Introduction: Hepatitis B Virus (HBV) infection is a global public health concern. The immune response in HBV represents a key
factor in patient outcome. However, the relationship between viral replication and host immune reactivity remains a matter of
Aim: The aim of our study was to investigate whether the cellular immune response of recently diagnosed and treatment na´ve chronic hepatitis B(CHB) patients may be influenced by the replicative status of HBV. Towards this aim, the correlation between HBV viral load, HBsAg quantification and peripheral T-cell subpopulations CD8+CD38+.
Methods: Proportions and absolute counts of CD8 CD38 T cells were determined using three-color flow cytometry in chronic hepatitis B patients (n=50) and healthy controls (n=35). Chronic hepatitis B patients were regularly followed for 48 weeks, during which period the T cell subsets, serum viral load and HBsAg quantitation were measured every 24 months.
Results: There was a high level of CD8+CD38+% during the pretreatment stage (Mean 32.4514, standard deviation (SD) 16.8007) compared to the control group (Mean 19.4628, SD 9.75555), p=0.000. Significant decreases in CD8 count were detected 12 months after treatment initiation of HBV therapy (Mean 1359.44, SD 724.362) compared to the control group (Mean 1944.13, SD 948.931), p=0.001. There is a significant correlation between CD8+CD38+ count and serum HBV DNA. A Positive correlation was found between CD8+CD38+ count and HBsAg quantitation.
Conclusion: There was a positive correlation between CD8+CD38+ T cells and HBsAg quantitation. The combined use of CD8+CD38+ T cells, HBsAg quantitation and HBV DNA assessment in patients with CHB may guide the clinicians as they guage the likelihood of treatment response.
Published Date: 2020-08-24; Received Date: 2020-08-03