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Cyclo(RGDyK)
本产品不向个人销售,仅用作科学研究,不用于任何人体实验及非科研性质的动物实验。
Cyclo(RGDyK)图片
包装与价格:
包装价格(元)
10mM (in 1mL DMSO)电议
5mg电议
10mg电议
25mg电议
50mg电议
100mg电议

产品介绍
Cyclo(RGDyK) 是一种有效的选择性 αVβ3 整合素抑制剂,IC50 为 20 nM。

Cell lines

B16-F10 cells and HUVEC

Preparation Method

Dil-loaded micellar formulations with different Cyclo(RGDyK) densities (0%, 10%, 20%) were incubated with B16-F10 cells or HUVEC in six-well plates for 3 h at 37°C at a final concentration of 0.5 ug/mL or 0.1 ug/mL Dil diluted in culture media, respectively. And the cells incubated with medium were used as negative controls. For the competition experiments, free Cyclo(RGDyK) (0.8 mM for B16-F10 and 1.6 µM for HUVEC) was pre-incubated with cells for 1 h, followed by continued co-incubation with Cyclo(RGDyK)-Dil-PM with 20% cRGDyK for 3 h. Then, cells were washed, trypsinized, and neutralized. After centrifugation at 1200 rpm for 5 min, cells were resuspended in PBS, followed by filtra

Reaction Conditions

0.8 mM for B16-F10 and 1.6 µM for HUVEC Cyclo(RGDyK) for 1 h

Applications

PEG-b-PLGA micelles without or with Cyclo(RGDyK) conjugation loaded with paclitaxel (PTX) or DiI were prepared and characterized. Drug-loaded micelles were stable in solution, with small diameters (<80 nm) and a low critical micelle concentration.

Animal models

C57BL/6 mice

Preparation Method

Forty 3-month old female C57BL/6 mic were randomly allocated into four groups: (1) Sham-operated (Sham); (2) ovariectomized; (3) Ovx plus 8-week downhill running exercise (Ex); (4) Ovx plus exercise and received twice weekly injection of Cyclo(RGDyK) protein (a putative anti-irisin receptor agents) (ExRg).

Dosage form

2.5 mg/kg Cyclo(RGDyK) twice a week(tail vein injection)

Applications

Cyclo(RGDyK) administration weakened the exercise-related improvement of vBMD, BV/TV, and ALP intensity in bone.

文献引用
产品描述

Cyclo(RGDyK) is a potent and selective αVβ3 integrin inhibitor with IC50 of 20 nM[1].

PEG-b-PLGA micelles without or with Cyclo(RGDyK) conjugation loaded with paclitaxel (PTX) or DiI were prepared and characterized. Drug-loaded micelles were stable in solution, with small diameters ([5].

A novel drug delivery system Cyclo(RGDyK) -modified Fe3O4 nanoparticles with high DOX load (R-DMP), which combines magnetic targeting, integrin alpha(v)beta3 targeting and high drug loading properties, was developed by chemical coupling both doxorubicin and peptide Cyclo(RGDyK)) on the synthetic dual function magnetic nanoparticles (DMP) using a multi-hand cross-linker poly-L-glutamic acid. D-DMP shows enhanced uptake by integrin alpha(v)beta3 targeting expressing tumor cells and displays stronger cancer cell cytotoxicity[2].

Cyclo(RGDyK) administration weakened the exercise-related improvement of vBMD, BV/TV, and ALP intensity in bone[4]. By blocking irisin receptor (αV/β5), Cyclo(RGDyK) could reduce irisin-induced signalings. When irisin pathways were blocked, some osteoblastogenic genes were decreased, which might contribute to the Cyclo(RGDyK) -induced reduction of osteogenic differentiation[3].

References:
[1]: Haubner R, Wester HJ, et,al. Glycosylated RGD-containing peptides: tracer for tumor targeting and angiogenesis imaging with improved biokinetics. J Nucl Med. 2001 Feb;42(2):326-36. PMID: 11216533.
[2]: Guo L, Ding W, et,al. The C(RgdyK)-conjugated Fe3O4 nanoparticles with high drug load for dual-targeting integrin alpha(v)beta3-expressing cancer cells. J Nanosci Nanotechnol. 2014 Jul;14(7):4858-64. doi: 10.1166/jnn.2014.8691. PMID: 24757954.
[3]: Kim H, Wrann CD, et,al. Irisin Mediates Effects on Bone and Fat via αV Integrin Receptors. Cell. 2018 Dec 13;175(7):1756-1768.e17. doi: 10.1016/j.cell.2018.10.025. Erratum in: Cell. 2019 Jul 11;178(2):507-508. PMID: 30550785; PMCID: PMC6298040.
[4]:Zhao R, Zhou Y, et,al. Irisin Regulating Skeletal Response to Endurance Exercise in Ovariectomized Mice by Promoting Akt/β-Catenin Pathway. Front Physiol. 2021 Mar 25;12:639066. doi: 10.3389/fphys.2021.639066. PMID: 33841178; PMCID: PMC8027323.
[5]:Yin J, Li Z, et,al. Cyclic RGDyK conjugation facilitates intracellular drug delivery of polymeric micelles to integrin-overexpressing tumor cells and neovasculature. J Drug Target. 2011 Jan;19(1):25-36. doi: 10.3109/10611861003663531. Epub 2010 Mar 16. PMID: 20233083.