Department of Microbiology and Molecular Genetics, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
mBio. 2023 Dec 19;14(6):e0245123. doi: 10.1128/mbio.02451-23. Epub 2023 Nov 8.
is a bacterial pathogen capable of causing a wide variety of disease in humans. is unique in its ability to resist the host immune response, including the antibacterial compound known as nitric oxide (NO·). We used an RNA-sequencing approach to better understand the impact of NO· on in different environments. We discovered that inorganic phosphate transport is induced by the presence of NO·. Phosphate is important for the generation of energy from glucose, a carbon source favored by . We show that the absence of these phosphate transporters causes lowered energy levels in . We find that these phosphate transporters are essential for to grow in the presence of NO· and to cause infection. Our work here contributes significantly to our understanding of NO· resistance and provides a new context in which phosphate transporters are essential.
是一种能够引起人类多种疾病的细菌病原体。它的独特之处在于能够抵抗宿主的免疫反应,包括一种被称为一氧化氮(NO·)的抗菌化合物。我们使用 RNA 测序方法来更好地了解 NO·对不同环境下的影响。我们发现,无机磷酸盐的运输是由 NO·的存在诱导的。磷酸盐对从葡萄糖中产生能量很重要,而葡萄糖是 的碳源。我们表明,这些磷酸盐转运体的缺失会导致 能量水平降低。我们发现,这些磷酸盐转运体对于 在存在 NO·的情况下生长和引起感染是必不可少的。我们在这里的工作对我们理解 对 NO·的抵抗有重要贡献,并为磷酸盐转运体必不可少的新背景提供了依据。