Expectations in the Study on Growth Regulation of Thyroid Epithelial Cells in Vitro

  • Yoichi Kondo


The life cycle of an individual cell is known to be composed of a mitotic (M) phase, a DNA synthetic (S) phase, and two gaps between M and S, which we denoted G1 and G2. Recent studies indicated that proliferation of normal cultured cells is under the control of exogenous growth factors, and in the absence of the proper growth factors, the cells become arrested in the G1 phase. Serum added to the culture medium is considered to be a source of growth factors.


Epidermal Growth Factor Thyroid Cell Stimulate Cell Growth Exogenous Growth Factor Thyroid Epithelial Cell 
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Copyright information

© Springer Science+Business Media New York 1986

Authors and Affiliations

  • Yoichi Kondo
    • 1
  1. 1.Department of Physical Biochemistry, Institute of EndocrinologyGunma UniversityMaebashiJapan

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