Membrane polarization in non-neuronal cells as a potential mechanism of metabolic disruption by depolarizing insecticides

Food Chem Toxicol. 2022 Feb:160:112804. doi: 10.1016/j.fct.2021.112804. Epub 2022 Jan 4.

Abstract

A significant rise in the incidence of obesity and type 2 diabetes has occurred worldwide in the last two decades. Concurrently, a growing body of evidence suggests a connection between exposure to environmental pollutants, particularly insecticides, and the development of obesity and type 2 diabetes. This review summarizes key evidence of (1) the presence of different types of neuronal receptors - target sites for neurotoxic insecticides - in non-neuronal cells, (2) the activation of these receptors in non-neuronal cells by membrane-depolarizing insecticides, and (3) changes in metabolic functions, including lipid and glucose accumulation, associated with changes in membrane potential. Based on these findings, we propose that changes in membrane potential (Vmem) by certain insecticides serve as a novel regulator of lipid and glucose metabolism in non-excitable cells associated with obesity and type 2 diabetes.

Keywords: Bioelectric regulation; Membrane potential; Obesity; Type 2 diabetes.

Publication types

  • Review

MeSH terms

  • Animals
  • Cell Membrane / drug effects*
  • Cell Membrane / genetics
  • Cell Membrane / metabolism
  • Diabetes Mellitus, Type 2 / epidemiology
  • Diabetes Mellitus, Type 2 / etiology*
  • Diabetes Mellitus, Type 2 / genetics
  • Diabetes Mellitus, Type 2 / metabolism
  • Environmental Exposure / adverse effects
  • Environmental Pollutants / toxicity*
  • Humans
  • Insecticides / toxicity*
  • Membrane Potentials / drug effects
  • Obesity / epidemiology
  • Obesity / etiology*
  • Obesity / genetics
  • Obesity / metabolism

Substances

  • Environmental Pollutants
  • Insecticides