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:
Jun. 24, 2025

Filed:

Mar. 13, 2020
Applicant:

Dystrogen Therapeutics Corporation, Chicago, IL (US);

Inventor:

Maria Siemionow, Chicago, IL (US);

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 35/34 (2015.01); C12N 5/077 (2010.01); C12N 5/12 (2006.01);
U.S. Cl.
CPC ...
A61K 35/34 (2013.01); C12N 5/0658 (2013.01); C12N 5/12 (2013.01);
Abstract

The present invention relates to methods and compositions for generating and using myoblast chimeric cells (MCCs) for treating a muscle disease, such as muscular dystrophy, where the MCCs are composed of a myoblast derived from a patient with muscle disease (MD) and a myoblast from a donor without the MD (e.g., a healthy donor). In certain embodiments, cell fusion methods are performed using 2-4, or 5, times passaged myoblasts from the MD and donor subject, and/or polyethylene glycol 0.5-1.5 g/ml. In other embodiments, the MCCs created by fusion are passaged 1-5 times before use, and are passaged at 60-80% confluency. In further embodiments, the myoblasts and/or MCCs are tested at any stage during the process for less than 5-10% CD34 and/or CD45 expression, and/or greater than 50-70% CD56 and/or CD90 expression.


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