Impact of different stabilization methods on RT-qPCR results using human lung tissue samples

Show simple item record Esteva-Socias, Margalida Gómez-Romano, Fernando Carrillo-Ávila, José Antonio Loreto Sánchez-Navarro, Alicia Villena, Cristina 2020-09-25T06:39:36Z 2020-09-25T06:39:36Z
dc.description.abstract [eng] Aiming to increase the reproducibility of biomedical research results, biobanks obtain human tissues of the highest quality and carry out different storage methods adapted to the needs of analytical technique to be performed by the biomedical researchers. However, there is much controversy and little data concerning the real impact of different stabilization methods on tissue quality, integrity and functionality of derived biomolecules. The influence of four stabilization methods [RNAlater (RNL), snap freezing (SF), snap freezing using Optimal Cutting Tissue compound (SF-OCT) and formalin-fixed paraffin-embedded (FFPE)] on RNA quality and integrity was evaluated in paired samples of lung tissue. RNA integrity was evaluated through PCR-endpoint assays amplifying six fragments of different length of the HPRT1 gene and RNA Integrity Number (RIN). To evaluate the difference of tissue functionality among the stabilization methods tested, RT-qPCRs were performed focusing on the differential expression of the HPRT1, SNRPD3 and Jun genes. RNA from the samples preserved with the RNL or SF-OCT method showed better integrity compared to SF and FFPE, measured by PCR-endpoint and RT-qPCR assays. However, only statistically significant differences were observed between the RNA from FFPE and other stabilization methods when gene expression of HPRT1, SNRPD3 and Jun housekeeping genes were determined by RT-qPCR. For the three mentioned genes, Cq and RIN values were highly correlated. The present work describes the fragility of SF samples, being critical the moment just before RNA extraction, although further experiments of tissue RNA are needed. Standardization pre-analytic workflow can lead to improved reproducibility between biomedical research studies. The present study demonstrated clear evidences about the impact of the stabilization method on RNA derived from lung human tissue samples.
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dc.relation.isformatof Reproducció del document publicat a:
dc.relation.ispartof Scientific Reports, 2020, vol. 10, num. 3579 (article), p. 1-11
dc.rights cc-by (c) Esteva-Socias, Margalida et al., 2020
dc.subject.classification 61 - Medicina
dc.subject.classification 00 - Ciència i coneixement. Investigació. Cultura. Humanitats
dc.subject.classification Ciència
dc.subject.other 61 - Medical sciences
dc.subject.other 00 - Prolegomena. Fundamentals of knowledge and culture. Propaedeutics
dc.subject.other Science
dc.title Impact of different stabilization methods on RT-qPCR results using human lung tissue samples
dc.type info:eu-repo/semantics/article
dc.type info:eu-repo/semantics/publishedVersion 2020-09-25T06:39:36Z
dc.rights.accessRights info:eu-repo/semantics/openAccess

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cc-by (c) Esteva-Socias, Margalida et al., 2020 Except where otherwise noted, this item's license is described as cc-by (c) Esteva-Socias, Margalida et al., 2020