Yama I. N., Garba M., Britton-Davidian J., Thiberville S. D., Dobigny Gauthier, Gould E. A., de Lamballerie Xavier, Charrel R. N. (2013). Comparative analysis of rodent tissue preservation methods and nucleic acid extraction techniques for virus screening purposes. Journal of Virological Methods, 189 (2), p. 311-316. ISSN 0166-0934.
Titre du document
Comparative analysis of rodent tissue preservation methods and nucleic acid extraction techniques for virus screening purposes
Yama I. N., Garba M., Britton-Davidian J., Thiberville S. D., Dobigny Gauthier, Gould E. A., de Lamballerie Xavier, Charrel R. N.
Source
Journal of Virological Methods, 2013,
189 (2), p. 311-316 ISSN 0166-0934
The polymerase chain reaction (PCR) has become an essential method for the detection of viruses in tissue specimens. However, it is well known that the presence of PCR inhibitors in tissue samples may cause false-negative results. Hence the identification of PCR inhibitors and evaluation and optimization of nucleic acid extraction and preservation methods is of prime concern in virus discovery programs dealing with animal tissues. Accordingly, to monitor and remove inhibitors we have performed comparative analyses of two commonly used tissue storage methods and five RNA purification techniques using a variety of animal tissues, containing quantified levels of added MS2 bacteriophages as the indicator of inhibition. The results showed (i) no significant difference between the two methods of sample preservation, viz. direct storage at -80 degrees C or 4 degrees C in RNAlater, (ii) lung rodent tissues contained lower levels of inhibitor than liver, kidney and spleen, (iii) RNA extraction using the EZ1 + PK RNA kit was the most effective procedure for removal of RT-PCR inhibitors.
Plan de classement
Sciences fondamentales / Techniques d'analyse et de recherche [020]
;
Entomologie médicale / Parasitologie / Virologie [052]
;
Biotechnologies [084]