A novel microfluidic co-culture system successfully formed functional 3D in vitro neuromuscular junctions, allowing for the quantification of muscle contractile responses to electrical stimulation.
A novel microfluidic device successfully creates a 3D in vitro neuromuscular junction model for studying neuromuscular diseases and drug screening.
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There is a growing demand for advanced in vitro platforms that accurately replicate in vivo biological systems for disease modeling. Specifically, developing physiologically relevant models of the neuromuscular junction (NMJ) is crucial for studying neuromuscular diseases. To address this need, we have developed a novel microfluidic device to construct a 3D in vitro NMJ model. The device comprises two distinct culture chambers: one dedicated to motor neurons and the other to engineered 3D skeletal muscle tissue. These chambers are connected via an array of microchannels, which guide axonal outgrowth from the neuronal compartment toward the muscle compartment, thereby enabling targeted innervation of the 3D muscle construct. Upon successful formation of functional NMJs, the contractile response of the muscle tissue is quantified following electrical stimulation, allowing for the evaluation of neuromuscular connectivity and functionality. This platform enables the creation of a functional and structurally organized 3D neuromuscular junction, offering a valuable tool for investigating the pathophysiology of neuromuscular diseases and for the screening of potential therapeutic agents.
Yamazaki et al. (Wed,) reported a other. A novel microfluidic co-culture system successfully formed functional 3D in vitro neuromuscular junctions, allowing for the quantification of muscle contractile responses to electrical stimulation.