No, but basically the mRNA stuff trains the body to recognize a certain protein which could be a really useful tool. All types of cells/microscopic life express all sorts of unique molecules on the outsides of them. I think cancer cells are a little fucky in what they express on their exterior cell wall, so this is probably what they could teach the immune system to target, the thing the sick cells are expressing and not the healthy (sort of like the spikes on covid). Your body plays cat and mouse with cancer cells, the cancer tries to evade the killer T-cells, but if you could give the T-cells a leg up, point them at the right targets, they they could do serious damage to cancer. This all varies depending on the type of cancer etc. Honestly if this stuff turns out to be ok (after it's studied properly and not rushed) it could mean a lot for cancer patients. It's like a targeting laser for whatever the makers of the mRNA want to target, granted the body is very complex, and there is more to it than this, but this is just my non-expert understanding.