Abstract: 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.

Abstract: A cyclic dinucleotide compound of Formula (I): wherein X1 is H or F; X2 is H or F; at least one among X1 and X2 is a fluorine atom; Z is OH, OR1, SH or SR1, wherein: R1 is Na or NH4, or R1 is an enzyme-labile group which provides OH or SH in vivo such as pivaloyloxymethyl; B1 and B2 are bases chosen from Adenine, Hypoxanthine or Guanine, and B1 is a different base than B2 and a pharmaceutically acceptable salt thereof. Pharmaceutical compositions including the cyclic dinucleotide, as well as their use in the treatment of a bacterial infection, a viral infection or a cancer are also described.

Abstract: A monoclonal chimeric immunoglobulin wherein the heavy chains and the light chains are human by nature in their constant parts, in particular, the heavy chain constant parts are chosen from the group formed of the heavy chain constant parts of an IgA, of an IgG or of an IgM and the light chain constant parts are chosen from the group formed of the kappa chains and the lambda chains, and the light chain and the heavy chain variable parts are chosen from the group formed of monoclonal antibodies specific to monomorphic epitopes of HLA class I antigens and monoclonal antibodies specific to monomorphic epitopes of HLA class II antigens. A process for standardization of the screening and for quantification of anti-HLA antibodies in a liquid medium is also described.

Abstract: A conjugated compound of formula Q-Z—R4 wherein Q is a TLR7 and/or TLR8 agonist and Z—R4 is a TLR2 agonist, and the uses thereof in the treatment of infection, cancer or immune disorders or for use in vaccines.

Abstract: A conjugated compound of formula Q-Z—R4 wherein Q is a TLR7 and/or TLR8 agonist and Z—R4 is a lipid covalently linked to an amino acid or peptide coupled to a polyamine group, and a process for the manufacture of the conjugated compound, as well as a complex formed between the conjugated compound and a polyanionic molecule and a pharmaceutical composition containing the conjugated compound or complex. Also described is the use of the conjugated compound or complex in the treatment of infection, cancer or immune disorders or for use in vaccines.

Abstract: A conjugated compound of Formula I: Q-Z—R4 wherein Q is a TLR7 and/or TLR8 agonist and Z—R4 is a TLR2 agonist, the conjugated compound being chosen among compounds of Formula II:

Abstract: A method for determining the quantity of anti-HLA antibodies of a liquid medium containing antibodies.