Individual cells must rapidly repair any cortical damage from environmental or physiological stresses, to survive and to contribute to maintaining the proper function of tissues and organs. The formation of an actomyosin ring around the wound periphery is an important step in physically closing the cell wound. Here, we find that the Low-Density Lipoprotein (LDL) pathway, which is usually associated with plasma membrane homeostasis, is needed for optimal cell wound repair. In this context, the LDL pathway is required for robust actomyosin ring formation, revealing an unexpected role in regulating actin dynamics during cell wound repair.
Burugupally et al. (Fri,) studied this question.