Expression in rat fibroblasts of a human transforming growth factor-alpha cDNA results in transformation - PubMed (original) (raw)
Expression in rat fibroblasts of a human transforming growth factor-alpha cDNA results in transformation
A Rosenthal et al. Cell. 1986.
Abstract
Acquisition of the ability to produce and respond to a growth factor may result in increased cellular proliferation and could lead to malignant transformation. The fact that a large variety of tumor cells secrete transforming growth factor-alpha (TGF-alpha) suggests involvement of TGF-alpha in cellular transformation and provides supporting evidence for the autocrine stimulation model. In order to determine directly the role of TGF-alpha in tumorigenicity, we introduced a human TGF-alpha cDNA expression vector into established nontransformed Fischer rat fibroblast (Rat-1) cells. Synthesis and secretion of human TGF-alpha by these cells results in the loss of anchorage-dependent growth and induces tumor formation in nude mice. Anti-human TGF-alpha monoclonal antibodies prevent TGF-alpha expressing Rat-1 cells from forming colonies in soft agar.
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