Cyclopamine

Catalog No.S1146 Batch:S114611

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Technical Data

Formula

C27H41NO2
Molecular Weight 411.62 CAS No. 4449-51-8
Solubility (25°C)* In vitro Ethanol 15 mg/mL (36.44 mM)
DMSO 6.25 mg/mL (15.18 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 Cyclopamine (11-deoxojervine) is a specific Hedgehog (Hh) signaling pathway antagonist of Smoothened (Smo) with IC50 of 46 nM in TM3Hh12 cells.
Targets
Smoothened [1]
(TM3Hh12 cells)
46 nM
In vitro Cyclopamine inhibits the Hedgehog signaling pathway with an IC50 of 46 nM, and blocks the activity of human Smo receptor expressed in CHO-K1 cells in [3H]Hh-Ag binding assay with an IC50 of 280 nM. [1] Cyclopamine significantly inhibits Hedgehog pathway activity in a dose-dependent manner in gut-derived tumor cell lines expressing Patched (PTCH) mRNA, and induces growth inhibition of those tumor cell lines by 75-95% at the concentration of 3 μM, but ineffective towards the colon tumor cells without PTCH mRNA expression, suggesting the effects of Cyclopamine treatment are Hedgehog pathway related rather than generally cytotoxic. [2] By blocking Hedgehog signaling through direct interaction with Smo, Cyclopamine (10 μM) inhibits the proliferation of SMOhigh Cyclopamine-responsive cell lines L3.6sl and Panc 05.04 by 75-80%, and increases the apoptosis by 2.5- to 3.5-fold, without affecting the BxPC3-SMOlow cell line. [3] Cyclopamine treatment significantly decreases of Snail mRNA and increasea E-cadherin transcripts in the E3LZ10.7 cell line. Independent of inhibition of cell growth, Cyclopamine treatment significantly inhibits the invasive phenotype of Hedgehog-dependent L3.6pl cells, causing a >500-fold reduction in the number of transmigrating cells, but not that of the Hedgehog-independent cell line Panc-1. [4]
In vivo Administration of Cyclopamine at dose of 50 mg/kg/day for 22 days eradicates the HUCCT1 xenografts in mice with no obvious adverse effects. [2] Cyclopamine treatment at dose of 1.2 mg for 7 days induces significant apoptosis of tumor cells and decreases the tumor mass by 50-60% in Panc 05.04- and L3.6sl-derived tumors, respectively, but not in the BxPC3-SMOlow tumors. [3] Administration of Cyclopamine alone profoundly inhibits tumor metastases in xenografts of E3LZ10.7 and L3.6pl, and completely abrogates metastases when in combination of gemcitabine. [4]

Protocol (from reference)

Kinase Assay:[1]
  • Hedgehog cell assay

    This assay measures the end stage of the Hh signaling pathway, that is, the transcriptional modulation of Gli, using Luciferase as readout (Gli-Luc assay). Cyclopamine is prepared for assay by serial dilution in DMSO and then added to empty assay plates. TM3Hh12 cells (TM3 cells containing Hh-responsive reporter gene construct pTA-8xGli-Luc) are resuspended in F12 Ham's/DMEM (1:1) containing 5% FBS and 15 mM Hepes pH 7.3, added to assay plates and incubated with Cyclopamine for approximately 30 minutes at 37 °C in 5% CO2. 1 nM Hh-Ag 1.5 is then added to assay plates and incubated at 37 °C in the presence of 5% CO2. After 48 hours, either Bright-Glo or MTS reagent is added to the assay plates and luminescence or absorbance at 492 nm is determined. IC50 value, defined as the inflection point of the logistic curve, is determined by non-linear regression of the Gli-driven luciferase luminescence or absorbance signal from MTS assay vs log10 (concentration) of Cyclopamine using the R statistical software pack
Cell Assay:[2]
  • Cell lines

    SEG1, OE33, KYAE, KYSE180, SNU1, AGS, SNU16, NCI-N-87, HUCCT1, PANC1, PL5, PL6, BXPC3, HS766T, KYSE150, GBD1, DLD1, and HCT116

  • Concentrations

    Dissolved in DMSO, final concentration 3 μM

  • Incubation Time

    4 days

  • Method

    Cells are exposed to Cyclopamine in 96-well plates. Cell viability is measured by MTS (soluble tetrazolium salt) assay. Viable cell mass is determined by optical density measurements at 490 nm (OD490) at 2 and 4 days using the CellTiter96 colorimetric assay. Relative growth is calculated as OD (day 4)﹣OD (day 2)/OD (day 2).
Animal Study:[2]
  • Animal Models

    Athymic (nude) mice inoculated subcutaneously with HUCCT1 cells

  • Dosages

    50 mg/kg/day

  • Administration

    Subcutaneous injection

Customer Product Validation

Data from [Cancer Res, 2012, 72, 2262-74]

Data from [Cancer Lett, 2012, 322, 169-176]

Data from [Exp Hematol, 2012, 40, 418-27]

, , Dr. Yong-Weon Yi from Georgetown University Medical Center

Selleck's Cyclopamine has been cited by 146 publications

Phosphorylation of human glioma-associated oncogene 1 on Ser937 regulates Sonic Hedgehog signaling in medulloblastoma [ Nat Commun, 2024, 15(1):987] PubMed: 38307877
Establishment, characterization, and biobanking of 36 pancreatic cancer organoids: prediction of metastasis in resectable pancreatic cancer [ Cell Oncol (Dordr), 2024, 10.1007/s13402-024-00939-5] PubMed: 38619751
Transcription of microRNAs is regulated by developmental signaling pathways and transcription factors [ Front Cell Dev Biol, 2024, 12:1356589] PubMed: 38721525
PTCH1-mutant human cerebellar organoids exhibit altered neural development and recapitulate early medulloblastoma tumorigenesis [ Dis Model Mech, 2024, 17(2)dmm050323] PubMed: 38411252
The silent information regulator 1 agonist SRT1720 reduces experimental intracerebral hemorrhagic brain injury by regulating the blood-brain barrier integrity [ Neuroreport, 2024, 35(11):679-686] PubMed: 38874950
Human osteoarthritic chondrocytes up-regulate the expression of osteoprotegerin in osteoblasts via the Indian hedgehog signaling pathway [ Chinese Journal of Tissue Engineering Research, 2024, Vol. 28 ›› Issue (26): 4194-4201.] PubMed: none
Hedgehog receptors exert immune-surveillance roles in the epidermis across species [ Cell Rep, 2023, 42(8):112929] PubMed: 37527037
Sonic Hedgehog and WNT Signaling Regulate a Positive Feedback Loop Between Intestinal Epithelial and Stromal Cells to Promote Epithelial Regeneration [ Cell Mol Gastroenterol Hepatol, 2023, 16(4):607-642] PubMed: 37481204
Sonic Hedgehog and WNT Signaling Regulate a Positive Feedback Loop Between Intestinal Epithelial and Stromal Cells to Promote Epithelial Regeneration [ Cell Mol Gastroenterol Hepatol, 2023, 16(4):607-642] PubMed: 37481204
Proteomic analysis across patient iPSC-based models and human post-mortem hippocampal tissue reveals early cellular dysfunction and progression of Alzheimer's disease pathogenesis [ Acta Neuropathol Commun, 2023, 11(1):150] PubMed: 37715247

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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.

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