1
|
Dapp MJ, Kober KM, Chen L, Westfall DH, Wong K, Zhao H, Hall BM, Deng W, Sibley T, Ghorai S, Kim K, Chen N, McHugh S, Au L, Cohen M, Anastos K, Mullins JI. Patterns and rates of viral evolution in HIV-1 subtype B infected females and males. PLoS One 2017; 12:e0182443. [PMID: 29045410 PMCID: PMC5646779 DOI: 10.1371/journal.pone.0182443] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 07/18/2017] [Indexed: 12/18/2022] Open
Abstract
Biological sex differences affect the course of HIV infection, with untreated women having lower viral loads compared to their male counterparts but, for a given viral load, women have a higher rate of progression to AIDS. However, the vast majority of data on viral evolution, a process that is clearly impacted by host immunity and could be impacted by sex differences, has been derived from men. We conducted an intensive analysis of HIV-1 gag and env-gp120 evolution taken over the first 6–11 years of infection from 8 Women’s Interagency HIV Study (WIHS) participants who had not received combination antiretroviral therapy (ART). This was compared to similar data previously collected from men, with both groups infected with HIV-1 subtype B. Early virus populations in men and women were generally homogenous with no differences in diversity between sexes. No differences in ensuing nucleotide substitution rates were found between the female and male cohorts studied herein. As previously reported for men, time to peak diversity in env-gp120 in women was positively associated with time to CD4+ cell count below 200 (P = 0.017), and the number of predicted N-linked glycosylation sites generally increased over time, followed by a plateau or decline, with the majority of changes localized to the V1-V2 region. These findings strongly suggest that the sex differences in HIV-1 disease progression attributed to immune system composition and sensitivities are not revealed by, nor do they impact, global patterns of viral evolution, the latter of which proceeds similarly in women and men.
Collapse
Affiliation(s)
- Michael J. Dapp
- Department of Microbiology, University of Washington School of Medicine, Seattle, Washington, United States of America
| | - Kord M. Kober
- Department of Physiological Nursing, University of California at San Francisco, California, United States of America
| | - Lennie Chen
- Department of Microbiology, University of Washington School of Medicine, Seattle, Washington, United States of America
| | - Dylan H. Westfall
- Department of Microbiology, University of Washington School of Medicine, Seattle, Washington, United States of America
| | - Kim Wong
- Department of Microbiology, University of Washington School of Medicine, Seattle, Washington, United States of America
| | - Hong Zhao
- Department of Microbiology, University of Washington School of Medicine, Seattle, Washington, United States of America
| | - Breana M. Hall
- Department of Microbiology, University of Washington School of Medicine, Seattle, Washington, United States of America
| | - Wenjie Deng
- Department of Microbiology, University of Washington School of Medicine, Seattle, Washington, United States of America
| | - Thomas Sibley
- Department of Microbiology, University of Washington School of Medicine, Seattle, Washington, United States of America
| | - Suvankar Ghorai
- Department of Microbiology, University of Washington School of Medicine, Seattle, Washington, United States of America
| | - Katie Kim
- Department of Microbiology, University of Washington School of Medicine, Seattle, Washington, United States of America
| | - Natalie Chen
- Department of Microbiology, University of Washington School of Medicine, Seattle, Washington, United States of America
| | - Sarah McHugh
- Department of Microbiology, University of Washington School of Medicine, Seattle, Washington, United States of America
| | - Lily Au
- Department of Microbiology, University of Washington School of Medicine, Seattle, Washington, United States of America
| | - Mardge Cohen
- The Core Center, Bureau of Health Services of Cook County, Chicago, Illinois, United States of America
| | - Kathryn Anastos
- Department of Medicine, Albert Einstein College of Medicine, Bronx, New York, United States of America
| | - James I. Mullins
- Department of Microbiology, University of Washington School of Medicine, Seattle, Washington, United States of America
- Department of Medicine, University of Washington School of Medicine, Seattle, Washington, United States of America
- Department of Global Health, University of Washington School of Medicine, Seattle, Washington, United States of America
- Department of Laboratory Medicine, University of Washington School of Medicine, Seattle, Washington, United States of America
- * E-mail:
| |
Collapse
|
2
|
Dai D, Shang H, Han XX, Zhao B, Liu J, Ding HB, Xu JJ, Chu ZX. The biological characteristics of predominant strains of HIV-1 genotype: modeling of HIV-1 infection among men who have sex with men. J Med Virol 2015; 87:557-68. [PMID: 25655808 DOI: 10.1002/jmv.24116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/16/2014] [Indexed: 12/29/2022]
Abstract
To investigate the molecular subtypes of prevalent HIV-1 strains and characterize the genetics of dominant strains among men who have sex with men. Molecular epidemiology surveys in this study concentrated on the prevalent HIV-1 strains in Liaoning province by year. 229 adult patients infected with HIV-1 and part of a high-risk group of men who have sex with men were recruited. Reverse transcription and nested PCR amplification were performed. Sequencing reactions were conducted and edited, followed by codon-based alignment. NJ phylogenetic tree analyses detected two distinct CRF01_AE phylogenetic clusters, designated clusters 1 and 2. Clusters 1 and 2 accounted for 12.8% and 84.2% of sequences in the pol gene and 17.6% and 73.1% of sequences in the env gene, respectively. Another six samples were distributed on other phylogenetic clusters. Cluster 1 increased significantly from 5.6% to 20.0%, but cluster 2 decreased from 87.5% to 80.0%. Genetic distance analysis indicated that CRF01_AE cluster 1 in Liaoning was homologous to epidemic CRF01_AE strains, but CRF01_AE cluster 2 was different from other scattered strains. Additionally, significant differences were found in tetra-peptide motifs at the tip of V3 loop between cluster 1 and 2; however, differences in coreceptor usage were not detected. This study shows that subtype CRF01_AE strain may be the most prevalent epidemic strain in the men who have sex with men. Genetic characteristics of the subtype CRF01_AE cluster strain in Liaoning showed homology to the prevalent strains of men who have sex with men in other parts of China.
Collapse
Affiliation(s)
- Di Dai
- Key Laboratory of AIDS Immunology of National Health and Family Planning Commission, Department of Laboratory Medicine, The First Affiliated Hospital, China Medical University, Shenyang, China; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | | | | | | | | | | | | | | |
Collapse
|