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:
The present invention provides a method and probe for determining colibactin and a colibactin-producing bacterium. According to the present invention, there is provided a fluorescent probe for detecting myristoyl asparagine using, for example, a tissue sample and a fecal sample and detecting enzyme activity of ClbP.
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:
There is provided a system and method for managing a case database that can enhance the quality of information to be registered. Once a user performs an operation to request registration of a case, it is first searched whether or not a case that can be determined to be similar to the case has already been registered in a case database. A result of the search is then reported, while executable processing options determined based on the result of the search are also reported. If the case that can be determined to be similar has already been registered, the executable processing options include processing of registering as a new case, processing of registering by adding into an existing case, and processing of cancelling registration. If the case that can be determined to be similar has not been registered, the executable processing options include processing of registering as a new case and processing of cancelling registration. The user selects processing to be executed out of the reported executable processing options. Accordingly, only the cases truly needed by the user can be registered into the case database.
Abstract:
The present invention relates to a method of analyzing a polyamine having a plurality of amino groups in the same molecule or a monoamine having an amino group and a phenolic hydroxyl group in the same molecule on the basis of the measurement result of the intensity of excimer fluorescence emitted as a result of the derivatization of the polyamine or the monoamine with a fluorescence derivatization reagent having a pyrene group. The method is characterized in that the fluorescence derivatization reagent comprises 2-chloro-4-methoxy-6-(4-(pyren-1-yl) butoxy)-1, 3, 5-triazine represented by the formula (2).
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:
The object of the present invention is to provide an evaluation method capable of accurately determining a metastasis of cancer, the stage of cancer progression, or the malignancy of cancer.The object can be solved by a method for detecting the degree of malignancy of each of the circulating tumor cells, characterized by the following steps: (a) bringing an epithelial cell-binding component, which specifically binds to a marker molecule expressed on epithelial cells and is fluorescently-labeled or luminescent enzyme-labeled, and a mesenchymal cell-binding component, which specifically binds to a marker molecule expressed on mesenchymal cells and is fluorescently-labeled or luminescent enzyme-labeled, into contact with a sample that possibly contains circulating tumor cells, (b) detecting a fluorescence signal or a luminescence signal of the epithelial cell-binding component and a fluorescence signal or a luminescence signal of the mesenchymal cell-binding component of each of the cells, and (c) determining the degree of epithelial-mesenchymal transition of circulating tumor cells based on the signal amount of the epithelial cell-binding component (E) and the signal amount of the mesenchymal cell-binding component (M).
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:
A chemical composition for reducing stress on a plant comprising: at least one substance (A) selected from the group consisting of compounds represented by Formula (I) and the like and a salt thereof; and a substance (B) which affects a physiological function of the plant [in Formula (I), R1 to R4 each independently represents a hydrogen atom, —SO3H, —PO3H2, glycosyl group or —COR11. R11 represents an unsubstituted or substituted C1 to C30 alkyl group or an unsubstituted or substituted C2 to C30 alkenyl group.].