Abstract: [PROBLEMS] To provide examination methods and reagents able to detect efficiently cancer patients and patients at high risk of cancer. [MEANS FOR SOLVING PROBLEMS] Significant differences in the distribution of GlcNAc-6-sulfotransferase isozymes, sulfation enzymes of sugar residues, between non-carcinoma tissues and carcinoma tissues or adenoma tissues were discovered. The discovery is evidently applicable to detect carcinomas and adenomas (except colorectal carcinomas and colorectal adenomas) specifically by assaying a certain range of GlcNAc-6-sulfated sugar residue groups in tissues of patients and in fecal samples. Examination of carcinomas and adenomas is possible by the use of antibodies reacting specifically with GlcNAc-6-sulfated sugar residues specifically synthesized by enzymes present in carcinoma and adenoma tissues.

Abstract: A polypeptide of N-acetylglucosamine-6-O-sulfotransferase and a DNA encoding the peptide are provided. The polypeptide is (a) or (b) below: (a) a polypeptide having the amino acid sequence represented by SEQ ID NO: 2; or (b) a polypeptide which includes an amino acid sequence including substitution, deletion, insertion or transposition of one or a few amino acids in the amino acid sequence of (a) and which has an enzymatic activity to transfer a sulfate group from a sulfate group donor to a hydroxyl group at 6 position of an N-acetylglucosamine residue located at a non-reducing end of an oligosaccharide represented the formula I: GlcNAc?1-3Gal?1-4GlcNAc??(I) where GlcNAc represents an N-acetyl-glucosamine residue, Gal represents a galactose residue, ? 1-3 represents a ? 1-3 glycosidic linkage, and ? 1-4 represents a ? 1-4 glycosidic linkage.

Abstract: The present invention provides a method for examining colorectal cancer and colorectal adenoma, which enables to detect colorectal cancer patients and patients at high risk of colorectal cancer at a high probability and is useful for diagnosis of colorectal cancer and colorectal adenoma, and provides the examination reagents thereof. There are significant differences in the distribution of GlcNAc-6-sulfotransferase isozymes, sulfation enzymes of sugar residues, among non-cancer colorectal tissues, colorectal cancer tissues and colorectal adenoma tissues. Furthermore, colorectal cancers and adenomas are detected specifically by assaying a definite range of GlcNAc-6-sulfated sugar residues in tissues from patients or feces samples. MECA-79 antibody (Pharmingen, catalog No.

Abstract: The present invention provides a method for examining colorectal cancer and colorectal adenoma, which enables to detect colorectal cancer patients and patients at high risk of colorectal cancer at a high probability and is useful for diagnosis of colorectal cancer and colorectal adenoma, and provides the examination reagents thereof. The present inventors discovered that there are significant differences in the distribution of GlcNAc-6-sulfotransferase isozymes, sulfation enzymes of sugar residues, among non-cancer colorectal tissues, colorectal cancer tissues and colorectal adenoma tissues. Furthermore the inventors applied the discovery to diagnosis and found that colorectal cancers and adenomas are detected specifically by assaying a definite range of GlcNAc-6-sulfated sugar residues in tissues from patients or feces samples. MECA-79 antibody (Pharmingen, catalog No.

Abstract: A polypeptide of N-acetylglucosamine-6-O-sulfotransferase and a DNA encoding the peptide are provided. The polypeptide is (a) or (b) below: (a) a polypeptide consisting of an amino acid sequence represented by SEQ ID NO: 2; or (b) a polypeptide which comprises an amino acid sequence including substitution, deletion, insertion or transposition of one or few amino acids in the amino acid sequence of (a) and which has an enzymatic activity to transfer a sulfate group from a sulfate group donor to a hydroxyl group at 6 position of an N-acetylglucosamine residue located at a non-reducing end of an oligosaccharide represented by the formula I: GlcNAc?1-3Gal?1-4GlcNAc ??(I) wherein GlcNAc represents an N-acetylglucosamine residue, Gal represents a galactose residue, ?1-3 represents a ?1-3 glycosidic linkage, and ?1-4 represents a ?1-4 glycosidic linkage.

Abstract: [PROBLEMS] To provide examination methods and reagents able to detect efficiently cancer patients and patients at high risk of cancer. [MEANS FOR SOLVING PROBLEMS] Significant differences in the distribution of GlcNAc-6-sulfotransferase isozymes, sulfation enzymes of sugar residues, between non-carcinoma tissues and carcinoma tissues or adenoma tissues were discovered. The discovery is evidently applicable to detect carcinomas and adenomas (except colorectal carcinomas and colorectal adenomas) specifically by assaying a certain range of GlcNAc-6-sulfated sugar residue groups in tissues of patients and in fecal samples. Examination of carcinomas and adenomas is possible by the use of antibodies reacting specifically with GlcNAc-6-sulfated sugar residues specifically synthesized by enzymes present in carcinoma and adenoma tissues.

Abstract: The present invention provides a method for examining colorectal cancer and colorectal adenoma, which enables to detect colorectal cancer patients and patients at high risk of colorectal cancer at a high probability and is useful for diagnosis of colorectal cancer and colorectal adenoma, and provides the examination reagents thereof. The present inventors discovered that there are significant differences in the distribution of GlcNAc-6-sulfotransferase isozymes, sulfation enzymes of sugar residues, among non-cancer colorectal tissues, colorectal cancer tissues and colorectal adenoma tissues. Furthermore the inventors applied the discovery to diagnosis and found that colorectal cancers and adenomas are detected specifically by assaying a definite range of GlcNAc-6-sulfated sugar residues in tissues from patients or feces samples. MECA-79 antibody (Pharmingen, catalog No.

Abstract: A polypeptide of N-acetylglucosamine-6-O-sulfotransferase and a DNA encoding the peptide are provided. The polypeptide is (a) or (b) below: (a) a polypeptide consisting of an amino acid sequence represented by SEQ ID NO: 2; or (b) a polypeptide which comprises an amino acid sequence including substitution, deletion, insertion or transposition of one or few amino acids in the amino acid sequence of (a) and which has an enzymatic activity to transfer a sulfate group from a sulfate group donor to a hydroxyl group at 6 position of an N-acetylglucosamine residue located at a non-reducing end of an oligosaccharide represented by the formula I: GlcNAc?1-3Gal ?1-4GlcNAc??(I) wherein GlcNAc represents an N-acetylglucosamine residue, Gal represents a galactose residue, ?1-3 represents a ?1-3 glycosidic linkage, and ?1-4 represents a ?1-4 glycosidic linkage.

Abstract: Apolypeptide of N-acetylglucosamine-6-O-sulfotransferase and a DNA encoding the peptide are provided. The polypeptide is (a) or (b) below: (a) a polypeptide consisting of an amino acid sequence represented by SEQ ID NO: 2; or (b) a polypeptide which comprises an amino acid sequence including substitution, deletion, insertion or transposition of one or few amino acids in the amino acid sequence of (a) and which has an enzymatic activity to transfer a sulfate group from a sulfate group donor to a hydroxyl group at 6 position of an N-acetylglucosamine residue located at a non-reducing end of an oligosaccharide represented by the formula I: GlcNAc?1-3Gal?1-4GlcNAc ??(I) wherein GlcNAc represents an N-acetylglucosamine residue, Gal represents a galactose residue, ?1-3 represents a ?1-3 glycosidic linkage, and ?1-4 represents a ?1-4 glycosidic linkage.

Abstract: Apolypeptide of N-acetylglucosamine-6-O-sulfotransferase and a DNA encoding the peptide are provided.

Abstract: Apolypeptide of N-acetylglucosamine-6-O-sulfotransferase and a DNA encoding the peptide are provided. The polypeptide is (a) or (b) below: (a) a polypeptide consisting of an amino acid sequence represented by SEQ ID NO: 2; or (b) a polypeptide which comprises an amino acid sequence including substitution, deletion, insertion or transposition of one or few amino acids in the amino acid sequence of (a) and which has an enzymatic activity to transfer a sulfate group from a sulfate group donor to a hydroxyl group at 6 position of an N-acetylglucosamine residue located at a non-reducing end of an oligosaccharide represented by the formula I: GlcNAc&bgr;1-3Gal&bgr;1-4GlcNAc  (I) wherein GlcNAc represents an N-acetylglucosamine residue, Gal represents a galactose residue, &bgr;1-3 represents a &bgr;1-3 glycosidic linkage, and &bgr;1-4 represents a &bgr;1-4 glycosidic linkage.

Abstract: Apolypeptide of N-acetylglucosamine-6-O-sulfotransferase and a DNA encoding the peptide are provided. The polypeptide is (a) or (b) below:(a) a polypeptide consisting of an amino acid sequence represented by SEQ ID NO: 2; or(b) a polypeptide which comprises an amino acid sequence including substitution, deletion, insertion or transposition of one or few amino acids in the amino acid sequence of (a) and which has an enzymatic activity to transfer a sulfate group from a sulfate group donor to a hydroxyl group at 6 position of an N-acetylglucosamine residue located at a non-reducing end of an oligosaccharide represented by the formula I:GlcNAc.beta.1-3Gal.beta.1-4GlcNAc (I)wherein GlcNAc represents an N-acetylglucosamine residue, Gal represents a galactose residue, .beta.1-3 represents a .beta.1-3 glycosidic linkage, and .beta.1-4 represents a .beta.1-4 glycosidic linkage.

Abstract: A monoclonal antibody A exhibits specificity to the sialic acid glycolipid containing the epitope NeuAc.alpha.2.fwdarw.9NeuAc terminal. A monoclonal antibody B exhibits specificity to the sialic acid glycolipid containing the epitope NeuAc.alpha.2.fwdarw.6Gal.beta. terminal. A monoclonal antibody C exhibits specificity to the sialic acid glycolipid containing at least one epitope selected from the group of NeuAc.alpha.2.fwdarw.9NeuAc terminal, NeuAc.alpha.2.fwdarw.6Gal.beta. terminal and NeuAc.alpha.2.fwdarw.1Cer. Hybridomas are prepared which produce antibodies A, B and C. A process for producing the hybridomas is disclosed including the step of fusing a myeloma cell and a B cell (lymphocyte) produced by the immunization of animal using as an antigen, the sialic acid glycolipid containing at least one epitope of the group NeuAc.alpha.2.fwdarw.9NeuAc terminal, NeuAc.alpha.2.fwdarw.6Gal.beta. terminal and NeuAc.alpha.2.fwdarw.1Cer.

Abstract: Hybridomas which produce monoclonal antibodies specific to an abnormal branched determinant of a synthetic glycolipid antigen and methods of use of the monoclonal antibodies.