~50% of colorectal cancers with microsatellite instability show frameshift mutations in TCF7L2 that result in the loss of the CTBP-binding region (Duval et al, 1999; Cuillliere-Dartigues et al, 2006). These cancer cells show decreased colocalization of CTBP and TCF7L2 and have increased expression of a TCF-dependent reporter gene (Cuilliere-Dartigues et al, 2006).
Duval, A, El-Bchiri, J, Cuilliere-Dartigues, P, Hamelin, R, Fontanges, P, Buhard, O, Fléjou, JF, Krimi, A
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