Abstract: The present invention relates to pyridylpyrimidine derivatives of the general formula (I): wherein R represents hydrogen or methyl and Z represents nitrogen containing functional groups, the use of the pyridylpyrimidine derivatives as pharmaceutically active agents, especially for the prophylaxis and/or treatment of prion infections and prion diseases, as well as compositions containing at least one pyridylpyrimidine derivative and/or pharmaceutically acceptable salt thereof. Furthermore, the present invention is directed to methods for preventing and/or treating prion infections and prion diseases using said pyridylpyrimidine derivatives. Human cellular protein kinases, phosphatases and cellular signal transduction molecules are disclosed as targets for detecting, preventing and/or treating prion infections and diseases, especially BSE, vCJD, or CJD which can be inhibited by the inventive pyridylpyrimidine derivatives.

Abstract: Novel imidazole compounds particularly useful against Hepatitis C Virus infections and diseases associated therewith are described. Applications of the human cellular proteins casein kinase I alpha (?), delta (?), and epsilon (?) as targets for medical intervention against Hepatitis C Virus (HCV) infections and diseases are also described. This invention further refers to a method for identifying compounds useful for the prophylaxis and/or treatment of Hepatitis C Virus infections and diseases, methods for treating Hepatitis C Virus infections and diseases, as well as pharmaceutical compositions useful for the prophylaxis and/or treatment of Hepatitis C Virus infections and diseases. Moreover, disclosed are antibodies, oligonucleotides and specific compounds which are effective for the detection, prophylaxis and/or treatment of Hepatitis C Virus infections and diseases.

Abstract: Methods for the detection of compounds useful for prophylaxis and/or treatment of Hepatitis C virus infections and methods for detecting Hepatitis C virus infections in an individual or in cells are disclosed. Mono- or polyclonal antibodies are disclosed effective for the treatment of HCV infections together with methods for treating Hepatitis C virus infections or for the regulation of Hepatitis C virus production and/or replication wherein said antibodies are disclosed. Solid supports useful for detecting Hepatitis C virus infections or for screening compounds useful for prophylaxis and/or treatment of HCV infections are also disclosed.

Abstract: The present invention relates to pyridylpyrimidine derivatives of the general formula (I): 1