Cortistatin-8 features a compact peptide containing diverse residues that shape folding, binding, and conformational transitions. Aromatic and charged motifs promote structured interaction patterns. Researchers explore its stability and receptor-associated behavior. Uses include motif characterization, structural modeling, and peptide engineering.
CAT No: R2484
CAS No:485803-62-1
Synonyms/Alias:CORTISTATIN-8;(4R,7S,10S,13R,16S,19R)-10-(4-aminobutyl)-16-benzyl-N-[(2S)-1,6-diamino-1-oxohexan-2-yl]-7-[(1R)-1-hydroxyethyl]-13-(1H-indol-3-ylmethyl)-6,9,12,15,18-pentaoxo-19-[[(2S)-pyrrolidine-2-carbonyl]amino]-1,2-dithia-5,8,11,14,17-pentazacycloicosane-4-carboxamide;485803-62-1;HY-P1139;AKOS024457392;PD079538;CS-0028064;(4R,7S,10S,13R,16S,19R)-13-((1H-indol-3-yl)methyl)-10-(4-aminobutyl)-16-benzyl-N-((S)-1,6-diamino-1-oxohexan-2-yl)-7-((R)-1-hydroxyethyl)-6,9,12,15,18-pentaoxo-19-((S)-pyrrolidine-2-carboxamido)-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carboxam;
Cortistatin-8 is a synthetic peptide fragment derived from the neuropeptide cortistatin, which is structurally related to somatostatin but exhibits distinct biological activities. As a member of the cortistatin family, Cortistatin-8 is recognized for its unique ability to bind to both somatostatin receptors and additional molecular targets, thereby modulating a broad spectrum of physiological processes. Its sequence confers enhanced stability and receptor affinity, making it a valuable research tool in the exploration of neuroendocrine signaling, immune modulation, and peptide-receptor interactions. Researchers utilize this peptide to dissect the nuanced roles of cortistatin analogs in various cellular and molecular contexts, enabling a deeper understanding of neuropeptide function and its implications for health and disease.
Neuroendocrine Signaling Studies: In the realm of neuroendocrinology, Cortistatin-8 serves as a powerful probe to elucidate the mechanisms underlying neuropeptide signaling pathways. By mimicking endogenous cortistatin activity, this peptide allows researchers to investigate receptor binding dynamics, downstream signaling cascades, and the modulation of neurotransmitter release in neuronal and endocrine tissues. Its use in in vitro and ex vivo systems provides critical insights into the regulation of hormone secretion, synaptic transmission, and neuronal excitability, contributing to the broader understanding of brain-gut axis communication and neuroendocrine regulation.
Immunological Research: Cortistatin-8 is increasingly employed in immunological studies due to its modulatory effects on immune cell function. Experimental data suggest that this peptide can influence cytokine production, lymphocyte proliferation, and the activity of macrophages and dendritic cells. By incorporating it into cell culture assays or animal models, scientists can dissect the molecular mechanisms by which cortistatin analogs regulate immune responses, including anti-inflammatory pathways and the resolution of immune-mediated tissue damage. Such investigations are pivotal for unraveling the complex interplay between the nervous and immune systems.
Peptide-Receptor Interaction Analysis: The distinct receptor profile of Cortistatin-8 makes it a valuable tool for mapping peptide-receptor interactions. Researchers leverage its high affinity for somatostatin receptors, as well as its ability to engage non-canonical binding partners, to study receptor subtype selectivity, ligand-receptor binding kinetics, and receptor-mediated signal transduction. These studies facilitate the identification of novel receptor targets and the development of selective ligands, informing the design of next-generation neuropeptide-based research tools and therapeutic candidates.
Pharmacological Profiling: In pharmacological research, Cortistatin-8 is utilized to evaluate the efficacy, potency, and selectivity of neuropeptide analogs. It serves as a reference compound in competitive binding assays, functional bioassays, and receptor desensitization experiments. By assessing its pharmacodynamic and pharmacokinetic properties, scientists can benchmark the activity of novel cortistatin derivatives and optimize peptide design for experimental applications. Such profiling is essential for advancing the understanding of neuropeptide pharmacology and for guiding the rational development of peptide-based agents.
Neuroprotective Mechanism Exploration: Researchers interested in neuroprotection employ Cortistatin-8 to investigate its potential to modulate neuronal survival and resilience under stress conditions. Experimental evidence suggests that cortistatin analogs may exert protective effects against excitotoxicity, oxidative stress, and inflammatory insults in neuronal cultures and animal models. By elucidating the underlying signaling pathways and molecular mediators, these studies contribute to the broader field of neurobiology and offer valuable insights into the maintenance of neural homeostasis.
In summary, Cortistatin-8 stands out as a versatile and scientifically valuable peptide for applications across neuroendocrine, immunological, pharmacological, and neurobiological research domains. Its unique structural and functional attributes facilitate advanced studies of peptide-receptor interactions, signal transduction, and cellular responses in diverse experimental systems. By enabling precise modulation and analysis of neuropeptide activity, it continues to support groundbreaking research aimed at unraveling the complexities of intercellular communication and physiological regulation.
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