采用ELIS法检测了18例骨髓增生异常综合证(MDS)和42例急性白血病(AL)患者血清sFas受体水平.结果发现,与正常对照组比较,MDS-RA患者血清sFas受体水平显著降低(2.89±1.72ng/ml vs 6.29±1.07ng/ml,P<0.01),而MDS-RAEB/RAEB-t(...采用ELIS法检测了18例骨髓增生异常综合证(MDS)和42例急性白血病(AL)患者血清sFas受体水平.结果发现,与正常对照组比较,MDS-RA患者血清sFas受体水平显著降低(2.89±1.72ng/ml vs 6.29±1.07ng/ml,P<0.01),而MDS-RAEB/RAEB-t(9.75±2.28ng/ml/19.98±5.24ng/ml)、难治性AL(10.86±3.05ng/ml)和慢性粒细胞白血病急粒变(9.44±4.14ng/ml)均显著升高(P<0.01).提示血清SFas受体与MDS分型、转化和AL的化疗疗效或耐药性密切相关.展开更多
Genotype of IgH, TCRγ and TCR δ gene rearrangement in 42 cases of malignant lymphoproliferative disorders were studied by using polymerase chain reaction (PCR) technique. The results suggested that among the 23 case...Genotype of IgH, TCRγ and TCR δ gene rearrangement in 42 cases of malignant lymphoproliferative disorders were studied by using polymerase chain reaction (PCR) technique. The results suggested that among the 23 cases, in which malignant cells expressed B-lineage cell surface markers, 20 showed IgH gene rearrangement and 11 had TCRγ gene rearrangement and / or TCRδ gene deletion. All the 11 cases expressed T-lineage cell differentiation antigens were found to have TCRγand TCRδ gene rearrangement or deletion and only one had IgH gene rearrangement. Double rearrangements of IgH and TCRγ genes were detected in all the 3 cases of T and B double-phenotype ALL. In the cases malignant cells did not express any lineage specific antigens while 4/5 had TCRγ gene rearrangement but all failed in IgH gene rearrangement. The relation of cellular differentiation origin and rearrangement of antigen receptor genes with clinical manifestations was discussed.展开更多
文摘采用ELIS法检测了18例骨髓增生异常综合证(MDS)和42例急性白血病(AL)患者血清sFas受体水平.结果发现,与正常对照组比较,MDS-RA患者血清sFas受体水平显著降低(2.89±1.72ng/ml vs 6.29±1.07ng/ml,P<0.01),而MDS-RAEB/RAEB-t(9.75±2.28ng/ml/19.98±5.24ng/ml)、难治性AL(10.86±3.05ng/ml)和慢性粒细胞白血病急粒变(9.44±4.14ng/ml)均显著升高(P<0.01).提示血清SFas受体与MDS分型、转化和AL的化疗疗效或耐药性密切相关.
文摘Genotype of IgH, TCRγ and TCR δ gene rearrangement in 42 cases of malignant lymphoproliferative disorders were studied by using polymerase chain reaction (PCR) technique. The results suggested that among the 23 cases, in which malignant cells expressed B-lineage cell surface markers, 20 showed IgH gene rearrangement and 11 had TCRγ gene rearrangement and / or TCRδ gene deletion. All the 11 cases expressed T-lineage cell differentiation antigens were found to have TCRγand TCRδ gene rearrangement or deletion and only one had IgH gene rearrangement. Double rearrangements of IgH and TCRγ genes were detected in all the 3 cases of T and B double-phenotype ALL. In the cases malignant cells did not express any lineage specific antigens while 4/5 had TCRγ gene rearrangement but all failed in IgH gene rearrangement. The relation of cellular differentiation origin and rearrangement of antigen receptor genes with clinical manifestations was discussed.
