ArticleMolecular metabolism2023
Effects of a long-acting secretin peptide analog alone and in combination with a GLP-1R agonist in a diet-induced obesity mouse model.
Article in Molecular metabolism, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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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.
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Who cites it
1 citing paper in PubMed, 8 citations in OpenAlex.
- Greater early postprandial GLP-1 increase after Roux-en-Y than one-anastomosis gastric bypass, with unchanged secretin: a randomized controlled trial.International journal of obesity (2005) · 2026Trial
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveObesity is a major global health problem which can be targeted with new mechanistic diverse pharmacological interventions. Here we evaluate a new long-acting secretin receptor agonist as a potential treatment for obesity.
methodsBI-3434 was designed as a secretin analog with stabilized peptide backbone and attached fatty acid-based half-life extension group. The peptide was evaluated in vitro for its ability to stimulate cAMP accumulation in a cell line stably expressing recombinant secretin receptor. On the functional level, stimulation of lipolysis in primary adipocytes after treatment with BI-3434 was determined. The ability of BI-3434 to activate secretin receptor in vivo was assessed in a cAMP reporter CRE-Luc mouse model. Furthermore, a diet-induced obesity mouse model was used to test the effects of BI-3434 on body weight and food intake following repeated daily subcutaneous administration alone and in combination with a GLP-1R agonist.
resultsBI-3434 potently activated human secretin receptor. However, lipolysis was only weakly induced in primary murine adipocytes. BI-3434 had an extended half-life compared to endogenous secretin and activated target tissues like pancreas, adipose tissue, and stomach in vivo. BI-3434 did not lower food intake in lean or diet-induced obese mice, but it increased energy expenditure after daily administration. This led to a loss of fat mass, which did not translate in a significant effect on body weight. However, treatment in combination with a GLP-1R agonist led to a synergistic effect on body weight loss.
conclusionsBI-3434 is a highly potent and selective agonist of secretin receptor with an extended pharmacokinetic (PK) profile. Increased energy expenditure after daily treatment with BI-3434 suggests that secretin receptor is involved in metabolic regulation and energy homeostasis. Targeting secretin receptor alone may not be an efficient anti-obesity treatment, but could be combined with anorectic principles like GLP-1R agonists.
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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 Socratic graph.