Home Protein Tyrosine Kinase IGF-1R inhibitor - Apoptosis related activator Picropodophyllin (PPP) For research use only.

Picropodophyllin (PPP)

Synonyms: AXL1717

Picropodophyllin (PPP, AXL1717) is a IGF-1R inhibitor with IC50 of 1 nM. It displays selectivity for IGF-1R and does not coinhibit tyrosine phosphorylation the IR, or of a selected panel of receptors less related to IGF-IR(FGF-R, PDGF-R, OR EGF-R). Picropodophyllin (PPP) induces apoptosis with antineoplastic activity.

Picropodophyllin (PPP) Chemical Structure

Picropodophyllin (PPP) Chemical Structure

CAS No. 477-47-4

Purity & Quality Control

Picropodophyllin (PPP) Related Products

Signaling Pathway

IGF-1R Signaling Pathways

IGF-1R Signaling Pathway

Cell Data

Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID
A-549 (human lung carcinoma) neoplastic cell line Cytotoxic assay In vitro cytotoxicity against the A-549 (human lung carcinoma) neoplastic cell line, IC50=60 nM 14980682
P-388 neoplastic cell line Cytotoxic assay In vitro cytotoxicity against the P-388 (from DBA/2 mouse) neoplastic cell line, IC50=60 nM 14980682
HT-29 (human colon carcinoma) neoplastic cell line Cytotoxic assay In vitro cytotoxicity against the HT-29 (human colon carcinoma) neoplastic cell line, IC50=60 nM 14980682
amnion cells Antiviral assay Antiviral activity against HSV1 infected in human primary amnion cells assessed as inhibition of virus-induced pathogenic effect, Activity = 1.9 μM. 9834179
P388 Cytotoxicity assay Cytotoxicity against mouse P388 cells, IC50 = 6 μM. 7673931
A549 Cytotoxicity assay Cytotoxicity against human A549 cells, IC50 = 6 μM. 7673931
HT-29 Cytotoxicity assay Cytotoxicity against human HT-29 cells, IC50 = 6 μM. 7673931
TC32 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for TC32 cells 29435139
DAOY qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for DAOY cells 29435139
SJ-GBM2 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for SJ-GBM2 cells 29435139
A673 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for A673 cells 29435139
SK-N-MC qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for SK-N-MC cells 29435139
NB-EBc1 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for NB-EBc1 cells 29435139
Saos-2 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for Saos-2 cells 29435139
LAN-5 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for LAN-5 cells 29435139
BT-12 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for BT-12 cells 29435139
OHS-50 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for OHS-50 cells 29435139
A673 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for A673 cells) 29435139
SK-N-MC qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for SK-N-MC cells 29435139
BT-12 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for BT-12 cells 29435139
LAN-5 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for LAN-5 cells 29435139
DAOY qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for DAOY cells 29435139
NB-EBc1 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for NB-EBc1 cells 29435139
BT-37 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for BT-37 cells 29435139
TC32 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for TC32 cells 29435139
MG 63 (6-TG R) qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for MG 63 (6-TG R) cells 29435139
U-2 OS qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for U-2 OS cells 29435139
RD qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for RD cells 29435139
Saos-2 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for Saos-2 cells 29435139
Click to View More Cell Line Experimental Data

Biological Activity

Description Picropodophyllin (PPP, AXL1717) is a IGF-1R inhibitor with IC50 of 1 nM. It displays selectivity for IGF-1R and does not coinhibit tyrosine phosphorylation the IR, or of a selected panel of receptors less related to IGF-IR(FGF-R, PDGF-R, OR EGF-R). Picropodophyllin (PPP) induces apoptosis with antineoplastic activity.
Targets
IGF-1R [1]
(Cell-free assay)
1 nM
In vitro
In vitro

In intact cells, PPP efficiently inhibits IGF-1-stimulated IGF-1R, Akt (Ser 473) and Erk1/2 phosphorylation. Picropodophyllin specifically inhibits cell growth, and induces apoptosis in cultured IGF-1R-positive tumor cells. [1] Picropodophyllin synergistically sensitizes HMCL, primary human MM and murine 5T33MM cells to ABT-737 and ABT-199 by further decreasing cell viability and enhancing apoptosis. [3] Picropodophyllin synergistically suppress the proliferation and motility of hepatocellular carcinoma cells. [4]
Kinase Assay In vitro tyrosine kinase assays.
Assay of IGF-1R-catalyzed substrate phosphorylation of pTG, using a 96-well plate tyrosine kinase assay kit, is performed. We use recombinant epidermal growth factor receptor, immunoprecipitated IR from HEPG2, immunoprecipitated IGF-1R from P6 cells, and IGF-1R immunodepleted supernatant from P6 (representing “non-IGF-1R tyrosine kinases”). After 30-min treatment of the receptors with the desired compounds in the kinase buffer [50 mM HEPES buffer (pH 7.4), 20 mM MgCl2, 0.1 MnCl2, and 0.2 Na3VO4], the kinase reaction is activated by addition of ATP. The phosphorylated polymer substrate is probed with a phosphotyrosine-specific monoclonal antibody conjugated to horseradish peroxidase, clone PT-66. Color is developed with horseradish peroxidase chromogenic substrate O-phenylenediamine dihydrochloride and quantitated by spectrophotometry (ELISA reader). IGF-1R tyrosine autophosphorylation is analyzed by a sandwich ELISA assay. Briefly, 96-well plates are coated overnight at 4°C with 1 μg/well of an antibody to IGF-1R β-subunit. The plates are blocked with 1% BSA in PBS Tween for 1 h, and then 80 μg/well of total protein lysate from the P6 cell line is added. As a negative control we use total protein lysate from the R- cell line. The investigated compounds are added in tyrosine kinase buffer without ATP at room temperature for 30 min before kinase activation with ATP. Kinase assay is performed using the Sigma kit (see above). After spectrophotometry the IC50 values of inhibitors are determined using the REGRESSION function of Statistica program.
Cell Research Cell lines Melanoma cells (FM 55, SK-MEL-28, SK-MEL-5, C8161, DFB, DFW and AA), sarcoma cells (RD-ES), breast carcinoma cells (MCF 7), prostate carcinoma cells (PC3), hepatoma cells (HepG2) and embryonic mouse fibroblasts (P6 and R-)
Concentrations ~15 μM
Incubation Time 48 hours
Method

The determinations are performed using the Cell proliferation kit II, which is based on colorimetric change of the yellow tetrazolium salt 2,3-bis[2-methoxy-4-nitro-5-sulfophenyl]-2H-tetrazolium-5-carboxanilide inner salt in orange formazan dye by the respiratory chain of viable cell. All of the standards and experiments are performed in triplicates.
Experimental Result Images Methods Biomarkers Images PMID
Western blot p-IGFR1 / p-AKT / p-ERK 22363814
Growth inhibition assay Cell viability 22159423
In Vivo
In vivo

In SCID mice xenografted with human ES-1, BE, and PC3, Picropodophyllin (20 mg/kg/12 h, i.p.) causes complete tumor regression. [1] In the 5T33MM mouse model, Picropodophyllin also shows a marked antitumor activity, and causes a significant increase in survival. [2]
Animal Research Animal Models SCID mice bearing ES-1, BE, or PC3 xenografts that express IGF-1R, or R- v-src (IGF-1R negative) and P12 (overexpressing IGF-1 and IGF-1R)
Dosages 20 mg/kg/12 h
Administration i.p.
NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT06357884 Recruiting
Diabetic Neuropathies|Plantar Callus
Chinese University of Hong Kong|Princess Margaret Hospital Hong Kong
 February 23 2024 Not Applicable
NCT05710185 Recruiting
Palmoplantar Pustulosis
Brigham and Women''s Hospital|University of Pennsylvania
 July 1 2023 Phase 4
NCT06025422 Recruiting
Diabetic Foot Ulcer|Diabetic Neuropathies
University Hospitals Leicester|University of Salford
 March 13 2023 --
NCT04433052 Recruiting
Coronary Heart Disease
Tampere University
 February 1 2023 Not Applicable
NCT05740137 Active not recruiting
Colorectal Cancer|Colorectal Adenoma|Colorectal Neoplasms
Ismail Gögenur|Nykøbing Falster County Hospital|Naestved Hospital|Holbaek Sygehus|Slagelse Hospital|Zealand University Hospital
 October 1 2022 Not Applicable

Chemical Information & Solubility

Molecular Weight 414.41 Formula

C22H22O8
CAS No. 477-47-4 SDF Download Picropodophyllin (PPP) SDF
Smiles COC1=CC(=CC(=C1OC)OC)C2C3C(COC3=O)C(C4=CC5=C(C=C24)OCO5)O
Storage (From the date of receipt)

In vitro
Batch:

DMSO : 83 mg/mL ( (200.28 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Ethanol : 1.5 mg/mL

Water : Insoluble


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In vivo
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Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

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Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Handling Instructions

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Frequently Asked Questions

Question 1:
I am currently setting the conditions for in vivo experiments, how should I reconstitute the drug?

Answer:
Other than DMSO:vegetable oil 10:1 (v/v) cited from reference. We tested another formulation: 4% DMSO+corn oil. S7668 Picropodophyllin (PPP) can be dissolved in it at 5 mg/ml clearly. But after stayed for about 20-30 min, the two phase would separate and wouldn't get together again. So if you are going to use this formulation, please prepare the fresh solution just before use.

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