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 ORIGINAL ARTICLE
Year : 2015  |  Volume : 52  |  Issue : 1  |  Page : 61-64

No evidence of association of xenotropic murine leukemia virus-related virus with oral cancers: Experience from a tertiary care center in South India


1 Department of Microbiology, Kidwai Memorial Institute of Oncology, Bangalore, Karnataka, India
2 Department of Oral Surgery, Kidwai Memorial Institute of Oncology, Bangalore, Karnataka, India
3 Department of Pathology, Kidwai Memorial Institute of Oncology, Bangalore, Karnataka, India

Correspondence Address:
M Sinha
Department of Microbiology, Kidwai Memorial Institute of Oncology, Bangalore, Karnataka
India
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Source of Support: Rajiv Gandhi University of Health Sciences, Bangalore, India., Conflict of Interest: None


DOI: 10.4103/0019-509X.175595

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Background: Development of oral cancer, a widely prevalent cancer in India, is multifactorial with increased risk in those habituated to smoking, consuming alcohol and chewing paan and tobacco. This does not preclude other etiological factors in the causation of this cancer. Exploratory studies on several oncogenic viruses have found varied associations with oral cancers.Aim: The aim of this study was to explore the association of xenotropic murine leukemia virus-related virus, (XMRV) a retrovirus recently implicated in oncogenesis in humans, with oral cancers.Settings And Design: The presence of XMRV proviral deoxyribonucleic acid (DNA) was evaluated by standard nucleic acid amplification from DNA extracted from representative bits of tumor tissues and adjacent normal tissues from surgically resected specimens sent post-operatively for routine histopathological testing.Materials And Methods: This prospective study comprised 109 patients with a provisional diagnosis of oral cancer who were operated at the Oral Oncology Department of Kidwai Memorial Institute of Oncology, over a period of 10 months.Results: XMRV was not found in any of the tumor tissues (squamous cell carcinomas - 98; verrucous carcinomas - 4) nor in any of the normal tissues. It is thus important that the absence of this oncogenic virus in all the cases makes the association of XMRV with oral cancers very unlikely.Conclusions: There is a need to investigate potentially oncogenic viruses in other solid tumors and in larger sample sizes. Any such association could have implications in detecting, preventing and treating these cancers.






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