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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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New Knowledge About CCR5, HIV Infection, and Disease Progression: Is "Old" Still Valuable?

Rajeev K Mehlotra¹

¹Center for Global Health and Diseases, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA.

AIDS Research and Human Retroviruses

|July 4, 2020

Summary

Genetic variations in the CCR5 gene, like the CCR5 Δ32 deletion and promoter SNPs, influence HIV infection. New CCR region SNPs also impact HIV, but excluding the -2459G/A polymorphism may limit conclusions.

Keywords:

CCR5 HIV host genetics promoter polymorphism

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Prediction of HIV-1 Coreceptor Usage Tropism by Sequence Analysis using a Genotypic Approach

Prediction of HIV-1 Coreceptor Usage Tropism by Sequence Analysis using a Genotypic Approach

Published on: December 1, 2011

Area of Science:

Immunology
Genetics
Virology

Background:

C-C chemokine receptor (CCR) 5 is crucial for HIV-1 entry and spread.
CCR5 expression is modulated by genetic polymorphisms, affecting HIV acquisition and progression.
Key polymorphisms include CCR5 Δ32 and the promoter SNP -2459G/A.

Purpose of the Study:

To review recent discoveries of SNPs in the CCR region affecting CCR5 expression and HIV/AIDS.
To highlight the importance of including the -2459G/A polymorphism in genetic studies of HIV.
To emphasize the value of all genetic insights in combating the HIV/AIDS public health threat.

Main Methods:

Literature review and synthesis of existing research on CCR5 polymorphisms and HIV/AIDS.
Analysis of the impact of newly discovered CCR region SNPs on CCR5 expression and HIV infection.
Evaluation of the significance of the -2459G/A polymorphism in the context of other CCR5 variations.

Main Results:

Recent studies identified novel SNPs in the CCR region, beyond CCR5, influencing CCR5 expression and HIV disease.
These new SNPs, similar to CCR5 Δ32 and -2459G/A, play a role in HIV infection dynamics.
Excluding the -2459G/A polymorphism from analyses of new CCR SNPs may lead to incomplete conclusions.

Conclusions:

Genetic variations significantly impact HIV-1 pathogenesis and disease progression.
Comprehensive genetic analysis, including well-characterized polymorphisms like -2459G/A, is essential for understanding HIV/AIDS.
Further research integrating all relevant genetic factors is crucial for developing effective HIV prevention and treatment strategies.