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Association of TLX1 gene polymorphisms with the risk of acute lymphoblastic leukemia and B lineage acute lymphoblastic leukemia in Han Chinese children.


ABSTRACT: BACKGROUND:Studies on gene polymorphism association are centered on childhood acute lymphoblastic leukemia (ALL), a common hematological malignancy in children younger than 16 years. Single-nucleotide polymorphisms (SNPs) in some genes, such as ARID5B and CDKN2B, are associated with the risk of childhood ALL. T-cell leukemia homeobox 1 (TLX1), a member of the HOX gene family, was identified based on its abnormal expression in T-lineage leukemia. This study aimed to determine whether TLX1 is associated with B-ALL and which SNP plays a significant role in ALL. METHODS:A total of 217 cases of ALL and 241 controls were included in this study. Six tag SNPs (rs75329544, rs946328, rs12415670, rs2075879, rs17113735, and rs1051723) were selected, and genotyping was carried out on Sequenom MassARRAY platform. RESULTS:Rs17113735 was possibly the risk locus associated with increased risk for ALL, whereas rs946328 was possibly associated with decreased risk for ALL. Moreover, rs17113735 was likely to be the risk locus for B-cell ALL (B-ALL), and rs2075879 was associated with decreased risk for B-ALL (P < .05). All SNPs in the two sample types (ALL and B-ALL samples) demonstrated linkage disequilibrium except between rs75329544 and rs2075879. Haplotype analysis showed no significant difference between the cases and controls in the two sample types. CONCLUSION:TLX1 gene polymorphisms are associated with ALL (rs17113735 and rs946328) and possibly play a significant role in B-ALL (rs17113735 and rs2075879). This work provides a reference for the diagnosis and therapy of this disease.

SUBMITTER: Mei E 

PROVIDER: S-EPMC7521250 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature

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Association of TLX1 gene polymorphisms with the risk of acute lymphoblastic leukemia and B lineage acute lymphoblastic leukemia in Han Chinese children.

Mei Endian E   Wei Xubin X   Gao Jiadong J   Tian Xiaolong X   Li Wei W   Liu Li L   Qian Cheng C  

Journal of clinical laboratory analysis 20200602 9


<h4>Background</h4>Studies on gene polymorphism association are centered on childhood acute lymphoblastic leukemia (ALL), a common hematological malignancy in children younger than 16 years. Single-nucleotide polymorphisms (SNPs) in some genes, such as ARID5B and CDKN2B, are associated with the risk of childhood ALL. T-cell leukemia homeobox 1 (TLX1), a member of the HOX gene family, was identified based on its abnormal expression in T-lineage leukemia. This study aimed to determine whether TLX1  ...[more]

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