Validation of DNA methylation profiling in formalin-fixed paraffin-embedded samples using the Infinium HumanMethylation450 Microarray

A formalin-fixed paraffin-embedded (FFPE) sample usually yields highly degraded DNA, which limits the use of techniques requiring high-quality DNA, such as Infinium Methylation microarrays. To overcome this restriction, we have applied an FFPE restoration procedure consisting of DNA repair and ligat...

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Detalles Bibliográficos
Autores principales: Moran, Sebastián, Vizoso, Miguel, Martinez-Cardús, Anna, Gomez, Antonio, Matías-Guiu, Xavier, Chiavenna, Sebastián M, Fernandez, Andrés G, Esteller, Manel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Landes Bioscience 2014
Materias:
Brief Report
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4065180/
https://www.ncbi.nlm.nih.gov/pubmed/24732293
http://dx.doi.org/10.4161/epi.28790
Descripción
Sumario:A formalin-fixed paraffin-embedded (FFPE) sample usually yields highly degraded DNA, which limits the use of techniques requiring high-quality DNA, such as Infinium Methylation microarrays. To overcome this restriction, we have applied an FFPE restoration procedure consisting of DNA repair and ligation processes in a set of paired fresh-frozen (FF) and FFPE samples. We validated the FFPE results in comparison with matched FF samples, enabling us to use FFPE samples on the Infinium HumanMethylation450 Methylation array.

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