摘要:
Provided herein are glucagon superfamily peptides conjugated with GPCR ligands that are capable of acting at a G protein-coupled receptor. Also provided herein are pharmaceutical compositions and kits of the conjugates of the invention. Further provided herein are methods of treating a disease, e.g., a metabolic disorder, such as diabetes and obesity, comprising administering the conjugates of the invention.
摘要:
Glucagon peptides that exhibit GIP agonist activity in addition to glucagon and/or GLP-I activity are provided. Pharmaceutical compositions comprising such glucagon peptides and therapeutic methods of using such peptides are also provided.
摘要:
Glucagon antagonists are provided which comprise amino acid substitutions and/or chemical modifications to glucagon sequence. In one embodiment, the glucagon antagonists comprise a native glucagon peptide that has been modified by the deletion of the first two to five amino acid residues from the N-terminus and (i) an amino acid substitution at position 9 (according to the numbering of native glucagon) or (ii) substitution of the Phe at position 6 (according to the numbering of native glucagon) with phenyl lactic acid (PLA). In another embodiment, the glucagon antagonists comprise the structure A-B-C as described herein, wherein A is PLA, an oxy derivative thereof, or a peptide of 2-6 amino acids in which two consecutive amino acids of the peptide are linked via an ester or ether bond.
摘要:
Prodrug formulations of bioactive polypeptides are provided wherein the bioactive polypeptide has been modified by the linkage of a dipeptide to the bioactive polypeptide through an ester linkage. The prodrugs disclosed herein in some embodiments have extended half lives of at least 1.5 hours (e.g., at least 10 hours), and more typically greater than 20 hours and less than 70 hours, and are converted to the active form at physiological conditions through a non-enzymatic reaction driven by chemical instability.
摘要:
Modified glucagon peptides are disclosed having enhanced potency at the glucagon receptor relative to native glucagon. Further modification of the glucagon peptides by forming lactam bridges or the substitution of the terminal carboxylic acid with an amide group produces peptides exhibiting glucagon/GLP-1 receptor co-agonist activity. The solubility and stability of these high potency glucagon analogs can be further improved by modification of the polypeptides by pegylation, substitution of carboxy terminal amino acids, or the addition of a carboxy terminal peptide selected from the group consisting of SEQ ID NO: 26 (GPSSGAPPPS), SEQ ID NO: 27 (K-RNRNNIA) and SEQ ID NO: 28 (KRNR).
摘要翻译:公开了相对于天然胰高血糖素在胰高血糖素受体上具有增强的效力的改良的胰高血糖素肽。 通过形成内酰胺桥或用酰胺基取代末端羧酸对胰高血糖素肽进一步修饰产生显示胰高血糖素/ GLP-1受体共激动剂活性的肽。 这些高效胰高血糖素类似物的溶解度和稳定性可以通过聚乙二醇化,多肽羧基末端氨基酸的取代或加入选自SEQ ID NO:26(GPSSGAPPPS ),SEQ ID NO:27(K-RNRNNIA)和SEQ ID NO:28(KRNR)。
摘要:
Methods are provided for administering an extended half-life GLP-1/GIP coagonist peptide to a patient in need thereof for reducing weight gain, inducing weight loss, treating hyperglycemia, reducing blood glucose levels, or normalizing blood glucose levels in said patient.