eLife Assessment
Saijilafu et al. describe valuable findings suggesting that MLCK and MLCP bidirectionally regulate NMII phosphorylation ultimately impinging on axonal growth during regeneration in the central and peripheral nervous systems. Solid evidence is collected from culture and in vivo models, and through pharmacologic and genetic loss-of-function approaches. However, how MLCK and MLCP regulates NMII activity is not fully addressed or discussed. In sum, this knowledge is of potential interest for the field due to the relevance of identifying mechanistic details that regulate axonal regeneration