title: The role of transforming growth factor-beta-mediated tumor-stroma interactions in prostate cancer progression: an integrative approach.
abstract: We have implemented a hybrid cellular automata model based on the structure of human prostate that recapitulates key interactions in nascent tumor foci between tumor cells and adjacent stroma. Model simulations show how stochastic interactions between tumor cells and stroma may lead to a structural suppression of tumor growth, modest proliferation, or unopposed tumor growth. The model incorporates key aspects of prostate tumor progression, including transforming growth factor-beta (TGF-beta), matrix-degrading enzyme activity, and stromal activation. It also examines the importance of TGF-beta during tumor progression and the role of stromal cell density in regulating tumor growth. The validity of one of the key predictions of the model about the effect of epithelial TGF-beta production on glandular stability was tested in vivo. These experimental results confirmed the ability of the model to generate testable biological predictions in addition to providing new avenues of experimental interest. This work underscores the need for more pathologically representative models to cooperatively drive computational and biological modeling, which together could eventually lead to more accurate diagnoses and treatments of prostate cancer.
authors.affiliation: Integrated Mathematical Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida 33612, USA. david.basanta@moffitt.org
authors.forename: David
authors.initials: D
authors.lastname: Basanta
authors.forename: Douglas W
authors.initials: DW
authors.lastname: Strand
authors.forename: Ralf B
authors.initials: RB
authors.lastname: Lukner
authors.forename: Omar E
authors.initials: OE
authors.lastname: Franco
authors.forename: David E
authors.initials: DE
authors.lastname: Cliffel
authors.forename: Gustavo E
authors.initials: GE
authors.lastname: Ayala
authors.forename: Simon W
authors.initials: SW
authors.lastname: Hayward
authors.forename: Alexander R A
authors.initials: AR
authors.lastname: Anderson
mesh_terms: D000818:Animals; D002448:Cell Adhesion; D002450:Cell Communication; D002465:Cell Movement; D049109:Cell Proliferation; D018450:Disease Progression; D006801:Humans; D008297:Male; D051379:Mice; D008954:Models, Biological; D011467:Prostate / Q000473:pathology; D011471:Prostatic Neoplasms / Q000378:metabolism / Q000473:pathology*; D017154:Stromal Cells / Q000473:pathology*; D016212:Transforming Growth Factor beta / Q000378:metabolism*
chemical_list: D016212:Transforming Growth Factor beta
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