ROC-0929
目录号 : GC64306
ROC-0929 (compound 13a) 是一种有效且选择性的分泌型磷脂酶 A2 (sPLA2s) 抑制剂。其IC50值为 80 nM，特异性靶点为hGX。ROC-0929 抑制 ERK1/2 和 p-38 的磷酸化。分泌型磷脂酶 A2 (sPLA2s) 是富含二硫键的 Ca2+ 依赖性酶家族，可水解甘油磷脂的 sn-2 位以释放脂肪酸和溶血磷脂。ROC-0929具有研究炎症相关疾病的潜力。
Cas No.:1048660-43-0
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
ROC-0929 (compound 13a) is a potent and selective inhibitor of secreted phospholipases A2 (sPLA2s) with an IC50 of 80 nM, specially targeting hGX. ROC-0929 inhibits the phosphorylation of ERK1/2 and p-38. Secreted phospholipases A2 (sPLA2s) are a family of disulfide-rich, Ca2+-dependent enzymes that hydrolyze the sn-2 position of glycero-phospholipids to release a fatty acid and a lysophospholipid. ROC-0929 has the potential for researching inflammation related diseases[1].
[1]. Oslund RC, et al. Highly specific and broadly potent inhibitors of mammalian secreted phospholipases A2. J Med Chem. 2008;51(15):4708-4714. [2]. Hallstrand TS, et al. Endogenous secreted phospholipase A2 group X regulates cysteinyl leukotrienes synthesis by human eosinophils. J Allergy Clin Immunol. 2016;137(1):268-277.e8.
| Cas No. | 1048660-43-0 | SDF | Download SDF |
| 分子式 | C30H31N3O6S | 分子量 | 561.65 |
| 溶解度 | DMSO : 12.5 mg/mL (22.26 mM; ultrasonic and warming and heat to 60°C) | 储存条件 | Store at -20°C |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 1.7805 mL | 8.9023 mL | 17.8047 mL |
| 5 mM | 0.3561 mL | 1.7805 mL | 3.5609 mL |
| 10 mM | 0.178 mL | 0.8902 mL | 1.7805 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Endogenous secreted phospholipase A2 group X regulates cysteinyl leukotrienes synthesis by human eosinophils
J Allergy Clin Immunol 2016 Jan;137(1):268-277.e8.PMID:26139511DOI:PMC4695325
Background: Phospholipase A2s mediate the rate-limiting step in the formation of eicosanoids such as cysteinyl leukotrienes (CysLTs). Group IVA cytosolic PLA2α (cPLA2α) is thought to be the dominant PLA2 in eosinophils; however, eosinophils also have secreted PLA2 (sPLA2) activity that has not been fully defined. Objectives: To examine the expression of sPLA2 group X (sPLA2-X) in eosinophils, the participation of sPLA2-X in the formation of CysLTs, and the mechanism by which sPLA2-X initiates the synthesis of CysLTs in eosinophils. Methods: Peripheral blood eosinophils were obtained from volunteers with asthma and/or allergy. A rabbit polyclonal anti-sPLA2-X antibody identified sPLA2-X by Western blot. We used confocal microscopy to colocalize the sPLA2-X to intracellular structures. An inhibitor of sPLA2-X (ROC-0929) that does not inhibit other mammalian sPLA2s, as well as inhibitors of the mitogen-activated kinase cascade (MAPK) and cPLA2α, was used to examine the mechanism of N-formyl-methionyl-leucyl-phenylalanine (fMLP)-mediated formation of CysLT. Results: Eosinophils express the mammalian sPLA2-X gene (PLA2G10). The sPLA2-X protein is located in the endoplasmic reticulum, golgi, and granules of eosinophils and moves to the granules and lipid bodies during fMLP-mediated activation. Selective sPLA2-X inhibition attenuated the fMLP-mediated release of arachidonic acid and CysLT formation by eosinophils. Inhibitors of p38, extracellular-signal-regulated kinases 1/2 (p44/42 MAPK), c-Jun N-terminal kinase, and cPLA2α also attenuated the fMLP-mediated formation of CysLT. The sPLA2-X inhibitor reduced the phosphorylation of p38 and extracellular-signal-regulated kinases 1/2 (p44/42 MAPK) as well as cPLA2α during cellular activation, indicating that sPLA2-X is involved in activating the MAPK cascade leading to the formation of CysLT via cPLA2α. We further demonstrate that sPLA2-X is activated before secretion from the cell during activation. Short-term priming with IL-13 and TNF/IL-1β increased the expression of PLA2G10 by eosinophils. Conclusions: These results demonstrate that sPLA2-X plays a significant role in the formation of CysLTs by human eosinophils. The predominant role of the enzyme is the regulation of MAPK activation that leads to the phosphorylation of cPLA2α. The sPLA2-X protein is regulated by proteolytic cleavage, suggesting that an inflammatory environment may promote the formation of CysLTs through this mechanism. These results have important implications for the treatment of eosinophilic disorders such as asthma.