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Boron Schiff bases derived from α-amino acids as nucleoli/cytoplasm cell-staining fluorescent probes in vitro

机译:硼席夫碱源于α-氨基酸,作为核仁/细胞质电池染色荧光探针在体外

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The size, shape, and number of nucleoli in a cell's nucleus might help to distinguish a malignant from a benign tumor. Cellular biology and histopathology often require better visualization to understand nucleoli-related processes, thus organelle-specific fluorescent markers are needed. Here, we report the design, synthesis, and fully chemo-photophysical characterization of fluorescent boron Schiff bases (BOSCHIBAs), derived from α-amino acids ( i.e. , phenylalanine, tyrosine and tryptophan), with nucleoli- and cytoplasm-specific staining in cells. It is the first time that Boron Schiff bases derived from α-amino acids act as notorious dual (nucleoli and cytoplasm) cell-staining fluorescent probes. The boron derivatives not only showed good photostability and acceptable quantum yields (~5%) in solution, but also exhibited low cytotoxicity (>90% cell viability at 0.1 and 1 μg mL ~(?1) ), which make them good candidates to be used in medical diagnosis.
机译:细胞核中的核仁的大小,形状和数量可能有助于区分恶性肿瘤。细胞生物学和组织病理学通常需要更好的可视化以了解与核仁相关的过程,因此需要细胞器特异性荧光标记物。在这里,我们报告了源自α-氨基酸(即,苯丙氨酸,酪氨酸和色氨酸)的荧光硼梭氏碱(Boschibas)的设计,合成和完全化学光物理表征,其中细胞中的核仁和细胞质特异性染色。这是第一次衍生自α-氨基酸的硼席夫基碱作为臭名昭着的双(核仁和细胞质)细胞染色荧光探针。硼衍生物不仅显示出良好的光稳定性和可接受的量子产率(〜5%)在溶液中,也表现出低细胞毒性(> 90%的细胞活力在0.1和1μgmL〜(α1)),这使得它们成为良好的候选者用于医疗诊断。

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