Abstract: It is an object of the present invention to provide a cancer-suppressing agent comprising a novel cancer-suppressing gene based on the discovery of such cancer-suppressing gene. The present invention provides a cancer-suppressing agent which comprises NR1I2 gene or a homologous gene thereof, and a cancer-suppressing agent which comprises NR1I2 protein or a homologous protein thereof.

Abstract: An object of the invention is to find a cancer-associated gene to be used as an index for detecting canceration of cells and degree of malignancy of cancer, so as to to provide a method for detecting cancer using the cancer-associated gene as an index and provide a method of suppressing/treating cancer using the cancer-associated gene as essential part. According to the present invention, specific genes which are amplified or deleted in lung cancer as compared with normal cell have been collectively found, and a method for detecting cancer using amplification or deletion of these cancer-associated genes as an index is provided. Further, cancer can be suppressed by introducing a gene which is deleted in cancer cells amond these cancer-associated genes into cancer and inhibiting the transcription product of the gene amplified.

Abstract: An object of the invention is to find a cancer-associated gene to be used as an index for detecting canceration of cells and degree of malignancy of cancer, so as to to provide a method for detecting cancer using the cancer-associated gene as an index and provide a method of suppressing/treating cancer using the cancer-associated gene as essential part. According to the present invention, specific genes which are amplified or deleted in bile duct cancer as compared with normal cell have been collectively found, and a method for detecting cancer using amplification or deletion of these cancer-associated genes as an index is provided. Further, cancer can be suppressed by introducing a gene which is deleted in cancer cells amond these cancer-associated genes into cancer and inhibiting the transcription product of the gene amplified.

Abstract: An object of the invention is to find a cancer-associated gene to be used as an index for detecting canceration of cells and degree of malignancy of cancer, so as to to provide a method for detecting cancer using the cancer-associated gene as an index and provide a method of suppressing/treating cancer using the cancer-associated gene as essential part. According to the present invention, specific genes which are amplified or deleted in myeloma as compared with normal cell have been collectively found, and a method for detecting cancer using amplification or deletion of these cancer-associated genes as an index is provided. Further, cancer can be suppressed by introducing a gene which is deleted in cancer cells amond these cancer-associated genes into cancer and inhibiting the transcription product of the gene amplified.

Abstract: An object of the invention is to find a cancer-associated gene to be used as an index for detecting canceration of cells and degree of malignancy of cancer, so as to to provide a method for detecting cancer using the cancer-associated gene as an index and provide a method of suppressing/treating cancer using the cancer-associated gene as essential part. According to the present invention, specific genes which are amplified or deleted in large intestine cancer as compared with normal cell have been collectively found, and a method for detecting cancer using amplification or deletion of these cancer-associated genes as an index is provided. Further, cancer can be suppressed by introducing a gene which is deleted in cancer cells amond these cancer-associated genes into cancer and inhibiting the transcription product of the gene amplified.

Abstract: The invention provides, for example, a gene comprising a polynucleotide coding for the polypeptide having the amino acid sequence shown in SEQ ID NO:3. The gene shows amplification in the 9p23-24 region, has a PX domain and PHD finger motifs, plays an important role in cell growth and differentiation, and in tumorigenesis, and is useful in elucidating the pathology of various diseases caused by a protein involved in cell differentiation in malignant tumor or the like, and in the diagnosis and treatment of such diseases.

Abstract: A method and kit for detecting breast cancer cells is disclosed, which is not only as convenient and noninvasive as conventional cytological examination, but also is more accurate and objective than cytological examination. The invention establishes a method for detecting breast cancer cells, wherein the method judges cells examined to be breast cancer cells when aneusomy is detected on 1) either chromosome 1 or chromosome 11 or both, 2) either chromosome 1 or chromosome 17 or both or 3) at least any one of chromosomes 1, 11 and 17 of the cell sample.