Functional Validation
Use functional delivery and perturbation gates to distinguish association from mechanism.
Do candidate EV cargo programs change recipient-cell state under controlled conditions?
Causal testing, cytosolic-delivery evidence, and engineered EV-mimics.
Association is a starting point
A progression-associated signal is not automatically causal. Manipulate introduces explicit functional gates: cargo uptake, cytosolic delivery, downstream pathway engagement, and recipient-cell response.
Engineered EV-mimics as experiments
Fusogenic EV-mimics offer a controllable way to test candidate cargo programs and their requirements for functional transfer. This is preclinical mechanism work—not a claim of a ready therapeutic.
Functional gates make the causal claim harder
A convincing result requires more than recipient-cell exposure. The experimental plan separates vesicle association from intracellular delivery, then tests whether the proposed regulatory machinery engages and whether the downstream state change reproduces across controlled conditions.