblast growth factor-2 (FGF-2) could induce some MSC characteristics in vitro, it was not sufficient to induce the complete quiescent MSC state. The study highlighted the complexity of the induction process for quiescent MSCs, indicating that multiple signals are required to fully induce MSC features and the quiescent state. This research aimed to further define the molecular signals necessary for MSC induction, contributing to the broader understanding of stem cell biology and regenerative medicine.
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