Abstract: To provide a technique for selecting a target cell producing a target substance that specifically binds to a desired cell membrane protein more rapidly and efficiently. A substrate 1 having a plurality of microwells 2 is provided. A first cell 3 expressing a target cell membrane protein on its surface is allowed to adhere to each of the microwells 2. One or two second cells 5 as a candidate of a target cell are introduced into each microwell 2, and are allowed to coexist with the first cell 3 in the microwell 2, and target substance 6 secreted by the second cell 5 is brought into contact with the first cell 3. A microwell 2 including the first cell 3 to which the target substance 6 binds is identified. The second cell 5 as the target cell is recovered from the identified microwell 2. One example of the target substance 6 is an antibody. Visualization may be performed by adding a label substance 7.

Abstract: It is an object of the present invention to provide an antibody that binds to a human PGE2 receptor subtype EP4 and inhibits the function of EP4, or a functional fragment thereof. It is another object of the present invention to provide a medicament comprising the aforementioned antibody or a functional fragment thereof. Mice were immunized with the human PGE2 receptor subtype EP4, and a monoclonal antibody that suppresses the intracellular cAMP level increase induced by EP4 was screened. In addition, the CDR sequences of the obtained monoclonal antibody were determined.

Abstract: To provide a technique for selecting a target cell producing a target substance that specifically binds to a desired cell membrane protein more rapidly and efficiently. A substrate 1 having a plurality of microwells 2 is provided. A first cell 3 expressing a target cell membrane protein on its surface is allowed to adhere to each of the microwells 2. One or two second cells 5 as a candidate of a target cell are introduced into each microwell 2, and are allowed to coexist with the first cell 3 in the microwell 2, and target substance 6 secreted by the second cell 5 is brought into contact with the first cell 3. A microwell 2 including the first cell 3 to which the target substance 6 binds is identified. The second cell 5 as the target cell is recovered from the identified microwell 2. One example of the target substance 6 is an antibody. Visualization may be performed by adding a label substance 7.

Abstract: To provide a technique for selecting a target cell producing a target substance that specifically binds to a desired cell membrane protein more rapidly and efficiently. A substrate 1 having a plurality of microwells 2 is provided. A first cell 3 expressing a target cell membrane protein on its surface is allowed to adhere to each of the microwells 2. One or two second cells 5 as a candidate of a target cell are introduced into each microwell 2, and are allowed to coexist with the first cell 3 in the microwell 2, and target substance 6 secreted by the second cell 5 is brought into contact with the first cell 3. A microwell 2 including the first cell 3 to which the target substance 6 binds is identified. The second cell 5 as the target cell is recovered from the identified microwell 2. One example of the target substance 6 is an antibody. Visualization may be performed by adding a label substance 7.

Abstract: To provide a technique for selecting a target cell producing a target substance that specifically binds to a desired cell membrane protein more rapidly and efficiently. A substrate 1 having a plurality of microwells 2 is provided. A first cell 3 expressing a target cell membrane protein on its surface is allowed to adhere to each of the microwells 2. One or two second cells 5 as a candidate of a target cell are introduced into each microwell 2, and are allowed to coexist with the first cell 3 in the microwell 2, and target substance 6 secreted by the second cell 5 is brought into contact with the first cell 3. A microwell 2 including the first cell 3 to which the target substance 6 binds is identified. The second cell 5 as the target cell is recovered from the identified microwell 2. One example of the target substance 6 is an antibody. Visualization may be performed by adding a label substance 7.

Abstract: It is an object of the present invention to provide an antibody that binds to a human PGE2 receptor subtype EP4 and inhibits the function of EP4, or a functional fragment thereof. It is another object of the present invention to provide a medicament comprising the aforementioned antibody or a functional fragment thereof. Mice were immunized with the human PGE2 receptor subtype EP4, and a monoclonal antibody that suppresses the intracellular cAMP level increase induced by EP4 was screened. In addition, the CDR sequences of the obtained monoclonal antibody were determined.

Abstract: It is an object of the present invention to provide an antibody that binds to a human PGE2 receptor subtype EP4 and inhibits the function of EP4, or a functional fragment thereof. It is another object of the present invention to provide a medicament comprising the aforementioned antibody or a functional fragment thereof. Mice were immunized with the human PGE2 receptor subtype EP4, and a monoclonal antibody that suppresses the intracellular cAMP level increase induced by EP4 was screened. In addition, the CDR sequences of the obtained monoclonal antibody were determined.

Abstract: An anti-human-CC-motif-receptor-7 (anti-human-CCR7) antibody which is useful as a therapeutic agent for tissue fibrosis or cancer, and a pharmaceutical composition containing the anti-human CCR7 antibody, and the like is described. An anti-human CCR7 antibody specifically binding to an extracellular domain of human CCR7, having a heavy chain CDR3 containing an amino acid sequence represented by SEQ ID NO: 7, SEQ ID NO: 17, SEQ ID NO: 27, SEQ ID NO: 37, SEQ ID NO: 47, SEQ ID NO: 57, SEQ ID NO: 67, or SEQ ID NO: 77 is provided. Also provided is an anti-human CCR7 antibody having heavy chain CDRs 1-3 and light chain CDRs 1-3 containing amino acid sequences represented by SEQ ID NOs: 5-10, 15-20, 25-30, 35-40, 45-50, 55-60, 65-70, or 75-80. The anti-human CCR7 antibody of the present invention may be used as an active ingredient of a therapeutic agent for tissue fibrosis or cancer.

Abstract: It is an object of the present invention to provide an antibody that binds to a human PGE2 receptor subtype EP4 and inhibits the function of EP4, or a functional fragment thereof. It is another object of the present invention to provide a medicament comprising the aforementioned antibody or a functional fragment thereof. Mice were immunized with the human PGE2 receptor subtype EP4, and a monoclonal antibody that suppresses the intracellular cAMP level increase induced by EP4 was screened. In addition, the CDR sequences of the obtained monoclonal antibody were determined.

Abstract: It is an object of the present invention to provide an antibody that binds to a human PGE2 receptor subtype EP4 and inhibits the function of EP4, or a functional fragment thereof. It is another object of the present invention to provide a medicament comprising the aforementioned antibody or a functional fragment thereof. Mice were immunized with the human PGE2 receptor subtype EP4, and a monoclonal antibody that suppresses the intracellular cAMP level increase induced by EP4 was screened. In addition, the CDR sequences of the obtained monoclonal antibody were determined.

Abstract: The present invention provides a technique for conveniently and efficiently regenerating elastic fiber retaining a normal structure, and a technique enabling preparation of an artificial tissue comprising elastic fiber (for example, artificial skin, artificial blood vessels) that can be transplanted to humans. Specifically, the invention provides a method of producing elastic fiber, comprising culturing (for example, culturing in serum-free medium) cells having the capability of regenerating elastic fiber in the presence of DANCE and/or fibulin-4; artificial elastic fiber comprising DANCE and/or fibulin-4; an elastic fiber regenerating agent; a serum-free medium comprising DANCE and/or fibulin-4; and cells having the capability of regenerating elastic fiber, transfected with at least one of a DANCE expression vector, a fibulin-4 expression vector and a DANCE inducing factor expression vector, and the like.

Abstract: There is provided an inhibitor that inhibits casein kinase 1? and casein kinase 1?, and thus, there is also provided a pharmaceutical agent useful for the treatment and/or prevention of a disease, with the pathological condition of which the mechanism of activation of casein kinase 1? or casein kinase 1? is associated. Particularly, the above-described inhibitor is used to provide a pharmaceutical agent useful for the treatment of circadian rhythm disorder (including sleep disorder), central neurodegenerative disease, and cancer.

Abstract: There is provided a novel oxazolone derivative having inhibitory activity against casein kinase 1? and casein kinase 1?. In addition, the present inhibitor inhibits casein kinase 1? and casein kinase 1?, and thus there is also provided a pharmaceutical agent useful for the treatment and/or prevention of diseases, with the pathological conditions of which the activation mechanism of casein kinase 1? or casein kinase 1? is associated. There is further provided a pharmaceutical agent useful for the treatment of, particularly, circadian rhythm disorder (including sleep disorder), central neurodegenerative disease, and cancer. An inhibitor of casein kinase 1? and casein kinase 1? comprising, as an active ingredient, an oxazolone derivative represented by the following general formula (1), a salt thereof, a solvate thereof, or a hydrate thereof: wherein X represents a halogen atom which is fluorine, chlorine, bromine or iodine.

Abstract: It is an object of the present invention to provide an antibody that binds to a human PGE2 receptor subtype EP4 and inhibits the function of EP4, or a functional fragment thereof. It is another object of the present invention to provide a medicament comprising the aforementioned antibody or a functional fragment thereof. Mice were immunized with the human PGE2 receptor subtype EP4, and a monoclonal antibody that suppresses the intracellular cAMP level increase induced by EP4 was screened. In addition, the CDR sequences of the obtained monoclonal antibody were determined.

Abstract: An object of the present invention is to provide a novel anti-human CCR7 antibody useful as a therapeutic agent for tissue fibrosis or cancer, and a pharmaceutical composition containing the anti-human CCR7 antibody, and the like. An anti-human CCR7 antibody specifically binding to an extracellular domain of human CCR7, having a heavy chain CDR3 containing an amino acid sequence represented by SEQ ID NO: 7, SEQ ID NO: 17, SEQ ID NO: 27, SEQ ID NO: 37, SEQ ID NO: 47, SEQ ID NO: 57, SEQ ID NO: 67, or SEQ ID NO: 77 is provided. Also provided is an anti-human CCR7 antibody having heavy chain CDRs 1-3 and light chain CDRs 1-3 containing amino acid sequences represented by SEQ ID NOs: 5-10, 15-20, 25-30, 35-40, 45-50, 55-60, 65-70, or 75-80. Preferably, the antibody has an activity of interfering with a CCR7-dependent intracellular signal transduction mechanism caused by CCR7 ligand stimulation.

Abstract: There is provided a novel oxazolone derivative having inhibitory activity against casein kinase 1? and casein kinase 1?. In addition, the present inhibitor inhibits casein kinase 1? and casein kinase 1?, and thus there is also provided a pharmaceutical agent useful for the treatment and/or prevention of diseases, with the pathological conditions of which the activation mechanism of casein kinase 1? or casein kinase 1? is associated. There is further provided a pharmaceutical agent useful for the treatment of particularly, circadian rhythm disorder (including sleep disorder), central neurodegenerative disease, and cancer. An inhibitor of casein kinase 1? and casein kinase 1? comprising, as an act ingredient, an oxazolone derivative represented by the following general formula (1), a salt thereof, a solvate thereof, or a hydrate thereof: wherein X represents a halogen atom (which may be any one of a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom).

Abstract: There is provided an inhibitor that inhibits casein kinase 1? and casein kinase 1?, and thus, there is also provided a pharmaceutical agent useful for the treatment and/or prevention of a disease, with the pathological condition of which the mechanism of activation of casein kinase 1? or casein kinase 1? is associated. Particularly, the above-described inhibitor is used to provide a pharmaceutical agent useful for the treatment of circadian rhythm disorder (including sleep disorder), central neurodegenerative disease, and cancer.