Novel polynucleotide analogs, methods for inhibiting nucleic acid polymerases and methods for inducing synthesis of interferon
申请人:THE RESEARCH FOUNDATION OF
STATE UNIVERSITY OF NEW YORK
公开号:EP0320807A2
公开(公告)日:1989-06-21
Polyribonucleotide analogs which are partially substituted by the introduction of mercapto groups and fluorine at the 5-position of some of their cytosine and uracil bases possess effective in vivo antitumor activity. Double stranded complexes formed from such polynucleotides are especially active as interferon inducers.
The disclosure provides an extended release formulation of 5-fluorocytosine. In another aspect, a method of treating a fungal disease is provided. The method comprises administering to a subject in need thereof a fungus-treating effective amount of a composition comprising 5-fluorocytosine. In yet another aspect, a method of treating a cancer is provided. The method comprises administering to a subject in need thereof a sufficient amount of an expression vector to induce expression of cytosine deaminase which is capable of converting 5-fluorocytosine to 5-fluorouracil in cells of the cancer and a cancer-treating effective amount of a composition comprising 5-fluorocytosine.