Abstract: The present invention provides a prophylactic and/or therapeutic agent for inflammatory disease including a compound or a salt thereof, or a solvate thereof, the compound represented by a formula (1): [where each sign is defined as described in the description] as an active ingredient.

Abstract: An antibody against a peptide having an amino acid sequence AVQGPEETVT QDC (expressed in single letter amino acid code) as represented by SEQ ID: NO. 1 corresponding to the 134- to 146-positions in human BAFF (B cell activating factor belonging to the TNF family) protein which is preferably a monoclonal antibody; a method of producing the above antibody; a medicinal composition containing the antibody; utilization of the antibody; and a method of screening an inhibitory effect or an activating effect on BAFF with the use of the antibody.

Abstract: An antibody against a peptide having an amino acid sequence AVQGPEETVT QDC (expressed in single letter amino acid code) as represented by SEQ ID: NO. 1 corresponding to the 134- to 146-positions in human BAFF (B cell activating factor belonging to the TNF family) protein which is preferably a monoclonal antibody; a method of producing the above antibody; a medicinal composition containing the antibody; utilization of the antibody; and a method of screening an inhibitory effect or an activating effect on BAFF with the use of the antibody.

Abstract: A method of screening a novel BAFF suppressor or inhibitor. More specifically speaking, a method which comprises adding a combination of TPA with ionomycin and/or an anti-CD3 antibody to a cultured human cell to thereby induce the production of BAFF by the cell; a method of screening a substance capable of suppressing the expression or activity of BAFF which comprises adding a test substance to a BAFF-production system prepared by adding a combination of TPA with ionomycin and/or an anti-CD3 antibody to a cultured human cell and measuring the expression amount and/or the activity of BAFF in the BAFF-production system; and a BAFF production inducer for a BAFF-producing cell which contains a combination of TPA with ionomycin and/or an anti-CD3 antibody.

Abstract: An antibody against a peptide having an amino acid sequence AVQGPEETVT QDC (expressed in single letter amino acid code) as represented by SEQ ID: NO. 1 corresponding to the 134- to 146-positions in human BAFF (B cell activating factor belonging to the TNF family) protein which is preferably a monoclonal antibody; a method of producing the above antibody; a medicinal composition containing the antibody; utilization of the antibody; and a method of screening an inhibitory effect or an activating effect on BAFF with the use of the antibody.

Abstract: A method of screening a novel BAFF suppressor or inhibitor. More specifically speaking, a method which comprises adding a combination of TPA with ionomycin and/or an anti-CD3 antibody to a cultured human cell to thereby induce the production of BAFF by the cell; a method of screening a substance capable of suppressing the expression or activity of BAFF which comprises adding a test substance to a BAFF-production system prepared by adding a combination of TPA with ionomycin and/or an anti-CD3 antibody to a cultured human cell and measuring the expression amount and/or the activity of BAFF in the BAFF-production system; and a BAFF production inducer for a BAFF-producing cell which contains a combination of TPA with ionomycin and/or an anti-CD3 antibody.

Abstract: A method of screening a novel BAFF suppressor or inhibitor. More specifically speaking, a method which comprises adding a combination of TPA with ionomycin and/or an anti-CD3 antibody to a cultured human cell to thereby induce the production of BAFF by the cell; a method of screening a substance capable of suppressing the expression or activity of BAFF which comprises adding a test substance to a BAFF-production system prepared by adding a combination of TPA with ionomycin and/or an anti-CD3 antibody to a cultured human cell and measuring the expression amount and/or the activity of BAFF in the BAFF-production system; and a BAFF production inducer for a BAFF-producing cell which contains a combination of TPA with ionomycin and/or an anti-CD3 antibody.

Abstract: A method of screening a novel BAFF suppressor or inhibitor. More specifically speaking, a method which comprises adding a combination of TPA with ionomycin and/or an anti-CD3 antibody to a cultured human cell to thereby induce the production of BAFF by the cell; a method of screening a substance capable of suppressing the expression or activity of BAFF which comprises adding a test substance to a BAFF-production system prepared by adding a combination of TPA with ionomycin and/or an anti-CD3 antibody to a cultured human cell and measuring the expression amount and/or the activity of BAFF in the BAFF-production system; and a BAFF production inducer for a BAFF-producing cell which contains a combination of TPA with ionomycin and/or an anti-CD3 antibody.

Abstract: An antibody against a peptide having an amino acid sequence AVQGPEETVT QDC (expressed in single letter amino acid code) corresponding to the 134- to 146-positions in human BAFF (B cell activating factor belonging to the TNF family) protein which is preferably a monoclonal antibody; a method of producing the above antibody; a medicinal composition containing the antibody; utilization of the antibody; and a method of screening an inhibitory effect or an activating effect on BAFF with the use of the antibody.