In Vitro

, Volume 14, Issue 1, pp 155–161

Regulation of differentiation in normal and transformed erythroid cells

Authors

  • Richard A. Rifkind
    • College of Physicians and SurgeonsColumbia University
  • Paul A. Marks
    • College of Physicians and SurgeonsColumbia University
  • Arthur Bank
    • College of Physicians and SurgeonsColumbia University
  • Masaaiki Terada
    • College of Physicians and SurgeonsColumbia University
  • Roberta C. Reuben
    • College of Physicians and SurgeonsColumbia University
  • George M. Maniatis
    • College of Physicians and SurgeonsColumbia University
  • Eitan Fibach
    • College of Physicians and SurgeonsColumbia University
  • Uri Nudel
    • College of Physicians and SurgeonsColumbia University
  • Jane E. Salmon
    • College of Physicians and SurgeonsColumbia University
  • Yair Gazitt
    • College of Physicians and SurgeonsColumbia University
Symposia Proceeding Mechanisms of Cellular Control

DOI: 10.1007/BF02618182

Cite this article as:
Rifkind, R.A., Marks, P.A., Bank, A. et al. In Vitro (1978) 14: 155. doi:10.1007/BF02618182

Summary

Studies are described employing two erythropoietic systems to elucidate regulatory mechanisms that control both normal erythropoiesis and erythroid differentiation of transformed hemopoietic precursors. Evidence is provided suggesting that normal erythroid cell precursors require erythropoietin as a growth factor that regulates the number of precursors capable of differentiating. Murine erythroleukemia cells proliferate without need of erythropoietin; they show a variable, generally low, rate of spontaneous differentiation and a brisk rate of erythropoiesis in response to a variety of chemical agents. Present studies suggest that these chemical inducers initiate a series of events including cell surface related changes, alterations in cell cycle kinetics, and modifications of chromatin and DNA structure which result in the irreversible commitment of these leukemia cells to erythroid differentiation and the synthesis of red-cell-specific products.

Key words

erythropoiesisFriend cellerythroleukemiaerythropoietindifferentiation

Copyright information

© Tissue Culture Association 1977