Cell-adhesion Peptides

Cyclo(-RGDfK) is a potent and selective inhibitor of the αvβ3 integrin, with an IC₅₀ of 0.94 nM. Cyclo(-RGDfK) potently targets tumor microvasculature and cancer cells through the specific binding to the αvβ3 integrin on the cell surface.

RGD is a tripeptide that effectively triggers cell adhesion, addresses certain cell lines and elicits specific cell responses; binds to integrins.

RGD peptide (GRGDNP) is an inhibitor of integrin-ligand interactions. RGD peptide (GRGDNP) competitively inhibits α5β1 binding with extracellular matrice (ECM). RGD peptide (GRGDNP) promotes apoptosis through activation of conformation changes that enhance pro-caspase-3 activation and autoprocessing. RGD peptide (GRGDNP) plays an important role in cell adhesion, migration, growth, and differentiation.

Cyclo(Arg-Gly-Asp-D-Phe-Cys) (Cyclo RGDfC), a cyclic RGD peptide which has high affinity to αvβ3, can disrupt cell integrin interactions. Cyclo(Arg-Gly-Asp-D-Phe-Cys) inhibits pluripotent marker expression in embryonic stem cells (ESCs) and the tumorigenic potential of mESCs in vivo. Cyclo(Arg-Gly-Asp-D-Phe-Cys) can be used in the research of tumors.

Arg-Gly-Asp-Ser is an integrin binding sequence that inhibits integrin receptor function. Arg-Gly-Asp-Ser directly and specifically bind pro-caspase-8, pro-caspase-9 and pro-caspase-3, while it does not bind pro-caspase-1.

IKVAVC is a derivative peptide of IKVAV with an artificially added cysteine (Cys) at its C-terminus. IKVAVC retains all the biological activities of the original IKVAV, mainly acting as a neural adhesion/differentiation signaling peptide, and is equipped with an engineered linker arm that enables covalent conjugation to molecular materials. IKVAV inhibits the migration and activation of fibroblasts, downregulates the TGF-β1 signaling pathway and endoplasmic reticulum stress, and promotes nerve repair. IKVAV regulates the phenotype of macrophages, shifting them from the pro-inflammatory M1 type to the pro-reparative M2 type.

KAFDITYVRLKF is a selective, competitive integrin α_vβ₃ binder. KAFDITYVRLKF induces the production of MMP-9. KAFDITYVRLKF blocks monocyte migration, promotes melanoma cell migration, protects neurons, and improves motor and cognitive functions. KAFDITYVRLKF can be used in research related to melanoma and Parkinson's disease.

AG73 is a polypeptide. AG73 is derived from the G domain of the Laminin α1 chain. AG73 binds heparin, Syndecan-1 and Syndecan-4. AG73 promotes the adhesion of various cells, induces the differentiation of salivary gland acinar cells, stimulates neurite outgrowth, secretion of matrix metalloproteinases and angiogenesis. AG73 retains its angiogenic activity when conjugated to chitosan membranes. AG73 can be used in the research of melanoma and ischemic injury.

iRGD peptide is a 9-amino acid cyclic peptide, triggers tissue penetration of agents by first binding to αv-integrins, then proteolytically cleaved in the tumor to produce CRGDK/R to interact with neuropilin-1, and has tumor-targeting and tumor-penetrating properties.

GRGDSP, a synthetic linear RGD peptide, is an integrin inhibitor.

Laminin peptide CDPGYIGSR TFA (Laminin (925-933) TFA) is a peptide fragment derived from the laminin B1 chain that binds to laminin receptors, and acts as a ligand for the laminin receptor. Laminin peptide CDPGYIGSR TFA mediates cell spreading, induces the clustering of receptors with vinculin and α-actinin, regulates the actin cytoskeleton, promotes the formation of stress fibers, and enhances epithelial cell adhesion. Laminin peptide CDPGYIGSR TFA can be used in studies related to tumor metastasis and nerve injury.

Cyclo(-RGDfK) TFA is a potent and selective inhibitor of the α_vβ₃ integrin, with an IC₅₀ of 0.94 nM. Cyclo(-RGDfK) TFA potently targets tumor microvasculature and cancer cells through the specific binding to the αvβ3 integrin on the cell surface.

Gly-Arg-Gly-Asp-Ser (GRGDS) is a pentapeptide that forms the cell-binding domain of a glycoprotein, osteopontin. Gly-Arg-Gly-Asp-Ser binds to integrin receptors αvβ3 and αvβ5 with estimated IC₅₀ of ～5 and ～6.5 μM

GRGDSPK (EMD 56574) is a peptide incluing Arg-Gly-Asp (RGD). GRGDSPK (EMD 56574) is an competitive and reversible inhibitory peptide for inhibiting integrin-fibronectin binding. GRGDSPK is used to study the role of integrins in bone formation and resorption.

RGD peptide (GRGDNP) TFA is an inhibitor of integrin-ligand interactions. RGD peptide (GRGDNP) TFA competitively inhibits α5β1 binding with extracellular matrice (ECM). RGD peptide (GRGDNP) TFA promotes apoptosis through activation of conformation changes that enhance pro-caspase-3 activation and autoprocessing. RGD peptide (GRGDNP) TFA plays an important role in cell adhesion, migration, growth, and differentiation.

Poly-L-lysine (hydrobromide) (MW 70000-150000), a positively charged amino acid polymer, is a nonspecific attachment factor for cells. Poly-L-lysine (hydrobromide) (MW 70000-150000) has good biocompatibility. Poly-L-lysine (hydrobromide) (MW 70000-150000) is used to increase cell adhesion to solid substrates by enhancing electrostatic interaction between negatively charged ions of the cell membrane and the culture surface.

H-Ile-Lys-Val-Ala-Val-OH is one of the most potent active sites of laminin-1. H-Ile-Lys-Val-Ala-Val-OH promotes cell adhesion, neurite outgrowth, and tumor growth. H-Ile-Lys-Val-Ala-Val-OH stimulates BMMSC population growth and proliferation by activating MAPK/ERK1/2 and PI3K/Akt signalling pathways.

Obtustatin is a non-RGD disintegrin consisting of 41 residues. Obtustatin inhibits the adhesion of α1β1 integrin to type IV Collagen (HY-NP003), blocks α1β1 integrin signaling in endothelial cells, and suppresses FGF2-induced angiogenesis. Obtustatin inhibits tumor progression in mouse models and upregulates VEGF expression in sarcoma-bearing mice. Obtustatin can be used in research related to Lewis lung carcinoma and S-180 sarcoma.

REDV is the minimal active sequence within the CS5 site of the alternatively spliced type III connecting segment (IIICS) region of fibronectin. REDV can mediate adhesion to the IIICS region of plasma fibronectin by binding the integrin alpha 4 beta 1(α4β1). REDV can be used for the research of cell adhesion. REDV is used to study the effects of gene vectors containing REDV on cells.

YIGSR (Laminin Fragment 929-933) is a polypeptide that inhibits tumor growth and metastasis of leukemia cells. YIGSR specifically binds to the 67kDa laminin receptor and regulates the expression of eNOS in endothelial cells. YIGSR can be used in leukemia-related research.