2
|
Restrepo C, Gutierrez-Rivas M, Pacheco YM, García M, Blanco J, Medrano LM, Navarrete-Muñoz MA, Gutiérrez F, Miralles P, Dalmau D, Gómez JL, Górgolas M, Cabello A, Resino S, Benito JM, Rallón N. Genetic variation in CCR2 and CXCL12 genes impacts on CD4 restoration in patients initiating cART with advanced immunesupression. PLoS One 2019; 14:e0214421. [PMID: 30921390 PMCID: PMC6438540 DOI: 10.1371/journal.pone.0214421] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 03/12/2019] [Indexed: 01/01/2023] Open
Abstract
OBJECTIVE We investigated the association of genetic polymorphisms in chemokine and chemokine receptor genes with poor immunological recovery in HIV patients starting combined antiretroviral therapy (cART) with low CD4 T-cell counts. METHODS A case-control study was conducted in 412 HIV-infected patients starting cART with CD4 T-cell count <200 cells/μL and successful viral control for two years. CD4 count increase below 200 cells/μL after two years on cART was used to define INR (immunological non-responder) patients. Polymorphisms in CXCL12, CCL5 and CCR2 genes were genotyped using sequenom's MassARRAY platform. RESULTS Thirty two percent (134/412) of patients were classified as INR. After adjusting by age, route of HIV infection, length of infection before cART and viral hepatitis coinfection, CCR2 rs1799864-AG genotype was significantly associated with INR status (OR [95% CI]: 1.80 [1.04-3.11]; p = 0.04), and CXCL12 rs1801157-TT genotype showed a trend (OR [95% CI]: 2.47 [0.96-6.35]; p = 0.06). CONCLUSIONS CCR2 rs1799864-AG or CXCL12 rs1801157-TT genotypes influence on the probability of poor CD4 recovery in the population of HIV patients starting cART with low CD4 counts. Genotyping of these polymorphisms could be used to estimate the risk of poor CD4 restoration, mainly in patients who are diagnosed late in the course of infection.
Collapse
Affiliation(s)
- Clara Restrepo
- HIV and Viral Hepatitis Research Laboratory, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz, Universidad Autónoma de Madrid (IIS-FJD, UAM), Madrid, Spain
- Hospital Universitario Rey Juan Carlos, Móstoles (Madrid), Spain
| | | | - Yolanda M. Pacheco
- Laboratory of Immunology, Instituto de Biomedicina de Sevilla (IBiS)/UGC Clinical Laboratories, Hospital Universitario Virgen del Rocío, Sevilla, Spain
| | - Marcial García
- HIV and Viral Hepatitis Research Laboratory, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz, Universidad Autónoma de Madrid (IIS-FJD, UAM), Madrid, Spain
- Hospital Universitario Rey Juan Carlos, Móstoles (Madrid), Spain
| | - Julià Blanco
- IrsiCaixa AIDS Research Institute, Badalona, Spain
| | | | - María A. Navarrete-Muñoz
- HIV and Viral Hepatitis Research Laboratory, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz, Universidad Autónoma de Madrid (IIS-FJD, UAM), Madrid, Spain
- Hospital Universitario Rey Juan Carlos, Móstoles (Madrid), Spain
| | - Félix Gutiérrez
- Hospital General Universitario de Elche & University Miguel Hernández, Alicante, Spain
| | - Pilar Miralles
- Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - David Dalmau
- Hospital Universitari Mutua Terrasa, Terrasa, Spain
| | - Juan Luis Gómez
- Hospital Universitario de Canarias, Santa Cruz de Tenerife, Spain
| | - Miguel Górgolas
- Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain
| | - Alfonso Cabello
- Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain
| | - Salvador Resino
- Instituto de Salud Carlos III, Madrid, Spain
- * E-mail: , (JMB); (SR)
| | - José M. Benito
- HIV and Viral Hepatitis Research Laboratory, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz, Universidad Autónoma de Madrid (IIS-FJD, UAM), Madrid, Spain
- Hospital Universitario Rey Juan Carlos, Móstoles (Madrid), Spain
- * E-mail: , (JMB); (SR)
| | - Norma Rallón
- HIV and Viral Hepatitis Research Laboratory, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz, Universidad Autónoma de Madrid (IIS-FJD, UAM), Madrid, Spain
- Hospital Universitario Rey Juan Carlos, Móstoles (Madrid), Spain
| | | |
Collapse
|
3
|
Dahiya S, Irish BP, Nonnemacher MR, Wigdahl B. Genetic variation and HIV-associated neurologic disease. Adv Virus Res 2013; 87:183-240. [PMID: 23809924 DOI: 10.1016/b978-0-12-407698-3.00006-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
HIV-associated neurologic disease continues to be a significant complication in the era of highly active antiretroviral therapy. A substantial subset of the HIV-infected population shows impaired neuropsychological performance as a result of HIV-mediated neuroinflammation and eventual central nervous system (CNS) injury. CNS compartmentalization of HIV, coupled with the evolution of genetically isolated populations in the CNS, is responsible for poor prognosis in patients with AIDS, warranting further investigation and possible additions to the current therapeutic strategy. This chapter reviews key advances in the field of neuropathogenesis and studies that have highlighted how molecular diversity within the HIV genome may impact HIV-associated neurologic disease. We also discuss the possible functional implications of genetic variation within the viral promoter and possibly other regions of the viral genome, especially in the cells of monocyte-macrophage lineage, which are arguably key cellular players in HIV-associated CNS disease.
Collapse
Affiliation(s)
- Satinder Dahiya
- Department of Microbiology and Immunology, Center for Molecular Virology and Translational Neuroscience, Institute for Molecular Medicine and Infectious Disease, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA
| | - Bryan P Irish
- Department of Microbiology and Immunology, Center for Molecular Virology and Translational Neuroscience, Institute for Molecular Medicine and Infectious Disease, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA
| | - Michael R Nonnemacher
- Department of Microbiology and Immunology, Center for Molecular Virology and Translational Neuroscience, Institute for Molecular Medicine and Infectious Disease, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA
| | - Brian Wigdahl
- Department of Microbiology and Immunology, Center for Molecular Virology and Translational Neuroscience, Institute for Molecular Medicine and Infectious Disease, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA
| |
Collapse
|
4
|
Despriet DDG, Bergen AAB, Merriam JE, Zernant J, Barile GR, Smith RT, Barbazetto IA, van Soest S, Bakker A, de Jong PTVM, Allikmets R, Klaver CCW. Comprehensive analysis of the candidate genes CCL2, CCR2, and TLR4 in age-related macular degeneration. Invest Ophthalmol Vis Sci 2008; 49:364-71. [PMID: 18172114 DOI: 10.1167/iovs.07-0656] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
PURPOSE To determine whether variants in the candidate genes TLR4, CCL2, and CCR2 are associated with age-related macular degeneration (AMD). METHODS This study was performed in two independent Caucasian populations that included 357 cases and 173 controls from the Netherlands and 368 cases and 368 controls from the United States. Exon 4 of the TLR4 gene and the promoter, all exons, and flanking intronic regions of the CCL2 and CCR2 genes were analyzed in the Dutch study and common variants were validated in the U.S. study. Quantitative (q)PCR reactions were performed to evaluate expression of these genes in laser-dissected retinal pigment epithelium from 13 donor AMD and 13 control eyes. RESULTS Analysis of single nucleotide polymorphisms (SNPs) in the TLR4 gene did not show a significant association between D299G or T399I and AMD, nor did haplotypes containing these variants. Univariate analyses of the SNPs in CCL2 and CCR2 did not demonstrate an association with AMD. For CCR2, haplotype frequencies were not significantly different between cases and controls. For CCL2, one haplotype containing the minor allele of C35C was significantly associated with AMD (P = 0.03), but this did not sustain after adjustment for multiple testing (q = 0.30). Expression analysis did not demonstrate altered RNA expression of CCL2 and CCR2 in the retinal pigment epithelium from AMD eyes (for CCL2 P = 0.62; for CCR2 P = 0.97). CONCLUSIONS No evidence was found of an association between TLR4, CCR2, and CCL2 and AMD, which implies that the common genetic variation in these genes does not play a significant role in the etiology of AMD.
Collapse
Affiliation(s)
- Dominiek D G Despriet
- Department of Clinical and Molecular Ophthalmogenetics, Netherlands Institute for Neuroscience, Royal Netherlands Academy of Arts and Sciences (KNAW), Amsterdam, The Netherlands
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
5
|
Viladés C, Broch M, Plana M, Domingo P, Alonso-Villaverde C, Pedrol E, Knobel H, Dalmau D, Peraire J, Gutiérrez C, López A, Sambeat MA, Olona M, Garcia F, Richart C, Gatell JM, Vidal F. Effect of Genetic Variants of CCR2 and CCL2 on the Natural History of HIV-1 Infection. J Acquir Immune Defic Syndr 2007; 44:132-8. [PMID: 17091019 DOI: 10.1097/qai.0b013e31802b3147] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND OBJECTIVES Polymorphisms in the genes that encode for the CCR2 chemokine receptor and its natural ligand CCL2 have been shown to influence the natural history of HIV-1 infection, although data are inconsistent. Our aim was to determine whether functionally active CCR2 and CCL2 genetic variants influence the risk of infection and disease progression in a cohort of white Spaniards. PATIENTS AND METHODS This was a multicenter genetic association case-control study. Two single nucleotide polymorphisms (SNPs), V64I (G > A) of the CCR2 gene and -2518 (A > G) of the CCL2 gene, were assessed in 318 individuals: 73 HIV-1-infected long-term nonprogressors (LTNPs) of >16 years duration, 109 HIV-1-infected usual progressors (UPs), 36 heavily exposed to HIV-1 but uninfected individuals (EUs), and 100 control subjects. The distribution of the CCR5Delta32 allele was also assessed. Genotyping was performed using polymerase chain reaction (PCR) restriction fragment length polymorphisms (RFLPs) or PCR and automatic sequencing analysis methods on white blood cell DNA. Genotype and allele frequencies were compared by the chi2 test and the Fisher exact test. RESULTS CCR2 genotype distribution and allele frequencies showed nonsignificant differences between groups. The distribution of CCL2 alleles showed no significant differences between groups. HIV-1-infected individuals had, however, a significantly higher prevalence of the variant homozygous CCL2 GG genotype compared with EUs (P = 0.02). This result persisted when we studied only individuals with wild-type CCR5. Genotype and allele distribution of CCL2 was similar in HIV-1-infected UPs and LTNPs. CONCLUSIONS In our cohort of white Spaniards, homozygosity for the variant CCL2-2518GG genotype is overrepresented in HIV-1-infected subjects.
Collapse
Affiliation(s)
- Consuelo Viladés
- Department of Internal Medicine, Infectious Diseases and AIDS Research unit, Hospital Universitari de Tarragona Joan XXIII and Universitat Rovira i Virgili, Tarragona, Spain
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|