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ApexBio/ST 2825/1mg/A3840

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¥57900.00
货号:A3840
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ST 2825Inhibitor of MyD88 dimerization

Catalog No.A3840
SizePriceStockQty
1mg
$554.00
In stock
5mg
$1,903.00
In stock
10mg
$2,895.00
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Tel: +1-832-696-8203

Email: sales@apexbt.com

Worldwide Distributors

Sample solution is provided at 25 µL, 10mM.

Product Citations

1. Pantaleão L, Rocha GHO, et al. "Connections of annexin A1 and translocator protein-18 kDa on tolllike receptor stimulated BV-2 cells." Exp Cell Res. 2018 Jun 15;367(2):282-290.PMID:29649428 2. Janda J, Burkett NB, et al. "Resatorvid-based Pharmacological Antagonism of Cutaneous TLR4Blocks UV-induced NF-κB and AP-1 Signaling in Keratinocytes and Mouse Skin."Photochem Photobiol. 2016 Nov;92(6):816-825.PMID:27859308 3. Wang SH, Wang SC, et al. "Induction of cyclooxygenase-2 gene by Candida albicans through EGFR, ERK, and p38 pathways in human urinaryepithelium." Med Mycol. 2016 Sep 23.PMID:276641704. Hu LT, et al. "Role of TREM-1 in response to Aspergillus fumigatus infection in corneal epithelial cells.." Int Immunopharmacol.2014 Sep 18. pii:S1567-5769(14)00363-4.PMID:25242387

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Quality Control

Quality Control & MSDS

View current batch:
    Purity = 98.00%
  • COA (Certificate Of Analysis)
  • MSDS (Material Safety Data Sheet)
  • Datasheet

Chemical structure

ST 2825

Related Biological Data

ST 2825

Related Biological Data

ST 2825

Related Biological Data

ST 2825

Related Biological Data

ST 2825

Biological Activity

DescriptionST 2825 is an inhibitor of MyD88 pharmacologic
TargetsMyD88
IC50

Protocol

Cell experiment:

Cell lines

HEK 293T and HeLa cell [1], B cells and plasmacytoid dendritic cells [1]

Preparation method

The solubility of this compound in DMSO is >10 mM. General tips for obtaining a higher concentration: Please warm the tube at 37 °C for 10 minutes and/or shake it in the ultrasonic bath for a while.Stock solution can be stored below -20°C for several months.

Reaction Conditions

6-7 h (HEK 293T cell), 15 min (HeLa cell), 5 days (B cell culture) [1]

Applications

In HEK293T cells, ST2825 specifically inhibited homodimerization of MyD88 TIR domains with 40% inhibition of dimerization at 5 μM and 80% inhibition at 10 μM. This effect was specific for homodimerization of the TIR domains and did not affect homodimerization of the death domains. Moreover, ST2825 interfered with recruitment of IRAK1 and IRAK4 by MyD88, causing inhibition of IL-1-mediated activation of NF-κB transcriptional activity [1]. B cell proliferation and differentiation into plasma cells in response to CpG-induced activation of TLR9 were also suppressed by ST2825 (> 8 μM). These results showed that ST2825 blocked IL-1R/TLR signaling by interfering with MyD88 homodimerization and suggested that it may have therapeutic potential in treatment of chronic inflammatory diseases [1]. TLR9-induced plasma cell (PC) generation was blocked by ST2825 in Peripheral blood mononuclear cells from SLE patients [3].

Animal experiment:

Animal models

C57BL female mice [1]

Dosage form

Orally taken at 100 or 200 mg/kg/day [1]; injection at 25 mg/kg/day [2]

Preparation method

ST2825 dissolved in 0.5% carboxymethylcellulose [1]

Applications

IL-1 beta-induced production of IL-6 was dose-dependently inhibited by ST2825 (100 or 200mg/kg daily) in treated mice [1]. In a murine model of non-reperfused acute myocardial infarction,ST2825 (25 mg/kg) protected left ventricular from dilatation and hypertrophy. No measurable reduction in infarct size was found [2].

Other notes

Please test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal.

References:

[1]. Loiarro M, Capolunghi F, Fantò N et al. Pivotal advance: inhibition of MyD88 dimerization and recruitment of IRAK1 and IRAK4 by a novel peptidomimetic compound. Journal of Leukocyte Biology (2007), 82(4), 801-810.

[2]. Van Tassell BW, Seropian IM, Toldo S et al. Pharmacologic Inhibition of Myeloid Differentiation Factor 88 (MyD88) Prevents Left Ventricular Dilation and Hypertrophy After Experimental Acute Myocardial Infarction in the Mouse. Journal of Cardiovascular Pharmacology (2010), 55(4), 385-390.

[3]. Capolunghi F1, Rosado MM, Cascioli S et al., Pharmacological inhibition of TLR9 activation blocks autoantibody production in human B cells from SLE patients. Rheumatology (Oxford). 2010 Dec;49(12):2281-9.

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Chemical Properties

Cas No. 894787-30-5SDF Download SDF
Synonyms ST2825;ST-2825
Chemical Name (4R,7R,8aR)-1"-[2-[4-[[2-(2,4-dichlorophenoxy)acetyl]amino]phenyl]acetyl]-6-oxospiro[3,4,8,8a-tetrahydro-2H-pyrrolo[2,1-b][1,3]thiazine-7,2"-pyrrolidine]-4-carboxamide
Canonical SMILES C1CC2(CC3N(C2=O)C(CCS3)C(=O)N)N(C1)C(=O)CC4=CC=C(C=C4)NC(=O)COC5=C(C=C(C=C5)Cl)Cl
Formula C27H28Cl2N4O5S M.Wt 591.51
Solubility Soluble in DMSO Storage Store at -20°C
Physical AppearanceA solidShipping ConditionEvaluation sample solution : ship with blue ice.All other available size:ship with RT , or blue ice upon request
General tipsFor 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.

Background

ST 2825 is a specific inhibitor of MyD88 dimerization [1].

ST 2825 is a synthetic compound which mimics the structure of the heptapeptide in the BB-loop of the MyD88-TIR domain and interferes the homodimerization of MyD88. ST 2825 was proved to specifically inhibit the homodimerization of MyD88 TIR domains without affecting the homodimerization of death domains. In HEK293T cells transfected with Flag-MyD88 and Myc-MyD88, ST 2825 inhibited the interaction of the two MyD88 by 80% at the concentration of 10 μM. This inhibition resulted in the subsequent interference of the IRAK1 and IRAK4 recruitment. Besides that, administration of ST 2825 significantly inhibited the IL-6 production stimulated by IL-1β at doses of 100 and 200 mg/kg in mice. Furthermore, 8 μM ST 2825 completely blocked the TLR9-induced B cell proliferation. ST2825 also suppressed the generation of plasma cells induced by CpG dose-dependently [1].

References:[1] Loiarro M, Capolunghi F, Fantò N, et al. Pivotal Advance: Inhibition of MyD88 dimerization and recruitment of IRAK1 and IRAK4 by a novel peptidomimetic compound. Journal of leukocyte biology, 2007, 82(4): 801-810.

ApexBio的3X FLAG Peptide FLAG标签系统利用与目标蛋白质1融合的短而亲水的8个氨基酸的肽段。FLAG肽与抗体M1结合。结合是钙依赖性方式2还是非依赖性3仍存在争议。该系统的缺点是单克隆抗体纯化基质不如其他基质稳定。通常,可以用特异性单克隆抗体检测小标签。为了改善对FLAG标签的检测,已经开发了3x FLAG系统。这种三级FLAG表位是亲水的,长22个氨基酸,可以检测到高达10 fmol的表达融合蛋白。激烈热球菌的带有FLAG标签的麦芽糖糊精结合蛋白已被结晶4,其晶体质量与未标记蛋白的晶体质量非常相似。 最后,可以通过用肠激酶处理去除FLAG标签,肠激酶对肽序列5的5个C末端氨基酸具有特异性。