The evolution of malignant and reactive γδ + T cell clones in a relapse T-ALL case after allogeneic stem cell transplantation.
The evolution of malignant and reactive γδ + T cell clones in a relapse T-ALL case after allogeneic stem cell transplantation.
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DOI:
10.1186/1476-4598-12-73
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发表时间:
2013-07-12
期刊:
影响因子:
37.3
通讯作者:
Li Y
中科院分区:
文献类型:
--
作者:
Chen S;Huang X;Zheng H;Geng S;Wu X;Yang L;Weng J;Du X;Li Y
To improve the outcome of patients with T-cell acute lymphoblastic leukemia (T-ALL), characterization of the biological features of T-ALL blast cells and the immune status of patients with T-ALL is needed to identify specific therapeutic strategies. Using a novel approach based on the combination of fine-tiling comparative genomic hybridization (FT-CGH) and ligation-mediated PCR (LM-PCR), we molecularly identified a malignant γδ + T cell clone with a Vδ5Dδ2Jδ1 rearrangement that was paired with a T cell receptor (TCR) VγI and comprised a Vγ1Vδ5 T cell clone in a relapse T-ALL patient. This malignant Vδ5 T cell clone disappeared after chemotherapy, but the clone was detected again when disease relapsed post allogeneic hematopoietic stem cell transplantation (allo-HSCT) at 100 weeks. Using PCR and GeneScan analyses, the distribution and clonality of the TCR Vγ and Vδ subfamilies were examined before and after allo-HSCT in the patient. A reactive T cell clone with a Vδ4Dδ3Jδ1 rearrangement was identified in all samples taken at different time points (i.e., 4, 8, 68, 100 and 108 weeks after allo-HSCT). The expression of this Vδ4+ T cell clone was higher in the patient during complete remission (CR) post allo-HSCT and at disease relapse. This study established a sensitive methodology to detect T cell subclones, which may be used to monitor minimal residual disease and immune reconstitution.
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影响因子:
28.5
作者:
Lv M;Huang XJ
通讯作者:
Huang XJ
影响因子:
10.9
作者:
Huang X;Du X;Li Y
通讯作者:
Li Y
影响因子:
30.5
作者:
Kessels, HWHG;Wolkers, MC;Schumacher, TNM
通讯作者:
Schumacher, TNM
影响因子:
3.1
作者:
Przybylski, Grzegorz K.;Dittmann, Kathleen;Schmidt, Christian A.
通讯作者:
Schmidt, Christian A.
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1.5
作者:
Li, Yangqiu;Chen, Shaohua;Cai, Dongqing
通讯作者:
Cai, Dongqing