Tirzepatide is a dual agonist of GIP and GLP-1 receptors, acting in an integrated way across incretin pathways.It increases insulin secretion in a glucose-dependent manner and improves glycaemic regulation (reducing peaks and variability)
Albert, the Lee and Harold Kapelovitz Distinguished Chair in Cardiology and chair of the Department of Cardiology in the Smidt Heart Institute at Cedars-Sinai
However, data are limited to preclinical studies
Surface functionalization of these nanocarriers with targeting ligands (e.g., folate, transferrin) further enhances their specificity, directing SFN to tumor tissues while minimizing systemic exposure (103)
More generally, doses of peptide-antibody fusions for testing in vivo stability of the GLP-1 activity were adjusted based on their human GLP-1R potency and material availability
Some of this was expected, since insulin is a vasodilator, but the ligand also spread more widely into hypothalamic tissue, suggesting insulin was actively promoting transport into the brain