TC 14012

CXCR4 antagonist; ACKR3 (CXCR7) agonist CAS# 368874-34-4

TC 14012

Catalog No. BCC7910----Order now to get a substantial discount!

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Chemical structure

TC 14012

3D structure

Chemical Properties of TC 14012

Cas No. 368874-34-4 SDF Download SDF
PubChem ID 134812817 Appearance Powder
Formula C90H140N34O19S2 M.Wt 2066.43
Type of Compound N/A Storage Desiccate at -20°C
Solubility Soluble to 1 mg/ml in water
Sequence RRACYXKXPYRXCR

(Modifications: Disulfide bridge between 4 - 13, Arg-14 = C-terminal amide, Ala-3 = 3-(2-naphthalenyllalanine), X-6 and X-12 = L-Citrulline, X-8 = D-Citrulline)

Chemical Name (6S,12S,15R,23R,29S,32S)-6-(4-aminobutyl)-N-[(2S)-1-amino-5-carbamimidamido-1-oxopentan-2-yl]-15-[[(2S)-2-[[(2S)-2-[[(2S)-2-amino-5-carbamimidamidopentanoyl]amino]-5-carbamimidamidopentanoyl]amino]-3-naphthalen-2-ylpropanoyl]amino]-26-(3-carbamimidamidopropyl)-3,9,23-tris[3-(carbamoylamino)propyl]-12,29-bis[(4-hydroxyphenyl)methyl]-2,5,8,11,14,22,25,28,31-nonaoxo-17,18-dithia-1,4,7,10,13,21,24,27,30-nonazabicyclo[30.3.0]pentatriacontane-20-carboxamide
SMILES C1CC2C(=O)NC(C(=O)NC(C(=O)NC(C(=O)NC(CSSCC(C(=O)NC(C(=O)NC(C(=O)NC(C(=O)NC(C(=O)N2C1)CCCNC(=O)N)CCCCN)CCCNC(=O)N)CC3=CC=C(C=C3)O)NC(=O)C(CC4=CC5=CC=CC=C5C=C4)NC(=O)C(CCCNC(=N)N)NC(=O)C(CCCNC(=N)N)N)C(=O)NC(CCCNC(=N)N)C(=O)N)CCCNC(=O)N)CCCNC(=N)N)CC6=CC=C(C=C6)O
Standard InChIKey SGDDHDBBOJNZKY-SPLAAUOGSA-N
Standard InChI InChI=1S/C90H140N34O19S2/c91-34-4-3-16-58-74(131)118-63(22-11-41-111-90(104)143)83(140)124-42-12-23-69(124)82(139)121-65(45-50-27-32-55(126)33-28-50)78(135)117-60(19-8-38-108-87(100)101)73(130)115-62(21-10-40-110-89(103)142)76(133)122-67(80(137)112-57(70(93)127)17-6-36-106-85(96)97)47-144-145-48-68(81(138)120-64(44-49-25-30-54(125)31-26-49)77(134)116-61(72(129)114-58)20-9-39-109-88(102)141)123-79(136)66(46-51-24-29-52-13-1-2-14-53(52)43-51)119-75(132)59(18-7-37-107-86(98)99)113-71(128)56(92)15-5-35-105-84(94)95/h1-2,13-14,24-33,43,56-69,125-126H,3-12,15-23,34-42,44-48,91-92H2,(H2,93,127)(H,112,137)(H,113,128)(H,114,129)(H,115,130)(H,116,134)(H,117,135)(H,118,131)(H,119,132)(H,120,138)(H,121,139)(H,122,133)(H,123,136)(H4,94,95,105)(H4,96,97,106)(H4,98,99,107)(H4,100,101,108)(H3,102,109,141)(H3,103,110,142)(H3,104,111,143)/t56-,57-,58-,59-,60?,61?,62+,63?,64-,65-,66-,67?,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 TC 14012

DescriptionCXCR4 antagonist and ACKR3 (CXCR7) agonist (EC50 = 350 nM for CXCR7).

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References on TC 14012

The peptidomimetic CXCR4 antagonist TC14012 recruits beta-arrestin to CXCR7: roles of receptor domains.[Pubmed:20956518]

J Biol Chem. 2010 Dec 3;285(49):37939-43.

CXCR7 is an atypical chemokine receptor that signals through beta-arrestin in response to agonists without detectable activation of heterotrimeric G-proteins. Its cognate chemokine ligand CXCL12 also binds CXCR4, a chemokine receptor of considerable clinical interest. Here we report that TC14012, a peptidomimetic inverse agonist of CXCR4, is an agonist on CXCR7. The potency of beta-arrestin recruitment to CXCR7 by TC14012 is much higher than that of the previously reported CXCR4 antagonist AMD3100 and differs only by one log from that of the natural ligand CXCL12 (EC(50) 350 nM for TC14012, as compared with 30 nM for CXCL12 and 140 muM for AMD3100). Moreover, like CXCL12, TC14012 leads to Erk 1/2 activation in U373 glioma cells that express only CXCR7, but not CXCR4. Given that with TC14012 and AMD3100 two structurally unrelated CXCR4 antagonists turn out to be agonists on CXCR7, this likely reflects differences in the activation mechanism of the arrestin pathway by both receptors. To identify the receptor domain responsible for these opposed effects, we investigated CXCR4 and CXCR7 C terminus-swapping chimeras. Using quantitative bioluminescence resonance energy transfer, we find that the CXCR7 receptor core formed by the seven-transmembrane domains and the connecting loops determines the agonistic activity of both TC14012 and AMD3100. Moreover, we find that the CXCR7 chimera bearing the CXCR4 C-terminal constitutively associates with arrestin in the absence of ligands. Our data suggest that the CXCR4 and CXCR7 cores share ligand-binding surfaces for the binding of the synthetic ligands, indicating that CXCR4 inhibitors should be tested also on CXCR7.

Small peptide inhibitors of the CXCR4 chemokine receptor (CD184) antagonize the activation, migration, and antiapoptotic responses of CXCL12 in chronic lymphocytic leukemia B cells.[Pubmed:15905192]

Blood. 2005 Sep 1;106(5):1824-30.

Growth and survival of chronic lymphocytic leukemia (CLL) B cells are favored by interactions between CLL and nontumoral accessory cells. CLL cells express CXCR4 chemokine receptors that direct leukemia cell chemotaxis. Marrow stromal cells or nurselike cells constitutively secrete CXCL12, the ligand for CXCR4, thereby attracting and rescuing CLL B cells from apoptosis in a contact-dependent fashion. Therefore, the CXCR4-CXCL12 axis represents a potential therapeutic target in CLL. We evaluated the most active CXCR4-specific antagonists (T140, TC14012, TN14003) for their capacity to inhibit CXCL12 responses in CLL cells. T140, or its analogs, inhibited actin polymerization, chemotaxis, and migration of CLL cells beneath stromal cells. CXCL12-induced phosphorylation of p44/42 mitogen-activated protein kinase (MAPK) and signal transducer and activator of transcription 3 (STAT3) was abolished by CXCR4 antagonists. TC14012 and TN14003 antagonized the antiapoptotic effect of synthetic CXCL12 and stromal cell-mediated protection of CLL cells from spontaneous apoptosis. Furthermore, we found that stromal cells protected CLL cells from chemotherapy-induced apoptosis. Treatment with CXCR4 antagonists resensitized CLL cells cultured with stromal cells to fludarabine-induced apoptosis. These findings demonstrate that CXCR4 blocking agents effectively antagonize CXCL12-induced migratory and signaling responses and stromal protection of CLL cells from spontaneous or fludarabine-induced apoptosis. As such, small molecular CXCR4 antagonists may have activity in the treatment of patients with this disease.

Synthesis of potent CXCR4 inhibitors possessing low cytotoxicity and improved biostability based on T140 derivatives.[Pubmed:14649896]

Org Biomol Chem. 2003 Nov 7;1(21):3656-62.

A peptidic CXCR4 antagonist T140 efficiently blocks the entry of T cell line-tropic strains of HIV-1 (X4-HIV-1) into target cells. In this study, a series of T140 derivatives, replacing the basic amino acid residues with Glu (D-Glu) and/or L-citrulline (Cit), were synthesized in order to reduce non-specific binding and cytotoxicity. Among them, TE14011 ([Cit6, D-Glu8]-T140 with the C-terminal amide) exhibited strong anti-HIV activity and low cytotoxicity. TE14011 was found to be stable in mouse serum, but unstable in rat liver homogenate due to the deletion of the N-terminal Arg1-Arg2-L-3-(2-naphthyl)alanine (Nal)3 residues from the parent peptide. N-Terminal acetylation of TE14011 led to the development of a novel lead compound, Ac-TE 14011, which possesses a high selectivity index as well as increased stability in serum and liver homogenate.

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