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Cellular senescence is one of the root causes of aging. Nonetheless, the study of cellular senescence used to be a comparative backwater in aging research, and as a topic it was mostly of interest to cancer researchers seeking ways to better shut down the replication of cancerous cells. But there is nothing quite like having a company raise $300 million in venture funding for rejuvenation therapies based on manipulation and destruction of senescent cells to bring a little excitement to this part of fundamental aging research. Who knows how many useful, exploitable mechanisms are yet to be found in senescent cells and the signals they generate? Each one is a potential lottery ticket for the discovering institution and research group.

Cellular senescencea company raise $300 million in venture funding

This was in fact always the case, and for decades a compelling set of evidence has strongly suggested that the accumulation of senescent cells is a significant contribution to aging. Yet next to no-one was funding or working on it seriously until the high-profile proof of concept study in mice reported in 2011, in which senescent cells were eliminated and health and life span improved as a consequence. After that point, the avalanche

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