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Medline ® Abstract for Reference 95

of '慢性髓系白血病的细胞和分子生物学'

95
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Late-appearing Philadelphia chromosome in two patients with chronic myelogenous leukemia.
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Lisker R, Casas L, Mutchinick O, Pérez-Chávez F, Labardini J
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Blood. 1980;56(5):812.
 
We describe two patients with typical myelogenous leukemia, who at the beginning of the disease lacked the Philadelphia chromosome in bone marrow cells, and 90 and 42 days later, respectively, its presence was shown in all cells analyzed from that tissue. These findings are compatible with the possibility that at least occasionally Ph1 occurs secondarily in already leukemic cells. The rapid change form Ph1- to Ph1+ CML in one of the patients (42 days), suggests the possibility that in addition to Ph1+ cells enjoying marked selective advantage, this change is induced simultaneously in multiple bone marrow cells.
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PMID