May 14, 2009

Optimizing staining protocols for laser microdissection of specific cell types from the testis including carcinoma in situ

PloS One
Si Brask SonneHenrik Leffers

Abstract

Microarray and RT-PCR based methods are important tools for analysis of gene expression; however, in tissues containing many different cells types, such as the testis, characterization of gene expression in specific cell types can be severely hampered by noise from other cells. The laser microdissection technology allows for enrichment of specific cell types. However, when the cells are not morphologically distinguishable, it is necessary to use a specific staining method for the target cells. In this study we have tested different fixatives, storage conditions for frozen sections and staining protocols, and present two staining protocols for frozen sections, one for fast and specific staining of fetal germ cells, testicular carcinoma in situ cells, and other cells with embryonic stem cell-like properties that express the alkaline phosphatase, and one for specific staining of lipid droplet-containing cells, which is useful for isolation of the androgen-producing Leydig cells. Both protocols retain a morphology that is compatible with laser microdissection and yield RNA of a quality suitable for PCR and microarray analysis.

  • References31
  • Citations13

References

Mentioned in this Paper

Pathologic Cytolysis
Study
Microarray Analysis
Testosterone Measurement
Benign Neoplasm of Testis
Ethanol
Fixed Specimen
Lipid Droplet
RNA Degradation
Oil red O

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