Evidence map›Paper›PMID 35420805›Full record

ArticleJournal of medicinal chemistry2022

On the Utility of Chemical Strategies to Improve Peptide Gut Stability.

Thomas Kremsmayr, Aws Aljnabi, Juan B Blanco-Canosa, Hue N T Tran, Nayara Braga Emidio, Markus Muttenthaler

Open access · hybridAbstract read
In one paragraph

Article in Journal of medicinal chemistry, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 1 pooled it
8.4field-weighted citation impact, top 1% 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

47 citing papers in PubMed, 1 synthesis or guideline pooled it, 109 citations in OpenAlex.

  1. Pooled it
  2. Design of aptamer peptides for immunomodulation.Journal of enzyme inhibition and medicinal chemistry · 2026
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  13. Myxarylin: TotalJournal of the American Chemical Society · 2026
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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

6 authors at 3 institutions in 3 countries.

Thomas KremsmayrFaculty of Chemistry, Institute of Biological Chemistry, University of Vienna, Währinger Straße 38, Vienna 1090, Austria.ORCID 0000-0003-0630-2555
Aws AljnabiFaculty of Chemistry, Institute of Biological Chemistry, University of Vienna, Währinger Straße 38, Vienna 1090, Austria.
Juan B Blanco-CanosaDepartment of Biological Chemistry, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18-26, Barcelona 08034, Spain.ORCID 0000-0001-5738-6993
Hue N T TranInstitute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland 4072, Australia.ORCID 0000-0001-5181-1899
Nayara Braga EmidioInstitute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland 4072, Australia.ORCID 0000-0001-7835-9636
Markus MuttenthalerFaculty of Chemistry, Institute of Biological Chemistry, University of Vienna, Währinger Straße 38, Vienna 1090, Austria.ORCID 0000-0003-1996-4646
University of Vienna · ATThe University of Queensland · AUInstitute of Advanced Chemistry of Catalonia · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Inherent susceptibility of peptides to enzymatic degradation in the gastrointestinal tract is a key bottleneck in oral peptide drug development. Here, we present a systematic analysis of (i) the gut stability of disulfide-rich peptide scaffolds, orally administered peptide therapeutics, and well-known neuropeptides and (ii) medicinal chemistry strategies to improve peptide gut stability. Among a broad range of studied peptides, cyclotides were the only scaffold class to resist gastrointestinal degradation, even when grafted with non-native sequences. Backbone cyclization, a frequently applied strategy, failed to improve stability in intestinal fluid, but several site-specific alterations proved efficient. This work furthermore highlights the importance of standardized gut stability test conditions and suggests defined protocols to facilitate cross-study comparison. Together, our results provide a comparative overview and framework for the chemical engineering of gut-stable peptides, which should be valuable for the development of orally administered peptide therapeutics and molecular probes targeting receptors within the gastrointestinal tract.

Indexed as

CyclotidesAmino Acid SequenceCyclizationCyclotides

Identifiers

PMID35420805
PMCPMC9059125
OpenAlexW4223983339

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.