ArticleClinical epigenetics2025
Changes of methylation at enhancers appear to be essential for HIV infection progression.
Article in Clinical epigenetics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Hijacking the Host: Post-Translational Modifications as Molecular Switches in HIV Persistence and Immune Evasion.Journal of medical virology · 2026Review
- Is the molecular microenvironment of the latent HIV reservoir predictable using deep learning approaches?Journal of virology · 2026Review
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundWe studied the influence of the European HIV-1 subtype B (most common in the Western and Central Europe) and subtype A6 (prevalent in Eastern Europe including Ukraine and Russia) on host methylome during infection progression and in virus-subtype-specific manner.
resultsOur results show that regardless of virus subtype, in the initial phase of the infection, HIV-related methylation changes more frequently affect parts of the genome with low expression activity including heterochromatin and quiescent regions. But, at stage four of the infection regions of the genome harboring HIV-related methylation changes are enhancers. We further showed that the effect of each of the virus subtypes on host methylome is to a large extent similar. And both virus subtypes appear to induce hypomethylation of loci associated with key pathways involved in viral infection such as 'type I interferon signaling pathway,' 'innate immune response' or 'negative regulation of viral genome replication.' Nevertheless, our results also indicate that each of the virus subtypes at least to some extent affects host methylome in virus-subtype-specific manner. Lastly, we showed that infection progression-related methylation changes that we identified are reversed with antiretroviral therapy.
conclusionsWe have shown that progression of HIV infection is associated with hypomethylation of enhancers regardless of virus subtype. This suggests that methylation changes at the enhancers may be key for infection progression. However, we also identified methylation changes indicating that, each of the virus subtypes affects host methylome in specific manner, but these findings need to be confirmed in studies that include larger number of participants.
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