1
|
Vicenzi E, Liò P, Poli G. The puzzling role of CXCR4 in human immunodeficiency virus infection. Theranostics 2013; 3:18-25. [PMID: 23382782 PMCID: PMC3563077 DOI: 10.7150/thno.5392] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2012] [Accepted: 12/26/2012] [Indexed: 11/05/2022] Open
Abstract
The human immunodeficiency virus type-1 (HIV-1) is the etiological agent of the acquired immunodeficiency syndrome (AIDS), a disease highly lethal in the absence of combination antiretroviral therapy. HIV infects CD4(+) cells of the immune system (T cells, monocyte-macrophages and dendritic cells) via interaction with a universal primary receptor, the CD4 molecule, followed by a mandatory interaction with a second receptor (co-receptor) belonging to the chemokine receptor family. Apart from some rare cases, two chemokine receptors have been evolutionarily selected to accomplish this need for HIV-1: CCR5 and CXCR4. Yet, usage of these two receptors appears to be neither casual nor simply explained by their levels of cell surface expression. While CCR5 use is the universal rule at the start of every infection regardless of the transmission route (blood-related, sexual or mother to child), CXCR4 utilization emerges later in disease coinciding with the immunological deficient phase of infection. Moreover, in most instances CXCR4 use as viral entry co-receptor is associated with maintenance of CCR5 use. Since antiviral agents preventing CCR5 utilization by the virus are already in use, while others targeting either CCR5 or CXCR4 (or both) are under investigation, understanding the biological correlates of this "asymmetrical" utilization of HIV entry co-receptors bears relevance for the clinical choice of which therapeutics should be administered to infected individuals. We will here summarize the basic knowledge and the hypotheses underlying the puzzling and yet unequivocal role of CXCR4 in HIV-1 infection.
Collapse
|
2
|
Mahajan SD, Agosto-Mojica A, Aalinkeel R, Reynolds JL, Nair BB, Sykes DE, Martinez J, Adams J, Singh N, Bernstein Z, Hsiao CB, Schwartz SA. Role of chemokine and cytokine polymorphisms in the progression of HIV-1 disease. Biochem Biophys Res Commun 2010; 396:348-52. [PMID: 20416280 DOI: 10.1016/j.bbrc.2010.04.095] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2010] [Accepted: 04/16/2010] [Indexed: 10/19/2022]
Abstract
Allelic variants of the genes for chemokine receptors and their natural ligands, the chemokines, and cytokines can affect HIV-1 disease progression. This study investigates the level of expression of the CCR5-Delta32, CCR2b-641, RANTES In1.1C, SDF-1 3'A, IL-10-5'-592A and IL-4-589T alleles in two unique HIV-1 infected patient cohorts that represent the two distinct stages of disease progression, namely rapid progressors (RPs) and long term non-progressors (LTNPs) (n=12/group) were recruited. Quantitation of the gene expression of CCR5-Delta32, CCR2b-641, RANTES In1.1C, SDF-1 3'A, IL-10-5'-592A and IL-4-589T in peripheral blood mononuclear leukocytes (PBML) isolated from patients was performed by real time, quantitative (Q)-PCR using DNA was isolated from PBML. We observed that expression of these HIV-protective alleles was generally greater in the LTNP cohort than the RP cohort. LTNPs expressed more of the protective chemokine, SDF-1alpha than RPs, and no statistically significant difference was observed in RANTES production between the LTNPs and RPs. The LTNPs expressed significantly less amounts of cytokines IL-10 and IL-4 as compared to the RPs. Our results demonstrate that gene polymorphisms for CCR5-Delta32, CCR2b-641, RANTES In1.1C, SDF-1 3'A, IL-10-5'-592A and IL-4-589T may be used as clinical markers to predict progression of HIV-1 infections.
Collapse
Affiliation(s)
- Supriya D Mahajan
- Department of Medicine, Division of Allergy, State University of New York, Buffalo General Hospital, 100 High Street, Buffalo, NY 14203, USA.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
3
|
Choi BS, Choi JH, Kim SS, Kee MK, Lee JS. CCR2b-64I allelic polymorphisms in advanced HIV-infected Koreans accelerate disease progression. AIDS Res Hum Retroviruses 2007; 23:805-11. [PMID: 17604544 DOI: 10.1089/aid.2006.0133] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Genetic polymorphisms of chemokine genes and chemokine-receptor genes in HIV-infected patients have been associated with delayed progression of this disease. The allelic frequencies of these genetic variants also differ between ethnic groups. To investigate the effects of the SDF1 and CCR2b genotypes on disease progression, survival of 200 HIV-infected persons for whom at least four subsequent immunologic data items had been collected was analyzed. A genotyping assay of SDF1 and CCR2b genes was carried out using polymerase chain reaction-restriction fragment length polymorphism analyses. HIV-infected persons heterozygous for the SDF1-3'A or CCR2b-64I alleles were included in the survival analysis, but homozygotes were excluded because of a very small sample number. Neither the CCR2b-+/64I allele nor the SDF1-+/3'A allele, separately or in combination, had a significant impact on survival during the asymptomatic period of HIV infection. However, CCR2b-+/64I alleles were associated with accelerated disease progression during the advanced period of HIV infection. The survival time of HIV-infected people with CCR2b-+/64I and SDF1-+/+ genotypes was significantly shorter than those of the other groups (p < 0.01), but this effect was not apparent in persons with CCR2b-+/64I alleles and SDF1-+/3'A genotypes. These results suggest that the effect of CCR2b-64I polymorphisms on disease progression may differ according to the stage of HIV infection and interactions with other gene variants.
Collapse
Affiliation(s)
- Byeong-Sun Choi
- Division of AIDS, Center for Immunology and Pathology, National Institute of Health, Seoul, South Korea
| | | | | | | | | |
Collapse
|
4
|
Singh KK, Ellis RJ, Marquie-Beck J, Letendre S, Heaton RK, Grant I, Spector SA. CCR2 polymorphisms affect neuropsychological impairment in HIV-1-infected adults. J Neuroimmunol 2005; 157:185-92. [PMID: 15579296 DOI: 10.1016/j.jneuroim.2004.08.027] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/30/2004] [Indexed: 11/21/2022]
Abstract
CCR2 is a minor coreceptor for human immune deficiency virus-1 (HIV-1) and its impact on HIV-1-related neuropsychological impairment (NPI) remains unknown. We studied the impact of CCR2-V64I polymorphisms on the development of NPI in 121 HIV-1 patients. The CCR2-64-I allele was associated with rate of progression to NPI when measured from the first study visit (Log Rank p=0.01) or from the estimated time of seroconversion (p=0.02). CCR2-V64I was not associated with plasma or CSF HIV-1 RNA load, suggesting that the impact of CCR2 on neuropathogenesis may involve alterations in inflammatory responses within the CNS rather than a direct impact on viral entry or replication.
Collapse
Affiliation(s)
- Kumud K Singh
- Department of Pediatrics, Division of Infectious Diseases, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0672, USA.
| | | | | | | | | | | | | |
Collapse
|
5
|
Tang J, Kaslow RA. The impact of host genetics on HIV infection and disease progression in the era of highly active antiretroviral therapy. AIDS 2004; 17 Suppl 4:S51-60. [PMID: 15080180 DOI: 10.1097/00002030-200317004-00006] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Jianming Tang
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | | |
Collapse
|
6
|
van Rij RP, Hazenberg MD, van Benthem BHB, Otto SA, Prins M, Miedema F, Schuitemaker H. Early viral load and CD4+ T cell count, but not percentage of CCR5+ or CXCR4+ CD4+ T cells, are associated with R5-to-X4 HIV type 1 virus evolution. AIDS Res Hum Retroviruses 2003; 19:389-98. [PMID: 12803997 DOI: 10.1089/088922203765551737] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
HIV-1 infection is established by CCR5-utilizing (R5) variants, and CXCR4-utilizing (X4) variants emerge in approximately 50% of infected patients. We studied the role of CCR5 and CXCR4 expression before and 1 and 5 years after seroconversion in HIV-1 disease in a prospective study of 102 seroconverters. High percentages of CCR5(+) cells among total cells (relative hazard [RH], 2.55; 95% confidence interval [95% CI], 0.99-6.52), but not among CD45RO(-)CD4(+) and CD45RO(+)CD4(+) cells preseroconversion and among total cells and CD45RO(-)CD4(+) cells (RH, 2.70; 95% CI, 1.06-6.92 and RH, 3.54; 95% CI, 1.27-9.90, respectively) 5 years after seroconversion were associated with more rapid progression to AIDS. One year after seroconversion, high percentages of CXCR4(+) cells among total and CD45RO(-)CD4(+) cells were associated with delayed development of X4 variants (RH, 0.49; 95% CI, 0.20-1.21 and RH, 0.41; 95% CI, 0.17-1.02, respectively), whereas no association was observed for the percentage of CCR5(+) cells. In a larger study population, high early serum viral RNA and low CD4(+) T cell numbers were associated with more rapid development of X4 variants. Our results exclude target cell availability as a driving force for R5-to-X4 virus phenotype evolution.
Collapse
Affiliation(s)
- Ronald P van Rij
- Sanquin and the Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, 1066 CX Amsterdam, The Netherlands
| | | | | | | | | | | | | |
Collapse
|
7
|
Wang FS, Hong WG, Cao Y, Liu MX, Jin L, Hu LP, Wang Z, Feng TJ, Hou J, Zhang B, Shi M, Xu DP, Lei ZY, Wang B, Liu ZD, Ye JJ, Peng L, Qiu Y, Winkler C. Population survey of CCR5 delta32, CCR5 m303, CCR2b 64I, and SDF1 3'A allele frequencies in indigenous Chinese healthy individuals, and in HIV-1-infected and HIV-1-uninfected individuals in HIV-1 risk groups. J Acquir Immune Defic Syndr 2003; 32:124-30. [PMID: 12571520 DOI: 10.1097/00126334-200302010-00002] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The aim of this study is to determine in indigenous Chinese ethnic groups the frequencies of the chemokine (SDF1 3'A) and chemokine receptors (CCR5 delta32, CCR5 m303, and CCR2b 64I) HIV-1/AIDS restriction alleles. The study includes two cohorts; the first comprised 3165 indigenous healthy subjects representing eight ethnic groups: Han (n = 1406), Uygur (n = 316), Mongolia (n = 134), Hui (n = 386), Tibetan (n = 330), Zhuang (n = 378), Dai (n = 101), and Jingbo (n =114). The second cohort consisted of 330 HIV-1-infected (86 subjects infected by sexual transmission and 198 subjects infected by HIV-1-contaminated blood or by sharing injection equipment; the remaining 46 subjects said nothing about HIV-1 transmission) and 474 HIV-1-uninfected Han Chinese belonging to one of two HIV-1 high-risk groups: intravenous drug users (n = 215) and individuals with sexually transmitted diseases (n = 259). Genotypes for the four genes were obtained using PCR (CCR5 delta32) or PCR-restriction fragment length polymorphism. Randomly selected amplified PCR products were further confirmed by direct DNA sequencing. The variant allele frequencies were determined to be 0% to 3.48% for CCR5 delta32, 0% for CCR5 m303, 16.23% to 28.79% for CCR2b 64I, and 17.70% to 27.76% for SDF1 3'A in Chinese healthy individuals from eight ethnic groups. These findings show that allele frequencies differ among the eight Chinese ethnic groups for CCR5 delta32, CCR2b 64I, and SDF1 3'A and that the CCR5 m303 and CCR5 delta32 mutant alleles were absent or infrequent in Chinese, which may be helpful for studies of specific anti-HIV-1 vaccine trials and coreceptor inhibitor drug targets in Chinese populations. Furthermore, we observed no significant differences in allele or genotypic frequencies between HIV-1-infected and HIV-1-uninfected groups from the Han ethnic group. Our finding is the first reporting that there is likely no effect of the examined polymorphisms in our study on HIV-1 transmission in the Chinese Han population, However, the genetic effects of these and other AIDS-modifying polymorphisms on the pathogenesis and clinical outcome of HIV-1/AIDS diseases is under investigation in Chinese populations.
Collapse
Affiliation(s)
- Fu-Sheng Wang
- Division of Biological Engineering, Beijing Institute of Infectious Disease, Beijing Hospital of Infectious Disease, Beijing, China.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
8
|
|
9
|
Vicenzi E, Panina‐Bodignon P, Vallanti G, Di Lucia P, Poli G. Restricted replication of primary HIV‐1 isolates using both CCR5 and CXCR4 in Th2 but not in Th1 CD4
+
T cells. J Leukoc Biol 2002. [DOI: 10.1189/jlb.72.5.913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Elisa Vicenzi
- AIDS Immunopathogenesis Unit, San Raffaele Scientific Institute, Milano, Italy; and
| | | | - Giuliana Vallanti
- AIDS Immunopathogenesis Unit, San Raffaele Scientific Institute, Milano, Italy; and
| | | | - Guido Poli
- AIDS Immunopathogenesis Unit, San Raffaele Scientific Institute, Milano, Italy; and
| |
Collapse
|