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

DNA and RNA isolated from tissues processed by microwave-accelerated apparatus MFX-800-3 are suitable for subsequent PCR and Q-RT-PCR amplification.

Author(s): Bödör C, Schmidt O, Csernus B, Rajnai H, Szende B

Publication: Pathol Oncol Res, 2007, Vol. 13, Page 149-52

PubMed ID: 17607377 PubMed Review Paper? No

Purpose of Paper

The purpose of this paper was to compare immersion versus microwave-accelerated formalin-fixed specimens with respect to PCR and real-time PCR amplification capabilities.

Conclusion of Paper

Amplification of beta-globin DNA was possible from all specimens, but 1 gallbladder specimen showed less amplification when fixation was by immersion rather than microwave. No effect of fixation method was found on real-time PCR amplification of ABL mRNA.

Studies

  1. Study Purpose

    The purpose of this study was to determine the effects of formalin fixation by immersion using the TCP 15 tissue processor versus by microwave in the MFX-800-3 on PCR and real-time PCR amplification.

    Summary of Findings:

    Amplification of beta-globin DNA was possible from all four specimens, but one gallbladder specimen showed less amplification when fixation was by immersion rather than microwave. No effect of fixation method was found on real-time PCR amplification of ABL mRNA.

    Biospecimens
    Preservative Types
    • Formalin
    Diagnoses:
    • Neoplastic - Carcinoma
    • Normal
    • Other diagnoses
    Platform:
    AnalyteTechnology Platform
    RNA Real-time qRT-PCR
    DNA PCR
    Pre-analytical Factors:
    ClassificationPre-analytical FactorValue(s)
    Biospecimen Preservation Method of fixative delivery Immersion
    Microwaved
    PCR Specific Targeted nucleic acid Beta-globin
    Real-time qRT-PCR Specific Targeted nucleic acid ABL
    Biospecimen Acquisition Biospecimen location Colon
    Gallbladder
    Liver
    Preaquisition Diagnosis/ patient condition Chronic inflammation

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