Abstract:
An object of the present invention is to provide a method for predicting a risk of developing cancer. DNA samples were prepared from blood and cancer tissues of 2480 cancer patients and analyzed for the nucleotide sequences of exon regions using NGS. As a result, among the cancer patients, 7 patients were confirmed to have D49H mutation or A159D mutation which is a germ cell mutation.
Abstract:
Provided are a method for detecting a gene mutation using an FFPE tissue section containing tumor cells regardless of the percentage of tumor cells, the method being capable of increasing the number of detectable gene mutations and mutant allele frequency, and a method capable of differentiating, even in the absence of blood samples, a somatic cell mutation from a germ cell line mutation. A method for detecting a gene mutation according to the present invention comprises: a dissociation step for dissociating a single cell population from a formalin-fixed paraffin-embedded tissue section containing tumor cells; a separation step for obtaining a tumor fraction containing the tumor cells from the single cell population; a collection step for collecting a nucleic acid molecule from the tumor fraction; and a sequencing step for subjecting the nucleic acid molecule to sequencing.
Abstract:
An object of the present invention is to provide a method for collecting highly accurate data for diagnosis, useful in diagnosing the presence or absence of extrahepatic bile duct carcinoma, intrahepatic bile duct carcinoma, or gallbladder carcinoma, and a kit for diagnosis.When the concentration of CEACAM1 in a blood sample collected from a test subject is detected using a kit for diagnosis comprising an antibody specifically binding to CEACAM1 or a labeled product thereof, or the like and the CEACAM1 concentration is higher than the concentration of CEACAM1 in a blood sample derived from a non-carcinoma control subject or higher than a certain threshold value (cutoff value), data can be collected for diagnosing the test subject as having a high possibility of having extrahepatic bile duct carcinoma, intrahepatic bile duct carcinoma, or gallbladder carcinoma.
Abstract:
A protein retrieval treatment system used for activating proteins contained in a deparaffinized tissue section obtained by removing paraffin from a formalin-fixed paraffinembedded tissue section. The protein retrieval treatment system includes: a dispensing unit for dispensing a retrieval treatment solution over a dispensing area including a measurement area on the deparaffinized tissue section; and a moist-heat treatment unit for heating, in a saturated water vapor, the deparaffinized tissue section with the dispensing area covered with the retrieval treatment solution.
Abstract:
An object of the present invention is to provide a method for predicting a risk of developing cancer. DNA samples were prepared from blood and cancer tissues of 2480 cancer patients and analyzed for the nucleotide sequences of exon regions using NGS. As a result, among the cancer patients, 7 patients were confirmed to have D49H mutation or A159D mutation which is a germ cell mutation.