>>...breathing too much oxygen, which typically involves oxygen tanks, like while scuba diving...
Recreational diver here. SCUBA typically involves breathing compressed *air* not straight oxygen. Oxygen is sometimes used in 'rebreathers', which are used when there can't be bubbles at the surface (think spec ops people doing something unobserved). The Navy diving manuals (which I dug through many decades ago) indicate that straight O2 is quite toxic at depts of 1 atmosphere (about 32'). Confusingly, this means 2 atm of pressure, as it's already one at the surface. I'd sidebar into 'partial pressure', essentially how may molecules of gas are being presented, but that's getting way off topic.
That mentioned, these discoveries are quite interesting; they may shed some light on poorly understood cellular dynamics. Thanks for bringing it up!