Evidence map›Paper›PMID 36878883›Full record

ArticleNucleus (Austin, Tex.)2023

Improved protocol for single-nucleus RNA-sequencing of frozen human bladder tumor biopsies.

Sofie S Schmøkel, Iver Nordentoft, Sia V Lindskrog, Philippe Lamy, Michael Knudsen, Jørgen Bjerggaard Jensen, Lars Dyrskjøt

Open access · goldFull text read
In one paragraph

Article in Nucleus (Austin, Tex.), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.8field-weighted citation impact, top 28% 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

5 citing papers in PubMed, 5 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Review
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

7 authors at 2 institutions in 1 country.

Sofie S SchmøkelDepartment of Clinical Medicine, Aarhus University, Aarhus, Denmark.
Iver NordentoftDepartment of Molecular Medicine, Aarhus University Hospital, Aarhus, Denmark.
Sia V LindskrogDepartment of Clinical Medicine, Aarhus University, Aarhus, Denmark.
Philippe LamyDepartment of Molecular Medicine, Aarhus University Hospital, Aarhus, Denmark.
Michael KnudsenDepartment of Molecular Medicine, Aarhus University Hospital, Aarhus, Denmark.
Jørgen Bjerggaard JensenDepartment of Clinical Medicine, Aarhus University, Aarhus, Denmark.
Lars DyrskjøtDepartment of Clinical Medicine, Aarhus University, Aarhus, Denmark.ORCID 0000-0001-7061-9851
Aarhus University · DKAarhus University Hospital · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This paper provides a laboratory workflow for single-nucleus RNA-sequencing (snRNA-seq) including a protocol for gentle nuclei isolation from fresh frozen tumor biopsies, making it possible to analyze biobanked material. To develop this protocol, we used non-frozen and frozen human bladder tumors and cell lines. We tested different lysis buffers (IgePal and Nuclei EZ) and incubation times in combination with different approaches for tissue and cell dissection: sectioning, semi-automated dissociation, manual dissociation with pestles, and semi-automated dissociation combined with manual dissociation with pestles. Our results showed that a combination of IgePal lysis buffer, tissue dissection by sectioning, and short incubation time was the best conditions for gentle nuclei isolation applicable for snRNA-seq, and we found limited confounding transcriptomic changes based on the isolation procedure. This protocol makes it possible to analyze biobanked material from patients with well-described clinical and histopathological information and known clinical outcomes with snRNA-seq.

Indexed as

Urinary Bladder NeoplasmsBase SequenceBiopsyCell LineHumansRNA, Small NuclearRNA, Small Nuclear10× chromiumbladder cancerDroNc-seqDrop-seqnuclei isolationsingle-cell analysissingle-cell RNA-sequencingsingle-nuclei RNA-sequencingsingle-nucleus RNA-sequencing

Identifiers

PMID36878883
PMCPMC10012951
OpenAlexW4323304538

What OpenQuestion holds

Textfull text, public
LicenceCC BY
measurements read69
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.