Toppan Printing Co., Ltd.

Osaka University

Kyushu Bunka Gakuen School Foundation

Shinji Irie

Shiro Kitano

Kei Tsukamoto

Michiya Matsusaki

Yoichi Makino

Akira Tsujimura

Yasushi Miyagawa

Hiromitsu Tanaka

The present invention relates to an abnormal cardiac rhythm myocardial model composed of a three-dimensional tissue containing cells including the cardiomyocytes and collagen, wherein at least a portion of the cells adheres to the collagen.

Abnormal cardiac rhythm myocardial model and method for producing same, agent for forming abnormal cardiac rhythm myocardial model, and method for evaluating drug efficacy of heart disease therapeutic

A method of assessing a possibility of cancerization including culturing a cell structure including normal cells and having a vascular network structure in a presence of a biological specimen from a subject, and assessing a possibility of cancerization in the subject based on a state of vessels in the cell structure after the culturing. The biological specimen is a body fluid specimen from the subject, a cell extract of cells from the subject, or a culture supernatant of cells from the subject, and the possibility of cancerization is assessed as high in the subject when a number of cells forming the vessels in the cell structure is larger than a number of cells cultured in an absence of the body fluid specimen, or when the vascular network structure in the cell structure extends.

Method and kit for assessing possibility of cancerization

A method of promoting spheroid formation, including: a preparation step of preparing a mixture obtained by mixing a cell sample with a promoter; and a culture step of culturing, inside a spheroid formation-culture vessel, the mixture obtained in the preparation step, in which the promoter is a polymer in which one or more selected from the group consisting of D-glucosamine, D-galactosamine, D-glucuronic acid, L-iduronic acid, and D-galactose are polymerized.

Method of promoting spheroid formation

A method of assessing an anti-cancer drug including culturing a cell structure including cancer cells and stromal cells in a presence of at least one anti-cancer drug, and assessing an anti-cancer effect of the at least one anti-cancer drug based on a number of viable cancer cells in the cell structure after the culturing.

Anti-cancer drug assessment method

A method of producing drug resistant cells including contacting exosomes from a living organism exhibiting drug resistance with cells exhibiting no drug resistance such that drug resistant cells are formed, and culturing the drug resistant cells.

Method of preparing cells exhibiting drug resistance, method of screening anticancer drugs, and anticancer drug screening kit

Disclosed is a three-dimensional tissue comprising cells and collagen including endogenous collagen, wherein at least a portion of the cells is adhered to the collagen, and the content of the collagen is from 10 wt % to 90 wt % based on the three-dimensional tissue.

Three-dimensional tissue body, method for producing same, and formation agent for three-dimensional tissue body

A membrane vesicle recovery device includes: a liquid filler; and at least a fused membrane having a lipid bilayer membrane which covers at least a part of the outer periphery of the liquid filler, in which a content of a membrane vesicle is mixed into the liquid filler through fusing of the membrane vesicle and the fused membrane.

Membrane vesicle recovery device, membrane vesicle recovery method, and membrane vesicle analysis method

An object of the present invention is to provide a test/diagnosis method for fertility which allows the estimation of the possibility of leading to pregnancy based on the ability of sperm to fuse with an egg and the identification of a cause of infertility; and a polynucleotide and a fertility testing kit which are used in the method. The present invention provides a test/diagnosis method for fertility, including a detection step of detecting on a biological sample taken from a human body, the presence or absence of a deletion or mutation in the human PGAM4 gene; a polynucleotide consisting of the base sequence of the human wild-type PGAM4 gene or the base sequence of the translation region of the gene, wherein the polynucleotide consists of a base sequence of 10-100 consecutive bases containing a mutated site of a single base substitution mutation having a high correlation with fertility; and a test kit for fertility comprising a reagent for detecting the presence or absence of a deletion or mutation in the human PGAM4 gene.

Growing community of inventors

Tokyo, Japan

Shinji Irie