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Kulmann-Leal B, Ellwanger JH, Chies JAB. CCR5Δ32 in Brazil: Impacts of a European Genetic Variant on a Highly Admixed Population. Front Immunol 2021; 12:758358. [PMID: 34956188 PMCID: PMC8703165 DOI: 10.3389/fimmu.2021.758358] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 11/23/2021] [Indexed: 01/10/2023] Open
Abstract
The genetic background of Brazilians encompasses Amerindian, African, and European components as a result of the colonization of an already Amerindian inhabited region by Europeans, associated to a massive influx of Africans. Other migratory flows introduced into the Brazilian population genetic components from Asia and the Middle East. Currently, Brazil has a highly admixed population and, therefore, the study of genetic factors in the context of health or disease in Brazil is a challenging and remarkably interesting subject. This phenomenon is exemplified by the genetic variant CCR5Δ32, a 32 base-pair deletion in the CCR5 gene. CCR5Δ32 originated in Europe, but the time of origin as well as the selective pressures that allowed the maintenance of this variant and the establishment of its current frequencies in the different human populations is still a field of debates. Due to its origin, the CCR5Δ32 allele frequency is high in European-derived populations (~10%) and low in Asian and African native human populations. In Brazil, the CCR5Δ32 allele frequency is intermediate (4-6%) and varies on the Brazilian States, depending on the migratory history of each region. CCR5 is a protein that regulates the activity of several immune cells, also acting as the main HIV-1 co-receptor. The CCR5 expression is influenced by CCR5Δ32 genotypes. No CCR5 expression is observed in CCR5Δ32 homozygous individuals. Thus, the CCR5Δ32 has particular effects on different diseases. At the population level, the effect that CCR5Δ32 has on European populations may be different than that observed in highly admixed populations. Besides less evident due to its low frequency in admixed groups, the effect of the CCR5Δ32 variant may be affected by other genetic traits. Understanding the effects of CCR5Δ32 on Brazilians is essential to predict the potential use of pharmacological CCR5 modulators in Brazil. Therefore, this study reviews the impacts of the CCR5Δ32 on the Brazilian population, considering infectious diseases, inflammatory conditions, and cancer. Finally, this article provides a general discussion concerning the impacts of a European-derived variant, the CCR5Δ32, on a highly admixed population.
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Affiliation(s)
| | | | - José Artur Bogo Chies
- Laboratório de Imunobiologia e Imunogenética, Programa de Pós-Graduação em Genética e Biologia Molecular (PPGBM), Departamento de Genética, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
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Zoshima T, Baba T, Tanabe Y, Ishida Y, Nakatani K, Nagata M, Mukaida N, Kawano M. CCR2- and CCR5-mediated macrophage infiltration contributes to glomerular endocapillary hypercellularity in antibody-induced lupus nephritis. Rheumatology (Oxford) 2021; 61:3033-3048. [PMID: 34747459 DOI: 10.1093/rheumatology/keab825] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 10/24/2021] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES Lupus nephritis comprises various glomerular lesions, including endocapillary hypercellularity with macrophage infiltration. In this study, we aimed to clarify the involvement of macrophage-tropic chemokine receptors in the pathogenesis of these glomerular lesions. METHODS MRL/lpr mouse-derived monoclonal IgG3 antibody-producing hybridomas, 2B11.3 and B1, were injected intraperitoneally into BALB/c mice (WT) to induce endocapillary hypercellularity and wire-loop lesions, respectively. The expression of chemokine and chemokine receptors was analyzed by quantitative real time PCR and immunofluorescence. The roles of chemokine receptors in these lesions were evaluated using chemokine receptor-deficient mice or a selective CCR5 antagonist, maraviroc. RESULTS 2B11.3 caused glomerular endocapillary hypercellularity with a significant number of glomerular CD68-positive macrophages. Further, enhanced expression of CCL2, CCL3, CCR2, CCR5, and CX3CR1 was observed in the renal cortex, compared with B1 injection, which induced wire-loop lesions. In 2B11.3-induced glomerular lesions, CD68-positive glomerular macrophages expressed CCL2, CCL3, CCR2, CCR5, and CX3CR1, while glomerular endothelial cells expressed CCL2, CCL3, CX3CL1, and CCR2. When 2B11.3 was injected, CCR2-/- and CCR5-/-, but not CX3CR1-/-, mice exhibited reduced endocapillary hypercellularity, attenuated glomerular macrophage infiltration, and improved serum blood urea nitrogen (BUN) levels. Only CCR2-/- mice developed wire-loop lesions. B1 injection caused wire-loop lesions in these chemokine receptor-deficient mice to a similar extent as WT. Maraviroc treatment reduced 2B11.3-induced endocapillary hypercellularity and improved serum BUN levels. CONCLUSION CCR2 and CCR5 regulate glomerular macrophage infiltration and contribute to the development of glomerular endocapillary hypercellularity in lupus nephritis. CCR5 inhibition can be a specific therapy for endocapillary hypercellularity without inducing wire-loop lesions.
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Affiliation(s)
- Takeshi Zoshima
- Department of Rheumatology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Tomohisa Baba
- Division of Molecular Bioregulation, Cancer Research Institute, Kanazawa University, Kanazawa, Japan
| | - Yamato Tanabe
- Division of Molecular Bioregulation, Cancer Research Institute, Kanazawa University, Kanazawa, Japan
| | - Yuko Ishida
- Department of Forensic Medicine, Wakayama Medical University, Wakayama, Japan
| | - Kimihiko Nakatani
- Department of Nephrology, Kyoto Yamashiro General Medical Center, Kizugawa, Japan
| | - Michio Nagata
- Kidney and Vascular Pathology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Naofumi Mukaida
- Division of Molecular Bioregulation, Cancer Research Institute, Kanazawa University, Kanazawa, Japan.,Department of Forensic Medicine, Wakayama Medical University, Wakayama, Japan
| | - Mitsuhiro Kawano
- Department of Rheumatology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
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Stadtlober NP, Flauzino T, Santos LFDRF, Iriyoda TMV, Costa NT, Lozovoy MAB, Reiche EMV, Simão ANC. TGFB1 +869 T > C (rs1800470) variant is independently associated with susceptibility, laboratory activity, and TGF-β1 in patients with systemic lupus erythematosus. Autoimmunity 2021; 54:569-575. [PMID: 34519592 DOI: 10.1080/08916934.2021.1975680] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The aim of this study was to evaluate the association of the +869 T > C (rs1800470) and -509 C > T (rs1800469) TGFB1 variants, individually or in haplotypes structure, with susceptibility, autoantibodies, disease activity, and TGF-β1 plasma levels in patients with systemic lupus erythematosus (SLE). The study included 203 patients with SLE and 165 healthy controls. TGFB1 variants were determined by real-time polymerase chain reaction (qPCR). Plasma levels of TGF-β1 were determined using immunofluorimetric assay. The TGFB1 + 869 CC genotype was associated with SLE susceptibility (OR: 1.710, 95%CI: 1.020-2.866, p = 0.042) and with reduction of C4 (p = 0.040) and TGF-β1 levels (p = 0.044). In addition, patients with TGFB1 + 869 TC and CC genotypes and positive anti-dsDNA had lower TGF-β1 levels than those with TT (p = 0.004). TGFB1 -509 TT genotype was associated with reduced levels of C4 (p = 0.032). There was no association between haplotypes and clinical and laboratory parameters. Our data demonstrated that the TGFB1 + 869 T > C variant could be used as a genetic marker for SLE susceptibility and both variants as predictors of laboratory activity. This is the first study to demonstrate that TGF-β1 levels could be modulated by the interaction between TGFB1 + 869 C allele, in homozygosity, or heterozygosity, and the presence of anti-dsDNA.
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Affiliation(s)
| | - Tamires Flauzino
- Laboratory of Research in Applied Immunology, State University of Londrina, Londrina, Brazil
| | | | | | | | - Marcell Alysson Batisti Lozovoy
- Department of Pathology, Clinical Analysis and Toxicology, Laboratory of Research in Applied Immunology, State University of Londrina, Londrina, Brazil
| | - Edna Maria Vissoci Reiche
- Department of Pathology, Clinical Analysis and Toxicology, Laboratory of Research in Applied Immunology, State University of Londrina, Londrina, Brazil
| | - Andréa Name Colado Simão
- Department of Pathology, Clinical Analysis and Toxicology, Laboratory of Research in Applied Immunology, State University of Londrina, Londrina, Brazil
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Variability of the rs333 in Polish patients with lupus erythematosus. Postepy Dermatol Alergol 2021; 38:131-136. [PMID: 34408579 PMCID: PMC8362790 DOI: 10.5114/ada.2021.104288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 09/25/2020] [Indexed: 11/22/2022] Open
Abstract
Introduction Lupus erythematosus (LE) is an autoimmune disease with a strong influence of genetic and environmental factors. C-C motif chemokine receptor 5 (CCR5) gene expression may affect the development and intensity of LE. Aim To evaluate the possible association between the 32bp deletion in rs333 locus located within the CCR5 gene and the development of LE or the occurrence of various clinical symptoms in the course of the disease. Material and methods One hundred and twenty patients with LE (77 with systemic lupus erythematosus (SLE) and 43 with discoid lupus erythematosus (DLE)) and 100 healthy controls from the Polish population were genotyped for deletion in rs333. Results 32 bp deletion in the rs333 was significantly more frequent among healthy individuals than DLE patients. Moreover, heterozygotes and homozygotes with deletion in rs333 were significantly more frequent within the control group than the group of patients with discoid lupus erythematosus. In contrast, any statistically significant differences in allele or genotype frequencies between healthy persons and SLE patients were observed. Furthermore, nucleotide sequence variability of rs333 was not associated with certain clinical symptoms of LE patients. Conclusions Deletion in the rs333 might be a protective factor for DLE, but not SLE in the Polish population. Nevertheless further studies performed on larger populations are needed to confirm these observations.
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Shao LN, Zhou SH, Wang N, Zhang ST, Liu M. Association between the Genetic Polymorphisms of CCL2, CCL5, CCL8, CCR2, and CCR5 with Chronic Hepatitis C Virus Infection in the Chinese Han Population. Immunol Invest 2021; 51:1182-1197. [PMID: 33902378 DOI: 10.1080/08820139.2021.1916524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Background: Hepatitis C virus (HCV) infection is a global public health burden. Chronic HCV infection leads to the development of fibrosis, cirrhosis, liver cancer, and liver failure over time.Methods: A total of 250 patients with chronic HCV infection and 299 healthy blood donors were recruited. Sixteen candidate single nucleotide polymorphisms (SNPs) in chemokine (C-C motif) ligand 2 (CCL2), CCL5, CCL8, C-C chemokine receptor 2 (CCR2), and CCR5 were genotyped in all participants.Results: The rs1024610 AA genotype was significantly associated with decreased susceptibility to chronic HCV infection. Aspartate aminotransferase (AST) levels, AST/platelet ratio index, and the fibrosis 4 score were significantly lower in the CCL2 rs1024610 T allele and haplotype ATGC carriers. Moreover, expression levels of collagen IV (C-IV) and laminin (LN) were significantly higher in patients with the CCL5 rs2280788 C allele compared to the non-carriers. Similarly, the expression levels of C-IV, LN, and hyaluronic acid were significantly higher in patients with the CCL5 haplotype, TGCT. No significant differences were identified between the SNPs/haplotypes and plasma levels of CCL2, CCL5, CCL8, CCR2, and CCR5 in the healthy controls, and the rs1024610 allele alteration had no effect on CCL2 promoter activity.Conclusions: This is the first study to report an association between CCL2 rs1024610 and the risk of chronic HCV infection in the Chinese Han population. rs1024610 and ATGC haplotype in CCL2 were reasonable candidate markers of liver abnormalities. rs2280788 and TGCT haplotype in CCL5 are likely to play a significant role in liver fibrosis during chronic HCV infection.
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Affiliation(s)
| | | | - Ni Wang
- Dalian Blood Center, Dalian, Liaoning, China
| | | | - Ming Liu
- Department of Cell Biology, Dalian Medical University, Dalian, Liaoning, China
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Rzeszotarska E, Sowinska A, Stypinska B, Walczuk E, Wajda A, Lutkowska A, Felis-Giemza A, Olesinska M, Puszczewicz M, Majewski D, Jagodzinski PP, Czerewaty M, Malinowski D, Pawlik A, Jaronczyk M, Paradowska-Gorycka A. The Role of MECP2 and CCR5 Polymorphisms on the Development and Course of Systemic Lupus Erythematosus. Biomolecules 2020; 10:biom10030494. [PMID: 32214033 PMCID: PMC7175371 DOI: 10.3390/biom10030494] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/19/2020] [Accepted: 03/22/2020] [Indexed: 12/14/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is a chronic and systemic autoimmune disease. SLE is described by production of autoantibodies and causes damage of many organs. T-cells play a crucial role in SLE pathogenesis. T-cells intensify inflammation through a number of processes, which leads to autoimmunization. CCR5 and MECP2 genes are linked with T-cells and pathogenesis of SLE. Polymorphisms in these genes are related with the prognostic factors of risk of disease onset and disease severity. The aim of this study was to estimate the influence of polymorphisms in MECP2 and CCR5 genes on the development and course of systemic lupus erythematosus. We examined 137 SLE patients and 604 healthy controls. We studied polymorphisms for CCR5 gene: rs333 and for MECP2: rs2075596, rs1734787, rs17435, and rs2239464. We genotyped our MECP2 samples and we performed a restriction fragment length polymorphism (RFLP) analysis for CCR5 samples. We showed a risk factor for allele T in rs17435 and for allele A in rs2075596 in MECP2. We noticed that MECP2 rs2075596 G/A, rs1734787 C/A, rs17435 A/T, and rs2239464 G/A polymorphisms are more prevalent in SLE patients than in healthy controls. We believe that above-mentioned MECP2 polymorphisms can be considered as SLE susceptibility factor.
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Affiliation(s)
- Ewa Rzeszotarska
- Department of Molecular Biology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637 Warsaw, Poland; (E.R.); (B.S.); (E.W.); (A.W.)
| | - Anna Sowinska
- Department of Computer Science and Statistics, Poznan University of Medical Sciences, 60-806 Poznan, Poland;
| | - Barbara Stypinska
- Department of Molecular Biology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637 Warsaw, Poland; (E.R.); (B.S.); (E.W.); (A.W.)
| | - Ewa Walczuk
- Department of Molecular Biology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637 Warsaw, Poland; (E.R.); (B.S.); (E.W.); (A.W.)
| | - Anna Wajda
- Department of Molecular Biology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637 Warsaw, Poland; (E.R.); (B.S.); (E.W.); (A.W.)
| | - Anna Lutkowska
- Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (A.L.); (P.P.J.)
| | - Anna Felis-Giemza
- Department of Connective Tissue Diseases, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637 Warsaw, Poland; (A.F.-G.); (M.O.)
| | - Marzena Olesinska
- Department of Connective Tissue Diseases, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637 Warsaw, Poland; (A.F.-G.); (M.O.)
| | - Mariusz Puszczewicz
- Department of Rheumatology and Internal Diseases, Poznan University of Medical Science, 61-545 Poznan, Poland; (M.P.); (D.M.)
| | - Dominik Majewski
- Department of Rheumatology and Internal Diseases, Poznan University of Medical Science, 61-545 Poznan, Poland; (M.P.); (D.M.)
| | - Pawel Piotr Jagodzinski
- Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (A.L.); (P.P.J.)
| | - Michal Czerewaty
- Department of Physiology, Pomeranian Medical University, 70-111 Szczecin, Poland; (M.C.); (A.P.)
| | - Damian Malinowski
- Department of Pharmacokinetics and Therapeutic Drug Monitoring, Pomeranian Medical University, 70-111 Szczecin, Poland;
| | - Andrzej Pawlik
- Department of Physiology, Pomeranian Medical University, 70-111 Szczecin, Poland; (M.C.); (A.P.)
| | - Malgorzata Jaronczyk
- Department of Drug Biotechnology and Bioinformatics, National Medicines Institute, 30/34 Chelmska Str., 00-725 Warsaw, Poland;
| | - Agnieszka Paradowska-Gorycka
- Department of Molecular Biology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637 Warsaw, Poland; (E.R.); (B.S.); (E.W.); (A.W.)
- Correspondence:
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Rautenbach A, Williams AA. Metabolomics as an Approach to Characterise the Contrasting Roles of CCR5 in the Presence and Absence of Disease. Int J Mol Sci 2020; 21:E1472. [PMID: 32098198 PMCID: PMC7073144 DOI: 10.3390/ijms21041472] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 02/10/2020] [Accepted: 02/11/2020] [Indexed: 02/06/2023] Open
Abstract
Chemokine receptors such as C-C chemokine receptor 5 (CCR5) are activated through interaction with their ligands and are well known for their role in chemotaxis and signal transduction. While serving these roles, cellular responses are effected, hence the immune function of these molecules is established. Given the role of CCR5 in immune function and that the immune and metabolic systems are interlinked, subsequent immune-directed changes should be measurable at a metabolic level. Numerous investigations have reported on metabolic changes associated with CCR5 status in the presence of disease, so as to understand whether specific CCR5 genotypes, frequency and/or levels offer protection to the host or not. However, these metabolic changes were recorded using older conventional techniques. Depending on certain factors such as the disease model, the geography of the samples and/or the ethnic group under study, the role of CCR5 in disease differs. In addition, little is known about CCR5's role in the absence of an enhanced inflammatory state, such as when infection persists. Metabolomics is defined as the study of metabolites and informs on metabolic changes within living organisms as induced by various stimuli, such as the interaction of CCR5 with its ligand. Since metabolomics reflects the underlying biochemical activity and state of cells/tissues, this review proposes it as a tool to clarify the contrasting roles of CCR5.
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Affiliation(s)
| | - Aurelia A. Williams
- Human Metabolomics, North-West University, Private Bag X6001, Box 269, Potchefstroom 2531, South Africa
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Matos AR, Martins JSCC, Oliveira MDLA, Garcia CC, Siqueira MM. Human CCR5Δ32 (rs333) polymorphism has no influence on severity and mortality of influenza A(H1N1)pdm09 infection in Brazilian patients from the post pandemic period. INFECTION GENETICS AND EVOLUTION 2018; 67:55-59. [PMID: 30389547 DOI: 10.1016/j.meegid.2018.10.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 10/12/2018] [Accepted: 10/29/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUND Influenza is an acute and highly contagious viral respiratory infection that causes significant morbidity and mortality. The identification of host genetic factors associated with susceptibility and severity of influenza virus infection is of paramount importance. Previous studies evaluating the potential involvement of the CCR5Δ32 polymorphism (rs333), a 32 base pair deletion in CC motif chemokine receptor 5 (CCR5) gene, in severity and mortality of influenza A(H1N1)pdm09 infected individuals have been reported, but their results are quite conflicting. OBJECTIVES The aim of this study was the evaluation of the CCR5Δ32 frequency in individuals with mild, severe and fatal influenza A(H1N1)pdm09 infection and its putative association with clinical and epidemiologic data. PATIENTS/METHODS A total of 432 individuals were included in this study and classified according to their clinical status, into the following groups: influenza like illness (ILI) (n = 153); severe acute respiratory infection (SARI) (n = 173) and fatal (n = 106) cases. The samples were collected in the post pandemic period, from 2012 to 2018. Individuals were further stratified according to their clinical and epidemiological data. The CCR5Δ32 variant was genotyped by PCR amplification and a subset of samples was further submitted to Sanger sequencing. RESULTS The different clinical groups (ILI, SARI and fatal) presented similar distribution of wt/wt and wt/Δ32 genotypes and CCR5Δ32 allele frequencies. Genotype Δ32/Δ32 was not detected in our study. Additionally, no association between wt/wt and wt/Δ32 genotypes and dyspnea, a clinical factor for influenza complications was found. Similarly, no significant differences in the distribution of wt/wt and wt/Δ32 genotypes and CCR5Δ32 variant allele frequencies were observed in samples from the different Brazilian geographical regions. CONCLUSIONS The CCR5Δ32 variant does not influence the susceptibility to influenza A(H1N1)pdm09 severe disease or mortality in individuals from Brazil.
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Affiliation(s)
- Aline R Matos
- Laboratório de Vírus Respiratórios e do Sarampo, National Influenza Center (NIC)/World Health Organization (WHO), Instituto Oswaldo Cruz/Fiocruz, Rio de Janeiro, Brazil.
| | - Jéssica S C C Martins
- Laboratório de Vírus Respiratórios e do Sarampo, National Influenza Center (NIC)/World Health Organization (WHO), Instituto Oswaldo Cruz/Fiocruz, Rio de Janeiro, Brazil
| | - Maria de Lourdes A Oliveira
- Laboratório de Desenvolvimento Tecnológico em Virologia, Instituto Oswaldo Cruz/Fiocruz, Rio de Janeiro, Brazil
| | - Cristiana C Garcia
- Laboratório de Vírus Respiratórios e do Sarampo, National Influenza Center (NIC)/World Health Organization (WHO), Instituto Oswaldo Cruz/Fiocruz, Rio de Janeiro, Brazil
| | - Marilda M Siqueira
- Laboratório de Vírus Respiratórios e do Sarampo, National Influenza Center (NIC)/World Health Organization (WHO), Instituto Oswaldo Cruz/Fiocruz, Rio de Janeiro, Brazil
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Nerys-Junior A, Braga-Dias LP, Pezzuto P, Cotta-de-Almeida V, Tanuri A. Comparison of the editing patterns and editing efficiencies of TALEN and CRISPR-Cas9 when targeting the human CCR5 gene. Genet Mol Biol 2018; 41:167-179. [PMID: 29583154 PMCID: PMC5901495 DOI: 10.1590/1678-4685-gmb-2017-0065] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 06/07/2017] [Indexed: 01/02/2023] Open
Abstract
The human C-C chemokine receptor type-5 (CCR5) is the major transmembrane
co-receptor that mediates HIV-1 entry into target CD4+ cells. Gene therapy to
knock-out the CCR5 gene has shown encouraging results in providing a functional
cure for HIV-1 infection. In gene therapy strategies, the initial region of the
CCR5 gene is a hotspot for producing functional gene knock-out. Such target gene
editing can be done using programmable endonucleases such as transcription
activator-like effector nucleases (TALEN) or clustered regularly interspaced
short palindromic repeats (CRISPR-Cas9). These two gene editing approaches are
the most modern and effective tools for precise gene modification. However,
little is known of potential differences in the efficiencies of TALEN and
CRISPR-Cas9 for editing the beginning of the CCR5 gene. To examine which of
these two methods is best for gene therapy, we compared the patterns and amount
of editing at the beginning of the CCR5 gene using TALEN and CRISPR-Cas9
followed by DNA sequencing. This comparison revealed that CRISPR-Cas9 mediated
the sorting of cells that contained 4.8 times more gene editing than TALEN+
transfected cells.
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Affiliation(s)
- Arildo Nerys-Junior
- Laboratório de Virologia Molecular, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
| | - Luciene P Braga-Dias
- Laboratório do Serviço de Biotecnologia e Desenvolvimento Animal, Instituto de Ciência e Tecnologia em Biomodelos, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - Paula Pezzuto
- Laboratório de Virologia Molecular, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
| | | | - Amilcar Tanuri
- Laboratório de Virologia Molecular, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
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Heydarifard Z, Tabarraei A, Abdollahi N, Moradi A, Khanjari Y. Evaluation of CCR5Δ32 Polymorphism in Patients with Systemic Lupus Erythematosus and Healthy Individuals. MEDICAL LABORATORY JOURNAL 2018. [DOI: 10.29252/mlj.12.2.38] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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Qidwai T. Chemokine genetic polymorphism in human health and disease. Immunol Lett 2016; 176:128-38. [PMID: 27262929 DOI: 10.1016/j.imlet.2016.05.018] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 05/16/2016] [Accepted: 05/31/2016] [Indexed: 12/11/2022]
Abstract
Chemokine receptor-ligand interaction regulates transmigration of lymphocytes and monocytes from circulation to the inflammatory sites. CC chemokine receptors, chemokine receptor 2(CCR2) and 5 (CCR5) are important in recruitment of immune cells as well as non-immune cells under pathological condition. CCR2, CCR5 and their ligands (CCL2 and CCL5) are major contributor to the autoimmune and inflammatory diseases and cancer. Currently studies are being done to explore genetic variations in chemokine genes and their involvement in diseases that could make clear disease severity and deaths. Conflicting results of studies in different populations and diseases promoted to investigate chemokines genetic polymorphisms in miscellaneous diseases. This study is aimed to evaluate the influence of chemokines genetic polymorphisms in pathogenesis and outcome of prevalent non infectious diseases. Present study demonstrates the likely role played by genetic variations in drug response and evolution. Moreover this study highlights chemokine as therapeutic target and diagnostic biomarker in pathological condition.
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Affiliation(s)
- Tabish Qidwai
- Department of Biotechnology, Babasaheb Bhimrao Ambedkar University, Lucknow 226025, India.
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