PE-22-28
Mood & Stressaka Spadin analog · PE 22-28 · TREK-1 inhibitor peptide
Overview
PE-22-28 is a shortened analog derived from the spadin program, developed around inhibition of the TREK-1 potassium channel — a target implicated in depression biology. The retrievable indexed literature is preclinical rather than clinical.
Mechanism
The core mechanism is TREK-1 inhibition. Published spadin-analog work reported that PE-22-28 and related analogs showed improved TREK-1 inhibitory potency and antidepressant-like effects in behavioral models, with interest in rapid onset and neurogenic mechanisms. This makes PE-22-28 scientifically interesting in mood-disorder research, especially as a non-monoaminergic approach.