Cyano-substituted anthracene containing polyamines were synthesized and shown to be efficient polyamine transporter ligands. Moreover, these compounds (3 and 4) had improved fluorescence properties over previously known anthryl-polyamine conjugates, which facilitated their intracellular trafficking by confocal microscopy and fluorescence methods. These cytotoxic fluorescent agents may find use as molecular probes which traffic into cells via the polyamine transport system and may also be viable anticancer drugs which are readily quantified in human tissues due to their excellent fluorescence properties: (excitation: λ405 nm) and emission (420 nm) occurs in the visible light range. The ability to excite and emit in the visible range provides an advantage to these probes as these wavelengths are considered non-toxic to human cells (versus ultraviolet mediated excitations, λ<400 nm) and visible light lasers are less costly to purchase and operate than UV laser sources.
合成了含有
氰基取代的
蒽醌聚胺,并证明其是高效的聚胺转运体
配体。此外,这些化合物(3和4)比已知的
蒽基聚胺共轭物具有改进的荧光性能,这有助于通过共聚焦显微镜和荧光方法进行它们的细胞内运输。这些细胞毒性荧光试剂可以作为分子探针,通过聚胺转运系统进入细胞,并且由于其优异的荧光性质(激发:λ405 nm,发射:420 nm),可以在人体组织中轻松测量。能够在可见光范围内激发和发射具有优势,因为这些波长被认为对人类细胞无毒(与紫外线介导的激发,λ<400 nm相比),而可见光激光器的购买和操作成本也比紫外线激光源低。