| Size | Price | Stock | Qty |
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| 1mg |
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| 5mg |
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| 10mg |
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Purity: ≥98%
| Targets |
STAT3 Amyloid-β
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|---|---|
| ln Vitro |
At a concentration of 100 fm, colavelin totally inhibits mortality caused by overexpressed FAD-caused genes and Aβ1-43, while maintaining its neuroprotective effects at or above 1 nm[1]. Colivelin-induced neuroprotection is mediated by two neuroprotective pathways: signal transducer and activator of transcription 3 (STT3), which is initiated by HN, and Ca2+/calmodulin-dependent protein kinase IV, which is mediated by ADNF[1]. In HT22 cells treated with rmMFG -E8, collagen reverses the expressions of caspase-3, Bax, and Bcl-2 in the co-cultured cells under OGD conditions[4]. In BV-2 cells, ivelin (50 µg/mL, 4 hours) dramatically raises the levels of the protein p-STAT3[4].
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| ln Vivo |
Colivelin (intracerebroventricular administration; 10 pmol/3 μl; 3 weeks) antagonizes neuronal loss in the CA1 region of the hippocampus by injecting Aβ1-42 into the hippocampal region, and it suppresses impairment in spatial working-induced memory induced by repetitive intracerebroventricular injection of Aβ25-35 or Aβ1-42[1]. Colivelin suppresses memory impairment caused by 3-quinuclidinyl benzilate and restricts functional memory deficit when administered intraperitoneally at 1.4, 7, or 35 nM/0.21 mL on the Y-maze test day[1]. (intraperitoneal injection; 1 mg/kg; 14 days) over time, as measured by the mNSS, rotarod, and corner turning tests, improves motor and cognitive function. Additionally, it improves neurological deficits following MCAO and decreases lesion volume[1].
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| Cell Assay |
Western Blot Analysis[4]
Cell Types: BV-2 cells. Tested Concentrations: 50 µg/mL. Incubation Duration: 4 hrs (hours). Experimental Results: Increased p-STAT3 levels. Cell Viability Assay[5] Cell Types: KYSE70 and TE8 cells. Tested Concentrations: 0.5 μM. Incubation Duration: 1 hour (followed by CYT-Rx20 treatment) Experimental Results: Dramatically suppressed the viability in KYSE70 and TE8 cells. |
| Animal Protocol |
Animal/Disease Models: CD-1 mice[1]
Doses: 10 pmol/3 μl Route of Administration: Intracerebroventricular administration Experimental Results: Completely suppressed Aβ 25-35-mediated impairment in spatial working memory and increased the number of immunoreactive neurons. Animal/Disease Models: C57 mice[1] Doses: 1.4, 7, or 35 nM/0.21mL Route of Administration: intraperitoneal (ip)administration Experimental Results: Protected against cholinotoxin-induced amnesia in mice. Animal/Disease Models: Male C57BL/ 6 mice[3] Doses: 1 mg/kg Route of Administration: intraperitoneal (ip)administration Experimental Results: Protected against ischemic brain injury, and improves neurological outcomes. |
| References |
[1]. Chiba T, et al. Development of a femtomolar-acting humanin derivative named colivelin by attaching activity-dependent neurotrophic factor to its N terminus: characterization of colivelin-mediated neuroprotection against Alzheimer's disease-relevant insults in vitro and in vivo. J Neurosci. 2005 Nov 2;25(44):10252-61.
[2]. Zhao H, et al. Colivelin Rescues Ischemic Neuron and Axons Involving JAK/STAT3 Signaling Pathway.Neuroscience. 2019 Sep 15;416:198-206. [3]. Pan Z, et al. Upregulation of HSP72 attenuates tendon adhesion by regulating fibroblast proliferation and collagen production via blockade of the STAT3 signaling pathway.Cell Signal. 2020 Mar 18:109606. [4]. Fang YY, et al. MFG-E8 alleviates oxygen-glucose deprivation-induced neuronal cell apoptosis by STAT3 regulating the selective polarization of microglia. Int J Neurosci. 2020 Mar 12:1-10. [5]. Chiu WC, et al. The Synthetic β-Nitrostyrene Derivative CYT-Rx20 Inhibits Esophageal Tumor Growth and Metastasis via PI3K/AKT and STAT3 Pathways. PLoS One. 2016 Nov 22;11(11):e0166453. |
| Molecular Formula |
C119H206N32O35.C2HF3O2
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|---|---|
| Molecular Weight |
2759.12
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| CAS # |
2803948-60-7
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| Related CAS # |
867021-83-8
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| Appearance |
Typically exists as solids (or liquids in special cases) at room temperature
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| SMILES |
C(N1CCC[C@H]1C(=O)N[C@@H](C)C(N1CCC[C@H]1C(=O)N[C@@H](C)C(=O)NCC(=O)N[C@@H](C)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@]([H])([C@H](O)C)C(=O)NCC(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@]([H])([C@@H](C)CC)C(=O)N[C@@H](CC(=O)O)C(=O)N[C@@H](CC(C)C)C(N1CCC[C@H]1C(=O)O)=O)=O)(=O)[C@H]([C@@H](C)CC)NC(=O)[C@H](CO)NC(=O)[C@H](CCCNC(N)=N)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](C)NC(=O)[C@@H](N)CO.C(F)(F)(F)C(=O)O
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| Synonyms |
Colivelin
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| HS Tariff Code |
2934.99.9001
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| Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month Note: Please store this product in a sealed and protected environment, avoid exposure to moisture. |
| Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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| Solubility (In Vitro) |
H2O : 50 mg/mL (18.12 mM)
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|---|---|
| Solubility (In Vivo) |
Solubility in Formulation 1: 6.25 mg/mL (2.27 mM) in Water with 5% sefsol and 20% isopropanol (add these co-solvents sequentially from left to right, and one by one), suspension solution; with sonication.
(Please use freshly prepared in vivo formulations for optimal results.) |
| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 0.3624 mL | 1.8122 mL | 3.6243 mL | |
| 5 mM | 0.0725 mL | 0.3624 mL | 0.7249 mL | |
| 10 mM | 0.0362 mL | 0.1812 mL | 0.3624 mL |
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.
Calculation results
Working concentration： mg/mL；
Method for preparing DMSO stock solution： mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation:：Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O，mix and clarify.
(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
(2) Be sure to add the solvent(s) in order.
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