Abstract
ADCs are empowered monoclonal antibodies that are designed to harness their targeting ability by linking them to cell-killing agents. They are made up of three main components, the antibody, linker and the cytotoxic drug. The specificity of the antibody with the antigen on the tumor cell surface helps with its internalization into the cell after which the active drug is released causing cell death. The investigation of ADCs can be done using a variety of MS methods. Here, we talk about the bottom-up approach, the top-down approaches such as ECD and ETD, the ESI/MS method and IM-MS. Further, we also focus on the applications of MALDI/MS such as UV-MALDI, IR-MALDI and IMS-MALDI and provide examples of the mass spectra that provide tremendous amount of information on ADC structures.
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Abbreviations
- ADC:
-
Antibody-drug conjugates
- ALCL:
-
Anaplastic large cell lymphoma
- CDRs:
-
Complementary determining regions
- DAR:
-
Drug to antibody ratio
- ECD:
-
Electron capture dissociation
- ESI:
-
Electrospray ionization
- ETD:
-
Electron transfer dissociation
- HL:
-
Hodgkin’s lymphoma
- IM:
-
Ion mobility
- mAbs:
-
Monoclonal antibodies
- MALDI:
-
Matrix assisted laser desorption ionization
- MMAE:
-
Monomethyl auristatin E
- MS:
-
Mass spectrometry
- PTM:
-
Posttranslational modification
- SCLC:
-
Small cell lung carcinoma
- TDCs:
-
THIOMAB drug conjugates
- TOF:
-
Time of flight
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Jayathirtha, M., Darie, C.C. (2019). Investigation of Antibody-Drug Conjugates by Mass Spectrometry. In: Woods, A., Darie, C. (eds) Advancements of Mass Spectrometry in Biomedical Research. Advances in Experimental Medicine and Biology, vol 1140. Springer, Cham. https://doi.org/10.1007/978-3-030-15950-4_14
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