单核苷酸多态性
HBeAg
基因型
医学
聚乙二醇干扰素
干扰素
免疫学
SOCS3
乙型肝炎病毒
内科学
基因
生物
慢性肝炎
病毒
乙型肝炎表面抗原
遗传学
利巴韦林
癌症
抑制器
作者
Jianhui Guo,Shaoying Guo,Tianbin Chen,Yongbin Zeng,Ya Fu,Qishui Ou
标识
DOI:10.3389/fimmu.2024.1488055
摘要
Background The varying individual responses to Pegylated interferon-α (Peg-IFNα) in patients with chronic hepatitis B (CHB) pose significant hurdles in treatment optimization, and the underlying mechanisms remain unclear. Objective We aimed to identify genetic polymorphisms influencing the efficacy of Peg-IFNα in patients with HBeAg-positive CHB, with the goal to predict Peg-IFNα response before treatment. Methods We employed an Asian Screening Array analysis involving 124 HBeAg-positive CHB patients treated with Peg-IFNα. We conducted assessment of immunological markers and mRNA expression of pivotal genes, establishing correlations with SNPs, functional genes of SNPs, and efficacy of Peg-IFNα therapy. In vitro experiments were performed to verify the functional involvement of the candidate SNPs. Results The G allele presented in rs2278420 and rs6509607 were significantly more common in patients who achieved a complete response (CR) compared to those who had a suboptimal response (SR), and linked to an increased rates of HBeAg loss following Peg-IFNα treatment (all p < 0.05). Additionally, the mRNA level of ZNF350 varied notably across different genotypes of both SNPs as determined by eQTL analysis, and showed higher expression in patients achieved a SR (all p < 0.05). In vitro investigations with IFNα stimulation showed that the mRNA level of SOCS3 was elevated in patients with rs2278420 genotype AA, similarly, mRNA levels of PKR, STAT2, SOCS1, SOCS3, PIAS1, PTPN6 and TRIM8 were heightened in patients with rs6509607 genotype AA compared to those with genotypes (AG+GG) (all p < 0.05). Conclusion The G allele of rs2278420 and rs6509607 were associated with mRNA level of ZNF350, with an increased probability of Peg-IFNα response in HBeAg-positive CHB patients, likely through the modulation of JAK-STAT signaling pathway.
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