General Information of This Antibody-drug Conjugate (ADC)
ADC ID
DRG0OYPCY
ADC Name
WO2017089895A1 ADC31
Synonyms
WO2017089895A1 ADC31
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Organization
LegoChem Biosciences, Inc.
Drug Status
Investigative
Indication
In total 3 Indication(s)
Breast cancer [ICD11:2C60-2C65]
Investigative
Gastric cancer [ICD11:2B72]
Investigative
Ovarian cancer [ICD11:2C73]
Investigative
Drug-to-Antibody Ratio
4
Structure
Antibody Name
Trastuzumab
 Antibody Info 
Antigen Name
Receptor tyrosine-protein kinase erbB-2 (ERBB2)
 Antigen Info 
Payload Name
Monomethyl auristatin E
 Payload Info 
Therapeutic Target
Microtubule (MT)
 Target Info 
Linker Name
WO2017089895A1_ADC31 linker
General Information of The Activity Data Related to This ADC
Revealed Based on the Cell Line Data
Click To Hide/Show 5 Activity Data Related to This Level
Standard Type Value Units Cell Line Disease Model
Half Maximal Inhibitory Concentration (IC50) 
0.08
nM
SK-BR-3 cells
Breast adenocarcinoma
Half Maximal Inhibitory Concentration (IC50) 
0.12
nM
SK-BR-3 cells
Breast adenocarcinoma
Half Maximal Inhibitory Concentration (IC50) 
0.14
nM
SK-BR-3 cells
Breast adenocarcinoma
Half Maximal Inhibitory Concentration (IC50) 
0.24
nM
JIMT-1 cells
Breast ductal carcinoma
Half Maximal Inhibitory Concentration (IC50) 
> 33.33
nM
MCF-7 cells
Invasive breast carcinoma
Full List of Activity Data of This Antibody-drug Conjugate
Revealed Based on the Cell Line Data
Click To Hide/Show 5 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) 0.08 nM Positive HER2 expression (HER2+++/++)
Method Description
ADCs wereincubated in human plasma for 5 seconds (0h), followed by SRB invitro cytotoxicity test using SK-BR3 cells for 72hr.
In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
Experiment 2 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) 0.12 nM Positive HER2 expression (HER2+++/++)
Method Description
ADCs wereincubated in human plasma for 168 hours (168h), followed by SRB invitro cytotoxicity test using SK-BR3 cells for 72hr.
In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
Experiment 3 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) 0.14 nM Positive HER2 expression (HER2+++/++)
Method Description
Anti-proliferation activities of the antibodies, drugs, and conjugates with regard tothe cancer cell lines were measured. The cells were plated in 96-well, tissue culture platesat 10,000 cells per well. After 24 hour incubation, the antibodies, drugs, and conjugateswere added in various concentrations. The number of viable cells after 72 hours were counted using SRB assay.

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In Vitro Model Breast adenocarcinoma SK-BR-3 cells CVCL_0033
Experiment 4 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) 0.24 nM Positive HER2 expression (HER2+++/++)
Method Description
Anti-proliferation activities of the antibodies, drugs, and conjugates with regard tothe cancer cell lines were measured. The cells were plated in 96-well, tissue culture platesat 10,000 cells per well. After 24 hour incubation, the antibodies, drugs, and conjugateswere added in various concentrations. The number of viable cells after 72 hours were counted using SRB assay.

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In Vitro Model Breast ductal carcinoma JIMT-1 cells CVCL_2077
Experiment 5 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Inhibitory Concentration (IC50) > 33.33 nM Negative HER2 expression (HER2-)
Method Description
Anti-proliferation activities of the antibodies, drugs, and conjugates with regard tothe cancer cell lines were measured. The cells were plated in 96-well, tissue culture platesat 10,000 cells per well. After 24 hour incubation, the antibodies, drugs, and conjugateswere added in various concentrations. The number of viable cells after 72 hours were counted using SRB assay.

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In Vitro Model Invasive breast carcinoma MCF-7 cells CVCL_0031
References
Ref 1 Antibody-drug conjugates comprising branched linkers and methods related thereto; 2017-06-01.

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