CTCE 9908

CXCR4 antagonist; induces mitotic catastrophe in ovarian cancer cells CAS# 1030384-98-5

CTCE 9908

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Chemical structure

CTCE 9908

3D structure

Chemical Properties of CTCE 9908

Cas No. 1030384-98-5 SDF Download SDF
PubChem ID 16186350 Appearance Powder
Formula C86H147N27O23 M.Wt 1927.27
Type of Compound N/A Storage Desiccate at -20°C
Solubility Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
Sequence KGVSLSYRK KGVSLSYR*

(Modifications: Amide bridge = 9-8*, Lys-9 = C-terminal amide)

SMILES CC(C)CC(C(=O)NC(CO)C(=O)NC(CC1=CC=C(C=C1)O)C(=O)NC(CCCNC(=N)N)C(=O)NCCCCC(C(=O)N)NC(=O)C(CCCNC(=N)N)NC(=O)C(CC2=CC=C(C=C2)O)NC(=O)C(CO)NC(=O)C(CC(C)C)NC(=O)C(CO)NC(=O)C(C(C)C)NC(=O)CNC(=O)C(CCCCN)N)NC(=O)C(CO)NC(=O)C(C(C)C)NC(=O)CNC(=O)C(CCCCN)N
Standard InChIKey VUYRSKROGTWHDC-HZGLMRDYSA-N
Standard InChI InChI=1S/C86H147N27O23/c1-45(2)35-58(104-81(133)64(43-116)110-83(135)68(47(5)6)112-66(120)39-99-71(123)53(89)17-9-12-30-87)75(127)108-62(41-114)79(131)106-60(37-49-22-26-51(118)27-23-49)77(129)102-56(20-15-33-97-85(92)93)73(125)96-32-14-11-19-55(70(91)122)101-74(126)57(21-16-34-98-86(94)95)103-78(130)61(38-50-24-28-52(119)29-25-50)107-80(132)63(42-115)109-76(128)59(36-46(3)4)105-82(134)65(44-117)111-84(136)69(48(7)8)113-67(121)40-100-72(124)54(90)18-10-13-31-88/h22-29,45-48,53-65,68-69,114-119H,9-21,30-44,87-90H2,1-8H3,(H2,91,122)(H,96,125)(H,99,123)(H,100,124)(H,101,126)(H,102,129)(H,103,130)(H,104,133)(H,105,134)(H,106,131)(H,107,132)(H,108,127)(H,109,128)(H,110,135)(H,111,136)(H,112,120)(H,113,121)(H4,92,93,97)(H4,94,95,98)/t53-,54-,55-,56-,57-,58-,59-,60-,61-,62-,63-,64-,65-,68-,69-/m0/s1
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Biological Activity of CTCE 9908

DescriptionCXCR4 antagonist; induces mitotic catastrophe in ovarian cancer cells. Displays additive cytotoxic effects when given with taxol. Enhances the efficacy of docetaxel in a mouse model.

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References on CTCE 9908

A CXCR4 antagonist CTCE-9908 inhibits primary tumor growth and metastasis of breast cancer.[Pubmed:19482312]

J Surg Res. 2009 Aug;155(2):231-6.

BACKGROUND: CXCL12/CXCR4 signaling may be involved in tumor growth and angiogenesis, and homing of cancer cells to bone and other organs. Our purpose was to determine whether inhibition of CXCR4 with a peptide-based antagonist would reduce tumor growth and metastasis of breast cancer. METHODS: We used two mouse models of breast cancer. In the first model, 1 x 10(6) MDA-MB-231 breast cancer cells transfected with luciferase were implanted into the inguinal mammary fat pad to produce primary tumors. In the second model, 1 x 10(5) MDA-231-BSC12 cells were injected into the left cardiac ventricle to produce bone metastases. CTCE-9908, a peptide analog of CXCL12 that competitively binds to CXCR4, was used to test the effect of inhibiting CXCR4. Five mice from each mouse model were treated with CTCE-9908 (25 mg/kg, injected subcutaneously 5 d/wk). All mice were assessed weekly using bioluminescent imaging to quantify relative volumes of tumor burden. RESULTS: Bioluminescencent imaging showed that the mice treated with CTCE-9908 had significantly less primary tumor burden than the control mice. At 5 and 6 wk, the mice treated with CTCE-9908 had a 7-fold reduction and 5-fold reduction in primary tumor burden, respectively. Treatment with CTCE-9908 also significantly inhibited the rate of metastases compared with the control group. At 5 and 6 wk, the mice treated with CTCE-9908 demonstrated a 9-fold reduction and 20-fold reduction in metastatic tumor burden, respectively. CONCLUSION: Treatment with the CXCR4 antagonist CTCE-9908 significantly reduced metastasis as well as primary tumor growth in mouse models of breast cancer.

Effective inhibition of metastases and primary tumor growth with CTCE-9908 in esophageal cancer.[Pubmed:23117118]

J Surg Res. 2013 Jun 15;182(2):250-6.

BACKGROUND: In spite of multimodular treatment, the therapeutic options for esophageal carcinoma are limited, and metastases remain the leading cause of tumor-related mortality. Expression of the chemokine receptor CXCR4 significantly correlates with poor survival rates in patients with esophageal carcinoma and is associated with lymph node and bone marrow metastases. The aim of this study was to evaluate the effect of the CXCR4 antagonist CTCE-9908 on metastatic homing and primary tumor growth in vitro and in vivo in an orthotopic xenograft model of esophageal cancer. MATERIALS AND METHODS: OE19 cells were examined for stromal cell-derived factor 1 alpha-mediated migration under CTCE-9908 treatment. The CTCE-9908 treatment was further evaluated in an in vitro proliferation assay and orthotopic esophageal model, accompanied by magnetic resonance imaging. Tumor and metastases were immunohistochemically examined for CXCR4 expression. RESULTS: CTCE-9908 has an inhibitory effect on stromal cell-derived factor 1 alpha-mediated migration and proliferation of OE19 cells. Treatment with CTCE-9908 in the orthotopic esophageal model leads to a reduction of metastatic spread and primary tumor growth. This was confirmed by magnetic resonsance imaging. Treatment with CTCE-9908 results in altered CXCR4 expression pattern exhibiting a high degree of variability. CONCLUSION: CTCE-9908 effectively inhibits OE19 cell migration and proliferation in vitro, reduces metastases to lung, liver, and lymph nodes in vivo, and moreover leads to tumor growth reduction in an orthotopic model of esophageal carcinoma.

Targeting CXCR4 with CTCE-9908 inhibits prostate tumor metastasis.[Pubmed:24472670]

BMC Urol. 2014 Jan 28;14:12.

BACKGROUND: CXCL12/CXCR4 transactivation of epidermal growth factor family receptors in lipid raft membrane microdomains on cell surface is thought to mediate tumor growth and subsequent development of metastatic disease. CTCE-9908 is a known inhibitor of CXCR4. Herein, we tested the efficacy of CTCE-9908 in inhibiting prostate cancer cell growth, invasion, and metastasis. METHODS: We used a panel of in vitro assays utilizing human prostate cancer cell lines and an in vivo orthotopic prostate cancer model to assess the anti-tumoral activity of CTCE-9908. RESULTS: We demonstrated that (a) CTCE-9908 treatment resulted in no significant change in the growth of PC-3 and C4-2B cells; (b) 50 mug/ml of CTCE-9908 inhibited the invasive properties of PC-3 cells; (c) 25 mg/kg of CTCE-9908 did not alter primary tumor growth but it did significantly reduce total tumor burden in the animal including the growth of prostate and soft tissue metastases to lymph node and distant organ tissues. Histological analysis showed that CTCE-9908 treatment resulted in tumor necrosis in primary prostate tumors and no significant change in proliferation of tumor cells as measured by Ki-67 staining; (d) CTCE-9908 inhibited the tumor angiogenesis as measured by CD34 positive vessels in tumors. CONCLUSIONS: These data suggest that CXCR4 inhibition by CTCE-9908 decreases the invasion potential in vitro, which then translated to a reduction of tumor spread with associated reduction in angiogenesis. Hence, CTCE-9908 may prove to be an efficacious novel agent to prevent and treat the spread of metastatic prostate cancer.

Effects of CXCR4 antagonist CTCE-9908 on prostate tumor growth.[Pubmed:19588526]

Prostate. 2009 Sep 15;69(13):1460-9.

BACKGROUND: Recent reports have linked the survival-promoting effect of CXCR4 to the up regulation of Bcl-2 protein expression. MATERIALS AND METHODS: To further elucidate the relationship between Bcl-2 and CXCR4, tumorigenicity was evaluated in in vitro and in vivo models following treatment with CTCE-9908, a CXCR4 antagonist peptide. RESULTS: In vitro, CTCE-9908 inhibited cellular proliferation in PC-3-Bcl-2 and PC-3-Neo cell lines Furthermore in our xenograft model, CTCE-9908 delivered via daily intraperitoneal injections resulted in a statistically significant reduction in tumor size compared to control (396 + 205 mm(3) vs. 1,010 + 215 mm(3) respectively, p < 0.05) in the Bcl-2 expressing tumors. This reduction was associated with knockdown of VEGF, inhibition of angiogenesis and lymphangiogenesis, and induction of apoptosis. CTCE-9908 therapy was also associated with a marked reduction in intra-tumoral host cells expressing VEGFR1 and CD11b myeloid-derived suppressor cells (MDSC). CONCLUSION: These data show that CXCR4 antagonists represent a valuable addition to the cancer therapeutic arsenal. Such agents may have beneficial synergistic dual-effects in reducing tumor cell proliferation directly, and indirectly through perturbation of the tumor microenvironment. Further studies of the novel CTCE-9908 compound in prostate and other solid tumor inhibition are warranted. Prostate 69: 1460-1469, 2009. (c) 2009 Wiley-Liss, Inc.

CXCR4 peptide antagonist inhibits primary breast tumor growth, metastasis and enhances the efficacy of anti-VEGF treatment or docetaxel in a transgenic mouse model.[Pubmed:20830712]

Int J Cancer. 2011 Jul 1;129(1):225-32.

CXCR4 is a chemokine receptor implicated in the homing of cancer cells to target metastatic organs, which overexpress its ligand, stromal cell-derived factor (SDF)-1. To determine the efficacy of targeting CXCR4 on primary tumor growth and metastasis, we used a peptide inhibitor of CXCR4, CTCE-9908, that was administered in a clinically relevant approach using a transgenic breast cancer mouse model. We first performed a dosing experiment of CTCE-9908 in the PyMT mouse model, testing 25, 50 and 100 mg/kg versus the scrambled peptide in groups of 8-16 mice. We then combined CTCE-9908 with docetaxel or DC101 (an anti-VEGFR2 monoclonal antibody). We found that increasing doses of CTCE-9908 alone slowed the rate of tumor growth, with a 45% inhibition of primary tumor growth at 3.5 weeks of treatment with 50 mg/kg of CTCE-9908 (p = 0.005). Expression levels of VEGF were also found to be reduced by 42% with CTCE-9908 (p = 0.01). In combination with docetaxel, CTCE-9908 administration decreased tumor volume by 38% (p = 0.02), an effect that was greater than that observed with docetaxel alone. In combination with DC101, CTCE-9908 also demonstrated an enhanced effect compared to DC101 alone, with a 37% decrease in primary tumor volume (p = 0.01) and a 75% reduction in distant metastasis (p = 0.009). In combination with docetaxel or an anti-angiogenic agent, the anti-tumor and anti-metastatic effects of CTCE-9908 were markedly enhanced, suggesting potentially new effective combinatorial therapeutic strategies in the treatment of breast cancer, which include targeting the SDF-1/CXCR4 ligand/receptor pair.

The many facets of SDF-1alpha, CXCR4 agonists and antagonists on hematopoietic progenitor cells.[Pubmed:17541466]

J Biomed Biotechnol. 2007;2007(3):26065.

Stromal cell-derived factor-1alpha (SDF-1alpha) has pleiotropic effects on hematopoietic progenitor cells (HPCs). We have monitored podia formation, migration, proliferation, and cell-cell adhesion of human HPC under the influence of SDF-1alpha, a peptide agonist of CXCR4 (CTCE-0214), a peptide antagonist (CTCE-9908), and a nonpeptide antagonist (AMD3100). Whereas SDF-1alpha induced migration of CD34(+) cells in a dose-dependent manner, CTCE-0214, CTCE-9908, and AMD3100 did not induce chemotaxis in this concentration range albeit the peptides CTCE-0214 and CTCE-9908 increased podia formation. Cell-cell adhesion of HPC to human mesenchymal stromal cells was impaired by the addition of SDF-1alpha, CTCE-0214, and AMD3100. Proliferation was not affected by SDF-1alpha or its analogs. Surface antigen detection of CXCR4 was reduced upon treatment with SDF-1alpha or AMD3100 and it was enhanced by CTCE-9908. Despite the fact that all these molecules target the same CXCR4 receptor, CXCR4 agonists and antagonists have selective effects on different functions of the natural molecule.

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