Related Experiment Videos
[Pathology--on a molecular level (determination of nucleic acids from fixed embedded samples)]
1I. Pathologiai és Kísérleti Rákkutató Intézet, Semmelweis Orvostudományi Egyetem, Budapest.
Orvosi Hetilap
|July 12, 1992
Summary
Molecular biological techniques allow retrospective analysis of nucleic acids from archival tissues. Polymerase chain reaction (PCR) amplifies DNA from even fragmented samples, enabling gene alteration studies.
Area of Science:
- Molecular biology
- Pathology
- Genetics
Context:
- Pathological archives contain valuable biological material.
- Fixed and paraffin-embedded tissues are a source of nucleic acids, particularly DNA.
- DNA quality is influenced by tissue fixation methods.
Purpose:
- To explore the utility of molecular biological techniques for retrospective analysis of pathological archives.
- To assess the suitability of nucleic acids from archival samples for molecular studies.
- To highlight the role of polymerase chain reaction (PCR) in analyzing fragmented DNA.
Summary:
- Molecular biological methods can be applied to nucleic acids extracted from fixed and paraffin-embedded pathological specimens.
- High molecular weight DNA is suitable for techniques like Southern hybridization.
- Fragmented DNA can be analyzed using polymerase chain reaction (PCR), which allows amplification of specific sequences from limited material.
Impact:
- Enables retrospective correlation of morphology, phenotypic expression, and gene alterations.
- Expands the scope of research using historical pathological samples.
- Facilitates genetic analysis and discovery from archival collections.