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Adams PD , Enders GH
Wnt-signaling and senescence: A tug of war in early neoplasia?
Cancer Biol Ther. 2008 Nov;7(11) :1706-11
PMID: 18836285 PMCID: PMC2783518
AbstractStudies of early neoplasia have revealed fundamental molecular pathways that drive tumorigenesis. Despite this progress, synthesis of principles of tumorigenesis that span tissue types has lagged. Such forays into the 'comparative anatomy' of cancer can stimulate new models and refine key questions. We envision commonality of pathways important in formation of two early benign neoplasms that are found in different tissues and which are not generally thought to be similar: dysplastic nevi of the skin and intestinal aberrant crypt foci. We propose that these neoplasms result from an ongoing 'tug of war' between the tumor suppression barrier posed by cellular senescence and the tumor-promoting activity of Wnt-signaling. Whether or not such neoplasms progress to malignancy or persist in a benign state for many years might be largely determined by the outcome of this tug of war and its modulation by other genetic and epigenetic alterations, such as inactivation of p16(INK4a).
NotesAdams, Peter D Enders, Greg H P01 AG031862/AG/NIA NIH HHS/United States P01 AG031862-010002/AG/NIA NIH HHS/United States R01 CA129334-01A1/CA/NCI NIH HHS/United States R01 DK064758-06/DK/NIDDK NIH HHS/United States R01 DK64758/DK/NIDDK NIH HHS/United States R01 GM062281/GM/NIGMS NIH HHS/United States R01 GM062281-08/GM/NIGMS NIH HHS/United States R01CA129334-01/CA/NCI NIH HHS/United States Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't Review United States Cancer biology & therapy Cancer Biol Ther. 2008 Nov;7(11):1706-11. Epub 2008 Nov 7.