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Updated: Feb 23, 2026

Analysis of HBV-Specific CD4 T-cell Responses and Identification of HLA-DR-Restricted CD4 T-Cell Epitopes Based on a Peptide Matrix
Published on: October 20, 2021
Association of TNF-α and CCL5 with response to interferon-based therapy in patients with HCV 1 genotype
Dzmitry Danilau1, Dzmitry Litvinchuk1, Nikita Solovey1
1Belarusian State Medical University, Minsk, Belarus.
Aim Of The Study:
To evaluate the role of potential genetic predictors -308G/A TNF-α and -403G/A CCL5 in treatment for HCV 1 genotype.
Material And Methods:
Treatment results of 130 patients with chronic hepatitis C 1 genotype according to different genotypes of IL28B, CCL5, and TNF-α were analysed using multiple logistic regression.
Results:
IL28B genotypes CC/CT/TT were found in 27 (20.8%), 74 (56.9%), and 29 (22.3%) patients. Genotypes GG/GA/AA of -308G/A TNF-α were revealed in 98 (75.4%), 30 (23.1%), and 2 (1.5%) patients. Genotypes GG/GA/AA of -403G/A CCL5 were revealed in 86 (66.2%), 39 (30%), and 5 (3.8%) patients, respectively. The previously known effect of IL28B was observed. IL28B TT genotype decreased end of treatment response (EOTR) rates by a factor of 29.0 (95% CI: 6.4-183). The combination of CCL5 GG and IL28B CT genotypes increased the risk of failure to achieve EOTR by a factor of 28.5 (95% CI: 7.2-160). Genotypes GA and AA of TNF-α (-308) G/A SNP increased the risk of relapse in patients who achieved EOTR (OR = 9.4; 95% CI: 2.4-48).
Conclusions:
Practitioners may benefit from using these predictors when considering indications for the antiviral therapy and deciding on the treatment regimen.
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