Evidence map›Paper›PMID 22791367›Full record

ArticleHead & neck2013

Orosphere assay: a method for propagation of head and neck cancer stem cells.

Sudha Krishnamurthy, Jacques E Nör

Abstract read
In one paragraph

Article in Head & neck, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

38 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Review
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  5. Review
  6. Review
  7. Graphene-Based Materials for Efficient Neurogenesis.Advances in experimental medicine and biology · 2022
    Article
  8. Article
  9. Article
  10. Article
  11. Organoids in Tissue Transplantation.Advances in experimental medicine and biology · 2021
    Review
  12. Review
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  14. 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

2 authors.

Sudha KrishnamurthyDepartment of Restorative Sciences, University of Michigan School of Dentistry, Ann Arbor, Michigan, USA.
Jacques E Nör

Funding

Therapeutic Potential and Mechanism of Action of Potent Small Molecule InhibitorsP50CA097248 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI WOLF, GREGORY T · 2002 to 2013
$25.3M
Salivary gland cancer stem cellsR01DE021139 · NIDCR · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Jacques Eduardo Nor · 2011 to 2026
$5.8M
Bcl-2 /CXC Chemokines in Head /Neck Tumor AngiogenesisR01DE015948 · NIDCR · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI NOR, JACQUES EDUARDO · 2004 to 2008
$1.9M
Endothelial and head & neck cancer stem cell crosstalks and resistance to therapyR21DE019279 · NIDCR · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI NOR, JACQUES EDUARDO · 2008 to 2009
$419k
NCI NIH HHS P50 CA097248NCI NIH HHS P50-CA-97248NIDCR NIH HHS R01 DE015948NIDCR NIH HHS R01 DE021139NIDCR NIH HHS R01-DE15948NIDCR NIH HHS R01-DE21139NIDCR NIH HHS R21 DE019279NIDCR NIH HHS R21-DE19279
6 · The paper itself

Abstract

backgroundRecent evidence suggests that head and neck squamous cell carcinomas (HNSCCs) harbor a small subpopulation of highly tumorigenic cells, designated cancer stem cells. A limiting factor in cancer stem cell research is the intrinsic difficulty of expanding cells in an undifferentiated state in vitro.

methodsHere, we describe the development of the orosphere assay, a method for the study of putative head and neck cancer stem cells. An orosphere is defined as a nonadherent colony of cells sorted from primary HNSCCs or from HNSCC cell lines and cultured in 3-dimensional soft agar or ultralow attachment plates. Aldehyde dehydrogenase activity and CD44 expression were used here as stem cell markers.

resultsThis assay allowed for the propagation of head and neck cancer cells that retained stemness and self-renewal.

conclusionThe orosphere assay is well suited for studies designed to understand the pathobiology of head and neck cancer stem cells.

Indexed as

Aldehyde DehydrogenaseBiomarkers, TumorCarcinoma, Squamous CellCell Line, TumorCell MovementCell ProliferationFluorescent Antibody TechniqueHead and Neck NeoplasmsHumansHyaluronan ReceptorsImmunohistochemistryNeoplastic Stem CellsSquamous Cell Carcinoma of Head and NeckAldehyde DehydrogenaseBiomarkers, TumorHyaluronan Receptors

Identifiers

PMID22791367
PMCPMC3887391

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Registered trials

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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.