Biological roles of sulfur dioxide and sulfite in the regulation of mitochondrial viscosity

Abstract

Herein, a NIR fluorescent probe has been developed for visualization of the roles of SO₂/SO₃²⁻ in mitochondrial viscosity. The results showed that SO₃²⁻ would increase mitochondrial viscosity and decrease mitochondrial membrane potential (MMP). However, increasing SO₂ stimulation decreased mitochondrial viscosity and caused inconspicuous MMP changes.