Assessment of Plasma Membrane Fatty Acid Composition and Fluidity Using Imaging Flow Cytometry

Natividad R. Fuentes, Michael L. Salinas, Xiaoli Wang, Yang Yi Fan, Robert S. Chapkin

Research output: Chapter in Book/Report/Conference proceedingChapter

4 Scopus citations

Abstract

Phospholipid fatty acid (FA) composition influences the biophysical properties of the plasma membrane and plays an important role in cellular signaling. Our previous work has demonstrated that plasma membrane fatty acid composition is an important determinant of oncogenic Ras signaling and that dietary (exogenous) modulation of membrane composition may underlie the chemoprotective benefits of long chain n-3 polyunsaturated fatty acids (PUFA). In this chapter, we describe in vitro methods to modulate membrane phospholipid fatty acid composition of cultured cells using fatty acids complexed to bovine serum albumin (BSA). Furthermore, we describe a method to quantify the biophysical properties of plasma membranes in live cells using Di-4-ANEPPDHQ (Di4) and image-based flow cytometry.

Original languageEnglish (US)
Title of host publicationMethods in Molecular Biology
PublisherHumana Press Inc.
Pages251-258
Number of pages8
DOIs
StatePublished - 2021
Externally publishedYes

Publication series

NameMethods in Molecular Biology
Volume2262
ISSN (Print)1064-3745
ISSN (Electronic)1940-6029

Keywords

  • DHA
  • Di-4-ANNEPDHQ
  • Imaging flow cytometry
  • Lipid rafts
  • Membrane order
  • n-3 PUFA

ASJC Scopus subject areas

  • Molecular Biology
  • Genetics

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