Survival of human diploid skin fibroblasts from normal individuals after x-irradiation

John B. Little, John Nove, Louise C. Strong, Warren W. Nichols

Research output: Contribution to journalArticlepeer-review

65 Scopus citations

Abstract

The cytotoxic effect of X-rays was measured by a colony formation assay in multiple experiments with fibroblast cell strains derived from 24 presumably normal individuals, received as 65 different coded and blinded samples. Each strain was received on two or more occasions at different times and bearing different codes. The means and standard deviations of the survival curve parameters for the 24 strains were: D0 = 123 ± 23; D10 = 273 ± 42 cGy. The D0 ranged from 89 to 175 and the D10 from 196 to 372 cGy. The degree of interexperimental variation, though generally minimal, differed considerably among cell strains. There was no systematic effect of passage level, cloning efficiency, serum lot, age or sex of the donor on X-ray survival. These results confirm that the intrinsic radiosensitivity varies significantly among skin fibroblasts isolated from clinically normal individuals, apparently owing to as yet unidentified genetic factors.

Original languageEnglish (US)
Pages (from-to)899-910
Number of pages12
JournalInternational journal of radiation biology
Volume54
Issue number6
DOIs
StatePublished - 1988

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging

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