Abstract: Composite particles, each of which is obtained by forming, on the surface of a gadolinium oxide-containing particle, a cover film that contains a polymer obtained by polymerizing a monomer component containing a monomer having an ethylenically unsaturated bond; a macrophage imaging agent which contains the composite particles; and a method for producing composite particles, wherein a monomer component containing a monomer having an ethylenically unsaturated bond and gadolinium oxide-containing particles are mixed with each other, and after emulsifying the thus-obtained monomer component-containing mixture in water in the presence of a surfactant and a polymerization initiator in water, the monomer component is polymerized, thereby forming cover films on the surfaces of the gadolinium oxide-containing particles.

Abstract: Disclosed is a screening method which can select a substance having an influence on the binding between thioredoxin and MIF.

Abstract: Disclosed is a screening method which can select a substance having an influence on the binding between thioredoxin and MIF.

Abstract: (Problems) The main object of the present invention is to provide a screening method for selecting a substance affecting a bond between thioredoxin and MIF. (Means for Solving Problems) The present invention provides a screening method for selecting a test substance which strengthens a bond between a polypeptide of a thioredoxin family and a macrophage migration inhibition factor, comprising: mixing a test substance with at least one binding substance selected from following (1) to (4), (1) the polypeptide belonging to the thioredoxin family, (2) a protein having an amino acid sequence of the polypeptide belonging to the thioredoxin family in which one or more amino acid is deleted, replaced or added, and having an equivalent activity to the polypeptide of the thioredoxin family, (3) a gene coding (1), (4) a gene coding (2); bonding the binding substance to the macrophage migration inhibition factor; and monitoring the bond state between the binding substance and the macrophage migration inhibition factor.

Abstract: The present invention provides a preventive or therapeutic agent being effective for disorders induced by macrophage migration inhibitory factor and vascular system disorders, and having fewer side effects. In particular, the present agent is characterized by containing anti TRX antibody polypeptide as an active ingredient to inhibit adherence of leukocyte to vascular endothelial cell and a cell internalization of the macrophage migration inhibitory factor.