A system for determining a staining score of portions of dyeable epithelia within the ocular surface of a subject includes a portable computing device with a camera, a display, a memory, and a processor configured to execute a staining score application. An illumination/optics device with a light source and optics is configured to receive an image of the ocular surface. The illumination/optics device may be removably attached to the portable computing device. The staining score application includes an alignment module, an image acquisition module, and a staining scoring module.

Described are substituted imidazo[1,2-a]pyrazine compounds, which are coelenterazine analogues, kits comprising the analogues, and methods of using the compounds for the detection of luminescence in luciferase-based assays. Also described are methods from making the compounds, such as a method using aminopyrazine acetophosphonates as synthesis intermediates.

The present invention relates to fusion polypeptides comprising a sub-membrane targeting domain, a protein of interest or a functionally or structurally active fragment thereof, and a peptide interacting with the Endosomal Sorting Complexes Required for Transport (ESCRT) cellular machinery, and the use of said fusion polypeptides in methods of targeting a protein of interest in the lumen of an extracellular vesicle. The present invention also relates to extracellular vesicles comprising said fusion polypeptides, and their use for treating or preventing diseases.

Described are substituted imidazo[1,2-a]pyrazine compounds, which are coelenterazine analogues, kits comprising the analogues, and methods of using the compounds for the detection of luminescence in luciferase-based assays. Also described are methods from making the compounds, such as a method using aminopyrazine acetophosphonates as synthesis intermediates.

The present invention is in the field of bioluminescence in biology and/or medicine. In particular, the invention provides imidazopyrazine derivatives, processes for preparation thereof, and their uses as luciferins.

The present invention is in the field of bioluminescence in biology and/or medicine. In particular, the invention provides imidazopyrazine derivatives, processes for preparation thereof, and their uses as luciferins.

Antibodies which bind selectively to cardiac conduction system (CCS) cells, imaging and/or diagnostic reagents and compositions visualizing the CCS cells and therapeutic products and compositions comprising one or more of the antibodies. Methods for delivering therapeutic agents to the CCS cells. The disclosure further provides methods for visualizing the CCS cells in vivo in real time, including in a subject undergoing a cardiothoracic surgery or other cardiac intervention. Compositions and methods for isolation, purification, analyses and/or transplantation of the CCS cells, including pluripotent stem cell (hiPSC)-derived or human embryonic stem cell (hESC)-derived CCS cells.