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Analysis of the expression pattern of the BCL11B gene and its relatives in patients with T-cell acute lymphoblastic
Xin Huang1, Shaohua Chen, Qi Shen
1Institute of Hematology, Medical College, Jinan University, and Department of Hematology, Guangdong General Hospital, Guangzhou, 510632, PR China.
Background:
In a human T-cell acute lymphoblastic leukemia (T-ALL) cell line (Molt-4), siRNA-mediated suppression of BCL11B expression was shown to inhibit proliferation and induce apoptosis, functions which may be related to genes involved in apoptosis (such as TNFSF10 and BCL2L1) and TGF-β pathways (such as SPP1and CREBBP).
Methods:
The expression levels of the above mentioned genes and their correlation with the BCL11B gene were analyzed in patients with T-ALL using the TaqMan and SYBR Green I real-time polymerase chain reaction technique.
Results:
Expression levels of BCL11B, BCL2L1, and CREBBP mRNA in T-ALL patients were significantly higher than those from healthy controls (P<0.05). In T-ALL patients, the BCL11B expression level was negatively correlated with the BCL2L1 expression level (rs=-0.700; P<0.05), and positively correlated with the SPP1 expression level (rs=0.683; P<0.05). In healthy controls, the BCL11B expression level did not correlate with the TNFSF10, BCL2L1, SPP1, or CREBBP expression levels.
Conclusions:
Over-expression of BCL11B might play a role in anti-apoptosis in T-ALL cells through up-regulation of its downstream genes BCL2L1 and CREBBP.
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