BI-D1870 is an ATP-competitive, cell permeable and brain penetrated inhibitor ofRSKisoforms, withIC₅₀s of 31 nM/24 nM/18 nM/15 nM for RSK1/RSK2/RSK3/RSK4, respectively^{[1][2][3][4][5]}.

IC50: 31 nM (RSK1), 24 nM (RSK2), 18 nM (RSK3), 15 nM (RSK4)^[1]

BI-D1870 inhibits a mutant of RSK2 lacking the C-terminal kinase catalytic domain (RSK2^1-389:S381E) with an IC₅₀of approx. 30 nM. BI-D1870 inhibits RSK1 and RSK2 with IC₅₀values of 10 nM and 20 nM respectively, when the kinase assays are performed with 100 μM ATP. When the assays are performed at a 10-fold lower ATP concentration, the IC₅₀of BI-D1870 is reduced to 5 nM for RSK1 and 10 nM for RSK2^[1].
BI-D1870 inhibits PLK1 with an IC₅₀of 100 nM, whilst the IC₅₀values for Aurora B, DYRK1a, CDK2-A, Lck, CK1 and GSK3β are 10- to 100-fold higher than that of the RSK isoforms. BI-D1870 (10 μM) inhibits the PMA-induced phosphorylation of GSK3α and GSK3β in HEK-293 cells. In HEK-293 cells, BI-D1870 inhibits the EGF-induced phosphorylation of LKB1 at Ser431 with an IC₅₀of approx. 1 μM^[1].
BI-D1870 does not affect the activation of ERK1/ERK2 and MSK1, nor does it inhibit the phosphorylation of CREB^[1].
BI-D1870 is a potent RSK family kinase inhibitor (K_ds: 10-100 nM), and also interact with BRD4(1) and PLK family, with K_ds of 3.5 μM and appr 10 nM^[2].
BI-D1870 (10 μM) strongly induces p70S6K activation in serum-starved LN-229 cells, and alao stimulates the phosphorylation of rpS6 and p70S6K in LN-18 cells. BI-D1870 (1 μM) potently inhibits rpS6 phosphorylation, and inhibits PMA-induced rpS6 phosphorylation at concentrations higher than 1 μM^[4].
BI-D1870 (1-5 μM) induces a dose- and time-dependent inhibition of cell proliferation in all cell types. BI-D1870 (1-3 μM) induces apoptosis in SCC4 cells and HSC-3 cells. BI-D1870 (0-5) modulates cell survival signaling pathways including Akt and p38 MAPK dose-dependently^[5].

BI-D1870 (0.5 mg/kg)-injected experimental autoimmune encephalomyelitis (EAE) mice exhibits a delayed neural deficit without obvious weight loss. Histopathological analyses shows inflammatory cell infiltration and demyelination in the spinal cord in control mice, but not in BI-D1870-treated mice. BI-D1870 protects against the infiltration of TH1 or TH17 cells into the CNS^[3].

391.42

Solid

C₁₉H₂₃F₂N₅O₂

501437-28-1

Room temperature in continental US; may vary elsewhere.

DMSO : 5 mg/mL(12.77 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。-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： 10% DMSO    40%PEG300   5%Tween-80   45% saline

  Solubility: ≥ 2.5 mg/mL (6.39 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (6.39 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
• 2.

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

  Solubility: ≥ 2.5 mg/mL (6.39 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (6.39 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 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
• 3.

  请依序添加每种溶剂： 10% DMSO    90%corn oil

  Solubility: ≥ 2.5 mg/mL (6.39 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (6.39 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。