Catalog Number: 5264
Alternate Names: CCI-779
Chemical Name: Rapamycin 42-[3-hydroxy-2-(hydroxymethyl)-2-methylpropanoate]
Biological Activity
mTOR inhibitor; inhibits tumor growth in breast cancer cell lines (IC50 values are 1.6 and 4.3 nM for SKBr3 and BT474, respectively). Inhibits HIF-1α-mediated VEGF production in breast cancer cell lines (BT474 and MDA-MB-231). Directly inhibits serum and VEGF mediated endothelial cell proliferation and morphogenesis in vitro and vessel formation in vivo. Causes G1/S cell cycle arrest in multiple cancer cell lines. Antiangiogenic.
Technical Data
  • M.Wt:
  • Formula:
  • Solubility:
    Soluble to 100 mM in DMSO and to 100 mM in ethanol
  • Purity:
  • Storage:
    Store at -20°C
  • CAS No:
The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis. All Tocris products are intended for laboratory research use only.
Additional Information
Licensing Caveats:
Sold for research purposes under agreement from Pfizer Inc.
Background References
  1. Antiangiogenic potential of the Mammalian target of rapamycin inhibitor temsirolimus.
    Del Bufalo et al.
    Cancer Res., 2006;66:5549
  2. Effects of the mammalian target of rapamycin inhibitor CCI-779 used alone or with chemotherapy on human prostate cancer cells and xenografts.
    Wu L et al.
    Cancer Res., 2005;65:2825
  3. The novel mTOR inhibitor CCI-779 (temsirolimus) induces antiproliferative effects through inhibition of mTOR in Bel-7402 liver cancer cells.
    Li et al.
    Cancer Cell Int., 2013;13
  4. Inhibition of mammalian target of rapamycin signaling by CCI-779 (temsirolimus) induces growth inhibition and cell cycle arrest in Cashmere goat fetal fibroblasts (Capra hircus).
    Wang et al.
    DNA Cell Biol., 2012;31:1095
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