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Title

IL-7/IL-7R gene variants impact circulating IL-7/IL-7R homeostasis and ART-associated immune recovery status

AuthorsCeausu, 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; Mallolas, Josep; Vidal, Francesc; Rull, Anna
Issue Date31-Oct-2019
PublisherSpringer Nature
CitationScientific Reports 9: 15722 (2019)
AbstractA 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
URIhttp://hdl.handle.net/10261/212138
DOIhttp://dx.doi.org/10.1038/s41598-019-52025-8
E-ISSN2045-2322
Appears in Collections:(IBIS) Artículos
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