摘要:
A compound having strong antitumor activity. It is a compound represented by the formula (I) or a pharmaceutically acceptable salt or solvate of the compound: (I) [wherein X is CH or nitrogen; Z is oxygen or sulfur; L is oxygen or sulfur; M is CR10R11 (R10 and R11 each is hydrogen, alkyl, or alkoxy) or NR12 (R12 is hydrogen or alkyl); R1, R2, R3 each is hydrogen or optionally substituted alkoxy; R4 is hydrogen; R5 to R8 each is hydrogen, halogeno, alkoxy, etc.; and R9 is -R14, alkyl optionally substituted by -T-R15 or -NR16R17 (T is oxygen, sulfur, or NH; R14 is an optionally substituted carbon ring or heterocycle; and R15 to R17 each is alkyl or an optionally substituted carbon ring or heterocycle), -NR18R19 (R18 and R19 each is hydrogen, optionally substituted alkyl, or an optionally substituted carbon ring or heterocycle), or an optionally substituted carbon ring or heterocycle].
摘要:
The present invention provides a transgenic nonhuman mammal, preferably a rodent, comprising two human immunoglobulin loci, wherein one of two said human immunoglobulin loci is a human heavy chain locus and the other locus is a human light chain locus; and wherein only one of said loci is of a transchromosome. In some transgenic nonhuman mammals, the endogenous mammalian heavy chain locus and at least one mammalian light chain locus are inactivated. In some such transgenic nonhuman mammals, the endogenous mammalian heavy chain locus and kappa light chain locus are inactivated. The present invention further provides methods of generating a plurality of B cells from a transgenic nonhuman mammal expressing human antibody sequences. Additional methods of the invention comprise fusing the plurality of B cells with immortalized cells to form hybridomas. The present invention also provides methods of generating a human sequence antibody from a transgenic nonhuman mammal.
摘要:
The present invention relates to a human artificial chromosome which is genetically transmissible to the next generation with high efficiency and the method for using the same. More specifically, the present invention relates to: a human artificial chromosome in which an about 3.5 Mb to about 1 Mb region containing an antibody lambda light chain gene derived from human chromosome 22 is bound to a chromosome fragment which is transmissible to a progeny through a germ line of a non-human animal, said chromosome fragment is derived from another human chromosome; a non-human animal carrying the human artificial chromosome and an offspring thereof; a method for producing the non-human animal; a method for producing a human antibody using the non-human animal or an offspring thereof; and a human antibody-producing mouse carrying the human artificial chromosome.
摘要:
It is intended to provide highly stable variants of human antibody IgG2 and IgG3 subclasses. The present invention provides an IgG heavy chain comprising the constant region of a human IgG2 heavy chain having at least a substitution of Y for F at the 300th position, L for V at the 309th position, or A for T at the 339th position designated by the EU index of Kabat et al. and an IgG heavy chain comprising the constant region of a human IgG3 heavy chain having at least a substitution of K for N at the 392nd position or V for M at the 397th position designated by the EU index of Kabat et al. The present invention also provides monoclonal antibodies comprising these heavy chains.
摘要:
An objective of the present invention is to provide compounds having potent antitumor activity. The compounds of the present invention are represented by formula (I) or a pharmaceutically acceptable salt or solvate thereof:
摘要:
This invention relates to a human artificial chromosome (HAC) vector carrying a human chromosome-derived centromere, a subtelomere sequence, and a telomere sequence, to a human cell medicine or human cells comprising the HAC vector, to methods for preparing the HAC vector and human cells, and to methods for producing a therapeutic protein using the HAC vector.
摘要:
An endo-β-N-acetylglucosaminidase gene encoding the following protein (a) or (b): (a) a protein comprising an amino acid sequence represented by SEQ ID NO:3; and (b) a protein comprising an amino acid sequence derived from the amino acid sequence represented by SEQ ID NO:3 by deletion, substitution, insertion or addition of at least one amino acid and having the activity of endo-β-N-acetylglucosaminidase.
摘要:
The present invention relates to a human artificial chromosome which is genetically transmissible to the next generation with high efficiency and the method for using the same. More specifically, the present invention relates to: a human artificial chromosome in which an about 3.5 Mb to about 1 Mb region containing an antibody λ light chain gene derived from human chromosome 22 is bound to a chromosome fragment which is transmissible to a progeny through a germ line of a non-human animal, said chromosome fragment is derived from another human chromosome; a non-human animal carrying the human artificial chromosome and an offspring thereof; a method for producing the non-human animal; a method for producing a human antibody using the non-human animal or an offspring thereof; and a human antibody-producing mouse carrying the human artificial chromosome.
摘要:
A method for producing a chimeric non-human animal, which comprises preparing a microcell containing a foreign chromosome(s) or a fragment(s) thereof and transferring the foreign chromosome(s) or fragment(s) thereof into a pluripotent cell by fusion with the microcell. A chimeric non-human animal which can be produced by the above method and its progeny; tissues and cells derived therefrom; and a method for using the same. Further, a pluripotent cell containing a foreign chromosome(s) or a fragment(s) thereof, a method for producing the same, and a method for using the same are also provided.
摘要:
The present invention relates to dendritic cell and cell mixture which is capable of suppressing T cell-dependent immune response specific for an antigen. The dendritic cell according to the present invention is a dendritic cell capable of suppressing T cell-dependent immune response specific for an antigen, which presents antigen fragment of said antigen which is presented against T cell in said immune response, and alpha-glycosylceramide derivative. The cell mixture according to the present invention is a cell mixture capable of suppressing T cell-dependent immune response specific for an antigen, which comprises dendritic cells presenting at least antigen fragment of said antigen which is presented against T cell in said immune response, and dendritic cells presenting at least alpha-glycosylceramide derivative.