Evidence map›Paper›PMID 28702529›Full record

ArticleThe Analyst2017

Assessing chemotherapeutic effectiveness using a paper-based tumor model.

Matthew W Boyce, Gabriel J LaBonia, Amanda B Hummon, Matthew R Lockett

Abstract read
In one paragraph

Article in The Analyst, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
–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

21 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Physiologically relevant oxygen tensions differentially regulate hepatotoxic responses in HepG2 cells.Toxicology in vitro : an international journal published in association with BIBRA · 2021
    Article
  11. Unconventional Biomaterials for Cardiovascular Tissue Engineering.Current opinion in biomedical engineering · 2021
    Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Article
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

4 authors.

Matthew W BoyceDepartment of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
Gabriel J LaBoniaDepartment of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN, USA and Harper Cancer Research Institute, University of Notre Dame, Notre Dame, IN, USA.
Amanda B HummonDepartment of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN, USA and Harper Cancer Research Institute, University of Notre Dame, Notre Dame, IN, USA.
Matthew R LockettDepartment of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA and Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA. mlockett@unc.edu.ORCID http://orcid.org/0000-0003-4851-7757

Funding

Spatial SILAC: Examining the Proteome in 3D Cell CulturesR01GM110406 · NIGMS · UNIVERSITY OF NOTRE DAME · PI HUMMON, AMANDA B. · 2014 to 2022
$3.0M
NIGMS NIH HHS R01 GM110406
6 · The paper itself

Abstract

In vitro models for screening new cancer chemotherapeutics often rely on two-dimensional cultures to predict therapeutic potential. Unfortunately, the predictive power of these models is limited, as they fail to recapitulate the complex three-dimensional environments in tumors that promote a chemoresistant phenotype. In this study, we describe the preparation and characterization of paper-based cultures (PBCs) engineered to assess chemotherapeutic effectiveness in three dimensional, diffusion-limited environments. Similar environments are found in poorly vascularized tumors. Monotonic gradients develop across these cultures, which are assembled by stacking cell-laden paper scaffolds to yield thick tissue-like structures, and provide distinct chemical environments for each scaffold. After prolonged incubation, the scaffolds can simply be peeled apart and analyzed. Through fluorescence imaging, we determined that viable and proliferative cell populations were most abundant in scaffolds close to the nutrient-rich medium. By adjusting the cell density, we modulated the spatiotemporal evolution of oxygen gradients across the cultures and correlated these environmental changes with cellular sensitivity to SN-38 exposure. From these results, we showed that differences in the oxygen gradients produced cellular populations with significantly different chemosensitivities. Through this work, we highlight PBCs ability to serve as an analytical model capable of determining chemotherapeutic effectiveness under a range of chemical environments.

Indexed as

Cell Culture TechniquesModels, BiologicalCell CountDiffusionHCT116 CellsHumansNeoplasmsOxygenPaperOxygen

Identifiers

PMID28702529
PMCPMC5557652

What OpenQuestion holds

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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.