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Premature termination of in vivo reprogramming leads to cancer development through altered epigenetic regulation [array]

ABSTRACT: We report a reprogrammable mouse system in which reprogramming factor expression in vivo can be controlled temporally by treatment with doxycycline (Dox). Transient expression of reprogramming factors in vivo results in tumor development in various tissues, consisting of undifferentiated dysplastic cells. We analyzed the kidney tumors developed in reprogrammable mice for global gene expressions and DNA methylations. Reprogrammable mice at 4 weeks of age were treated with Dox for 7 days followed by the withdrawal. Seven days after the withdrawal, kidney tumors were analyzed for gene expressions and DNA methylations with microarray and RRBS method, respectively. Normal kidney tissue at the same age and ES cells were analyzed as controls. To examine the early changes of gene expressions, transgene-expressing kidney cells were FACS sorted and they are utilized for microarray analysis. Primary liver tumors in reprogrammable mice and transplanted secondary kidney tumors in the subcutaneous tissues of immnodeficient mice were also analyzed for gene expressions.

ORGANISM(S): Mus musculus

SUBMITTER: Yasuhiro Yamada 

PROVIDER: E-GEOD-51786 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Cancer is believed to arise primarily through accumulation of genetic mutations. Although induced pluripotent stem cell (iPSC) generation does not require changes in genomic sequence, iPSCs acquire unlimited growth potential, a characteristic shared with cancer cells. Here, we describe a murine system in which reprogramming factor expression in vivo can be controlled temporally with doxycycline (Dox). Notably, transient expression of reprogramming factors in vivo results in tumor development in  ...[more]

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