Juridical Foundation the Chemo-sero-therapeutic Research Institute

Sachio Tokiyoshi

Hiroaki Maeda

Kazuhiko Kimachi

Yasuyuki Eda

Yoichi Ono

Takayuki Imamura

Kiyoto Nishiyama

Takeshi Fujiyasu

Yoshitaka Imagawa

Kiyoshi Osatomi

Kouichi Shiosaki

Fukusaburo Hamada

Masashi Sakaguchi

Eiji Tokunaga

Keiichi Makizumi

Kazuo Matsuo

Hirofumi Higuchi

Yoichiro Kino

Takeshi Mikami

Toshio Hattori

Kiyoshi Takatsuki

Shuzo Matsushita

Yuji Ishikawa

Yukinobu Tohya

Kanako Masuda

A novel peptide obtained fromhas been found useful for preventing avian infectious coryza. This polypeptide induces production of hemagglutination-inhibition antibody and prevents infection and onset of avian infectious coryza. The invention further provides a gene coding for the polypeptide, a recombinant vector for expression of this gene, a host transformed with this vector, a process for preparing the polypeptide in a host, a vaccine for avian infectious coryza comprising the polypeptide as an active ingredient, a monoclonal antibody obtained using the polypeptide as an immunogen, and a diagnostic agent and a therapeutic agent for avian infectious coryza using the peptide and the antibody.

Polypeptide for Haemophilus paragallinarum and process for preparing the same

A novel MDCK-derived cell line (B-702) is provided that can be grown in the absence of fetal calf serum and in suspension culture for allowing a tank culture on the production scale and needs no carrier in suspension culture, as well as a process for producing virus for vaccine by using said cell line in a low-cost, highly safe and stable manner.

Cell usable in serum-free culture and suspension culture and process for producing virus for vaccine by using the cell

A novel feline cytokine protein having the activity to enhance the cytotoxic activity of feline cytotoxic T lymphocytes, a DNA sequence coding for said protein, a recombinant DNA for expressing said protein, an expression vector comprising said recombinant DNA, a transformant which is transformed with said expression vector, a process for preparing said protein by culturing said transformant, and an antibody against said protein are provided. The novel feline cytokine protein of the present invention is a heterologous dimer comprising FLAF p35 and FLAF p40 and can be used for treating feline infectious diseases such as feline herpes virus type 1 (FHV-1) or feline calicivirus (FCV).

Feline cytokine protein

A novel peptide obtained from has been found useful for preventing avian infectious coryza. This polypeptide induces production of hemagglutination-inhibition antibody and prevents infection and onset of avian infectious coryza. The invention further provides a gene coding for the polypeptide, a recombinant vector for expression of this gene, a host transformed with this vector, a process for preparing the polypeptide in a host, a vaccine for avian infectious coryza comprising the polypeptide as an active ingredient, a monoclonal antibody obtained using the polypeptide as an immunogen, and a diagnostic agent and a therapeutic agent for avian infectious coryza using the peptide and the antibody.

Polypeptide originating in haemophilus paragallinarum and process for producing the same

Anti-HIV monoclonal antibody

A Gene fragment which comprises a DNA sequence coding for an amino acid sequence of a constant region of feline immunoglobulin .lambda. chain; a gene fragment which comprises a DNA sequence coding for an amino acid sequence of a constant region of feline immunoglobulin .kappa. chain; a gene fragment which comprises a DNA sequence coding for the constant region of feline immunoglobulin .gamma. chain; a recombinant DNA molecule coding for an amino acid sequence of a mouse-cat chimeric antibody which comprises a gene fragment coding for an amino acid sequence of a variable region of a mouse immunoglobulin and a gene fragment coding for an amino acid sequence of a constant region of a feline immunoglobulin wherein the latter gene fragment is linked to the 3' site of the former gene fragment; a polypeptide of a mouse-cat chimeric antibody which is expressed from a cell transformed with an expression vector for cells wherein said recombinant DNA molecule coding for an amino acid sequence of the mouse-cat chimeric antibody is incorporated; a cat-mouse heterohybridoma which produces feline immunoglobulin; and a process for preparing a feline immunoglobulin gene.

Cat-mouse heterohybridoma and gene fragment coding for constant region

A gene fragment which comprises a DNA sequence coding for an amino acid sequence of a constant region of canine immunoglobulin lambda chain; a gene fragment which comprises a DNA sequence coding for an amino acid sequence of a constant region of canine immunoglobulin kappa chain; a gene fragment which comprises a DNA sequence coding for the constant region of canine immunoglobulin gamma chain; a recombinant DNA molecule coding for an amino acid sequence of a mouse-dog chimeric antibody which comprises a gene fragment coding for an amino acid sequence of a variable region of a mouse immunoglobulin and a gene fragment coding for an amino acid sequence of a constant region of a canine immunoglobulin wherein the latter gene fragment; a polypeptide of a mouse-dog chimeric antibody which is expressed from a cell transformed with an expression vector for cells wherein said recombinant DNA molecule cording for an amino acid sequence of the mouse-dog chimeric antibody is incorporated; a dog-mouse heterohybridoma which produces canine immunoglobulin; and a process for preparing a canine immunoglobulin gene.

Dog-mouse heterohybridoma and gene fragment coding for constant region

Anti-FCV (feline calicivirus) feline-type recombinant antibody effective for treatment, prevention and diagnosis of FCV infection and a gene fragment useful for preparation of said antibody are provided. Cell line 1D7 capable of producing a mouse monoclonal antibody having an excellent FCV-neutralizing activity was constructed and a gene fragment coding for the V region in charge of the FCV-specific binding of said antibody was obtained. This gene fragment and the gene coding for the constant region of the feline antibody are used to give a chimeric anti-FCV recombinant antibody. The obtained recombinant antibody is a novel antibody and is useful for the diagnosis, treatment and prevention of feline virus infections, particularly feline calicivirus infection, with high safety in administration into cats.

Anti-feline calicivirus recombinant antibody and gene fragment encoding

Recombinant anti-HIV antibody and process for preparing the same

Anti-feline herpes virus-1 recombinant antibody and gene fragment coding

A murine monoclonal antibody which specifically binds to a glycoprotein antigen having a molecular weight of about 12.times.10.sup.4 daltons (gp120) present in the envelope of human T-lymphotropic virus III.sub.MN (HTLV-III.sub.MN) and capable of neutralizing the HTLV-III.sub.MN as determined by in vitro inhibition of syncytium formation but does not bind to other HTLV-III strains, or antigen-binding fragments, which is useful for prophylaxis, treatment and diagnosis of AIDS.

HIV monoclonal antibody specific for the HTLV-III.sub.mn gp120 envelope

Method for producing exogenous protein

A gene fragment which comprises a DNA sequence coding for an amino acid sequence of a constant region of canine immunoglobulin lambda chain; a gene fragment which comprises a DNA sequence coding for an amino acid sequence of a constant region of canine immunoglobulin kappa chain; a gene fragment which comprises a DNA sequence coding for the constant region of canine immunoglobulin gamma chain; a recombinant DNA molecule coding for an amino acid sequence of a mouse-dog chimeric antibody which comprises a gene fragment coding for an amino acid sequence of a variable region of a mouse immunoglobulin and a gene fragment coding for an amino acid sequence of a constant region of a canine immunoglobulin; a polypeptide of a mouse-dog chimeric antibody which is expressed from a cell transformed with an expression vector for cells wherein said recombinant DNA molecule cording for an amino acid sequence of the mouse-dog chimeric antibody is incorporated; a dog-mouse heterohybridoma which produces canine immunoglobulin; and a process for preparing a canine immunoglobulin gene.

Growing community of inventors

Kumamoto, Japan

Sachio Tokiyoshi