Immune dysfunction and bacterial coinfections following influenza.

Immune dysfunction and bacterial coinfections following influenza.
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DOI:
10.4049/jimmunol.1301152
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发表时间:
2013-09-01
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
通讯作者:
Sun K
Sun K
中科院分区:
其他
文献类型:
--
作者:
Metzger DW;Sun K

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流感后由包裹细菌引起的继发性肺部感染,包括肺炎链球菌和金黄色葡萄球菌,是一个常见且具有挑战性的临床问题。这种多微生物协同作用的原因仍未完全了解,阻碍了有效预防和治疗干预措施的发展。虽然人们普遍认为病毒诱导的上皮细胞损伤允许细菌侵入,但最近几个小组的研究表明,流感后的先天免疫防御功能失调是继发性细菌感染易感性增强的罪魁祸首。了解导致病毒-细菌协同作用的免疫失衡将最终允许设计有效的广谱治疗方法,以预防对这些病原体的易感性增强。
Secondary pulmonary infections by encapsulated bacteria including Streptococcus pneumoniae and Staphylococcus aureus following influenza represent a common and challenging clinical problem. The reasons for this polymicrobial synergy are still not completely understood, hampering development of effective prophylactic and therapeutic interventions. While it has been commonly thought that viral-induced epithelial cell damage allows bacterial invasiveness, recent studies by several groups have now implicated dysfunctional innate immune defenses following influenza as the primary culprit for enhanced susceptibility to secondary bacterial infections. Understanding the immunological imbalances that are responsible for virus-bacteria synergy will ultimately allow the design of effective, broad-spectrum therapeutic approaches for prevention of enhanced susceptibility to these pathogens.
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