Evidence map›Paper›PMID 32228458›Full record

ArticleBMC immunology2020

Functional comparison of PBMCs isolated by Cell Preparation Tubes (CPT) vs. Lymphoprep Tubes.

Han Chen, Christian M Schürch, Kevin Noble, Kenneth Kim, Peter O Krutzik, Erika O'Donnell, Jason Vander Tuig, Garry P Nolan, David R McIlwain

Open access · goldAbstract read
In one paragraph

Article in BMC immunology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

18 citing papers in PubMed, 53 citations in OpenAlex.

  1. Review
  2. Article
  3. SiteCELL enablesiScience · 2026
    Article
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  5. Article
  6. Review
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  8. Article
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  11. Review
  12. Article
  13. Article
  14. Frontiers in pharmacology · 2023
    Article
  15. Article
  16. Article
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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

9 authors at 3 institutions in 1 country.

Han ChenDepartment of Microbiology & Immunology, Stanford University School of Medicine, Stanford, CA, USA.
Christian M SchürchDepartment of Microbiology & Immunology, Stanford University School of Medicine, Stanford, CA, USA.
Kevin NobleWCCT Global Inc., Cypress, CA, USA.
Kenneth KimARK Clinical Research, Long Beach, CA, USA.
Peter O KrutzikPrimity Bio Inc., Fremont, CA, USA.
Erika O'DonnellPrimity Bio Inc., Fremont, CA, USA.
Jason Vander TuigPrimity Bio Inc., Fremont, CA, USA.
Garry P NolanDepartment of Microbiology & Immunology, Stanford University School of Medicine, Stanford, CA, USA.
David R McIlwainDepartment of Microbiology & Immunology, Stanford University School of Medicine, Stanford, CA, USA. mcilwain@stanford.edu.
Primity Bio (United States) · USStanford University · USArk Therapeutic (United States) · US

Funding

Using a tonsil organoid system to probe conditions for the induction of protective antibody and T cell responses to influenza.U19AI057229 · NIAID · STANFORD UNIVERSITY · PI Mark Morris Davis · 2003 to 2026
$88.5M
Systems Biology CoreU19AI100627 · NIAID · SCRIPPS RESEARCH INSTITUTE, THE · PI NOLAN, GARRY P · 2012 to 2021
$49.1M
CIHRNIAID NIH HHS U19 AI057229NIAID NIH HHS U19 AI100627NIH HHS 5U19AI100627-07
6 · The paper itself

Abstract

backgroundCryopreserved human peripheral blood mononuclear cells (PBMCs) are a commonly used sample type for a variety of immunological assays. Many factors can affect the quality of PBMCs, and careful consideration and validation of an appropriate PBMC isolation and cryopreservation method is important for well-designed clinical studies. A major point of divergence in PBMC isolation protocols is the collection of blood, either directly into vacutainers pre-filled with density gradient medium or the use of conical tubes containing a porous barrier to separate the density gradient medium from blood. To address potential differences in sample outcome, we isolated, cryopreserved, and compared PBMCs using parallel protocols differing only in the use of one of two common tube types for isolation.

methodsWhole blood was processed in parallel using both Cell Preparation Tubes™ (CPT, BD Biosciences) and Lymphoprep™ Tubes (Axis-Shield) and assessed for yield and viability prior to cryopreservation. After thawing, samples were further examined by flow cytometry for cell yield, cell viability, frequency of 10 cell subsets, and capacity for stimulation-dependent CD4+ and CD8+ T cell intracellular cytokine production.

resultsNo significant differences in cell recovery, viability, frequency of immune cell subsets, or T cell functionality between PBMC samples isolated using CPT or Lymphoprep tubes were identified.

conclusionCPT and Lymphoprep tubes are effective and comparable methods for PBMC isolation for immunological studies.

Indexed as

CD4-Positive T-LymphocytesCD8-Positive T-LymphocytesCells, CulturedCell SeparationCell SurvivalCryopreservationCytokinesFicollFlow CytometryHumansLeukocytes, MononuclearMetrizoic AcidCytokinesFicolllymphoprepMetrizoic AcidBD Cell Preparation TubesCytokineFlow cytometryLymphoprep TubesPeripheral blood mononuclear cellsT cell

Identifiers

PMID32228458
PMCPMC7106580
OpenAlexW3013758779

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.