Laser capture microdissection for protein and NanoString RNA analysis

Area of Science:

• Cell Biology
• Molecular Biology
• Biotechnology

Background:

• Laser capture microdissection (LCM) enables precise isolation of specific cell populations from complex biological samples.
• It allows for microscopic visualization and targeted procurement of cells of interest from heterogeneous tissues or cell cultures.
• LCM methods include cell capture via polymer adhesion or cell ablation using lasers.

Purpose of the Study:

• To describe the principles and methods of laser capture microdissection (LCM).
• To highlight the applications of LCM in various downstream analyses.
• To detail the use of specific instruments for protein and RNA analysis.

Main Methods:

• LCM utilizes light microscopy for cell visualization.
• Two primary methods exist: capture (infrared laser, polymer adhesion) and cutting (ultraviolet laser, ablation).
• Instruments like Arcturus(XT) and mmi CellCut Plus® are employed for specific analyses.

Main Results:

• LCM facilitates the isolation of pure cell populations for downstream molecular analysis.
• The capture method uses infrared lasers to form a polymer-cell composite.
• The cutting method uses ultraviolet lasers to ablate unwanted cells or excise target areas.

Conclusions:

• LCM is a versatile technique for obtaining enriched cell populations.
• It supports a wide range of applications, including proteomics and transcriptomics.
• Specific LCM instruments are suited for protein and RNA analysis workflows.