临床丝状基菌体的回顾性分析和多重PCR的发展,以快速识别
Sayaka Ban1, Isoto Yoshioka1,2, Yugo Mori1
1Medical Mycology Research Center, Chiba University.
Medical mycology journal
|March 1, 2026
概括
病原性基底菌体会导致人类的真菌病,如过敏性支气管肺性真菌病 (ABPM). 一种新的多重PCR测定可以快速识别关键物种,帮助诊断真菌呼吸道疾病.
科学领域:
- 医学真菌学 医学真菌学
- 分子诊断学 分子诊断
- 临床微生物学 临床微生物学
背景情况:
- 贝西迪奥菌种是新兴的病原体,导致人类菌根,特别是过敏性支气管肺菌根 (ABPM).
- 由于培养中的形态特征有限,对这些真菌的准确鉴定具有挑战性.
- 临床意义要求改善病原性基菌体的诊断方法.
研究的目的:
- 分析从人类样本中分离出来的基菌的临床意义.
- 开发和验证一个快速的分子诊断工具,用于常见的致病基菌.
- 调查这些真菌与呼吸系统疾病的关联.
主要方法:
- 分析了650个基菌株 (2010-2024年),包括物种识别,来源和相关疾病.
- 开发一种针对内部转录间隔器 (ITS) 区域的多重聚合酶链反应 (PCR) 试验.
- 验证多重PCR测定与rDNA测序对特异性和一致性的验证.
主要成果:
- Schizophyllum commune是最常见的隔离物 (60%),其次是Trametes spp. (9.5%),Irpex spp. 在美国. (5.2%) 和贝尔坎德拉阿杜斯塔 (4.3%).
- 大多数隔离物来自呼吸道标本,与ABPM,肺部菌根症或鼻炎有关.
- 开发的多重PCR试验准确地区分了目标物种,具有高特异性和对序列的一致性.
结论:
- 病原性基底菌,特别是S.commune,是人类呼吸道真菌感染的重要原因.
- 多重PCR提供了一种快速,具有成本效益的方法来识别临床相关的基菌体.
- 这种分子工具有助于及时诊断和管理真菌呼吸道疾病.
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