Institute of Innovative Research, 
Tokyo Institute of Technology.


Press Release

Live Intracellular Imaging with New, Conditionally Active Immunofluorescence Probe

Furthering the visualization of intracellular dynamics for therapeutic applications, a Tokyo Tech research team has now demonstrated precise imaging of endogenous proteins in live cells using an antigen-binding fragment (Fab)-based Quenchbody (Q-body). The Q-body probe shows antigen-dependent response and a switchable (on-off) fluorescent signaling, enabling the visualization and sorting of cells expressing p53, a tumor suppressor biomarker protein.