The invention discloses a new secretive
cytokine NS128 of human beings, which relates to a coding
amino acid sequence of the
cytokine or the
polynucleotide of the
cytokine fragment, containing a
genetic engineering carrier and a host
cell of the
polynucleotide. The invention also relates to a production method of the
amino acid sequence of the cytokine or the polypeptide of the cytokine fragment and the production method of the polypeptide as well as a small interference
RNA, which suppresses the expression of the cytokine. The invention also relates to a salt which contains the
polynucleotide or the salt of acceptable drugs, or a medical composition of the polypeptide or the salt of acceptable drugs. The invention further relates to applications of the polynucleotide of the cytokine, the polypeptide or the small interference
RNA in preparation of prevention and / or treatment medicines for tumor, infection, hematopoietic disorder and
autoimmune disease, etc., in particular having clinical implications for tumor,
inflammation and
nervous system disease and so on related to MAPK
signal pathway. The invention also relates to a method of
in vitro testing whether the expression of the polynucleotide or the polypeptide changes. The invention also relates to a
monoclonal or polyclonal
antibody which is specifically bound with the polypeptide or an active fragment of the polypeptide.