Longevity & AgingSenolytic Drug ABT-263 Clears Zombie Cells and Dramatically Speeds Wound Healing in Aged Skin
Scientists at Boston University tested ABT-263, a drug that eliminates senescent 'zombie' cells, applied directly to aged mouse skin. After five days of topical treatment, aged mice healed wounds significantly faster than untreated controls. By day 24, 80% of treated mice had fully healed wounds versus 56% of untreated mice. The drug temporarily boosted inflammation in a way that appeared to prime healing pathways, activating genes tied to collagen production, blood vessel growth, and tissue remodeling. Importantly, the drug had little effect in young mice, suggesting it works best where senescent cell buildup is greatest. Researchers believe topical delivery could minimize the systemic side effects associated with oral senolytic drugs, making it a targeted option for surgical recovery or chronic wound care in older adults.
