(S)-Ro 32-0432

PKCα 9.3 nM (IC50) PKC-βI 28 nM (IC50) PKC-βII 30 nM (IC50) PKCγ 36.5 nM (IC50) PKCε 108.3 nM (IC50) G protein-coupled receptor kinase 5 (GRK5)

(S)-Ro 32-0432 抑制佛波酯与植物血凝素或抗 CD3 联合刺激的外周人 T 细胞中白介素 2 (IL-2) 的释放和 IL-2 受体的表达。然而，它对已被刺激表达 IL-2 受体的 IL-2 诱导细胞的增殖没有影响。流感肽抗原 HA 307-319 特异性人 T 细胞克隆 (HA27) 在暴露于抗原脉冲的自体呈递细胞后，也会被 (S)-Ro 32-0432 阻断增殖。 (S)-Ro 32-0432 抑制 HA27 增殖，IC50 为 0.15 μM[1]。

用 (S)-Ro 32-0432（10–50 mg/kg；口服剂量；一次；雌性 AHH/R 大鼠）治疗可预防大鼠随后佛波酯产生的水肿，表明该化合物在抑制 PKC 驱动方面具有全身有效性反应。 Ro 32-0432 还抑制更多生理驱动的 T 细胞反应的诱导，例如宿主与移植物反应以及佐剂诱导的关节炎中随后的爪水肿[1]。

蛋白激酶C（PKC）同工酶家族被认为在许多不同的细胞类型中介导了广泛的信号转导途径。一系列双吲哚基马来酰亚胺已被评估为传统PKC家族（PKCsα、β、γ）成员的抑制剂，以及新的Ca（2+）非依赖性PKC家族PKCε的代表性抑制剂。与吲哚咔唑星孢菌素相比，所有研究的双吲哚基马来酰亚胺对PKCα的选择性都比其他检测的同工酶低。此外，带有构象限制侧链的双吲哚基马来酰亚胺作为PKCε抑制剂的活性较低。其中最引人注目的是Ro 32-0432，它对PKCα的选择性是PKCε的10倍，对PKCβI的选择性是PKC-ε的4倍[Biochem J. 1993 Sep 1;294 ( Pt 2)(Pt 2):335-7]。

有几条间接证据支持这样的假设，即蛋白激酶C（PKC）激活和细胞质钙离子水平升高是T细胞激活和增殖对生理刺激（即MHC II类限制性抗原呈递）做出反应所必需的。通过使用一种强效的、细胞可渗透的、选择性的PKC抑制剂Ro 32-0432，我们检验了这一假设。Ro 32-0432抑制用佛波酯与植物血凝素或抗CD3刺激的外周人T细胞中白细胞介素-2（IL-2）的分泌、IL-2受体的表达和增殖，但不抑制已经刺激表达IL-2受体的细胞中IL-2诱导的增殖。Ro 32-0432[2]也抑制了暴露于抗原脉冲自体呈递细胞后流感肽抗原HA 307-319特异性人T细胞克隆（HA27）的增殖。[2]

Animal/Disease Models: Female AHH/R rats (200-250 g) induced with phorbol ester[1]
Doses: 10 mg/kg, 30 mg/kg, 50 mg/kg
Route of Administration: Oral administration; once
Experimental Results: Inhibited subsequent phorbol ester-induced edema in rats.

[1]. Ro 32-0432, a Selective and Orally Active Inhibitor of Protein Kinase C Prevents T-cell Activation. J Pharmacol Exp Ther. 1994 Feb;268(2):922-9.

[2]. Ro 32-0432 Attenuates Mecamylamine-Precipitated Nicotine Withdrawal Syndrome in Mice. Naunyn Schmiedebergs Arch Pharmacol. 2013 Mar;386(3):197-204.

Several lines of circumstantial evidence support the assumption that protein kinase C (PKC) activation together with elevated levels of cytosolic Ca++ are necessary for T-cell activation and proliferation in response to a physiological stimulus, i.e., MHC class II restricted antigen presentation. By using a potent, cell-permeable and selective inhibitor of PKC, Ro 32-0432, we have tested this hypothesis. Ro 32-0432 inhibits interleukin-2 (IL-2) secretion, IL-2 receptor expression in, and proliferation of, peripheral human T-cells stimulated with phorbol ester together with phytohemagglutin or anti-CD3, but does not inhibit IL-2 induced proliferation in cells already stimulated to express IL-2 receptors. Proliferation of the influenza peptide antigen HA 307-319-specific human T-cell clone (HA27) after exposure to antigen-pulsed autologous presenting cells was also inhibited by Ro 32-0432. Oral administration of Ro 32-0432 inhibited subsequent phorbol ester-induced edema in rats demonstrating the systemic efficacy of the compound to inhibit PKC-driven responses. Induction of more physiologically T-cell driven responses such as host vs. graft responses and the secondary paw swelling in adjuvant-induced arthritis were also inhibited by Ro 32-0432. These data demonstrate the crucial role for PKC in T-cell activation and that selective p.o. bioavailable PKC inhibitors are efficacious in preventing T-cell driven chronic inflammatory responses in vivo. Inhibition of PKC represents an important mechanistic approach to prevent T-cell activation and compounds of this class may have important therapeutic applicability to chronic inflammatory and autoimmune diseases.[1]

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G protein-coupled receptor kinase 5 is noted to mediate a number of signal transduction cascades involved in the causation of nicotine withdrawal syndrome. Therefore, the present study investigated the effect of Ro 32-0432, a G protein-coupled receptor kinase 5 inhibitor, on propagation of nicotine dependence and resultant withdrawal signs in subchronic nicotine mouse model. Our experimental protocol consisted of administration of nicotine, (2.5 mg/kg, subcutaneously), four times daily for 7 days. In order to precipitate nicotine withdrawal, mice were given one injection of mecamylamine (3 mg/kg, intraperitoneally) 1 h after the last nicotine injection on the test day (day 8). Behavioral observations were made for a period of 30 min immediately after mecamylamine treatment. Withdrawal syndrome was quantitated in terms of a composite withdrawal severity score, jumping frequency, nicotine-induced hyperalgesia by tail flick method, and withdrawal syndrome-related anxiety was assessed by elevated plus maze test results. Ro 32-0432 dose dependently attenuated mecamylamine-induced nicotine withdrawal syndrome in mice. It is concluded that Ro 32-0432 attenuates the propagation of nicotine dependence and reduce withdrawal signs possibly by G protein-coupled receptor kinase 5 activation-linked mechanisms.[2]

C28H29CLN4O2

488.197

C, 68.77; H, 5.98; Cl, 7.25; N, 11.46; O, 6.54

1781828-85-0

70346044

Typically exists as solid at room temperature

59.3

2

3

4

35

869

1

CN1C=C(C2=CC=CC=C21)C3=C(C(=O)NC3=O)C4=C5C[C@H](CCN5C6=CC=CC=C64)CN(C)C.Cl

HSPRASOZRZDELU-LMOVPXPDSA-N

InChI=1S/C28H28N4O2.ClH/c1-30(2)15-17-12-13-32-22-11-7-5-9-19(22)24(23(32)14-17)26-25(27(33)29-28(26)34)20-16-31(3)21-10-6-4-8-18(20)21;/h4-11,16-17H,12-15H2,1-3H3,(H,29,33,34);1H/t17-;/m0./s1

3-[(8S)-8-[(dimethylamino)methyl]-6,7,8,9-tetrahydropyrido[1,2-a]indol-10-yl]-4-(1-methylindol-3-yl)pyrrole-2,5-dione;hydrochloride

Ro 32-0432 hydrochloride; 1781828-85-0; Ro 32-0432 (hydrochloride); 3-[(8S)-8-[(dimethylamino)methyl]-6,7,8,9-tetrahydropyrido[1,2-a]indol-10-yl]-4-(1-methylindol-3-yl)pyrrole-2,5-dione;hydrochloride; SCHEMBL8321924; Ro 32-0432 HCl;

2934.99.9001

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples

注意: 如下所列的是一些常用的体内动物实验溶解配方，主要用于溶解难溶或不溶于水的产品（水溶度<1 mg/mL）。 建议您先取少量样品进行尝试，如该配方可行，再根据实验需求增加样品量。

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注射用配方1: DMSO : Tween 80： Saline = 10 : 5 : 85 (如： 100 μL DMSO → 50 μL Tween 80 → 850 μL Saline)
*生理盐水/Saline的制备：将0.9g氯化钠/NaCl溶解在100 mL ddH ₂ O中，得到澄清溶液。
注射用配方 2: DMSO : PEG300 ：Tween 80 : Saline = 10 : 40 : 5 : 45 (如： 100 μL DMSO → 400 μL PEG300 → 50 μL Tween 80 → 450 μL Saline)
注射用配方 3: DMSO : Corn oil = 10 : 90 (如： 100 μL DMSO → 900 μL Corn oil)
示例: 以注射用配方 3 (DMSO : Corn oil = 10 : 90) 为例说明, 如果要配制 1 mL 2.5 mg/mL的工作液, 您可以取 100 μL 25 mg/mL 澄清的 DMSO 储备液，加到 900 μL Corn oil/玉米油中, 混合均匀。

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注射用配方 4: DMSO : 20% SBE-β-CD in Saline = 10 : 90 [如：100 μL DMSO → 900 μL (20% SBE-β-CD in Saline)]
*20% SBE-β-CD in Saline的制备（4°C，储存1周）：将2g SBE-β-CD (磺丁基-β-环糊精) 溶解于10mL生理盐水中，得到澄清溶液。
注射用配方 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (如： 500 μL 2-Hydroxypropyl-β-cyclodextrin (羟丙基环胡精)→ 500 μL Saline)
注射用配方 6: DMSO : PEG300 : Castor oil : Saline = 5 : 10 : 20 : 65 (如： 50 μL DMSO → 100 μL PEG300 → 200 μL Castor oil → 650 μL Saline)
注射用配方 7: Ethanol : Cremophor : Saline = 10： 10 : 80 (如： 100 μL Ethanol → 100 μL Cremophor → 800 μL Saline)
注射用配方 8: 溶解于Cremophor/Ethanol (50 : 50), 然后用生理盐水稀释。
注射用配方 9: EtOH : Corn oil = 10 : 90 (如： 100 μL EtOH → 900 μL Corn oil)
注射用配方 10: EtOH : PEG300：Tween 80 : Saline = 10 : 40 : 5 : 45 (如： 100 μL EtOH → 400 μL PEG300 → 50 μL Tween 80 → 450 μL Saline)

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口服配方 1: 悬浮于0.5% CMC Na (羧甲基纤维素钠)
口服配方 2: 悬浮于0.5% Carboxymethyl cellulose (羧甲基纤维素)
示例: 以口服配方 1 (悬浮于 0.5% CMC Na)为例说明, 如果要配制 100 mL 2.5 mg/mL 的工作液, 您可以先取0.5g CMC Na并将其溶解于100mL ddH2O中，得到0.5%CMC-Na澄清溶液；然后将250 mg待测化合物加到100 mL前述 0.5%CMC Na溶液中，得到悬浮液。

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口服配方 3: 溶解于 PEG400 (聚乙二醇400)
口服配方 4: 悬浮于0.2% Carboxymethyl cellulose (羧甲基纤维素)
口服配方 5: 溶解于0.25% Tween 80 and 0.5% Carboxymethyl cellulose (羧甲基纤维素)
口服配方 6: 做成粉末与食物混合

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注意: 以上为较为常见方法，仅供参考， InvivoChem并未独立验证这些配方的准确性。具体溶剂的选择首先应参照文献已报道溶解方法、配方或剂型，对于某些尚未有文献报道溶解方法的化合物，需通过前期实验来确定（建议先取少量样品进行尝试），包括产品的溶解情况、梯度设置、动物的耐受性等。

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请根据您的实验动物和给药方式选择适当的溶解配方/方案：
1、请先配制澄清的储备液(如：用DMSO配置50 或 100 mg/mL母液(储备液));
2、取适量母液，按从左到右的顺序依次添加助溶剂，澄清后再加入下一助溶剂。以 下列配方为例说明 (注意此配方只用于说明，并不一定代表此产品 的实际溶解配方):
10% DMSO → 40% PEG300 → 5% Tween-80 → 45% ddH2O (或 saline);
假设最终工作液的体积为 1 mL, 浓度为5 mg/mL: 取 100 μL 50 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中，混合均匀/澄清；向上述体系中加入50 μL Tween-80，混合均匀/澄清；然后继续加入450 μL ddH2O (或 saline)定容至 1 mL；
3、溶剂前显示的百分比是指该溶剂在最终溶液/工作液中的体积所占比例;
4、 如产品在配制过程中出现沉淀/析出，可通过加热(≤50℃)或超声的方式助溶;
5、为保证最佳实验结果，工作液请现配现用！
6、如不确定怎么将母液配置成体内动物实验的工作液，请查看说明书或联系我们;
7、 以上所有助溶剂都可在 Invivochem.cn网站购买。