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The role of virulence determinants in community-associated MRSA pathogenesis.

机译:毒力决定因素在社区相关的MRSA发病机理中的作用。

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摘要

The recent emergence of community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) marked a quantum change in the biology and epidemiology of a major human pathogen. Various virulence determinants unique to CA-MRSA have been uncovered recently, which shed light on how these strains spread easily and sustainably among humans and frequently cause severe disease. The role of the Panton Valentine leukocidin (PVL) in CA-MRSA pathogenesis is a matter of much debate. Although epidemiological data have indicated a role for PVL in the CA-MRSA disease process, recent data from relevant animal models indicate that PVL does not impact virulence of prevalent CA-MRSA strains. Identifying specialized pathogenic traits of CA-MRSA remains a challenge that will yield new diagnostic tools and therapeutic targets for drug and vaccine development. Here, we discuss the roles of PVL, the arginine catabolic mobile element and phenol-soluble modulins in the pathogenesis of prevalent CA-MRSA strains.
机译:社区相关的耐甲氧西林金黄色葡萄球菌(CA-MRSA)的最新出现标志着主要人类病原体的生物学和流行病学发生了量子变化。最近发现了CA-MRSA特有的各种毒力决定因素,这揭示了这些毒株如何在人类中轻松而可持续地传播,并经常导致严重疾病。 Panton Valentine白细胞抑制素(PVL)在CA-MRSA发病机理中的作用尚有很多争论。尽管流行病学数据表明PVL在CA-MRSA疾病过程中发挥了作用,但相关动物模型的最新数据表明PVL不会影响流行的CA-MRSA菌株的毒力。鉴定CA-MRSA的特殊致病性状仍然是一个挑战,它将为药物和疫苗开发提供新的诊断工具和治疗靶标。在这里,我们讨论了PVL,精氨酸分解代谢可动元件和酚溶性调节蛋白在流行CA-MRSA菌株发病中的作用。

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