Taccalonolide AJ | CAS:1349904-82-0 | Manufacturer ChemFaces

Taccalonolide AJ

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Size /Price /Stock	10 mM * 1 mL in DMSO / $257.4 / In-stock
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Description:

Taccalonolide AJ is a microtubule stabilizer; it has excellent and highly persistent antitumor efficacy when administered directly to the tumor, suggesting that the lack of antitumor efficacy seen with systemic administration of AJ is likely due to its short half-life in vivo.

In vivo:

J Nat Prod. 2017 Feb 24;80(2):409-414.

Pharmacokinetic Analysis and in Vivo Antitumor Efficacy of Taccalonolides AF and AJ.[Pubmed: 28112516 ]

The taccalonolides are microtubule stabilizers that covalently bind tubulin and circumvent clinically relevant forms of resistance to other drugs of this class. Efforts are under way to identify a taccalonolide with optimal properties for clinical development. The structurally similar taccalonolides AF and AJ have comparable microtubule-stabilizing activities in vitro, but taccalonolide AF has excellent in vivo antitumor efficacy when administered systemically, while Taccalonolide AJ does not elicit this activity even at maximum tolerated dose.
METHODS AND RESULTS:
The hypothesis that pharmacokinetic differences underlie the differential efficacies of taccalonolides AF and AJ was tested. The effects of serum on their in vivo potency, metabolism by human liver microsomes and in vivo pharmacokinetic properties were evaluated. Taccalonolides AF and AJ were found to have elimination half-lives of 44 and 8.1 min, respectively. Furthermore, Taccalonolide AJ was found to have excellent and highly persistent antitumor efficacy when administered directly to the tumor, suggesting that the lack of antitumor efficacy seen with systemic administration of AJ is likely due to its short half-life in vivo.
CONCLUSIONS:
These results help define why some, but not all, taccalonolides inhibit the growth of tumors at systemically tolerable doses and prompt studies to further improve their pharmacokinetic profile and antitumor efficacy.

Taccalonolide AJ Description

Source:	The rhizomes of Schizocapsa plantaginea Hance
Solvent:	Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Storage:	Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months(2-8C). Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour. Need more advice on solubility, usage and handling? Please email to: service@chemfaces.com
After receiving:	The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.

Kinase Assay:

Biochem Pharmacol. 2013 Apr 15;85(8):1104-14.

Chemically diverse microtubule stabilizing agents initiate distinct mitotic defects and dysregulated expression of key mitotic kinases.[Pubmed: 23399639]

METHODS AND RESULTS:
Microtubule stabilizers are some of the most successful drugs used in the treatment of adult solid tumors and yet the molecular events responsible for their antimitotic actions are not well defined. The mitotic events initiated by three structurally and biologically diverse microtubule stabilizers; Taccalonolide AJ, laulimalide/fijianolide B and paclitaxel were studied. These microtubule stabilizers cause the formation of aberrant, but structurally distinct mitotic spindles leading to the hypothesis that they differentially affect mitotic signaling. Each microtubule stabilizer initiated different patterns of expression of key mitotic signaling proteins. Taccalonolide AJ causes centrosome separation and disjunction failure to a much greater extent than paclitaxel or laulimalide, which is consistent with the distinct defects in expression and activation of Plk1 and Eg5 caused by each stabilizer. Localization studies revealed that TPX2 and Aurora A are associated with each spindle aster formed by each stabilizer. This suggests a common mechanism of aster formation. However, Taccalonolide AJ also causes pericentrin accumulation on every spindle aster. The presence of pericentrin at every spindle aster initiated by Taccalonolide AJ might facilitate the maintenance and stability of the highly focused asters formed by this stabilizer. Laulimalide and paclitaxel cause completely different patterns of expression and activation of these proteins, as well as phenotypically different spindle phenotypes.
CONCLUSIONS:
Delineating how diverse microtubule stabilizers affect mitotic signaling pathways could identify key proteins involved in modulating sensitivity and resistance to the antimitotic actions of these compounds.

Product Name	Taccalonolide AJ
Price:	$318 / 5mg
CAS No.:	1349904-82-0
Catalog No.:	CFN90935
Molecular Formula:	C₃₄H₄₄O₁₄
Molecular Weight:	676.7 g/mol
Purity:	>=98%
Type of Compound:	Steroids
Physical Desc.:	Powder
Source:	The rhizomes of Schizocapsa plantaginea Hance
Solvent:	Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Download:	COA MSDS SDF
Similar structural:	Comparison (Web) (SDF)
Guestbook:

Size /Price /Stock	10 mM * 100 uL in DMSO / Inquiry / In-stock 10 mM * 1 mL in DMSO / Inquiry / In-stock
Related Libraries	Anticancer Compound Library Microtubule stabilizers Compound Library Steroids Compound Library

	1 mg	5 mg	10 mg	20 mg	25 mg
1 mM	1.4778 mL	7.3888 mL	14.7776 mL	29.5552 mL	36.944 mL
5 mM	0.2956 mL	1.4778 mL	2.9555 mL	5.911 mL	7.3888 mL
10 mM	0.1478 mL	0.7389 mL	1.4778 mL	2.9555 mL	3.6944 mL
50 mM	0.0296 mL	0.1478 mL	0.2956 mL	0.5911 mL	0.7389 mL
100 mM	0.0148 mL	0.0739 mL	0.1478 mL	0.2956 mL	0.3694 mL

CFN95317	4,7-Didehydroneophysalin B	134461-76-0	508.5	C₂₈H₂₈O₉
CFN95329	Physalin X	72497-31-5	526.5	C₂₈H₃₀O₁₀
CFN90596	Taccalonolide A	108885-68-3	702.74	C₃₆H₄₆O₁₄
CFN90935	Taccalonolide AJ	1349904-82-0	676.7	C₃₄H₄₄O₁₄
CFN90166	Physalin L	113146-74-0	528.55	C₂₈H₃₂O₁₀
CFN92940	Physalin A	23027-91-0	526.5	C₂₈H₃₀O₁₀
CFN95097	Physalin O	120849-18-5	528.55	C₂₈H₃₂O₁₀
CFN92936	Isophysalin A	1363398-67-7	526.5	C₂₈H₃₀O₁₀
CFN92938	Physalin C	27503-33-9	510.53	C₂₈H₃₀O₉
CFN92941	Physalin B	23133-56-4	510.53	C₂₈H₃₀O₉