Cilengitide TFA

Cilengitide is a potent and selective integrin inhibitor for αvβ3 and αvβ5 receptor, with IC50 values of 4 nM and 79 nM, respectively.

Product information

CAS Number: 199807-35-7

Molecular Weight: 702.68

Formula: C29H41F3N8O9

Synonym:

EMD 121974 TFA

Chemical Name: 2-[(2S,5R,8S,11S)-5-benzyl-11-(3-carbamimidamidopropyl)-7-methyl-3,6,9,12,15-pentaoxo-8-(propan-2-yl)-1,4,7,10,13-pentaazacyclopentadecan-2-yl]acetic acid; trifluoroacetic acid

Smiles: CC(C)[C@H]1C(=O)N[C@@H](CCCNC(N)=N)C(=O)NCC(=O)N[C@@H](CC(O)=O)C(=O)N[C@H](CC2C=CC=CC=2)C(=O)N1C.OC(=O)C(F)(F)F

InChiKey: WHJCSACXAPYNTG-LOPTWHKWSA-N

InChi: InChI=1S/C27H40N8O7.C2HF3O2/c1-15(2)22-25(41)33-17(10-7-11-30-27(28)29)23(39)31-14-20(36)32-18(13-21(37)38)24(40)34-19(26(42)35(22)3)12-16-8-5-4-6-9-16;3-2(4,5)1(6)7/h4-6,8-9,15,17-19,22H,7,10-14H2,1-3H3,(H,31,39)(H,32,36)(H,33,41)(H,34,40)(H,37,38)(H4,28,29,30);(H,6,7)/t17-,18-,19+,22-;/m0./s1

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: H2O : 25 mg/mL (35.58 mM; Need ultrasonic).

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 ^oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 ^oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

How to use

In Vitro:

Cilengitide (EMD 121974) is the αvβ3 and αvβ5 integrin receptor antagonist. In cell adhesion studies assessing the human melanoma M21 or UCLA-P3 human lung carcinoma cell lines, Cilengitide inhibits integrin-mediated binding to vitronectin with IC50s of 0.4 and 0.4 μM. In vitro treatment of Cilengitide, at a concentration greater than 1 µM, shows concentration- and time-dependent cytotoxic effects .

In Vivo:

In nude mice bearing M21-L melanoma tumors, Cilengitide dose i.p. at 10, 50, and 250 μg three times per week demonstrate inhibition of tumor growth with a reduction in both tumor volume (55%, 75%, and 89%, respectively) and tumor weight (23%, 38%, and 61%, respectively), when compared to controls. In the rat model studied, the systemic pharmacokinetics of i.p. Cilengitide are not affected by ILP with Cilengitide alone or ILP with Cilengitide plus Melphalan, TNF or both. Systemic Cilengitide levels reach around 20 µg/mL (approximately 35 µM) within 10 min of i.p. administration and continued to rise to approximately 40 µg/mL (approximately 70 µM) in the first hour. Thereafter Cilengitide levels in serum drop with an elimination half-life of 2.1 hr.

References:

1. Hariharan S, et al. Assessment of the biological and pharmacological effects of the alpha nu beta3 and alpha nu beta5 integrinreceptor antagonist, Cilengitide (EMD 121974), in patients with advanced solid tumors. Ann Oncol. 2007 Aug;18(8):1400-7.
2. Kim YH, et al. Combination therapy of cilengitide with belotecan against experimental glioblastoma. Int J Cancer. 2013 Aug 1;133(3):749-56.
3. Ten Hagen TL, et al. The αVβ3/αVβ5 integrin inhibitor cilengitide augments tumor response to melphalan isolated limb perfusion in a sarcoma model. Int J Cancer. 2012 Nov 13.

Products are for research use only. Not for human use.