Transformation of a Rat Epithelial-Like Cell Line by Murine Sarcoma Virus

Abstract
The transformation of an epithelial-like Sprague-Dawley rat line (RL) by the Harvey strain of murine sarcoma virus (MSV-H) was studied. The transformed cells were fibroblastic. Two types of transformed clones were isolated with respect to virus release: one releasing virus immunologically similar to MSV-H, and the other releasing no virus detectable by infectivity or 3H-uridine labeling. The nonproducer transformed cells developed into sarcomas in newborn Sprague-Dawley rats.

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