Highlights ► Production of tumor necrosis factor (TNF)-α and interferon (IFN)-γ may be influenced by gene polymorphisms of TNFA and PD1 . ► This study determined the associations of serum TNF-α and IFN-γ levels with TNFA and PD1 polymorphisms in chronic HBV patients and healthy controls. ► Patients with PD1 −606 AA genotype had lower TNF-α and IFN-γ levels. HBV patients with PD1 + 8669 GG genotype altered TNF-α to higher levels. ► HBV patients with PD1 −606/+8669 haplotype A/A or haplotype G/A tended to have significantly lower or higher TNF-α and IFN-γ levels, respectively. ► PD1 polymorphisms may influence PD-1 function and thus influence T-cell activation and function, leading to altered cytokines secretion.
/lp/elsevier/altered-tnf-and-ifn-levels-associated-with-pd1-but-not-tnfa-jaelbhUiON