General Information of This Antibody-drug Conjugate (ADC)
ADC ID
DRG0EHJDA
ADC Name
H233 VC-qDuoDM gluc
Synonyms
H233 VC-qDuoDM gluc
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Organization
Center for Translational Cancer Research, The Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, Texas.
Drug Status
Investigative
Structure
Antibody Name
H231
 Antibody Info 
Antigen Name
Epiregulin (EREG)
 Antigen Info 
Payload Name
Undisclosed
Therapeutic Target
Stimulator of interferon genes protein (STING1)
 Target Info 
Linker Name
BCN-PEG3-EGC-PABQ
 Linker Info 
Conjugate Type
Random conjugation through reduced inter-chain cysteines.
ADC-specific functional property(2027 Update)
Binding Affinity
Click To Hide/Show 1 ADC-specific functional property Data
Dissocation Constant (Kd) Binding Target Description Reference
2 nM
EREG
Prior to evaluating therapeutic efficacy, we measured binding of all three EREG ADCs in parallel in DLD1 cells. All ADCs demonstrated comparable binding affinities
[1]
General Information of The Activity Data Related to This ADC
Revealed Based on the Cell Line Data
Click To Hide/Show 7 Activity Data Related to This Level
Standard Type Value Units Cell Line Disease Model
Half Maximal inhibitory Concentration (lC50) 
0.01&#1770.004
nM
CVCL_0399
Colon adenocarcinoma
Half Maximal inhibitory Concentration (lC50) 
0.02&#1770.009
nM
CVCL_0291
Colon carcinoma
Half Maximal inhibitory Concentration (lC50) 
0.14&#1770.16
nM
CVCL_0248
Colon adenocarcinoma
Half Maximal inhibitory Concentration (lC50) 
0.31&#1770.05
nM
CVCL_1724
Colon adenocarcinoma
Half Maximal inhibitory Concentration (lC50) 
> 10000
nM
CVCL_0248
Colon adenocarcinoma
Half Maximal inhibitory Concentration (lC50) 
> 10000
nM
CVCL_0547
Colon adenocarcinoma
Half Maximal inhibitory Concentration (lC50) 
> 10000
nM
CVCL_0504
Colon carcinoma
Full List of Activity Data of This Antibody-drug Conjugate
Revealed Based on the Cell Line Data
Click To Hide/Show 7 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal inhibitory Concentration (lC50) 0.01&#1770.004 nM Moderate EREG expression (EREG++)
Method Description
Cancer cells were plated at ~1,000 cells/well in 96-half-well plates. Serial dilutions of unconjugated H231, cmAb, H231 ADCs, or cADC were added and incubated at 37°C for 4 or 5 days. Cell viability was measured using CellTiter-Glo 2.0 (Promega, cat. #G9242) according to the manufacturer's protocol. Luminescence was measured using a Tecan Infinite M1000 plate reader (RRID: SCR_025732).

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In Vitro Model Colon adenocarcinoma LoVo cells CVCL_0399
Experiment 2 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal inhibitory Concentration (lC50) 0.02&#1770.009 nM High EREG expression (EREG +++)
Method Description
Cancer cells were plated at ~1,000 cells/well in 96-half-well plates. Serial dilutions of unconjugated H231, cmAb, H231 ADCs, or cADC were added and incubated at 37°C for 4 or 5 days. Cell viability was measured using CellTiter-Glo 2.0 (Promega, cat. #G9242) according to the manufacturer's protocol. Luminescence was measured using a Tecan Infinite M1000 plate reader (RRID: SCR_025732).

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In Vitro Model Colon carcinoma HCT116 cells CVCL_0291
Experiment 3 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal inhibitory Concentration (lC50) 0.14&#1770.16 nM Moderate EREG expression (EREG++)
Method Description
Cancer cells were plated at ~1,000 cells/well in 96-half-well plates. Serial dilutions of unconjugated H231, cmAb, H231 ADCs, or cADC were added and incubated at 37°C for 4 or 5 days. Cell viability was measured using CellTiter-Glo 2.0 (Promega, cat. #G9242) according to the manufacturer's protocol. Luminescence was measured using a Tecan Infinite M1000 plate reader (RRID: SCR_025732).

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In Vitro Model Colon adenocarcinoma DLD-1 cells CVCL_0248
Experiment 4 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal inhibitory Concentration (lC50) 0.31&#1770.05 nM Low EREG expression (EREG+)
Method Description
Cancer cells were plated at ~1,000 cells/well in 96-half-well plates. Serial dilutions of unconjugated H231, cmAb, H231 ADCs, or cADC were added and incubated at 37°C for 4 or 5 days. Cell viability was measured using CellTiter-Glo 2.0 (Promega, cat. #G9242) according to the manufacturer's protocol. Luminescence was measured using a Tecan Infinite M1000 plate reader (RRID: SCR_025732).

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In Vitro Model Colon adenocarcinoma SW48 cells CVCL_1724
Experiment 5 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal inhibitory Concentration (lC50) > 10000 nM Negative EREG expression (EREG-)
Method Description
Cancer cells were plated at ~1,000 cells/well in 96-half-well plates. Serial dilutions of unconjugated H231, cmAb, H231 ADCs, or cADC were added and incubated at 37°C for 4 or 5 days. Cell viability was measured using CellTiter-Glo 2.0 (Promega, cat. #G9242) according to the manufacturer's protocol. Luminescence was measured using a Tecan Infinite M1000 plate reader (RRID: SCR_025732).

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In Vitro Model Colon adenocarcinoma DLD-1 cells (EREG KO) CVCL_0248
Experiment 6 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal inhibitory Concentration (lC50) > 10000 nM Low EREG expression (EREG+)
Method Description
Cancer cells were plated at ~1,000 cells/well in 96-half-well plates. Serial dilutions of unconjugated H231, cmAb, H231 ADCs, or cADC were added and incubated at 37°C for 4 or 5 days. Cell viability was measured using CellTiter-Glo 2.0 (Promega, cat. #G9242) according to the manufacturer's protocol. Luminescence was measured using a Tecan Infinite M1000 plate reader (RRID: SCR_025732).

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In Vitro Model Colon adenocarcinoma SW620 cells CVCL_0547
Experiment 7 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal inhibitory Concentration (lC50) > 10000 nM Negative EREG expression (EREG-)
Method Description
Cancer cells were plated at ~1,000 cells/well in 96-half-well plates. Serial dilutions of unconjugated H231, cmAb, H231 ADCs, or cADC were added and incubated at 37°C for 4 or 5 days. Cell viability was measured using CellTiter-Glo 2.0 (Promega, cat. #G9242) according to the manufacturer's protocol. Luminescence was measured using a Tecan Infinite M1000 plate reader (RRID: SCR_025732).

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In Vitro Model Colon carcinoma RKO cells CVCL_0504
References
Ref 1 Antibody-Drug Conjugates Targeting the EGFR Ligand Epiregulin Elicit Robust Antitumor Activity in Colorectal Cancer