Ibrutinib (PCI-32765) is a selective, irreversibleBtkinhibitor with anIC₅₀of 0.5 nM^[1].

IC50: 0.5 nM (Btk)

Ibrutinib (PCI-32765) selectively inhibits B-cell signaling and activation. It inhibits autophosphorylation of Btk (IC₅₀=11 nM), phosphorylation of Btk's physiological substrate PLCγ (IC₅₀=29 nM), and phosphorylation of a further downstream kinase, ERK (IC₅₀=13 nM)^[1].
Ibrutinib (PCI-32765) inhibits BCR-activated primary B cell proliferation (IC₅₀=8 nM). Following FcγR stimulation, Ibrutinib (PCI-32765) inhibits TNFα, IL-1β and IL-6 production in primary monocytes (IC₅₀=2.6, 0.5, 3.9 nM, respectively)^[3].
Ibrutinib binds C481 (Cysteine481) of BTK with an ideal IC₅₀of 0.5 nM. Ibrutinib cannot form a covalent bond with the hydroxyl group of serine, C481S mutation increases the IC₅₀against BTK-C481S phosphorylation from 2.2 nM to 1 μM^[4].

Ibrutinib (PCI-32765) (3.125-50 mg/kg, p.o.) reduces the level of circulating autoantibodies and completely suppresses disease in mice with collagen-induced arthritis. Ibrutinib (PCI-32765) inhibits autoantibody production and the development of kidney disease in the MRL-Fas(lpr) lupus model. Ibrutinib (PCI-32765) (3.125-50 mg/kg, p.o.) reduces renal disease and autoantibody production in MRL-Fas(lpr) mice^[1]. Ibrutinib (PCI-32765) (0.1 μM) inhibits activation-induced proliferation of CLL cells, induces selective cytotoxicity in B cells compared with T cells, but alters activation induced T-cell cytokine production^[2]. Ibrutinib (PCI-32765) dose-dependently and potently reverses arthritic inflammation in a therapeutic CIA model with an ED₅₀of 2.6 mg/kg/day. Ibrutinib (PCI-32765) also prevents clinical arthritis in CAIA models^[3].

440.50

Solid

C₂₅H₂₄N₆O₂

936563-96-1

依鲁替尼；伊布鲁替尼；伊布替尼

Room temperature in continental US; may vary elsewhere.

4°C, protect from light

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

DMSO : 100 mg/mL(227.01 mM;Need ultrasonic)

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℃, 6 months; -20℃, 1 month (protect from light)。-80℃ 储存时，请在 6 个月内使用，-20℃ 储存时，请在 1 个月内使用。

请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照In Vitro方式配制澄清的储备液，再依次添加助溶剂：

——为保证实验结果的可靠性，澄清的储备液可以根据储存条件，适当保存；体内实验的工作液，建议您现用现配，当天使用； 以下溶剂前显示的百
分比是指该溶剂在您配制终溶液中的体积占比；如在配制过程中出现沉淀、析出现象，可以通过加热和/或超声的方式助溶

• 1.

  请依序添加每种溶剂： 0.5% MC  0.5%Tween-80

  Solubility: 3.33 mg/mL (7.56 mM); Suspension solution; Need ultrasonic
• 2.

  请依序添加每种溶剂： 5% DMSO    95% (20%SBE-β-CDin saline)

  Solubility: ≥ 2.75 mg/mL (6.24 mM); Clear solution
• 3.

  请依序添加每种溶剂： 10% DMSO    40%PEG300   5%Tween-80   45% saline

  Solubility: ≥ 2.5 mg/mL (5.68 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (5.68 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中，混合均匀；向上述体系中加入50 μL Tween-80，混合均匀；然后继续加入 450 μL生理盐水定容至 1 mL。

  将 0.9 g 氯化钠，完全溶解于 100 mL ddH2O 中，得到澄清透明的生理盐水溶液
• 4.

  请依序添加每种溶剂： 10% DMSO    90% (20%SBE-β-CDin saline)

  Solubility: 2.5 mg/mL (5.68 mM); Suspended solution; Need ultrasonic

  此方案可获得 2.5 mg/mL (5.68 mM) 的均匀悬浊液，悬浊液可用于口服和腹腔注射。

  以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL20% 的 SBE-β-CD 生理盐水水溶液中，混合均匀。

  将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中，再用生理盐水定容至 10 mL，完全溶解，澄清透明
• 5.

  请依序添加每种溶剂： 10% DMSO    90%corn oil

  Solubility: ≥ 2.5 mg/mL (5.68 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (5.68 mM，饱和度未知) 的澄清溶液，此方案不适用于实验周期在半个月以上的实验。

  以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。