Cited by 39Diabetes Treatment and ManagementDiabetes Management and ResearchChemical Synthesis and Analysis

Corrination of a GLP-1 Receptor Agonist for Glycemic Control without Emesis

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Borner, Tito, Workinger, Jayme L., Tinsley, Ian C., Fortin, Samantha M., Stein, Lauren M., Chepurny, Oleg G., Holz, George G., Wierzba, Aleksandra J. +8 more·2020·Cell Reports

Abstract

Glucagon-like peptide-1 receptor (GLP-1R) agonists used to treat type 2 diabetes mellitus often produce nausea, vomiting, and in some patients, undesired anorexia. Notably, these behavioral effects are caused by direct central GLP-1R activation. Herein, we describe the creation of a GLP-1R agonist conjugate with modified brain penetrance that enhances GLP-1R-mediated glycemic control without inducing vomiting. Covalent attachment of the GLP-1R agonist exendin-4 (Ex4) to dicyanocobinamide (Cbi), a corrin ring containing precursor of vitamin B12, produces a "corrinated" Ex4 construct (Cbi-Ex4). Data collected in the musk shrew (Suncus murinus), an emetic mammal, reveal beneficial effects of Cbi-Ex4 relative to Ex4, as evidenced by improvements in glycemic responses in glucose tolerance tests and a profound reduction of emetic events. Our findings highlight the potential for clinical use of Cbi-Ex4 for millions of patients seeking improved glycemic control without common side effects (e.g., emesis) characteristic of current GLP-1 therapeutics.

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Crossref · 10.1016/j.celrep.2020.107768

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  • An effect on the central nervous system has been suggested as a recent study with modified exenatide showed less vomiting in musk shrews, despite retaining effects on glucose control.

    “An effect on the central nervous system has been suggested as a recent study with modified exenatide—with reduced brain penetrance—showed less vomiting in musk shrews, despite retaining effects on glucose control (46).”

    From Safety of Semaglutide (2021) · cites this paper as [46]

    The Results and Discussion report that Cbi-Ex4 caused significantly less emesis than native exendin-4 in musk shrews while retaining glucose-clearing potency. The Introduction and Results and Discussion propose reduced CNS penetrance as an explanation, but describe it as putative rather than an established property; the citing sentence presents reduced brain penetrance as fact. Page numbers are unavailable in our copy. (LLM, conf=0.85)

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  1. Rosenblatt DS, Fenton WA, Scriver CR, Beaudet AL, Valle D, and Sly WS (2001). Inherited Disorders of Folate and Cobalamin Transport and Metabolism (McGraw-Hill).

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Authors
Borner, T., Workinger, J. L., Tinsley, I. C., Fortin, S. M., Stein, L. M., Chepurny, O. G., Holz, G. G., Wierzba, A. J., Gryko, D., Nexø, E., Shaulson, E. D., Bamezai, A., Da Silva, V. A. R., De Jonghe, B. C., Hayes, M. R., & Doyle, R. P.
Affiliations
  • University of Pennsylvania (US)
  • Syracuse University (US)
  • SUNY Upstate Medical University (US)
  • Institute of Organic Chemistry (PL)
  • Aarhus University (DK)
Corresponding author
Doyle, Robert P.
Venue
Cell Reports
Publisher
Elsevier BV
Published
2020-06
Volume
31
Issue
11
Pages
107768
ISSN
2211-1247 (ISSN-L)
OpenAlex
W3035029907
Cited by
39
References
89
Citations by year
2026: 5 · 2025: 9 · 2024: 6 · 2023: 6 · 2022: 3 · 2021: 9 · 2020: 1
FWCI
3.58
Type
journal article
Language
en
Open access
Locations
  • Cell Reports (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Institutes of Health (DK115762, DK069575, DK112812, 097675, DK097675)
  • Fundacja na rzecz Nauki Polskiej
  • Syracuse University
  • Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (186728, 178114, P2ZHP3?, SNF P2ZHP3\u2013178114, P400PB\u2013186728)
  • Novo Nordisk
  • Eli Lilly and Company
  • University of Pittsburgh
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chemical Synthesis and Analysis
Keywords
GLP-1 receptor agonists, exendin-4, brain penetration, vomiting, nausea and vomiting, type 2 diabetes, glycemic control, Suncus murinus, glucose tolerance, anorexia
MeSH terms
Glucagon-Like Peptide-1 Receptor, Glycemic Control, Glucagon-Like Peptide-1 Receptor Agonists, Animals, Anorexia, Blood Glucose, Humans, Hypoglycemic Agents, Peptides, Receptors, Glucagon, Glucagon-Like Peptide 1

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