首页|Decreased blood riboflavin levels are correlated with defective expression of RFT2 gene in gastric cancer

Decreased blood riboflavin levels are correlated with defective expression of RFT2 gene in gastric cancer

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AIM:To investigate the relationship between blood riboflavin levels and riboflavin transporter 2 (RFT2) gene expression in gastric carcinoma (GC) development.METHODS:High-performance liquid chromatography was used to detect blood riboflavin levels in patients with GC.Real-time fluorogenic quantitative polymerase chain reaction and immunohistochemistry were used to analyze the expression of RFT2 mRNA and protein in samples from 60 GC patients consisting of both tumor and normal tissue.RESULTS:A significant decrease in the RFT2 mRNA levels was detected in GC samples compared with those in the normal mucous membrane (0.398 ± 0.149 vs 1.479 ± 0.587; P =0.040).Tumors exhibited low RFT2 protein expression (75%,16.7%,8.3% and 0%for no RFT2 staining,weak staining,medium staining and strong staining,respectively),which was significantly lower than that in the normal mucous membrane (10%,16.7%,26.7% and 46.7% for no RFT2 staining,weak staining,medium staining and strong staining,respectively; P < 0.05).Tumors with low RFT2 expression were significantly associated with tumor stage and histological grade.Moreover,a significantly decrease in Uyghur patients was observed compared with Han patients.However,other parameters-gender,tumor location and lymph node metastasis-showed no significant relationship with RFT2 expression.Blood riboflavin levels were reverse correlated with development of GC (1.2000 ± 0.97 569 ng/mL in high tumor stage patients vs 2.5980 ± 1.31 129 ng/mL in low tumor stage patients; P < 0.05).A positive correlation of plasma riboflavin levels with defective expression of RFT2 protein was found in GC patients (x2 =2.619; P =0.019).CONCLUSION:Defective expression of RFT2 is associated with the development of GC and this may represent a mechanism underlying the decreased plasma riboflavin levels in GC.

Gastric carcinomaRiboflavin transporter 2 geneRiboflavinPrognosisHigh-performance liquid chromatography

Maynur Eli、De-Sheng Li、Wei-Wei Zhang、Bing Kong、Chen-Song Du、Maimaitiaili Wumar、Batur Mamtimin、Ilyar Sheyhidin、Ayshamgul Hasim

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Department of Oncology, the First Affiliated Hospital, Medical University of Xinjiang, Urumqi 830054, Xinjiang Uygur Autonomous Region, China

Department of Thoracic Surgery,the First Affiliated Hospital, Medical University of Xinjiang,Urumqi 830054, Xinjiang Uygur Autonomous Region, China

Centers of Pharmaceutical Analysis, College of Pharmacy, Medical University of Xinjiang,Urumqi 830011, Xinjiang Uygur Autonomous Region, China

Department of Pathology, College of Basic Medicine, Medical University of Xinjiang, Urumqi 830011, Xinjiang Uygur Autonomous Region, China

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国家自然科学基金

81160459

2012

世界胃肠病学杂志(英文版)
太原消化病研治中心

世界胃肠病学杂志(英文版)

SCI
影响因子:1.001
ISSN:1007-9327
年,卷(期):2012.18(24)
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