DNA topoisomerases and the DNA lesion in human genetic instability syndromes.

Abstract excerpt

Genetically determined chromosomal instability entails, among other sequelae, a condition of elevated cancer risk. Patients with the autosomal recessive disorder Fanconi's anemia (FA) often develop leukemias of the monocytic lineage together with pancytopenia, whereas the Bloom's syndrome (BS) mutation confers an early and elevated incidence of neoplasia of no particular type. Cultured cells from FA patients show...

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