Oenothera effect on senescent NDHF

Accumulation of senescent dermal fibroblasts drives skin aging, impairing the integrity of the extracellular matrix (ECM) and the function of neighbouring cells. One of strategies to manipulate cell senescence include the reactivation of proliferation. Here, a data independent mass spectrometry based proteomic approach has been used to evaluate the effect of an hydrophilic Oenothera biennis cell culture extract (ObHEx) on senescent human dermal fibroblasts. It has been shown that the extract was able to affect the levels of 18 proteins which cluster together and point to mitosis pathways. Indeed the treatment with ObHEx increase the expression of CDK1, replicative helicase complex (MCM2, MCM3, MCM4, MCM5, MCM6, MCM7), condensin I complex (NCAPD2, NCAPH, NCAPG, SMC4, SMC2) and other proteins related to kinetochore (KNTC1, NUF2, TRIP13). This strongly suggests that ObHEx could restore the proliferation of senescent fibroblasts.