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International Journal of Radiation Biology and Related Studies in Physics, Chemistry and Medicine Volume 44, 1983 - Issue 5
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Original Article

Identifying Superoxide-sensitive Progenitor Cells in Mouse Bone Marrow

W.S. Chelack Medical Biophysics Branch, Atomic Energy of Canada Limited Research Company, Whiteshell Nuclear Research Establishment, Pinawa, Manitoba, ROE 1LO, Canada
&
A. Petkau Medical Biophysics Branch, Atomic Energy of Canada Limited Research Company, Whiteshell Nuclear Research Establishment, Pinawa, Manitoba, ROE 1LO, Canada
Pages 523-529 | Received 07 Oct 1982, Accepted 15 Jun 1983, Published online: 03 Jul 2009
 
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Summary

Macrophage progenitor cells in bone marrow, that develop into attached colonies in liquid culture medium, contain a fraction of cells sensitive to photochemically generated superoxide radicals. This fraction varies from one animal to another. Populations of cells containing the superoxide-sensitive fraction show a greater sensitivity to X-rays than do populations in which this fraction has been photochemically inactivated. The change in radiosensitivity was proportional to the superoxide-sensitive fraction.

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