Senescent cells drive ageing and the associated loss in health and lifespan. Whether this is mediated by systemic signalling remained unclear. Recently, Xu et al. [1] (Nat. Med. 2018;24:1246-1256) answered this question by injecting senescent cells into young mice and observing a long-lasting increase in frailty and mortality.
Keywords: SASP; ageing; cellular senescence; frailty; paracrine; systemic.
Copyright © 2018 Elsevier Ltd. All rights reserved.