Mechanotransduction in distinct F-actin architectures: a novel molecular tension sensor revealing cellular mechanical anisotropy

Mechanotransduction is essential for cell fate and behavior, and F-actin plays a key role in the generation and transmission of molecular forces. A recent study published in Nature Communication presented a novel high-precision molecular tension measurement method using a Förster resonance energy transfer–based tension sensor with separated load-bearing function within distinct F-actin structures, and demonstrated that cellular mechanical anisotropy depends on cell shape, loading direction, and magnitude.