Abstract: An object of the present invention is to provide a monoclonal antibody which is useful for treating or diagnosing a disease relating to system ASC amino acid transporter 2 (hereinafter, referred to as “ASCT2”) or a method using the antibody. The present invention provides a monoclonal antibody which specifically recognizes a native three-dimensional structure of an extracellular region of ASCT2 and binds to the extracellular region, or an antibody fragment thereof; a hybridoma which produces the antibody; a DNA which encodes the antibody; a vector which contains the DNA; a transformant obtainable by introducing the vector; a process for producing an antibody or an antibody fragment thereof using the hybridoma or the transformant; and a therapeutic agent using the antibody or the antibody fragment thereof, and a diagnostic agent using the antibody or the antibody fragment thereof.

Abstract: An object of the present invention is to provide a monoclonal antibody which is useful for treating or diagnosing a disease relating to system ASC amino acid transporter 2 (ASCT2) or a method using the antibody. The present invention provides a monoclonal antibody which specifically recognizes a native three-dimensional structure of an extracellular region of system ASC amino acid transporter 2 (ASCT2) and binds to the extracellular region, or an antibody fragment thereof; a hybridoma which produces the antibody; a DNA which encodes the antibody; a vector which contains the DNA; a transformant obtainable by introducing the vector; a process for producing an antibody or an antibody fragment thereof using the hybridoma or the transformant; and a therapeutic agent using the antibody or the antibody fragment thereof, and a diagnostic agent using the antibody or the antibody fragment thereof.

Abstract: An anti-CD4 antibody which binds to CD4, has a high affinity and has a high effector activity, such as an antibody-dependent cellular cytotoxicity (ADCC activity) or complement-dependent cellular cytotoxicity (CDC activity), is required for a disease relating to a CD4-expressing cell. The present invention can provide a monoclonal antibody or an antibody fragment thereof, which binds to a CD4 extracellular region with high affinity and also exhibits a high ADCC activity or a high CDC activity; a hybridoma which produces the antibody; a DNA which encodes the antibody; a vector which contains the DNA; a transformant obtainable by introducing the vector; a process for producing an antibody or an antibody fragment thereof using the hybridoma or the transformant; and a therapeutic agent using the antibody or the antibody fragment thereof or a diagnostic agent using the antibody or the antibody fragment thereof.

Abstract: An anti-CD4 antibody which binds to CD4, has a high affinity and has a high effector activity, such as an antibody-dependent cellular cytotoxicity (ADCC activity) or complement-dependent cellular cytotoxicity (CDC activity), is required for a disease relating to a CD4-expressing cell. The present invention can provide a monoclonal antibody or an antibody fragment thereof, which binds to a CD4 extracellular region with high affinity and also exhibits a high ADCC activity or a high CDC activity; a hybridoma which produces the antibody; a DNA which encodes the antibody; a vector which contains the DNA; a transformant obtainable by introducing the vector; a process for producing an antibody or an antibody fragment thereof using the hybridoma or the transformant; and a therapeutic agent using the antibody or the antibody fragment thereof or a diagnostic agent using the antibody or the antibody fragment thereof.

Abstract: An anti-A? oligomer humanized antibody which does not bind to A? monomers and specifically binds only to A? oligomers; an anti-cognitive dysfunction agent, an agent for treating Alzheimer's disease, an agent for suppressing formation of neuritic plaque and an inhibitor of formation of A? amyloid fiber comprising the antibody as an active ingredient; a method for at least one of preventing and treating cognitive dysfunction or Alzheimer's disease, comprising the step of administering the antibody; and a method for suppressing progression of Alzheimer's disease, comprising the step of administering the antibody.

Abstract: An anti-cognitive dysfunction agent comprising a humanized antibody which does not bind to A? monomers and specifically binds only to A? oligomers and a fragment thereof as an active ingredient, and an therapeutic antibody which can be treat Alzheimer's disease by specifically binding amyloid ? protein oligomer (A? oligomer) which is considered to be a cause of Alzheimer's disease are required. The present invention can provide an anti-A? oligomer humanized antibody and a method for treating Alzheimer's disease using the humanized antibody. An agent for treating Alzheimer's disease; an agent for suppressing formation of neuritic plaque; an inhibitor of formation of A? amyloid fiber; a method for at least one of preventing and treating cognitive dysfunction or Alzheimer's disease, comprising the step of administering the humanized antibody; and a method for suppressing progression of Alzheimer's disease, comprising the step of administering the humanized antibody.

Abstract: The present invention relates to a monoclonal antibody or an antibody fragment thereof, which binds to the extracellular region of human Trop-2 with high affinity and exhibits high ADCC activity and high antitumor activity; a hybridoma which produces the antibody; a DNA which encodes the antibody; a vector which comprises the DNA; a transformant obtainable by introducing the vector; a process for producing an antibody or an antibody fragment thereof using the hybridoma or the transformant; and a therapeutic agent or a diagnostic agent using the antibody fragment thereof.

Abstract: An object of the present invention is to provide a monoclonal antibody which is useful for treating or diagnosing a disease relating to system ASC amino acid transporter 2 (hereinafter, referred to as “ASCT2”) or a method using the antibody. The present invention provides a monoclonal antibody which specifically recognizes a native three-dimensional structure of an extracellular region of ASCT2 and binds to the extracellular region, or an antibody fragment thereof; a hybridoma which produces the antibody; a DNA which encodes the antibody; a vector which contains the DNA; a transformant obtainable by introducing the vector; a process for producing an antibody or an antibody fragment thereof using the hybridoma or the transformant; and a therapeutic agent using the antibody or the antibody fragment thereof, and a diagnostic agent using the antibody or the antibody fragment thereof.

Abstract: The present invention provides an anti-human TIM-3 antibody which binds to the amino acid sequence of the extracellular region of TIM-3 or its three-dimensional structure thereof and exhibits higher effector activity such as an antibody-dependent cellular cytotoxicity (ADCC activity) for diseases relating to a human TIM-3 expressing cell. The present invention provides a monoclonal antibody or antibody fragment thereof which binds to the amino acid sequence of the extracellular region of TIM-3 or its three-dimensional structure and exhibits ADCC activity; a hybridoma which produces the antibody; a DNA encoding the antibody; a vector comprising the DNA; a transformant which is obtainable by introducing the vector; a method for producing the antibody or the antibody fragment thereof which comprises using the hybridoma or the transformant; a therapeutic agent and a diagnostic agent comprising the antibody or the antibody fragment thereof as an active ingredient.

Abstract: The present invention provides a monoclonal antibody which specifically recognizes CD27 containing an O-linked sugar chain to which galactose is not bound and binds to its extracellular region, or a method for using the same. The present invention can provide a monoclonal antibody or an antibody fragment thereof, which specifically recognizes a polypeptide encoded by CD27 gene containing an O-linked sugar chain to which galactose is not bound, and binds to its extracellular region; a hybridoma which produces the antibody; a DNA which encodes the antibody; a vector which comprises the DNA; a transformant obtainable by transforming the vector; a process for producing an antibody or an antibody fragment thereof using the hybridoma or the transformant; and a diagnostic agent or a therapeutic agent comprising the antibody or the antibody fragment thereof as an active ingredient.

Abstract: An object of the present invention is to provide a monoclonal antibody which is useful for treating or diagnosing a disease relating to system ASC amino acid transporter 2 (ASCT2) or a method using the antibody. The present invention provides a monoclonal antibody which specifically recognizes a native three-dimensional structure of an extracellular region of system ASC amino acid transporter 2 (ASCT2) and binds to the extracellular region, or an antibody fragment thereof; a hybridoma which produces the antibody; a DNA which encodes the antibody; a vector which contains the DNA; a transformant obtainable by introducing the vector; a process for producing an antibody or an antibody fragment thereof using the hybridoma or the transformant; and a therapeutic agent using the antibody or the antibody fragment thereof, and a diagnostic agent using the antibody or the antibody fragment thereof.

Abstract: An anti-cognitive dysfunction agent comprising a humanized antibody which does not bind to A? monomers and specifically binds only to A? oligomers and a fragment thereof as an active ingredient, and an therapeutic antibody which can be treat Alzheimer's disease by specifically binding amyloid ? protein oligomer (A? oligomer) which is considered to be a cause of Alzheimer's disease are required. The present invention can provide an anti-A? oligomer humanized antibody and a method for treating Alzheimer's disease using the humanized antibody. An agent for treating Alzheimer's disease; an agent for suppressing formation of neuritic plaque; an inhibitor of formation of A? amyloid fiber; a method for at least one of preventing and treating cognitive dysfunction or Alzheimer's disease, comprising the step of administering the humanized antibody; and a method for suppressing progression of Alzheimer's disease, comprising the step of administering the humanized antibody.

Abstract: An anti-A? oligomer humanized antibody which does not bind to A? monomers and specifically binds only to A? oligomers; an anti-cognitive dysfunction agent, an agent for treating Alzheimer's disease, an agent for suppressing formation of neuritic plaque and an inhibitor of formation of A? amyloid fiber comprising the antibody as an active ingredient; a method for at least one of preventing and treating cognitive dysfunction or Alzheimer's disease, comprising the step of administering the antibody; and a method for suppressing progression of Alzheimer's disease, comprising the step of administering the antibody.

Abstract: An anti-CD4 antibody which binds to CD4, has a high affinity and has a high effector activity, such as an antibody-dependent cellular cytotoxicity (ADCC activity) or complement-dependent cellular cytotoxicity (CDC activity), is required for a disease relating to a CD4-expressing cell. The present invention can provide a monoclonal antibody or an antibody fragment thereof, which binds to a CD4 extracellular region with high affinity and also exhibits a high ADCC activity or a high CDC activity; a hybridoma which produces the antibody; a DNA which encodes the antibody; a vector which contains the DNA; a transformant obtainable by introducing the vector; a process for producing an antibody or an antibody fragment thereof using the hybridoma or the transformant; and a therapeutic agent using the antibody or the antibody fragment thereof or a diagnostic agent using the antibody or the antibody fragment thereof.

Abstract: An object of the present invention is to provide a monoclonal antibody which is useful for treating or diagnosing a disease relating to system ASC amino acid transporter 2 (hereinafter, referred to as “ASCT2”) or a method using the antibody. The present invention provides a monoclonal antibody which specifically recognizes a native three-dimensional structure of an extracellular region of ASCT2 and binds to the extracellular region, or an antibody fragment thereof; a hybridoma which produces the antibody; a DNA which encodes the antibody; a vector which contains the DNA; a transformant obtainable by introducing the vector; a process for producing an antibody or an antibody fragment thereof using the hybridoma or the transformant; and a therapeutic agent using the antibody or the antibody fragment thereof, and a diagnostic agent using the antibody or the antibody fragment thereof.

Abstract: The present invention provides a monoclonal antibody which specifically recognizes CD27 containing an O-linked sugar chain to which galactose is not bound and binds to its extracellular region, or a method for using the same. The present invention can provide a monoclonal antibody or an antibody fragment thereof, which specifically recognizes a polypeptide encoded by CD27 gene containing an O-linked sugar chain to which galactose is not bound, and binds to its extracellular region; a hybridoma which produces the antibody; a DNA which encodes the antibody; a vector which comprises the DNA; a transformant obtainable by transforming the vector; a process for producing an antibody or an antibody fragment thereof using the hybridoma or the transformant; and a diagnostic agent or a therapeutic agent comprising the antibody or the antibody fragment thereof as an active ingredient.

Abstract: A cloth cutting knife 16 is structured such that the length of the cutting edge thereof is set shorter than the length of the side sewing portions of a buttonhole to be formed, and a buttonhole having a length corresponding to the length of the right and left side sewing portions can be formed by moving up and down the cloth cutting knife 16 two or more times. The cloth cutting knife 16 is moved up and down at least once during formation of the stitches of the right and left side sewing portions. Also, the cloth cutting knife 16 is moved up and down once each time a given number of stitches of the right and left side sewing portions are formed. The given number of stitches is set in accordance with both of the length of the cutting edge of the cloth cutting knife 16 and the length of the buttonhole to be formed.