新しい多機能単一細胞プラットフォームが抗真菌感受性試験を高速化(New Multi-Feature Single-Cell Platform Speeds Up Antifungal Susceptibility Testing)

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2026-04-02 中国科学院(CAS)

中国科学院青島生物エネルギー・生物プロセス研究所(QIBEBT)などの共同研究チームは、真菌感染症の迅速診断を可能にする単一細胞ベースの抗真菌薬感受性試験プラットフォーム(MAFST)を開発した。従来法は時間がかかり細胞間差異を捉えにくい課題があったが、本手法はラマン分光と明視野イメージングを統合し、代謝活性・細胞形態・サイズ変化を同時解析。これらを統合指標(CII)として評価することで、高精度かつ約6~8時間で感受性判定を実現した。複数のカンジダ種や臨床分離株で従来法と高い一致を示し、迅速で定量的な次世代診断技術として臨床応用が期待される。

新しい多機能単一細胞プラットフォームが抗真菌感受性試験を高速化(New Multi-Feature Single-Cell Platform Speeds Up Antifungal Susceptibility Testing)
AI-assisted multimodal platform for rapid antifungal susceptibility testing (Image by LIU Yang)

<関連情報>

単一細胞の形態、発達、代謝による抗真菌薬感受性試験 Antifungal Susceptibility Test via Single-Cell Morphology, Development, and Metabolism

Xiao Han,Yanmei Zhang,Xiaoshan Zheng,Xixian Wang,Rongze Chen,Min Liu,Qiwen Yang,Guanghua Huang,Yu Vincent Fu,Bo Ma,Jiadong Huang,Jian Xu
Analytical Chemistry  Published: March 27, 2026
DOI:https://doi.org/10.1021/acs.analchem.5c06899

Abstract

Antifungal susceptibility test (AFST) is essential for guiding effective therapy, but it remains challenged by long turnaround times and the limited generalizability of single-parameter phenotypic readouts across diverse fungal species and antifungal classes. Here, we present a multifeature AFST (MAFST) platform that integrates single-cell Raman spectroscopy and brightfield imaging to enable rapid and pleiotropic assessment of antifungal responses. By unifying complementary metabolic and morphological features into a composite inhibition index (CII), MAFST captures coordinated cellular responses to antifungal exposure that cannot be reliably resolved by individual metrics alone. Benchmarking against the broth microdilution demonstrates that CII-based MAFST achieves high concordance across multiple Candida species and antifungal classes while substantially reducing the time required for susceptibility determination. Thus, by capturing single-cell morphological, developmental, and metabolic drug responses in a fast, accurate, and widely applicable fashion, MAFST can contribute to tackling fungal infections.

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