Fluorescence Colocalization Analysis of Cellular Distribution of MOR-1

Methods Mol Biol. 2021:2201:27-34. doi: 10.1007/978-1-0716-0884-5_3.

Abstract

The interaction between neurons and glia is pivotal for the development of chronic opioid tolerance. One of the most important mechanisms of cell-to-cell interaction is the Notch signaling pathway. In this chapter we propose a double-immunofluorescence method to observe and quantify the colocalization of Notch-1 and mu-opioid receptor (MOR-1), using both neuronal and astrocyte markers.

Keywords: Colocalization; Immunofluorescence; Morphine; Mu-opioid receptor; Notch signaling; Tolerance.

MeSH terms

  • Analgesics, Opioid / metabolism
  • Animals
  • Drug Tolerance
  • Fluorescence
  • Fluorescent Antibody Technique, Direct / methods*
  • Humans
  • Neurons / metabolism
  • Receptor, Notch1 / metabolism*
  • Receptors, Notch / metabolism
  • Receptors, Opioid, mu / metabolism*
  • Signal Transduction / drug effects

Substances

  • Analgesics, Opioid
  • OPRM1 protein, human
  • Receptor, Notch1
  • Receptors, Notch
  • Receptors, Opioid, mu