Abstract: Disclosed is a cell collection device with which switching and seeing microscope images with different magnifications can be attained in one-touch without rotating a revolver. The cell collection device includes an optical system to observe cells contained in a transparent vessel under magnification. The optical system includes a first optical system to observe the cells from upper side and a second optical system to observe the cells from lower side. The first optical system and the second optical system have different magnifications, and the optical axis of the first optical system and the optical axis of the second optical system are coincident.

Abstract: The present invention has: a step for heating a resin or a metal in a state in which the resin or metal is sandwiched by a mold provided with a projection that is constituted from an elastic body having a heat resistance temperature higher than the temperature at which the resin or the metal softens, and a support body which is larder than the mold and which is softened by heat at a higher temperature than the resin or the metal, while a force is applied to the mold in the direction toward the resin or the metal.

Abstract: [Problem] To provide a polypeptide which enables stimulation of numerous T cells of different derivation, and to induce strong immunological response against numerous types of cancers. [Solution] Provided is a fused polypeptide that includes a helper epitope derived from the WT1 protein, and a killer epitope derived from the WT1 protein, wherein the polypeptide includes a total of 3 to 6 of the helper epitopes and the killer epitopes per molecule of the fused polypeptide.

Abstract: [Problem] To provide a polypeptide which enables stimulation of numerous T cells of different derivation, and to induce strong immunological response against numerous types of cancers. [Solution] Provided is a fused polypeptide that includes a helper epitope derived from the WT1 protein, and a killer epitope derived from the WT1 protein, wherein the polypeptide includes a total of 3 to 6 of the helper epitopes and the killer epitopes per molecule of the fused polypeptide.

Abstract: The present invention provides a means for suppressing aggregation produced after purification of viral vector. That is, the present invention provides 1) a preparation method of viral vector including at least (1) a step for purification of viral vector and (2) a step of sterilization by filtration in the presence of serum albumin of the purified viral vector obtained in the aforementioned (1); 2) a pharmaceutical composition containing viral vector and serum albumin; 3) a method for suppressing aggregation of viral vector or a method for stabilizing viral vector, which includes adding serum albumin to a viral vector-containing solution; and 4) a pharmaceutical composition containing viral vector sterilized by filtration, which is substantially free of aggregation of viral vector and/or substantially free of degradation of virus activity upon preservation in a solution state at room temperature for at least 7 days.