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Pedican
Pediatric cancer database
General information | Literature | Expression | Regulation | Mutation | Interaction

Basic Information

Gene ID

7298

Name

TYMS

Synonymous

HST422|TMS|TS;thymidylate synthetase;TYMS;thymidylate synthetase

Definition

TSase|thymidylate synthase

Position

18p11.32

Gene type

protein-coding

Cancer type

Abstract

acute lymphoblastic leukemia;Hematological

Acute lymphoblastic leukemia (ALL) is the most common pediatric cancer. Genetic polymorphisms in the folate metabolic pathway may contribute to the susceptibility to childhood ALL because they affect the DNA synthesis, methylation and repair. We analysed common genetic polymorphisms of 5,10-methylenetetrahydrofolate reductase (MTHFR), thymidylate synthase (TS), methionine synthase (MS) and methionine synthase reductase (MTRR) in 68 childrenwith ALL and 258 healthy controls to investigate their influence on the risk forALL. No significant differences in frequencies of separate polymorphisms were observed between both groups. Combined MTHFR 677CT/TT and MS 2756AG/GG genotypesshowed a nonsignificant tendency to reduce the risk for ALL 2.24-fold (CI: 0.191- 1.037, P: 0.061). The risk was significantly reduced in carriers of combined MTHFR 677CT/TT, MS 2756AG/GG and MTRR 66AG/GG genotypes (OR: 0.312; CI: 0.107 - 0.907; P: 0.032). Our results suggest that gene - gene interactions that may decrease the methylation capacity might have a protective effect on the risk forchildhood ALL.

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