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کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Asian Pacific Journal of Cancer Prevention
- نوع مقاله: Journal Article
- کلمات کلیدی: Genotype,Squamous Cell Carcinoma,Head and neck,XRCC1
- چکیده:
- چکیده انگلیسی: Background and objective: X-ray repair cross-complementing group1 (XRCC1) is a key protein in base excision repair and closely associated with the coordination of the base excision repair pathway. Many studies have focused on XRCC1 SNPs and have shown an associated between these SNPs and the risk of several types of cancers, including head and neck cancer. There are many single nucleotide polymorphisms XRCC1 gene (SNPs) and the most common SNP that result in amino acid substitutions is exon 10 (Arg399Gln). This study aimed to investigate the association between Arg399Gln SNP and the risk of squamous cell carcinoma of the head and neck. Material and method: Ninety nine patients with squamous cell carcinomas of the head and neck and 89 healthy adult controls were enrolled in this study. The Arg399Gln in XRCC1 allele was genotyped using polymerase chain reaction-restriction fragment length polymorphism method. Results: In the single-locus analyses, Arg399Gln SNP showed a significant association with head and neck cancer risk (p value = 0.016 and odd ratio of 1.8). On the genotype level, we applied three analysis models, namely co-dominant, dominant, and recessive genotypes. Arg/Arg homozygous major genotype was significantly (p value <0.05) associated with head and neck squamous cell carcinoma incidence with odd ratio of 2.23 and 2.24 for the co-dominant and recessive models, respectively. Conclusion: The findings indicated that Arg399Gln allele was associated with squamous cell carcinoma of the head and neck among Jordanian patients. This allele might be used as a genetic biomarker of squamous cell carcinoma of the head and neck.
- انتشار مقاله: 15-07-1398
- نویسندگان: Ammar Sobiahe,Eman Hijazi,Hamzeh J Al-Ameer,Yazan Almasri,Yazun Jarrar,Malek Zihlif,Maha Shomaf,Baeth Al-Rawashdeh
- مشاهده
- جایگاه : پژوهشی
- مجله: Asian Pacific Journal of Cancer Prevention
- نوع مقاله: Journal Article
- کلمات کلیدی: genetic variants,NUDT15,Jordanians,Metabolism
- چکیده:
- چکیده انگلیسی: Background: Nudix Hydrolase 15 gene (NUDT15) encodes nucleotide triphosphate diphosphatase which metabolizes
the purine analog drugs, such as anticancer thiopurine and anti-gout allopurinol. Genetic variants on Nudix Hydrolase
15 gene (NUDT15) gene effects the drug’s hydrolyses and hence increases the susceptibility to drug-induced toxicity.
The NUDT15 gene has been genotyped in various ethnic groups, however, it has not been genotyped among the
Middle Eastern Arab Jordanian population. Aim: The current study aimed to identify NUDT15 genetic variants among
Jordanian Arab population. Method: The DNA samples were isolated from leukocytes of 85 unrelated Jordanian
Arab volunteers. The coding regions of NUDT15 gene; Exon 1,2 and 3, in addition to some regions of intron 1,2 and
3’UTR, were amplified using polymerase chain reaction (PCR). the PCR products were then subjected to purification
and sequenced using Applied Biosystems Model (ABI3730x1). Results: Six NUDT15 genetic variants were found
among the volunteers.The results were as followed: A novel synonymous variant 36A>G on exon 1 (6%, 95%CI=
3- 9%), the intronic IVS1 +116C>T variant on intron 1 (0.6%, 95%CI= 0-2%), the non-synonymous variant on exon
3; 415C>T (0.6%, 95%CI= 0-2%), A novel non-synonymous variant on exon 3; 404C>A (0.6%, 95%CI= 0-2%) , and
two novel variants on 3’UTR ;502G>A (2%, 95%CI= 0.5-4%) and 588T>C (0.6%, 95%CI= 0-2%). NUDT15 36A>G
wasfound to be the most common allele among Jordanians was. In silico softwares predicted that the novel NUDT15
404C>A was harmful and affected NUDT15 enzyme’sstability and function. Furthermore, the frequency of NUDT15
IVS1 +116C>T , among Jordanians, showed to be significantly lower from what was reported in other ethnicities with
ap value > 0.05 on the other hand, the frequency of 415C>T variant showed to be similar to Europeans in contrast to
Asians and Indians that showed to be significantly lower (p value > 0.05). Conclusions: The frequency of NUDT15
genetic variants is low among the Jordanian volunteers and significantly lower than other ethnic groups. The findings of
this study may increase our understanding of the inter-individual variation in the response to purine analog drugs. Further
clinical studies are needed to investigate the influence of novel NUDT15 404C>A on drug metabolism and response.- انتشار مقاله: 08-05-1397
- نویسندگان: Yazun Bashir Jarrar,Maria Ghishan
- مشاهده