General Information of This Linker
Linker ID
LIN0ZXXPD
Linker Name
P5 (PEG24)-VC-PAB
Linker Type
Cathepsin-cleavable linker
Antibody-Linker Relation
Cleavable
Structure
Formula
C75H131N6O31P
Isosmiles
CC([C@H](NC(C1=CC=C(NP(C#C)(OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO)=O)C=C1)=O)C(N[C@@H](CCCNC(N)=O)C(NC2=CC=C(CO)C=C2)=O)=O)C
InChI
InChI=1S/C75H131N6O31P/c1-4-113(88,81-69-13-9-67(10-14-69)72(84)80-71(65(2)3)74(86)79-70(6-5-15-77-75(76)87)73(85)78-68-11-7-66(64-83)8-12-68)112-63-62-111-61-60-110-59-58-109-57-56-108-55-54-107-53-52-106-51-50-105-49-48-104-47-46-103-45-44-102-43-42-101-41-40-100-39-38-99-37-36-98-35-34-97-33-32-96-31-30-95-29-28-94-27-26-93-25-24-92-23-22-91-21-20-90-19-18-89-17-16-82/h1,7-14,65,70-71,82-83H,5-6,15-64H2,2-3H3,(H,78,85)(H,79,86)(H,80,84)(H,81,88)(H3,76,77,87)/t70-,71-,113?/m0/s1
InChIKey
PLVBDTJIUHDXIM-LTZMSPKPSA-N
Pharmaceutical Properties
Molecule Weight
1643.858
Polar area
433.5
Complexity
2481.011142
xlogp Value
2.0917
Heavy Count
113
Rot Bonds
86
Hbond acc
31
Hbond Donor
8
Each Antibody-drug Conjugate Related to This Linker
Full Information of The Activity Data of The ADC(s) Related to This Linker
37828728 ADC 5 [Investigative]
Revealed Based on the Cell Line Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [1]
Efficacy Data Half Maximal Effective Concentration (EC50)
12.5 ng/mL
Positive HER2 expression (HER2+++/++)
Method Description
To investigate the cytotoxicity of the unconjugated small-molecule TOP1 inhibitors and ADCs, respective cells were incubated for 4 days (small molecules) and 7 days (ADCs) with increasing concentrations of small molecules (0.015-1,000 nmol/L) and ADCs (0.05-3 ug/mL) to generate a dose-response curve. Killing was analyzed using resazurin cell viability dye at a final concentration of 55 umol/L (Merck) by dividing the fluorescence from control cells in medium by the fluorescence of ADC-treated cells. Fluorescence emission at 590 nmol/L was measured on a microplate reader Infinite 200 Pro (Tecan Group Ltd.).

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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 Effective Concentration (EC50)
97.6 ng/mL
Negative HER2 expression (HER2-)
Method Description
To investigate the cytotoxicity of the unconjugated small-molecule TOP1 inhibitors and ADCs, respective cells were incubated for 4 days (small molecules) and 7 days (ADCs) with increasing concentrations of small molecules (0.015-1,000 nmol/L) and ADCs (0.05-3 ug/mL) to generate a dose-response curve. Killing was analyzed using resazurin cell viability dye at a final concentration of 55 umol/L (Merck) by dividing the fluorescence from control cells in medium by the fluorescence of ADC-treated cells. Fluorescence emission at 590 nmol/L was measured on a microplate reader Infinite 200 Pro (Tecan Group Ltd.).

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In Vitro Model Lung adenocarcinoma HCC-78 cells CVCL_2061
References
Ref 1 Design and Evaluation of Phosphonamidate-Linked Exatecan Constructs for Highly Loaded, Stable, and Efficacious Antibody-Drug Conjugates