Abstract: The present invention relates to a function inhibitor of an effector cell comprising a CCR5 antagonist. Since the function inhibitor of an effector cell comprising a CCR5 antagonist inhibits the function of effector cells which play an important role in formation of diseases and the like, it is effective for the prevention and/or treatment of, for example, a transplant rejection (e.g., rejection of a solid organ graft, rejection of islet cell transplantation in diabetes mellitus, graft-versus-host disease (GVHD), etc.), an autoimmune disease (e.g., arthritis, rheumatoid arthritis, multiple sclerosis, ulcerative colitis, etc.), an allergic disease (e.g., asthma, etc.), an ischemic disease (e.g., ischemia-reperfusion injury, etc.), cancer or a metastatic disease or the like.

Abstract: An antagonist or an agonist which binds to a strong binding site of CCR5; a preventive and/or therapeutic agent for an allergic disease, an inflammatory disease, an immune disease and/or a cancer which comprises the same; a method for screening a compound which binds to a strong binding site of CCR5; a preventive and/or therapeutic agent for an allergic disease, an inflammatory disease, an immune disease and/or a cancer which comprises the antagonist or the agonist selected by the screening method; an antagonist or an agonist which binds to a strong binding site of a chemokine receptor; a preventive and/or therapeutic agent for an allergic disease, an inflammatory disease, an immune disease and/or a cancer which comprises the same; a method for screening a compound which binds to a strong binding site of a chemokine receptor; and a preventive and/or therapeutic agent for an allergic disease, an inflammatory disease, an immune disease and/or a cancer which comprises the antagonist or the agonist selected by th

Abstract: A compound of formula (I) or a salt thereof, and medical use thereof (the symbols in the formula are as described in the specification). The compound of formula (I) has CCR4 antagonistic activity, and therefore is useful as a preventive and/or therapeutic agent for diseases associated with CCR4, i.e., CCR4-mediated diseases such as inflammatory and/or allergic diseases [e.g., systemic inflammatory response syndrome (SIRS), anaphylaxis or anaphylaxis-like reaction, allergic vasculitis, reject reaction for graft organ, hepatitis, nephritis, nephrosis, pancreatitis, rhinitis, arthritis, inflammatory ocular diseases, inflammatory bowel diseases, diseases in cerebro and/or circulatory system, respiratory diseases, dermatic diseases, autoimmune diseases, etc.], and the like.

Abstract: Compounds represented by formula (I) (wherein all of the symbols have the same meanings as defined in specification.), quaternary ammonium salts thereof, N-oxides thereof or salts thereof. The compounds represented by formula (I) are used for prevention and/or treatment of various inflammatory diseases (asthma, nephritis, nephropathy, hepatitis, arthritis, chronic rheumatoid arthritis, rhinitis, conjunctivitis, ulcerative colitis and the like), immunologic diseases (autoimmune diseases, transplant rejection, immunosuppression, psoriasis, multiple sclerosis and the like), human immunodeficiency virus (acquired immunodeficiency syndrome and the like), allergic diseases (atopic dermatitis, nettle rash, allergic bronchopulmonary aspergillosis, allergic eosinophilic gastroenteritis and the like), ischemia-reperfusion injury, acute respiratory distress syndrome, shock accompanied by bacterial infection, diabetes mellitus, or metastasis and the like.