Document Detail

The lower radiosensitivity of mouse kidney cells irradiated in vivo than in vitro: a cell contact effect phenomenon.
MedLine Citation:
PMID:  2045299     Owner:  NLM     Status:  MEDLINE    
For mouse kidney cells assayed in primary culture, the Do and n values were 1.1 +/- 0.06 Gy and 7 +/- 2 for single cells irradiated in vitro, and 1.3 +/- 0.08 Gy and 25 +/- 11 for in vivo irradiation. The lower radiosensitivity in vivo was shown not to be caused by natural hypoxia, as the average oxygen enhancement ratios were 2.6 +/- 0.3 for in vitro and 2.8 +/- 0.4 for in vivo irradiation. Irradiations of fragments of kidney tubules produced similar survivals as irradiations of kidneys in situ, even for irradiation immediately before the fragments were disaggregated into single cells. The critical point of change in radiosensitivity from in vivo to in vitro values due to this contact effect was the time that the kidney cells were monodispersed.
Y M Jen; C M West; J H Hendry
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Publication Detail:
Type:  Comparative Study; In Vitro; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  International journal of radiation oncology, biology, physics     Volume:  20     ISSN:  0360-3016     ISO Abbreviation:  Int. J. Radiat. Oncol. Biol. Phys.     Publication Date:  1991 Jun 
Date Detail:
Created Date:  1991-07-18     Completed Date:  1991-07-18     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7603616     Medline TA:  Int J Radiat Oncol Biol Phys     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1243-8     Citation Subset:  IM    
Department of Radiobiology, Paterson Institute for Cancer Research, Christie Hospital and Holt Radium Institute, Manchester, U.K.
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MeSH Terms
Cell Communication / physiology*
Cell Survival / radiation effects
Kidney / cytology,  physiology,  radiation effects*
Radiation Tolerance / physiology*

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