Variability of VPU protein in HIV-1 sub-subtype A6 in patients with different stages of HIV infection-Reference-Cited by-同舟云学术

Variability of VPU protein in HIV-1 sub-subtype A6 in patients with different stages of HIV infection

Published:2024-09-05 Issue:2 Volume:16 Page:40-50
ISSN:2077-9828
Container-title:HIV Infection and Immunosuppressive Disorders
language:
Short-container-title:VIČ-infekc. immunosupr.

Author:

Antonova A. A.¹^ORCID,Lebedev A. V.¹^ORCID,Kazennova E. V.¹^ORCID,Kim K. V.¹^ORCID,Ozhmegova E. N.¹^ORCID,Tumanov A. S.¹^ORCID,Munchak Ya. M.¹^ORCID,Orlova-Morozova E. A.²^ORCID,Pronin A. Yu.²^ORCID,Prilipov A. G.¹^ORCID,Kuznetsova A. I.¹^ORCID

Affiliation:

1. N. F. Gamaleya National Research Center for Epidemiology and Microbiology

2. Center for the Prevention and Control of AIDS and Infectious Diseases

Abstract

The aim of the study: to compare the genetic diversity of the Vpu protein in HIV-1 in the people living with HIV (PLWH) with different stages of the disease.Materials and methods. An analysis was carried out of 259 clinical samples of whole blood from HIV-infected patients with no experience of taking antiretroviral therapy, who were observed at the Center for the Prevention and Control of AIDS and Infectious Diseases, Moscow, Russia. The analysis included the following stages: extraction of proviral DNA, ampliﬁcation of the region of the virus genome containing the vpu gene, sequencing of ampliﬁcation products, genotyping, comparison of conservation and amino acid substitutions in the Vpu protein sequences in PLWH with different stages of the disease.Results and discussion. In 255 out of 259 (98.4%) clinical samples, a sub-subtype A6 virus variant was identiﬁed. The consensus sequence of the Vpu sub-subtype A6 protein was obtained, which contained 81 amino acids. No signiﬁcant differences in the conservation of Vpu protein sequences were found between HIV-1 variants obtained from patients with different stages of the disease. Amino acid substitution P3A was signiﬁcantly more common in PLWH with the second stage of HIV infection.Conclusion. The results obtained highlight the issue of the inﬂuence of non-structural proteins of HIV-1 on the course of the disease and indicate directions for possible research in the future.

Publisher

Baltic Medical Education Center

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