Immune cells are like honeybees: they die to fight intrusion,
But when it comes to cancer cells, they suffer some confusion:
They do not recognize that cancer cells are bent on doing harm,
They accept them as benign – and don't sound the alarm.
But now some clever scientists have noticed a strange state:
Some immune cells, in a tumor do accumulate,
And what is more, in tumor cells they found a strange mutation
To which these special cells respond with animation.
And so, they grew a billion cells in their Petri dishes,
In the patient's blood injected them, hoping to unleash them,
And sure enough, the patient who most surely would have died,
To everyone's amazement, quite happily survived!
For this “adoptive therapy” great hope is now surmised,
That by using our immune cells, a way of treatment lies...