Evidence map›Paper›PMID 33972803›Full record

ArticleNature protocols2021

Extraction of nuclei from archived postmortem tissues for single-nucleus sequencing applications.

Malosree Maitra, Corina Nagy, Anjali Chawla, Yu Chang Wang, Camila Nascimento, Matthew Suderman, Jean-François Théroux, Naguib Mechawar, Jiannis Ragoussis, Gustavo Turecki

Abstract readEvaluation Study
PubMed Publisher
In one paragraph

Article in Nature protocols, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 2 pooled it
2.1field-weighted citation impact, top 12% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

26 citing papers in PubMed, 2 syntheses or guidelines pooled it, 41 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
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  5. Cell-type-resolved transcriptomic landscape of human focal cortical dysplasia.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  8. From inflammation to remodelling: A novel BASP1Journal of advanced research · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 4 institutions in 3 countries.

Malosree Maitra *McGill Group for Suicide Studies, Douglas Mental Health University Institute, Montreal, Canada.
Corina Nagy *McGill Group for Suicide Studies, Douglas Mental Health University Institute, Montreal, Canada.
Anjali ChawlaMcGill Group for Suicide Studies, Douglas Mental Health University Institute, Montreal, Canada.
Yu Chang WangMcGill University and Genome Quebec Innovation Centre, Department of Human Genetics, McGill University, Montreal, Canada.
Camila NascimentoDepartment of Psychiatry, University of São Paulo, São Paulo, Brazil.ORCID http://orcid.org/0000-0002-8170-7635
Matthew SudermanMRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK.
Jean-François ThérouxMcGill Group for Suicide Studies, Douglas Mental Health University Institute, Montreal, Canada.
Naguib MechawarMcGill Group for Suicide Studies, Douglas Mental Health University Institute, Montreal, Canada.
Jiannis RagoussisMcGill University and Genome Quebec Innovation Centre, Department of Human Genetics, McGill University, Montreal, Canada.ORCID http://orcid.org/0000-0002-8515-0934
Gustavo TureckiMcGill Group for Suicide Studies, Douglas Mental Health University Institute, Montreal, Canada. gustavo.turecki@mcgill.ca.ORCID http://orcid.org/0000-0003-4075-2736
Douglas Mental Health University Institute · CAMcGill University and Génome Québec Innovation Centre · CAAt Bristol · GBUniversidade de São Paulo · BR

Funding

Gouvernement du Canada | Canadian Institutes of Health Research (Instituts de Recherche en Santé du Canada) EGM141899Gouvernement du Canada | Canadian Institutes of Health Research (Instituts de Recherche en Santé du Canada) FDN148374Medical Research Council MC_UU_00011/5
6 · The paper itself

Abstract

Single-cell and single-nucleus sequencing techniques are a burgeoning field with various biological, biomedical and clinical applications. Numerous high- and low-throughput methods have been developed for sequencing the RNA and DNA content of single cells. However, for all these methods, the key requirement is high-quality input of a single-cell or single-nucleus suspension. Preparing such a suspension is the limiting step when working with fragile, archived tissues of variable quality. This hurdle can prevent such tissues from being extensively investigated with single-cell technologies. We describe a protocol for preparing single-nucleus suspensions within the span of a few hours that reliably works for multiple postmortem and archived tissue types using standard laboratory equipment. The stages of the protocol include tissue preparation and dissociation, nuclei extraction, and nuclei concentration assessment and capture. The protocol is comparable to other published protocols but does not require fluorescence-assisted nuclei sorting (FANS) or ultracentrifugation. The protocol can be carried out by a competent graduate student familiar with basic laboratory techniques and equipment. Moreover, these preparations are compatible with single-nucleus (sn)RNA-seq and assay for transposase-accessible chromatin (ATAC)-seq using the 10X Genomics Chromium system. The protocol reliably results in efficient capture of single nuclei for high-quality snRNA-seq libraries.

Indexed as

Cell NucleusSequence Analysis, DNAHumansSingle-Cell Analysis

Identifiers

PMID33972803
OpenAlexW3107103270

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.