2014
DOI: 10.1016/b978-0-12-800249-0.00008-1
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Genetically Engineered Mice as Experimental Tools to Dissect the Critical Events in Breast Cancer

Abstract: Elucidating the mechanism of pathogenesis of breast cancer has greatly benefited from breakthrough advances in both genetically engineered mouse (GEM) models and xenograft transplantation technologies. The vast array of breast cancer mouse models currently available is testimony to the complexity of mammary tumorigenesis and attempts by investigators to accurately portray the heterogeneity and intricacies of this disease. Distinct molecular changes that drive various aspects of tumorigenesis, such as alteratio… Show more

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Cited by 28 publications
(24 citation statements)
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References 138 publications
(183 reference statements)
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“…Mechanisms of metastatic breast tumor progression are studied widely in two-dimensional (2D) cultures by exposing them to external stimulus like hypoxia and in xenograft models by manipulating various signaling pathways and molecular targets (2,3), which do not recapitulate natural events of breast tumor progression (4,5). Cells in 2D monolayers lack microenvironmental context, cell-cell contacts in 3D, integrated cell signaling and cell-matrix interaction, making them physiologically different from the cells in solid tumors in vivo (4,5).…”
Section: Introductionmentioning
confidence: 99%
“…Mechanisms of metastatic breast tumor progression are studied widely in two-dimensional (2D) cultures by exposing them to external stimulus like hypoxia and in xenograft models by manipulating various signaling pathways and molecular targets (2,3), which do not recapitulate natural events of breast tumor progression (4,5). Cells in 2D monolayers lack microenvironmental context, cell-cell contacts in 3D, integrated cell signaling and cell-matrix interaction, making them physiologically different from the cells in solid tumors in vivo (4,5).…”
Section: Introductionmentioning
confidence: 99%
“…Since then, derivative approaches are now able to model metastasis due to expression of co-operating oncogenes (Sinn et al, 1987;Guy et al, 1992;Podsypanina et al, 2008;Adams et al, 2011) and assess mechanisms of pathway perturbation including TGF-b and WNT (Pierce et al, 1995;Li et al, 2000). The introduction of conditional and inducible systems to drive the expression of transgenes has enabled these models to be further refined (Sandgren et al, 1995;Moody et al, 2002;Podsypanina et al, 2008;Menezes et al, 2014;Rutkowski et al, 2014), including a model in mice of invasive lobular breast cancer created using CRISPR/Cas9-mediated disruption of PTEN (Annunziato et al, 2016).…”
Section: Transcriptional Deregulation During the Initiation Of Breastmentioning
confidence: 99%
“…Several different in vivo models of metastasis have been developed to model human metastatic disease (Khanna & Hunter, 2005; Menezes et al, 2014). …”
Section: Preclinical In Vitro and In Vivo Models Of Metastasismentioning
confidence: 99%
“…Researchers have also developed genetically engineered or transgenic mouse models that spontaneously develop tumors and metastases (Menezes et al, 2014; Smith & Muller, 2013). In these models, the genetic makeup of the mouse is altered to either inhibit the expression of a tumor suppressor gene or overexpress an oncogene or combinations of the two, so that mice will spontaneously develop tumors and metastases over their normal lifespan, sometimes as rapidly as a couple of months (Eklund, Bry, & Alitalo, 2013; Fantozzi & Christofori, 2006; Husemann & Klein, 2009).…”
Section: Preclinical In Vitro and In Vivo Models Of Metastasismentioning
confidence: 99%