BI-D1870

Catalog No.S2843 Batch:S284302

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Technical Data

Formula

C19H23F2N5O2
Molecular Weight 391.42 CAS No. 501437-28-1
Solubility (25°C)* In vitro DMSO 78 mg/mL (199.27 mM)
Water Insoluble
Ethanol Insoluble
In vivo (Add solvents to the product individually and in order)
Homogeneous suspension
CMC-NA
≥5mg/ml Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution
5%DMSO 40%PEG300 5%Tween80 50%ddH2O

Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.

 1.250mg/ml (3.19mM) Taking the 1 mL working solution as an example, add 50 μL 25 mg/ml clarified DMSO stock solution to 400 μL PEG300, mix evenly to clarify it; add 50 μL Tween80 to the above system, mix evenly to clarify it; then continue to add 500 μL ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results. 
* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
* Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

Preparing Stock Solutions

Biological Activity

Description BI-D1870 is an ATP-competitive inhibitor of S6 ribosome for RSK1/2/3/4 with IC50 of 31 nM/24 nM/18 nM/15 nM in cell-free assays, respectively; 10- to 100-fold selectivity for RSK than MST2, GSK-3β, MARK3, CK1 and Aurora B. This compound exhibits anticancer attributes including the generation of reactive oxygen species (ROS) and increases in endoplasmic reticulum (ER) stress and autophagy.
Targets
RSK4 [1]
(Cell-free assay)		 RSK3 [1]
(Cell-free assay)		 RSK2 [1]
(Cell-free assay)		 RSK1 [1]
(Cell-free assay)
15 nM 18 nM 24 nM 31 nM
In vitro

BI-D1870 inhibits RSK1, RSK2, RSK3 and RSK4 with an IC50 of 10–30 nM, but does not significantly inhibit ten other AGC kinase members and over 40 other protein kinases tested at 100-fold higher concentrations. This compound is cell permeant and prevents the RSK-mediated phorbol ester- and EGF -induced phosphorylation of glycogen synthase kinase-3β and LKB1 in human embryonic kidney 293 cells and Rat-2 cells. It does not affect the agonist-triggered phosphorylation of substrates for six other AGC kinases. Moreover, this chemical does not suppress the phorbol ester- or EGF-induced phosphorylation of CREB. [1]

Protocol (from reference)

Kinase Assay:

[2]
  • Protein kinase assays

    Purified His6–RSK1, His6–RSK2 or GST–RSK2 1–389:S381E (1–2 units/mL) are assayed for 10 min at 30 °C in a 50 μL assay mixture in Buffer A containing 30 μM substrate peptide (KEAKEKRQEQIAKRRRLSSLRASTSKSGGSQK), 10 mM magnesium acetate and 100 μM of [γ-32P]ATP. Reactions are terminated and analysed as described previously. The amount of enzyme that catalysed the phosphorylation of 1 nmol of substrate peptide in 1 min is termed one unit. In order to assay RSK and MSK1 in HEK-293 or Rat-2 cell lysates, these kinases are immunoprecipitated from the cell lysates (0.1 mg of lysate protein for RSK and 0.3 mg for MSK1) and for RSK assays the immunoprecipitates are washed twice with Buffer A containing 1 mM ATP and twice with Buffer A prior to the assay, as a precaution to ensure dissociation of this compound from the RSK isoforms.
Animal Study:

[3]
  • Animal Models

    C57/BL6J mice

  • Dosages

    0.5 mg/kg

  • Administration

    i.p.

References

  • http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1698666/
  • https://pubmed.ncbi.nlm.nih.gov/17040210/
  • https://pubmed.ncbi.nlm.nih.gov/26386981/

Customer Product Validation

Expressions of active forms of all p90RSK isoforms were assessed by immunoblotting in Control vs. GR cells following treatment with increasing concentrations of BI-D1870 for 24 hours. Actin was included as a loading control.

Data from [ , , Mol Cancer Ther, 2017, 16(5):793-804 ]

(g) Changes of UBE2R1 expression in cells treated with an RSK inhibitor, BI-D1870, for 6 h.

Data from [ , , Sci Rep, 2016, 6:36134. ]

HeLa cells were serum starved for 24 h, and then were treated with MK2206 (1 μM), rapamycin (Rapa; 100 nM), PP242 (1 μM), BEZ235 (0.5 μM), U0126 (U0; 15 μM), BI-D1870 (BI; 10 μM), GNE-652 (1 μM), AZD1208 (3 μM), and the indicated inhibitor combinations for 3 h before insulin (1 g/ml) was added for an additional 30 min. Cell lysates were analyzed by immunoblot assays using the indicated antibodies.

Data from [ , , Mol Cell Biol, 2014, 34(13): 2517-32 ]

Serum-starved N41/OX1R cells were treated with 50 nM orexin-A for 1 h with or without 1 or 10 μM BI-D1870. Phosphorylation of S6K and S6 as well as MEK1/2, RSK, and Erk1/2 were evaluated by Western blotting.

Data from [ , , J Biol Chem, 2014, 289(46): 31950-9 ]

Selleck's BI-D1870 Has Been Cited by 61 Publications

The cytoplasmic domain of the pseudoprotease iRhom2 mediates distinct signaling mechanisms to control activation of the cell surface protease ADAM17 [ J Biol Chem, 2025, 301(10):110643] PubMed: 40885391
Targeting the p90RSK/MDM2/p53 Pathway Is Effective in Blocking Tumors with Oncogenic Up-Regulation of the MAPK Pathway Such as Melanoma and Lung Cancer [ Cells, 2024, 13(18)1546] PubMed: 39329730
Ribosomal S6 kinase 2-forkhead box protein O4 signaling pathway plays an essential role in melanogenesis [ Sci Rep, 2024, 14(1):9440] PubMed: 38658799
p90RSK pathway inhibition synergizes with cisplatin in TMEM16A overexpressing head and neck cancer [ BMC Cancer, 2024, 24(1):233] PubMed: 38373988
Multiplex single-cell chemical genomics reveals the kinase dependence of the response to targeted therapy [ Cell Genom, 2024, 4(2):100487] PubMed: 38278156
The ribosomal protein S6 kinase alpha-1 (RPS6KA1) induces resistance to venetoclax/azacitidine in acute myeloid leukemia [ Leukemia, 2023, 37(8):1611-1625] PubMed: 37414921
The ribosomal protein S6 kinase alpha-1 (RPS6KA1) induces resistance to venetoclax/azacitidine in acute myeloid leukemia [ Leukemia, 2023, 37(8):1611-1625] PubMed: 37414921
Conjugated Bile Acids Promote Lymphangiogenesis by Modulation of the Reactive Oxygen Species-p90RSK-Vascular Endothelial Growth Factor Receptor 3 Pathway [ Cells, 2023, 12(4)526] PubMed: 36831193
Conjugated Bile Acids Promote Lymphangiogenesis by Modulation of the Reactive Oxygen Species-p90RSK-Vascular Endothelial Growth Factor Receptor 3 Pathway [ Cells, 2023, 12(4)526] PubMed: 36831193
LRG1 is a novel HER3 ligand to promote growth in colorectal cancer [ bioRxiv, 2023, PPR618443 ] PubMed: none

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SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.

NOT FOR HUMAN, VETERINARY DIAGNOSTIC OR THERAPEUTIC USE.