New targeting or therapeutic compounds which can be incorporated into a composition of gas-filled microvesicles. The invention further relates to gas-filled microvesicles for diagnostic and/or therapeutic use comprising said compounds and to their method of use. The new compounds are compounds of formula M-S-T, wherein: M represents a component capable of associating with an envelope of a gas-filled microvesicle; T represents a component comprising a targeting ligand or a therapeutic agent; and S represents a component comprising at least two bissulfone groups.
新的靶向或治疗化合物可以被加入到气体充填微囊的组合物中。本发明还涉及用于诊断和/或治疗的气体充填微囊,包括所述化合物,并涉及其使用方法。新的化合物是M-S-T式化合物,其中:M代表能够与气体充填微囊的包膜结合的组分;T代表包含靶向
配体或治疗剂的组分;S代表至少包含两个双
磺酸基团的组分。