Articles

Association of HHV-6 with Hodgkin and non Hodgkin lymphoma

Abstract

Background and Objectives: Human Herpes 6 virus (HHV-6) could remain latent and chronic in the host cells after primary infection. HHV-6 genome encodes certain trans activation proteins which may results in development of malignantlymphoma. The association of human herpes six virus (HHV-6) infection and Hodgkin and Non-Hodgkin lymphomas is strongly supported by epidemiological studies. The aim of this study was to determine the prevalence of HHV-6 among the patients with Hodgkin, Non- Hodgkin`s lymphoma.
Materials and Methods: Overall 44 blocks of formalin-fixed, paraffin-embedded of the patients including 22(50%) Hodgkin and 22(50%) Non-Hodgkin Lymphoma were collected. Initially the section of 5μm-thickness were prepared from the formalin-fixed, paraffin-embedded tissue blocks. Then the deparaphinazation was carried out for each sample. The DNA was extracted, followed by nested PCR for detection of HHV-6. Based on PCR product size and sequencing, the HHV-6 A or B subtypes were characterized.
Results: 12/22(54.54%) cases of Hodgkin and 8/22 (36.36%) Non-Hodgkin’s lymphoma were shown as positive for HHV-6. Out of 12 positive HHV-6 in Hodgkin lymphoma, 10 patients (45.45%) belonged to variant A while 2 cases (9.09%) were found positive for both HHV-6A and HHV-6B. All the Non Hodgkin samples (n=8, 36.36%) showed positive for HHV-6 variant A.
Conclusion: High prevalence of HHV-6 was found among the patients with Hodgkin and Non-Hodgkin’s lymphoma. Two patients with Hodgkin lymphoma had mixed HHV-6A and HHV-6B infections. It is recommended patients with Hodgkin and Non-Hodgkin should be screened for HHV-6 detection before chemotherapy.

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IssueVol 8 No 2 (2016) QRcode
SectionArticles
Keywords
Nested PCR Human Herpes virus 6 Hodgkin lymphoma Non-Hodgkin lymphoma
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How to Cite
1.
Kiani H, Makvandi M, Samarbafzadeh A, Teimoori A, Neisi N, Mehravaran H, Radmehr H, Hosseini Z, Haghi A, Shahani T, Varnaseri M, Ranjbari N. Association of HHV-6 with Hodgkin and non Hodgkin lymphoma. Iran J Microbiol. 2016;8(2):153-158.