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A simple and fast method for tissue cryohomogenization enabling multifarious molecular extraction


von Ziegler, Lukas M; Saab, Bechara J; Mansuy, Isabelle M (2013). A simple and fast method for tissue cryohomogenization enabling multifarious molecular extraction. Journal of Neuroscience Methods, 216(2):137-141.

Abstract

Research in molecular biology often relies on parallel analysis of nucleic acids, protein and other molecules from a given tissue. When extracted from a single sample however, the quality and quantity of these products can be compromised. One solution is to obtain near-identical samples from multiple animals and dedicate each to a given molecular component, but this approach is not optimal from both an operational and ethical perspective. Thus, we refined the methods for cryohomogenization to allow efficient use of a single experimental sample so that it can easily be divided into fractions for extraction of different molecular components, immediately or after storage. Using western blot, nanodrop UV/V spectrometry, and a bioanalyzer, we show that cryohomogenized hippocampus samples provide high-quality RNA and protein without significant loss in abundance. The method may be particularly advantageous for parallel molecular extraction from brain structures with known hemispheric lateralization, such as the hippocampus, parietal cortex, suprachiasmatic nucleus, and amygdala.

Abstract

Research in molecular biology often relies on parallel analysis of nucleic acids, protein and other molecules from a given tissue. When extracted from a single sample however, the quality and quantity of these products can be compromised. One solution is to obtain near-identical samples from multiple animals and dedicate each to a given molecular component, but this approach is not optimal from both an operational and ethical perspective. Thus, we refined the methods for cryohomogenization to allow efficient use of a single experimental sample so that it can easily be divided into fractions for extraction of different molecular components, immediately or after storage. Using western blot, nanodrop UV/V spectrometry, and a bioanalyzer, we show that cryohomogenized hippocampus samples provide high-quality RNA and protein without significant loss in abundance. The method may be particularly advantageous for parallel molecular extraction from brain structures with known hemispheric lateralization, such as the hippocampus, parietal cortex, suprachiasmatic nucleus, and amygdala.

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2 citations in Web of Science®
1 citation in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Brain Research Institute
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Language:English
Date:27 March 2013
Deposited On:28 Nov 2013 11:45
Last Modified:05 Apr 2016 17:12
Publisher:Elsevier
ISSN:0165-0270
Publisher DOI:https://doi.org/10.1016/j.jneumeth.2013.03.005
PubMed ID:23541735

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