General Information of This Antibody-drug Conjugate (ADC)
ADC ID
DRG0OKMOL
ADC Name
Mil40-6
Synonyms
Mil40 6
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Drug Status
Investigative
Indication
In total 2 Indication(s)
Breast cancer [ICD11:2C60-2C65]
Investigative
Ovarian cancer [ICD11:2C73]
Investigative
Drug-to-Antibody Ratio
3.8
Structure
Antibody Name
Mil40
 Antibody Info 
Antigen Name
Receptor tyrosine-protein kinase erbB-2 (ERBB2)
 Antigen Info 
Payload Name
Active metabolite of irinotecan SN38
 Payload Info 
Therapeutic Target
DNA topoisomerase 1 (TOP1)
 Target Info 
Linker Name
Mal-PEG2-Val-Ala-PABC
 Linker Info 
Conjugate Type
The free sulfhydryl group obtained by the reduction of interchain cysteine is site-specific conjugated with maleimide, michael addition reaction.
General Information of The Activity Data Related to This ADC
Revealed Based on the Cell Line Data
Click To Hide/Show 4 Activity Data Related to This Level
Standard Type Value Units Cell Line Disease Model
Half Maximal Inhibitory Concentration (IC50) 
15.9
nM
BT474 HerDR cells
Invasive breast carcinoma
Half Maximal Inhibitory Concentration (IC50) 
320.8
nM
SK-OV-3 cells
Ovarian serous cystadenocarcinoma
Half Maximal Inhibitory Concentration (IC50) 
484.71
nM
MCF-7 cells
Invasive breast carcinoma
Half Maximal Inhibitory Concentration (IC50) 
> 1000
nM
MDA-MB-231 cells
Breast adenocarcinoma
Full List of Activity Data of This Antibody-drug Conjugate
Revealed Based on the Cell Line Data
Click To Hide/Show 4 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) 15.90 nM High HER2 expression (HER2+++)
Method Description
SKOV-3, BT474 HerDR, MDA-MB-231 and MCF-7 cells were cultured under various concentrations of Mil40, SN-38 and ADCs for 10days, 9days, 6days, and 6days, respectively. Cytotoxicity assays were established using the CellTiter-Go assay kit (CTG).
In Vitro Model Invasive breast carcinoma BT474 HerDR cells CVCL_0179
Experiment 2 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) 320.80 nM High HER2 expression (HER2+++)
Method Description
SKOV-3, BT474 HerDR, MDA-MB-231 and MCF-7 cells were cultured under various concentrations of Mil40, SN-38 and ADCs for 10days, 9days, 6days, and 6days, respectively. Cytotoxicity assays were established using the CellTiter-Go assay kit (CTG).
In Vitro Model Ovarian serous cystadenocarcinoma SK-OV-3 cells CVCL_0532
Experiment 3 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) 484.71 nM Negative HER2 expression (HER2-)
Method Description
SKOV-3, BT474 HerDR, MDA-MB-231 and MCF-7 cells were cultured under various concentrations of Mil40, SN-38 and ADCs for 10days, 9days, 6days, and 6days, respectively. Cytotoxicity assays were established using the CellTiter-Go assay kit (CTG).
In Vitro Model Invasive breast carcinoma MCF-7 cells CVCL_0031
Experiment 4 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 1000.00 nM Negative HER2 expression (HER2-)
Method Description
SKOV-3, BT474 HerDR, MDA-MB-231 and MCF-7 cells were cultured under various concentrations of Mil40, SN-38 and ADCs for 10days, 9days, 6days, and 6days, respectively. Cytotoxicity assays were established using the CellTiter-Go assay kit (CTG).
In Vitro Model Breast adenocarcinoma MDA-MB-231 cells CVCL_0062
References
Ref 1 Synthesis and evaluation of highly releasable and structurally stable antibody-SN-38-conjugates. Drug Deliv. 2021 Dec;28(1):2603-2617.

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