The RM153 monoclonal antibody specifically recognizes a 40-kDa type-II membrane glycoprotein, CD30 ligand (CD30L or CD153), which belongs to the NGF/TNF superfamily. In the presence of cytokines, CD153 stimulates B-cell proliferation, antigen-specific antibody production, and polyclonal immunoglobulin secretion. In addition, it costimulates the proliferation of activated T cells. This molecule is expressed on activated T cells, predominantly CD4+, on activated EL4 cells, and on activated Th1 and Th2 cells. The RM153 mAb inhibits the binding of CD153 to CD30.
The antibody was conjugated to BD Horizon BUV615 which is part of the BD Horizon Brilliant™ Ultraviolet family of dyes. This dye is a tandem fluorochrome with an Ex Max near 350 nm and an Em Max near 615 nm. BD Horizon Brilliant BUV615 can be excited by the ultraviolet laser (355 nm) and detected with a 610/20 filter and a 595 nm LP. Due to the excitation of the acceptor dye by the blue/yellow-green laser line, there may be significant spillover into channels detecting PE-CF594 like emissions (eg, 610/20-nm filter).