使用高保真,可渗透,亲脂性,和明亮的荧光团用于成像组织中的脂滴(LD)在诊断糖尿病或酒精性脂肪肝疾病等疾病方面具有巨大的潜力。在这项工作中,我们利用线性和Λ形极性敏感荧光探针在细胞和组织环境中成像LD,特别是在患有糖尿病和酒精性脂肪肝的大鼠中。荧光探针具有几个关键的特性,包括高渗透率,亲脂性,和亮度,这使得它们非常适合高效的LD成像。值得注意的是,探针表现出显著的斯托克斯位移,DCS为143nm,DCN为201nm,选择性靶向脂滴。我们的实验研究成功地在三种不同的组织类型中区分了患病和正常组织之间的形态学变化:肝脏,脂肪,和小肠。它们可以帮助提供改善LD相关病理的检测和理解的指针。
Using high-fidelity, permeable, lipophilic, and bright fluorophores for imaging lipid droplets (LDs) in tissues holds immense potential in diagnosing conditions such as diabetic or alcoholic fatty liver disease. In this work, we utilized linear and Λ-shaped polarity-sensitive fluorescent probes for imaging LDs in both cellular and tissue environments, specifically in rats with diabetic and alcoholic fatty liver disease. The fluorescent probes possess several key characteristics, including high permeability, lipophilicity, and brightness, which make them well-suited for efficient LD imaging. Notably, the probes exhibit a substantial Stokes shift, with 143 nm for DCS and 201 nm for DCN with selective targeting of the lipid droplets. Our experimental investigations successfully differentiated morphological variations between diseased and normal tissues in three distinct tissue types: liver, adipose, and small intestine. They could help provide pointers for improved detection and understanding of LD-related pathologies.