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Updated: Jun 20, 2026

Two Methods of Heterokaryon Formation to Discover HCV Restriction Factors

Two Methods of Heterokaryon Formation to Discover HCV Restriction Factors

Published on: July 16, 2012

Human cellular restriction factors that target HIV-1 replication.

Klaus Strebel¹, Jeremy Luban, Kuan-Teh Jeang

¹Laboratory of Molecular Microbiology, NIAID, the National Institutes of Health, Bethesda, Maryland, USA.

|September 18, 2009

Summary

Host restriction factors like APOBEC3G and BST-2 limit HIV-1 replication. This review details these innate cellular defenses and HIV-1 strategies to overcome them.

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Identification of Nucleolar Factors During HIV-1 Replication Through Rev Immunoprecipitation and Mass Spectrometry

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Last Updated: Jun 20, 2026

Two Methods of Heterokaryon Formation to Discover HCV Restriction Factors

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Published on: July 16, 2012

A Restriction Enzyme Based Cloning Method to Assess the In vitro Replication Capacity of HIV-1 Subtype C Gag-MJ4 Chimeric Viruses

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Identification of Nucleolar Factors During HIV-1 Replication Through Rev Immunoprecipitation and Mass Spectrometry

Identification of Nucleolar Factors During HIV-1 Replication Through Rev Immunoprecipitation and Mass Spectrometry

Published on: June 26, 2019

Area of Science:

Virology
Immunology
Molecular Biology

Background:

Innate cellular factors play crucial roles in restricting viral replication.
Understanding these host-pathogen interactions is key to developing antiviral strategies.

Purpose of the Study:

To review the activities of key host restriction factors targeting HIV-1.
To highlight HIV-1's countermeasures against these cellular defenses.

Main Methods:

Literature review of innate cellular restriction factors.
Analysis of host-pathogen interactions between HIV-1 and cellular factors.

Main Results:

Identified apolipoprotein B mRNA-editing enzyme 3G (APOBEC3G), bone marrow stromal cell antigen 2 (BST-2), cyclophilin A, tripartite motif protein 5 alpha (Trim5alpha), and cellular microRNAs as HIV-1 restriction factors.
Detailed HIV-1 encoded countermeasures that moderate the potency of these cellular restriction functions.

Conclusions:

Innate cellular factors represent a significant barrier to HIV-1 replication.
HIV-1 has evolved sophisticated mechanisms to counteract host restriction factors, illustrating a dynamic evolutionary arms race.