Abstract: Variant peptides of calcitonin gene-related peptide alpha (?CGRP), calcitonin gene-related peptide beta (?CGRP), and adrenomedullin (AM) are disclosed, wherein the variant peptides have high binding affinity and agonistic or antagonistic activity for at least one receptor complex of CLR:RAMP1, CLR:RAMP2, and CLR:RAMP3. Also disclosed are methods of use of the variant peptides in therapeutic treatments.

Abstract: Variant peptides of calcitonin gene-related peptide alpha (?CGRP), calcitonin gene-related peptide beta (?CGRP), and adrenomedullin (AM) are disclosed, wherein the variant peptides have high binding affinity and agonistic or antagonistic activity for at least one receptor complex of CLR:RAMP1, CLR:RAMP2, and CLR:RAMP3. Also disclosed are methods of use of the variant peptides in therapeutic treatments.

Abstract: Variant peptides of calcitonin gene-related peptide alpha (?CGRP), calcitonin gene-related peptide beta (?CGRP), and adrenomedullin (AM) are disclosed, wherein the variant peptides have high binding affinity and agonistic or antagonistic activity for at least one receptor complex of CLR:RAMP1, CLR:RAMP2, and CLR:RAMP3. Also disclosed are methods of use of the variant peptides in therapeutic treatments.

Abstract: Variant peptides of calcitonin gene-related peptide alpha (?CGRP), calcitonin gene-related peptide beta (?CGRP), and adrenomedullin (AM) are disclosed, wherein the variant peptides have high binding affinity and agonistic or antagonistic activity for at least one receptor complex of CLR:RAMP1, CLR:RAMP2, and CLR:RAMP3. Also disclosed are methods of use of the variant peptides in therapeutic treatments.

Abstract: R-spondin variants comprising a ZNRF3 binding region of a first R-spondin and an LGR4 binding region of a second R-spondin are disclosed. Cell culture media and compositions containing the R-spondin variants, as well as methods of their use, are also disclosed.

Abstract: R-spondin variants comprising a ZNRF3 binding region of a first R-spondin and an LGR4 binding region of a second R-spondin are disclosed. Cell culture media and compositions containing the R-spondin variants, as well as methods of their use, are also disclosed.

Abstract: Provided herein are Parathyroid hormone (PTH) peptides and parathyroid hormone-related protein (PTHrP) peptides (e.g., PTH analogs, PTHrP analogs), and related variants, chemical derivatives, fusion polypeptides, multimeric polypeptides, and peptidomimetics, peptoids, the like. Also provided are their use in methods for activating the PTH receptor in a cell (e.g., an osteoblast), methods of treating a subject with bone loss (e.g., by administration of a PTH peptide or PTHrP peptide (e.g., a PTH analog or PTHrP analog)), methods of ameliorating a symptom associated with osteoporosis in a subject, methods of retarding the progression of osteoporosis in a subject, and methods of regenerating bone in a subject.

Abstract: Provided herein are Parathyroid hormone (PTH) peptides and parathyroid hormone-related protein (PTHrP) peptides (e.g., PTH analogs, PTHrP analogs), and related variants, chemical derivatives, fusion polypeptides, multimeric polypeptides, and peptidomimetics, peptoids, the like. Also provided are their use in methods for activating the PTH receptor in a cell (e.g., an osteoblast), methods of treating a subject with bone loss (e.g., by administration of a PTH peptide or PTHrP peptide (e.g., a PTH analog or PTHrP analog)), methods of ameliorating a symptom associated with osteoporosis in a subject, methods of retarding the progression of osteoporosis in a subject, and methods of regenerating bone in a subject.