The discovery of glucagon-like peptide 1 |
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Authors: | Lund P Kay |
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Institution: | Department of Cell and Molecular Physiology, Nutrition and Center for Gastrointestinal, Biology and Disease, The University of North Carolina at Chapel Hill, North Carolina 27599-7545, USA. empk@med.unc.edu |
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Abstract: | The discovery of glucagon-like peptide 1 (GLP-1) began more than two decades ago with the observations that anglerfish islet proglucagon messenger RNAs (mRNAs) contained coding sequences for two glucagon-related peptides arranged in tandem. Subsequent analyses revealed that mammalian proglucagon mRNAs encoded a precursor containing the sequence of pancreatic glucagon, intestinal glicentin and two glucagon-related peptides termed GLP-1 and GLP-2. Multidisciplinary approaches were then required to define the structure of biologically active GLP-1 7-36 amide and its role as an incretin, satiety hormone and, most recently, a neuroprotective peptide. This historial perspective outlines the use of traditional recombinant DNA approaches to derive the GLP-1 sequence and highlights the challenges and combination of clinical and basic science approaches required to define the physiology and pathophysiology of bioactive peptides discovered through genomics. |
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