Programmable bacteria induce durable tumor regression and antitumor immunity (nature.com)

* and probably humans, but we couldn't get approval for that yet... maybe now that we're in Nature Medicine?

Yeah. People have been trying to do this forever and it's never been clinically relevant.

The human quest to make mice immortal continues

The "programmable bacteria" concept seems a bit more general than the typical treatments that work in a petri dish / mice before flopping on humans. At the very least it's more novel.