The New England Journal of Medicine
e-mail icon  FREE NEJM E-TOC    HOME   |   SUBSCRIBE   |   CURRENT ISSUE   |   PAST ISSUES   |   COLLECTIONS   |    Advanced Search
Sign in | Get NEJM's E-Mail Table of Contents — Free | Subscribe
 
Original Article
PreviousPrevious
Volume 326:988-993 April 9, 1992 Number 15
NextNext

DNA sequences similar to those of simian virus 40 in ependymomas and choroid plexus tumors of childhood
DJ Bergsagel, MJ Finegold, JS Butel, WJ Kupsky, and RL Garcea

 Sign up for free e-toc
 

Tools and Services
-Add to Personal Archive
-Add to Citation Manager
-Notify a Friend
-E-mail When Cited

More Information
-PubMed Citation
Abstract

BACKGROUND. Ependymomas and papillomas of the choroid plexus occur in early childhood. The ubiquitous human polyomaviruses, BK virus and JC virus, have been associated with the induction of these neoplasms in animal models. A related monkey polyomavirus, simian virus 40 (SV40), is highly tumorigenic in rodents and also induces choroid plexus papillomas. METHODS. We tested the possibility that polyomaviruses were associated with these tumors in humans. Tumors from 31 children--20 with choroid plexus neoplasms and 11 with ependymomas--were evaluated for the presence of polyomavirus T-antigen gene sequences by means of amplification with the polymerase chain reaction. RESULTS. Ten of the 20 choroid plexus tumors and 10 of the 11 ependymomas contained amplification products that preferentially hybridized to probes specific for SV40 viral DNA rather than BK or JC viral DNA. In two specimens, DNA sequencing demonstrated that the amplified sequence was identical to the sequence of that region of the SV40 gene. In three other specimens, amplification with SV40-specific primers revealed a 574-bp segment of the SV40 viral gene. In 7 of 11 tumors examined by immunohistochemical staining, viral T antigen was expressed in the nuclei of the neoplastic cells. CONCLUSIONS. Half of the choroid plexus tumors and most of the ependymomas that we studied contained and expressed a segment of T-antigen gene related to SV40. These results suggest that SV40 or a closely related virus may have an etiologic role in the development of these neoplasms during childhood, as in animal models.


Source Information

Division of Pediatric Oncology, Dana-Farber Cancer Institute, Children's Hospital, Boston.


This article has been cited by other articles:



HOME  |  SUBSCRIBE  |  SEARCH  |  CURRENT ISSUE  |  PAST ISSUES  |  COLLECTIONS  |  PRIVACY  |  HELP  |  beta.nejm.org

Comments and questions? Please contact us.

The New England Journal of Medicine is owned, published, and copyrighted © 2008 Massachusetts Medical Society. All rights reserved.