Transforming Growth Factor-B in Cancer Therapy, Volume II: Cancer Treatment and Therapy The chapters in this volume confer an abundance of knowledge about the current state ofour understanding oftransforming growth factor-B (TGF-B) in cancer treatment and therapy. Unlike several more traditional positive polypeptide growth factors that stim ulate cellular proliferation, the prototypical TGF-B is now known to inhibit the growth of most normal cell types, including those of epithelial and mesenchymal origin. However, there are examplesofcell types that can be stimulated by TGF-B under certain...