The invention relates generally to compositions and methods for detecting protease activity in a subject or a biological sample using activatable antibodies, and the use of these compositions and methods in a variety of diagnostic indications.

In some aspects, the present disclosure provides compositions comprising an N4-based MMC ligand, a cell targeting group, and a fluorophore or a therapeutic compound comprising a formula: ##STR00001##
wherein the variables are as defined herein. In some embodiments, these compositions may be used in the imaging techniques or in the treatment of a disease or disorder such as cancer.

Provided herein, inter alia, are compositions and methods of using the same for detecting complement activation.

The present disclosure relates to compositions and methods of killing cells in vitro or in vivo. In particular examples, the method includes contacting a cell having a cell surface protein with a therapeutically effective amount of an antibody-IR700 molecule, wherein the antibody specifically binds to the cell surface protein. In particular examples the antibody recognizes a tumor-specific antigen on the surface of a tumor cell. The cell is subsequently irradiated, such as at a wavelength of 660 to 740 nm at a dose of at least 1 J cm.sup.−2, thereby killing the cell. Also provided are wearable devices that include an article of clothing, jewelry, or covering; and an NIR LED incorporated into the article, which can be used with the disclosed methods.

A device for capturing an image of an object of medical interest in remitted or reflected illumination light and for capturing an image of the object in fluorescent light generated by Cy5.5 and/or SGM-101 and for capturing an image in fluorescent light generated OTL38 and/or indocyanine green (ICG). The device includes an image sensor for detecting blue, green and red light, another image sensor for detecting fluorescent light of Cy5.5 and/or SGM-101 and OTL38 and/or ICG, a beam splitter guiding light having a wavelength smaller than a predetermined cutoff wavelength to the first sensor and guiding light having a wavelength greater than the predetermined cutoff wavelength to the second sensor, and filters upstream of the second sensor for partially, substantially or completely suppressing light having a wavelength exciting Cy5.5 and/or SGM-101 and for partially, substantially or completely suppressing light having a wavelength suitable for exciting fluorescence of OTL38 and/or ICG.

Compounds containing TRPV6-binding peptides and their use in the detection and diagnosis of cancer are described. Also described are methods for detecting and staging cancer that use the compounds of the invention. Compounds containing TRPV6-binding peptides are useful for the delivery of diagnostic and therapeutic agents to cells or tumors that express TRPV6.

The present invention is directed to compositions and methods targeting cells in a subject harboring conditions or at risk for conditions that would benefit from gas-based diagnostic and therapy. The present invention relates to the use of fluorochemical compositions and methods of delivery that result in retention of the fluorochemical composition and any bioactive agent, including gaseous substances, delivered in combination with the fluorochemical composition.

The disclosure provides antigen binding proteins useful in the recognition of tumor cells and tumor specific delivery of drugs and therapies.

Compounds useful as biologically active compounds are disclosed. The compounds have the following structure (I): or a stereoisomer, tautomer or salt thereof, wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, L.sup.a, L.sup.b, L.sup.1, L.sup.2, L.sup.3, M, m, and n are as defined herein. Methods associated with preparation and use of such compounds are also provided.

##STR00001##

Compounds useful as biologically active compounds are disclosed. The compounds have the following structure (I): or a stereoisomer, tautomer or salt thereof, wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, L.sup.a, L.sup.b, L.sup.1, L.sup.2, L.sup.3, M, m, and n are as defined herein. Methods associated with preparation and use of such compounds is also provided.

##STR00001##