Preneoplastic lesions induced by myc and src oncogenes in a heterotopic rat colon.

Publication/Presentation Date

2-1-1991

Abstract

With the use of viral vectors harboring myc and src oncogenes, we have assessed the potential contribution of these different elements to colonic neoplasia using a transplantation technique resulting in the formation of a heterotopic colon in Wistar Furth rats. While myc alone induced atypia and some dysplasia, src induced focal dysplastic lesions throughout the colon mucosa with evidence of metaplasia. In contrast, lesions induced by myc and src acting cooperatively, were highly dysplastic with evidence of tumor formation after protracted periods. These results indicated the formation of histologically distinct preneoplastic lesions elicited by the action of a single oncogene in colon implants with the production of adenocarcinomas when such oncogenic elements act cooperatively. This model provides an opportunity for studies of the action of different oncogenes, acting singly or in combination, in the multi-step progression to colon tumor formation.

Volume

6

Issue

2

First Page

303

Last Page

309

ISSN

0950-9232

Disciplines

Medicine and Health Sciences

PubMedID

2000223

Department(s)

Department of Surgery

Document Type

Article

Share

COinS