Evidence map›Paper›PMID 23827184›Full record

ArticleBiomaterials2013

A microparticle approach to morphogen delivery within pluripotent stem cell aggregates.

Andrés M Bratt-Leal, Anh H Nguyen, Katy A Hammersmith, Ankur Singh, Todd C McDevitt

Open access · greenAbstract read
In one paragraph

Article in Biomaterials, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 1 pooled it
3.1field-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

39 citing papers in PubMed, 1 synthesis or guideline pooled it, 76 citations in OpenAlex.

  1. Pooled it
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  16. Synthetic alternatives to Matrigel.Nature reviews. Materials · 2020
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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

5 authors at 2 institutions in 1 country.

Andrés M Bratt-LealThe Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0535, USA.
Anh H Nguyen
Katy A Hammersmith
Ankur Singh
Todd C McDevitt
Georgia Institute of Technology · USThe Wallace H. Coulter Department of Biomedical Engineering · US

Funding

Research Training Program Plan on Cell and Tissue Engineering (CTEng)T32GM008433 · NIGMS · GEORGIA INSTITUTE OF TECHNOLOGY · PI GARCIA, ANDRES J · 1991 to 2021
$7.1M
Microsphere-mediated differentiation of embryonic stem cellsR01GM088291 · NIGMS · GEORGIA INSTITUTE OF TECHNOLOGY · PI MCDEVITT, TODD C · 2009 to 2013
$1.7M
NIGMS NIH HHS GM008433NIGMS NIH HHS GM088291NIGMS NIH HHS R01 GM088291NIGMS NIH HHS T32 GM008433
6 · The paper itself

Abstract

Stem cell fate and specification is largely controlled by extrinsic cues that comprise the 3D microenvironment. Biomaterials can serve to control the spatial and temporal presentation of morphogenic molecules in order to direct stem cell fate decisions. Here we describe a microparticle (MP)-based approach to deliver growth factors within multicellular aggregates to direct pluripotent stem cell differentiation. Compared to conventional soluble delivery methods, gelatin MPs laden with BMP4 or noggin induced efficient gene expression of mesoderm and ectoderm lineages, respectively, despite using nearly 12-fold less total growth factor. BMP4-laden MPs increased the percentage of cells expressing GFP under the control of the Brachyury-T promoter as visualized by whole-mount confocal imaging and quantified by flow cytometry. Furthermore, the ability to localize MPs laden with different morphogens within a particular hemisphere of stem cell aggregates allowed for spatial control of differentiation within 3D cultures. Overall, localized delivery of growth factors within multicellular aggregates from microparticle delivery vehicles is an important step towards scalable differentiation technologies and the study of morphogen gradients in pluripotent stem cell differentiation.

Indexed as

MicrospheresAnimalsBone Morphogenetic Protein 4Cell AggregationCell DifferentiationCoculture TechniquesEmbryoid BodiesGelatinMesodermMicePluripotent Stem CellsSpheroids, CellularBone Morphogenetic Protein 4GelatinBone morphogenic proteinDifferentiationEmbryoid bodyEmbryonic stem cellsMesodermMicroparticle

Identifiers

PMID23827184
PMCPMC3800695
OpenAlexW2007935675

What OpenQuestion holds

Textmetadata
LicenceTDM
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.