title: [Significance of Id4 gene methylation in monitoring efficacy of allo-PBSCT for treatment of acute leukemias].
abstract: This study was purposed to investigate the significance of Id4 gene methylation in monitoring the efficacy of allo-PBSCT for treatment of acute leukemias. MS-PCR method was used to detect Id4 gene methylation in bone marrow samples from 29 patients with acute leukemia before and at 1, 3, 6 and 12 months after allo-PBSCT. The results showed that the Id4 gene was methylated in 18 patients before allo-PBSCT, out of which Id4 gene methylation in 8 patients could be detected sustainedly after allo-PBSCT, whereas among remaining 11 patients with Id4 gene unmethylation before PBSCT, the Id4 gene of only one case was found to be methylated after PBSCT. Out of 9 patients with Id4 gene methylation after allo-PBSCT, 4 had relapse during the follow-up. 20 patients with Id4 gene unmethylation after allo-PBSCT were in continuously complete remission status. Id4 gene methylation was found more frequently between 6 months and 1 year after allo-PBSCT. It is concluded that detecting Id4 gene methylation is important for the AL patients who underwent allo-PBSCT. Choosing the patients with Id4 gene unmethylaiton to receive allo-PBSCT may help to reduce relapse rate. After allo-PBSCT, Id4 gene methylation status can be regarded as an indicator for predicting prognosis of acute leukemias.
authors.affiliation: Department of Hematology, PLA General Hospital, Beijing 100853, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Zhao
authors.forename: Hong-Hua
authors.initials: HH
authors.lastname: Li
authors.forename: Jian
authors.initials: J
authors.lastname: Bo
authors.forename: Yu
authors.initials: Y
authors.lastname: Jing
authors.forename: Chun-Ji
authors.initials: CJ
authors.lastname: Gao
authors.forename: Quan-Shun
authors.initials: QS
authors.lastname: Wang
authors.forename: Li
authors.initials: L
authors.lastname: Yu
mesh_terms: D000328:Adult; D019175:DNA Methylation; D005260:Female; D006801:Humans; D051796:Inhibitor of Differentiation Proteins / Q000235:genetics*; D007938:Leukemia / Q000235:genetics* / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D036102:Peripheral Blood Stem Cell Transplantation / Q000379:methods*; D055815:Young Adult
chemical_list: C490128:ID4 protein, human; D051796:Inhibitor of Differentiation Proteins