Patents Assigned to Chugai Seiyako Kabushiki Kaisha
  • Patent number: 10717781
    Abstract: The present inventors discovered that neural invasion is suppressed by inhibiting IL-6 in a model for neural invasion of pancreatic cancer, and completed the present invention. The present inventors also demonstrated that: an IL-6 receptor is expressed in cells of human pancreatic cancer cell lines; and IL-6 enhances the chemotactic and migratory activities and intracellular signaling of pancreatic cancer cells; and thus pancreatic cancer can be treated by inhibiting IL-6. Furthermore, the present inventors found that neural invasion of human pancreatic cancer can be suppressed, from the results of administering IL-6 inhibitors to neural invasion model mice.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: July 21, 2020
    Assignees: National Cancer Center, Chugai Seiyako Kabushiki Kaisha
    Inventors: Shuichi Mitsunaga, Atsushi Ochiai
  • Patent number: 7892543
    Abstract: The invention provides a reshaped human anti-HM 1.24 antibody having: (A) an L chain having (1) the C region of a human L chain, and (2) the V region of an L chain having the FR of a human L chain and the CDR of the L chain of a mouse anti-HM 1.24 monoclonal antibody; and (B) an H chain having (1) the C region of a human H chain, and (2) the V region of an H chain having the FR of a human H chain and the CDR of the H chain of a mouse anti-HM 1.24 monoclonal antibody. This reshaped human antibody is derived from human antibody and the CDR has a low antigenicity, and the reshaped human antibody of the present invention has a low antigenicity and can be used for medical treatment.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: February 22, 2011
    Assignee: Chugai Seiyako Kabushiki Kaisha
    Inventors: Koichiro Ono, Toshihiko Ohtomo, Masayuki Tsuchiya, Yasushi Yoshimura, Yasuo Koishihara, Masaaki Kosaka
  • Patent number: 4791209
    Abstract: Novel furobenzisoxazole derivatives of the formula (I): ##STR1## (wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 which may be the same or different represent a hydrogen atom, a halogen atom, or a lower alkyl group having 1-4 carbon atoms; R.sub.5 is a hydroxymethyl group, a carboxyl group or a lower alkoxy carbonyl group having 1-3 carbon atoms; and X is a sulfur atom or a --CH.dbd.CH-- group), as well as intoxic salts thereof when R.sub.5 is a carboxyl group, and process for preparing the same are disclosed.The derivatives of formula (I) and nontoxic salts thereof have hypotensive, uricosuric and diuretic activities and hence ae useful as therapeutics for treating hyperuricemia, edema and hypertension.
    Type: Grant
    Filed: May 6, 1986
    Date of Patent: December 13, 1988
    Assignee: Chugai Seiyako Kabushiki Kaisha
    Inventors: Haruhiko Sato, Hiroshi Koga, Takashi Dan, Etsuro Onuma