Zwitterionic metal chelators
AssigneeCuradel Surgical Innovations, Inc.
InventorsJohn V. Frangioni, Wolfgang Maison, Deepak Suresh Sail
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Abstract
The present invention relates to zwitterionic metal chelators and their use as imaging, diagnostic, chemical processing, and treatment agents. These zwitterionic metal chelators have desirable properties that maximize solubility in aqueous environments, minimize non-specific interactions, and retain the ability to target thus resulting in an improved performance in a variety of medical, agricultural, and chemical processes. In in vivo and medical applications, zwitterionic metal chelators improve the signal-to-background ratio and therapeutic window as compared to other metal chelators while retaining high stability.
Claims34
A zwitterionic metal chelator complex comprising a metal chelator having one or more zwitterionic groups and a metal or metal isotope selected from the group consisting of a radionuclide, a label, a paramagnetic metal and a heavy metal.
15-18. (canceled)
The method of treating a cancerous condition in a subject in need thereof according to claim 18, wherein the metal atom complexed to the zwitterionic metal chelator is a non-radioactive metal that is capable of releasing cytotoxic radiation upon irradiation with alpha emission, beta emission, neutron capture, or a combination thereof;
- the method further comprising a step of irradiating the tumor cells using alpha emission, beta emission, neutron capture, or a combination thereof.
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-34. (canceled)
Dependencies are inferred from the claim text.