Label-free tracking of intracellular molecular crowding with cell-cycle progression using Raman microscopy

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Abstract

Intracellular environments are highly crowded with biomolecules, called molecular crowding, and the structures and functions of biomolecules in cells are influenced by molecular crowding. In this study, we tracked the changes in intracellular crowding environments during cell cycle progression using Raman imaging. The intensity ratio between the C–H and O–H stretching bands allows us to quantitatively monitor the crowding environments. The results show that the nucleus is more crowded in the M phase than in other phases; however, the cytoplasm is maintained. The changes in molecular crowding in the nucleus can affect the stability and regulation of biomolecules.

Original languageEnglish
Article number138843
JournalChemical Physics Letters
Volume779
DOIs
Publication statusPublished - 2021 Sep 16

Keywords

  • Cell cycle
  • Intracellular environment
  • Molecular crowding
  • Raman microscopy
  • Water

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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