General Information of This Peptide-drug Conjugate (PDC)
PDC ID
PDC_00071
PDC Name
c[DKP-RGD]-PEG4-sC18(dau=Aoa-GFLG-Lys8)
PDC Status
Investigative
Indication
In total 1 Indication(s)
Tumor
Structure
Peptide Name
c[DKP-RGD]-PEG4-sC18
 Peptide Info 
Drug Name
Daunorubicin
 Drug Info 
Therapeutic Target
DNA topoisomerase 2-alpha (TOP2A)
 Target Info 
Linker Name
GFLG
 Linker Info 
Peptide Modified Type
The modification of binding with chemical macromolecules
Modified Segment
c[DKP-RGD]
Ternimal Modification
N-terminal modification
Formula
C181H284N54O47
#Ro5 Violations (Lipinski): 5 Molecular Weight 3968.594
Lipid-water partition coefficient (xlogp) -13.30773
Hydrogen Bond Donor Count (hbonddonor) 51
Hydrogen Bond Acceptor Count (hbondacc) 60
Rotatable Bond Count (rotbonds) 131
Full List of Activity Data of This Peptide-drug Conjugate
Revealed Based on the Cell Line Data
Click To Hide/Show 6 Activity Data Related to This Level
Experiment 1 Reporting the Activity Data of This PDC [1]
Indication Tumor
Efficacy Data Half Maximal Effective Concentration (EC50)
2.7 μM
Administration Time 72 h
Description
All dau-loaded conjugates showed high toxicity in all cell lines tested with EC50 values in the lower micromolar range.
In Vitro Model Invasive breast carcinoma MCF-7 cell CVCL_0031
Experiment 2 Reporting the Activity Data of This PDC [1]
Indication Tumor
Efficacy Data Half Maximal Effective Concentration (EC50)
3.9 μM
Administration Time 72 h
Description
All dau-loaded conjugates showed high toxicity in all cell lines tested with EC50 values in the lower micromolar range.
In Vitro Model Glioblastoma U87 cell CVCL_3429
Experiment 3 Reporting the Activity Data of This PDC [1]
Indication Tumor
Efficacy Data Half Maximal Effective Concentration (EC50)
7.8 μM
Administration Time 15 min
Description
More specifically, compounds1band3bdemonstrated significantly higher activity against U87 cells compared to MCF-7 and HT-29 cells (Figure6). Importantly,1bwas more active than3bdemonstrating that the attached CPP is indeed necessary to increase the overall cellular uptake and thus cytotoxic activity of the conjugates. Of note is also that2bwas less efficient than1bbut marginally more active than3b, although with no selectivity. For the two conjugates bearing the GFLG motif, it was seen that3cis still significantly more active in U87 cells expressing integrin receptors. By contrast,1ckept its selectivity against HT-29 cells, but was pronouncedly more active in MCF-7 cells compared to1b.

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In Vitro Model Invasive breast carcinoma MCF-7 cell CVCL_0031
Experiment 4 Reporting the Activity Data of This PDC [1]
Indication Tumor
Efficacy Data Half Maximal Effective Concentration (EC50)
11 μM
Administration Time 72 h
Description
All dau-loaded conjugates showed high toxicity in all cell lines tested with EC50 values in the lower micromolar range.
In Vitro Model Colon cancer HT29 cell CVCL_A8EZ
Experiment 5 Reporting the Activity Data of This PDC [1]
Indication Tumor
Efficacy Data Half Maximal Effective Concentration (EC50)
23.8 μM
Administration Time 15 min
Description
More specifically, compounds1band3bdemonstrated significantly higher activity against U87 cells compared to MCF-7 and HT-29 cells (Figure6). Importantly,1bwas more active than3bdemonstrating that the attached CPP is indeed necessary to increase the overall cellular uptake and thus cytotoxic activity of the conjugates. Of note is also that2bwas less efficient than1bbut marginally more active than3b, although with no selectivity. For the two conjugates bearing the GFLG motif, it was seen that3cis still significantly more active in U87 cells expressing integrin receptors. By contrast,1ckept its selectivity against HT-29 cells, but was pronouncedly more active in MCF-7 cells compared to1b.

   Click to Show/Hide
In Vitro Model Glioblastoma U87 cell CVCL_3429
Experiment 6 Reporting the Activity Data of This PDC [1]
Indication Tumor
Efficacy Data Half Maximal Effective Concentration (EC50)
89.1 μM
Administration Time 15 min
Description
More specifically, compounds1band3bdemonstrated significantly higher activity against U87 cells compared to MCF-7 and HT-29 cells (Figure6). Importantly,1bwas more active than3bdemonstrating that the attached CPP is indeed necessary to increase the overall cellular uptake and thus cytotoxic activity of the conjugates. Of note is also that2bwas less efficient than1bbut marginally more active than3b, although with no selectivity. For the two conjugates bearing the GFLG motif, it was seen that3cis still significantly more active in U87 cells expressing integrin receptors. By contrast,1ckept its selectivity against HT-29 cells, but was pronouncedly more active in MCF-7 cells compared to1b.

   Click to Show/Hide
In Vitro Model Colon cancer HT29 cell CVCL_A8EZ
References
Ref 1 Kiss and Run: Promoting Effective and Targeted Cellular Uptake of a Drug Delivery Vehicle Composed of an Integrin-Targeting Diketopiperazine Peptidomimetic and a Cell-Penetrating Peptide. Bioconjug Chem. 2019 Jul 17;30(7):2011-2022. doi: 10.1021/acs.bioconjchem.9b00292. Epub 2019 Jun 19.