鸟苷酸结合蛋白1(Guanylate-binding protein 1,GBP1)为一种干扰素诱导蛋白,其属于鸟苷酸结合蛋白家族的一员。GBP1在抗病原微生物与抗肿瘤等多种生物学反应中发挥着重要作用。随着对GBP1的深入研究,发现IFN-α、IFN-β、IFN-γ、IL1α、IL1β、TNF-α和LPS均能够诱导GBP1的表达;因此,GBP1发挥的生物学效应也越来越广泛,并逐步地被挖掘和展现出来。尤其是GBP1发挥的抗病原微生物与抗肿瘤功能受到了极为广泛的关注。本论文综述了GBP1的分子结构、生物学活性、抗病原微生物特性以及已发现的一些其他功能的研究进展,为GBP1的后续研究提供参考和依据。
Foot-and-mouth disease virus(FMDV) is the causative agent of a highly contagious disease in livestock. The viral proteinaseL^(rop) of FMDV is involved in pathogenicity, and mutation of theL^(rop) SAP domain reduces FMDV pathogenicity in pigs. To determine the gene expression profiles associated with decreased pathogenicity in porcine cells, we performed transcriptome analysis using next-generation sequencing technology and compared differentially expressed genes in SK6 cells infected with FMDV containingL^(rop) with either a wild-type or mutated version of the SAP domain. This analysis yielded 1,853 genes that exhibited a ≥ 2-fold change in expression and was validated by real-time quantitative PCR detection of several differentially expressed genes. Many of the differentially expressed genes correlated with antiviral responses corresponded to genes associated with transcription factors, immune regulation, cytokine production, inflammatory response, and apoptosis. Alterations in gene expression profiles may be responsible for the variations in pathogenicity observed between the two FMDV variants. Our results provided genes of interest for the further study of antiviral pathways and pathogenic mechanisms related to FMDV L^(rop).
