Abstract: A method for suppressing brain metastasis includes administering an miR-181c expression inhibitor, an miR-181c activity inhibitor, or an exosome secretion inhibitor as an active ingredient.

Abstract: An object of the present invention is to provide a kit or a device for the detection of prostate cancer and a method for detecting prostate cancer. The present invention provides a kit or a device for the detection of prostate cancer, comprising a nucleic acid capable of specifically binding to a miRNA in a sample of a subject, and a method for detecting prostate cancer, comprising measuring the miRNA in vitro.

Abstract: This application provides a kit or a device for detection of ovarian tumor, comprising a nucleic acid(s) for detecting a miRNA(s) in a sample from a subject, and a method for detecting ovarian tumor, comprising measuring the miRNA(s) in vitro.

Abstract: This application provides a kit or a device for detection of lung cancer, comprising a nucleic acid(s) for detecting a miRNA(s) in a sample from a subject, and a method for detecting lung cancer, comprising measuring the miRNA(s) in vitro.

Abstract: An object of the present invention is to provide a kit or a device for the detection of prostate cancer and a method for detecting prostate cancer. The present invention provides a kit or a device for the detection of prostate cancer, comprising a nucleic acid capable of specifically binding to a miRNA in a sample of a subject, and a method for detecting prostate cancer, comprising measuring the miRNA in vitro.

Abstract: It is intended to provide a kit or a device for the detection of breast cancer and a method for detecting breast cancer. The present invention provides a kit or a device for the detection of breast cancer, comprising nucleic acid(s) capable of specifically binding to a miRNA in a sample of a subject, and a method for detecting breast cancer, comprising measuring the miRNA in vitro.

Abstract: The present invention provides a rat embryonic stem cell characterized by having the following properties of (a) expressing Oct3/4 gene and Nanog gene, (b) positive for alkaline phosphatase activity, (c) having an embryoid body forming ability, (d) expressing SSEA (Stage-Specific Embryonic Antigen)-1 and SSEA-4, (e) having the same number of chromosomes as does a normal rat cell, (f) capable of being subcultured and holding the undifferentiated state, (g) having in vitro pluripotency, (h) having a potential to differentiate for cells of three embryonic germ lineages, (i) having teratoma formation ability, and (j) having an ability to produce a chimeric rat, a method of establishing the aforementioned rat embryonic stem cell and the like.

Abstract: A method increases permeability of a blood-brain barrier in a subject. The method includes administering a small interfering ribonucleic acid (siRNA) against the 3-Phosphoinositide Dependent Protein Kinase 1 (PDPK1) gene or micro ribonucleic acid (miRNA) miR-181c as an active ingredient to the subject. The method can be applied for delivering a desired active agent to the subject.

Abstract: A method of examining a possibility of a subject having pancreatic cancer, including measuring GPRC5C (G protein-coupled receptor family C group 5 member C) present in an exosome in a specimen collected from the subject.

Abstract: [Problem] To provide: a marker and a kit both for use in the prediction of ovarian cancer prognosis; and a prognosis prediction method. [Solution] A marker and a kit, both for use in the prediction of ovarian cancer prognosis, each of said marker and kit containing a transcript of matrix metalloprotease (MMP) 1 gene; and a method for predicting ovarian cancer prognosis using the marker or the kit, in which the expression level of matrix metalloprotease (MMP) 1 gene in a biological sample collected from a subject is by detecting an ovarian cancer prognosis prediction marker comprising a transcript of matrix metalloprotease (MMP) 1 gene and then obtaining a detection value of the ovarian cancer prognosis prediction marker.

Abstract: Provided is a method for reprogramming human mature hepatocytes in vitro into liver progenitor cells capable of self-renewal. Disclosed is a method for preparing human liver progenitor cells, comprising culturing human mature hepatocytes in a medium containing serum, A-83-01, and CHIR99021.

Abstract: The invention provides a method and composition for the treatment, prevention, and diagnosis of cancer containing or derived from cancer stem cells.

Abstract: An exosome secretion inhibitor containing a substance suppressing expression of NAPG, HINT3 or GXYLT1 gene, or a substance suppressing activity of NAPG, HINT3 or GXYLT1 protein. It is possible to suppress secretion of exosome, thereby making it possible to suppress proliferation or metastasis of cancer cells, so that the substance suppressing expression of the gene or activity of the protein can be used as an active ingredient of a pharmaceutical composition suitably used in treatment of cancer or suppression of cancer metastasis, and also the substance can provide a carcinostatic agent having a new action mechanism which specifically suppresses expression of the gene or activity of the protein.

Abstract: The present invention provides a kit or device for the detection of malignant brain tumor, and a method for detecting malignant brain tumor. The present invention relates to a kit or device for the detection of malignant brain tumor, comprising nucleic acid(s) capable of specifically binding to predetermined miRNA(s) in a sample of a subject, and a method for detecting malignant brain tumor, comprising measuring the miRNA(s) in vitro.

Abstract: The present invention provides a method for producing hepatic stem/progenitor cells from mammal hepatocytes, comprising bringing a TGF?-receptor inhibitor, and optionally a GSK3 inhibitor and/or a ROCK inhibitor into contact with the hepatocytes in vitro.

Abstract: A purpose of the present invention is to provide a diagnosis and risk evaluation method for cancer brain metastasis and a treatment and prevention method therefor by clarifying the mechanism of blood-brain barrier (BBB) disruption in brain metastasis. Another purpose of the present invention is to provide a drug delivery system to the brain. Still another purpose of the present invention is to provide a medicine, composition and kit to be used in these methods. Therefore, the present invention relates to a method for diagnosing brain metastasis or evaluating the risk of the occurrence of brain metastasis. The method includes the step of determining miR-181c level in a specimen. Further, the present invention relates to a method for treating or preventing brain metastasis. The method includes the step of inhibiting the expression or activity of miR-181c in a cancer patient.

Abstract: The purpose of the present invention is to provide an agent for improving skin looseness or aging caused by dermal cavitation. By attracting fat stem cells into cavities in the dermis, dermal fibroblasts around the cavities can be activated and thus dermal cavitation can be ameliorated. As the results of a screening for fat stem cell attractants, it was found that rosemary extract and licorice extract are capable of attracting fat stem cells and, therefore, can improve skin looseness or aging caused by dermal cavitation.

Abstract: The present invention provides a rat embryonic stem cell characterized by having the following properties of (a) expressing Oct3/4 gene and Nanog gene, (b) positive for alkaline phosphatase activity, (c) having an embryoid body forming ability, (d) expressing SSEA (Stage-Specific Embryonic Antigen)-1 and SSEA-4, (e) having the same number of chromosomes as does a normal rat cell, (f) capable of being subcultured and holding the undifferentiated state, (g) having in vitro pluripotency, (h) having a potential to differentiate for cells of three embryonic germ lineages, (i) having teratoma formation ability, and (j) having an ability to produce a chimeric rat, a method of establishing the aforementioned rat embryonic stem cell and the like.

Abstract: [Problem] To provide the following: an agent for treating cancer, particularly an agent for inhibiting cancer cell proliferation or an agent for inhibiting or preventing cancer metastasis; drug that uses the agent; a method for assessing the effect of cancer treatment; a method for estimating the prognosis of cancer treatment; a method for screening for a substance having a cancer proliferation-inhibiting effect; and a method for screening a substance having a cancer metastasis-impeding effect. [Solution] Provided is a drug containing a nucleic acid formed from a nucleotide sequence having sequence identity of 70% or greater with at least sequence No. 1 or No. 2, wherein the nucleic acid shows protein expression-inhibiting activity.

Abstract: The invention provides a method and composition for the treatment, prevention, and diagnosis of cancer containing or derived from cancer stem cells.