Role of the HTLV-1 viral factors in the induction of apoptosis

Biomed Pharmacother. 2017 Jan:85:334-347. doi: 10.1016/j.biopha.2016.11.034. Epub 2016 Nov 23.

Abstract

Adult T-cell leukemia (ATL) and HTLV-1-associated Myelopathy/Tropical Spastic Paraparesis (HAM/TSP) are the two main diseases that are caused by the HTLV-1 virus. One of the features of HTLV-1 infection is its resistance against programmed cell death, which maintains the survival of cells to oncogenic transformation and underlies the viruses' therapeutic resistance. Two main genes by which the virus develops cancer are Tax and HBZ; playing an essential role in angiogenesis in regulating viral transcription and modulating multiple host factors as well as apoptosis pathways. Here we have reviewed by prior research how the apoptosis pathways are suppressed by the Tax and HBZ and new drugs which have been designed to deal with this suppression.

Keywords: Apoptosis; HBZ; HTLV-1; Tax.

Publication types

  • Review

MeSH terms

  • Animals
  • Antineoplastic Agents / therapeutic use
  • Antiviral Agents / therapeutic use
  • Apoptosis Regulatory Proteins / metabolism
  • Apoptosis*
  • Basic-Leucine Zipper Transcription Factors / genetics
  • Basic-Leucine Zipper Transcription Factors / metabolism*
  • Cell Transformation, Viral
  • Gene Products, tax / genetics
  • Gene Products, tax / metabolism*
  • Genome, Viral
  • HTLV-I Infections / drug therapy
  • HTLV-I Infections / metabolism
  • HTLV-I Infections / pathology
  • HTLV-I Infections / virology*
  • Host-Pathogen Interactions
  • Human T-lymphotropic virus 1 / drug effects
  • Human T-lymphotropic virus 1 / genetics
  • Human T-lymphotropic virus 1 / metabolism*
  • Human T-lymphotropic virus 1 / pathogenicity
  • Humans
  • Leukemia-Lymphoma, Adult T-Cell / drug therapy
  • Leukemia-Lymphoma, Adult T-Cell / metabolism
  • Leukemia-Lymphoma, Adult T-Cell / pathology
  • Leukemia-Lymphoma, Adult T-Cell / virology*
  • Paraparesis, Tropical Spastic / drug therapy
  • Paraparesis, Tropical Spastic / metabolism
  • Paraparesis, Tropical Spastic / pathology
  • Paraparesis, Tropical Spastic / virology*
  • Retroviridae Proteins / genetics
  • Retroviridae Proteins / metabolism*

Substances

  • Antineoplastic Agents
  • Antiviral Agents
  • Apoptosis Regulatory Proteins
  • Basic-Leucine Zipper Transcription Factors
  • Gene Products, tax
  • HBZ protein, human T-cell leukemia virus type I
  • Retroviridae Proteins
  • tax protein, Human T-lymphotrophic virus 1