Evidence map›Paper›PMID 27484403›Full record

ArticleScientific reports2016

Composite alginate gels for tunable cellular microenvironment mechanics.

Adele Khavari, Magnus Nydén, David A Weitz, Allen J Ehrlicher

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
4.4field-weighted citation impact, top 6% 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

19 citing papers in PubMed, 57 citations in OpenAlex.

  1. Article
  2. Quantifying cell traction forces at the single-fiber scale in 3D: An approach based on deformable photopolymerized fiber arrays.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  13. Nanostructured Biomaterials forCurrent opinion in biomedical engineering · 2021
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 3 countries.

Adele KhavariApplied Chemistry, Chemical and Biological Engineering, Chalmers University of Technology, SE-412 96 Göteborg, Sweden.
Magnus NydénApplied Chemistry, Chemical and Biological Engineering, Chalmers University of Technology, SE-412 96 Göteborg, Sweden.
David A WeitzDepartment of Bioengineering, McGill University, Montreal Canada H3A 0C3.
Allen J EhrlicherDepartment of Bioengineering, McGill University, Montreal Canada H3A 0C3.
Chalmers University of Technology · SEHarvard University · USMcGill University · CA

Funding

Biophysical Properties of Renal Glomeruli and PodocytesR01DK083592 · NIDDK · UT SOUTHWESTERN MEDICAL CENTER · PI JANMEY, PAUL A, MILLER, RICHARD TYLER · 2010 to 2013
$2.2M
NIDDK NIH HHS R01 DK083592
6 · The paper itself

Abstract

The mechanics of the cellular microenvironment can be as critical as biochemistry in directing cell behavior. Many commonly utilized materials derived from extra-cellular-matrix create excellent scaffolds for cell growth, however, evaluating the relative mechanical and biochemical effects independently in 3D environments has been difficult in frequently used biopolymer matrices. Here we present 3D sodium alginate hydrogel microenvironments over a physiological range of stiffness (E = 1.85 to 5.29 kPa), with and without RGD binding sites or collagen fibers. We use confocal microscopy to measure the growth of multi-cellular aggregates (MCAs), of increasing metastatic potential in different elastic moduli of hydrogels, with and without binding factors. We find that the hydrogel stiffness regulates the growth and morphology of these cell clusters; MCAs grow larger and faster in the more rigid environments similar to cancerous breast tissue (E = 4-12 kPa) as compared to healthy tissue (E = 0.4-2 kpa). Adding binding factors from collagen and RGD peptides increases growth rates, and change maximum MCA sizes. These findings demonstrate the utility of these independently tunable mechanical/biochemistry gels, and that mechanical confinement in stiffer microenvironments may increase cell proliferation.

Indexed as

Cellular MicroenvironmentAdenocarcinomaAlginatesAnimalsCell DifferentiationCell ProliferationFemaleGlucuronic AcidHexuronic AcidsHydrogelsLung NeoplasmsMammary Glands, AnimalMammary Neoplasms, AnimalMiceTissue ScaffoldsAlginatesGlucuronic AcidHexuronic AcidsHydrogels

Identifiers

PMID27484403
PMCPMC4971458
OpenAlexW2492962850

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.