Title : Mismatch repair system decreases cell survival by stabilizing the tetraploid G1 arrest in response to SN-38.

Pub. Date : 2010 Jun 15

PMID : 19739070






1 Functional Relationships(s)
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1 By using hMLH1 expressing clones or cells transduced with the hMLH1-expressing adenovirus as well as siRNA technology, we show that in response to SN-38-induced DNA damage the MMR proficient (MMR(+)) cells make: (i) a stronger G2/M arrest, (ii) a subsequent longer tetraploid G1 arrest, (iii) a stronger activation of Chk1 and Chk2 kinases than the MMR deficient (MMR(-)) counterparts. Irinotecan checkpoint kinase 1 Homo sapiens