Diagnostic/therapeutic agents having microbubbles coupled to one or more vectors
First Claim
1. A targetable ultrasound diagnostic active agent comprising a suspension in an aqueous carrier liquid of a reporter comprising gas-filled microbubbles stabilised by monolayers of film-forming surfactant material, at least 75% of said film-forming surfactant material comprising phospholipid molecules bearing a net overall charge and said film-forming surfactant material including a positively charged peptide linker element comprising two or more lysine residues and wherein said linker element is anchored through electrostatic interaction with the reporter material, said peptide linker coupling to one or more vector molecules selected from the group consisting of angiogenesis-specific binding vectors, atherosclerotic plaque-binding peptides and thrombus-binding peptides.
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Accused Products
Abstract
Targetable diagnostic and/or therapeutically active agents, e.g. ultrasound contrast agents, having reporters comprising gas-filled microbubbles stabilised by monolayers of film-forming surfactants, the reporter being coupled or linked to at least one vector.
361 Citations
22 Claims
- 1. A targetable ultrasound diagnostic active agent comprising a suspension in an aqueous carrier liquid of a reporter comprising gas-filled microbubbles stabilised by monolayers of film-forming surfactant material, at least 75% of said film-forming surfactant material comprising phospholipid molecules bearing a net overall charge and said film-forming surfactant material including a positively charged peptide linker element comprising two or more lysine residues and wherein said linker element is anchored through electrostatic interaction with the reporter material, said peptide linker coupling to one or more vector molecules selected from the group consisting of angiogenesis-specific binding vectors, atherosclerotic plaque-binding peptides and thrombus-binding peptides.
Specification