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Archival May-Grünwald-Giemsa-Stained Bone Marrow Smears Are an Eligible Source for Molecular DNA Research.
Oben, Bénedith; Cosemans, Charlotte; Arijs, Ingrid; Linsen, Loes; Daniëls, Annick; Declercq, Jeroen; Maes, Brigitte; Vanhees, Kimberly; Froyen, Guy; Rummens, Jean-Luc.
Afiliación
  • Oben B; 1Department of Experimental Hematology, Jessa Hospital, Hasselt, Belgium.
  • Cosemans C; 2Faculty of Medicine and Life Sciences, Hasselt University, Hasselt, Belgium.
  • Arijs I; 1Department of Experimental Hematology, Jessa Hospital, Hasselt, Belgium.
  • Linsen L; 2Faculty of Medicine and Life Sciences, Hasselt University, Hasselt, Belgium.
  • Daniëls A; 1Department of Experimental Hematology, Jessa Hospital, Hasselt, Belgium.
  • Declercq J; 2Faculty of Medicine and Life Sciences, Hasselt University, Hasselt, Belgium.
  • Maes B; 1Department of Experimental Hematology, Jessa Hospital, Hasselt, Belgium.
  • Vanhees K; 2Faculty of Medicine and Life Sciences, Hasselt University, Hasselt, Belgium.
  • Froyen G; 3University Biobank Limburg (UBiLim) and Clinical Biobank Jessa Hospital, Hasselt, Belgium.
  • Rummens JL; 1Department of Experimental Hematology, Jessa Hospital, Hasselt, Belgium.
Biopreserv Biobank ; 17(4): 274-281, 2019 Aug.
Article en En | MEDLINE | ID: mdl-30412415
Biobanking is increasingly important in studying complex heterogeneous diseases. Therefore, it is essential to ensure the sample quality after long-term storage for reliable downstream analyses. The Clinical Biobank of the Jessa Hospital and the University Biobank Limburg (UBiLim) hold a continuously growing collection of hematological samples, including May-Grünwald-Giemsa (MGG)- and Perls' Prussian Blue (PPB)-stained bone marrow (BM) smears, stored at room temperature (RT) for up to 20 years. In this study, we investigated the effect of short- and long-term storage on the quality of DNA and RNA extracted from these BM smears to assess their fitness-for-purpose in downstream molecular applications, including agarose gel electrophoresis, bio-analyzer analysis, quantitative polymerase chain reaction (qPCR), and targeted next-generation sequencing (NGS). The RNA quality was very low for all samples, independent of storage time or staining method. The DNA from PPB-stained BM smears was already degraded after 1 year of storage and correspondingly could not be used for reliable downstream molecular analysis. In contrast, DNA extracted from MGG-stained BM smears stored for up to 10 years was able to generate high-quality data in qPCR and targeted NGS analyses. Longer storage periods (>15 years) of these samples revealed a high degree of degradation and a significant amount of DNA transitions and transversions. In conclusion, the DNA extracted from archival MGG-stained BM smears with a storage time up to at least 10 years was qualitatively good and fit for downstream analysis, including targeted NGS. This indicates that these samples are an eligible source for molecular DNA research and for studying complex diseases.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Médula Ósea / Bancos de Muestras Biológicas / Eosina Amarillenta-(YS) / Azul de Metileno Límite: Humans Idioma: En Revista: Biopreserv Biobank Año: 2019 Tipo del documento: Article País de afiliación: Bélgica Pais de publicación: Estados Unidos
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Médula Ósea / Bancos de Muestras Biológicas / Eosina Amarillenta-(YS) / Azul de Metileno Límite: Humans Idioma: En Revista: Biopreserv Biobank Año: 2019 Tipo del documento: Article País de afiliación: Bélgica Pais de publicación: Estados Unidos