Effects of post-mortem and physical degradation on RNA integrity and quality

Kód výsledku v IS VaVaI

RIV/86652036:_____/15:00523050 - isvavai.cz

Nalezeny alternativní kódy

RIV/00216208:11310/15:10362452

Výsledek na webu

https://www.sciencedirect.com/science/article/pii/S2214753515300048?via%3Dihub

DOI - Digital Object Identifier

10.1016/j.bdq.2015.08.002

Jazyk výsledku

angličtina

Název v původním jazyce

Effects of post-mortem and physical degradation on RNA integrity and quality

Popis výsledku v původním jazyce

The precision and reliability of quantitative nucleic acid analysis depends on the quality of the sample analyzed and the integrity of the nucleic acids. The integrity of RNA is currently primarily assessed by the analysis of ribosomal RNA, which is the by far dominant species. The extrapolation of these results to mRNAs and microRNAs, which are structurally quite different, is questionable. Here we show that ribosomal and some nucleolar and mitochondrial RNAs, are highly resistant to naturally occurring post-mortem degradation, while mRNAs, although showing substantial internal variability, are generally much more prone to nucleolytic degradation. In contrast, all types of RNA show the same sensitivity to heat. Using qPCR assays targeting different regions of mRNA molecules, we find no support for 5' or 3' preferentiality upon post-mortem degradation.

Název v anglickém jazyce

Effects of post-mortem and physical degradation on RNA integrity and quality

Popis výsledku anglicky

The precision and reliability of quantitative nucleic acid analysis depends on the quality of the sample analyzed and the integrity of the nucleic acids. The integrity of RNA is currently primarily assessed by the analysis of ribosomal RNA, which is the by far dominant species. The extrapolation of these results to mRNAs and microRNAs, which are structurally quite different, is questionable. Here we show that ribosomal and some nucleolar and mitochondrial RNAs, are highly resistant to naturally occurring post-mortem degradation, while mRNAs, although showing substantial internal variability, are generally much more prone to nucleolytic degradation. In contrast, all types of RNA show the same sensitivity to heat. Using qPCR assays targeting different regions of mRNA molecules, we find no support for 5' or 3' preferentiality upon post-mortem degradation.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

10608 - Biochemistry and molecular biology

Projekt

ED1.1.00/02.0109: Biotechnologické a biomedicínské centrum Akademie věd a Univerzity Karlovy

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Biomolecular Detection and Quantification

ISSN

2214-7535

e-ISSN

—

Svazek periodika

5

Číslo periodika v rámci svazku

September 2015

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

3-9

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-84943627995