Article (Scientific journals)
fISHing with immunohistochemistry for housekeeping gene changes in Alzheimer's disease using an automated quantitative analysis workflow.
Highet, Blake; Vikas Anekal, Praju; Ryan, Brigid et al.
2021In Journal of Neurochemistry, 157 (4), p. 1270-1283
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Keywords :
Alzheimer's Disease; automated analysis workflow; housekeeping genes; immunohistochemistry; in situ hybridization; ubiquitin C (UBC); RNA, Messenger; Ubiquitin C; cyclophilin B; DNA-Directed RNA Polymerases; POLR2A RNA polymerase, human; Cyclophilins; Aged; Aged, 80 and over; Cyclophilins/analysis; DNA-Directed RNA Polymerases/analysis; Female; Gene Expression Profiling/methods; High-Throughput Screening Assays/methods; Humans; Immunohistochemistry/methods; In Situ Hybridization, Fluorescence/methods; Male; Middle Aged; RNA, Messenger/analysis; Transcriptome; Ubiquitin C/analysis; Workflow; Alzheimer Disease; Genes, Essential; Gene Expression Profiling; High-Throughput Screening Assays; In Situ Hybridization, Fluorescence; Biochemistry; Cellular and Molecular Neuroscience
Abstract :
[en] In situ hybridization (ISH) is a powerful tool that can be used to localize mRNA expression in tissue samples. Combining ISH with immunohistochemistry (IHC) to determine cell type provides cellular context of mRNA expression, which cannot be achieved with gene microarray or polymerase chain reaction. To study mRNA and protein expression on the same section we investigated the use of RNAscope® ISH in combination with fluorescent IHC on paraffin-embedded human brain tissue. We first developed a high-throughput, automated image analysis workflow for quantifying RNA puncta across the total cell population and within neurons identified by NeuN+ immunoreactivity. We then applied this automated analysis to tissue microarray (TMA) sections of middle temporal gyrus tissue (MTG) from neurologically normal and Alzheimer's Disease (AD) cases to determine the suitability of three commonly used housekeeping genes: ubiquitin C (UBC), peptidyl-prolyl cis-trans isomerase B (PPIB) and DNA-directed RNA polymerase II subunit RPB1 (POLR2A). Overall, we saw a significant decrease in total and neuronal UBC expression in AD cases compared to normal cases. Total expression results were validated with RT-qPCR using fresh frozen tissue from 5 normal and 5 AD cases. We conclude that this technique combined with our novel automated analysis pipeline provides a suitable platform to study changes in gene expression in diseased human brain tissue with cellular and anatomical context. Furthermore, our results suggest that UBC is not a suitable housekeeping gene in the study of post-mortem AD brain tissue.
Disciplines :
Neurology
Author, co-author :
Highet, Blake ;  Department of Anatomy and Medical Imaging, Faculty of Medical and Health Science, University of Auckland, Auckland, New Zealand ; Centre for Brain Research, Faculty of Medical and Health Science, University of Auckland, Auckland, New Zealand
Vikas Anekal, Praju;  Biomedical Imaging Research Unit, Faculty of Medical and Health Science, University of Auckland, Auckland, New Zealand
Ryan, Brigid;  Department of Anatomy and Medical Imaging, Faculty of Medical and Health Science, University of Auckland, Auckland, New Zealand ; Centre for Brain Research, Faculty of Medical and Health Science, University of Auckland, Auckland, New Zealand
Murray, Helen;  Department of Anatomy and Medical Imaging, Faculty of Medical and Health Science, University of Auckland, Auckland, New Zealand ; Centre for Brain Research, Faculty of Medical and Health Science, University of Auckland, Auckland, New Zealand
Coppieters't Wallant, Natacha ;  Université de Liège - ULiège > GIGA > GIGA Neurosciences - Nervous system disorders and therapy
Victor Dieriks, Birger ;  Department of Anatomy and Medical Imaging, Faculty of Medical and Health Science, University of Auckland, Auckland, New Zealand ; Centre for Brain Research, Faculty of Medical and Health Science, University of Auckland, Auckland, New Zealand
Singh-Bains, Malvindar K;  Department of Anatomy and Medical Imaging, Faculty of Medical and Health Science, University of Auckland, Auckland, New Zealand ; Centre for Brain Research, Faculty of Medical and Health Science, University of Auckland, Auckland, New Zealand
Mehrabi, Nasim F;  Centre for Brain Research, Faculty of Medical and Health Science, University of Auckland, Auckland, New Zealand ; Department of Pharmacology, Faculty of Medical and Health Science, University of Auckland, Auckland, New Zealand
Faull, Richard L M;  Department of Anatomy and Medical Imaging, Faculty of Medical and Health Science, University of Auckland, Auckland, New Zealand ; Centre for Brain Research, Faculty of Medical and Health Science, University of Auckland, Auckland, New Zealand
Dragunow, Michael;  Centre for Brain Research, Faculty of Medical and Health Science, University of Auckland, Auckland, New Zealand ; Department of Pharmacology, Faculty of Medical and Health Science, University of Auckland, Auckland, New Zealand
Curtis, Maurice A ;  Department of Anatomy and Medical Imaging, Faculty of Medical and Health Science, University of Auckland, Auckland, New Zealand ; Centre for Brain Research, Faculty of Medical and Health Science, University of Auckland, Auckland, New Zealand
Language :
English
Title :
fISHing with immunohistochemistry for housekeeping gene changes in Alzheimer's disease using an automated quantitative analysis workflow.
Publication date :
2021
Journal title :
Journal of Neurochemistry
ISSN :
0022-3042
eISSN :
1471-4159
Publisher :
Blackwell Publishing Ltd, England
Volume :
157
Issue :
4
Pages :
1270-1283
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
Brain Research New Zealand
Neurological Foundation of New Zealand
Health Research Council of New Zealand
Funding text :
We are very grateful to Brain Research New Zealand (grant number: 3715777) and the Health Research Council of New Zealand who financially supported this research. Blake Highet is supported by a Brain Research New Zealand Doctoral scholarship. Brigid Ryan is supported by the Auckland Medical Research Foundation. Helen Murray is a Health Education Trust Postdoctoral Research Fellow. Natacha Coppieters is funded by the Neurological Foundation. Birger Victor Dieriks is funded by the Michael J Fox Foundation and Neuro Research Charitable Trust. Malvindar K. Singh‐Bains is funded by the Leo Nilon Huntington's Disease Fellowship. We are grateful to the Neurological Foundation for their support of the Brain Bank. POLR2A PPIB UBCWe are very grateful to Brain Research New Zealand (grant number: 3715777) and the Health Research Council of New Zealand who financially supported this research. Blake Highet is supported by a Brain Research New Zealand Doctoral scholarship. Brigid Ryan is supported by the Auckland Medical Research Foundation. Helen Murray is a Health Education Trust Postdoctoral Research Fellow. Natacha Coppieters is funded by the Neurological Foundation. Birger Victor Dieriks is funded by the Michael J Fox Foundation and Neuro Research Charitable Trust. Malvindar K. Singh-Bains is funded by the Leo Nilon Huntington's Disease Fellowship. We are grateful to the Neurological Foundation for their support of the Brain Bank. The authors thank the Neurological Foundation Brain Bank manager, Marika Eszes as well as Kristina Hubbard and Dr Remai Parker for their technical support in working with human brain tissue.
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