The present disclosure provides methods for introducing a gene encoding a muscle membrane protein into a cell isolated from a subject to generate a genetically modified cell. The genetically modified cell may be introduced back, e.g., engrafted into the subject. The isolated cell may be additionally modified by introducing into the isolated cell a gene encoding one or more reprogramming transcription factors that induce the cell to form an induced pluripotent stem cell. The genetically modified cell may be differentiated in vitro to form muscle cell precursors before engrafting into the subject. Also provided are compositions comprising autologous cells isolated from a subject which cells comprise a muscle membrane protein gene integrated into a genome attachment site in the genome of the cell. The autologous cell may be an induced pluripotent cell or a mesenchymal stem cell, such as an adipose-derived mesenchymal stem cell (AD-MSC).

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