Aggregated from the cited literature below. We summarize sources — we don't author claims.
Calcitonin is a member of the calcitonin/intermedin (calcitonin/CGRP) family of type II GPCR-signaling peptides, characterized by a conserved N-terminal disulfide-bridged ring. Research has also described related calcitonin-family peptides (including CGRP, adrenomedullin, and amylin) as having homologous structural features and overlapping biological actions, with distinct receptors identified as part of a G-protein-coupled receptor family. In addition, calcitonin has been investigated for formulation and analytical characterization (including oral preparations and peptide mapping/sequence characterization of calcitonin salmon injection products).
Mechanism (as reported)
Research described calcitonin-family peptides as signaling through type II GPCRs, with calcitonin receptor subtypes and related receptor interactions discussed as part of a GPCR family. Structural studies/reviews reported a conserved N-terminal disulfide-bridged ring and amidated C-termini among homologous related peptides (calcitonin, CGRP, adrenomedullin, amylin).
Key findings (each cites a source)
A study/review reported that calcitonin, calcitonin gene-related peptide (CGRP), adrenomedullin, and amylin are structurally related homologous peptides with N-terminal 6–7 amino acid ring structures linked by a disulfide bridge and with amidated C-termini, and that calcitonin receptor structures and subtypes have been identified via molecular cloning. [PMID 7627335]
A study/review reported cross-reaction and overlapping biological actions among receptors for calcitonin, CGRP, adrenomedullin, and amylin, suggesting these receptors belong to a family of G-protein-coupled receptors including those of parathyroid hormone, secretin, and vasointestinal peptide. [PMID 7627335]
A review reported that calcitonin-derived peptide carrier sequences (derived from human calcitonin) can translocate different bioactive molecules across cellular membranes, and described development from full-length hormone (noted in the review context as therapeutic nasal administration) through N-terminally truncated fragments to branched carrier peptides. [PMID 18160173]
A review reported that calcitonin receptor-stimulating peptide (CRSP) shows high sequence identity with CGRP but distinct biological properties, and categorized CT/CGRP/CRSP peptides into a family based on evolutionary and genomic organization comparisons. [PMID 19540291]
A review reported that CRSP genes were identified in mammals such as pigs and dogs of Laurasiatheria, but not in primates and rodents of Euarchontoglires, with multiple CT/CGRP/CRSP family gene copies suggested across placental mammal lineages. [PMID 19540291]
An article reported that calcitonin was originally identified and isolated from teleosts and that calcitonin/intermedin family peptides share a conserved N-terminal disulfide-bridged ring structure and signal through type II GPCRs, with three unique receptor activity-modifying proteins noted in that report. [PMID 15476930]
The same article reported identification of a novel calcitonin/CGRP family peptide named intermedin and provided comparative discussion of calcitonin-family peptide gene evolution across vertebrate genomes, including human gene paralogs and teleost genome copies. [PMID 15476930]
A paper described development and evaluation of oral calcitonin formulations and reported that an oral preparation combining the active peptide hormone with a caprylic acid derivative was developed to enhance bioavailability; it also reported ongoing clinical trials in osteoarthritis and that a phase 3 study did not demonstrate significant vertebral fracture reduction, with the clinical program for osteoporosis under review. [PMID 22281725]
A methods paper reported a high-throughput UHPLC-HRMS-based workflow for peptide mapping and amino acid sequencing for Calcitonin Salmon injection, including addressing challenges from phenol in the product matrix and achieving 100% protein coverage with automated b/y ion annotation and identifications based on MS/MS spectra. [PMID 38479303]
A review reported structural and biological properties of three calcitonin receptor-stimulating peptides (CRSP-1, CRSP-2, CRSP-3), including that CRSP-1 is described as a specific ligand for the calcitonin (CT) receptor and is expressed/synthesized mainly in the CNS, pituitary, and thyroid gland, with discussion of in vivo effects on plasma calcium concentration in rats. [PMID 15501538]
Independent test grades
No independent third-party test data is available for Calcitonin yet. Our test grades are aggregated from Finnrick, which independently tests a subset of research peptides — many approved drugs and newer or niche compounds aren't covered.
Research literature (11)
Consolidated from PubMed — each links to the original record.
Thompson JC, Marx M · Current problems in surgery · 1984 · PMID 6202464
FAQ
What is Calcitonin?
Calcitonin (Calcitonin, human, for bioassay, Throcalcitonin, salcatonin (salmon) is classified under bone & mineral peptides, an FDA-approved drug. Research goals associated with it include bone & mineral density.
Is Calcitonin FDA-approved?
Yes — Calcitonin is approved by the FDA (marketed as Calcitonin, human, for bioassay, Throcalcitonin).
What does the research on Calcitonin say?
peptideone aggregates 11 references from PubMed for Calcitonin. The summary on this page digests them with citations; we summarize sources and make no efficacy claims.