Optimized RNA extraction from non-deparaffinized, laser-microdissected material.

Autor: Jonigk D; Medizinische Hochschule Hannover, Institute of Pathology, Hannover, Germany., Modde F, Bockmeyer CL, Becker JU, Lehmann U
Jazyk: angličtina
Zdroj: Methods in molecular biology (Clifton, N.J.) [Methods Mol Biol] 2011; Vol. 755, pp. 67-75.
DOI: 10.1007/978-1-61779-163-5_5
Abstrakt: mRNA extraction and subsequent RT-polymerase chain reaction (PCR)-based expression analysis from laser-microdissected material is by now a well-established and reproducible method. Most routinely stored tissue samples are preserved as formalin-fixed, paraffin-embedded materials. While this allows for a convenient storage and stable preservation of nucleic acids, deparaffinization before staining for laser microdissection may result in a significant loss of mRNA quality and consequently of PCR sensitivity. We describe a method of isolating anatomic compartments from non-deparaffinized, formalin-fixed, and paraffin-embedded tissues by laser-assisted microdissection which allows for a highly efficient mRNA retrieval.
Databáze: MEDLINE