Genetic Variations of Tumor Necrosis Factor –α-308 and Lymphtoxin-α+252 in Non-Hodgkin Lymphoma and Acute Lymphoblastic Leukemia Patients

Document Type: Original Article

Authors

1 School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran

2 Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran

3 Childeren Hospital, Tabriz University of Medical Sciences, Tabriz, Iran

4 Tabriz branch, Islamic Azad University of Medical Science, Tabriz, Iran

5 Clinical Biochemistry Department, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran

6 Tuberclosis and Lung Disease Research Center, Tabriz University of Medical Sciences, Tabriz, Iran

7 Hematology & Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran

Abstract

 




Objective(s):
Non- Hodgkin lymphoma (NHL) and acute lymphoblastic leukemia (ALL) are two main hematological malignances which have been driven from lymphoid tissue. Genetic polymorphisms in tumor necrosis factor-α (TNF-α) -308 and lymphotoxin-α (LT-α) +252 may affect their transcription and expression which leads to their high plasma level. The frequency of the TNF-α (-308) and LT-α (+ 252) polymorphisms are different for NHL and ALL cases in various populations with different ethnicity. This research is designed to investigate the prevalence and association of TNF-α (-308) and LT-α (+ 252) polymorphisms from NHL and ALL in Azarian patients and healthy individuals from Northwestern part of Iran.
 
Materials and Methods:
Seventy subjects with ALL and 68 NHL, along with another 130 healthy subjects as control group took part in this study. Genomic DNA was extracted, then genetic polymorphisms in TNF-α and LT-α genes were analyzed with the PCR-RFLP and NCOI as restriction enzyme. A statistical analysis was performed by chi-square test using SPSS software. A P-value of <0.05 was considered statistically significant.
Results: A statistically significant difference of LT-α polymorphism was in NHL patients and control (P-value= 0.008) but there was not any association of TNF-α polymorphism between NHL patients and control group. A significant association for TNF-a variant was in ALL and control (P-value =0.005), however, there was no relationship about LT variant between ALL and control.
Conclusion:
The results show that there are significant differences between TNF-α (-308) and LT-α (+252) genetic polymorphisms respectively in ALL and NHL patients with control group from Northwestern part of Iran.

Keywords


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