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Total Antioxidant Status (TAS), Superoxide Dismutase (SOD), and Glutathione Peroxidase (GPx) in Oropharyngeal Cancer Associated with EBV Infection
المؤلفون المشاركون
Drop, Bartłomiej
Strycharz-Dudziak, Małgorzata
Kiełczykowska, Małgorzata
Świątek, Łukasz
Kliszczewska, Ewa
Musik, Irena
Polz-Dacewicz, Małgorzata
المصدر
Oxidative Medicine and Cellular Longevity
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-15، 15ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-07-08
دولة النشر
مصر
عدد الصفحات
15
التخصصات الرئيسية
الملخص EN
A growing number of studies reveal that oxidative stress is associated with viral infections or cancer development.
However, there are few reports assessing the relationships between oxidative stress, viral infection, and carcinogenesis.
The present study analyzed the level of total antioxidant status (TAS) as well as the activities of glutathione peroxidase (GPx) and superoxide dismutase (SOD) in patients with oropharyngeal cancer both Epstein-Barr virus (EBV)-positive and EBV-negative in comparison with the control group.
The correlations between these parameters and EBV type (wild-type LMP1 (wt-LMP1) or LMP1 with deletion (del-LMP1)), level of antibodies against EBV, the degree of tumor differentiation, and TNM classification were also investigated.
Fresh frozen tumor tissue samples collected from 66 patients with oropharyngeal squamous cell carcinoma were tested using nested PCR assay for EBV DNA detection.
Spectrophotometric methods were used to measure TAS values as well as SOD and GPx activities in homogenates of tissue, using diagnostic kits produced by Randox Laboratories.
Sera from all individuals were investigated using ELISA method to detect the presence of Epstein-Barr virus capsid antigen (EBVCA) IgM and IgG, Epstein-Barr virus nuclear antigen (EBNA) IgG, and early antigen (EA) IgG antibodies.
The level of TAS and activities of antioxidant enzymes (GPx and SOD) were significantly decreased in tissues with oropharyngeal cancer, particularly in EBV-positive cases.
In 82.3% of patients, wt-LMP1 was detected.
Significantly lower TAS, GPx, and SOD values were stated in patients infected with wild-type EBV.
The presence of antibodies against early antigen (anti-EA) was detected in over 80% of patients, which suggests reactivation of EBV infection.
The correlation between the degree of tumor differentiation and TN classification, especially in EBV-positive patients, was also observed.
Determination of these parameters may be useful in evaluating tumor burden in patients with various stages of oropharyngeal cancer and could be an important prognostic factor.
Future studies are needed to understand the role of EBV lytic reactivation induced by oxidative stress.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Strycharz-Dudziak, Małgorzata& Kiełczykowska, Małgorzata& Drop, Bartłomiej& Świątek, Łukasz& Kliszczewska, Ewa& Musik, Irena…[et al.]. 2019. Total Antioxidant Status (TAS), Superoxide Dismutase (SOD), and Glutathione Peroxidase (GPx) in Oropharyngeal Cancer Associated with EBV Infection. Oxidative Medicine and Cellular Longevity،Vol. 2019, no. 2019, pp.1-15.
https://search.emarefa.net/detail/BIM-1204325
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Strycharz-Dudziak, Małgorzata…[et al.]. Total Antioxidant Status (TAS), Superoxide Dismutase (SOD), and Glutathione Peroxidase (GPx) in Oropharyngeal Cancer Associated with EBV Infection. Oxidative Medicine and Cellular Longevity No. 2019 (2019), pp.1-15.
https://search.emarefa.net/detail/BIM-1204325
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Strycharz-Dudziak, Małgorzata& Kiełczykowska, Małgorzata& Drop, Bartłomiej& Świątek, Łukasz& Kliszczewska, Ewa& Musik, Irena…[et al.]. Total Antioxidant Status (TAS), Superoxide Dismutase (SOD), and Glutathione Peroxidase (GPx) in Oropharyngeal Cancer Associated with EBV Infection. Oxidative Medicine and Cellular Longevity. 2019. Vol. 2019, no. 2019, pp.1-15.
https://search.emarefa.net/detail/BIM-1204325
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1204325
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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