e-2

Estradiol (E2) 是一种天然的类固醇性激素，对于女性生育能力和第二性征的维持至关重要。Estradiol 通过雌激素受体 β (ERβ) 上调 IL-6 表达。

Mezigdomide (CC-92480) 是一种有效的、新型的 、具有选择性的和具有活性的cereblon E3 泛素连接酶调节剂(CELMoD)，常以分子胶的方式发挥作用。Mezigdomide 具有抗骨髓瘤活性。[1]

Prostaglandin E2 (PGE2) 是一种天然激素样物质，参与平滑肌的收缩与松弛、血管的扩张与收缩、血压调节及炎症调节等多种生理功能，可用于诱导神经病理性疼痛模型。

BAY 11-7082 (BAY 11-7821) 是一种 NF-κB 抑制剂，可抑制 TNFα 诱导的 IκBα 磷酸化 (IC50=10 μM)。BAY 11-7082 也是一种泛素特异性蛋白酶 USP7 和 USP21 的抑制剂 (IC50=0.19/0.96 μM)。

Pevonedistat (MLN4924) 是一种 NEDD8 活化酶 (NAE) 抑制剂 (IC50=4.7 nM)，具有有效性和选择性。Pevonedistat 可以用于骨髓增生异常综合症 (MDS)的治疗，也具有抗肿瘤活性。

Estredox (E2 CDS) 是一种基于氧化还原的雌二醇 (E2) 化学输送系统。E2-CDS 能够持续且大脑选择性地输送雌二醇。

Cbl-b-IN-3是一种有效的casitas b 系淋巴瘤原癌基因-b (Cbl-b)抑制剂（ic50 < 1 nM）。

SAR405838 (MI 773) 是 MI-773 的类似物，具有抗肿瘤活性。它是一种高效、选择性的MDM2-p53相互作用抑制剂，与 MDM2 结合的Ki 值为 0.88 nM。

NSC-697923（2-[(4-甲基苯基)磺酰]-5-硝基呋喃），作为一种高效的UBE2N（泛素结合酶E2 N，Ubc13）抑制剂，通过两种不同机制诱导神经母细胞瘤（NB）细胞的死亡。在p53野生型NB细胞中，NSC-697923促进p53的核内输入，从而触发细胞死亡。同时，在p53突变型NB细胞中，NSC-697923激活JNK介导的凋亡途径，导致细胞死亡。此外，NSC-697923还抑制DNA损伤和NF-κB信号传导，进一步增强其抗肿瘤活性。

Camonagrel 是一种化合物，对Prostaglandin E2具有抑制作用。

Indole-3-carbinol (I3C) 是樟子松中的一种天然产物，是可口服的硫代葡萄糖苷葡糖苷酶裂解产物。它是芳烃受体 (AhR) 的激动剂，可抑制 NF-κB 和 IκBα 激酶活化。

YH239-EE 是 YH239 的乙酯，是 p53-MDM2 拮抗剂和凋亡诱导剂。

Nutlin-3b ((+)-Nutlin-3) 是一种 p53/MDM2 拮抗剂或抑制剂，IC50为 13.6 μM。它与 MDM2 的结合活性比 Nutlin-3a 低 150 倍。

ETHYL 2-AMINO-4-METHYL-5-PHENYLTHIOPHENE-3-CARBOXYLATE 靶向前列腺素 E2受体 EP2亚型（人）。

16,16-Dimethyl prostaglandin E2 is an orally active vertebrate Hematopoietic stem cells homeostasis critical regulator. It can act through EP2/EP4 and has an interaction with the Wnt pathway.

Levuglandin E2 is a secoprostanoid from prostaglandin endoperoxide.

Resolvin E2 (RvE2) is a member of the specialized pro-resolving mediator (SPM) family of bioactive lipids.1It is produced from eicosapentaenoic acidviaan 18-HEPE intermediate, which is formed by aspirin-acetylated COX-2-mediated oxidation of EPA, by 5-lipoxygenase (5-LO) in human polymorphonuclear (PMN) neutrophils.2,3RvE2 (20 ng/animal) inhibits increases in inflammatory exudate neutrophil infiltration in a mouse model of peritonitis induced by zymosan A .3Hepatic RvE2 levels are increased in mice fed normal chow, as well as in a mouse model of high-fat diet-induced non-alcoholic fatty liver disease (NAFLD), by dietary supplementation with EPA.4Plasma levels of RvE2 are increased by dietary supplementation with fish oil containing ω-3 polyunsaturated fatty acids (PUFAs) in patients with peripheral artery disease or chronic kidney disease.1,5,6 1.Chiang, N., and Serhan, C.N.Specialized pro-resolving mediator network: An update on production and actionsEssays Biochem.64(3)443-462(2020) 2.Tjonahen, E., Oh, S.F., Siegelman, J., et al.Resolvin E2: Identification and anti-inflammatory actions: Pivotal role of human 5-lipoxygenase in resolvin E series biosynthesisChemistry & Biology131193-1202(2006) 3.Sungwhan, F.O., Pillai, P.S., Recchiuti, A., et al.Pro-resolving actions and stereoselective biosynthesis of 18S E-series resolvins in human leukocytes and murine inflammationJ. Clin. Invest.121(2)569-581(2011) 4.Echeverría, F., Valenzuela, R., Espinosa, A., et al.Reduction of high-fat diet-induced liver proinflammatory state by eicosapentaenoic acid plus hydroxytyrosol supplementation: Involvement of resolvins RvE1/2 and RvD1/2J. Nutr. Biochem.6335-43(2019) 5.Ramirez, J.L., Gasper, W.J., Khetani, S.A., et al.Fish oil increases specialized pro-resolving lipid mediators in PAD (the OMEGA-PAD II trial)J. Surg. Res.238164-174(2019) 6.Barden, A.E., Shinde, S., Burke, V., et al.The effect of n-3 fatty acids and coenzyme Q10 supplementation on neutrophil leukotrienes, mediators of inflammation resolution and myeloperoxidase in chronic kidney diseaseProstaglandins Other Lipid Mediat.1361-8(2018)

Enzymatically-derived prostaglandin E2 (PGE2) is an optically pure compound whereas PGE2 derived from the free radical-catalyzed peroxidation of arachidonate is a racemic mixture. Ent-PGE2 is the opposite enantiomer of PGE2. Significant amounts of racemic PGE2 (rac-PGE2) are generated in vitro and in vivo in settings of oxidative stress via the isoprostane pathway. A proposed mechanism for the formation of rac-PGE2 involves the base catalyzed equilibration from 15-E2t-isoprostane (8-iso-PGE2), generated from the 15-H2t-isoprostane endoperoxide.

1a,1b-dihomo Prostaglandin E2 (PGE2) is a rare polyunsaturated fatty acid first identified in extracts of sheep vesicular gland microsomes, known to contain COX, incubated with adrenic acid . 1a,1b-dihomo PGE2 has also been identified in conditioned media of RAW 264.7 macrophages stimulated with endotoxin and arachidonic acid . This product is thought to be produced by elongation of AA to adrenic acid, which is then metabolized sequentially by COX and PGE synthase.

11β-PGE2 is the C-11 epimer of PGE2. It is a moderate inhibitor of PGE2 binding to rat hypothalamic membranes with a Ki value of 53 nM.[1] 11β-PGE2 also stimulates bone resorption in rats at concentrations of 10-8 to 10-6 M which is similar to PGE2.2 11β-PGE2 inhibits PGE2 binding to the prostaglandin transporter protein with a Ki of 56 nM.[3] .

15(S)-15-methyl PGE2 is a potent, metabolically stable analog of PGE2. It is a potent gastric antisecretory and antiulcer compound. 15(S)-15-methyl PGE2 binds to human myometrium with twice the affinity of PGE2 and is ten times more potent than PGE1 in contracting uterine smooth muscle.

8-iso PGE2 is one of several isoprostanes produced from arachidonic acid during lipid peroxidation. It is a potent renal vasoconstrictor in the rat. 8-iso PGE2 inhibits U-46619 or I-BOP-induced platelet aggregation with IC50 values of 0.5 and 5 μM, respectively. When infused into the renal artery of the rat at a concentration of 4 μg/kg/min, 8-iso PGE2 decreases the GFR and renal plasma flow by 80% without affecting blood pressure.

8-iso PGE2 isopropyl ester is a more lipophilic form of the free acid, 8-iso PGE2. Prostaglandin esters have enhanced lipid solubility compared to their parent compounds. They are generally hydrolyzed to the free acid upon in vivo administration, making the esters useful prodrugs. In general, the C-1 esters of prostaglandins show greatly diminished agonist activity in vitro compared to the parent free acids.

8-iso Prostaglandin E2 (8-iso PGE2) is one of several isoprostanes produced from polyunsaturated fatty acids during lipid peroxidation. 8-iso-16-cyclohexyl-tetranor PGE2 is a synthetic analog of 8-iso PGE2. There are no published studies on the pharmacological properties of 8-iso-16-cyclohexyl-tetranor PGE2.