| 摘要 |
It is an object of the present invention to identify a membrane molecule that is specifically expressed on activated plasmacytoid dendritic cells, for the purpose of preventing or improving affection or disease such as cancer, autoimmune disease, allergy, or infectious disease by regulating the functions of dendritic cells capable of integrating an immune system. The present invention provides a protein having any one of the following amino acid sequences: (a) an amino acid sequence as shown in SEQ ID NO: 2; (b) an amino acid sequence, which comprises a deletion, substitution, insertion and/or addition of one or several amino acid residues with respect to the amino acid sequence as shown in SEQ ID NO: 2, and which is capable of regulating the functions of dendritic cells; and (c) an amino acid sequence, which has homology of 80% or more with the amino acid sequence as shown in SEQ ID NO: 2, and which is capable of regulating the functions of dendritic cells.
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