CRANAD 2

CAS# 1193447-34-5

CRANAD 2

Catalog No. BCC6293----Order now to get a substantial discount!

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Chemical structure

CRANAD 2

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Chemical Properties of CRANAD 2

Cas No. 1193447-34-5 SDF Download SDF
PubChem ID 90488972 Appearance Powder
Formula C23H25BF2N2O2 M.Wt 410.26
Type of Compound N/A Storage Desiccate at -20°C
Solubility Soluble to 5 mM in DMSO with gentle warming
Chemical Name [4-[(2Z)-2-[6-[(E)-2-[4-(dimethylamino)phenyl]ethenyl]-2,2-difluoro-1,3-dioxa-2-boranuidacyclohex-5-en-4-ylidene]ethylidene]cyclohexa-2,5-dien-1-ylidene]-dimethylazanium
SMILES [B-]1(OC(=CC(=CC=C2C=CC(=[N+](C)C)C=C2)O1)C=CC3=CC=C(C=C3)N(C)C)(F)F
Standard InChIKey PVXQJYXODFZTBR-UHFFFAOYSA-N
Standard InChI InChI=1S/C23H25BF2N2O2/c1-27(2)20-11-5-18(6-12-20)9-15-22-17-23(30-24(25,26)29-22)16-10-19-7-13-21(14-8-19)28(3)4/h5-17H,1-4H3
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 CRANAD 2

DescriptionNear-infrared probe that binds to Aβ40 aggregates (Kd = 38 nM) and elicits an emission blue shift. Shown to bind to plaques in APP-PS1 transgenic mice, in vitro. Detects senile plaques in 19-month-old Tg2576 mice in vivo. Penetrates the blood-brain barrier.

CRANAD 2 Dilution Calculator

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CRANAD 2 Molarity Calculator

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Preparing Stock Solutions of CRANAD 2

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 2.4375 mL 12.1874 mL 24.3748 mL 48.7496 mL 60.937 mL
5 mM 0.4875 mL 2.4375 mL 4.875 mL 9.7499 mL 12.1874 mL
10 mM 0.2437 mL 1.2187 mL 2.4375 mL 4.875 mL 6.0937 mL
50 mM 0.0487 mL 0.2437 mL 0.4875 mL 0.975 mL 1.2187 mL
100 mM 0.0244 mL 0.1219 mL 0.2437 mL 0.4875 mL 0.6094 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 CRANAD 2

Induction of Broadly Cross-Reactive Stalk-Specific Antibody Responses to Influenza Group 1 and Group 2 Hemagglutinins by Natural H7N9 Virus Infection in Humans.[Pubmed:28380622]

J Infect Dis. 2017 Feb 15;215(4):518-528.

Background: The outbreak of novel avian H7N9 influenza virus infections in China in 2013 has demonstrated the continuing threat posed by zoonotic pathogens. Deciphering the immune response during natural infection will guide future vaccine development. Methods: We assessed the induction of heterosubtypic cross-reactive antibodies induced by H7N9 infection against a large panel of recombinant hemagglutinins and neuraminidases by quantitative enzyme-linked immunosorbent assay, and novel chimeric hemagglutinin constructs were used to dissect the anti-stalk or -head humoral immune response. Results: H7N9 infection induced strong antibody responses against divergent H7 hemagglutinins. Interestingly, we also found induction of antibodies against heterosubtypic hemagglutinins from both group 1 and group 2 and a boost in heterosubtypic neutralizing activity in the absence of hemagglutination inhibitory activity. Kinetic monitoring revealed that heterosubtypic binding/neutralizing antibody responses typically appeared and peaked earlier than intrasubtypic responses, likely mediated by memory recall responses. Conclusions: Our results indicate that cross-group binding and neutralizing antibody responses primarily targeting the stalk region can be elicited after natural influenza virus infection. These data support our understanding of the breadth of the postinfection immune response that could inform the design of future, broadly protective influenza virus vaccines.

Ficolin-A/2, acting as a new regulator of macrophage polarization, mediates the inflammatory response in experimental mouse colitis.[Pubmed:28380665]

Immunology. 2017 Aug;151(4):433-450.

Human ficolin-2 (FCN-2) and mouse ficolin-A (FCN-A, a ficolin-2-like molecule in mouse) are activators of the lectin complement pathway, present in normal plasma and usually associated with infectious diseases, but little is known about the role of FCN-A/2 in inflammatory bowel disease (IBD). In our present study, we found that patients with IBD exhibited much higher serum FCN-2 levels than healthy controls. In the dextran sulphate sodium-induced acute colitis mouse model, FCN-A knockout mice showed much milder disease symptoms with less histological damage, lower expression levels of pro-inflammatory cytokines [interleukin-6 (IL-6), IL-1beta and tumour necrosis factor-alpha (TNF-alpha)], chemokines (CXCL1/2/10 and CCL4) and higher levels of the anti-inflammatory cytokine IL-10 compared with wild-type mice. We demonstrated that FCN-A/2 exacerbated the inflammatory pathogenesis of IBD by stimulating M1 polarization through the TLR4/MyD88/MAPK/NF-kappaB signalling pathway in macrophages. Hence, our data suggest that FCN-A/2 may be used as a novel therapeutic target for IBD.

Bicomponent fibrous scaffolds made through dual-source dual-power electrospinning: Dual delivery of rhBMP-2 and Ca-P nanoparticles and enhanced biological performances.[Pubmed:28380671]

J Biomed Mater Res A. 2017 Aug;105(8):2199-2209.

Electrospun scaffolds incorporated with both calcium phosphates (Ca-P) and bone morphogenetic protein-2 (BMP-2) have been used for bone tissue regeneration. However, in most cases BMP-2 and Ca-P were simply mixed and loaded in a monolithic structure, risking low BMP-2 loading level, reduced BMP-2 biological activity, uncontrolled BMP-2 release and inhomogeneous Ca-P distribution. In this investigation, novel bicomponent scaffolds having evenly distributed rhBMP-2-containing fibers and Ca-P nanoparticle-containing fibers were made using an established dual-source dual-power electrospinning technique with the assistance of emulsion electrospinning and blend electrospinning. The release behavior of rhBMP-2 and Ca(2+) ions could be separately tuned and the released rhBMP-2 retained a 68% level for biological activity. MC3T3-E1 cells showed high viability and normal morphology on scaffolds. Compared to monocomponent scaffolds, enhanced cell proliferation, alkaline phosphatase activity, cell mineralization, and gene expression of osteogenic markers were achieved for bicomponent scaffolds due to the synergistic effect of rhBMP-2 and Ca-P nanoparticles. Bicomponent scaffolds with a double mass elicited further enhanced cell adhesion, spreading, proliferation, and osteogenic differentiation. (c) 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 2199-2209, 2017.

Integrated analysis of non-coding RNA and mRNA expression profiles of 2 pig breeds differing in muscle traits.[Pubmed:28380516]

J Anim Sci. 2017 Mar;95(3):1092-1103.

Production of high-quality meat is important to satisfy the consumer and allow the pork industry to be competitive. It is evident that different muscle fiber types in different breeds greatly influence the pork quality, but the underlying molecular mechanism remains unclear. We used Ribo-Zero RNA-Seq and miRNA-Seq to examine global expressions of protein-coding transcripts and non-coding RNAs including miRNA, lncRNA, and circRNA in the longissimus dorsi of Landrace and Lantang pigs. Of the 22,469 identified coding transcripts, only 547 candidates were differentially expressed, including 461 upregulated and 86 downregulated transcripts in the Lantang pigs compared with Landrace. Gene ontology analysis of these differentially-expressed transcripts further revealed 17 genes involved in myogenesis. In addition, 5,566 lncRNA and 4,360 circRNA candidates were found to be differentially expressed. Of these, 3,976 lncRNAs and 1,401 circRNAs were upregulated in the Lantang library, while 1,590 lncRNAs and 2,959 circRNAs were downregulated. Of the differentially expressed circRNAs, 236 candidates were edited from 93 functional hosting-genes related to myogenesis. We found 96 showed upregulation and 140 showed downregulation. By analyzing Ribo-Zero RNA-Seq data in combination with matched miRNA profiles, we identified 68 sponge modulators participating in 26 miRNA-mediated ceRNA interactions, including 19 lncRNAs, 40 circRNAs, and 9 mRNAs. Our study uncovered a novel post-transcriptional regulation layer which could help in the understanding of the mechanisms that underlie porcine myofiber development in different breeds.

Non-conjugated small molecule FRET for differentiating monomers from higher molecular weight amyloid beta species.[Pubmed:21559413]

PLoS One. 2011 Apr 29;6(4):e19362.

BACKGROUND: Systematic differentiation of amyloid (Abeta) species could be important for diagnosis of Alzheimer's disease (AD). In spite of significant progress, controversies remain regarding which species are the primary contributors to the AD pathology, and which species could be used as the best biomarkers for its diagnosis. These controversies are partially caused by the lack of reliable methods to differentiate the complicated subtypes of Abeta species. Particularly, differentiation of Abeta monomers from toxic higher molecular weight species (HrMW) would be beneficial for drug screening, diagnosis, and molecular mechanism studies. However, fast and cheap methods for these specific aims are still lacking. PRINCIPAL FINDINGS: We demonstrated the feasibility of a non-conjugated FRET (Forster resonance energy transfer) technique that utilized amyloid beta (Abeta) species as intrinsic platforms for the FRET pair assembly. Mixing two structurally similar curcumin derivatives that served as the small molecule FRET pair with Abeta40 aggregates resulted in a FRET signal, while no signal was detected when using Abeta40 monomer solution. Lastly, this FRET technique enabled us to quantify the concentrations of Abeta monomers and high molecular weight species in solution. SIGNIFICANCE: We believe that this FRET technique could potentially be used as a tool for screening for inhibitors of Abeta aggregation. We also suggest that this concept could be generalized to other misfolded proteins/peptides implicated in various pathologies including amyloid in diabetes, prion in bovine spongiform encephalopathy, tau protein in AD, and alpha-synuclein in Parkinson disease.

Design, synthesis, and testing of difluoroboron-derivatized curcumins as near-infrared probes for in vivo detection of amyloid-beta deposits.[Pubmed:19807070]

J Am Chem Soc. 2009 Oct 28;131(42):15257-61.

Amyloid-beta (Abeta) deposits have been identified as key players in the progression of Alzheimer's disease (AD). Recent evidence indicates that the deposits probably precede and induce the neuronal atrophy. Therefore, methods that enable monitoring the pathology before clinical symptoms are observed would be beneficial for early AD detection. Here, we report the design, synthesis, and testing of a curcumin-derivatized near-infrared (NIR) probe, CRANAD-2. Upon interacting with Abeta aggregates, CRANAD-2 undergoes a range of changes, which include a 70-fold fluorescence intensity increase, a 90 nm blue shift (from 805 to 715 nm), and a large increase in quantum yield. Moreover, this probe also shows a high affinity for Abeta aggregates (K(d) = 38.0 nM), a reasonable log P value (log P = 3), considerable stability in serum, and a weak interaction with albumin. After intravenous injection of this probe, 19-month-old Tg2576 mice exhibited significantly higher relative signal than that of the control mice over the same period of time. In summary, CRANAD-2 meets all the requirements for a NIR contrast agent for the detection of Abeta plaques both in vitro and in vivo. Our data point toward the feasibility of monitoring the progress of the disease by NIR imaging with CRANAD-2. In addition, we believe that our probe could be potentially used as a tool for drug screening.

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