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Radiation Protection Dosimetry Advance Access published online on December 4, 2006
Radiation Protection Dosimetry, doi:10.1093/rpd/ncl457
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© The Author 2006. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

Micros 2005 Special Issue

NEOPLASTIC TRANSFORMATION OF A HUMAN HYBRID CELL LINE BY ALPHA PARTICLES IN RELATION TO MAMMOGRAPHY X RAYS

M. Frankenberg-Schwager 1 *, S. Spieren 1, E. Pralle 1, and D. Frankenberg 1

1 University of Goettingen, Center of Radiology, Department of Nuclear Medicine, Von-Siebold-Strasse 3, D-37075 Goettingen, Germany

* To whom correspondence should be addressed.
M. Frankenberg-Schwager, E-mail: dfrank{at}med.uni-goettingen.de


  Abstract

The hybrid cell line CGL1 is the only cell line which allows quantitation of neoplastic transformation in human cells. Hybrid cells were exposed to 3.4 MeV alpha particles or to mammography X rays (29 kVp) and both survival and neoplastic cell transformation were assayed. For comparison, previously published data obtained with 200 kVp X rays are also included. Alpha particles were significantly more efficient than 29 kVp X rays in cell killing. Surprisingly, the efficiency of mammography X rays for the induction of neoplastic cell transformation was close to that observed for alpha particles.


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