Association between C-myc and K-ras gene polymorphisms and non-Hodgkin lymphoma.

Q-H Liu, X-D Li, M-Y Song,R-N Ran,Z-S Wu, B-X Yang,H Wang,R-X Xia

EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES(2020)

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摘要
OBJECTIVE:To explore the association between c-myc and K-ras gene polymorphisms and non-Hodgkin lymphoma (NHL). PATIENTS AND METHODS:A total of 200 NHL patients in our hospital in the past 3 years were collected as disease group, while 200 healthy people were taken as control group. The genomic deoxyribonucleic acid (DNA) in the peripheral blood was extracted in both groups, amplified via Polymerase Chain Reaction (PCR) and sent to the company for the detection of c-myc and K-ras gene polymorphisms. The expressions of c-myc and K-ras were detected via Reverse Transcription-quantitative PCR (RT-qPCR), and the levels of clinical indexes hemoglobin (Hb), platelet (PLT) and lactate dehydrogenase (LDH) were determined in the Laboratory Department. RESULTS:The allele distribution at c-myc gene locus rs121918684 was different between control group and disease group (p=0.000), and the G allele frequency was 202 (0.505) in the control group and 263 (0.657) in the disease group. In the disease group, the GG genotype frequency at c-myc gene locus rs121918684 [97 (0.485)], the CC genotype frequency at rs775522201 [98 (0.490)], and the GA genotype frequency at K-ras gene locus rs1137188 [127 (0.635)] were all significantly higher than those in the control group (p=0.000, p=0.002, p=0.011). In the disease group, the frequency of recessive model GC+CC (p=0.003), heterozygous model GC (p=0.035), and homozygous model CC (p=0.037) at c-myc gene locus rs121918684 was significantly lower than that in the control group, and the frequency of recessive model CT+TT (p=0.046) at c-myc gene locus rs775522201 was also markedly lower than that in the control group. The haplotype frequency of c-myc CC (p=0.000), GC (p=0.000), and GT (p=0.018) in the disease group was different from that in the control group. Moreover, the CT genotype at c-myc gene locus rs775522201 was remarkably correlated with the c-myc gene expression, and the gene expression was markedly increased in the disease group. The TT genotype at K-ras gene locus rs12245 was correlated with the K-ras gene expression, and the gene expression was notably increased in the disease group. There was an association between GG genotype at c-myc gene locus rs121918684 and LDH level (p=0.000), between CT genotype at c-myc gene locus rs775522201 and PLT level (p=0.002), and between AA genotype at K-ras gene locus rs1137188 and Hb level (p=0.003). CONCLUSIONS:The c-myc and K-ras gene polymorphisms are associated with susceptibility to NHL, gene expression and levels of Hb, PLT, and LDH.
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关键词
Non-Hodgkin lymphoma,C-myc gene,K-ras gene,Gene polymorphism
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