THY1 and thromboangiitis obliterans: Thy-1<sup>+</sup> OFs were transfected with miR-144-3p mimics/inhibitors to evaluate its regulation of inflammation, fibrosis, and proliferation.<h4>Results</h4>Pla-Exos derived from active TAO patients (Pla-Exos<sup>TAO-A</sup>) induced stronger production of inflammatory cytokines and hyaluronic acid (HA) in Thy-1<sup>+</sup> OFs while inhibiting their proliferation.