Sialorphin TFA
Based on 1 Customer Validation
Sialorphin TFA is a neutral endopeptidase (NEP) and aminopeptidase N (APN) inhibitor that responds to androgen signals. Sialorphin TFA blocks the degradation of endogenous opioid peptides and interacts with μ-, δ-, κ-opioid receptors. Sialorphin TFA regulates the ERK/mTOR signaling pathway by inducing cell cycle arrest, enhancing ERK1/2 activity, and reducing the phosphorylation levels of mTOR, 4E-BP1, p70S6K; accordingly, Sialorphin TFA exhibits antiproliferative activity against colorectal cancer, glioma and prostate cancer cells without cytotoxicity. In addition, Sialorphin TFA also produces antinociceptive responses, regulates sexual behavior, relaxes corpus cavernosum smooth muscle, and alleviates experimental colitis. Sialorphin TFA is also a copper (II) ion-binding ligand. Sialorphin TFA has been used in mechanistic studies related to cancer, pain management and inflammatory bowel disease.
商品は「研究用試薬」です。人や動物の医療用・臨床診断用・食品用の製品ではありません。
研究用途以外に使用した場合、当社は一切の責任を負いかねます。
- 分子式: C26H42N12O8·xC2HF3O2
- 分子量:650.69 (free base)
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保管条件:
Sealed storage, away from moisture.
Powder -80°C, 2 years , -20°C, 1 year* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Opioid Receptor アイソフォーム固有の製品をすべて表示
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生物活性
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ERK1 |
ERK2 |
μ Opioid Receptor/MOR |
κ Opioid Receptor/KOR |
δ Opioid Receptor/DOR |
Sialorphin (10 μM; 20 min) inhibits the degradation of Met-enkephalin (ME) in rat spinal cord slices with an inhibition rate of 70%-96%, and simultaneously inhibits the hydrolysis of 3H-SP in spinal cord tissues (membranes or slices) with an inhibition rate of 55%. Its IC50 for inhibiting 3H-SP degradation is 3.9×10-7 M[1].
Sialorphin (400 nM-4000 nM; 10-20 min) exerts a concentration-dependent inhibitory effect on endopeptidase-mediated hydrolysis of 3H-SP in rat renal cell membranes, with an IC50 of 1 μM. This inhibition is competitive and comparable in efficacy to that of phosphoramidon[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Cell Line:Rat spinal cord slice cells
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Concentration:4, 10 μM
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Incubation Time:20 min
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Result:Effectively prevented the breakdown of exogenous ME by spinal enkephalinase ex vivo, with an inhibition rate ranging from 70% to 96%.
Inhibited the endoproteolysis of 3H-SP by rat renal membranes with a correlation coefficient (r) of 0.970.
At 4 μM, inhibited 60% of the specific SP - hydrolyzing activity of rat kidney tissue, which was as effective as phosphoramidon.
Sialorphin TFA (1 mg/kg; i.p.; twice daily; 7 days) significantly attenuates chronic, relapsing TNBS-induced colitis in mice, as measured by reduced clinical, biochemical, histological, and cytokine markers of inflammation[2].
Sialorphin TFA (1 mg/kg; i.p.; twice daily; 7 days) does not exhibit anti-inflammatory activity in DSS-induced colitis in mice[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:BALB/c (male, 6-8 weeks old, 22-26 g, intracolonic instillation of TNBS to induce acute colitis)[2]
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Dosage:0.3 mg/kg; 1 mg/kg; 3 mg/kg; 10 mg/kg
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Administration:i.p.; twice daily; 3 days
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Result:Significantly reduced macroscopic colonic damage scores, ulcer scores, colonic wall thickness, and myeloperoxidase (MPO) activity at 0.3, 1, and 3 mg/kg compared to TNBS-only controls.
Significantly reduced ulcer scores and colonic wall thickness, but did not reduce MPO activity, and only non-significantly reduced total macroscopic scores (p=0.09) at 10 mg/kg compared to TNBS-only controls.
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Animal Model:BALB/c mice with Inflammatory bowel disease (male, 6-8 weeks old, 22-26 g, 4% wt/vol DSS in drinking water to induce colitis)[2]
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Dosage:1 mg/kg
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Administration:i.p.; twice daily; 7 days
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Result:Significantly reduced macroscopic colonic damage scores, ulcer scores, colonic wall thickness, and MPO activity compared to TNBS-only controls.
Reduced body weight loss, decreased colon expression of pro-inflammatory cytokines TNFα and IL-1β, and lowered histological colon damage scores (reduced mucosal architecture destruction, smooth muscle thickening, crypt abscesses, and cellular infiltration) compared to TNBS-only controls.
Did not reduce any evaluated parameters of colitis, including macroscopic damage scores, colon weight, colon length, MPO activity, or body weight loss, compared to DSS-only controls.
化学情報
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性状 Solid
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分子量 650.69 (free base)
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分子式 C26H42N12O8·xC2HF3O2
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配列
Gln-His-Asn-Pro-Arg
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シーケンスの短縮
QHNPR
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輸送条件
Room temperature in continental US; may vary elsewhere.
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保管条件
Sealed storage, away from moisture
Powder -80°C 2 years -20°C 1 year * In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
溶剤 & 溶解度
H2O : 100 mg/mL (Need ultrasonic)
純度とドキュメンテーション
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データシート (286 KB)
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SDS (252 KB)
- Français - FR (252 KB)
- Deutsch - DE (252 KB)
- Norwegian - NO (252 KB)
- Español - ES (252 KB)
- Swedish - SV (252 KB)
- Italian - IT (252 KB)
- Korean - KR (252 KB)
- Portuguese - PT (252 KB)
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取扱説明書 (2659 KB)
参考文献
[1]. Rougeot C, et al. Sialorphin, a natural inhibitor of rat membrane-bound neutral endopeptidase that displays analgesic activity. Proc Natl Acad Sci U S A. 2003;100(14):8549-8554. [Content Brief]
[2]. Salaga M, et al. Systemic Administration of Sialorphin Attenuates Experimental Colitis in Mice via Interaction With Mu and Kappa Opioid Receptors. J Crohns Colitis. 2017;11(8):988-998. [Content Brief]
[4]. Kamysz E, et al. Antitumor activity of opiorphin, sialorphin and their conjugates with a peptide klaklakklaklak. J Pept Sci. 2016;22(11-12):723-730. [Content Brief]
Calculators
濃度 (開始) × 体積 (開始) = 濃度 (終了) × 体積 (終了)
- Sialorphin
- Enteropeptidase
- Aminopeptidase
- Opioid Receptor
- ERK
- mTOR
- Androgen Receptor
- copper(II) ion
- δ-opioid receptors
- glioma cancer cells
- colorectal cancer cells
- aminopeptidase N (APN)
- μ-opioid receptors
- κ-opioid receptors
- Neutral endopeptidase (NEP)
- prostate cancer cells
- normal human fibroblasts
- Inhibitor
- inhibitor
- inhibit