The present invention provides a Pro-cyclic dinucleotide (Pro-CDN) comprising a STING agonist cyclic dinucleotide which is coupled to a linker system. The Pro-CDNs of the present invention can be metabolized at a targeted site into CDNs and exert their full immunomodulatory effects at said targeted site. The present invention also provides conjugates wherein a Pro-CDN is conjugated to a Biologically Active Molecule (BAM) such as e.g. a cytotoxic molecule, a lipid, a protein, a peptide, a nucleic acid, a sugar or a PRR ligand. The invention provides also methods related to the use of such compounds to perform their activities at their targeted sites, to exert cytotoxic, cytostatic or immunomodulatory effects, to treat or to prevent diseases such as cancers, immunological disorders or infections.
本发明提供了一种含有与连接系统耦合的STING激动剂环二核苷酸的前周期二核苷酸(Pro-CDN)。本发明的Pro-CDN可以在靶向部位代谢为CDN,并在该靶向部位发挥其完整的免疫调节作用。本发明还提供了结合物,其中Pro-CDN与
生物活性分子(BAM)结合,例如细胞毒性分子、脂质、蛋白质、肽、核酸、糖或PRR
配体。该发明还提供了与使用这些化合物相关的方法,以在其靶向部位执行其活性,发挥细胞毒性、细胞抑制或免疫调节作用,治疗或预防癌症、免疫性疾病或感染等疾病。