Abstract: A novel adjuvant composition is provided that is excellent in safety and convenience as compared to the conventional adjuvant such as Alum. An adjuvant composition comprising citrullines, which are water soluble substance present in the living body, and/or a salt thereof; a vaccine composition comprising said adjuvant composition and an antigen; a process for preparing said adjuvant composition and said vaccine composition; and a method for administering said adjuvant composition and said vaccine composition are provided.

Abstract: A novel adjuvant composition is provided that is excellent in safety and convenience as compared to the conventional adjuvant such as Alum. An adjuvant composition comprising citrullines, which are water soluble substance present in the living body, and/or a salt thereof; a vaccine composition comprising said adjuvant composition and an antigen; a process for preparing said adjuvant composition and said vaccine composition; and a method for administering said adjuvant composition and said vaccine composition are provided.

Abstract: A novel adjuvant composition is provided that is excellent in safety and convenience as compared to the conventional adjuvant such as Alum. An adjuvant composition comprising citrullines, which are water soluble substance present in the living body, and/or a salt thereof; a vaccine composition comprising said adjuvant composition and an antigen; a process for preparing said adjuvant composition and said vaccine composition; and a method for administering said adjuvant composition and said vaccine composition are provided.

Abstract: A method for using inactivated Japanese encephalitis virus particles as an adjuvant of a vaccine is provided. A method for using inactivated Japanese encephalitis virus (JEV) particles as an adjuvant of various vaccines or a mixed vaccine, said JEV particles being obtained by inoculating JEV Beijing-1 strain to Vero cells, culturing said JEV-infected cells to give cultured cells or culture supernatant, purifying JEV particles from said cultured cells or culture supernatant and inactivating said JEV particles with formalin, a method for preparing a (mixed) vaccine which comprises a step of letting inactivated Japanese encephalitis virus be contained, and a mixed vaccine prepared by said method.

Abstract: The present invention provides a method for enhancing the immunogenicity using a microneedle device capable of enhancing the immunogenicity of an influenza vaccine. According to the method for enhancing the immunogenicity using the present microneedle device, a microneedle device having microneedles made of polylactic acid, coated with an influenza vaccine composed of an antigen having type A strain (H1N1), type A strain (H3N2), and type B strain as active ingredients is brought into direct contact with the skin so as to transcutaneously administer the aforementioned influenza vaccine. After the transcutaneous administration, lauryl alcohol is applied to the site of the skin where the microneedle device has been brought into direct contact.

Abstract: An object of the present invention is to provide a safe and effective method for enhancing an immune response and a medicament for preventing or treating Alzheimer disease comprising amyloid ? peptide that induces an enhanced immune response. An amyloid ? peptide or a portion thereof with addition or insertion of cysteine and a method for enhancing an immune response using the peptide or a method for enhancing an immune response using the peptide together with an adjuvant. A medicament for preventing or treating Alzheimer disease comprising an amyloid ? peptide or a portion thereof that induces an enhanced immune response. A DNA vaccine, that may have the same effect, comprising the gene encoding an amyloid ? peptide or a portion thereof that induces an enhanced immune response with addition or insertion of cysteine.

Abstract: An object of the present invention is to provide a safe and effective method for enhancing an immune response and a medicament for preventing or treating Alzheimer disease comprising amyloid ? peptide that induces an enhanced immune response. An amyloid ? peptide or a portion thereof with addition or insertion of cysteine and a method for enhancing an immune response using the peptide or a method for enhancing an immune response using the peptide together with an adjuvant. A medicament for preventing or treating Alzheimer disease comprising an amyloid ? peptide or a portion thereof that induces an enhanced immune response. A DNA vaccine, that may have the same effect, comprising the gene encoding an amyloid ? peptide or a portion thereof that induces an enhanced immune response with addition or insertion of cysteine.

Abstract: A modified peptide derived from matrix protein 2 (hereinafter also referred to as “M2”), one of surface layer proteins of influenza virus, and a method for utilization of the modified peptide are provided. A peptide (hereinafter also referred to as “M2eC peptide”) that is made up by inserting cysteine residue(s) into a peptide (hereinafter also referred to as “M2e”) consisting of 23 amino acid residues of from positions No. 2 to No.

Abstract: A polyion complex (PIC) or a PIC nanoparticle that may be easily prepared, and that is finally disappeared in vivo due to its suitable biodegradability while exhibiting high stability in vivo, an immunotherapy agent comprising the PIC nanoparticle to which various antigen proteins or peptides may be easily conjugated or incorporated and/or which may be easily mixed with the antigen proteins or peptides, as well as a process for preparing thereof are provided. Specifically, a polyion complex (PIC) comprising a hydrophobized poly(acidic amino acid) and a basic polypeptide, a nanoparticle thereof having a particle shape, an immunotherapy agent comprising the PIC nanoparticle, as well as a process for preparing the PIC, comprising steps of introducing a hydrophobic amino acid to a poly(acidic amino acid) to prepare a hydrophobized poly(acidic amino acid), and dissolving the hydrophobized poly(acidic amino acid) prepared to a buffer, and it is mixed with a basic polypeptide dissolved in a buffer.

Abstract: A novel adjuvant composition is provided that is excellent in safety and convenience as compared to the conventional adjuvant such as Alum. An adjuvant composition comprising citrullines, which are water soluble substance present in the living body, and/or a salt thereof; a vaccine composition comprising said adjuvant composition and an antigen; a process for preparing said adjuvant composition and said vaccine composition; and a method for administering said adjuvant composition and said vaccine composition are provided.

Abstract: An object of the present invention is to provide a safe and effective method for enhancing an immune response and a medicament for preventing or treating Alzheimer disease comprising amyloid ? peptide that induces an enhanced immune response. An amyloid ? peptide or a portion thereof with addition or insertion of cysteine and a method for enhancing an immune response using the peptide or a method for enhancing an immune response using the peptide together with an adjuvant. A medicament for preventing or treating Alzheimer disease comprising an amyloid ? peptide or a portion thereof that induces an enhanced immune response. A DNA vaccine, that may have the same effect, comprising the gene encoding an amyloid ? peptide or a portion thereof that induces an enhanced immune response with addition or insertion of cysteine.

Abstract: An object of the present invention is to provide a safe and effective method for enhancing an immune response and a medicament for preventing or treating Alzheimer disease comprising amyloid ? peptide that induces an enhanced immune response. An amyloid ? peptide or a portion thereof with addition or insertion of cysteine and a method for enhancing an immune response using the peptide or a method for enhancing an immune response using the peptide together with an adjuvant. A medicament for preventing or treating Alzheimer disease comprising an amyloid ? peptide or a portion thereof that induces an enhanced immune response. A DNA vaccine, that may have the same effect, comprising the gene encoding an amyloid ? peptide or a portion thereof that induces an enhanced immune response with addition or insertion of cysteine.

Abstract: An object of the invention is to provide a peptide based on a sequence of an amyloid ? peptide that may allow for induction of enhanced immune response and is safe and efficacious for prophylaxis and treatment of Alzheimer disease. An amyloid ? peptide or a portion thereof with addition or insertion of cysteine or a cysteine analogue, and a method for enhancing immune response to amyloid ? using said peptide, a medicament for prophylaxis and treatment of Alzheimer disease using said amyloid ? peptide that induces an enhanced immune response, and a DNA vaccine comprising a gene coding for an amyloid ? peptide or a sequence derived from an amyloid ? peptide with addition or insertion of cysteine or a cysteine analogue, as expected to be similarly efficacious.

Abstract: This invention is intended to isolate and identify a vWF-specific cleaving protease. The vWF-specific cleaving protease cleaves a bond between residues Tyr 842 and Met 843 of vWF and comprises a polypeptide chain having Leu-Leu-Val-Ala-Val (SEQ ID NO: 1) as a partial sequence, and more preferably comprises a polypeptide chain having the partial N-terminal amino acid sequence of a mature protein, Ala-Ala-Gly-Gly-Ile-Leu-His-Leu-Glu-Leu-Leu-Val-Ala-Val (SEQ ID NO: 2), and having a molecular weight of 105 to 160 kDa in SDS-PAGE under reducing or non-reducing conditions. Isolation and identification of this vWF-specific cleaving protease have led to the possibility of replacement therapy for patients having diseases resulting from a deficiency of the protease, such as thrombotic thrombocytopenic purpura.

Abstract: A modified peptide derived from matrix protein 2 (hereinafter also referred to as “M2”), one of surface layer proteins of influenza virus, and a method for utilization of the modified peptide are provided. A peptide (hereinafter also referred to as “M2eC peptide”) that is made up by inserting cysteine residue(s) into a peptide (hereinafter also referred to as “M2e”) consisting of 23 amino acid residues of from positions No. 2 to No.

Abstract: An object of the present invention is to provide a safe and effective method for enhancing an immune response and a medicament for preventing or treating Alzheimer disease comprising amyloid ? peptide that induces an enhanced immune response. An amyloid ? peptide or a portion thereof with addition or insertion of cysteine and a method for enhancing an immune response using the peptide or a method for enhancing an immune response using the peptide together with an adjuvant. A medicament for preventing or treating Alzheimer disease comprising an amyloid ? peptide or a portion thereof that induces an enhanced immune response. A DNA vaccine, that may have the same effect, comprising the gene encoding an amyloid peptide or a portion thereof that induces an enhanced immune response with addition or insertion of cysteine.

Abstract: A polyion complex (PIC) or a PIC nanoparticle that may be easily prepared, and that is finally disappeared in vivo due to its suitable biodegradability while exhibiting high stability in vivo, an immunotherapy agent comprising the PIC nanoparticle to which various antigen proteins or peptides may be easily conjugated or incorporated and/or which may be easily mixed with the antigen proteins or peptides, as well as a process for preparing thereof are provided. Specifically, a polyion complex (PIC) comprising a hydrophobized poly(acidic amino acid) and a basic polypeptide, a nanoparticle thereof having a particle shape, an immunotherapy agent comprising the PIC nanoparticle, as well as a process for preparing the PIC, comprising steps of introducing a hydrophobic amino acid to a poly(acidic amino acid) to prepare a hydrophobized poly(acidic amino acid), and dissolving the hydrophobized poly(acidic amino acid) prepared to a buffer, and it is mixed with a basic polypeptide dissolved in a buffer.

Abstract: An object of the present invention is to provide a safe and effective method for enhancing an immune response and a medicament for preventing or treating Alzheimer disease comprising amyloid ? peptide that induces an enhanced immune response. An amyloid ? peptide or a portion thereof with addition or insertion of cysteine and a method for enhancing an immune response using the peptide or a method for enhancing an immune response using the peptide together with an adjuvant. A medicament for preventing or treating Alzheimer disease comprising an amyloid ? peptide or a portion thereof that induces an enhanced immune response. A DNA vaccine, that may have the same effect, comprising the gene encoding an amyloid ? peptide or a portion thereof that induces an enhanced immune response with addition or insertion of cysteine.

Abstract: This invention is intended to isolate and identify a vWF-specific cleaving protease. The vWF-specific cleaving protease cleaves a bond between residues Tyr 842 and Met 843 of vWF and comprises a polypeptide chain having Leu-Leu-Val-Ala-Val (SEQ ID NO: 1) as a partial sequence, and more preferably comprises a polypeptide chain having the partial N-terminal amino acid sequence of a mature protein, Ala-Ala-Gly-Gly-Ile-Leu-His-Leu-Glu-Leu-Leu-Val-Ala-Val (SEQ ID NO: 2), and having a molecular weight of 105 to 160 kDa in SDS-PAGE under reducing or non-reducing conditions. Isolation and identification of this vWF-specific cleaving protease have led to the possibility of replacement therapy for patients having diseases resulting from a deficiency of the protease, such as thrombotic thrombocytopenic purpura.

Abstract: An object of the invention is to provide a peptide based on a sequence of an amyloid ? peptide that may allow for induction of enhanced immune response and is safe and efficacious for prophylaxis and treatment of Alzheimer disease. An amyloid ? peptide or a portion thereof with addition or insertion of cysteine or a cysteine analogue, and a method for enhancing immune response to amyloid ? using said peptide, a medicament for prophylaxis and treatment of Alzheimer disease using said amyloid ? peptide that induces an enhanced immune response, and a DNA vaccine comprising a gene coding for an amyloid ? peptide or a sequence derived from an amyloid ? peptide with addition or insertion of cysteine or a cysteine analogue, as expected to be similarly efficacious.