Human Cytomegalovirus and Human Herpesvirus-6 and Wilms Tumor: Is There a Link?

Background: Identifying etiologic factors contributing to Wilms tumor (WT) is necessary for its prevention and treatment. Onco-genic viruses cause nearly 20% of all human cancers. Although trials on preventing virus-caused cancers are complex and diÿcult, but they are not impossible to conduct. Human Cytomegalovirus (HCMV) and human herpes virus-6 (HHV6) can cause di erent types of cancers. Objectives: The current study aimed to investigate whether HCMV and HHV6-DNA are present in patients with WT. This is the first study of this kind in Iran. Methods: This study was performed on patients with kidney disorders who were referring to Mofid Pediatrics Hospital, Tehran (Iran), during 2010-16. In total, 98 kidney samples (49 patients with WT and 49 normal kidneys (autopsy) and kidneys with benign noninfectious lesions) were investigated to identify HCMV and HHV6-DNA. Qualitative Polymerase Chain reaction (PCR) method and nested polymerase chain reaction (nested-PCR) technique were used to identify HCMV and HHV6, respectively. Results: No significant di erence was found between WT patients and controls concerning the HCMV or HHV6. Conclusions: Based on the findings, it can be concluded that there is no association between these viruses and WT.