Randomized trial demonstrates the role of senescence in muscle repair in young mice, suggesting its regulatory importance.
Key Points
This research aims to explore the role of senescence in skeletal muscle repair mechanisms in young mice.
Young mice were divided into two groups: one received vehicle treatment and cardiotoxin injection, while the other received senolytics before and after cardiotoxin.
Dasatinib + Quercetin were used to eliminate senescent cells in the treatment group.
Functional measures, macrophage infiltration, satellite cell quantity, and fibrotic area were assessed at various time points post-treatment.
No significant differences in hindlimb grip strength and cross-sectional area between groups.
Macrophage infiltration was twice as high in the senolytic group compared to the vehicle group at D7.
Satellite cell quantity and fibrotic area were significantly increased in the senolytic group at D14 compared to the vehicle group.