General Information of This Antibody-drug Conjugate (ADC)
ADC ID
DRG0CXMGC
ADC Name
Isotype-SG3376
Synonyms
Isotype-SG3376
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Organization
CL Great Ormond Street Institute of Child Health, Zayed Centre of Research, 20 Guilford Street, London WC1N 1DZ, UK; UCL Cancer Institute, 72 Huntley Street, London, UK.
Drug Status
Investigative
Drug-to-Antibody Ratio
2
Structure
Antibody Name
undisclosed
Antigen Name
Undisclosed
Payload Name
SG3199
 Payload Info 
Therapeutic Target
Human Deoxyribonucleic acid (hDNA)
 Target Info 
Linker Name
Undisclosed
Conjugate Type
Random conjugation through reduced inter-chain cysteines.
Combination Type
SG3249
General Information of The Activity Data Related to This ADC
Revealed Based on the Cell Line Data
Click To Hide/Show 3 Activity Data Related to This Level
Standard Type Value Units Cell Line Disease Model
Half Maximal inhibitory Concentration (lC50) 
2288.3
pM
CVCL_2149
Acute erythroid leukemia
Half Maximal inhibitory Concentration (lC50) 
3399.8
pM
CVCL_0065
T acute lymphoblastic leukemia
Half Maximal inhibitory Concentration (lC50) 
> 6000
pM
CVCL_0063
Normal
Full List of Activity Data of This Antibody-drug Conjugate
Revealed Based on the Cell Line Data
Click To Hide/Show 3 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal inhibitory Concentration (lC50) 2288.3 pM Positive CD45 expression (CD45+++/++)
Method Description
Cells at 0.5 × 105/mL were cultured for 5 days in mAb or ADC or medium (in triplicate wells) in wells of flat-bottom 96-well plates. PrestoBlue Cell Viability reagent (Thermo Fisher Scientific) was added and incubated for 1.5 h. Fluorescence intensity from each well was detected using a FLUOstar OPTIMA microplate reader (BMG Labtech, Aylesbury, UK) using excitation filter of 560-10 and emission filter of 590-10, and gain at 1,500. Data were plotted using GraphPad Prism software, and sigmoid dose-response non-linear regression was carried out to determine IC50 values.

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In Vitro Model Acute erythroid leukemia OCIM1 cells CVCL_2149
Experiment 2 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal inhibitory Concentration (lC50) 3399.8 pM Positive CD45 expression (CD45+++/++)
Method Description
Cells at 0.5 × 105/mL were cultured for 5 days in mAb or ADC or medium (in triplicate wells) in wells of flat-bottom 96-well plates. PrestoBlue Cell Viability reagent (Thermo Fisher Scientific) was added and incubated for 1.5 h. Fluorescence intensity from each well was detected using a FLUOstar OPTIMA microplate reader (BMG Labtech, Aylesbury, UK) using excitation filter of 560-10 and emission filter of 590-10, and gain at 1,500. Data were plotted using GraphPad Prism software, and sigmoid dose-response non-linear regression was carried out to determine IC50 values.

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In Vitro Model T acute lymphoblastic leukemia Jurkat cells CVCL_0065
Experiment 3 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal inhibitory Concentration (lC50) > 6000 pM Negative CD45 expression (CD45-)
Method Description
Cells at 0.5 × 105/mL were cultured for 5 days in mAb or ADC or medium (in triplicate wells) in wells of flat-bottom 96-well plates. PrestoBlue Cell Viability reagent (Thermo Fisher Scientific) was added and incubated for 1.5 h. Fluorescence intensity from each well was detected using a FLUOstar OPTIMA microplate reader (BMG Labtech, Aylesbury, UK) using excitation filter of 560-10 and emission filter of 590-10, and gain at 1,500. Data were plotted using GraphPad Prism software, and sigmoid dose-response non-linear regression was carried out to determine IC50 values.

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In Vitro Model Normal 293T cells CVCL_0063
References
Ref 1 Anti-CD45 PBD-based antibody-drug conjugates are effective targeted conditioning agents for gene therapy and stem cell transplant