Patent ID: 8138159

Claim:
A composition comprising a nucleic acid of which target is at least one region selected from the group consisting of a juxtamembrane region, a kinase region and an ATP-binding site region in human Flt3 and which can inhibit the function of Flt3, wherein said composition comprises a nucleic acid selected from the group consisting of: a nucleic acid wherein a nucleic acid comprising the nucleotide sequence of SEQ ID NO: 2 and a nucleic acid comprising the nucleotide sequence of SEQ ID NO: 3 are combined, a nucleic acid wherein a nucleic acid comprising the nucleotide sequence of SEQ ID NO: 5 and a nucleic acid comprising the nucleotide sequence of SEQ ID NO: 6 are combined, a nucleic acid wherein a nucleic acid comprising the nucleotide sequence of SEQ ID NO: 8 and a nucleic acid comprising the nucleotide sequence of SEQ ID NO: 9 are combined, a nucleic acid wherein a nucleic acid comprising the nucleotide sequence of SEQ ID NO: 33 and a nucleic acid comprising the nucleotide sequence of SEQ ID NO: 34 are combined, a nucleic acid wherein a nucleic acid comprising the nucleotide sequence of SEQ ID NO: 36 and a nucleic acid comprising the nucleotide sequence of SEQ ID NO: 37 are combined, and a nucleic acid wherein a nucleic acid comprising the nucleotide sequence of SEQ ID NO: 39 and a nucleic acid comprising the nucleotide sequence of SEQ ID NO: 40 are combined.