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Effects of radical-scavenging enzymes and reduced oxygen exposure on growth and chromosome abnormalities of Werner syndrome cultured skin fibroblasts

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Summary

Two sister strains of skin fibroblast-like (FL) cells from a patient with Werner's syndrome (adult progeria) were grown in regular tissue culture medium or medium supplemented with the radical-scavenging enzymes superoxide dismutase and catalase. Differences in proliferative potential were shown to be due to strain variation rather than to treatment with the enzymes. Two independent strains were also grown in ambient (18%) or reduced (1%) concentrations of oxygen. All cultures (untreated, treated with enzymes, treated with reduced oxygen exposure) displayed the limited in vitro growth potential and cytogenetic abnormality characteristic of Werner's syndrome FL cells; thus the underlying defect in Werner's syndrome does not appear to be related to defective protection against or repair of damage by free radicals.

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Correspondence to D. Salk.

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Salk, D., Au, K., Hoehn, H. et al. Effects of radical-scavenging enzymes and reduced oxygen exposure on growth and chromosome abnormalities of Werner syndrome cultured skin fibroblasts. Hum Genet 57, 269–275 (1981). https://doi.org/10.1007/BF00278942

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Keywords

  • Catalase
  • Superoxide Dismutase
  • Chromosome Abnormality
  • Skin Fibroblast
  • Proliferative Potential