Evidence map›Paper›PMID 23151175›Full record

ArticleBiomacromolecules2012

Tetrakis(hydroxymethyl) phosphonium chloride as a covalent cross-linking agent for cell encapsulation within protein-based hydrogels.

Cindy Chung, Kyle J Lampe, Sarah C Heilshorn

Abstract read
In one paragraph

Article in Biomacromolecules, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
3.9field-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

39 citing papers in PubMed, 134 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Engineered Protein Hydrogels as Biomimetic Cellular Scaffolds.Advanced materials (Deerfield Beach, Fla.) · 2024
    Review
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Towards organoid culture without Matrigel.Communications biology · 2021
    Review
  11. Soft Hydrogel Inspired by Elastomeric Proteins.ACS biomaterials science & engineering · 2021
    Article
  12. Article
  13. Review
  14. Article
  15. Self-Assembly and Genetically Engineered Hydrogels.Advances in biochemical engineering/biotechnology · 2021
    Review
  16. Article
  17. Article
  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

3 authors at 1 institution in 1 country.

Cindy ChungMaterials Science and Engineering, Stanford University, Stanford, California 94305, United States.
Kyle J Lampe
Sarah C Heilshorn
Stanford University · US

Funding

Engineering 3D in vitro niches to reveal fundamentals of cellular biomechanicsDP2OD006477 · OD · STANFORD UNIVERSITY · PI HEILSHORN, SARAH C · 2009 to 2009
$2.4M
3D Bioengineering Strategies to Mimic Human Skeletal Muscle Progenitor Cell NicheR21AR062359 · NIAMS · STANFORD UNIVERSITY · PI BLAU, HELEN M, HEILSHORN, SARAH C · 2011 to 2012
$367k
A combined drug and neural stem cell delivery approach for treating strokeF32NS076222 · NINDS · STANFORD UNIVERSITY · PI LAMPE, KYLE J. · 2011 to 2013
$121k
NIAMS NIH HHS R21 AR062359NIH HHS DP2 OD006477NIH HHS DP2OD006477NINDS NIH HHS F32 NS076222NINDS NIH HHS F32NS076222
6 · The paper itself

Abstract

Native tissues provide cells with complex, three-dimensional (3D) environments comprised of hydrated networks of extracellular matrix proteins and sugars. By mimicking the dimensionality of native tissue while deconstructing the effects of environmental parameters, protein-based hydrogels serve as attractive, in vitro platforms to investigate cell-matrix interactions. For cell encapsulation, the process of hydrogel formation through physical or covalent cross-linking must be mild and cell compatible. While many chemical cross-linkers are commercially available for hydrogel formation, only a subset are cytocompatible; therefore, the identification of new and reliable cytocompatible cross-linkers allows for greater flexibility of hydrogel design for cell encapsulation applications. Here, we introduce tetrakis(hydroxymethyl) phosphonium chloride (THPC) as an inexpensive, amine-reactive, aqueous cross-linker for 3D cell encapsulation in protein-based hydrogels. We characterize the THPC-amine reaction by demonstrating THPC's ability to react with primary and secondary amines of various amino acids. In addition, we demonstrate the utility of THPC to tune hydrogel gelation time (6.7±0.2 to 27±1.2 min) and mechanical properties (storage moduli ∼250 Pa to ∼2200 Pa) with a recombinant elastin-like protein. Lastly, we show cytocompatibility of THPC for cell encapsulation with two cell types, embryonic stem cells and neuronal cells, where cells exhibited the ability to differentiate and grow in elastin-like protein hydrogels. The primary goal of this communication is to report the identification and utility of tetrakis(hydroxymethyl) phosphonium chloride (THPC) as an inexpensive but widely applicable cross-linker for protein-based materials.

Indexed as

AnimalsBiocompatible MaterialsCell LineCells, ImmobilizedCross-Linking ReagentsElastinHydrogelsMiceOrganophosphorus CompoundsRecombinant ProteinsBiocompatible MaterialsCross-Linking ReagentsElastinHydrogelsOrganophosphorus CompoundsRecombinant Proteinstetramethylolphosphonium chloride

Identifiers

PMID23151175
PMCPMC3556456
OpenAlexW2084513647

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.