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  • Title: Detection of DNA mutations in acid formalin-fixed paraffin-embedded archival tumor specimens by polymerase chain reaction-single strand conformation polymorphism analysis.
    Author: Marchetti A, Merlo G, Buttitta F, Pellegrini S, Callahan R, Bistocchi M, Squartini F.
    Journal: Cancer Detect Prev; 1995; 19(3):278-81. PubMed ID: 7750117.
    Abstract:
    A single strand conformation polymorphism analysis on polymerase chain reaction (PCR)-amplified genomic DNA was used for the detection of DNA mutations in acid formalin-fixed, paraffin-embedded tissues. Fifty non-small cell lung cancers were screened for mutations in the exon 5 of the p53 tumor suppressor gene. Structural abnormalities of the gene were found in nine (18%) of the tumors examined. The results show that paraffin-embedded tissues fixed in unbuffered formalin can be a good source of DNA for a mobility shift analysis by neutral polyacrylamide gel electrophoresis. The described procedure allows retrospective genetic studies on paraffin blocks available in all pathology departments.
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