Celastrol

製品コードS1290 バッチS129005

印刷

化学情報

Chemical Structure Synonyms NSC 70931, Tripterine Storage
(From the date of receipt)		 3 years -20°C powder
1 years -80°C in solvent
化学式

C29H38O4
分子量 450.61 CAS No. 34157-83-0
Solubility (25°C)* 体外 DMSO 90 mg/mL (199.72 mM)
Water Insoluble
Ethanol Insoluble
体内 （毎回新しく調製した物を用意してください）
Homogeneous suspension
CMC-NA
≥5mg/ml Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

溶剤液（一定の濃度）を調合する

生物活性

製品説明 Celastrol is a potent proteasome inhibitor for the chymotrypsin-like activity of a purified 20S proteasome with IC50 of 2.5 μM. Celastrol induces apoptosis and autophagy via the ROS/JNK signaling pathway. Celastrol inhibits dopaminergic neuronal death of Parkinson's disease through activating mitophagy.
in vitro Celastrol at 5 μM inhibits the chymotrypsin-like, PGPH-like, and trypsin-like activities of the purified 20S proteasome by 80%, 5%, and <1%, respectively, whereas at 10 μM, it inhibits these three proteasomal activities by ∼90%, 15%, and <1%, respectively. This compound significantly inhibits the proteasomal chymotrypsin activity in PC-3 cells in a concentration-dependent manner. It at 2.5 μM to 5 μM induces caspase-3 activity by 4.7-fold to 5.5-fold in PC-3 cells. In this chemical (5 μM) treated cells, the levels of the proteasome target proteins, IκB-α and Bax, are increased after 1 hour and further increased to its peak for 4 hours to 12 hours. This compound (2.5 μM) treatment induces proteasome inhibition by 40%, as shown by the decreased levels of chymotrypsin-like activity and increased accumulation of ubiquitinated proteins in LNCaP cells. It (2.5 μM) induces apoptosis in the Celastrol-treated LNCaP cells, as shown by increased levels of caspase-3 activity (up to 3.5-fold), PARP cleavage, and apoptotic morphology. [1] This compound (300 nM) is found to suppress LPS-induced production of TNF-alpha and IL-1beta by human monocytes and macrophages. It (100 nM) also decreases LPS-induced expression of class II MHC molecules by microglia. This chemical strongly inhibits LPS and IFN-y-induced NO production with IC50 of 200 nM in macrophage lineage cells. It strongly inhibits TNF-α and IFN-γ-induced NO production with IC50 of 200 nM in endothelial cells. [2] This compound (2.5 μM) potentiates the apoptosis induced by TNF and chemotherapeutic agents and inhibits invasion, both regulated by NF-kappaB activation, in KBM-5 cells. It (2.5 μM) suppresses the expression of TNF induced the expression of gene products involved in antiapoptosis (IAP1, IAP2, Bcl-2, Bcl-XL, c-FLIP, and survivin), proliferation (cyclin D1 and COX-2), invasion (MMP-9), and angiogenesis (VEGF) in KBM-5 cells. This chemical (5 μM) is found to inhibit the TNF-induced activation of IkappaBalpha kinase, IkappaBalpha phosphorylation, IkappaBalpha degradation, p65 nuclear translocation and phosphorylation, and NF-kappaB-mediated reporter gene expression. [3] It inhibits proliferating of RPMI 8226, KATOIII, UM-SCC1, U251MG and MDA-MB-231 cells with IC50 of 0.52 μM, 0.54 μM, 0.76 μM, 0.69 μM and 0.67 μM, respectively. This compound (1 μM) inhibits growth of RPMI 8226 with a decrease in the levels of cyclin D1 and cyclin E, but concomitant increase in the levels of p21 and p27. It induces apoptosis in RPMI-8226 cells indicated by the activation of caspase-8, bid cleavage, caspase-9 activation, caspase-3 activation, PARP cleavage and through the down regulation of anti-apoptototic proteins. This chemical (1 μM) suppresses Akt pathway and activates JNK kinase in RPMI-8226 cells. [4]
in vivo Celastrol (3 mg/kg) results in significant inhibition (up to 70%) of tumor growth in male nude mice bearing PC-3 tumors, associated with increased p27 levels and Bax level. This compound results more apoptotic tumor cells with the appearance of various PARP cleavage fragments in tumor of male nude mice bearing PC-3 tumors. It causes 35% of tumor inhibition, associated with decreased proteasome activity and decreased expression of AR protein in nude mice bearing C4-2B tumors. [1] This chemical is found to suppress strongly joint swelling and other manifestations of adjuvant arthritis in mice. It (0.2 mg/kg) significantly improves the performance in memory, learning and psychomotor activity tests in rats. [2]
特徴 A potent antioxidant and anti-inflammatory drug.

プロトコル(参考用のみ)

キナーゼアッセイ Inhibition of purified 20S proteasome activity
A purified rabbit 20S proteasome (0.1 μg) is incubated with 40 μM of various fluorogenic peptide substrates in 100 μL assay buffer (20 mM Tris-HCl (pH 7.5)), in the presence of Celastrol at different concentrations or in the solvent DMSO for 2 hours at 37 ℃, followed by measurement of inhibition of each proteasomal activity.
細胞アッセイ 細胞株 RPMI 8226, KATOIII, UM-SCC1, U251MG and MDA-MB-231 cells
濃度 ~5 μM
反応時間 2 hours
実験の流れ The anti-proliferative effect of celastrol on various human tumor cell lines is determined by the MTT uptake method. Briefly, 5×103 cells are incubated with this compound in triplicate in a 96-well plate at 37 ℃. MTT solution is then added to each well. After a 2 hours incubation at 37 ℃, extraction buffer (20% SDS, 50% dimethylformamide) is added, cells are incubated overnight at 37 ℃, and the optical density is then measured at 570 nm using a Tecan plate reader.
動物実験 動物モデル nude mice bearing C4-2B tumors
投薬量 3 mg/kg
投与方法 Intraperitoneal injection

参考

  • https://pubmed.ncbi.nlm.nih.gov/16651429/
  • https://pubmed.ncbi.nlm.nih.gov/11513350/
  • https://pubmed.ncbi.nlm.nih.gov/17110449/
  • https://pubmed.ncbi.nlm.nih.gov/21786165/

カスタマーフィードバック

, , Oncotarget, 2016, 7(20):29648-63.

Data from [Data independently produced by , , Eur J Med Chem, 2017, 136:63-73]

Selleckの高級品が、幾つかの出版された研究調査結果（以下を含む）で使われた：

Celastrol alleviates esophageal stricture in rats by inhibiting NLR family pyrin domain containing 3 activation [ World J Gastroenterol, 2025, 31(23):106949] PubMed: 40575338
Development of vascularized adipose organoids from PBMSCs and their application in evaluating Celastrol's effects [ Adipocyte, 2025, 14(1):2548787] PubMed: 40878808
Inhibition of Selenoprotein I promotes ferroptosis and reverses resistance to platinum chemotherapy by impairing Akt phosphorylation in ovarian cancer [ MedComm (2020), 2024, 5(12):e70033] PubMed: 39669976
Mechanistic study of celastrol-mediated inhibition of proinflammatory activation of macrophages in IgA nephropathy via down-regulating ECM1 [ Int J Biol Sci, 2024, 20(14):5731-5746] PubMed: 39494325
Functional Characterization of a Spectrum of Genetic Variants in a Family with Succinic Semialdehyde Dehydrogenase Deficiency [ Int J Mol Sci, 2024, 25(10)5237] PubMed: 38791277
Mitophagy modulation rescues single large-scale mitochondrial DNA deletion (SLSMD) disease symptoms in the C. elegans uaDf5 animal model [ bioRxiv, 2024, 2024.10.27.620333] PubMed: 40692703
Celastrol regulates the oligomeric state and chaperone activity of αB-crystallin linked with protein homeostasis in the lens [ Fundam Res, 2024, 4(2):394-400] PubMed: 38933503
A NRF2-induced secretory phenotype activates immune surveillance to remove irreparably damaged cells [ Redox Biol, 2023, 66:102845] PubMed: 37597423
A NRF2-induced secretory phenotype activates immune surveillance to remove irreparably damaged cells [ Redox Biol, 2023, 66:102845] PubMed: 37597423
Celastrol targeting Nedd4 reduces Nrf2-mediated oxidative stress in astrocytes after ischemic stroke [ J Pharm Anal, 2023, 13(2):156-169] PubMed: 36908855

長期の保管のために-20°Cの下で製品を保ってください。

人間や獣医の診断であるか治療的な使用のためにでない。

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