NIH, National Cancer Institute, Division of Cancer Treatment and Diagnosis (DCTD) NIH - National Institutes of Health National Cancer Institute DCTD - Division of Cancer Treatment and Diagnosis

An alternative protocol for DNA extraction from formalin fixed and paraffin wax embedded tissue.

Author(s): Coura R, Prolla J C, Meurer L, Ashton-Prolla P

Publication: J Clin Pathol, 2005, Vol. 58, Page 894

PubMed ID: 16049299 PubMed Review Paper? No

Purpose of Paper

To evaluate the efficiency of PCR amplification using DNA extracted from formalin fixed paraffin embedded (FFPE) tissue sections after xylene/ethanol deparaffinization and overnight rehydration.

Conclusion of Paper

Deparaffinization of archived paraffin embedded tissue in xylene/ethanol and overnight rehydration resulted in successful PCR amplification in samples fixed in tamponated, but not non tamponated, formalin.

Studies

  1. Study Purpose

    To evaluate the efficiency of PCR amplification using DNA extracted from formalin fixed paraffin embedded (FFPE) tissue sections after xylene/ethanol deparaffinization and overnight rehydration.

    Summary of Findings:

    PCR amplification of microsatellite markers (BAT-25, BAT-26, D2S123, D17S250) was successful in 100% of the paraffin embedded samples fixed in tamponated formalin. PCR amplification was unsuccessful, resulting in a smear, in all samples fixed in non tamponated formalin.

    Biospecimens
    Preservative Types
    • Formalin
    Diagnoses:
    • Neoplastic - Carcinoma
    Platform:
    AnalyteTechnology Platform
    DNA PCR
    Pre-analytical Factors:
    ClassificationPre-analytical FactorValue(s)
    Biospecimen Preservation Type of fixation/preservation Tamponated formalin
    Nontamponated formalin

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