HMRef-βGal

HMRef-βGal is a fluorescent probe and a substrate responsive to β-galactosidase (β-galactosidase) (Ex/Em=498 nm/505-600 nm). After being cleaved by β-galactosidase, HMRef-βGal triggers significant fluorescence enhancement via intramolecular spirocyclic function regulation. HMRef-βGal generates bright fluorescence in cancer cells with elevated β-galactosidase activity, enabling visualization of tiny peritoneal metastases in mouse models. HMRef-βGal exhibits low in vitro cytotoxicity and low acute in vivo toxicity in mice. HMRef-βGal can be used for preclinical fluorescence-guided diagnosis and cytoreductive surgery of peritoneal metastases, including compatibility with real-time naked-eye detection and endoscopic imaging, as well as for studies related to peritoneal metastases of ovarian cancer^[1].