Main elements of antibody-drug conjugate (ADC): Linker (cleavable/non-cleavable, structure and mechanism)

SOCAIL MEDIA

Table2. Chemical triggers

Conjugate linker is not only the molecular part forming covalent connection between antibody and small molecule payload, but also the key element with design properties in targeted drug therapy. The addition of linkers should not induce aggregation, and it is necessary to ensure acceptable PK characteristics, limit the premature release (stability) of payloads in plasma and effectively release active molecules at targeted action sites. In the process of connection, there are many conjugate companies. Connectors are divided into two types: non-cleavable linkers and cleavable linkers.1

ADC based on non-cleavable linker must be internalized, and the antibody part needs to be degraded by lysosomal protease to release active molecules. Many uncut linkers have been explored in the development of ADC. The most representative is n-succinimide-4 – (n-maleimide methyl) cyclohexane-1-carboxylate (SMCC), which is used by kadcyla.2

Catabolism of this structure leads to lys-smc-dm1 becoming the main tumor metabolite. In addition, drugs linked to this linker usually do not have a bystander killing/bystanerd effect, because the released catabolites have poor permeability. The current research mainly focuses on the cleavable linker.[6-7]

The use of cleavable linkers is equally feasible for the design of internalized and non internalized ADCs, because the release is triggered by the nature of the cleavage site (lysosome and / or tumor environment). Linkers can be divided into two categories: enzyme dependent and chemical (i.e. non enzyme) dependent (both have conjugate manufacturing).

Chemically dependent linker : The linker containing disulfide bond is attacked by mercaptan to release the active load. Although the reduced form of human serum albumin (HSA) in plasma is the most abundant mercaptan, its reactivity to macromolecules is very poor.8The cytoplasm also contains high levels of glutathione (GSH), a tripeptide containing sulfhydryl, which is easy to react with s-nucleophilic protein. The difference of GSH concentration in blood (micro molar range) and cytoplasm (millimolar range) and oxidative stress caused by cancer cells contribute to the preferential release of drugs in cancer cells. Linkers containing disulfide bonds are mainly related to maytansinoid payloads. The reactivity of disulfide bonds can be adjusted by steric hindrance: α- Methyl substitution significantly affects the reduction rate and resistance to mercaptan disulfide bond exchange. For example, the linker of sar-3419 obtains the best antitumor activity of spdb-DM4 through dimethyl substitution.

Hydrazone linkers show pH dependent stability, stable at neutral pH, and hydrolyze in acidic medium (pH < 6 of endosomes and pH < 5 of lysosomes) to form corresponding ketones and hydrazine.

The method has been successfully applied to immu-110, which contains a cleavable acyl hydrazone linker, which is formed by the reaction of the hydrazide of 4-maleimide methylcyclohexane-1-carboxylate (MCC) with the ketone group present in adriamycin.

Hydrazone linkers are also often used for the payloads of the calimycin family. In this case, the release is triggered by a two-step activation process: the first step is that the acid sensitive hydrazone is hydrolyzed, and the second step is that the disulfide bond is reduced by GSH to cyclize the sulfhydryl intermediate. This linker has been used in the listed Mylotarg and besponsa, but their stability in plasma is not as stable as expected and not as attractive as other cleavable linkers.

Enzyme dependent linker: In order to limit the release of payload before internalization, so as to prevent or minimize the degradation of target cells, the protein components of lysosomes become a reasonable place to find enzymes that can degrade ADC and exist in high concentration.

Cathepsin-B

Cathepsin B is a cysteine protease, which exists in advanced endosomes and lysosomes of mammals and is overexpressed in many cancer cells. Initially, a cleavable dipeptide was used as the substrate of cathepsin B as adriamycin prodrug. This work established the dipeptide part of SAR: hydrophilic residues (citrulline or arginine) are required at P1, while lipophilic residues at P2 enhance plasma stability (phenylalanine, valine or alanine).

In addition, a self degradation spacer was introduced to promote the entry of the enzyme, thus limiting the steric hindrance of the payload: the spontaneous 1,6-elimination of p-aminobenzylcarbamate (PABA) in acidic medium, releasing carbon dioxide, p-azaquinone formamide and adriamycin. Finally, this discovery was transferred from the prodrug to the ADC field, demonstrating the antigen driven cellular activity of Val CIT and Phe Lys dipeptide linkers.4

Val-Cit dipeptide is the most commonly used cleavable linker in ADCs. At present, there are up to 25 molecules in clinical stage, which may be due to its overall good plasma stability, release behavior and chemical tractability. Two approved ADC drugs (adcetris and polyvy) use the same linker MC VC PABC, which contains maleimide spacer, standard Val CIT dipeptide sequence as cathepsin substrate and PABC self degradation spacer.


Val-Ala dipeptide is also widely used. Seven molecules are in the clinical stage. The fastest progress is loncastuximab tesirine, which includes a PEGylated spacer to balance the lipophilicity of the payload sg3199 belonging to the PBD dimer family.

Research shows that Val CIT is difficult to achieve high Dar due to precipitation and aggregation. In contrast, the Val ala linker allows Dar up to 7.4 with limited aggregation (< 10%). Compared with Val CIT, Val ala has lower hydrophobicity, which explains why this linker is excellent in lipophilic payload (such as PBD dimer). Val ala linkers of seven clinical candidate ADCs are connected to PBD.

Some studies have compared the structure of Val CIT and val ala dipeptides with the payload connection of MMAE. In the case of non internalized antibodies, Val CIT and val ala linkers bound to engineered cysteine showed similar characteristics and better performance than Val Lys and val Arg analogues. In the case of anti HER2 ADC with random cysteine binding, Val ala showed less aggregation in the high Dar structure than Val CIT. On the other hand, the two linkers showed similar buffer stability, cathepsin B release efficiency, cell activity and histopathological characteristics. Tetrapeptide Gly-Gly-Phe-Gly shows all the characteristics of stable and effective cleavable linkers, which are used by the listed ADC drug enhertu. The first trimester of enhertu is a plasma stable ADC with a dar of 7.7. Protease degradation occurs in lysosomes and dx-8951f is released. It is an effective topoisomerase I inhibitor derived from exatecan. Since the linker does not contain solubilizers, reaching such a high Dar is very considerable because it contradicts the widely established principle that high Dar conjugates may have poor pharmacokinetic characteristics. The self degradation spacer used here is simple and compact hemiamination, rather than the PABC used by Val-CIT linker.

Phosphatase and pyrophosphatase

Like cathepsin, pyrophosphatase and phosphatase are hydrolases selectively expressed in lysosomes. In 2016, Merck researchers designed a linker containing phosphate and pyrophosphate to be paired with cathepsin b-sensitive Val CIT PABA to transfer glucocorticoids: phosphate / pyrophosphate partially binds between the self degrading spacer PABA and the payload. After internalization, the payload can be released in the order of cathepsin B, self degradation spacer and phosphatase (n = 1). For pyrophosphate (n = 2), another step involving pyrophosphatase may be required.

This hydrophilic and permanently charged group has the advantage of solubility. It can not only biocouple with lipophilic glucocorticoid derivatives, but also promote the purification of ADC. The residual linker in ADC is less than 0.10%. ADC containing phosphoric acid and pyrophosphoric acid has activity in vitro.

β- Glucuronidase

β- Glucuronidases are glycosidases that catalyze β- Hydrolysis of glucuronic acid residues, which are highly expressed in lysosomes and tumor stroma. Seattle genetics researchers published a groundbreaking work in 2006. Anti-CD70 ADC uses a linker containing glucuronic acid, which is attached to the self degrading spacer. This linker exhibits low levels of aggregation, high plasma stability, and strong in vivo efficacy.5

The linker is also applied to other amine containing payloads such as camptothecin analogues, sn38, ducamycin and matrine through an additional dimethylethylenediamine (DMED) self degradation spacer. Release sequence from hydrolysis β- From glucuronic acid to self degradation spacer, another cyclization reaction of DMED occurs spontaneously, forming 1,3-dimethylimidazoline-2-one, and finally releasing hydroxyl containing drugs. Due to the hydrophilicity of linker, compared with cathepsin sensitive linker, this technology makes the preparation of ADC DAR = 8 easier.

β- Galactosidase

Recently, a method of using β- Galactosidase cleaves the ADC of the linker, which contains the PEG10 spacer. The spacer was substituted by nitro to improve the self degradation rate. analogy β- Glucuronidase linker, whose dissociation mechanism involves hydrolysis β- Galactosidase moiety, which imparts hydrophilicity to chemical precursors. Another advantage is β- Galactosidase exists only in lysosomes, and β- Glucuronidase is expressed in lysosomes and in the microenvironment of solid tumors. Studies have shown that in the context of anti-HER2 ADCs releasing MMAE, it contains β- The ADC of galactosidase linker is more effective than t-dm1 in vitro and in vivo.

Sulfatase

Recently, there have been connectors cleaved by sulfatase, which is overexpressed in several cancer types and shows potential selectivity. The study involved anti-HER2 antibodies loaded with MMAE. Compared with the classical cleavable Val-Cit and Val-Ala linkers, the sulfatase linker showed similar efficacy on HER2+ cell lines.

Product List

Target
Filters Sort results
Reset Apply
Cat No.
Products Name (INN Index)
INN Name
Previous Name
Target
Format
Order
Pre-Made Telimomab Aritox Biosimilar, Whole Mab Adc, Anti-Cd5 Antibody: Anti-LEU1/T1 therapeutic antibody
telimomab aritox
NA
CD5
ADC
Pre-Made Telisotuzumab Vedotin Biosimilar, Whole Mab Adc, Anti-Met Antibody: Anti-AUTS9/DFNB97/HGFR/RCCP2/c-Met therapeutic antibody Drug Conjugate
telisotuzumab vedotin
NA
MET
Whole mAb ADC
Pre-Made Tisotumab Vedotin Biosimilar, Whole Mab Adc, Anti-F3 Antibody: Anti-CD142/TF/TFA therapeutic antibody Drug Conjugate
tisotumab vedotin
NA
F3
Whole mAb ADC
Pre-Made Trastuzumab Deruxtecan Biosimilar, Whole Mab Adc, Anti-ERBB2/HER2 Antibody: Anti-CD340/neu/MLN 19/NEU/NGL/TKR1/VSCN2/c-ERB-2/c-ERB2 therapeutic antibody Drug Conjugate
trastuzumab deruxtecan
NA
ERBB2
Whole mAb ADC
Pre-Made Trastuzumab Duocarmazine Biosimilar, Whole Mab Adc, Anti-ERBB2/HER2 Antibody: Anti-CD340/neu/MLN 19/NEU/NGL/TKR1/VSCN2/c-ERB-2/c-ERB2 therapeutic antibody Drug Conjugate
trastuzumab duocarmazine
NA
ERBB2
Whole mAb ADC
Pre-Made Trastuzumab Emtansine Biosimilar, Whole Mab Adc, Anti-ERBB2/HER2 Antibody: Anti-CD340/neu/MLN 19/NEU/NGL/TKR1/VSCN2/c-ERB-2/c-ERB2 therapeutic antibody Drug Conjugate
trastuzumab emtansine
NA
ERBB2
Whole mAb ADC
Pre-Made Tusamitamab Ravtansine Biosimilar, Whole Mab Adc, Anti-CEACAM5/CD66e Antibody: Anti-CEA therapeutic antibody Drug Conjugate
tusamitamab ravtansine
NA
CEACAM5
Whole mAb ADC
Pre-Made Upifitamab Rilsodotin Biosimilar, Whole Mab Adc, Anti-Slc34A2 Antibody: Anti-NAPI-3B/NAPI-IIb/NPTIIb/PULAM therapeutic antibody Drug Conjugate
upifitamab rilsodotin
NA
SLC34A2
Whole mAb ADC
Pre-Made Vadastuximab Talirine Biosimilar, Whole Mab Adc, Anti-Cd33 Antibody: Anti-SIGLEC-3/SIGLEC3/p67 therapeutic antibody Drug Conjugate
vadastuximab talirine
NA
CD33
Whole mAb ADC
Pre-Made Vandortuzumab Vedotin Biosimilar, Whole Mab Adc, Anti-Steap1 Antibody: Anti-PRSS24/STEAP therapeutic antibody Drug Conjugate
vandortuzumab vedotin
NA
STEAP1
Whole mAb ADC
Pre-Made Vorsetuzumab Mafodotin Biosimilar, Whole Mab Adc, Anti-CD70/CD27-L Antibody: Anti-CD27LG/LPFS3/TNFSF7/TNLG8A therapeutic antibody Drug Conjugate
vorsetuzumab mafodotin
NA
CD70
Whole mAb ADC
Pre-Made Zilovertamab Vedotin Biosimilar, Whole Mab Adc, Anti-Ror1 Antibody: Anti-NTRKR1/dJ537F10.1 therapeutic antibody Drug Conjugate
zilovertamab vedotin
NA
ROR1
Whole mAb ADC
Pre-Made Zolimomab Aritox Biosimilar, Whole Mab Adc, Anti-Cd5 Antibody: Anti-LEU1/T1 therapeutic antibody
zolimomab aritox
NA
CD5
ADC
Pre-Made Actinium (225Ac) Lintuzumab Satetraxetan Biosimilar, Whole Mab Adc, Anti-Cd33 Antibody: Anti-SIGLEC-3/SIGLEC3/p67 therapeutic antibody Drug Conjugate
actinium (225Ac) lintuzumab satetraxetan
NA
CD33
Whole mAb ADC
Pre-Made Anetumab Corixetan Biosimilar, Whole Mab Adc, Anti-Msln Antibody: Anti-MPF/SMRP therapeutic antibody Drug Conjugate
anetumab corixetan
NA
MSLN
Whole mAb ADC
Pre-Made Anetumab Ravtansine Biosimilar, Whole Mab Adc, Anti-Msln Antibody: Anti-MPF/SMRP therapeutic antibody Drug Conjugate
anetumab ravtansine
NA
MSLN
Whole mAb ADC
Pre-Made Aprutumab Ixadotin Biosimilar, Whole Mab Adc, Anti-Fgfr2 Antibody: Anti-BBDS/BEK/BFR-1/CD332/CEK3/CFD1/ECT1/JWS/K-SAM/KGFR/TK14/TK25 therapeutic antibody Drug Conjugate
aprutumab ixadotin
NA
FGFR2
Whole mAb ADC
Pre-Made Azintuxizumab Vedotin Biosimilar, Whole Mab Adc, Anti-SLAMF7/CS1 Antibody: Anti-19A/CD319/CRACC therapeutic antibody Drug Conjugate
azintuxizumab vedotin
NA
SLAMF7
Whole mAb ADC
Pre-Made Belantamab Mafodotin Biosimilar, Whole Mab Adc, Anti-Tnfrsf17 Antibody: Anti-BCM/BCMA/CD269/TNFRSF13A therapeutic antibody Drug Conjugate
belantamab mafodotin
NA
TNFRSF17
Whole mAb ADC
Pre-Made Brentuximab Vedotin Biosimilar, Whole Mab Adc, Anti-Tnfrsf8 Antibody: Anti-CD30/D1S166E/Ki-1 therapeutic antibody Drug Conjugate
brentuximab vedotin
NA
TNFRSF8
Whole mAb ADC
Pre-Made Camidanlumab Tesirine Biosimilar, Whole Mab Adc, Anti-Il2Ra Antibody: Anti-CD25/IDDM10/IL2R/IMD41/TCGFR/p55 therapeutic antibody Drug Conjugate
camidanlumab tesirine
NA
IL2RA
Whole mAb ADC
Pre-Made Cantuzumab Mertansine Biosimilar, Whole Mab Adc, Anti-Muc1 Antibody: Anti-ADMCKD/ADMCKD1/ADTKD2/CA 15-3/CD227/Ca15-3/EMA/H23AG/KL-6/MAM6/MCD/MCKD/MCKD1/SEC/X/ZD/PEM/PEMT/PUM therapeutic anti
cantuzumab mertansine
NA
MUC1
Whole mAb ADC
Pre-Made Cantuzumab Ravtansine Biosimilar, Whole Mab Adc, Anti-Muc1 Antibody: Anti-ADMCKD/ADMCKD1/ADTKD2/CA 15-3/CD227/Ca15-3/EMA/H23AG/KL-6/MAM6/MCD/MCKD/MCKD1/SEC/X/ZD/PEM/PEMT/PUM therapeutic anti
cantuzumab ravtansine
NA
MUC1
Whole mAb ADC
Pre-Made Cetuximab Sarotalocan Biosimilar, Whole Mab Adc, Anti-Egfr Antibody: Anti-ERBB/ERBB1/ERRP/HER1/NISBD2/PIG61/mENA therapeutic antibody Drug Conjugate
cetuximab sarotalocan
NA
EGFR
Whole mAb ADC
Pre-Made Clivatuzumab Tetraxetan Biosimilar, Whole Mab Adc, Anti-Muc1 Antibody: Anti-ADMCKD/ADMCKD1/ADTKD2/CA 15-3/CD227/Ca15-3/EMA/H23AG/KL-6/MAM6/MCD/MCKD/MCKD1/SEC/X/ZD/PEM/PEMT/PUM therapeutic an
clivatuzumab tetraxetan
NA
MUC1
Whole mAb ADC
Pre-Made Cofetuzumab Pelidotin Biosimilar, Whole Mab Adc, Anti-Ptk7 Antibody: Anti-CCK-4/CCK4 therapeutic antibody Drug Conjugate
cofetuzumab pelidotin
NA
PTK7
Whole mAb ADC
Pre-Made Coltuximab Ravtansine Biosimilar, Whole Mab Adc, Anti-Cd19 Antibody: Anti-B4/CVID3 therapeutic antibody Drug Conjugate
coltuximab ravtansine
NA
CD19
Whole mAb ADC
Pre-Made Dafsolimab Setaritox Biosimilar, Whole Mab Adc, Anti-Cd3E Antibody: Anti-CD3epsilon/IMD18/T3E/TCRE therapeutic antibody Drug Conjugate
dafsolimab setaritox
NA
CD3E
Whole mAb ADC
Pre-Made Datopotamab Deruxtecan Biosimilar, Whole Mab Adc, Anti-Tacstd2 Antibody: Anti-EGP-1/EGP1/GA733-1/GA7331/GP50/M1S1/TROP2 therapeutic antibody Drug Conjugate
datopotamab deruxtecan
NA
TACSTD2
Whole mAb ADC
Pre-Made Denintuzumab Mafodotin Biosimilar, Whole Mab Adc, Anti-Cd19 Antibody: Anti-B4/CVID3 therapeutic antibody Drug Conjugate
denintuzumab mafodotin
NA
CD19
Whole mAb ADC
Pre-Made Depatuxizumab Mafodotin Biosimilar, Whole Mab Adc, Anti-Egfr Antibody: Anti-ERBB/ERBB1/ERRP/HER1/NISBD2/PIG61/mENA therapeutic antibody Drug Conjugate
depatuxizumab mafodotin
NA
EGFR
Whole mAb ADC
Pre-Made Disitamab Vedotin Biosimilar, Whole Mab Adc, Anti-ERBB2/HER2 Antibody: Anti-CD340/neu/MLN 19/NEU/NGL/TKR1/VSCN2/c-ERB-2/c-ERB2 therapeutic antibody Drug Conjugate
disitamab vedotin
NA
ERBB2
Whole mAb ADC
Pre-Made Dorlimomab Aritox Biosimilar, Whole Mab Adc: Anti-40S Ribosomal Protein S18 therapeutic antibody
dorlimomab aritox
NA
40S ribosomal protein S18
ADC
Pre-Made Enapotamab Vedotin Biosimilar, Whole Mab Adc, Anti-Axl Antibody: Anti-ARK/JTK11/Tyro7/UFO therapeutic antibody Drug Conjugate
enapotamab vedotin
NA
AXL
Whole mAb ADC
Pre-Made Enfortumab Vedotin Biosimilar, Whole Mab Adc, Anti-PVRL4/NECTIN4 Antibody: Anti-EDSS1/LNIR/PRR4/nectin-4 therapeutic antibody Drug Conjugate
enfortumab vedotin
NA
PVRL4
Whole mAb ADC
Pre-Made Farletuzumab Ecteribulin Biosimilar, Whole Mab Adc, Anti-Folr1 Antibody: Anti-FBP/FOLR/FRalpha/NCFTD therapeutic antibody Drug Conjugate
farletuzumab ecteribulin
NA
FOLR1
Whole mAb ADC
Pre-Made Gemtuzumab Ozogamicin Biosimilar, Whole Mab Adc, Anti-Cd33 Antibody: Anti-SIGLEC-3/SIGLEC3/p67 therapeutic antibody Drug Conjugate
gemtuzumab ozogamicin
NA
CD33
Whole mAb ADC
Pre-Made Glembatumumab Vedotin Biosimilar, Whole Mab Adc, Anti-Gpnmb Antibody: Anti-HGFIN/NMB/PLCA3 therapeutic antibody Drug Conjugate
glembatumumab vedotin
NA
GPNMB
Whole mAb ADC
Pre-Made Grisnilimab Setaritox Biosimilar, Whole Mab Adc, Anti-Cd7 Antibody: Anti-GP40/LEU-9/TP41/Tp40 therapeutic antibody Drug Conjugate
grisnilimab setaritox
NA
CD7
Whole mAb ADC
Pre-Made Iladatuzumab Vedotin Biosimilar, Whole Mab Adc, Anti-Cd79B Antibody: Anti-AGM6/B29/IGB therapeutic antibody Drug Conjugate
iladatuzumab vedotin
NA
CD79B
Whole mAb ADC
Pre-Made Indatuximab Ravtansine Biosimilar, Whole Mab Adc, Anti-Sdc1 Antibody: Anti-CD138/SDC/SYND1/syndecan therapeutic antibody Drug Conjugate
indatuximab ravtansine
NA
SDC1
Whole mAb ADC
Pre-Made Indusatumab Vedotin Biosimilar, Whole Mab Adc, Anti-Gucy2C Antibody: Anti-DIAR6/GC-C/GUC2C/MECILIL/STAR therapeutic antibody Drug Conjugate
indusatumab vedotin
NA
GUCY2C
Whole mAb ADC
Pre-Made Inotuzumab Ozogamicin Biosimilar, Whole Mab Adc, Anti-Cd22 Antibody: Anti-SIGLEC-2/SIGLEC2 therapeutic antibody Drug Conjugate
inotuzumab ozogamicin
NA
CD22
Whole mAb ADC
Pre-Made Labetuzumab Govitecan Biosimilar, Whole Mab Adc, Anti-CEACAM5/CD66e Antibody: Anti-CEA therapeutic antibody Drug Conjugate
labetuzumab govitecan
NA
CEACAM5
Whole mAb ADC
Pre-Made Ladiratuzumab Vedotin Biosimilar, Whole Mab Adc, Anti-Slc39A6 Antibody: Anti-LIV-1/LIV1/ZIP6 therapeutic antibody Drug Conjugate
ladiratuzumab vedotin
NA
SLC39A6
Whole mAb ADC
Pre-Made Laprituximab Emtansine Biosimilar, Whole Mab Adc, Anti-Egfr Antibody: Anti-ERBB/ERBB1/ERRP/HER1/NISBD2/PIG61/mENA therapeutic antibody Drug Conjugate
laprituximab emtansine
NA
EGFR
Whole mAb ADC
Pre-Made Lifastuzumab Vedotin Biosimilar, Whole Mab Adc, Anti-Slc34A2 Antibody: Anti-NAPI-3B/NAPI-IIb/NPTIIb/PULAM therapeutic antibody Drug Conjugate
lifastuzumab vedotin
NA
SLC34A2
Whole mAb ADC
Pre-Made Loncastuximab Tesirine Biosimilar, Whole Mab Adc, Anti-Cd19 Antibody: Anti-B4/CVID3 therapeutic antibody Drug Conjugate
loncastuximab tesirine
NA
CD19
Whole mAb ADC
Pre-Made Lonigutamab Ugodotin Biosimilar, Whole Mab Adc, Anti-Igf1R Antibody: Anti-CD221/IGFIR/IGFR/JTK13 therapeutic antibody Drug Conjugate
lonigutamab ugodotin
NA
IGF1R
Whole mAb ADC
Pre-Made Lorvotuzumab Mertansine Biosimilar, Whole Mab Adc, Anti-Ncam1 Antibody: Anti-CD56/MSK39/NCAM therapeutic antibody Drug Conjugate
lorvotuzumab mertansine
NA
NCAM1
Whole mAb ADC
1 2 3

Reference

1. Su Z , Xiao D , Xie F , et al. Antibodydrug conjugates: Recent advances in linker chemistry[J]. Acta Pharmaceutica Sinica B, 2021.
2. Chen Y , Kim M T , Zheng L , et al. Structural Characterization of Cross-Linked Species in Trastuzumab Emtansine (Kadcyla)[J]. Bioconjugate Chemistry, 2016.
3. Seki H , Walsh S J , Bargh J D , et al. Rapid and robust cysteine bioconjugation with vinylheteroarenes. 2021.
4. Kostova V, Désos P, Starck JB, Kotschy A. The Chemistry Behind ADCs. Pharmaceuticals (Basel). 2021;14(5):442.
5. Kostova, V.; Désos, P.; Starck, J.-B.; Kotschy, A. The Chemistry Behind ADCs. Pharmaceuticals 2021, 14, 442.
6. Singh A P , Sharma S , Shah D K . Quantitative characterization of in vitro bystander effect of antibody-drug conjugates[J]. J Pharmacokinet Pharmacodyn, 2016, 43(6):567-582.
7. Aleksandr V. Yurkovetskiy;Natalya D. Bodyak;Mao Yin;A Novel Antibody–Drug Conjugate Platform Featuring High Drug Loading and a Controlled Bystander Effect