Mathematical Modelling of Pseudomonas aeruginosa L-forms Reveals Complex Interplay Between Host Defence Mechanisms and Putative Treatments

C. Spalding, Sandeep Shirgill, E. Taylor, A. Krachler, S. Jabbari
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Abstract

The bacterium Pseudomonas aeruginosa has been shown to undergo a morphological transition akin to L-forms under exposure to antibiotics, a process which may contribute to persistent infections. With the further consideration of antibiotic-resistance mechanisms, this transition renders the design of effective treatment strategies challenging. Through a mathematical model, we illustrate that additionally incorporating the complexities of the host immune response can render somewhat surprising predictions from the simulations. In particular, scenarios arise whereby the addition of a treatment strategy to directly target the L-forms results in a worsened infection, while in others this treatment could turn an antibiotic-resistant infection from persistent to treatable. The study highlights the importance of understanding the in vivo interplay between immune cells and pathogens for successful treatment design.
铜绿假单胞菌L型的数学模型揭示了宿主防御机制和假定处理之间的复杂相互作用
铜绿假单胞菌已被证明在接触抗生素的情况下会经历类似于L型的形态转变,这一过程可能会导致持续感染。随着对抗生素耐药性机制的进一步考虑,这种转变使得有效治疗策略的设计具有挑战性。通过一个数学模型,我们说明了额外结合宿主免疫反应的复杂性可以从模拟中做出一些令人惊讶的预测。特别是,出现了这样的情况,即添加直接针对L型的治疗策略会导致感染恶化,而在其他情况下,这种治疗可能会将抗生素耐药性感染从持久性转变为可治疗性。这项研究强调了了解免疫细胞和病原体之间的体内相互作用对于成功设计治疗方案的重要性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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