Nucleolar size indicates the rapidity of cell proliferation in cancer tissues

  • Derenzini M
  • Trerè D
  • Pession A
 et al. 
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Abstract

In order to define the importance of the nucleolus in tumour pathology, the relationship between nucleolar size and function and tumour mass growth rate was studied in vivo. Ten established human cancer cell lines from colon carcinomas and neuroblastomas were inoculated subcutaneously in athymic mice and the doubling time (DT) of the xenograft tumour mass was calculated. The tumour DTs ranged from 3.2 to 15.7 days. Nucleolar size was evaluated in sections from formalin-fixed and paraffin-embedded tumour samples after silver staining for AgNOR proteins, using a specific image analysis system. The nucleolar area values were inversely related to the xenograft tumour mass DTs (r=-0.90; p

Author-supplied keywords

  • AgNOR proteins
  • Cancer cells
  • Cell proliferation rate
  • Nucleolus
  • Quantitation
  • Ribosome biogenesis

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Authors

  • Massimo Derenzini

  • Davide Trerè

  • Annalisa Pession

  • Valentina Sirri

  • Pasquale Chieco

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