The effects of dual GLP-1/GIP receptor agonism on glucagon secretion-A Review
Open accessAbstract
The gut-derived incretin hormones glucagon-like peptide 1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP) are secreted after meal ingestion and work in concert to promote postprandial insulin secretion. Furthermore, GLP-1 inhibits glucagon secretion when plasma glucose concentrations are above normal fasting concentrations while GIP acts glucagonotropically at low glucose levels. A dual incretin receptor agonist designed to co-activate GLP-1 and GIP receptors was recently shown to elicit robust improvements of glycemic control (mean haemoglobin A1c reduction of 1.94%) and massive body weight loss (mean weight loss of 11.3 kg) after 26 weeks of treatment with the highest dose (15 mg once weekly) in a clinical trial including overweight/obese patients with type 2 diabetes. Here, we describe the mechanisms by which the two incretins modulate alpha cell secretion of glucagon, review the effects of co-administration of GLP-1 and GIP on glucagon secretion, and discuss the potential role of glucagon in the therapeutic effects observed with novel unimolecular dual GLP-1/GIP receptor agonists. For clinicians and researchers, this manuscript offers an understanding of incretin physiology and pharmacology, and provides mechanistic insight into future antidiabetic and obesity treatments.
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A dual incretin receptor agonist co-activating GLP-1 and GIP receptors produces significant improvements in glycemic control (mean HbA1c reduction of 1.94%) and massive weight loss (mean weight loss of 11.3 kg) after 26 weeks of treatment with the highest dose (15 mg/weekly) in overweight/obese patients with T2DM.
“A dual incretin receptor agonist that co-activates GLP-1 and GIP receptors has been shown in a clinical trial involving overweight/obese patients with T2DM to produce significant improvements in glycemic control (mean HBA1c reduction of 1.94%) and massive weight loss (mean weight loss of 11.3 kg) after 26 weeks of treatment with the highest dose (15 mg/weekly) (85).”
GLP-1 and GIP both modulate glucagon release but with differential effects according to glycemic status.
“GLP-1 and GIP both modulate glucagon release but with differential effects according to gly cemic status (26-28)”
From Effects of Tirzepatide vs Semaglutide on β-Cell Function, Insulin Sensitivity, and Glucose Control During a Meal Test (2024) · cites this paper as [27]
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- Authors
- Mathiesen, D. S., Bagger, J. I., Bergmann, N. C., Lund, A., Christensen, M. B., Vilsbøll, T., & Knop, F. K.
- Affiliations
- University of Copenhagen (DK)
- Corresponding author
- Knop, Filip K.
- ORCID
- Venue
- International Journal of Molecular Sciences
- Publisher
- MDPI AG
- Published
- 2019-08-22
- Volume
- 20
- Issue
- 17
- Pages
- 4092
- ISSN
- 1422-0067 (ISSN-L)
- PMC
- PMC6747202
- OpenAlex
- W2969584990
- Cited by
- 80
- References
- 30
- Citations by year
- 2026: 10 · 2025: 11 · 2024: 11 · 2023: 11 · 2022: 16 · 2021: 11 · 2020: 8 · 2019: 2
- FWCI
- 1.42
- Type
- journal article
- Language
- en
- Open access
- gold
- dx.doi.org
- Licence
- Locations
- International Journal of Molecular Sciences (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Research at the University of Copenhagen (University of Copenhagen) (publishedVersion, cc-by)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Funders
- Steno Diabetes Center Copenhagen (SDCC 3.F CMP)
- Novo Nordisk Fonden (NNF17OC0029370, NNF17OC0027220, NNF17OC0027794)
- Topics
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
- Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
- Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
- Keywords
- GIP/GLP-1 receptor agonist, glucagon-like peptide-1, glucose-dependent insulinotropic polypeptide, glucagon secretion, incretins, type 2 diabetes, obesity, glycemic control, weight loss
- MeSH terms
- Glucagon-Like Peptide-1 Receptor Agonists, Animals, Diabetes Mellitus, Type 2, Gastric Inhibitory Polypeptide, Glucagon, Humans, Receptors, Gastrointestinal Hormone, Glucagon-Like Peptide 1
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