Expression and clinical significance of ID1 gene in acute myeloid leukemia / 中华血液学杂志

ABSTRACT

<p><b>OBJECTIVE</b>To explore the expression and clinical significance of ID1 gene in acute myeloid leukemia (AML) patients.</p><p><b>METHOD</b>Real-time quantitative PCR (RQ-PCR) was used to test the expression level of ID1 gene in 114 de novo adult AML patients, and the clinical features of these patients were analyzed.</p><p><b>RESULTS</b>ID1 gene transcript levels were detectable in BM mononuclear cells from 114 patients with AML, the median expression level of all samples was 8525 (range 57 - 11 233 238). There was a statistically significant difference on expression level of ID1 gene among the three different cytogenetic prognosis groups, and the poor prognosis group (median 36 840, range 336 - 11 233 238) harbored the significantly higher level of ID1 gene than the intermediate prognosis group (Median 6630, range 66 - 1 840 798) (P = 0.006). The expression level of ID1 gene was positively associated with older age (age ≥ 60 years vs < 60 years, P = 0.002) and higher WBC count (WBC ≥ 10×10(9)/L vs < 10×10(9)/L, P = 0.005). Young patients (age < 60 years) who were not obtained the complete remission (non-CR) after the first cycle of chemotherapy harbored the high level of ID1 gene (Median 9537 of non-CR vs 1268 of CR, P = 0.010).</p><p><b>CONCLUSIONS</b>High expression level of ID1 gene was mostly seen in AML patients with adverse cytogenetics and older age (age ≥ 60 years), and may be associated with poor prognosis of AML. ID1 gene might be a prognostic molecular marker of AML.</p>