Evidence map›Paper›PMID 27035989›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2016

Engineering a long-acting, potent GLP-1 analog for microstructure-based transdermal delivery.

Peng-Yu Yang, Huafei Zou, Elizabeth Chao, Lance Sherwood, Vanessa Nunez, Michael Keeney, Esi Ghartey-Tagoe, Zhongli Ding, Herlinda Quirino, Xiaozhou Luo and 6 more

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–field-weighted citation impact
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.

  1. Review
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  7. Review
  8. Acta pharmaceutica Sinica. B · 2023
    Article
  9. Article
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  14. Modelling the intradermal delivery of microneedle array patches for long-acting antiretrovirals using PBPK.European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V · 2019
    Article
  15. Article
  16. Article
  17. Polymeric microneedles for transdermal protein delivery.Advanced drug delivery reviews · 2018
    Review
  18. Article
  19. 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

16 authors.

Peng-Yu YangDepartment of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA 92037; California Institute for Biomedical Research, La Jolla, CA 92037;
Huafei ZouCalifornia Institute for Biomedical Research, La Jolla, CA 92037;
Elizabeth ChaoCalifornia Institute for Biomedical Research, La Jolla, CA 92037;
Lance SherwoodCalifornia Institute for Biomedical Research, La Jolla, CA 92037;
Vanessa NunezCalifornia Institute for Biomedical Research, La Jolla, CA 92037;
Michael KeeneyCorium International, Inc., Menlo Park, CA 94025.
Esi Ghartey-TagoeCorium International, Inc., Menlo Park, CA 94025.
Zhongli DingCorium International, Inc., Menlo Park, CA 94025.
Herlinda QuirinoCalifornia Institute for Biomedical Research, La Jolla, CA 92037;
Xiaozhou LuoDepartment of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA 92037;
Gus WelzelCalifornia Institute for Biomedical Research, La Jolla, CA 92037;
Guohua ChenCorium International, Inc., Menlo Park, CA 94025.
Parminder SinghCorium International, Inc., Menlo Park, CA 94025.
Ashley K WoodsCalifornia Institute for Biomedical Research, La Jolla, CA 92037; awoods@calibr.org schultz@scripps.edu wshen@calibr.org.
Peter G SchultzDepartment of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA 92037; California Institute for Biomedical Research, La Jolla, CA 92037; awoods@calibr.org schultz@scripps.edu wshen@calibr.org.
Weijun ShenCalifornia Institute for Biomedical Research, La Jolla, CA 92037; awoods@calibr.org schultz@scripps.edu wshen@calibr.org.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Antidiabetic treatments aiming to reduce body weight are currently gaining increased interest. Exendin-4, a glucagon-like peptide-1 (GLP-1) receptor agonist administered twice daily via s.c. injection, improves glycemic control, often with associated weight reduction. To further improve the therapeutic efficacy of exendin-4, we have developed a novel peptide engineering strategy that incorporates a serum protein binding motif onto a covalent side-chain staple and applied to the peptide to enhance its helicity and, as a consequence, its potency and serum half-life. We demonstrated that one of the resulting peptides, E6, has significantly improved half-life and glucose tolerance in an oral glucose tolerance test in rodents. Chronic treatment of E6 significantly decreased body weight and fasting blood glucose, improved lipid metabolism, and also reduced hepatic steatosis in diet-induced obese mice. Moreover, the high potency of E6 allowed us to administer this peptide using a dissolvable microstructure-based transdermal delivery system. Pharmacokinetic and pharmacodynamic studies in guinea pigs showed that a single 5-min application of a microstructure system containing E6 significantly improved glucose tolerance for 96 h. This delivery strategy may offer an effective and patient-friendly alternative to currently marketed GLP-1 injectables and can likely be extended to other peptide hormones.

Indexed as

Protein EngineeringAdministration, CutaneousAmino Acid SequenceBody WeightCircular DichroismCyclic AMPGlucagon-Like Peptide 1Glucose Tolerance TestHEK293 CellsHumansCyclic AMPGlucagon-Like Peptide 1GLP-1 receptor agonisthalf-life extensionhelix stabilizationlipidated cross-linkermicrostructure array

Identifiers

PMID27035989
PMCPMC4839405

What OpenQuestion holds

Textmetadata
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.