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Dysregulation of the Immune System in HIV/HCV-Coinfected Patients According to Liver Stiffness Status.


ABSTRACT:

Background

Advanced cirrhosis is related to alterations in immunity. We aimed to evaluate the levels of peripheral CD4? T cells (Tregs) and plasma cytokine in patients coinfected with human immunodeficiency virus and hepatitis C virus (HIV/HCV) according to liver fibrosis stages [evaluated as liver stiffness measure (LSM)] and their linear relationship.

Methods

We performed a cross-sectional study on 238 HIV/HCV-coinfected patients (119 had <12.5 kPa, 73 had 12.5?25 kPa, and 46 had >25 kPa). Peripheral T-cell subsets were phenotyped by flow cytometry, plasma biomarkers were assessed by multiplex immunoassays, and LSM was assessed by transient elastography. Results: We found HIV/HCV-coinfected patients had higher values of CD4? Tregs (p < 0.001), memory Tregs (p ? 0.001), and plasma cytokine levels [IFN-? (p ? 0.05) and IL-10 (p ? 0.01)] compared with healthy donors and HIV-monoinfected patients. In the multivariate analysis, higher LSM values were associated with reduced levels of IL-10 (adjusted arithmetic mean ratio (aAMR) = 0.83; p = 0.019), IL-2 (aAMR = 0.78; p = 0.017), TNF-? (aAMR = 0.67; p < 0.001), and IL-17A (aAMR = 0.75; p = 0.006). When we focus on HIV/HCV-coinfected patients analyzed by LSM strata, patients with ?25 kPa had lower values of IL-2 (aAMR = 0.66; p = 0.021), TNF-? (aAMR = 0.565; p = 0.003), and IL-17A (aAMR = 0.58; p = 0.003) than patients with <12.5 kPa.

Conclusion

HIV/HCV-coinfected patients showed an immunosuppressive profile compared to healthy controls and HIV-monoinfected patients. Additionally, HIV/HCV-coinfected patients with advanced cirrhosis (LSM ? 25 kPa) had the lowest plasma values of cytokines related to Th1 (IL-2 and TNF-?) and Th17 (IL-17A) response.

SUBMITTER: Garcia-Broncano P 

PROVIDER: S-EPMC6262386 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature

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<h4>Background</h4>Advanced cirrhosis is related to alterations in immunity. We aimed to evaluate the levels of peripheral CD4⁺ T cells (Tregs) and plasma cytokine in patients coinfected with human immunodeficiency virus and hepatitis C virus (HIV/HCV) according to liver fibrosis stages [evaluated as liver stiffness measure (LSM)] and their linear relationship.<h4>Methods</h4>We performed a cross-sectional study on 238 HIV/HCV-coinfected patients (119 had <12.5 kPa, 73 had 12.5⁻25 kPa, and 46 ha  ...[more]

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