rgdfk peptide peptide - revox-serum-peptide RGDfK peptide Understanding the RGDfK Peptide: A Powerful Tool in Biomedical Research and Therapeutics

peptide-bonds-are-an-example-of-what-type-of-bonding The RGDfK peptide, a cyclic peptide sequence, has emerged as a significant molecule in various biomedical applications, particularly in the realms of cancer research, targeted drug delivery, and tissue engineering. This peptide is characterized by its specific binding affinity to integrins, a class of cell surface receptors crucial for cell adhesion, migration, and proliferation. The RGDfK motif, comprised of Arginine (R), Glycine (G), Aspartic acid (D), D-Phenylalanine (f), and Lysine (K), plays a pivotal role in this interaction.Cyclo (RGDfK) (CAS 161552-03-0)

The Science Behind RGDfK Peptide's Efficacy

The fundamental mechanism driving the utility of the RGDfK peptide lies in its potent and selective inhibition of integrins, most notably the αvβ3 integrin.c(RGDfK) | C27H41N9O7 | CID 22134127 - PubChem - NIH This integrin is frequently overexpressed on the surface of tumor cells and neovascular blood vessels, making it an attractive target for therapeutic interventions. Studies have demonstrated that Cyclo(-RGDfK) exhibits a remarkable IC50 of 0.94 nM for αvβ3 integrin, highlighting its high affinity and specificity. Furthermore, the cyclic nature of the RGDfK peptide enhances its protease resistance and stability in aqueous solutions, contributing to its sustained biological activity.

The RGDfK peptide is not merely a standalone entity; it can be modified and integrated into various platforms to enhance its therapeutic potential. For instance, it has been successfully conjugated to DOTA (1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid) for radiolabeling, enabling molecular imaging of breast cancer and other malignanciesNotably, the use of PNP3OH allows the labeling of thepeptideat room temperature without significantly reducing the labeling efficiency or stability of the .... The ability to label the peptide with 125I or 99mTc allows for precise visualization and quantification of tumor sites in vivo.Small molecules & peptides - Products Research has also explored the synthesis of monomeric, dimeric, and tetrameric c[RGDfK] dendrimers, showcasing the versatility in creating multivalent constructs with potentially amplified therapeutic effects.Molecular Imaging of Breast Cancer: Role of RGD Peptides

Applications in Cancer Research and Therapy

The overexpression of αvβ3 integrin on tumor vasculature makes RGDfK peptide-based strategies highly promising for targeting tumor cells and their supporting blood supply. The RGDfK peptide can be utilized to deliver therapeutic agents directly to the tumor microenvironment, thereby minimizing systemic toxicityCyclicRGDFK peptide. Storage. Store lyophilized at -20ºC, keep desiccated. In lyophilized form, the chemical is stable for 36 months. In solution, store at .... This targeted approach is a cornerstone of modern cancer treatment, aiming to improve efficacy while reducing side effects.

Beyond direct therapeutic delivery, RGDfK peptide plays a crucial role in cancer targeting. Its ability to bind specifically to receptors on neovascular blood vessels of various human cancers has been extensively documented. This characteristic makes it an invaluable tool for diagnostic imaging, allowing for early detection and precise staging of the disease. The molecular imaging of breast cancer using RGD peptides is a testament to their diagnostic capabilities.

Advancements in Tissue Engineering and Cell Adhesion

The role of RGDfK peptide extends beyond oncology. In tissue engineering, peptide-based ECM mimics are employed to improve cellular interactions with biomaterials. The Cyclo(RGDfK) peptide has been shown to enhance human pluripotent stem cell (hPSC) adhesion and proliferation on synthetic surfaces, paving the way for more effective regenerative medicine applications. For instance, Cyclo(RGDfK) peptide functionalized polymeric nanocarriers are being developed for targeted delivery and improved cellular interactions.

The formation of precise molecular gradients of cyclicRGDfK peptide patches on substrates, achieved through modified substrate dip-coating processes, further underscores its utility in controlling cell behavior and promoting specific cellular responsesUse DiagNano™ NOTA-c(RGDfK)PeptideConjugated CdSSe/ZnS Quantum Dots, 610 nm for fast, easy, and consistent DNA/RNA Purification, Antibody/Protein .... This is critical for creating environments that mimic the natural extracellular matrix, thereby facilitating tissue regeneration.

Synthesis and Chemical Properties

The synthesis of RGDfK peptide typically involves solid-phase peptide synthesis (SPPS) techniques. The original synthesis of cRGDfK employed Fmoc (9-fluorenylmethyloxycarbonyl) solid-phase chemistry.Cyclo(RGDfK). Write a review to earn BioPoints. The cyclic pentapeptide cyclo ...PeptideServices;PeptideOverview ·PeptideManufacture · CustomPeptide... The resulting linear, protected RGDfK peptide is then cleaved from the solid resin. The cyclic structure is formed through cyclization, often achieved on a solid support or in solution. The molecular formula of c(RGDfK) is C27H41N9O7, with a molecular weight of approximately 603.7 g/mol.Cyclo (-RGDfK) | αvβ3 integrin inhibitor | Buy from Supplier ... The CAS number for c(RGDfK) is 161552-03-0.

The RGDfK peptide is generally stored lyophilized at -20°C and kept desiccated to maintain its stability. In lyophilized form, it can remain stable for up to 36 months. In solution, its stability is reduced, necessitating appropriate storage conditions.CAS 161552-03-0 c(RGDfK) - BOC ...

Future Directions and Ongoing Research

The ongoing research into RGDfK peptide and its derivatives continues to push the boundaries of biomedical innovation. Studies are exploring the structure-activity relationships of RGD-containing peptides to optimize their binding affinity and therapeutic efficacy.c(RGDfK) | C27H41N9O7 | CID 22134127 - PubChem - NIH The development of novel RGD peptide conjugates, such as those utilizing PEG4-c(RGDfK), aims to improve pharmacokinetic profiles and enhance targeting capabilities.

The exploration of self-assembled nanoparticles based on the c(RGDfk) motif offers a promising avenue for developing biodegradable, tumor-targeted drug delivery systems. As our understanding of integrin biology and peptide chemistry deepens, the RGDfK peptide is poised to play an even more critical role in the development of next-generation diagnostics and therapeutics.