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Development of a Bioluminescent Cell-Based Assay to ... - Promega

Development of a Bioluminescent Cell-Based Assay to ... - Promega

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iological activity <strong>of</strong> therapeutic antibody preps<br />

Differentiation <strong>of</strong> blended % mixes <strong>of</strong> fully N-glycosylated & fully deglycosylated Trastuzumab<br />

RLU<br />

210 06<br />

110 06<br />

510 05<br />

210 06<br />

110 06<br />

510 05<br />

Deglycosylated 50% deglycosylated Herceptin<br />

Deglycosylated 60% deglycosylated Herceptin<br />

Deglycosylated 70% deglycosylated<br />

Herceptin<br />

unt<br />

50%unt/ 50% degly<br />

Confidential and Proprietary. Not for Further Disclosure.<br />

Deglycosylated Herceptin<br />

Deglycosylated Herceptin<br />

Deglycosylated Herceptin<br />

80% deglycosylated 90% deglycosylated 100% deglycosylated<br />

unt<br />

0<br />

-12 -10 -8<br />

log [ab], (g/ml)<br />

-6 -4<br />

EC50<br />

20%unt/80% degly<br />

unt<br />

1.720e-008<br />

20%unt/80% degly<br />

4.626e-008<br />

RLU<br />

RLU<br />

210 06<br />

110 06<br />

510 05<br />

210 06<br />

110 06<br />

510 05<br />

unt<br />

10%unt/ 90% degly<br />

0<br />

-12 -10 -8<br />

log [ab], (g/ml)<br />

-6 -4<br />

EC50<br />

unt<br />

40%unt/ 60% degly<br />

RLU Detection <strong>of</strong> small differences in Fc effec<strong>to</strong>r<br />

0<br />

-12 -10 -8<br />

log [ab], (g/ml)<br />

-6 -4<br />

EC50<br />

unt<br />

2.110e-008<br />

50%unt/ 50% degly<br />

2.990e-008<br />

0<br />

-12 -10 -8<br />

log [ab], (g/ml)<br />

-6 -4<br />

EC50<br />

unt<br />

2.082e-008<br />

unt<br />

2.037e-008<br />

40%unt/ 60% degly<br />

3.486e-008<br />

10%unt/ 90% degly<br />

7.174e-008<br />

Target cells: SKBR3; Unt = 100% glycosylated<br />

RLU<br />

RLU<br />

210 06<br />

110 06<br />

510 05<br />

210 06<br />

110 06<br />

510 05<br />

0<br />

-12 -10 -8<br />

log [ab], (g/ml)<br />

-6 -4<br />

EC50<br />

unt<br />

100% degly<br />

0<br />

-12 -10 -8<br />

log [ab], (g/ml)<br />

-6 -4<br />

EC50<br />

unt<br />

30%unt/ 70% degly<br />

unt<br />

2.002e-008<br />

unt<br />

1.988e-008<br />

30%unt/ 70% degly<br />

4.153e-008<br />

100% degly<br />

3.202e-008

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