Evidence map›Paper›PMID 29551712›Full record

ArticleJournal of controlled release : official journal of the Controlled Release Society2018

Fusion of fibroblast growth factor 21 to a thermally responsive biopolymer forms an injectable depot with sustained anti-diabetic action.

Caslin A Gilroy, Stefan Roberts, Ashutosh Chilkoti

Open access · greenAbstract read
In one paragraph

Article in Journal of controlled release : official journal of the Controlled Release Society, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

22 citing papers in PubMed, 56 citations in OpenAlex.

  1. Review
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  8. Review
  9. Review
  10. Article
  11. Intratumoral delivery of brachytherapy and immunotherapy by a thermally triggered polypeptide depot.Journal of controlled release : official journal of the Controlled Release Society · 2022
    Article
  12. Article
  13. Article
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  16. Review
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  19. Conjugate of Doxorubicin to Albumin-Binding Peptide Outperforms Aldoxorubicin.Small (Weinheim an der Bergstrasse, Germany) · 2019
    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.

Caslin A GilroyDepartment of Biomedical Engineering, Pratt School of Engineering, Duke University, 101 Science Dr., Campus Box 90281, Durham, NC 27708, USA.
Stefan RobertsDepartment of Biomedical Engineering, Pratt School of Engineering, Duke University, 101 Science Dr., Campus Box 90281, Durham, NC 27708, USA.
Ashutosh ChilkotiDepartment of Biomedical Engineering, Pratt School of Engineering, Duke University, 101 Science Dr., Campus Box 90281, Durham, NC 27708, USA. Electronic address: chilkoti@duke.edu.
Duke University · US

Funding

ELASTIN FUSION PROTEINSR01GM061232 · NIGMS · DUKE UNIVERSITY · PI CHILKOTI, ASHUTOSH · 2000 to 2017
$4.6M
Protease Operated Depot for Delivery of GLP-1R01DK091789 · NIDDK · DUKE UNIVERSITY · PI CHILKOTI, ASHUTOSH · 2012 to 2015
$1.3M
NIDDK NIH HHS R01 DK091789NIGMS NIH HHS R01 GM061232
6 · The paper itself

Abstract

Fibroblast growth factor 21 (FGF21) is under investigation as a type 2 diabetes protein drug, but its efficacy is impeded by rapid in vivo clearance and by costly production methods. To improve the protein's therapeutic utility, we recombinantly expressed FGF21 as a fusion with an elastin-like polypeptide (ELP), a peptide polymer that exhibits reversible thermal phase behavior. Below a critical temperature, ELPs exist as miscible unimers, while above, they associate into a coacervate. The thermal responsiveness of ELPs is retained upon fusion to proteins, which has notable consequences for the production and in vivo delivery of FGF21. First, the ELP acts as a solubility enhancer during E. coli expression, yielding active fusion protein from the soluble cell lysate fraction and eliminating the protein refolding steps that are required for purification of FGF21 from inclusion bodies. Second, the ELP's phase transition behavior is exploited for facile chromatography-free purification of the ELP-FGF21 fusion. Third, the composition and molecular weight of the ELP are designed such that the ELP-FGF21 fusion undergoes a phase transition triggered solely by body heat, resulting in an immiscible viscous phase upon subcutaneous (s.c.) injection and thereby creating an injectable depot. Indeed, a single s.c. injection of ELP-FGF21 affords up to five days of sustained glycemic control in ob/ob mice. The ELP fusion partner massively streamlines production and purification of FGF21, while providing a controlled release method for delivery that reduces the frequency of injection, thereby enhancing the pharmacological properties of FGF21 as a protein drug to treat metabolic disease.

Indexed as

Hot Temperature3T3 CellsAnimalsBiopolymersBody TemperatureDelayed-Action PreparationsDiabetes Mellitus, ExperimentalDose-Response Relationship, DrugDrug Delivery SystemsElastinFibroblast Growth FactorsHEK293 CellsHumansHypoglycemic AgentsMaleMiceBiopolymersDelayed-Action PreparationsElastinfibroblast growth factor 21Fibroblast Growth FactorsHypoglycemic AgentsDrug deliveryElastin-like polypeptideFibroblast growth factor 21Recombinant fusion proteinSubcutaneous depotType 2 diabetes

Identifiers

PMID29551712
PMCPMC5945213
OpenAlexW2766363204

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.