Streptolysin O can be used to deliver fluorescent probes into living cells. However it is not very clear to me whether immune cells, T cells specifically can also be permeabilized with Streptolysin O.
Hi, might be difficult. Pore size by SLO is reported to 25..30nm and protein size able to pass through is ~150kD. I'd give it a try, but would not be surprised if it's not very efficient.
Article Assembly of Streptolysin O Pores Assessed by Quartz Crystal ...