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Related Experiment Videos

Prognostic value of AgNOR counting.

A Pich1, E Margaria, L Chiusa

  • 1S GIOVANNI HOSP,DIV PATHOL,I-10123 TURIN,ITALY. AZIENDA OSPED S GIOVANNI BATTISTA,DIV UROL,I-10126 TURIN,ITALY.

Oncology Reports
|May 19, 2011
PubMed
Summary
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Argyrophilic nucleolar organizer regions (AgNORs) counting in renal cell carcinoma shows significant prognostic value. Lower AgNOR counts correlate with better patient survival, indicating its utility in tumor pathology.

Area of Science:

  • Oncology
  • Pathology
  • Cell Biology

Background:

  • The prognostic significance of argyrophilic nucleolar organizer regions (AgNORs) in tumor pathology remains debated.
  • Renal cell carcinoma (RCC) prognosis can be challenging to determine accurately.

Purpose of the Study:

  • To prospectively evaluate the prognostic value of AgNOR counting in renal cell carcinoma.
  • To determine if AgNOR count can predict patient survival and disease recurrence.

Main Methods:

  • Prospective study of 21 renal cell carcinoma cases.
  • Tumor sections stained using the Ploton method in 1990.
  • AgNORs counted in 200 tumor cells per nucleus; mean AgNOR count calculated.
  • Patients followed for at least 6 years for survival analysis.

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Main Results:

  • Mean AgNOR count was 6.13 (median 5.94, SD 1.78).
  • Patients with ≤5.94 AgNORs/cell survived at 6-year follow-up.
  • Only 60% of patients with >5.94 AgNORs/cell survived (p=0.01).
  • AgNOR count retained independent prognostic significance in multivariate analysis (p=0.015).

Conclusions:

  • AgNOR count demonstrates significant prognostic value in renal cell carcinoma.
  • Lower AgNOR counts are associated with improved patient survival.
  • AgNOR counting is a valuable tool for predicting RCC prognosis, despite small sample size.