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GNF 5837

A Potent pan-Trk (Neurotrophin Receptor) Inhibitor

Cat #: G-145
Lyophilized Powder yes
  • Bioassay Tested
  • Source Synthetic
    MW: 535.49
    Purity: >95%
    Form Lyophilized powder.
    Effective concentration 1 nM - 10 µM.
    Chemical name (Z)-1-(3-(3-((1H-pyrrol-2-yl)methylene)-2-oxoindolin-6-ylamino)-4-
    Molecular formula C28H21F4N5O2.
    CAS No.: 1033769-28-6
    Activity GNF 5837 displays antiproliferative effects in cellular Ba/F3 assays (IC50 values are 7, 9 and 11 nM for cells containing the fusion proteins Tel-TrkC, Tel-TrkB and Tel-TrkA, respectively)1.
    1. Albaugh, P. et al. (2012) ACS Med. Chem. Lett. 3, 140.
    Shipping and storage Shipped at room temperature. Product as supplied can be stored intact at room temperature for several weeks. For longer periods, it should be stored at -20°C.
    Solubility 40 mM in DMSO. Centrifuge all product preparations before use (10000 x g for 1 min).
    Storage of solutions Up to four weeks at 4°C or three months at -20°C.
    Our bioassay
    • Alomone Labs GNF 5837 inhibits BDNF induced ERK1/2 MAPK phosphorylation in TrkB stably expressed in HEK 293 cells.
      Alomone Labs GNF 5837 inhibits BDNF induced ERK1/2 MAPK phosphorylation in TrkB stably expressed in HEK 293 cells.
      Cells were serum deprived for 2 hrs followed by a 10 min stimulation with 10 ng/ml Recombinant human BDNF protein (#B-250) (lane 2), 10 and 100 µM GNF 5837 (#G-145) preincubated with 10 ng/ml Recombinant human BDNF protein for 10 min (lanes 3 and 4, respectively). Control cells incubated without Recombinant human BDNF protein are shown in lane 1. Cell proteins were resolved by SDS-PAGE and detected with anti-phospho-ERK1/2.
    References - Scientific background
    1. Reichardt, L.F. (2006) Philos. Trans. R. Soc. Lond. B. Biol. Sci. 361, 1545.
    2. Rich, R.L. and Myszka, D.G. (2010) J. Mol. Recognit. 23, 1.
    3. Berry, A. et al. (2012) Neural. Plast. 2012, 784040.
    4. Albaugh, P. et al. (2012) ACS Med. Chem. Lett. 3, 140.
    5. Hondermarck, H. (2012) Cytokine Growth Factor Rev. 23, 357.
    Scientific background

    Three tropomyosin-related kinase (TrkA, TrkB, and TrkC) receptors bind the following neurotrophic factors with varied affinities: nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), neurotrophin-3 (NT-3), and neurotrophin-4 (NT-4); BDNF and NT-4 activate TrkB, while NGF and NT-3 activate TrkA and TrkC; NT-3 also activates the other two TRKs, albeit more weakly. After ligand binding, TRKs form dimers, and the subsequent kinase activation results in transphosphorylation of tyrosine residues which in turn enable the binding of cytoplasmic proteins that exhibit phosphotyrosine-binding (PTB) or Src-homology-2 (SH2) domains, such as phospholipase C (PLC-gamma1), p85 and Shc1-3.

    GNF-5837 is a novel oxindole urea inhibitor of TRKs. With exceptional binding affinity to TrkA, TrkB, and TrkC (IC50 = 0.011, 0.009, and 0.007 μM/L, respectively), GNF-5837 is a pan-TRK inhibitor that has enhanced selectivity for TRKs, and demonstrates efficiency in mammalian models of tumor. Many carcinomas – not necessarily nerve tissue-related - involve TRK signaling by NTs; GNF-5837 can therefore have useful application in cancer research in addition to other of its many other uses in many biological research branches4,5.

    Target TrkA, TrkB, TrkC receptors
    Last update: 06/11/2022

    GNF 5837 (#G-145) is a highly pure, synthetic, and biologically active compound.

    For research purposes only, not for human use
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