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Review

Nature Reviews Cancer 7, 925–936 (1 December 2007) | doi:10.1038/nrc2251

CHK2 kinase: cancer susceptibility and cancer therapy |[ndash]| two sides of the same coin?

Laurent Antoni , Nayanta Sodha , Ian Collins & Michelle D. Garrett

In the past decade, CHK2 has emerged as an important multifunctional player in the DNA-damage response signalling pathway. Parallel studies of the human CHEK2 gene have also highlighted its role as a candidate multiorgan tumour susceptibility gene rather than a highly penetrant predisposition gene for Li–Fraumeni syndrome. As discussed here, our current understanding of CHK2 function in tumour cells, in both a biological and genetic context, suggests that targeted modulation of the active kinase or exploitation of its loss in tumours could prove to be effective anti-cancer strategies.