Antibody ID	ANI0JSSAN
Antibody Name	Anti-HER2 mAb H32
Antibody Type	Monoclonal antibody (mAb)
Antibody Subtype	Humanized IgG
Antigen Name	Receptor tyrosine-protein kinase erbB-2 (ERBB2)					Antigen Info

Experiment 1 Reporting the Activity Date of This ADC					[1]
Efficacy Data	Half Maximal Inhibitory Concentration (IC50)	0.02 nM	High HER2 expression (HER2 +++)
Method Description	To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model	Invasive breast carcinoma	BT-474 cells		CVCL_0179
Experiment 2 Reporting the Activity Date of This ADC					[1]
Efficacy Data	Half Maximal Inhibitory Concentration (IC50)	0.03 nM	High HER2 expression (HER2 +++)
Method Description	To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
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)	0.50 nM±0.04 nM	High HER2 expression (HER2 +++)
Method Description	To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model	Gastric tubular adenocarcinoma	NCI-N87 cells		CVCL_1603

Experiment 1 Reporting the Activity Date of This ADC					[1]
Efficacy Data	Half Maximal Inhibitory Concentration (IC50)	0.04 nM	High HER2 expression (HER2 +++)
Method Description	To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
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)	0.06 nM±0.01 nM	High HER2 expression (HER2 +++)
Method Description	To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model	Invasive breast carcinoma	BT-474 cells		CVCL_0179
Experiment 3 Reporting the Activity Date of This ADC					[1]
Efficacy Data	Half Maximal Inhibitory Concentration (IC50)	0.62 nM±0.08 nM	High HER2 expression (HER2 +++)
Method Description	To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model	Gastric tubular adenocarcinoma	NCI-N87 cells		CVCL_1603

Experiment 1 Reporting the Activity Date of This ADC					[1]
Efficacy Data	Half Maximal Inhibitory Concentration (IC50)	0.05 nM±0.01 nM	High HER2 expression (HER2 +++)
Method Description	To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
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)	0.08 nM±0.02 nM	High HER2 expression (HER2 +++)
Method Description	To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model	Invasive breast carcinoma	BT-474 cells		CVCL_0179
Experiment 3 Reporting the Activity Date of This ADC					[1]
Efficacy Data	Half Maximal Inhibitory Concentration (IC50)	0.10 nM±0.21 nM	High HER2 expression (HER2 +++)
Method Description	To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model	Gastric tubular adenocarcinoma	NCI-N87 cells		CVCL_1603

Experiment 1 Reporting the Activity Date of This ADC					[1]
Efficacy Data	Half Maximal Inhibitory Concentration (IC50)	0.05 nM±0.05 nM	High HER2 expression (HER2 +++)
Method Description	To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
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)	0.54 nM±0.07 nM	High HER2 expression (HER2 +++)
Method Description	To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model	Invasive breast carcinoma	BT-474 cells		CVCL_0179
Experiment 3 Reporting the Activity Date of This ADC					[1]
Efficacy Data	Half Maximal Inhibitory Concentration (IC50)	0.76 nM±0.15 nM	High HER2 expression (HER2 +++)
Method Description	To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model	Gastric tubular adenocarcinoma	NCI-N87 cells		CVCL_1603

Experiment 1 Reporting the Activity Date of This ADC					[1]
Efficacy Data	Half Maximal Inhibitory Concentration (IC50)	0.05 nM±0.02 nM	High HER2 expression (HER2 +++)
Method Description	To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
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)	0.65 nM±0.04 nM	High HER2 expression (HER2 +++)
Method Description	To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model	Gastric tubular adenocarcinoma	NCI-N87 cells		CVCL_1603
Experiment 3 Reporting the Activity Date of This ADC					[1]
Efficacy Data	Half Maximal Inhibitory Concentration (IC50)	0.65 nM±0.05 nM	High HER2 expression (HER2 +++)
Method Description	To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model	Invasive breast carcinoma	BT-474 cells		CVCL_0179

Experiment 1 Reporting the Activity Date of This ADC					[1]
Efficacy Data	Half Maximal Inhibitory Concentration (IC50)	0.06 nM±0.04 nM	High HER2 expression (HER2 +++)
Method Description	To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
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)	0.75 nM±0.06 nM	High HER2 expression (HER2 +++)
Method Description	To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model	Gastric tubular adenocarcinoma	NCI-N87 cells		CVCL_1603
Experiment 3 Reporting the Activity Date of This ADC					[1]
Efficacy Data	Half Maximal Inhibitory Concentration (IC50)	0.79 nM±0.24 nM	High HER2 expression (HER2 +++)
Method Description	To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model	Invasive breast carcinoma	BT-474 cells		CVCL_0179

Experiment 1 Reporting the Activity Date of This ADC					[1]
Efficacy Data	Half Maximal Inhibitory Concentration (IC50)	0.07 nM±0.01 nM	High HER2 expression (HER2 +++)
Method Description	To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
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)	0.11 nM±0.02 nM	High HER2 expression (HER2 +++)
Method Description	To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model	Invasive breast carcinoma	BT-474 cells		CVCL_0179
Experiment 3 Reporting the Activity Date of This ADC					[1]
Efficacy Data	Half Maximal Inhibitory Concentration (IC50)	0.78 nM±0.02 nM	High HER2 expression (HER2 +++)
Method Description	To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model	Gastric tubular adenocarcinoma	NCI-N87 cells		CVCL_1603

Experiment 1 Reporting the Activity Date of This ADC					[1]
Efficacy Data	Half Maximal Inhibitory Concentration (IC50)	0.08 nM±0.01 nM	High HER2 expression (HER2 +++)
Method Description	To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
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)	0.77 nM±0.15 nM	High HER2 expression (HER2 +++)
Method Description	To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model	Invasive breast carcinoma	BT-474 cells		CVCL_0179
Experiment 3 Reporting the Activity Date of This ADC					[1]
Efficacy Data	Half Maximal Inhibitory Concentration (IC50)	0.84 nM±0.15 nM	High HER2 expression (HER2 +++)
Method Description	To determine the IC50 values of the ADCs, different concentrations of each conjugate was directly added to the culture medium. After the cells were cultured for 3 days at 37°C, the number of viable cells was quantified by using the WST- reagent, and the absorbance was measured at OD450.
In Vitro Model	Gastric tubular adenocarcinoma	NCI-N87 cells		CVCL_1603

Ref 1	Preparation and characterization of antibody-drug conjugates acting on HER2-positive cancer cells. PLoS One. 2020 Sep 28;15(9):e0239813. doi: 10.1371/journal.pone.0239813. eCollection 2020.