Neuropeptide W-23(human), the active form of Neuropeptide W, is an endogenous ligand for NPBW1 and NPBW2.
Neuropeptide W-23 (human) is a bioactive peptide belonging to the neuropeptide W family, which is characterized by its role as an endogenous ligand for the G protein-coupled receptor GPR7 (also known as NPBWR1). Structurally, it is a 23-amino acid peptide derived from the prepro-neuropeptide W precursor, and it is found predominantly in the central nervous system, particularly in brain regions associated with neuroendocrine regulation. Its physiological significance stems from its involvement in modulating diverse neuronal signaling pathways, making it an important molecular tool for elucidating peptide-receptor interactions, neuroendocrine mechanisms, and peptide-mediated modulation of physiological processes. As a research-use-only compound, Neuropeptide W-23 (human) is highly valued for its specificity and relevance in studies exploring the functional roles of neuropeptides in mammalian systems.
Receptor pharmacology: Neuropeptide W-23 serves as a reference ligand for the study of GPR7/NPBWR1 receptor pharmacology. Researchers utilize it to characterize receptor binding affinities, signal transduction pathways, and agonist-induced intracellular responses. By applying this peptide in receptor assays, investigators can dissect the molecular mechanisms underlying GPCR activation, assess receptor selectivity, and evaluate the functional consequences of receptor-ligand interactions in neuronal and heterologous expression systems.
Neuroendocrine signaling research: The peptide is instrumental in exploring the regulatory circuits involved in neuroendocrine signaling. Its application in in vitro and ex vivo preparations enables the investigation of hypothalamic-pituitary axis modulation, stress response pathways, and the central regulation of feeding behavior. By leveraging its activity, scientists can delineate the downstream signaling cascades and gene expression profiles triggered by neuropeptide W family members, contributing to a more nuanced understanding of neuropeptide-mediated homeostatic control.
Functional studies of neuronal circuits: Neuropeptide W-23 is frequently employed in functional studies aimed at mapping neuropeptide-responsive neuronal circuits within the brain. Through microinjection, perfusion, or bath application in brain slice models, it is possible to monitor changes in neuronal excitability, synaptic transmission, and network oscillations. These approaches facilitate the identification of neural substrates responsive to neuropeptide W signaling and allow for the dissection of peptide-driven modulation of specific neuronal populations.
Peptide structure-activity relationship (SAR) analysis: As a well-defined peptide ligand, Neuropeptide W-23 provides an essential template for structure-activity relationship investigations. Researchers can use the native sequence to generate systematic analogs or truncated variants, enabling the mapping of critical residues responsible for receptor binding and activation. SAR studies using this peptide support the rational design of novel peptide ligands, antagonists, or modulators with tailored pharmacological profiles for experimental applications.
Analytical method development: The unique sequence and bioactivity of Neuropeptide W-23 make it a valuable standard for the development and validation of analytical techniques such as mass spectrometry, HPLC, and immunoassays. By serving as a reference compound, it aids in the quantification, detection, and characterization of endogenous neuropeptides in complex biological samples. Analytical method development using this peptide enhances the accuracy and reproducibility of neuropeptidomic studies, supporting broader efforts to profile neuropeptide expression and function in mammalian tissues.
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