COMPOSITIONS COMPRENANT DES DINUCLÉOTIDES CYCLIQUES DE PURINE PRÉSENTANT DES STÉRÉOCHIMIES DÉFINIES ET PROCÉDÉS POUR LEUR PRÉPARATION ET LEUR UTILISATION
It is an object of the present invention to provide novel and highly active cyclic-di-nucleotide (CDN) immune stimulators that activates DCs via a recently discovered cytoplasmic receptor known as STING (Stimulator of Interferon Genes). In particular, the CDNs of the present invention are provided in the form of a composition comprising one or more cyclic purine dinucleotides that induce STING-dependent TBK1 activation, wherein the cyclic purine dinucleotides present in the composition are substantially pure Rp,Rp or Rp,Sp stereoisomers, and particularly substantially pure Rp,Rp, or RpSp CDN thiophosphate diastereomers.