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品質等級
化驗
≥97% (HPLC)
形狀
powder
顏色
white to beige
溶解度
DMSO: 10 mg/mL, clear
儲存溫度
2-8°C
SMILES 字串
CC1(C)C([C@@H](O)C[C@]2([H])C1=CC[C@]([C@@](C[C@@H](O)[C@]3([H])[C@@](C)(O)C(/C=C/C(C)(C)OC(C)=O)=O)(C)[C@]3(C)C4)([H])[C@@]2(C)C4=O)=O
InChI
1S/C32H46O8/c1-17(33)40-27(2,3)13-12-23(36)32(9,39)25-21(35)15-29(6)22-11-10-18-19(14-20(34)26(38)28(18,4)5)31(22,8)24(37)16-30(25,29)7/h10,12-13,19-22,25,34-35,39H,11,14-16H2,1-9H3/b13-12+/t19-,20+,21-,22+,25+,29+,30-,31+,32+/m1/s1
InChI 密鑰
IXQKXEUSCPEQRD-DKRGWESNSA-N
應用
葫芦素B水合物已被用于：
- 作为转录活化因子3 (stat3) 抑制剂的信号转导分子和激活剂，用于测定其对人溶酶体酸脂肪酶（hLAL）在骨髓来源的抑制性细胞 (MDSC) 中表达的影响。
- 作为脱皮素受体 (EcR) 拮抗剂注射液，用于降低蝴蝶中29-羟基脱皮素 (20E) 的信号传导水平
- 用于确定其对胰腺癌细胞系细胞活力的作用。
生化／生理作用
葫芦素B是葫芦科植物物种的一种三萜类成分。葫芦素B可通过诱导细胞凋亡和在G2/M期诱导细胞周期停滞，从而抑制多种肿瘤细胞系（IC50 15-30nM）的增殖。尽管其作用机制尚不清楚，但葫芦素B可抑制STAT3的磷酸化和表达水平，并已显示出阻断JAK2的活性。葫芦素B也可抑制HIF1a和Nf-KB的转录活性。葫芦素B在结构上与JAK抑制剂Curcubitacin I类似。
葫芦素B通过抑制乳腺癌中的端粒酶和c-Myc而显示抗癌活性。它还具有很高的抗动脉粥样硬化活性。葫芦素B也具有消炎和抗微生物活性。
特點和優勢
这种化合物是激酶磷酸酶生物学研究的特色产品。点击此处发现更多特色激酶磷酸酶生物产品。在sigma.com/discover-bsm可了解更多关于生物活性小分子的其他研究领域。
訊號詞
Danger
危險聲明
危險分類
Acute Tox. 2 Oral
儲存類別代碼
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
水污染物質分類（WGK）
WGK 3
閃點（°F）
Not applicable
閃點（°C）
Not applicable
其他客户在看
Sumana Dakeng et al.
Journal of cellular biochemistry, 113(1), 49-60 (2011-08-26)
The cucurbitacins are tetracyclic triterpenes found in plants of the family Cucurbitaceae. Cucurbitacins have been shown to have anti-cancer and anti-inflamatory activities. We investigated the anti-cancer activity of cucurbitacin B extracted from Thai medicinal plant Trichosanthes cucumerina Linn. Cell viability
Ping Lu et al.
Cancer biotherapy & radiopharmaceuticals, 27(8), 495-503 (2012-07-04)
The aberrant activation of the JAK2/STAT3 signaling in immature myeloid dendritic cells (DCs) is associated with immune tolerance and poor antitumor immunity. The objective of this study was to test the hypothesis that Cucurbitacin B (CuB), a selective inhibitor of
Cytotoxic Effect of Bitter Melon (Momordica charantia L.) Ethanol Extract and Its Fractions on Pancreatic Cancer Cells in vitro
Richmond, et al.
Exploratory research and hypothesis in medicine, 2, 139-139 (2017)
Moltira Promkan et al.
PloS one, 8(2), e55732-e55732 (2013-02-09)
Cucurbitacin B (CuB) is one of the potential agents for long term anticancer chemoprevention. Cumulative evidences has shown that cucurbitacin B provides potent cellular biological activities such as hepatoprotective, anti-inflammatory and antimicrobial effects, but the precise mechanism of this agent
Meixia Zhang et al.
Pancreas, 39(6), 923-929 (2010-02-26)
Pancreatic cancer is a serious disease worldwide for its high mortality. Gemcitabine has become the frontline option for the treatment of this disease since its approval. However, resistance to the drug has been on the rise in recent years. Searching
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