AIと「Ramanomics」により生細胞解析の障害を解消する新手法を開発(AI and ‘Ramanomics’ could eliminate a major obstacle to studying living cells)

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2026-08-06 バッファロー大学(UB)

バッファロー大学(University at Buffalo)の研究チームは、ラマン分光法と人工知能(AI)を組み合わせた新たな解析手法「AI Ramanomics」を開発し、生きた細胞の分子状態を非破壊・無標識で高精度に解析できることを示した。ラマン分光法は細胞内分子の化学的特徴を捉えられる一方、得られるスペクトルは複雑で解釈が難しいという課題があった。新手法では、AIが膨大なラマンスペクトルを学習・解析し、細胞内のタンパク質、脂質、核酸などの分子情報や代謝状態を高精度で抽出する。これにより、細胞の状態変化や疾患に伴う分子異常をリアルタイムかつ高感度で評価でき、従来の染色や標識を必要としない解析が可能となる。今後は、がんや神経変性疾患などの早期診断、創薬における薬効評価、再生医療、精密医療など幅広い分野への応用が期待される。AIと分光計測を融合した本技術は、単一細胞レベルの生命現象を解明する新たな研究基盤として注目されている。

AIと「Ramanomics」により生細胞解析の障害を解消する新手法を開発(AI and ‘Ramanomics’ could eliminate a major obstacle to studying living cells)
Figure 1 shows how fluorescent labels help identify cell structures while collecting biochemical data, creating the examples needed to train the AI model. Figure 3 shows how AI distinguishes cell structures using their natural biochemical signatures alone. Credit: University at Buffalo.

<関連情報>

人工知能とラマノミクスを統合し、生細胞内の生化学的環境をラベルフリーでモニタリングすることで、細胞診断と分子医学を進歩させる Integrating Artificial Intelligence with Ramanomics for Label-Free Monitoring of Biochemical Environment in Live Cells to Advance Cellular Diagnostics and Molecular Medicine

Varun Chandola;Andrey N. Kuzmin;Artem Pliss;Alexander Baev;Giovana R. Teixeira;Paras N. Prasad
ACS Omega  Published:June 06, 2026
DOI:https://doi.org/10.1021/acsomega.5c12148

Abstract

Raman spectrometry, with its capability to noninvasively characterize the molecular composition of microscopic subcellular volumes, including single organelles in live cells, has revolutionized cell biology research. Being introduced as a label-free approach for biochemical imaging, the practical applications of Raman spectrometry still often include the fluorescence probes for the localization of organelles and other subcellular domains of interest. Aiming to overcome this limitation, we report on the development of an artificial intelligence/machine learning approach for true label-free identification of different types of subcellular structures. Here, we explore the application of machine learning (ML) to learn the relationship between a set of biochemical parameters in single organelles of live cells. The biochemical parameters are extracted by Ramanomics, an optical Omics technology, from Raman spectra of single organelles of live cells of different cell lines. Several classification algorithms, such as neural networks, Random Forests, support vector machines, logistic regression, and Gaussian process classification, are evaluated. We report the performance of the best classifier, a shallow neural network, to classify the type of organelle using the biochemical parameters. Evaluation is done using k-fold cross-validation (k = 10), and the final output classification is compared against the ground truth. The k-fold cross-validation shows that the NN-based classifier has significant accuracy (∼90%) to distinguish between different organelles using Ramanomics measurements. Our approach allows us to identify the precise location of separate organelles by local Raman measurement without labeling.

生物化学工学
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