An oil body carrier, its uses in target therapy and/or detection, and a fusion protein comprised therein are provided. The oil body carrier comprises: a) the fusion protein, comprising an oil body protein and a ligand peptide, an antibody peptide, a cell penetrating peptide, or combinations thereof, and b) a lipid, wherein the weight/volume (&mug/&mul) ratio of the fusion protein and the lipid is at least about 1/25, and the average particle size of the oil body carrier is about 10 nm to about 2,000 nm.一種油體載體及其於標靶治療及/或偵測之應用,以及其所包含之融合蛋白質,其中該油體載體包含:a)該融合蛋白質,包含一油體蛋白及一配體胜肽、一抗體胜肽、一細胞穿透胜肽、或前述之組合;及b)一脂質,其中,該融合蛋白質與該脂質之重量/體積比值(微克/微升)為至少約1/25,且該油體載體之平均粒徑為約10奈米至約2,000奈米。
