Walker Emma, van Niekerk Stacy, Hanning Kyrin, Kelton William, Hicks Joanna
Te Huataki Waiora, School of Health, University of Waikato, Hamilton, New Zealand.
Te Aka Mātuatua School of Science, University of Waikato, Hamilton, New Zealand.
Front Microbiol. 2023 Feb 3;14:1119834. doi: 10.3389/fmicb.2023.1119834. eCollection 2023.
(also known as gonococcus) has been causing gonorrhoea in humans since ancient Egyptian times. Today, global gonorrhoea infections are rising at an alarming rate, in concert with an increasing number of antimicrobial-resistant strains. The gonococcus has concurrently evolved several intricate mechanisms that promote pathogenesis by evading both host immunity and defeating common therapeutic interventions. Central to these adaptations is the ability of the gonococcus to manipulate various host microenvironments upon infection. For example, the gonococcus can survive within neutrophils through direct regulation of both the oxidative burst response and maturation of the phagosome; a concerning trait given the important role neutrophils have in defending against invading pathogens. Hence, a detailed understanding of how exploits the human host to establish and maintain infection is crucial for combating this pathogen. This review summarizes the mechanisms behind host manipulation, with a central focus on the exploitation of host epithelial cell signaling to promote colonization and invasion of the epithelial lining, the modulation of the host immune response to evade both innate and adaptive defenses, and the manipulation of host cell death pathways to both assist colonization and combat antimicrobial activities of innate immune cells. Collectively, these pathways act in concert to enable to colonize and invade a wide array of host tissues, both establishing and disseminating gonococcal infection.
(也称为淋球菌)自古埃及时代以来就一直在人类中引起淋病。如今,全球淋病感染率正以惊人的速度上升,与此同时,对抗菌素耐药的菌株数量也在增加。淋球菌同时进化出了几种复杂的机制,通过逃避宿主免疫和战胜常见的治疗干预措施来促进发病机制。这些适应性变化的核心是淋球菌在感染时操纵各种宿主微环境的能力。例如,淋球菌可以通过直接调节氧化爆发反应和吞噬体成熟在中性粒细胞内存活;考虑到中性粒细胞在抵御入侵病原体方面的重要作用,这是一个令人担忧的特征。因此,详细了解淋球菌如何利用人类宿主来建立和维持感染对于对抗这种病原体至关重要。本综述总结了宿主操纵背后的机制,重点关注利用宿主上皮细胞信号传导来促进上皮衬里的定植和入侵、调节宿主免疫反应以逃避先天和适应性防御,以及操纵宿主细胞死亡途径以协助定植和对抗先天免疫细胞的抗菌活性。总的来说,这些途径协同作用,使淋球菌能够定植和入侵多种宿主组织,从而建立和传播淋球菌感染。