发炎性分泌的毒性因子的Staphylococcus capitis导致严重的本地关节感染的罕见发生
Patrick M Schlievert1,2, Samuel H Kilgore1,2, Bradley Ford3
1Department of Microbiology and Immunology, Carver College of Medicine, The University of Iowa, Iowa City, Iowa, USA.
ASM case reports
|November 17, 2025
概括
斯塔菲洛科克斯 (Staphylococcus capitis) 可能导致感染. 这一案例突出了S. capitis导致破坏性部腹和骨髓炎,可能是由于分泌的毒性因素.
科学领域:
- 医学微生物学 医学微生物学
- 传染性疾病 传染性疾病
- 整形外科手术 整形外科手术
背景情况:
- 斯塔菲洛科克斯 (Staphylococcus capitis) 是一种机会性病原体,偶尔与人类感染有关.
- 这份报告详细介绍了一例罕见的S. capitis感染病例,导致严重的关节破坏.
研究的目的:
- 记录和分析一个病例的葡萄球菌头炎感染呈现为炎症性破坏性部腹和骨髓炎.
- 为了研究从病人身上分离出来的S. capitis菌株的毒性因子.
主要方法:
- 临床病例介绍和诊断工作,包括成像和实验室测试.
- 以图像为指导的突和骨细胞活检用于微生物培养和组织病理学.
- 核酸测序和生物化学分析孤立的S. capitis菌株的毒性因子.
主要成果:
- 一个63岁的男性呈现出恶化的关节疼痛和骨头破坏的X光证据.
- 活检显示了纯种植的S.capitis与中性粒细胞透,确认感染.
- 这种S. capitis菌株具有多糖糖细胞间粘附生物膜操作子,并分泌中性粒细胞亲炎性自溶素和S. aureus免疫主导抗原B的模拟物.
结论:
- 葡萄球菌capitis亚种capitis被确定为炎症性部损伤的致病原体.
- 分泌的蛋白质,包括一种自解素和一种免疫主导抗原B的模拟物,可能有助于观察到的炎症和组织破坏.
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