Section of Paediatric Infectious Disease, Department of Infectious Disease, Imperial College London, London, United Kingdom.
Centre for Paediatrics and Child Health, Imperial College London, London, United Kingdom.
Elife. 2022 Jan 10;11:e70763. doi: 10.7554/eLife.70763.
Recent initiatives to improve translation of findings from animal models to human disease have focussed on reproducibility but quantifying the relevance of animal models remains a challenge. Here, we use comparative transcriptomics of blood to evaluate the systemic host response and its concordance between humans with different clinical manifestations of malaria and five commonly used mouse models. 17XL infection of mice most closely reproduces the profile of gene expression changes seen in the major human severe malaria syndromes, accompanied by high parasite biomass, severe anemia, hyperlactatemia, and cerebral microvascular pathology. However, there is also considerable discordance of changes in gene expression between the different host species and across all models, indicating that the relevance of biological mechanisms of interest in each model should be assessed before conducting experiments. These data will aid the selection of appropriate models for translational malaria research, and the approach is generalizable to other disease models.
最近的一些举措旨在提高将动物模型研究结果转化为人类疾病的能力,这些举措的重点是提高可重复性,但量化动物模型的相关性仍然是一个挑战。在这里,我们使用血液比较转录组学来评估不同临床表现的疟疾患者与五种常用的小鼠模型之间的全身性宿主反应及其一致性。17XL 感染小鼠最能重现主要人类严重疟疾综合征中所见的基因表达变化特征,同时伴有高寄生虫生物量、严重贫血、高乳酸血症和脑微血管病理学。然而,不同宿主物种之间以及所有模型之间的基因表达变化也存在很大的不一致性,这表明在进行实验之前,应该评估每个模型中感兴趣的生物学机制的相关性。这些数据将有助于选择适合转化性疟疾研究的模型,并且这种方法可以推广到其他疾病模型。
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