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

Analysis of DNA sequences in forty-year-old paraffin-embedded thin-tissue sections: a bridge between molecular biology and classical histology.

Author(s): Shibata D, Martin WJ, Arnheim N

Publication: Cancer Res, 1988, Vol. 48, Page 4564-6

PubMed ID: 2840197 PubMed Review Paper? No

Purpose of Paper

The purpose of this paper was to evaluate whether DNA extracted from 40-year-old formalin-fixed, paraffin-embedded (FFPE) specimens is suitable for polymerase chain reaction (PCR) analysis.

Conclusion of Paper

The authors conclude that despite evidence of DNA degradation FFPE specimens archived as paraffin blocks and stored for 40 years may be analyzed by PCR when short amplicons are generated. Of note, successful PCR analysis of 38-40 year old FFPE specimens was gene-dependent, variability in amplicon abundance was observed, and amplicon size was not reported.

Studies

  1. Study Purpose

    The purpose of this study was to compare PCR amplification of the human papillomavirus (HPV) E6 gene and beta-globin gene fragments among DNA extracted from FFPE biopsy and autopsy specimens stored as paraffin blocks at ambient temperature from less than a year to 40 years.

    Summary of Findings:

    PCR amplification of beta-globin and HPV E6 gene fragments was successful using DNA extracted from FFPE specimens procured at biopsy or autopsy within a year of analysis. PCR amplification of a beta-globin fragment was successful for all archival specimens analyzed, although amplicon abundance displayed significant variability. Amplification of HPV E6 gene fragments was successful in 40% of archived specimens examined.

    Biospecimens
    Preservative Types
    • Formalin
    Diagnoses:
    • Autopsy
    • Neoplastic - Carcinoma
    Platform:
    AnalyteTechnology Platform
    DNA PCR
    DNA Dot blot or slot blot
    Pre-analytical Factors:
    ClassificationPre-analytical FactorValue(s)
    Storage Storage duration <1 yr
    38 yr
    40 yr
    Biospecimen Acquisition Method of tissue acquisition Autopsy
    Biopsy

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