This study was performed to assess the association of CCR5Δ32 and SDF1-3'A polymorphisms with immunological recovery failure and to investigate the influence of sociodemographic and clinical data on immune reconstitution in human immunodeficiency virus (HIV)-positive patients during antiretroviral therapy (ART). Two hundred and forty-eight HIV-positive patients under ART with undetectable plasma viral load (<50copies/mL) were enrolled in this study and classified into two groups according to their CD4+ T-cell count changes: immunological responders (CD4+ T-cell count gain ≥200/µL or ≥30% compared with baseline) and immunological non-responders (CD4+ T-cell count gain <200/µL or <30% compared with baseline). DNA extraction was performed followed by CCR5Δ32 and SDF1-3'A genotyping. Sociodemographic and clinical data were evaluated from medical records. The logistic regression model showed that heterozygosity for CCR5Δ32 allele and lower pre-treatment CD4+ T-cell count (<500cells/µL) were statistically associated with immunological recovery failure (OR=5.873, 95%CI=1.204-28.633, P=0.028 and OR=10.00, 95%CI=3.224-31.016, P=0.028, respectively). No association of SDF1-3'A polymorphism with immune reconstitution failure was found. Additionally, we observed that there was a statistically significant difference between lower CD4+ T-cell count and INR status than the IR group (Z=4.687, P<0.001). Our results demonstrated, through a logistic regression model, that CCR5Δ32 polymorphism and pre-treatment CD4+ T-cell count have significant influence on immune reconstitution of HIV-positive patients during ART. These findings highlight some immunological factors associated with poor CD4+ T-lymphocytes recovery, which affect immune response level of ART-treated HIV-positive patients.
Titolo: | CCR5 genotype and pre-treatment CD4+ T-cell count influence immunological recovery of HIV-positive patients during antiretroviral therapy |
Autori: | |
Data di pubblicazione: | 2020 |
Data ahead of print: | 10-mar-2020 |
Stato di pubblicazione: | Pubblicato |
Rivista: | |
Abstract: | This study was performed to assess the association of CCR5Δ32 and SDF1-3'A polymorphisms with immunological recovery failure and to investigate the influence of sociodemographic and clinical data on immune reconstitution in human immunodeficiency virus (HIV)-positive patients during antiretroviral therapy (ART). Two hundred and forty-eight HIV-positive patients under ART with undetectable plasma viral load (<50copies/mL) were enrolled in this study and classified into two groups according to their CD4+ T-cell count changes: immunological responders (CD4+ T-cell count gain ≥200/µL or ≥30% compared with baseline) and immunological non-responders (CD4+ T-cell count gain <200/µL or <30% compared with baseline). DNA extraction was performed followed by CCR5Δ32 and SDF1-3'A genotyping. Sociodemographic and clinical data were evaluated from medical records. The logistic regression model showed that heterozygosity for CCR5Δ32 allele and lower pre-treatment CD4+ T-cell count (<500cells/µL) were statistically associated with immunological recovery failure (OR=5.873, 95%CI=1.204-28.633, P=0.028 and OR=10.00, 95%CI=3.224-31.016, P=0.028, respectively). No association of SDF1-3'A polymorphism with immune reconstitution failure was found. Additionally, we observed that there was a statistically significant difference between lower CD4+ T-cell count and INR status than the IR group (Z=4.687, P<0.001). Our results demonstrated, through a logistic regression model, that CCR5Δ32 polymorphism and pre-treatment CD4+ T-cell count have significant influence on immune reconstitution of HIV-positive patients during ART. These findings highlight some immunological factors associated with poor CD4+ T-lymphocytes recovery, which affect immune response level of ART-treated HIV-positive patients. |
Handle: | http://hdl.handle.net/11368/2960777 |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.gene.2020.144568 |
URL: | https://www.sciencedirect.com/science/article/abs/pii/S0378111920302377?via=ihub |
Appare nelle tipologie: | 1.1 Articolo in Rivista |
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