The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 23, 2022

Filed:

Apr. 06, 2016
Applicants:

Reprocell Incorporated, Yokohama, JP;

Sbi Pharmaceuticals Co., Ltd., Tokyo, JP;

Inventors:

Shunsuke Yoshida, Yokohama, JP;

Mitsuru Inamura, Yokohama, JP;

Tohru Tanaka, Tokyo, JP;

Hiroyuki Ishikawa, Tokyo, JP;

Hidenori Ito, Tokyo, JP;

Assignees:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C12N 5/00 (2006.01); C12N 5/16 (2006.01); C12N 1/02 (2006.01); C12N 5/10 (2006.01); C12N 1/00 (2006.01); C07C 233/56 (2006.01);
U.S. Cl.
CPC ...
C12N 5/16 (2013.01); C07C 233/56 (2013.01); C12N 1/00 (2013.01); C12N 1/02 (2013.01); C12N 5/0081 (2013.01); C12N 5/10 (2013.01); C12N 2500/32 (2013.01); C12N 2529/10 (2013.01);
Abstract

A stem cell removing method that certainly-removes an undifferentiated stem cell is provided. For this object, a cell group including a stem cell and a somatic cell performed differentiation induction is cultivated in culture medium composition including photosensitizer. Light of a specific wavelength is irradiated with the cell group, and the stem cell is removed, selectively. The stem cell is a pluripotent stem cell or a somatic stem cell. The pluripotent stem cell includes either an ES cell (Embryonic Stem Cell) or an iPS cell (induced Pluripotent Stem Cell). Also, somatic stem cell includes any one of a germ stem cell, a productive cell, a pluripotent stem cell and a stem cell having unipotency.


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