RO4929097

Catalog No.S1575 Batch:S157507

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Technical Data

Formula

C22H20F5N3O3
Molecular Weight 469.4 CAS No. 847925-91-1
Solubility (25°C)* In vitro DMSO 94 mg/mL (200.25 mM)
Ethanol 50 mg/mL (106.51 mM)
Water Insoluble
* <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.)

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Biological Activity

Description RO4929097 (RG-4733) is a γ secretase inhibitor with IC50 of 4 nM in a cell-free assay, inhibiting cellular processing of Aβ40 and Notch with EC50 of 14 nM and 5 nM, respectively. Phase 2.
Targets
γ secretase [1]
(Cell-free assay)		 Notch [1]
(Cell-free assay)		 Aβ40 [1]
(Cell-free assay)
4 nM 5 nM 14 nM
In vitro RO4929097 decreases the amount of Aβ peptides secreted into the culture medium in HEK293 cells with EC50 of 14 nM. RO4929097 strongly inhibits Notch processing with EC50 of 5 nM in the Notch cell-based reporter assay. The potency of RO4929097 in cell-free and cellular assays is in the low nanomolar range with >100-fold selectivity observed with respect to 75 other proteins of various types including receptors, ion channels, and enzymes (CEREP panel). After 5 days of treatment, RO4929097 reduces the production of ICN in the human NSCLC A549 cells inducing a flattened and less transformed tumor cell phenotype in tissue culture. [1] RO4929097 blocks Notch processing in human non-small cell lung carcinoma cells and decreases expression of the Notch transcriptional target gene Hes1. Treatment with RO4929097 reveals a two- to threefold decrease in the expression of direct Notch target genes, Hes1, Hey1, and Heyl in SUM149 and a 3.5- to eightfold decrease in expression in SUM190 cells. RO4929097 modestly inhibits the growth of SUM149 cells in a dose-dependent manner. At a concentration of 1 μM of RO4929097, growth inhibition is 20 % for SUM149 and 10 % for SUM190 cells, relative to vehicle-treated controls. RO4929097 decreases the production of inflammatory cytokines by T-cells. Furthermore, with RO4929097 treatment, there is a shift in favor of TH2 over TH1 cytokines. In addition, T-cell activation induced IL-6 production would be increased with RO4929097. [2] Upon RO4929097 treatment, the selected melanoma cell lines reveals downregulation of NOTCH downstream effector HES1. A decrease in the amount of melanospheres formed upon RO4929097 treatment in primary melanoma cell lines is detected. [3]
In vivo Oral injection of 3 to 60 mg/kg RO4929097 once daily or twice daily to nude mice bearing A549 NSCLC xenografts for either 7, 14, or 21 days of a 21-day schedule results in significant tumor growth inhibition compared with vehicle-treated animals. The tumor growth inhibition values ranges from 66% to 91%. When mice are treated with 60 mg/kg RO4929097 twice daily with the 7+/14- schedule, treatment initially arouses regression of established A549 tumors. At the end of the 21-day cycle (day 47), tumor growth prevention is still 91% compared with vehicle control mice. Inhibition of tumor growth remains prolonged and sustained up to 34 days post-treatment (day 67). On day 67, these mice are retreated with the same dose of RO4929097 for a second cycle (7 days) until day 74. Importantly, the antitumor effects are sustained after dosing is completed. [1] RO4929097 leads to reduced expression of genes associated with angiogenesis in A549 xenograft model. In contrast, the RO4929097-resistant H460a xenograft displays little change in expression of these genes, underscoring the in vivo anti-angiogenesis mechanism of action of RO4929097.[2] For IL6 and IL8 overexpressing tumors, RO4929097 no longer impacts angiogenesis or the infiltration of tumor associated fibroblasts. [4]

Protocol (from reference)

Kinase Assay:[5]
  • In vitro potency assays

    After RO4929097 is used, the Aβ peptides are measured by ECL assays using a variety of anti-Aβ antibodies and an Origen 1.5 Analyzer. The 4G8 murine mAb binds an epitope in the Aβ peptide (within amino acids 18–21) that is immediately distal to the α-secretase cleavage site. The G2–10 murine mAb binds the C terminus that is exposed after γ-secretase-mediated cleavage to generate amino acid 40 of the Aβ40 peptide. The FCA3542 rabbit antibody binds the C terminus that is exposed after γ-secretase-mediated cleavage to generate amino acid 42 of the Aβ42 peptide. The 4G8 mAb is biotinylated with biotin-LC-sulfo-N-hydroxysuccinimide-ester. The G2–10 and FCA3542 antibodies are ruthenylated with TAG-N-hydroxysuccinimide ester. Aβ(x-40) is detected with biotinylated 4G8 and ruthenylated G2–10. Aβ(x-42) is detected with biotinylated 4G8 and ruthenylated FCA3542.
Cell Assay:[3]
  • Cell lines

    WM35 and WM98.1 cell lines

  • Concentrations

    10 μM

  • Incubation Time

    DMSO

  • Method

    Primary melanoma cell lines, including WM35 and WM98.1, are seeded at 2.5 × 103 cells per well on a 12-well dish in triplicate. The day after (day 0), the medium is replaced, and DMSO or 10 μM RO4929097 is added and changed every 3-4 days. At the indicated time points, cells are fixed in 10% formalin solution and stored in PBS at 4 °C. At day 18-24, all the plates are stained with crystal violet. After color elution with 10% acetic acid, optical density is read at 590 nm.
Animal Study:[1]
  • Animal Models

    Female nude mice bearing Calu-6 cells

  • Dosages

    3 to 60 mg/kg

  • Administration

    Oral administration

Customer Product Validation

Data from [Stem Cells, 2014, 32(1), 301-12]

Data from [Stem Cells, 2014, 32(1), 301-12]

, 2012, Dr. Barbara Bedogni of Case Western Reserve University

Data from [Data independently produced by , , Nat Commun, 2016, 7:13616]

Selleck's RO4929097 has been cited by 126 publications

Targeting endothelial PDGFR-β facilitates angiogenesis-associated bone formation through the PAK1/NICD axis [ J Cell Physiol, 2024, 10.1002/jcp.31291] PubMed: 38721633
Xenogenic Engraftment of Human-Induced Pluripotent Stem Cell-Derived Pancreatic Islet Cells in an Immunosuppressive Diabetic Göttingen Mini-Pig Model [ Cell Transplant, 2024, 33:9636897241288932] PubMed: 39401129
Novel Anti-B-cell Maturation Antigen Alpha-Amanitin Antibody-drug Conjugate HDP-101 Shows Superior Activity to Belantamab Mafodotin and Enhanced Efficacy in Deletion 17p Myeloma Models [ Res Sq, 2024, rs.3.rs-3843028] PubMed: 38260385
MYL3 protects chondrocytes from senescence by inhibiting clathrin-mediated endocytosis and activating of Notch signaling [ Nat Commun, 2023, 14(1):6190] PubMed: 37794006
MYL3 protects chondrocytes from senescence by inhibiting clathrin-mediated endocytosis and activating of Notch signaling [ Nat Commun, 2023, 14(1):6190] PubMed: 37794006
Simultaneous Inhibition of Ceramide Hydrolysis and Glycosylation Synergizes to Corrupt Mitochondrial Respiration and Signal Caspase Driven Cell Death in Drug-Resistant Acute Myeloid Leukemia [ Cancers (Basel), 2023, 15(6)1883] PubMed: 36980769
Elucidation of HHEX in pancreatic endoderm differentiation using a human iPSC differentiation model [ Sci Rep, 2023, 13(1):8659] PubMed: 37248264
Low-dose metformin targets the lysosomal AMPK pathway through PEN2 [ Nature, 2022, 603(7899):159-165] PubMed: 35197629
Inhibition of LSD1 with bomedemstat sensitizes small cell lung cancer to immune checkpoint blockade and T cell killing [ Clin Cancer Res, 2022, CCR-22-1128] PubMed: 35920742
NOTCH induced MDSC recruitment after oHSV virotherapy in CNS cancer models modulates anti-tumor immunotherapy [ Clin Cancer Res, 2022, clincanres.2347.2021] PubMed: 35022322

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SHIPPING AND STORAGE
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