Curcumin (Synonyms: 姜黃素; Diferuloylmethane; Natural Yellow 3; Turmeric yellow)
Curcumin (Diferuloylmethane)，是一種天然酚類化合物，是乙酰轉移酶 p300/CREB 結合蛋白 特異性抑制劑，抑制組蛋白/非組蛋白的乙酰化和組蛋白乙酰轉移酶依賴的染色質轉錄。Curcumin 對 NF-κb 和 MAPKs 有抑制作用，并具有抗yan、抗氧化、抗增殖和抗血管生成等多種藥理作用。Curcumin 通過 Keap1 半胱an酸修飾誘導 Nrf2 蛋白的穩定。
生物活性
Curcumin (Diferuloylmethane), a natural phenolic compound, is a p300/CREB-binding protein-specific inhibitor of acetyltransferase, represses the acetylation of histone/nonhistone proteins and histone acetyltransferase-dependent chromatin transcription. Curcumin shows inhibitory effects on NF-κB and MAPKs, and has diverse pharmacologic effects including anti-inflammatory, antioxidant, antiproliferative and antiangiogenic activities. Curcumin induces stabilization of Nrf2 protein through Keap1 cysteine modification.
IC50 & Target
Keap1-Nrf2[1], Histone acetyltransferase[6]
體外研究(In Vitro)
Curcumin exerts its chemopreventive effects partly through the activation of nuclear factor (erythroid-2 related) factor 2 (Nrf2) and its antioxidant and phase II detoxifying enzymes[1]. Curcumin inhibits T47D cells growth, with IC50s of 25, 19 and 17.5 μM for 24, 48 and 72 h MTT assays respectively. IC50s of curcumin and silibinin mixture against T47D cells, are 17.5, 15, and 12 μM for 24, 48, and 72 h exposure times, respectively[2]. Curcumin (2.5-80 μM) induces apoptotic cell death in AGS and HT-29 cell lines, and the IC50 is 21.9±0.1, 40.7±0.5 μM, respectively, in both AGS and HT-29 cell lines. Curcumin-induced apoptosis requires caspase activities in AGS and HT-29 cells. Curcumin induces ER Ca2+ decline and mitochondrial Ca2+ overloading[3]. Curcumin induces the G2/M cell cycle arrest of LNCaP and PC-3 cells in a dose dependent manner. Curcumin upregulates the protein level of NF-kappaB inhibitor IkappaBalpha and downregulates protein levels of c-Jun and AR[5].
體內研究(In Vivo)
Curcumin (10 mg/kg, p.o.) significantly prevents decrease in the percentage of sucrose consumption, as compared to the CMS-exposed rats. Curcumin treatment results in significant prevention of increase in TNF-α and IL-6 levels in stressed rats[4]. Curcumin decreases binding of p300/CREB-binding protein (CBP) at the brain-derived neurotrophic factor (BDNF) promoter at 20 mg/kg (i.p.), reduces binding of P300/CBP at the BDNF promoter at 40 mg/kg, and decreases binding all the four proteins of p300/CBP and H3K9ac/H4K5ac at the BDNF promoter at 60 mg/kg in chronic constriction injury (CCI) rats[6].
Clinical Trial
| NCT Number | Sponsor | Condition | Start Date | Phase |
|---|---|---|---|---|
| NCT01022632 | Government Medical College, Bhavnagar|Health and Family Welfare Department, Government of Gujarat, India|Arjuna Natural Extracts Ltd. | March 2009 | Not Applicable | |
| NCT00779493 | Kaiser Permanente | November 2008 | Phase 4 | |
| NCT03769766 | University of Texas Southwestern Medical Center | March 11, 2019 | Phase 3 |
分子量：368.38
性狀：Solid
Formula：
C21H20O6 |
CAS 號：458-37-7
中文名稱：姜黃素；酸性黃；姜黃色素
運輸條件：Room temperature in continental US; may vary elsewhere.
儲存方式
| Powder | -20°C | 3 years |
|---|---|---|
| 4°C | 2 years | |
| In solvent | -80°C | 6 months |
| -20°C | 1 month |
溶解性數據
DMSO : 120 mg/mL (325.75 mM; Need ultrasonic)
| 濃度溶劑體積質量 | 1 mg | 5 mg | 10 mg |
|---|
| 1 mM | 2.7146 mL | 13.5729 mL | 27.1459 mL |
| 5 mM | 0.5429 mL | 2.7146 mL | 5.4292 mL |
| 10 mM | 0.2715 mL | 1.3573 mL | 2.7146 mL |
請根據產品在不同溶劑中的溶解度選擇合適的溶劑配制儲備液；一旦配成溶液，請分裝保存，避免反復凍融造成的產品失效。
儲備液的保存方式和期限：-80°C, 6 months; -20°C, 1 month。-80°C 儲存時，請在 6 個月內使用，-20°C 儲存時，請在 1 個月內使用。
以下溶解方案都請先按照 In Vitro 方式配制澄清的儲備液，再依次添加助溶劑：
——為保證實驗結果的可靠性，澄清的儲備液可以根據儲存條件，適當保存；體內實驗的工作液，建議您現用現配，當天使用； 以下溶劑前顯示的百
分比是指該溶劑在您配制終溶液中的體積占比；如在配制過程中出現沉淀、析出現象，可以通過加熱和/或超聲的方式助溶
- 1.
請依序添加每種溶劑： 1% (w/v) carboxymethylcellulose (CMC)
Solubility: 25 mg/mL (67.86 mM); Suspension solution; Need ultrasonic
- 2.
請依序添加每種溶劑： 10% DMSO 40% PEG300 5% Tween-80 45% saline
Solubility: ≥ 3 mg/mL (8.14 mM); Clear solution
- 3.
請依序添加每種溶劑： 10% DMSO 90% (20% SBE-β-CD in saline)
Solubility: 3 mg/mL (8.14 mM); Suspended solution; Need ultrasonic
參考文獻
[1]. Gao S, et al. Curcumin attenuates arsenic-induced hepatic injuries and oxidative stress in experimental mice through activation of Nrf2 pathway, promotion of arsenic methylation and urinary excretion. Food Chem Toxicol. 2013 Jul 18. pii: S0278-6915(13)004 [Content Brief]
[2]. Nasiri M, et al. Curcumin and Silibinin Inhibit Telomerase Expression in T47D Human Breast Cancer Cells. Asian Pac J Cancer Prev. 2013;14(6):3449-53. [Content Brief]
[3]. Cao A, et all. Curcumin induces apoptosis in human gastric carcinoma AGS cells and colon carcinoma HT-29 cells through mitochondrial dysfunction and endoplasmic reticulum stress. Apoptosis. 2013 Jul 24. [Epub ahead of print] [Content Brief]
[4]. Jiang H, et al. Antidepressant-like effects of curcumin in chronic mild stress of rats: Involvement of its anti-inflammatory action. Prog Neuropsychopharmacol Biol Psychiatry. 2013 Jul 20. pii: S0278-5846(13)00150-4. [Content Brief]
[5]. Guo H, et al. Curcumin induces cell cycle arrest and apoptosis of prostate cancer cells by regulating the expression of IkappaBalpha, c-Jun and androgen receptor. Pharmazie. 2013 Jun;68(6):431-4. [Content Brief]
[6]. Zhu X, et al. Curcumin alleviates neuropathic pain by inhibiting p300/CBP histone acetyltransferase activity-regulated expression of BDNF and cox-2 in a rat model. PLoS One. 2014 Mar 6;9(3):e91303. [Content Brief]
[7]. Balasubramanyam K, et al. Curcumin, a novel p300/CREB-binding protein-specific inhibitor of acetyltransferase, represses the acetylation of histone/nonhistone proteins and histone acetyltransferase-dependent chromatin transcription. J Biol Chem. 2004 Dec [Content Brief]
[8]. Jun Wan Shin, et al. Curcumin induces stabilization of Nrf2 protein through Keap1 cysteine modification. Biochem Pharmacol. 2020 Mar;173:113820. [Content Brief]
注：產品僅用于科研
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