The present invention relates to a non-agonist ligand of ARTC1, which inhibits the ADP-ribosyltransferase activity of ARTC1, or an inhibitor nucleic acid sequence capable of downregulating or inhibiting expression of a target nucleic acid sequence encoding ARTC1, for use in prevention or treatment of cancer. The invention also relates to a method for diagnosis of cancer.

The disclosure relates to compounds that are, e.g., PAP Associated Domain Containing 5 (PAPD5) inhibitors and methods of use thereof.

A scalable process for production of polyribonucleotides of controlled molecular weight range through variation of processing time and input concentrations. Key elements include a method for immobilization of polynucleotide phosphorylase which has been covalently attached to an amino-functionalized solid support via a glutaraldehyde linkage; a method of repeatedly reacting inosine diphosphate or cytidine diphosphate monomer s with immobilized polynucleotide phosphorylase to produce polyribonucleotide chains; control of the chain length of Poly(I) and Poly (C) by varying cofactor concentration and the length of reaction time; a method for controlled and efficient large-scale manufacture of a specific, determined range of molecular weight poly I and poly C homopolymer chains.