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Title: | Archival May-Grunwald-Giemsa-Stained Bone Marrow Smears Are an Eligible Source for Molecular DNA Research | Authors: | OBEN, Bénedith COSEMANS, Charlotte ARIJS, Ingrid LINSEN, Loes Daniels, Annick DECLERCQ, Jeroen MAES, Brigitte VANHEES, Kimberly FROYEN, Guy RUMMENS, Jean-Luc |
Issue Date: | 2018 | Publisher: | MARY ANN LIEBERT, INC | Source: | BIOPRESERVATION AND BIOBANKING,17(4), p. 274-281 | Abstract: | 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-Grunwald-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. | Notes: | [Oben, Benedith; Cosemans, Charlotte; Arijs, Ingrid; Linsen, Loes; Daniels, Annick; Declercq, Jeroen; Maes, Brigitte; Froyen, Guy; Rummens, Jean-Luc] Jessa Hosp, Dept Expt Hematol, Stadsomvaart 11, B-3500 Hasselt, Belgium. [Oben, Benedith; Cosemans, Charlotte; Arijs, Ingrid; Linsen, Loes; Declercq, Jeroen; Maes, Brigitte; Vanhees, Kimberly; Froyen, Guy; Rummens, Jean-Luc] Hasselt Univ, Fac Med & Life Sci, Hasselt, Belgium. [Linsen, Loes; Vanhees, Kimberly; Rummens, Jean-Luc] Univ Biobank Limburg UBiLim, Hasselt, Belgium. [Linsen, Loes; Vanhees, Kimberly; Rummens, Jean-Luc] Clin Biobank Jessa Hosp, Hasselt, Belgium. [Maes, Brigitte; Froyen, Guy; Rummens, Jean-Luc] Jessa Hosp, Dept Clin Biol, Hasselt, Belgium. | Keywords: | quality control;DNA;RNA;long-term storage;bone marrow;biobank | Document URI: | http://hdl.handle.net/1942/27764 | ISSN: | 1947-5535 | e-ISSN: | 1947-5543 | DOI: | 10.1089/bio.2018.0062 | ISI #: | 000449617400001 | Category: | A1 | Type: | Journal Contribution |
Appears in Collections: | Research publications |
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