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Title: | IL-7/IL-7R gene variants impact circulating IL-7/IL-7R homeostasis and ART-associated immune recovery status |
Authors: | Ceausu, Andra; Rodríguez-Gallego, Esther; Peraire, Joaquim; López-Dupla, Miguel; Domingo, Pere; Viladés, Consuelo; Vidal-González, Judit; Peraire, Maria; Perpiñán, Carles; Pacheco, Yolanda M. CSIC ORCID; Veloso, Sergi; Alba, Verónica; Vargas, Montserrat; Castellano, Alfonso J.; Ruiz-Mateos, Ezequiel CSIC ORCID; Mallolas, Josep; Vidal, Francesc; Rull, Anna | Issue Date: | 31-Oct-2019 | Publisher: | Springer Nature | Citation: | Scientific Reports 9: 15722 (2019) | Abstract: | A relationship between polymorphisms in genes encoding interleukin 7 (IL-7) and its cellular receptor (IL-7R) and antiretroviral therapy (ART)-associated immune recovery in HIV subjects has been previously reported. However, details of this relationship remain unclear, and the association of these polymorphisms with circulating IL-7/IL-7R levels is scarce. Here, we explored whether IL-7/IL-7R axis was associated with quantitative CD4+ T-cell recovery in HIV-infected subjects. IL-7/IL-7R polymorphisms were assessed by genotyping, and multiple inheritance models were used to estimate both, their association with low pre-ART CD4+ T-cell counts and incomplete immune recovery status after 48 weeks of suppressive ART. Integrated data from genetic variants association and soluble plasma IL-7/IL-7R quantification suggest that IL-7/IL-7R genotype expression could alter the homeostatic balance between soluble and membrane-bound receptors. The haplotype analyses indicates that allele combinations impacts pre-ART circulating CD4+ T-cell counts, immune recovery status and the absolute increment of CD4+ T-cell counts. The knowledge about how IL-7/IL-7R axis is related to quantitative CD4+ T-cell recovery and immune recovery status after initiating ART could be useful regarding T-cell reservoirs investigations in HIV subjects. | Publisher version (URL): | https://doi.org/10.1038/s41598-019-52025-8 | URI: | http://hdl.handle.net/10261/212138 | DOI: | 10.1038/s41598-019-52025-8 | E-ISSN: | 2045-2322 |
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