Australian Infectious Disease Research Centre, School of Biological Sciences, The University of Queensland, Brisbane, Australia.
J Gen Virol. 2022 Jan;103(1). doi: 10.1099/jgv.0.001694.
Mosquito-borne flaviviruses are responsible for viral infections and represent a considerable public health burden. is the principal vector of dengue virus (DENV), therefore understanding the intrinsic virus-host interactions is vital, particularly in the presence of the endosymbiont which blocks virus replication in mosquitoes. Here, we examined the transcriptional response of -transinfected Aag2 cells to DENV infection. We identified differentially expressed immune genes that play a key role in the activation of anti-viral defence such as the Toll and immune deficiency pathways. Further, genes encoding cytosine and N-adenosine methyltransferases and SUMOylation, involved in post-transcriptional modifications, an antioxidant enzyme, and heat-shock response were up-regulated at the early stages of DENV infection and are reported here for the first time. Additionally, several long non-coding RNAs were among the differentially regulated genes. Our results provide insight into -transinfected 's initial virus recognition and transcriptional response to DENV infection.
蚊媒黄病毒可引起病毒性感染,是相当大的公共卫生负担。是登革病毒(DENV)的主要载体,因此了解内在的病毒-宿主相互作用至关重要,特别是在共生体的存在下,共生体能阻止病毒在蚊子中的复制。在这里,我们研究了 -转染的 Aag2 细胞对 DENV 感染的转录反应。我们确定了差异表达的免疫基因,这些基因在激活抗病毒防御中发挥关键作用,如 Toll 和免疫缺陷途径。此外,编码胞嘧啶和 N-腺苷甲基转移酶和 SUMO 化、参与转录后修饰、抗氧化酶和热休克反应的基因在 DENV 感染的早期阶段被上调,这是首次报道。此外,一些长非编码 RNA 也在差异调节基因之列。我们的研究结果提供了对 -转染的初始病毒识别和对 DENV 感染的转录反应的深入了解。