Evidence map›Paper›PMID 34655329›Full record

ArticleBiomedical microdevices2021

Dynamic flow and shear stress as key parameters for intestinal cells morphology and polarization in an organ-on-a-chip model.

Chiara A M Fois, Aaron Schindeler, Peter Valtchev, Fariba Dehghani

Open access · hybridAbstract read
In one paragraph

Article in Biomedical microdevices, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 2 pooled it
3.6field-weighted citation impact, top 7% 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

42 citing papers in PubMed, 2 syntheses or guidelines pooled it, 71 citations in OpenAlex.

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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

4 authors at 1 institution in 1 country.

Chiara A M FoisSchool of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, 2006, Australia.ORCID 0000-0002-8296-3235
Aaron SchindelerSchool of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, 2006, Australia.ORCID 0000-0002-7757-6281
Peter ValtchevSchool of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, 2006, Australia.ORCID 0000-0002-2622-5721
Fariba DehghaniSchool of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, 2006, Australia. fariba.dehghani@sydney.edu.au.ORCID 0000-0002-7805-8101
The University of Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Gut-on-a-chip microfluidic devices have emerged as versatile and practical systems for modeling the human intestine in vitro. Cells cultured under microfluidic conditions experience the effect of shear stress, used as a biomechanical cue to promote a faster cell polarization in Caco-2 cells when compared with static culture conditions. However, published systems to date have utilized a constant flow rate that fails to account for changes in cell shear stress ([Formula: see text]) resulting from changes in cell elongation that occur with differentiation. In this study, computational fluid dynamics (CFD) simulations predict that cells with villi-like morphology experience a [Formula: see text] higher than bulge-like cells at the initial growth stages. Therefore, we investigated the use of a dynamic flow rate to maintain a constant [Formula: see text] across the experiment. Microscopic assessment of cell morphology and dome formation confirmed the initiation of Caco-2 polarization within three days. Next, adopting our dynamic approach, we evaluated whether the following decreased flow could still contribute to complete cell differentiation if compared with the standard constant flow methodology. Caco-2 cells polarized under both conditions, secreted mucin-2 and villin and formed tight junctions and crypt-villi structures. Gene expression was not impacted using the dynamic flow rate. In conclusion, our dynamic flow approach still facilitates cell differentiation while enabling a reduced consumption of reagents.

Indexed as

Lab-On-A-Chip DevicesMicrofluidicsCaco-2 CellsHumansStress, MechanicalTight JunctionsCell differentiationComputational fluid dynamicsIntestinal modelsMicrofluidicsOrgan-on-a-chip

Identifiers

PMID34655329
PMCPMC8520520
OpenAlexW3207800715

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.