title: [Clinical studies on expressions of Fas and mdr-1 in acute leukemia and their correlations].
abstract: To explore the Fas and mdr-1 expression and their correlation in multidrug resistance (MDR), Fas and mdr-1 expressions of bone marrow from 59 patients with newly diagnosed AL before therapy and after complete remission were detected by direct immunofluorescence with flow cytometry and semi-quantitative RT-PCR, respectively. The results showed that in newly diagnosed AL patients, Fas expression in AML was higher than in ALL (P < 0.05), mdr-1 expression in AML and ALL had no difference (P > 0.05), the expressions of Fas and mdr-1 had correlation (r = -0.282, P < 0.05) in AL; the results of simple-variable and multivariable COX survival factor model analysis suggested that Fas and mdr-1 expressions were prognostic factors for the effect of therapy and survival. Log rank test, comparing the groups of Fas(+) with Fas(-), mdr-1(+) with mdr-1(-), demonstrated that the CR rates and median remission time of every two groups had significant difference. It is concluded that in AL, Fas and mdr-1 expressions have high correlation with the effect of treatment, Fas expression probably is one of the favorable prognostic factors, mdr-1 is an unfavorable prognostic and less effective factor.
authors.affiliation: Department of Hematology, The Second Hospital of Shanxi Medical University, Taiyuan 030001, China.
authors.forename: Fang
authors.initials: F
authors.lastname: Ye
authors.forename: Zhen-Hua
authors.initials: ZH
authors.lastname: Qiao
authors.forename: Li-Ping
authors.initials: LP
authors.lastname: Su
authors.forename: Liang-Ming
authors.initials: LM
authors.lastname: Ma
authors.forename: Lei
authors.initials: L
authors.lastname: Zhu
authors.forename: Li
authors.initials: L
authors.lastname: Zhang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D018432:Drug Resistance, Multiple; D019008:Drug Resistance, Neoplasm; D019450:Genes, MDR; D006801:Humans; D015470:Leukemia, Myeloid, Acute / Q000188:drug therapy* / Q000378:metabolism / Q000401:mortality; D008875:Middle Aged; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma / Q000188:drug therapy* / Q000378:metabolism / Q000401:mortality; D012333:RNA, Messenger / Q000032:analysis; D019014:fas Receptor / Q000032:analysis*
chemical_list: D012333:RNA, Messenger; D019014:fas Receptor