申请人:Vector Laboratories, Inc.
公开号:US10969384B2
公开(公告)日:2021-04-06
Provided herein are immunofluorescence assays that do not use an intensely colored lipophilic dye, and that result in a significant reduction of fluorescence due to aldehyde fixation, collagen, elastin, and/or red blood cells. In certain embodiments of the present invention, a two-step treatment of the tissue is contemplated that leads to the incorporation of reduced heteropoly acids or salts thereof (e.g., phosphomolybdate species) in the tissue. This reagent binds tightly to hydrophilic regions of the tissue and effectively quenches the fluorescence in those regions. In doing so, the overall signal-to-noise ratio for the immunofluorescence assay is increased.
本发明提供的免疫荧光检测方法不使用颜色强烈的亲脂性染料,并能显著减少由于醛固定、胶原蛋白、弹性蛋白和/或红细胞引起的荧光。在本发明的某些实施方案中,考虑对组织进行两步处理,使还原型杂多酸或其盐类(如磷钼酸盐类)掺入组织中。这种试剂与组织的亲水区域紧密结合,并有效淬灭这些区域的荧光。这样,免疫荧光检测的总体信噪比就会提高。