senescence

And B cells, when infected with EBV, become immortalized -- that is, the cells are no longer constrained by senescence, so they can continue to divide an indefinite number of times -- as "lymphoblastoid cell lines," or LCLs.

Developing a trusted relationship with an arborist can help with that, and with reading our trees’ health — identifying which ones are moving toward senescence, for example, and require a safe, environmentally sensitive transition plan.

One of p53’s roles is to orchestrate cellular senescence, telling stressed-out, unruly cells to stop dividing before they cause problems.

But, “When they persist, they cause havoc,” says Jesús Gil, a cellular senescence expert at Imperial College London who wasn’t connected to the new research.

If stem cells undergo senescence, for example, they can undermine tissues’ ability to make repairs.