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发明公开
CN102336835A 白细胞介素3衍生片段的融合蛋白及其用途 失效 - 权利终止

白细胞介素3衍生片段的融合蛋白及其用途
摘要：
本发明涉及白细胞介素3衍生片段的融合蛋白及其用途。更具体而言，本发明涉及一种包含突变改型的白细胞介素3衍生片段的融合蛋白，其选自：(1)IL2mIL3m2SON3，(2)IL2mIL3m3SON3或(3)IL2mIL3m1SON3，其中IL2m是IL2的突变改型的衍生片段，IL3m2是IL3的突变改型的衍生片段2，IL3m3是IL3的突变改型的衍生片段3，IL3m1是IL3的突变改型的衍生片段1，SON3是DNA结合蛋白SON的衍生片段且富含碱性氨基酸。本发明还涉及上述融合蛋白的用途、编码核苷酸序列、包含所述编码核苷酸序列的重组体、包含所述重组体的工程细胞或工程菌、生产所述融合蛋白的方法、所述融合蛋白的复合物及所述复合物的用途。本发明为杀伤和/或清除一般白血病细胞以及白血病干细胞提供了一种全新机理的药物。
摘要（英）：

The invention relates to fusion protein of an interleukin-3 derived fragment and a purpose thereof. Particularly, the invention relates to fusion protein containing mutated interleukin-3 derived fragment, which is selected from: (1) IL2mIL3m2SON3, (2) IL2mIL3m3SON3 or (3) IL2mIL3m1SON3, wherein IL2m is an IL2-mutated derived fragment, IL3m2 is an IL3-mutated derived fragment 2, IL3m3 is an IL3-mutated derived fragment 3, and IL3m1 is an IL3-mutated derived fragment 1, and SON3 is a DNA-binding protein SON derivative fragment and is rich in basic amino acids. The invention also related to the purpose of the fusion protein, an encoding nucleotide sequence, a recombinant containing the encoding nucleotide sequence, an engineering cell or engineering bacteria containing the recombinant, a method for production of the fusion protein, a composition of the fusion protein, a compound of the fusion protein, and a purpose of the compound. The invention provides a drug with a fully new mechanism for killing and/or eliminating ordinary leukemia cells and leukemia stem cells.

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