PMID- 30542640 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200929 IS - 2234-943X (Print) IS - 2234-943X (Electronic) IS - 2234-943X (Linking) VI - 8 DP - 2018 TI - Human Herpesvirus 6 and Malignancy: A Review. PG - 512 LID - 10.3389/fonc.2018.00512 [doi] LID - 512 AB - In order to determine the role of human herpesvirus 6 (HHV-6) in human disease, several confounding factors, including methods of detection, types of controls, and the ubiquitous nature of the virus, must be considered. This is particularly problematic in the case of cancer, in which rates of detection vary greatly among studies. To determine what part, if any, HHV-6 plays in oncogenesis, a review of the literature was performed. There is evidence that HHV-6 is present in certain types of cancer; however, detection of the virus within tumor cells is insufficient for assigning a direct role of HHV-6 in tumorigenesis. Findings supportive of a causal role for a virus in cancer include presence of the virus in a large proportion of cases, presence of the virus in most tumor cells, and virus-induced in-vitro cell transformation. HHV-6, if not directly oncogenic, may act as a contributory factor that indirectly enhances tumor cell growth, in some cases by cooperation with other viruses. Another possibility is that HHV-6 may merely be an opportunistic virus that thrives in the immunodeficient tumor microenvironment. Although many studies have been carried out, it is still premature to definitively implicate HHV-6 in several human cancers. In some instances, evidence suggests that HHV-6 may cooperate with other viruses, including EBV, HPV, and HHV-8, in the development of cancer, and HHV-6 may have a role in such conditions as nodular sclerosis Hodgkin lymphoma, gastrointestinal cancer, glial tumors, and oral cancers. However, further studies will be required to determine the exact contributions of HHV-6 to tumorigenesis. FAU - Eliassen, Eva AU - Eliassen E AD - HHV-6 Foundation, Santa Barbara, CA, United States. FAU - Lum, Emily AU - Lum E AD - HHV-6 Foundation, Santa Barbara, CA, United States. FAU - Pritchett, Joshua AU - Pritchett J AD - Department of Internal Medicine, Mayo Clinic, Rochester, MN, United States. FAU - Ongradi, Joseph AU - Ongradi J AD - Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary. FAU - Krueger, Gerhard AU - Krueger G AD - Department of Pathology and Laboratory Medicine, University of Texas- Houston Medical School, Houston, TX, United States. FAU - Crawford, John R AU - Crawford JR AD - Department of Neurosciences and Pediatrics, University of California San Diego and Rady Children's Hospital, San Diego, CA, United States. FAU - Phan, Tuan L AU - Phan TL AD - HHV-6 Foundation, Santa Barbara, CA, United States. AD - Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA, United States. FAU - Ablashi, Dharam AU - Ablashi D AD - HHV-6 Foundation, Santa Barbara, CA, United States. FAU - Hudnall, Stanley David AU - Hudnall SD AD - Department of Pathology, Yale University, New Haven, CT, United States. LA - eng PT - Journal Article PT - Review DEP - 20181113 PL - Switzerland TA - Front Oncol JT - Frontiers in oncology JID - 101568867 PMC - PMC6277865 OTO - NOTNLM OT - HHV-6 OT - HHV6 OT - cancer OT - herpesvirus OT - human herpesvirus 6 OT - malignant OT - oncogenic OT - transformation EDAT- 2018/12/14 06:00 MHDA- 2018/12/14 06:01 PMCR- 2018/01/01 CRDT- 2018/12/14 06:00 PHST- 2018/07/13 00:00 [received] PHST- 2018/10/19 00:00 [accepted] PHST- 2018/12/14 06:00 [entrez] PHST- 2018/12/14 06:00 [pubmed] PHST- 2018/12/14 06:01 [medline] PHST- 2018/01/01 00:00 [pmc-release] AID - 10.3389/fonc.2018.00512 [doi] PST - epublish SO - Front Oncol. 2018 Nov 13;8:512. doi: 10.3389/fonc.2018.00512. eCollection 2018.