Publication Type:
Journal ArticleSource:
Int J Dev Biol, Volume 42, Issue 7, p.995-1002 (1998)Keywords:
Animals, Apoptosis, Cell Division, Cell Transformation, Neoplastic, Disease Models, Animal, Disease Progression, Humans, Mice, Mice, Knockout, Mice, Transgenic, Neoplasms, Neoplasms, Experimental, Neovascularization, PathologicAbstract:
<p>The epidemiology and histopathology of human cancers and studies of animal models of tumorigenesis have led to a widely-accepted notion that multiple genetic and epigenetic changes have to accrue for the successful development of a malignant phenotype. Tumor growth and expansion requires an ability not only to proliferate, but also to down-modulate cell death (apoptosis) and activate angiogenesis to produce a tumor neovasculature. This review will describe the interplay between apoptosis and proliferation, as well as the characteristics of the angiogenic phenotype in two transgenic mouse models of multi-step tumorigenesis, namely, pancreatic islet cell carcinomas and squamous cell carcinomas of the skin.</p>