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Updated: Jul 17, 2026
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A Decentralized (Ex Vivo) Murine Bladder Model with the Detrusor Muscle Removed for Direct Access to the Suburothelium during Bladder Filling
Published on: November 28, 2019
Proteomic analysis of human bladder tissue using SELDI approach following microdissection techniques
Rene C Krieg1, Nadine T Gaisa, Cloud P Paweletz
1Institute of Pathology, University of Hospital Aachen, RWTH, Germany
Methods in Molecular Biology (Clifton, N.J.)
|July 21, 2005
Summary
Microdissection of bladder tissue is essential before protein analysis to isolate specific cell types. Techniques like laser capture microdissection (LCM) yield sufficient material for sensitive methods such as surface-enhanced laser desorption ionization (SELDI) mass spectrometry.
Area of Science:
- Biochemistry
- Molecular Biology
- Oncology
Background:
- Complete biopsy lysis yields complex protein mixtures, hindering specific cell type analysis in proteomics.
- Accurate protein analysis necessitates isolating target cells from heterogeneous tissue samples.
Purpose of the Study:
- To highlight the importance of microdissection in proteomics.
- To evaluate microdissection techniques for bladder tissue in preparation for SELDI-TOF MS.
Main Methods:
- Manual microdissection and laser microdissection for bladder tissue specimen preparation.
- Laser pressure catapulting (LPC) and laser capture microdissection (LCM) for sample transfer.
- Surface-enhanced laser desorption ionization (SELDI) time-of-flight mass spectrometry (TOF MS) for protein analysis.
Main Results:
- Microdissection is mandatory to obtain pure cell populations for downstream proteomics.
- Both manual and laser-based methods are effective for isolating bladder tissue.
- The small sample sizes obtained via microdissection are adequate for SELDI-TOF MS.
Conclusions:
- Microdissection is a critical prerequisite for accurate proteomic analysis of bladder tissue.
- Laser capture microdissection (LCM) is a viable method for preparing samples for SELDI-TOF MS.
- Proteomic studies benefit from precise tissue isolation techniques.
