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Related Experiment Videos

SV40-like sequences in human bone tumors

M Carbone1, P Rizzo, A Procopio

  • 1Department of Pathology, University of Chicago, Illinois 60637, USA.

Oncogene
|August 1, 1996
PubMed
Summary
This summary is machine-generated.

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Simian virus 40 (SV40)-like sequences were unexpectedly found in human bone tumors, particularly osteosarcomas. This suggests a potential link between SV40 and the development of these cancers.

Area of Science:

  • Oncology
  • Virology
  • Molecular Biology

Background:

  • Simian virus 40 (SV40) is a known oncogenic virus in hamsters.
  • Previous studies indicated SV40-like sequences in human ependymomas, choroid plexus tumors, and mesotheliomas.

Purpose of the Study:

  • To investigate the presence of SV40-like sequences in additional human tumor types.
  • To determine if SV40-like sequences are associated with human bone tumors.

Main Methods:

  • Polymerase chain reaction (PCR) was used to amplify SV40 large T antigen (Tag) sequences from 200 tumor and normal tissue DNA samples.
  • Southern blot hybridization and DNA sequencing were employed for confirmation and further characterization of amplified sequences.

Main Results:

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  • SV40-like sequences were detected in 18 out of 200 initial samples.
  • Unexpectedly, 11 of these positive samples were from patients with osteosarcomas.
  • Further analysis confirmed SV40 Tag sequences in 40/126 osteosarcomas and 14/34 other bone tumors, including sequences for the VP1 capsid protein.

Conclusions:

  • SV40-like sequences are present in a significant proportion of human bone tumors, especially osteosarcomas.
  • These findings suggest a potential role for SV40 in the etiology of human bone cancers.