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A Label-free Technique for the Spatio-temporal Imaging of Single Cell Secretions
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Optical Sensing Strategies for Probing Single-Cell Secretion.

Qingmei Zhong1, Xuedong Huang1, Rongrong Zhang1

  • 1Department of Chemistry, Shanghai Stomatological Hospital, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, China.

ACS Sensors
|June 16, 2022
PubMed
Summary

Single-cell analysis revolutionizes understanding of cell secretion by enabling real-time, high-resolution measurements of individual cell behavior and secretions, overcoming limitations of population-based studies.

Keywords:
Single cellbioanalysisfluorescenceoptical sensingsecretionsurface plasmon resonancesurface-enhanced Raman scattering

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Area of Science:

  • Cell Biology
  • Biotechnology
  • Analytical Chemistry

Background:

  • Cell secretion is vital for cell communication, migration, proliferation, and differentiation.
  • Traditional population-based methods obscure crucial cell-to-cell variations in secretion.
  • Single-cell analysis offers high spatiotemporal resolution for studying secretion dynamics.

Purpose of the Study:

  • To highlight the transformative potential of single-cell protocols in analyzing cell secretion.
  • To review advancements in real-time, in situ single-cell secretion measurement techniques.
  • To discuss challenges and future opportunities in single-cell secretome analysis.

Main Methods:

  • Focus on optical sensing strategies including fluorescence, surface plasmon resonance, and surface-enhanced Raman scattering.
  • Review of single-cell bioanalytical techniques for monitoring ions, metabolites, proteins, and vesicles.
  • Emphasis on high-throughput, high-resolution single-cell sensing platforms.

Main Results:

  • Single-cell techniques enable precise, real-time monitoring of diverse secretions from individual cells.
  • Advancements in optical sensing provide unprecedented insights into secretion release dynamics.
  • Highlighted platforms demonstrate accuracy and high-throughput capabilities for secretome analysis.

Conclusions:

  • Single-cell analysis is revolutionizing the study of fundamental cell biology and secretion processes.
  • Overcoming current challenges will lead to a more comprehensive understanding of secretion biology.
  • Future breakthroughs in secretome analysis are anticipated with further development of single-cell sensing approaches.