A hallmark of the pancreatic hormone amylin is its high propensity toward the formation of amyloid fibrils, which makes it a challenging drug design effort. The amylin analogue pramlintide is commercially available for diabetes treatment as an adjunct to insulin therapy but requires three daily injections due to its short half-life. We report here the development of the stable, lipidated long-acting amylin analogue cagrilintide () and some of the structure-activity efforts that led to the selection of this analogue for clinical development with obesity as an indication. Cagrilintide is currently in clinical trial and has induced significant weight loss when dosed alone or in combination with the GLP-1 analogue semaglutide.
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http://dx.doi.org/10.1021/acs.jmedchem.1c00565 | DOI Listing |
Nat Commun
November 2024
Novo Nordisk Research Center Seattle, Inc., Seattle, WA, USA.
C-terminal α-amidated peptides are attractive therapeutic targets, but preparative methods to access amidated pharmaceuticals are limited both on lab and manufacturing-scale. Here we report a straightforward and scalable approach to the C-terminal α-amidation of peptides and proteins from cysteine-extended polypeptide precursors. This amidation protocol consists of three highly efficient steps: 1) selective cysteine thiol substitution with a photolabel, 2) photoinduced decarboxylative elimination and 3) enamide cleavage by simple acidolysis or inverse electron demand Diels-Alder reaction.
View Article and Find Full Text PDFArch Biochem Biophys
December 2024
Department of Medicinal Biotechnology, College of Health Science, Dong-A University, Busan, 49315, Republic of Korea. Electronic address:
The amylin peptide hormone receptor is the complex of the calcitonin peptide hormone receptor and an accessory protein. The calcitonin receptor activation controls calcium homeostasis, while it also functions as the main component of the amylin receptor. Amylin receptor activation in brains controls blood glucose and appetite.
View Article and Find Full Text PDFBiochimie
October 2024
Department of Veterinary Physiology, University of Zurich, Zurich, Switzerland. Electronic address:
Amylin is a peptide hormone co-released with insulin from pancreatic β-cells during a meal and primarily serves to promote satiation. While the caudal hindbrain was originally implicated as a major site of action in this regard, it is becoming increasingly clear that amylin recruits numerous central nervous system pathways to exert multifaceted effects on food intake. In this Review, we discuss the evidence derived from preclinical studies showing that amylin and the related peptide salmon calcitonin (sCT) directly or indirectly target genetically distinct neurons in the caudal hindbrain (nucleus tractus solitarius and area postrema), rostral hindbrain (lateral parabrachial nucleus), midbrain (lateral dorsal tegmentum and ventral tegmental area) and hypothalamus (arcuate nucleus and parasubthalamic nucleus) via activation of amylin and/or calcitonin receptors.
View Article and Find Full Text PDFExpert Rev Clin Pharmacol
September 2024
Diabetes Centre-Diabetic Foot Clinic, Second Department of Internal Medicine, Democritus University of Thrace, University Hospital of Alexandroupolis, Alexandroupolis, Greece.
Introduction: Obesity is a pandemic, linked with increased morbidity including diabetes mellitus (DM) and certain cancer types. Amylin is a major regulatory hormone for satiation and food intake perception in humans. Amylin analogs (pramlintide and cagrilintide) are emerging as promising anti-obesity agents in non-DM subjects.
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