Specific induction of uncoiling in NORs of human acrocentric chromosomes by 5-azacytidine and 5-azadeoxicytidine.


The organization of rDNA-containing chromatin was analysed by transmission electron microscopy after treatment of cultured human lymphocytes with 5-azacytidine (ACR) or 5-azadeoxicytidine (AdCR). The number of observed acrocentric chromosomes with satellites was significantly increased after treatment with low doses of ACR or AdCR during the last 24 h of… (More)


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