General Information of This Peptide-drug Conjugate (PDC)
PDC ID
PDC_02142
PDC Name
MAHNP-Dox conjugate
PDC Status
Investigative
Indication
In total 1 Indication(s)
Breast cancer
Structure
Peptide Name
AHNP
 Peptide Info 
Receptor Name
Receptor tyrosine-protein kinase erbB-2 (ERBB2)
 Receptor Info 
Drug Name
Doxorubicin
 Drug Info 
Therapeutic Target
DNA topoisomerase 2-alpha (TOP2A)
 Target Info 
Linker Name
Glutaric acid
 Linker Info 
Peptide Modified Type
Cyclization modification
Modified Segment
Side-chain cyclization
ChEBI ID
2883.094
Full List of Activity Data of This Peptide-drug Conjugate
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Data of This PDC [1]
Indication Breast cancer
Efficacy Data Half maximal inhibitory concentration (IC50)
110.1 ± 12.7 nM
Administration Time 48 h
Evaluation Method MTT assay
MOA of PDC
You et al. developed a unique approach for the treatment of human epidermal growth factor receptor 2 (HER2)-positive breast cancer. A peptide fragment from the heavy chain 3 of the full-length antibody trastuzumab was obtained and termed AHNP. The 12-mer AHNP binds the extracellular domain of HER2 with high affinity and displays similar potency as trastuzumab. The peptide mimetic AHNP was then conjugated via an MMP-2 sensitive linker with doxorubicin (Dox) to form MAHNP-Dox conjugate essentially using ester/amide bonds.

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Description
Conjugate MAHNP-Dox was compared to Dox using HER2 positive breast cancer cell lines BT474 and SKBR3. Cellular toxicity analysis showed that MAHNP-Dox was more potent than free Dox, as indicated by lower IC50 values for both cell lines. The BT474 and SKBR3 cell lines had an IC50 of 746.8 ± 81.5 nM and 110.1 ± 12.7 nM for MAHNP-DOX and 2075.0 ± 368.0 nM and 172.9 ± 19.2 nM for Dox, respectively.

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Experiment 2 Reporting the Activity Data of This PDC [1]
Indication Breast cancer
Efficacy Data Half maximal inhibitory concentration (IC50)
746.8 ± 81.5 nM
Administration Time 48 h
Evaluation Method MTT assay
MOA of PDC
You et al. developed a unique approach for the treatment of human epidermal growth factor receptor 2 (HER2)-positive breast cancer. A peptide fragment from the heavy chain 3 of the full-length antibody trastuzumab was obtained and termed AHNP. The 12-mer AHNP binds the extracellular domain of HER2 with high affinity and displays similar potency as trastuzumab. The peptide mimetic AHNP was then conjugated via an MMP-2 sensitive linker with doxorubicin (Dox) to form MAHNP-Dox conjugate essentially using ester/amide bonds.

   Click to Show/Hide
Description
Conjugate MAHNP-Dox was compared to Dox using HER2 positive breast cancer cell lines BT474 and SKBR3. Cellular toxicity analysis showed that MAHNP-Dox was more potent than free Dox, as indicated by lower IC50 values for both cell lines. The BT474 and SKBR3 cell lines had an IC50 of 746.8 ± 81.5 nM and 110.1 ± 12.7 nM for MAHNP-DOX and 2075.0 ± 368.0 nM and 172.9 ± 19.2 nM for Dox, respectively.

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References
Ref 1 Peptide-Drug Conjugates with Different Linkers for Cancer Therapy. J Med Chem. 2021 Jan 14;64(1):216-232. doi: 10.1021/acs.jmedchem.0c01530. Epub 2020 Dec 31.