At selected time points (0, 15, 30, 45, 60, 90, 105, and 120 min), the incubation was stopped by the addition of a threefold volume of ice-cold methanol containing the respective internal standards.

Dissected samples were diced finely in L15 complete media and transferred to a 2 mL eppendorf tube. After tissue settled ... fire-polished Pasteur pipettes. The dissociated cells were pelleted by ...