Epigenetic Regulation of Human T-Cell Leukemia Virus Gene Expression

Viral and cellular gene expression are regulated by epigenetic alterations, including DNA methylation, histone modifications, nucleosome positioning, and chromatin looping. Human T-cell leukemia virus type 1 (HTLV-1) is a pathogenic retrovirus associated with inflammatory disorders and T-cell lympho...

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Main Author: Lee Ratner
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Microorganisms
Subjects:
Online Access:https://www.mdpi.com/2076-2607/10/1/84
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author Lee Ratner
author_facet Lee Ratner
author_sort Lee Ratner
collection DOAJ
description Viral and cellular gene expression are regulated by epigenetic alterations, including DNA methylation, histone modifications, nucleosome positioning, and chromatin looping. Human T-cell leukemia virus type 1 (HTLV-1) is a pathogenic retrovirus associated with inflammatory disorders and T-cell lymphoproliferative malignancy. The transforming activity of HTLV-1 is driven by the viral oncoprotein Tax, which acts as a transcriptional activator of the cAMP response element-binding protein (CREB) and nuclear factor kappa B (NFκB) pathways. The epigenetic effects of Tax and the induction of lymphoproliferative malignancy include alterations in DNA methylation and histone modifications. In addition, alterations in nucleosome positioning and DNA looping also occur in HTLV-1-induced malignant cells. A mechanistic definition of these effects will pave the way to new therapies for HTLV-1-associated disorders.
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spelling doaj.art-69ae9f590a1a4f4190dd917e6e6c7ed92023-11-23T14:47:03ZengMDPI AGMicroorganisms2076-26072021-12-011018410.3390/microorganisms10010084Epigenetic Regulation of Human T-Cell Leukemia Virus Gene ExpressionLee Ratner0Department of Medicine, Division of Molecular Oncology, Washington University School of Medicine, Box 8069, 660 S Euclid Ave, St. Louis, MO 63110, USAViral and cellular gene expression are regulated by epigenetic alterations, including DNA methylation, histone modifications, nucleosome positioning, and chromatin looping. Human T-cell leukemia virus type 1 (HTLV-1) is a pathogenic retrovirus associated with inflammatory disorders and T-cell lymphoproliferative malignancy. The transforming activity of HTLV-1 is driven by the viral oncoprotein Tax, which acts as a transcriptional activator of the cAMP response element-binding protein (CREB) and nuclear factor kappa B (NFκB) pathways. The epigenetic effects of Tax and the induction of lymphoproliferative malignancy include alterations in DNA methylation and histone modifications. In addition, alterations in nucleosome positioning and DNA looping also occur in HTLV-1-induced malignant cells. A mechanistic definition of these effects will pave the way to new therapies for HTLV-1-associated disorders.https://www.mdpi.com/2076-2607/10/1/84HTLVATLLCpG methylationhistone methylationCTCFboundary element
spellingShingle Lee Ratner
Epigenetic Regulation of Human T-Cell Leukemia Virus Gene Expression
Microorganisms
HTLV
ATLL
CpG methylation
histone methylation
CTCF
boundary element
title Epigenetic Regulation of Human T-Cell Leukemia Virus Gene Expression
title_full Epigenetic Regulation of Human T-Cell Leukemia Virus Gene Expression
title_fullStr Epigenetic Regulation of Human T-Cell Leukemia Virus Gene Expression
title_full_unstemmed Epigenetic Regulation of Human T-Cell Leukemia Virus Gene Expression
title_short Epigenetic Regulation of Human T-Cell Leukemia Virus Gene Expression
title_sort epigenetic regulation of human t cell leukemia virus gene expression
topic HTLV
ATLL
CpG methylation
histone methylation
CTCF
boundary element
url https://www.mdpi.com/2076-2607/10/1/84
work_keys_str_mv AT leeratner epigeneticregulationofhumantcellleukemiavirusgeneexpression