IQ 3

CAS# 312538-03-7

IQ 3

Catalog No. BCC8093----Order now to get a substantial discount!

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Chemical structure

IQ 3

3D structure

Chemical Properties of IQ 3

Cas No. 312538-03-7 SDF Download SDF
PubChem ID 777728 Appearance Powder
Formula C20H11N3O3 M.Wt 341.32
Type of Compound N/A Storage Desiccate at -20°C
Solubility Soluble to 20 mM in DMSO
Chemical Name (indeno[1,2-b]quinoxalin-11-ylideneamino) furan-2-carboxylate
SMILES C1=CC=C2C(=C1)C3=NC4=CC=CC=C4N=C3C2=NOC(=O)C5=CC=CO5
Standard InChIKey WBSWWONMTZEOGS-UHFFFAOYSA-N
Standard InChI InChI=1S/C20H11N3O3/c24-20(16-10-5-11-25-16)26-23-18-13-7-2-1-6-12(13)17-19(18)22-15-9-4-3-8-14(15)21-17/h1-11H
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 IQ 3

DescriptionSelective JNK3 inhibitor (Kd values are 66, 240 and 290 nM for JNK3, JNK1 and JNK2 respectively). Inhibits NF-κB/AP1 transcriptional activity in THP1-Blue cells (IC50 = 1.4 μM). Also inhibits TNF-α and IL-6 production in vitro.

IQ 3 Dilution Calculator

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IQ 3 Molarity Calculator

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Preparing Stock Solutions of IQ 3

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 2.9298 mL 14.649 mL 29.298 mL 58.596 mL 73.245 mL
5 mM 0.586 mL 2.9298 mL 5.8596 mL 11.7192 mL 14.649 mL
10 mM 0.293 mL 1.4649 mL 2.9298 mL 5.8596 mL 7.3245 mL
50 mM 0.0586 mL 0.293 mL 0.586 mL 1.1719 mL 1.4649 mL
100 mM 0.0293 mL 0.1465 mL 0.293 mL 0.586 mL 0.7325 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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References on IQ 3

Prebiotics and age, but not probiotics affect the transformation of 2-amino-3-methyl-3H-imidazo[4,5-f]quinoline (IQ) by fecal microbiota - An in vitro study.[Pubmed:27034248]

Anaerobe. 2016 Jun;39:124-35.

Heterocyclic aromatic amines (HAAs) are carcinogens which are formed in meat cooked using high-temperature methods. The human gastrointestinal (GI) microbiota plays a crucial role in maintaining health in humans of different ages, and especially in the elderly. However, the GI microbiota, whose metabolism and composition changes with age, may also be responsible for the activation of mutagenic substances reaching the colon with diet. Probiotics and prebiotics are promising in terms of reducing the destructive effects of HAAs. The aim of the study was to determine if fecal microbiota derived from the feces of 27 volunteers: infants (up to 18 months), adults (aged 23-39 years), the sub-elderly (aged 64-65 years), and the elderly (aged 76-87 years), and the presence of probiotics or prebiotics, affected the transformation of IQ (2-amino-3-methylimidazo[4,5-f]quinoline) to 7-OH-IQ (2-amino-3,6-dihydro-3-methyl-7H-imidazo[4,5-f]quinoline-7-one). The compounds were identified using LC-MS(n), NMR, and FTIR. Their genotoxicity was compared in the comet assay. Individual strains capable of IQ transformation were also identified. 7-OH-IQ was detected in six persons (two children and four elderly individuals). The degree of IQ conversion ranged from 26% (4-month-old girl) to 94% (81-year-old woman) of the initial quantity. Four Enterococcus isolates: two Enterococcus faecium and two Enterococcus faecalis strains, as well as one Clostridium difficile strain (LOCK 1030, from the culture collection) converted IQ to 7-OH-IQ. The genotoxicity of samples containing 7-OH-IQ was even three times higher (P < 0.05) than those with IQ and was correlated with the degree of IQ conversion and 7-OH-IQ concentration.

Ages and Stages Questionnaire at 3 Years for Predicting IQ at 5-6 Years.[Pubmed:28360034]

Pediatrics. 2017 Apr;139(4). pii: peds.2016-2798.

OBJECTIVES: To assess the predictive value of the 36-month Ages & Stages Questionnaire (ASQ) score for IQ score at age 5 to 6 years in the general population and to identify factors associated with IQ <85 once the ASQ score is taken into account. METHODS: Data were collected from 939 children enrolled in a population-based prospective cohort study. Developmental outcomes at 36 months were assessed via the ASQ and at 5 to 6 years via the Wechsler Preschool and Primary Scale of Intelligence. The ASQ threshold was identified via the receiver operating characteristic curve. Additional predictive factors to obtain an IQ <85 were investigated, and their interaction with ASQ score was studied. RESULTS: Sixty-nine children (7.3%) had an IQ <85. A 36-month ASQ score threshold of 270 was optimal to identify children with an IQ <85 at 5 to 6 years, with a 0.77 +/- 0.11 sensitivity and 0.68 +/- 0.03 specificity. Maternal educational level and occupational activity at the time of ASQ completion were associated with the risk of an IQ <85 at a given ASQ level. In the multivariate model, no interaction between the studied factors and ASQ score reached significance. CONCLUSIONS: In the general pediatric population, 36-month ASQ parental reports could be used to identify children at later risk of cognitive delay. Low maternal education level should also be considered as a major risk factor for lower IQ in preschool children regardless of ASQ score.

RNA Interference of IQ Motif Containing GTPase-Activating Protein 3 (IQGAP3) Inhibits Cell Proliferation and Invasion in Breast Carcinoma Cells.[Pubmed:28281966]

Oncol Res. 2016 Oct 27;24(6):455-461.

Breast cancer is a highly prevalent disease affecting women. The association of IQ motif containing GTPase-activating protein 3 (IQGAP3) and breast cancer is poorly defined. Here we reported that IQGAP3 is a key regulator of cell proliferation and metastasis during breast cancer progression. The expression of IQGAP3 was significantly increased in breast tissues compared to nontumor tissues at both protein and mRNA levels. Furthermore, IQGAP3 had a high expression level in ZR-75-30 and BT474 compared to other breast cancer cell lines. Depletion of IQGAP3 through RNA interference in ZR-75-30 and BT474 significantly inhibited cell proliferation. More importantly, IQGAP3 silencing in breast cancer cells notably repressed cell migration and invasion. Further analysis suggested that inhibition of cell proliferation and metastasis was associated with some proteins, including p53, MMP9, Snail, CDC42, p-ERK1/2, KIF2C, KIF4A, PCNA, and Twist. Since expression of IQGAP3 seems to be associated with the pathogenesis of breast cancer and suppression of it can inhibit cancer cell growth and metastasis, IQGAP3 may be a potential therapeutic target in human breast cancer.

Does n-3 LCPUFA supplementation during pregnancy increase the IQ of children at school age? Follow-up of a randomised controlled trial.[Pubmed:27188814]

BMJ Open. 2016 May 17;6(5):e011465.

INTRODUCTION: Despite recommendations that pregnant women increase their docosahexaenoic acid (DHA) intake to support fetal brain development, a recent systematic review found a lack of high-quality data to support the long-term effects of DHA supplementation on children's neurodevelopment. METHODS AND ANALYSIS: We will assess child neurodevelopment at 7 years of age in follow-up of a multicentre double-blind randomised controlled trial of DHA supplementation in pregnancy. In 2010-2012, n=2399 Australian women with a singleton pregnancy <21 weeks' gestation were randomised to receive 3 capsules daily containing a total dose of 800 mg DHA/day or a vegetable oil placebo until birth. N=726 children from Adelaide (all n=97 born preterm, random sample of n=630 born at term) were selected for neurodevelopmental follow-up and n=638 (preterm n=85) are still enrolled at 7 years of age. At the 7-year follow-up, a psychologist will assess the primary outcome, IQ, with the Wechsler Abbreviated Scale of Intelligence, Second Edition. Specific measures of executive functioning (Fruit Stroop and the Rey Complex Figure), attention (Test of Everyday Attention for Children), memory and learning (Rey Auditory Verbal Learning Test), language (Clinical Evaluation of Language Fundamentals, Fourth Edition) and basic educational skills (Wide Range Achievement Test, Fourth Edition) will also be administered. Caregivers will be asked to complete questionnaires measuring behaviour and executive functioning. Families, clinicians and research personnel are blinded to group assignment with the exception of families who requested unblinding prior to the follow-up. All analyses will be conducted according to the intention-to-treat principal. ETHICS AND DISSEMINATION: All procedures will be approved by the relevant institutional ethics committees prior to start of the study. The results of this study will be disseminated in peer-reviewed journal publications and academic presentations. TRIAL REGISTRATION NUMBERS: ACTRN12605000569606 and ACTRN12614000770662.

Identification and characterization of a novel class of c-Jun N-terminal kinase inhibitors.[Pubmed:22434859]

Mol Pharmacol. 2012 Jun;81(6):832-45.

In efforts to identify novel small molecules with anti-inflammatory properties, we discovered a unique series of tetracyclic indenoquinoxaline derivatives that inhibited lipopolysaccharide (LPS)-induced nuclear factor-kappaB/activating protein 1 activation. Compound IQ-1 (11H-indeno[1,2-b]quinoxalin-11-one oxime) was found to be a potent, noncytotoxic inhibitor of pro-inflammatory cytokine [interleukin (IL)-1alpha, IL-1beta, IL-6, IL-10, tumor necrosis factor (TNF)-alpha, interferon-gamma, and granulocyte-macrophage colony-stimulating factor] and nitric oxide production by human and murine monocyte/macrophages. Three additional potent inhibitors of cytokine production were identified through further screening of IQ-1 analogs. The sodium salt of IQ-1 inhibited LPS-induced TNF-alpha and IL-6 production in MonoMac-6 cells with IC(50) values of 0.25 and 0.61 muM, respectively. Screening of 131 protein kinases revealed that derivative IQ-3 [11H-indeno[1,2-b]quinoxalin-11-one-O-(2-furoyl)oxime]was a specific inhibitor of the c-Jun N-terminal kinase (JNK) family, with preference for JNK3. This compound, as well as IQ-1 and three additional oxime indenoquinoxalines, were found to be high-affinity JNK inhibitors with nanomolar binding affinity and ability to inhibit c-Jun phosphorylation. Furthermore, docking studies showed that hydrogen bonding interactions of the active indenoquinoxalines with Asn152, Gln155, and Met149 of JNK3 played an important role in enzyme binding activity. Finally, we showed that the sodium salt of IQ-1 had favorable pharmacokinetics and inhibited the ovalbumin-induced CD4(+) T-cell immune response in a murine delayed-type hypersensitivity model in vivo. We conclude that compounds with an indenoquinoxaline nucleus can serve as specific small-molecule modulators for mechanistic studies of JNKs as well as a potential leads for the development of anti-inflammatory drugs.

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