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Tandem Mass Spectrometry

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Applications of the Single-probe: Mass Spectrometry Imaging and Single Cell Analysis under Ambient Conditions

Applications of the Single-probe: Mass Spectrometry Imaging and Single Cell Analysis under Ambient Conditions

Published on: June 14, 2016

Single-cell imaging mass spectrometry.

Melissa K Passarelli¹, Andrew G Ewing

¹Kemivagen 10, Gothenburg, Sweden.

Current Opinion in Chemical Biology

|August 17, 2013

Summary

This summary is machine-generated.

Single-cell imaging mass spectrometry (IMS) advances with matrix-assisted laser desorption ionization (MALDI), offering new proteomic and lipid imaging possibilities. Researchers are exploring strategies to overcome sensitivity challenges for subcellular biomolecule analysis.

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Integrated Cell Manipulation Platform Coupled with the Single-probe for Mass Spectrometry Analysis of Drugs and Metabolites in Single Suspension Cells

Integrated Cell Manipulation Platform Coupled with the Single-probe for Mass Spectrometry Analysis of Drugs and Metabolites in Single Suspension Cells

Published on: June 21, 2019

Area of Science:

Biochemistry
Analytical Chemistry
Cell Biology

Background:

Single-cell imaging mass spectrometry (IMS) enables mapping of biomolecules at subcellular resolution.
Secondary ion mass spectrometry (SIMS) is the current primary method for single-cell IMS due to its high resolution and surface sensitivity.
Matrix-assisted laser desorption ionization (MALDI) is emerging as a viable alternative for single-cell IMS.

Purpose of the Study:

To evaluate matrix-assisted laser desorption ionization (MALDI) as a platform for single-cell IMS.
To explore the potential of MALDI for single-cell proteomic imaging and atmospheric pressure analyses.
To address the sensitivity limitations of MALDI for single-cell IMS.

Main Methods:

Estimation of protein and lipid availability within a single cell.
Discussion of strategies to enhance sensitivity for single-cell IMS.
Leveraging recent advancements in MALDI spatial resolution.

Main Results:

MALDI presents new opportunities for single-cell IMS, including proteomic imaging.
Sensitivity remains a key challenge for MALDI in single-cell applications.
The study estimates the abundance of biomolecules in single cells.

Conclusions:

MALDI is a promising technique for single-cell IMS, expanding its applications.
Further development is needed to improve MALDI sensitivity for comprehensive single-cell analysis.
Understanding biomolecule availability is crucial for optimizing single-cell IMS protocols.