High efficiency transfection of primary skeletal muscle cells with lipid‐based reagents

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Abstract
Lipofection is a convenient method for gene transfer into muscle cells but reportedly is inefficient. We tested the efficacy of commercially available lipid-based and polyamine transfection reagents. Primary rat skeletal muscle cell cultures were transfected at three stages of development and assayed after fusion. Efficiency reached 30% during the proliferation stage and up to 23% when most myoblasts had fused into myotubes. Optimization of transfection conditions with three different vectors yielded efficiencies exceeding 50%. Thus, lipid-based transfection into primary skeletal muscle cells can be several times more efficient than previously reported. © 2002 Wiley Periodicals, Inc. Muscle Nerve 26: 136–140, 2002