The present invention relates to a group of new oligonucleotides sequences with
human tumor necrosis factor α (TNF-α) inhibiting activity, which includes
DNA sequences and
RNA sequences. These oligonucleotides or
aptamer can specifically be bound to TNF-α and inhibit the cytoxicity of TNF-α to L929 cells. Therefore, the
aptamer of the present invention may be used to detect TNF-α and provide a therapeutic method for diseases related to the increasing level of TNF-α. Compared with other TNF antagonists such as
monoclonal antibody and soluble
receptor, the present invention has high specificity, high affinity, quick penetration to
target tissue, rapid
plasma clearance, and lower immunogenecity. Turthermore, it can be used repeatedly and keeps
high concentration in
target tissue and the like. It has the advantages of affinity and specificity similar to
monoclonal antibodies and also has permeability and
pharmacokinetics characteristics similar to small molecular polypeptide. The present invention also refers to derivative of the oligonucleotides sequence, including modified sequence. The present invention may further be manufactured as
medicine for therapy and diagnosis of TNF-α related diseases.