摘要:
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. 24 of M2 in influenza virus type A, a fusion protein consisting of said modified peptide and a polypeptide, an influenza vaccine comprising said modified peptide or said fusion protein as an active ingredient, a device which can be delivered into the body comprising said influenza vaccine, a nucleic acid fragment consisting of a nucleotide sequence encoding the amino acid sequence of said modified peptide or said fusion protein, an expression vector in which said nucleic acid fragment is incorporated, a host in which said expression vector is introduced, and an antibody that has a protective effect against influenza virus.
摘要:
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.
摘要:
An expression vector for the expression of an exogenous gene in an animal cell, which contains a chick .beta.-actin gene promoter and a restriction enzyme site for incorporating an exogenous gene at the downstream of said promoter and a process for expressing an exogenous gene, which comprises incorporating said exogenous gene into the expression vector at the restriction enzyme site for incorporating the exogenous gene, introducing said vector into an animal cell and culturing the obtained transformed animal cell. The expression system of the present invention can be applied to an expression of any exogenous gene and has an extremely high expression efficiency and is applicable to a wide range of host cells, and hence can sufficiently be utilized for industrial-scale production of a useful material.
摘要:
A safe and effective hemostatic is provided. The invention relates to a bioabsorbable synthetic nonwoven fabric holding thrombin as an effective ingredient and a hemostatic comprising said bioabsorbable synthetic nonwoven fabric. The bioabsorbable synthetic nonwoven fabric holding thrombin in accordance with the present invention may be prepared by a process which comprises the steps of immersing a bioabsorbable synthetic nonwoven fabric into a solution containing thrombin and of lyophilizing the obtained nonwoven fabric. The bioabsorbable synthetic nonwoven fabric holding thrombin in accordance with the present invention allows for quicker and more effective hemostasis.
摘要:
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 β peptide that induces an enhanced immune response. An amyloid β 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 β 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 β peptide or a portion thereof that induces an enhanced immune response with addition or insertion of cysteine.
摘要:
A genetic recombinant human thrombin is provided. Human thrombin is efficiently prepared by the genetic engineering technique comprising the steps: (1) culturing a transfectant animal cell transfected with an expression vector in which a gene encoding human prethrombin is incorporated to the downstream of a promoter so as to produce and accumulate prethrombin in culture supernatant and recovering the produced human prethrombin; (2) treating a solution containing human prethrombin recovered in step (1) with ecarin so as to convert human prethrombin into human thrombin; and (3) purifying the solution obtained after the above activation process to obtain purified human thrombin. The present invention allows for provision of human thrombin in a large scale in a safe and economical manner due to exclusion of blood-derived components.
摘要:
A safe and effective hemostatic is provided. The invention relates to a bioabsorbable synthetic nonwoven fabric holding thrombin as an effective ingredient and a hemostatic comprising said bioabsorbable synthetic nonwoven fabric. The bioabsorbable synthetic nonwoven fabric holding thrombin in accordance with the present invention may be prepared by a process which comprises the steps of immersing a bioabsorbable synthetic nonwoven fabric into a solution containing thrombin and of lyophilizing the obtained nonwoven fabric. The bioabsorbable synthetic nonwoven fabric holding thrombin in accordance with the present invention allows for quicker and more effective hemostasis.
摘要:
Antisense oligonucleotides are provided which are complementary to and hybridizable with at least a portion of HCV RNA and which are capable of inhibiting the function of the HCV RNA. These oligonucleotides can be administered to inhibit the activity of Hepatitis C virus in vivo or in vitro. These compounds can be used either prophylactically or therapeutically to reduce the severity of diseases associated with Hepatitis C virus, and for diagnosis and detection of HCV and HCV-associated diseases. Methods of using these compounds are also disclosed.
摘要:
Antisense oligonucleotides are provided which are complementary to and hybridizable with at least a portion of HCV RNA and which are capable of inhibiting the function of the HCV RNA. These oligonucleotides can be administered to inhibit the activity of Hepatitis C virus in vivo or in vitro. These compounds can be used either prophylactically or therapeutically to reduce the severity of diseases associated with Hepatitis C virus, and for diagnosis and detection of HCV and HCV-associated diseases. Methods of using these compounds are also disclosed.
摘要:
A novel recombinant plasmid inserted with a herpes simplex virus gene, which comprises a plasmid vector containing a yeast DNA sequence and an Escherichia coli DNA sequence and carrying a promoter region and a herpes simplex virus gN gene (HSVgB) gene) recombined thereto under control of the promoter, said HSVgB gene lacking an N-terminal portion of the gene including a signal sequence-encoding region and optionally further lacking the region downstream therefrom, such as a gB gene lacking a DNA sequence encoding the N-terminal 30 amino acids, and a gB gene lacking a DNA sequence encoding the N-terminal 83 amino acids. The recombinant plasmid is useful for the production of transformed yeast, which is useful for the production of HSVgB proteins suitable for producing HSV vaccine and diagnostic reagents for herpes simplex virus infections.