CTTHWGFTLC, CYCLIC is a cyclic peptide inhibitor for matrix metalloproteinases MMP-2 and MMP-9.
CTTHWGFTLC, cyclic, is a synthetic peptide characterized by its unique disulfide-bridged cyclic structure, which confers enhanced stability and distinct biochemical properties compared to its linear counterparts. As a member of the peptide family, this sequence is derived from a fragment of connective tissue growth factor (CTGF) and is widely recognized for its ability to interact with integrins, particularly integrin αvβ3. Its structural features and bioactive motif make it an important tool for researchers investigating cell adhesion, migration, and signaling pathways in various physiological and pathological contexts. The cyclic conformation not only improves resistance to enzymatic degradation but also enhances receptor specificity, making it highly valuable for a range of biochemical and cell biology studies.
Integrin binding studies: The cyclic peptide CTTHWGFTLC is extensively utilized in research focused on integrin-mediated cellular processes. Its high affinity and selectivity for integrin αvβ3 enable precise interrogation of cell-surface receptor interactions, supporting investigations into mechanisms of cell adhesion, migration, and signal transduction. By serving as a competitive ligand, it allows for the dissection of integrin-dependent pathways in both normal and pathological cell systems, providing insight into the molecular basis of cell-extracellular matrix interactions.
Angiogenesis assays: Due to its ability to modulate integrin function, this cyclic peptide is frequently applied in in vitro and in vivo models of angiogenesis. Researchers employ it to assess the regulatory roles of integrins in new blood vessel formation, particularly in the context of tumor biology and tissue regeneration. Its application in endothelial cell migration and tube formation assays helps elucidate the contribution of integrin signaling to vascular development and remodeling processes.
Peptide-protein interaction mapping: The structural stability and defined bioactive motif of CTTHWGFTLC make it a valuable probe in studies aimed at mapping protein-protein interactions. By incorporating the peptide into binding assays, researchers can identify and characterize novel interaction partners of integrin αvβ3 and related receptors. This approach aids in the discovery of downstream signaling molecules and cofactors involved in integrin-mediated pathways, expanding the understanding of cellular communication networks.
Peptide-based inhibitor development: The cyclic nature and integrin-targeting capabilities of this peptide have positioned it as a model scaffold for the development of peptide-based inhibitors. Researchers exploit its sequence to design analogs and derivatives that modulate integrin activity, facilitating the exploration of structure-activity relationships and the optimization of peptide therapeutics for research purposes. Such studies contribute to the advancement of targeted molecular tools for probing integrin function in biochemical and cellular assays.
Imaging and labeling applications: CTTHWGFTLC is also employed as a targeting moiety in imaging and labeling strategies. Its strong and selective binding to integrin αvβ3 allows for the conjugation of fluorescent dyes, radiolabels, or other reporter groups, enabling visualization and quantification of integrin expression on cell surfaces. These applications are particularly valuable in the context of molecular imaging, cell tracking, and receptor localization studies, supporting the development of innovative research methodologies in cell biology and molecular diagnostics.
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