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Updated: Mar 30, 2026

Amplification, Next-generation Sequencing, and Genomic DNA Mapping of Retroviral Integration Sites
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Amplification, Next-generation Sequencing, and Genomic DNA Mapping of Retroviral Integration Sites

Published on: March 22, 2016

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Cellular and viral determinants of retroviral nuclear entry

Faysal Bin Hamid1,1, Jinsun Kim1,1, Cha-Gyun Shin1,1

  • 1Department of Systems Biotechnology, Chung-Ang University, Ansung 456-756, Republic of Korea.

Canadian Journal of Microbiology
|November 11, 2015
PubMed

Insights

Retroviruses integrate into host DNA using pre-integration complexes. This review explores viral and cellular interactions during nuclear import, identifying potential therapeutic targets for retroviral infections.

Area of Science:

  • Virology
  • Molecular Biology
  • Cell Biology

Background:

  • Retroviruses require integration into the host genome to establish infection, forming proviruses.
  • Pre-integration complexes, containing viral cDNA and proteins, facilitate nuclear entry and integration.
  • Host cellular proteins in the cytoplasm can restrict retroviral infection, necessitating viral evasion strategies.

Purpose of the Study:

  • To review the synergistic relationship between viral and cellular factors in retroviral nuclear import.
  • To elucidate host-pathogen interactions during the pre-integration phase.
  • To identify novel therapeutic targets for retroviral infections.

Main Methods:

  • Literature review of current research on retroviral nuclear import.
  • Analysis of host-pathogen interactions, focusing on viral and cellular proteins.
  • Discussion of RNA interference screening data identifying essential host factors for HIV infection.

Main Results:

  • Over 1000 host proteins are implicated in HIV infection, with karyopherins, cleavage and polyadenylation specific factor 6, and nucleoporins being key players.
  • Viral proteins utilize nuclear localization signals for nuclear entry.
  • Complex interactions between viral and cellular factors govern successful nuclear import and integration.

Conclusions:

  • Understanding the interplay between viral and cellular factors is crucial for combating retroviral infections.
  • Novel therapeutic strategies can be developed by targeting specific host-pathogen interactions during nuclear import.
  • Further research into these interactions holds promise for effective antiviral therapies.
Keywords:
2-LTRCPIHIV-1PICTNPO3VIH-1importation nucléairenuclear import

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