Cediranib (AZD217)|288383-20-0|安捷凯

Background

Cediranib (also known as AZD2171) is a highly potent KDR tyrosine kinase inhibitor that ATP-competitively inhibits recombinant KDR tyrosine kinase as well as other members of vascular endothelial growth factor receptor (VEGFR) family, including Flt-1 (VEGFR-1) and Flt-4 (VEGFR-3) with the half maximal inhibition concentration IC50 values of <0.001 μmol/L, 0.005 μmol/L and <0.003 μmol/L respectively [1].

Cediranib also potently inhibits a few members of platelet-derived growth factor receptor (PDGFR) family, including c-Kit, PDGFR-β, PDGFR-α, CSF-1R and Flt-3, with IC50 values of 0.002 μmol/L, 0.005 μmol/L, 0.036 μmol/L, 0.11 μmol/L anf > 1 μmol/L respectively due to their similar structure to VEGFR family members [1].

参考文献:
[1] Wedge SR, Kendrew J, Hennequin LF, Valentine PJ, Barry ST, Brave SR, Smith NR, James NH, Dukes M, Curwen JO, Chester R, Jackson JA, Boffey SJ, Kilburn LL, Barnett S, Richmond GH, Wadsworth PF, Walker M, Bigley AL, Taylor ST, Cooper L, Beck S, Jürgensmeier JM, Ogilvie DJ. AZD2171: a highly potent, orally bioavailable, vascular endothelial growth factor receptor-2 tyrosine kinase inhibitor for the treatment of cancer. Cancer Res. 2005 May 15;65(10):4389-400.

Protocol

Kinase experiment:

The inhibitory activity of Cediranib is determined against a range of recombinant tyrosine kinases [KDR, Flt-1, Flt-4, c-Kit, PDGFR-α, PDGFR-β, CSF-1R, Flt-3, FGFR1, Src, Abl, epidermal growth factor receptor (EGFR), ErbB2, Aur-A, and Aur-B] using ELISA methodology[1].

Cell experiment:

Proliferation of MG63 osteosarcoma cells is induced by PDGF-AA, which selectively activates PDGFR-α homodimer signaling. Cells are cultured in DMEM without phenol red containing 1% charcoal stripped FCS, 2 mM glutamine, and 1% nonessential amino acids for 24 hours. Cediranib or vehicle is added with PDGF-AA ligand (50 ng/mL) and plates reincubated for 72 hours. Cellular proliferation is determined using a bromodeoxyuridine[1].

Animal experiment:

Rats: Young female Alderley Park rats (6 weeks of age, Wistar derived, n=5) are dosed orally, once daily for 28 days with Cediranib (1.25-5 mg per kg per day) or vehicle. Additional rats (five per group) are treated with Cediranib (5 mg per kg per day) or vehicle for 28 days and maintained for a further 28 days without treatment, to examine the effect of compound withdrawal. Histologic paraffin wax sections of the femorotibial joints and ovaries are stained with H&E. Morphometric image analysis of femorotibial sections is done, with growth plate areas from both the femur and tibia in each joint being combined for an analysis of the effect of compound treatment. The area of corpora lutea in H&E-stained ovary sections is similarly determined by morphometric analysis[1]. Mice: Mice bearing established Calu-6 human lung tumor xenografts (0.2±0.01 cm3) are selected (day 0) and treated chronically with Cediranib (6 mg per kg per day, p.o.) or vehicle. Tumors are collected (6-15 per group) 4 hours after the last dose of Cediranib or vehicle, on days 1, 2, 7, 14, and 21. CD31 is then detected in sections using a chromagen end point or fluorescent immunostaining[1].

参考文献:

[1]. Wedge SR, et al. AZD2171: a highly potent, orally bioavailable, vascular endothelial growth factor receptor-2 tyrosine kinase inhibitor for the treatment of cancer. Cancer Res, 2005, 65(10), 4389-4400.
[2]. Zhang L, et al. Pleiotrophin promotes vascular abnormalization in gliomas and correlates with poor survival in patients with astrocytomas. Sci Signal. 2015 Dec 8;8(406):ra125.

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Cediranib (AZD217)

Cediranib (AZD217)详情

Background

Protocol

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