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Molecular imaging in drug discovery and development: potential and limitations of nonnuclear methods.

机译:药物发现和开发中的分子成像:非核方法的潜力和局限性。

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摘要

Noninvasive conventional imaging methods are established technologies in modern drug discovery and development providing valuable morphological, physiological, and metabolic information to characterize disease phenotypes, to evaluate the efficacy of therapy and to identify and develop potential biomarkers for clinical drug evaluation. The development of target-specific or molecular imaging has added a new dimension: molecular events such as the target expression, the drug-target interaction, or the activation of signal transduction pathways can be studied in the intact organism with high spatial and temporal resolution. Molecular imaging is inherently a multimodality approach. In this article, we review the role of molecular imaging for drug discovery and development focusing on nonnuclear imaging methods, i.e., magnetic resonance imaging (MRI) and optical imaging techniques based on fluorescence and bioluminescence readouts. Examples discussed are direct visualization of target expression using target-specific ligands or reporter genes, pathway imaging, and cell-trafficking studies.
机译:非侵入性常规成像方法是现代药物发现和开发中已建立的技术,可提供有价值的形态,生理和代谢信息来表征疾病表型,评估治疗效果以及鉴定和开发用于临床药物评估的潜在生物标志物。靶标特异性或分子成像的发展增加了一个新维度:可以在完整的有机体中以高时空分辨率研究诸如靶标表达,药物-靶标相互作用或信号转导途径激活等分子事件。分子成像本质上是一种多峰方法。在本文中,我们将重点探讨分子成像在药物发现和开发中的作用,重点是非核成像方法,即基于荧光和生物发光读数的磁共振成像(MRI)和光学成像技术。讨论的例子是使用靶标特异性配体或报告基因直接观察靶标表达,途径成像和细胞贩运研究。

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