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The Role of Endogenous Retroviruses-K in Human Cancer Publisher Pubmed



Salavatiha Z1 ; Soleimanijelodar R1 ; Jalilvand S1
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Authors Affiliations
  1. 1. Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran

Source: Reviews in Medical Virology Published:2020


Abstract

It is known that human endogenous retroviruses (HERVs) constitute almost 8% of the human genome. Although the expression of HERVs from the human genome is tightly regulated, different exogenous and endogenous factors could trigger HERV activation. Aberrant expression of different HERVs may potentially cause a variety of diseases such as neurological and autoimmune diseases as well as cancer. It is suggested that HERV-K can induce cancer through different mechanisms that are discussed. The interplay between some tumor viruses and HERV-K seems to be a key player in progression of viral-associated cancers because elevated levels of Rec and Np9 proteins are observed in several cancers. The frequent over expression of HERV proteins and some specific antibodies in cancer cells could be considered as suitable prognostic and therapeutic biomarkers in diagnosis and treatment of cancers. The expression of HERV proteins in cancers and development of immune responses against them may also be used as targets for cancer immunotherapy. Further studies are warranted to evaluate the role of HERVs in cancer formation and use of different HERV proteins in developing new diagnostic and therapeutic approaches for cancer treatments. © 2020 John Wiley & Sons, Ltd
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