PMID- 28274266 OWN - NLM STAT- MEDLINE DCOM- 20170317 LR - 20181113 IS - 1756-0500 (Electronic) IS - 1756-0500 (Linking) VI - 10 IP - 1 DP - 2017 Mar 9 TI - RNA isolation from precision-cut lung slices (PCLS) from different species. PG - 121 LID - 10.1186/s13104-017-2447-6 [doi] LID - 121 AB - BACKGROUND: Functional 3D organ models such as precision-cut lung slices (PCLS) have recently captured the attention of biomedical research. To enable wider implementation in research and development, these new biologically relevant organ models are being constantly refined. A very important issue is to improve the preparation of high-quality RNA (ribonucleic acid) from PCLS for drug discovery and development of new therapies. Gene expression analysis at different levels is used as an important experimental readout. Genome-wide analysis using microarrays is mostly applied for biomarker selection in disease models or in comprehensive toxicological studies. Specific biomarker testing by reverse transcriptase quantitative polymerase chain reaction (RTqPCR) is often used in efficacy studies. Both applications require high-quality RNA as starting material for the generation of reliable data. Additionally, a small number of slices should be sufficient for satisfactory RNA isolation to allow as many experimental conditions as possible to be covered with a given tissue sample. Unfortunately, the vast amount of agarose in PCLS impedes RNA extraction according to the standard procedures. RESULTS: We established an optimized protocol for RNA isolation from PCLS from humans, rats, mice, marmosets, and rhesus macaques based on the separation of lysis and precipitation steps and a magnetic-bead cleanup procedure. The resulting RNA is of high purity and possesses a high degree of integrity. There are no contaminations affecting RTqPCR efficiency or any enzymatic step in sample preparation for microarray analysis. CONCLUSIONS: In summary, we isolated RNA from PCLS from different species that is well suited for RTqPCR and for microarray analysis as downstream applications. FAU - Niehof, Monika AU - Niehof M AUID- ORCID: 0000-0001-5687-3052 AD - Division of Preclinical Pharmacology and In Vitro Toxicology, Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Excellence Cluster REBIRTH, Nikolai-Fuchs-Str. 1, 30625, Hannover, Germany. monika.niehof@item.fraunhofer.de. FAU - Hildebrandt, Tobias AU - Hildebrandt T AD - Immunology and Respiratory, Boehringer Ingelheim Pharma GmbH & Co. KG, Ingelheim am Rhein, Germany. FAU - Danov, Olga AU - Danov O AD - Division of Preclinical Pharmacology and In Vitro Toxicology, Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Excellence Cluster REBIRTH, Nikolai-Fuchs-Str. 1, 30625, Hannover, Germany. FAU - Arndt, Kirsten AU - Arndt K AD - Immunology and Respiratory, Boehringer Ingelheim Pharma GmbH & Co. KG, Ingelheim am Rhein, Germany. FAU - Koschmann, Jeannette AU - Koschmann J AD - geneXplain GmbH, 38302, Wolfenbuttel, Germany. FAU - Dahlmann, Franziska AU - Dahlmann F AD - Division of Preclinical Pharmacology and In Vitro Toxicology, Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Excellence Cluster REBIRTH, Nikolai-Fuchs-Str. 1, 30625, Hannover, Germany. AD - Pathology Unit, German Primate Center GmbH, Leibniz-Institute for Primate Research, Kellnerweg 4, 37077, Gottingen, Germany. FAU - Hansen, Tanja AU - Hansen T AD - Division of Preclinical Pharmacology and In Vitro Toxicology, Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Excellence Cluster REBIRTH, Nikolai-Fuchs-Str. 1, 30625, Hannover, Germany. FAU - Sewald, Katherina AU - Sewald K AD - Division of Preclinical Pharmacology and In Vitro Toxicology, Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Excellence Cluster REBIRTH, Nikolai-Fuchs-Str. 1, 30625, Hannover, Germany. LA - eng PT - Journal Article DEP - 20170309 PL - England TA - BMC Res Notes JT - BMC research notes JID - 101462768 RN - 63231-63-0 (RNA) SB - IM MH - Aged MH - Animals MH - Callithrix MH - Female MH - Humans MH - Lung/*chemistry/surgery MH - Macaca mulatta MH - Magnets MH - Male MH - Mice MH - Mice, Inbred BALB C MH - Microarray Analysis MH - Microtomy/instrumentation/*methods MH - Middle Aged MH - Oligonucleotide Array Sequence Analysis/*methods/statistics & numerical data MH - RNA/genetics/*isolation & purification MH - Rats MH - Rats, Wistar MH - Reverse Transcriptase Polymerase Chain Reaction MH - *Transcriptome PMC - PMC5343379 OTO - NOTNLM OT - Ex vivo OT - Lung material OT - Lung tissue OT - Microarray OT - Organotypic tissue OT - RNA extraction OT - RNA quality OT - RTqPCR EDAT- 2017/03/10 06:00 MHDA- 2017/03/18 06:00 PMCR- 2017/03/09 CRDT- 2017/03/10 06:00 PHST- 2016/08/02 00:00 [received] PHST- 2017/03/01 00:00 [accepted] PHST- 2017/03/10 06:00 [entrez] PHST- 2017/03/10 06:00 [pubmed] PHST- 2017/03/18 06:00 [medline] PHST- 2017/03/09 00:00 [pmc-release] AID - 10.1186/s13104-017-2447-6 [pii] AID - 2447 [pii] AID - 10.1186/s13104-017-2447-6 [doi] PST - epublish SO - BMC Res Notes. 2017 Mar 9;10(1):121. doi: 10.1186/s13104-017-2447-6.