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The polymerase chain reaction. Method and applications in dermatopathology
M Volkenandt1, G C Burmer, D Schadendorf
1Department of Dermatology, University of Munich, Germany.
The American Journal of Dermatopathology
|April 1, 1993
Summary
Polymerase chain reaction (PCR) amplifies DNA for molecular pathology. This technique enables detailed analysis of even degraded DNA from formalin-fixed tissues, aiding in cancer and microorganism detection.
Area of Science:
- Molecular Biology
- Pathology
- Biotechnology
Background:
- Polymerase chain reaction (PCR), developed in 1985, is a cornerstone technique in molecular biology.
- PCR enables exponential in vitro amplification of specific DNA sequences within hours.
- It has become an indispensable tool in molecular pathology for various diagnostic applications.
Purpose of the Study:
- To review the methodology of Polymerase Chain Reaction (PCR).
- To highlight the diverse applications of PCR in dermatopathology.
- To emphasize PCR's utility in analyzing challenging clinical specimens.
Main Methods:
- Utilizes cyclic temperature changes for precise DNA amplification.
- Employs total genomic DNA extracted from clinical specimens as a template.
- Adapts to low quantities and degraded DNA, including formalin-fixed, paraffin-embedded tissues.
Main Results:
- Successful amplification of target DNA sequences in a short timeframe.
- Detection of viral, microbial, and cancer-associated molecular markers in tissue sections.
- Demonstrates the feasibility of molecular analysis on archival formalin-fixed, paraffin-embedded samples.
Conclusions:
- PCR is a powerful and versatile tool revolutionizing molecular pathology.
- The technique allows for sensitive detection of pathogens and cancer markers in clinical samples.
- Formalin-fixed, paraffin-embedded tissues are amenable to detailed molecular investigation using PCR.