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TTNPB (Arotinoid Acid)

Potent RAR agonist CAS# 71441-28-6

TTNPB (Arotinoid Acid)

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Quality Control of TTNPB (Arotinoid Acid)

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Chemical structure

TTNPB (Arotinoid Acid)

3D structure

Chemical Properties of TTNPB (Arotinoid Acid)

Cas No. 71441-28-6 SDF Download SDF
PubChem ID 5289501 Appearance Powder
Formula C24H28O2 M.Wt 348.48
Type of Compound N/A Storage Desiccate at -20°C
Synonyms Ro 13-7410
Solubility DMSO : 11.25 mg/mL (32.28 mM; Need ultrasonic and warming)
H2O : < 0.1 mg/mL (insoluble)
Chemical Name 4-[(E)-2-(5,5,8,8-tetramethyl-6,7-dihydronaphthalen-2-yl)prop-1-enyl]benzoic acid
SMILES CC(=CC1=CC=C(C=C1)C(=O)O)C2=CC3=C(C=C2)C(CCC3(C)C)(C)C
Standard InChIKey FOIVPCKZDPCJJY-JQIJEIRASA-N
Standard InChI InChI=1S/C24H28O2/c1-16(14-17-6-8-18(9-7-17)22(25)26)19-10-11-20-21(15-19)24(4,5)13-12-23(20,2)3/h6-11,14-15H,12-13H2,1-5H3,(H,25,26)/b16-14+
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 TTNPB (Arotinoid Acid)

DescriptionExtremely potent analog of retinoic acid, selective for the retinoic acid receptor (RAR) subtype. Enhances reprogramming efficiency in chemically induced pluripotent stem cells (CiPSCs).

TTNPB (Arotinoid Acid) Dilution Calculator

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TTNPB (Arotinoid Acid) Molarity Calculator

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Preparing Stock Solutions of TTNPB (Arotinoid Acid)

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 2.8696 mL 14.348 mL 28.6961 mL 57.3921 mL 71.7401 mL
5 mM 0.5739 mL 2.8696 mL 5.7392 mL 11.4784 mL 14.348 mL
10 mM 0.287 mL 1.4348 mL 2.8696 mL 5.7392 mL 7.174 mL
50 mM 0.0574 mL 0.287 mL 0.5739 mL 1.1478 mL 1.4348 mL
100 mM 0.0287 mL 0.1435 mL 0.287 mL 0.5739 mL 0.7174 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.

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Background on TTNPB (Arotinoid Acid)

TTNPB (Arotinoid Acid) is an agonist of RAR with IC50 values of 3.8nM, 4nM and 4.5nM for RARα, RARβ and RARγ, respectively [1].

TTNPB is a teratogen with 1000-fold higher potency than tRA. TTNPB inhibits chondrogenesis with IC50 value of 0.14nM when using mouse limb bud cell cultures. The action of TTNPB results from binding to nuclear receptors. TTNPB can competes with [3H]tRA and prevent them from binding to mRARα, mRARβ and mRARγ with IC50 values of 3.8nM, 4nM and 4.5nM, respectively. Besides that, TTNPB also directly binds to mRARs with high potency. The Kd values are 2.5nM, 2.7nM and 1.8nM for mRARα, mRARβ and mRARγ, respectively. Moreover, TTNPB is reported to bind to mCRABPI and mCRABPII with 27-fold and 3.5-fold lower affinity than tRA [1].

References:
[1] Pignatello M A, Kauffman F C, Levin A A. Multiple factors contribute to the toxicity of the aromatic retinoid, TTNPB (Ro 13-7410): Binding affinities and disposition. Toxicology and applied pharmacology, 1997, 142(2): 319-327.

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References on TTNPB (Arotinoid Acid)

Heterocycle-containing retinoids. Discovery of a novel isoxazole arotinoid possessing potent apoptotic activity in multidrug and drug-induced apoptosis-resistant cells.[Pubmed:11428925]

J Med Chem. 2001 Jul 5;44(14):2308-18.

In a search for retinoic acid (RA) receptor ligands endowed with potent apoptotic activity, a series of novel arotinoids were prepared. Because the stereochemistry of the C9-alkenyl portion of natural 9-cis-RA and the olefinic moiety of the previously synthesized isoxazole retinoid 4 seems to have particular importance for their apoptotic activity, novel retinoid analogues with a restricted or, vice versa, a larger flexibility in this region were designed and prepared. The new compounds were evaluated in vitro for their ability to activate natural retinoid receptors and for their differentiation-inducing activity. Cytotoxic and apoptotic activities were, in addition, evaluated. In general, these analogues showed low cytotoxicity, with the restricted structures being slightly more active than the more flexible ones. As an exception, however, the isoxazole retinoid 15b proved to be particularly able to induce apoptosis at concentrations <5 microM, showing a higher activity than the classical retinoids such as all-trans-RA, 13-cis-RA, and 9-cis-RA and the previously described synthetic retinoid 4. 15b also exhibited a good affinity for the retinoid receptors. Interestingly, another important property of 15b was its ability to induce apoptosis in the HL60R multidrug-resistant (MDR) cell line, at the same concentration as is effective in HL60. Therefore, 15b represents a new retinoid possessing high apoptotic activity in an MDR cell line. The ability of 15b to act on K562 and HL60R cells suggests that this compound may have important implications in the treatment of different leukemias, and its structure could offer an interesting model for the design of new compounds endowed with apoptotic activity on MDR- and retinoid-resistant malignancies.

Different combinations of retinoids and vitamin D3 analogs efficiently promote growth inhibition and differentiation of myelomonocytic leukemia cell lines.[Pubmed:7965714]

J Pharmacol Exp Ther. 1994 Oct;271(1):193-9.

The efficacy of all-trans retinoic acid (RA) in the treatment of acute promyelocytic leukemia results from the ability of RA to differentiate these peculiar leukemic cells. The efficacy of differentiation therapy could be improved and extended to other forms of leukemia by associating retinoids with other differentiating agents. Here we have compared the effects of different combinations of retinoids with 1 alpha,25-dihydroxyvitamin D3 (VD3) analogs on myelomonocytic cell lines HL-60, U937 and THP-1. All-trans RA, its natural isomer 9-cis RA and the arotinoid TTNPB, which differ by their respective specificities for the RA receptor families (retinoic acid receptor and retinoid X receptor), were found to cooperate with VD3 in inhibiting cell growth of the leukemic cell lines. Although the three cell lines displayed different susceptibilities to retinoids, each molecule was able to cooperate with VD3 in inducing U937 cell differentiation. Because the effects of VD3 on calcium metabolism limit its therapeutic use, we studied the effects of two synthetic analogs, MC903 and KH1060. Both agents cooperate with RA, acting more efficiently than the natural molecule in inhibiting cell growth and inducing some parameters of U937 cell differentiation. These results extend our previous data demonstrating that RA and VD3 exert synergistic effects on the differentiation of the myelomonocytic cell line U937. They demonstrate that combinations of agents able to inhibit leukemia cell growth with limited side effects may be found among a wide array of retinoids and vitamin D3 analogs.

Synthesis and structure-activity relationships of retinoid X receptor selective diaryl sulfide analogs of retinoic acid.[Pubmed:8784454]

J Med Chem. 1996 Aug 30;39(18):3556-63.

Retinoids exert their biological effects by binding to and activating nuclear receptors that interact with responsive elements on DNA to promote gene transcription. There are two families of retinoid receptors, the retinoic acid receptor (RAR) family and the retinoid X receptor (RXR) family, which are each further divided into three subclasses: RAR alpha, beta, gamma and RXR alpha, beta, gamma. Herein we describe the synthesis and structure-activity relationships of a new series of diaryl sulfide retinoid analogs that specifically bind and transactivate the RXRs. Furthermore, the sulfoxide and sulfone derivatives of these analogs are partial agonists which activate the RXRs only at high concentrations. Thus, these compounds possess a potential site of metabolic deactivation and may have less prolonged systemic effects than other compounds with arotinoid-like structures. We show also that these compounds have activity in nontransfected cells as demonstrated by their ability to induce TGase activity in HL-60 cells. Finally, we corroborate our earlier report that RXR-specific agonists may possess reduced teratogenic toxicity compared to RAR-specific agonists since these compounds are much less potent inhibitors of chondrogenesis than RAR-specific agonists such as TTNPB.

Mofarotene (Ro 40-8757) inhibits hematopoiesis in vitro by preventing maturation from primitive progenitor cells.[Pubmed:8541541]

Blood. 1995 Dec 15;86(12):4516-26.

The effect of the arotinoid mofarotene (Ro 40-8757; 4-[2-[p-[(E)- 2(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthyl)- propenyl]phenoxy]ethyl]morpholine) on stromal cell-mediated hematopoiesis was examined in murine long-term bone marrow cultures. Whether added at week 2 to regenerating cultures or at week 4 to plateau-phase cultures, mofarotene strongly inhibited total cell production in a dose-dependent manner. Progenitor cell production was also inhibited, but to a lesser extent. When added at the initiation of culture, 1 mumol/L mofarotene did not affect formation of the adherent layer, but production of total nucleated cells and progenitors was inhibited over the next 10 weeks by 95% and 96%, respectively. However, after mofarotene treatment ceased, progenitor cell levels began increasing immediately, and cell production reached plateau levels comparable with those of control cultures within 4 weeks. Hematopoiesis was maintained for 14 more weeks, indicating that long-term culture-initiating cells survived the treatment. Assays of spleen colony-forming units (CFU-S) in the adherent layers showed an enrichment of day-13 CFU-S relative to the more mature day-9 CFU-S. Mofarotene did not inhibit colony formation by bone marrow cells stimulated by exogenous growth factors and did not decrease production of growth factors by stromal cells in the cultures, as determined by functional assays and by mRNA levels. These results suggest that mofarotene blocks differentiation of very primitive progenitors, inhibiting production of more mature hematopoietic elements.

Determination of arotinoid acid in human plasma by liquid chromatography-tandem mass spectrometry.[Pubmed:19632163]

J Chromatogr B Analyt Technol Biomed Life Sci. 2009 Oct 1;877(27):2983-8.

Arotinoid acid (Ro 13-7410) is the third generation of synthetic retinoid, which was developed for the treatment of psoriasis and other hyperkeratotic skin disorders. The therapeutically active dose is less than 0.5microg/kg body weight/day. To investigate the pharmacokinetics of arotinoid acid, a sensitive and selective liquid chromatographic-tandem mass spectrometric method (LC-MS/MS) for the determination of arotinoid acid in human plasma was developed and validated. The sample processing was carried out in the dark to minimize photodegradation of the analytes. Arotinoid acid and the internal standard (IS), acitretin, were extracted from plasma samples using solid phase extraction with Oasis HLB cartridges. Chromatographic separation was achieved on a Zorbax Extend C(18) column (150mmx4.6mm, i.d., 5microm) using methanol:acetonitrile:5mM ammonium acetate (48:32:20, v/v/v) as the mobile phase at a flow rate of 0.8mL/min. The detection was carried out in multiple reaction monitoring (MRM) mode via negative electrospray ionization (ESI) interface. The lower limit of quantification (LLOQ) achieved was 37.1pg/mL with intra-day and inter-day precision (RSD) of 8.7% and 8.5%, and accuracy (RE) of 2.0%. Inter-day and intra-day RSD for three quality control levels (QCs) across validation runs were less than 11.0% and the accuracy ranged from 1.9% to 3.3%. The validated LC-MS/MS method was applied to a phase I clinical pharmacokinetic study after a single oral administration of 40microg arotinoid trometamol to healthy subjects.

Pluripotent stem cells induced from mouse somatic cells by small-molecule compounds.[Pubmed:23868920]

Science. 2013 Aug 9;341(6146):651-4.

Pluripotent stem cells can be induced from somatic cells, providing an unlimited cell resource, with potential for studying disease and use in regenerative medicine. However, genetic manipulation and technically challenging strategies such as nuclear transfer used in reprogramming limit their clinical applications. Here, we show that pluripotent stem cells can be generated from mouse somatic cells at a frequency up to 0.2% using a combination of seven small-molecule compounds. The chemically induced pluripotent stem cells resemble embryonic stem cells in terms of their gene expression profiles, epigenetic status, and potential for differentiation and germline transmission. By using small molecules, exogenous "master genes" are dispensable for cell fate reprogramming. This chemical reprogramming strategy has potential use in generating functional desirable cell types for clinical applications.

Retinoid X receptor-selective ligands produce malformations in Xenopus embryos.[Pubmed:8700839]

Proc Natl Acad Sci U S A. 1996 Mar 5;93(5):1803-7.

Retinoids exert pleiotropic effects on the development of vertebrates through the action of retinoic acid receptors (RAR) and retinoid X receptors (RXR). We have investigated the effect of synthetic retinoids selective for RXR and RAR on the development of Xenopus and zebrafish embryos. In Xenopus, both ligands selective for RAR and RXR caused striking malformations along the anterior-posterior axis, whereas in zebrafish only ligands specific for RAR caused embryonic malformations. In Xenopus, RAR- and RXR-selective ligands regulated the expression of the Xlim-1, gsc, and HoxA1 genes similarly as all-trans-retinoic acid. Nevertheless, RXR-selective ligands activated only an RXR responsive reporter but not an RAR responsive reporter introduced by microinjection into the Xenopus embryo, consistent with our failure to detect conversion of an RXR-selective ligand to different derivatives in the embryo. These results suggest that Xenopus embryos possess a unique response pathway in which liganded RXR can control gene expression. Our observations further illustrate the divergence in retinoid responsiveness between different vertebrate species.

Description

TTNPB is a highly potent RAR agonist. Competitive binding assays using human RARs yield IC50s of α=5.1 nM, β= 4.5 nM, and γ=9.3 nM, respectively.

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